SLING-6763 - remove org.apache.sling.commons.json and add sling-babel, contributed by Senol Tas, thanks!

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1790947 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/.gitignore b/.gitignore
index 49a77af..1deaec1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 .project
 settings.xml
 node_modules
+node
diff --git a/README.md b/README.md
index 1e3d320..3c74d20 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@
 
 It requires a function named `render` in the `esx` script that processes the request.
 
-To activate this script engine you must first **enable Nashorn support** in the 
+To activate this script engine you must first **enable Nashorn support** in the
 `sling.properties` file of your Sling instance:
 
 ```
@@ -45,27 +45,27 @@
 	  -Ftitle="Hello ESX" \
 	  -Ftext="Here's some example text" \
 	  http://localhost:8080/apps/foo
-	  
+
 Then create an ESX script to render it:
 
     $ cat << EOF > /tmp/foo.esx
     var foo = {
       render: function () {
-        var output  = "<h1>" + currentNode.properties.title + "</h1>";             
+        var output  = '<h1>\${currentNode.properties.title}</h1>';
         output += currentNode.properties.text;
         return output;     
       }
     }  
     module.exports = foo;
     EOF
-	
+
     $ curl -u admin:admin -T /tmp/foo.esx http://localhost:8080/apps/foo/foo.esx
-   
+
     $ curl http://localhost:8080/apps/foo.html
     <h1>Hello ESX</h1>Here's some example text
-  	  
 
-An ESX file is a regular java script file. 
+
+An ESX file is a regular java script file.
 
 The NodeJS module resolution (https://nodejs.org/api/modules.html) is implemented to give access to the
 rich collection of Node modules.
@@ -97,12 +97,8 @@
 - json loader  (e.g. ```require("./dict/en.json```)
   - the json as a whole will be exported as a javascript Object
 
-## Installing Demo Application
-Currently the demo application is bundles with the engine bundle. To install the engine with the demo application, follow this steps:
-- switch to directory src/main/resources/libs/esx/demo
-- run: npm install
-- go back to package root directory
-- run mvn clean install sling:install´
+##  Demo Application
+Currently the demo application is bundles with the engine bundle.
 
 open http://localhost:8080/libs/esx/demo/content/demo.html
 
diff --git a/babel-plugin-sling-sandbox/lib/index.js b/babel-plugin-sling-sandbox/lib/index.js
new file mode 100644
index 0000000..8aca061
--- /dev/null
+++ b/babel-plugin-sling-sandbox/lib/index.js
@@ -0,0 +1,24 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+var SlingSandbox = require("./sling-sandbox-plugin");
+var Babel = require("babel-standalone");
+var template = require("babel-template");
+
+require("babel-types");
+require("babel-plugin-transform-react-jsx");
+Babel.registerPlugin("SlingSandbox". SlingSandbox);
+module.exports = Babel;
\ No newline at end of file
diff --git a/babel-plugin-sling-sandbox/lib/sling-sandbox-plugin/index.js b/babel-plugin-sling-sandbox/lib/sling-sandbox-plugin/index.js
new file mode 100644
index 0000000..e00d272
--- /dev/null
+++ b/babel-plugin-sling-sandbox/lib/sling-sandbox-plugin/index.js
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+module.exports = function (babel) {
+  const { types: t } = babel;
+ 
+  return {
+    visitor: {
+        BlockStatement(path) {
+            var threadInterrupted =  t.callExpression(
+                    t.memberExpression(
+                        t.identifier('SlingSandbox'),
+                        t.identifier('checkInterrupted'))
+                , []);
+          
+          path.unshiftContainer('body',
+            t.expressionStatement(
+                threadInterrupted
+            )                                                              );
+        }
+    }
+  };
+}
\ No newline at end of file
diff --git a/babel-plugin-sling-sandbox/package.json b/babel-plugin-sling-sandbox/package.json
new file mode 100644
index 0000000..afab249
--- /dev/null
+++ b/babel-plugin-sling-sandbox/package.json
@@ -0,0 +1,22 @@
+{
+  "name": "babel-plugin-sling-sandbox",
+  "version": "0.0.1",
+  "description": "Babel Sandbox Plugin for Apache Sling ESX scripting",
+  "main": "lib/index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "postinstall": "webpack"
+  },
+  "author": "",
+  "license": "Apache-2.0",
+  "dependencies": {
+    "babel-core": "^6.24.1",
+    "babel-loader": "^6.4.1",
+    "babel-plugin-transform-react-jsx": "^6.24.1",
+    "babel-preset-es2015": "^6.24.1",
+    "babel-standalone": "^6.24.0",
+    "babel-template": "^6.24.1",
+    "babel-types": "^6.24.1",
+    "webpack": "^2.3.3"
+  }
+}
diff --git a/babel-plugin-sling-sandbox/webpack.config.js b/babel-plugin-sling-sandbox/webpack.config.js
new file mode 100644
index 0000000..ddae5c4
--- /dev/null
+++ b/babel-plugin-sling-sandbox/webpack.config.js
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+module.exports = {
+    entry: "./lib/index.js",
+    output: {
+        filename: "../src/main/resources/internal/sling-babel.js",
+        library: "SlingBabel",
+        libraryTarget: "this"
+    },
+    module: {
+        loaders: [
+            {
+                test: /\.js$/,
+                exclude: /(node_modules|bower_components)/,
+                loader: "babel-loader",
+                query: {
+                    presets: ["es2015"]
+                }
+            }
+            
+        ]
+    }    
+}
\ No newline at end of file
diff --git a/gulpfile.js b/gulpfile.js
new file mode 100644
index 0000000..2fc9001
--- /dev/null
+++ b/gulpfile.js
@@ -0,0 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+var gulp = require("gulp");
+var gutil = require("gulp-util");
+var install = require("gulp-install");
+var webpack = require("webpack");
+var webpackConfig = require("./babel-plugin-sling-sandbox/webpack.config.js");
+
+
+gulp.task('default', function() {
+      gulp.src(["babel-plugin-sling-sandbox/package.json","src/**/package.json"])
+        .pipe(install());
+});
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..c5bdafb
--- /dev/null
+++ b/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "esx",
+  "version": "1.0.0",
+  "description": "<!-- /*  * Licensed to the Apache Software Foundation (ASF) under one or more  * contributor license agreements.  See the NOTICE file distributed with  * this work for additional information regarding copyright ownership.  * The ASF licenses this file to You under the Apache License, Version 2.0  * (the \"License\"); you may not use this file except in compliance with  * the License.  You may obtain a copy of the License at  *  *      http://www.apache.org/licenses/LICENSE-2.0  *  * Unless required by applicable law or agreed to in writing, software  * distributed under the License is distributed on an \"AS IS\" BASIS,  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  * See the License for the specific language governing permissions and  * limitations under the License.  */ --> # Apache Sling ESX Scripting Engine",
+  "main": "gulpfile.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "gulp": "^3.9.1",
+    "gulp-install": "^1.1.0",
+    "gulp-util": "^3.0.8",
+    "webpack": "^2.3.3"
+  }
+}
diff --git a/pom.xml b/pom.xml
index 566b389..1991e18 100644
--- a/pom.xml
+++ b/pom.xml
@@ -62,12 +62,44 @@
                 <groupId>org.apache.rat</groupId>
                 <artifactId>apache-rat-plugin</artifactId>
                 <configuration>
-                    <excludes>
-                        <exclude>src/main/resources/libs/esx/demo/node_modules/**</exclude>
+                    <excludes>                        
+                        <exclude>**/node_modules/**</exclude>
+                        <exclude>node</exclude>
                     </excludes>
                 </configuration>
             </plugin>
             <plugin>
+               <groupId>com.github.eirslett</groupId>
+               <artifactId>frontend-maven-plugin</artifactId>
+               <version>1.4</version>
+               <executions>
+                <execution>
+                        <id>install node and npm</id>
+                        <goals>
+                            <goal>install-node-and-npm</goal>
+                        </goals>
+                        <phase>generate-resources</phase>
+                 </execution>
+                <execution>
+                    <id>npm install</id>
+                    <goals>
+                        <goal>npm</goal>
+                    </goals>
+                </execution>                 
+                <execution>
+                    <id>gulp build</id>
+                    <goals>
+                        <goal>gulp</goal>
+                    </goals>
+                    <phase>generate-resources</phase>
+                </execution>                 
+                 </executions>
+                    <configuration>
+                        <nodeVersion>v7.8.0</nodeVersion>
+                    </configuration>               
+                
+             </plugin>            
+            <plugin>
                 <groupId>org.apache.felix</groupId>
                 <artifactId>maven-scr-plugin</artifactId>
                 <version>1.21.0</version>
@@ -163,12 +195,7 @@
             <version>2.1.8</version>
             <scope>provided</scope>
         </dependency>
-        <dependency>
-            <groupId>org.apache.sling</groupId>
-            <artifactId>org.apache.sling.commons.json</artifactId>
-            <version>2.0.19-SNAPSHOT</version>
-            <scope>provided</scope>
-        </dependency>
+
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
diff --git a/src/main/java/org/apache/sling/scripting/esx/EsxScriptEngineFactory.java b/src/main/java/org/apache/sling/scripting/esx/EsxScriptEngineFactory.java
index e588d18..c63aada 100644
--- a/src/main/java/org/apache/sling/scripting/esx/EsxScriptEngineFactory.java
+++ b/src/main/java/org/apache/sling/scripting/esx/EsxScriptEngineFactory.java
@@ -29,6 +29,7 @@
 import org.apache.felix.scr.annotations.Property;
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.Service;
+import org.apache.sling.scripting.esx.services.ScriptSandboxService;
 import org.osgi.framework.Constants;
 import org.osgi.service.component.ComponentContext;
 
@@ -49,6 +50,9 @@
     @Reference
     ScriptModuleCache moduleCache;
 
+    @Reference
+    ScriptSandboxService sandboxService;
+
     public EsxScriptEngineFactory() {
         setNames("esx", "ESX");
         setExtensions("esx", "ESX");
@@ -69,6 +73,9 @@
         return new EsxScriptEngine(this);
     }
 
+    public ScriptSandboxService getSandboxService() {
+        return sandboxService;
+    }
     /**
      * 
      * @return 
diff --git a/src/main/java/org/apache/sling/scripting/esx/Module.java b/src/main/java/org/apache/sling/scripting/esx/Module.java
index d3aeb4a..11ddd02 100644
--- a/src/main/java/org/apache/sling/scripting/esx/Module.java
+++ b/src/main/java/org/apache/sling/scripting/esx/Module.java
@@ -23,9 +23,11 @@
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
+import java.util.logging.Level;
 import javax.jcr.Node;
 import javax.jcr.RepositoryException;
 import javax.jcr.nodetype.NodeType;
+import javax.script.Invocable;
 import javax.script.ScriptException;
 import javax.script.SimpleBindings;
 import jdk.nashorn.api.scripting.JSObject;
@@ -38,8 +40,6 @@
 import org.apache.sling.api.resource.ResourceUtil;
 import org.apache.sling.api.resource.ValueMap;
 import org.apache.sling.api.scripting.SlingScriptHelper;
-import org.apache.sling.commons.json.JSONException;
-import org.apache.sling.commons.json.JSONObject;
 import org.apache.sling.scripting.esx.plugins.ConsoleLog;
 import org.apache.sling.scripting.esx.plugins.SimpleResource;
 import org.slf4j.Logger;
@@ -106,25 +106,36 @@
         put(CONTEXT_FIELD_CONSOLE, new ConsoleLog((String) get(CONTEXT_FIELD_FILENAME)));
     }
 
+    private ScriptObjectMirror decorateScript(String source)
+            throws ScriptException {
+        return decorateScript(source, true);
+    }
+
     /**
      *
      * @param source
      * @return
      * @throws ScriptException
      */
-    private ScriptObjectMirror decoreateScript(String source)
+    private ScriptObjectMirror decorateScript(String source, boolean es6)
             throws ScriptException {
-
-        String polyfill = "";
-
-        if ("polyfill".equals(get(CONTEXT_FIELD_ID))) {
-            //polyfill = "require('/libs/esx/esx_modules/polyfills/index.js')(this).bind(this)";
+        String filename = (String) get("filename");
+        if (filename.indexOf("node_modules") == -1 && es6) {
+            try {
+                source = factory.getSandboxService().compileSource(source);
+            } catch (ScriptException e) {
+                log.error("Could not transpile script", e);
+                throw new ScriptException("could not load " + get("filename"));
+            }
         }
+
+        // TODO: refactor polyfill for window, global and make require outside the wrapper as function parameter        
         source = "//@sourceURL=" + (String) get("filename") + "\n"
-                + "(function (exports, require, module, __filename,"
+                + "(function (exports, Require, module, __filename,"
                 + " __dirname, currentNode, console, properties, sling, simpleResource) { "
-                + "var window = this;"
-                + "var global = this;"
+                + "var window = (this.window == 'undefined' || this.window == null) ? this : this.window;"
+                + "var global = (global == 'undefined') ? this : global;"
+                + "function require(id) {  return Require.require(id); } require.resolve = function (id) { return Require.resolve(id, currentNode.resource, 1);  };"
                 + source
                 + "})";
 
@@ -162,7 +173,7 @@
 
         if (function == null) {
             if (moduleScript.isJsFile()) {
-                function = decoreateScript(
+                function = Module.this.decorateScript(
                         //readScript(moduleResource)//  
                         readScript(moduleResource)
                 );
@@ -170,9 +181,9 @@
 
             if (moduleScript.isJsonFile()) {
                 String jsonfile = readScript(moduleResource);
-                function = decoreateScript(
+                function = decorateScript(
                         "module.exports = " + jsonfile
-                );
+                , false);
             }
 
             if (moduleScript.isResourceFile()) {
@@ -182,21 +193,25 @@
 
                 put("children", children);
 
-                ValueMap map = moduleResource.adaptTo(ValueMap.class);
+                /*ValueMap map = moduleResource.adaptTo(ValueMap.class);
 
-                JSONObject values = new JSONObject(map);
-
-                String jsonprop = values.toString();
-
+                 Invocable invocable = (Invocable) factory.getNashornEngine();
+                 Object jsonprop = null;
+                 try {
+                 jsonprop = invocable.invokeMethod(factory.getNashornEngine().eval("JSON"), "stringify", map);
+                 } catch (NoSuchMethodException ex) {
+                 throw new ScriptException(ex);
+                 }
+                 */
                 SimpleResource simpleResource = moduleResource.adaptTo(SimpleResource.class);
                 put("simpleResource", simpleResource);
+                /*   String source = "exports.properties =  " + jsonprop + ";"
+                 + "exports.path = currentNode.resource.path;"
+                 + "exports.simpleResource = this.simpleResource;"
+                 + "exports.children = this.children;";*/
+                String source = "module.exports = this.simpleResource;";
 
-                String source = "exports.properties =  " + jsonprop + ";"
-                        + "exports.path = currentNode.resource.path;"
-                        + "exports.simpleResource = this.simpleResource;"
-                        + "exports.children = this.children;";
-
-                function = decoreateScript(source);
+                function = decorateScript(source, false);
             }
             if (!moduleScript.isResourceFile()) {
                 factory.getModuleCache().put(moduleScript.getResource().getPath(), function);
@@ -211,7 +226,7 @@
             log.debug("sourcE: ");
             source = "module.exports = \"" + source + "\";";
             log.debug(source);
-            function = decoreateScript(source);
+            function = Module.this.decorateScript(source);
             factory.getModuleCache().put(moduleScript.getResource().getPath(), function);
         }
         JSObject process = (JSObject) factory.getNashornEngine().eval("Object");
@@ -226,7 +241,9 @@
                 log.debug("module id {} resource is null", get(CONTEXT_FIELD_ID));
             }
 
-            function.call(this, get(CONTEXT_FIELD_EXPORTS), (Require) this::require, this, get(CONTEXT_FIELD_FILENAME),
+            // changed require to be generated within the wrapper
+            // TODO: need to be refactored
+            function.call(this, get(CONTEXT_FIELD_EXPORTS), this, this, get(CONTEXT_FIELD_FILENAME),
                     ((Resource) get(CONTEXT_FIELD_MODULE_RESOURCE)).getParent().getPath(), currentNode,
                     (ConsoleLog) get(CONTEXT_FIELD_CONSOLE),
                     null,
@@ -418,24 +435,20 @@
                     try {
                         String jsonData = IOUtils.toString(is);
 
-                        JSONObject json;
+                        Invocable invocable = (Invocable) factory.getNashornEngine();
+                        JSObject jsonprop = null;
                         try {
-                            json = new JSONObject(jsonData);
-                        } catch (JSONException ex) {
+                            jsonprop = (JSObject) invocable.invokeMethod(factory.getNashornEngine().eval("JSON"), "parse", jsonData);
+                        } catch (NoSuchMethodException ex) {
                             throw new ScriptException(ex);
                         }
 
-                        if (json.has("main")) {
-                            String packageModule;
-                            try {
-                                packageModule = json.getString("main");
-                            } catch (JSONException ex) {
-                                throw new ScriptException(ex);
-                            }
+                        Object main = jsonprop.getMember("main");
+                        if (main != null) {
+                            String packageModule = (String) main;
 
                             String mainpath = normalizePath(packageModule,
                                     path);
-
                             return loadAsFile(packageModule, mainpath, currentResource, loader);
                         }
 
diff --git a/src/main/java/org/apache/sling/scripting/esx/services/ScriptSandboxService.java b/src/main/java/org/apache/sling/scripting/esx/services/ScriptSandboxService.java
new file mode 100644
index 0000000..e76ad78
--- /dev/null
+++ b/src/main/java/org/apache/sling/scripting/esx/services/ScriptSandboxService.java
@@ -0,0 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sling.scripting.esx.services;
+
+import javax.script.ScriptException;
+
+/**
+ *
+ * @author senol
+ */
+public interface ScriptSandboxService {
+    public String compileSource(String source) throws ScriptException;
+}
diff --git a/src/main/java/org/apache/sling/scripting/esx/services/impl/ScriptSandboxServiceImpl.java b/src/main/java/org/apache/sling/scripting/esx/services/impl/ScriptSandboxServiceImpl.java
new file mode 100644
index 0000000..d9ea47b
--- /dev/null
+++ b/src/main/java/org/apache/sling/scripting/esx/services/impl/ScriptSandboxServiceImpl.java
@@ -0,0 +1,104 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sling.scripting.esx.services.impl;
+
+import java.io.IOException;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import javax.script.Invocable;
+import javax.script.ScriptEngine;
+import javax.script.ScriptException;
+import jdk.nashorn.api.scripting.JSObject;
+import jdk.nashorn.api.scripting.NashornScriptEngineFactory;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.StringEscapeUtils;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Property;
+import org.apache.felix.scr.annotations.Service;
+import org.apache.sling.api.SlingConstants;
+import org.apache.sling.scripting.esx.ScriptModuleCache;
+import org.apache.sling.scripting.esx.services.ScriptSandboxService;
+import org.osgi.service.component.ComponentContext;
+import org.osgi.service.event.EventHandler;
+import org.slf4j.LoggerFactory;
+
+@Component
+@Service(value = {ScriptSandboxService.class})
+@Property(name = org.osgi.service.event.EventConstants.EVENT_TOPIC,
+        value = {SlingConstants.TOPIC_RESOURCE_CHANGED, SlingConstants.TOPIC_RESOURCE_REMOVED})
+public class ScriptSandboxServiceImpl implements ScriptSandboxService {
+
+    private final org.slf4j.Logger log = LoggerFactory.getLogger(getClass());
+    private final String SLING_BABEL_SOURCE_CODE = "/resources/internal/sling-babel.js";
+
+    private String slingBabelSource = null;
+    private ScriptEngine scriptEngine;
+    private Object babelOptions = null;
+    private Object babel = null;
+
+    @Override
+    public String compileSource(String source) throws ScriptException {      
+        Invocable inv = (Invocable) scriptEngine;
+        JSObject rs;
+        try {       
+            rs = (JSObject) inv.invokeMethod(babel, "transform", source, babelOptions);
+            return rs.getMember("code").toString(); 
+        } catch (ScriptException ex) {
+            throw new ScriptException(ex);
+        } catch (NoSuchMethodException ex) {
+            throw new ScriptException(ex);
+        }
+    }
+
+    /**
+     *
+     * @param context
+     */
+    @Activate
+    protected void activate(ComponentContext context) {
+        try {
+            this.slingBabelSource = "//@sourceURL=" + getClass().getCanonicalName() + "\n load( { name : \"" + getClass().getCanonicalName() + "\", script: \""
+                    + StringEscapeUtils.escapeEcmaScript(new String(IOUtils.toByteArray(
+                                            context.getBundleContext().getBundle()
+                                            .getEntry(this.SLING_BABEL_SOURCE_CODE).openStream())))
+                    + "\"} )";
+        } catch (Exception ex) {
+           log.error("failed to load babel source", ex);
+        }
+        
+        String options = "var config = { "
+                + "    presets: [\"es2015\"], "
+                + "    compact: 'true',"
+                + "    plugins: [[\"transform-react-jsx\", { pragma : \"SlingEsx.createElement\"}]] "
+                //+ // disabled sandbox plugin for 
+                //"    \"plugins\": [\"SlingSandbox, [\"transform-react-jsx\", { \"pragma\" : \"SlingEsx.createElement\"}]] \n" +        
+                + "    }"; 
+        NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
+        this.scriptEngine = factory.getScriptEngine();
+        try {
+            log.info("trying to load babel into the system");
+            this.scriptEngine.eval(options);
+            this.babelOptions = this.scriptEngine.get("config");
+            scriptEngine.eval(slingBabelSource);
+            this.babel = this.scriptEngine.get("SlingBabel");
+            log.info("Babel loaded");
+        } catch (ScriptException ex) {
+            log.error("coudlnt load babel options", ex);
+        }
+    }
+}
diff --git a/src/main/resources/internal/sling-babel.js b/src/main/resources/internal/sling-babel.js
new file mode 100644
index 0000000..1cdc032
--- /dev/null
+++ b/src/main/resources/internal/sling-babel.js
@@ -0,0 +1,92949 @@
+this["SlingBabel"] =
+/******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+/******/
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+/******/
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId])
+/******/ 			return installedModules[moduleId].exports;
+/******/
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			i: moduleId,
+/******/ 			l: false,
+/******/ 			exports: {}
+/******/ 		};
+/******/
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+/******/
+/******/ 		// Flag the module as loaded
+/******/ 		module.l = true;
+/******/
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+/******/
+/******/
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+/******/
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+/******/
+/******/ 	// identity function for calling harmony imports with the correct context
+/******/ 	__webpack_require__.i = function(value) { return value; };
+/******/
+/******/ 	// define getter function for harmony exports
+/******/ 	__webpack_require__.d = function(exports, name, getter) {
+/******/ 		if(!__webpack_require__.o(exports, name)) {
+/******/ 			Object.defineProperty(exports, name, {
+/******/ 				configurable: false,
+/******/ 				enumerable: true,
+/******/ 				get: getter
+/******/ 			});
+/******/ 		}
+/******/ 	};
+/******/
+/******/ 	// getDefaultExport function for compatibility with non-harmony modules
+/******/ 	__webpack_require__.n = function(module) {
+/******/ 		var getter = module && module.__esModule ?
+/******/ 			function getDefault() { return module['default']; } :
+/******/ 			function getModuleExports() { return module; };
+/******/ 		__webpack_require__.d(getter, 'a', getter);
+/******/ 		return getter;
+/******/ 	};
+/******/
+/******/ 	// Object.prototype.hasOwnProperty.call
+/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
+/******/
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+/******/
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(__webpack_require__.s = 145);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+exports.createTypeAnnotationBasedOnTypeof = exports.removeTypeDuplicates = exports.createUnionTypeAnnotation = exports.valueToNode = exports.toBlock = exports.toExpression = exports.toStatement = exports.toBindingIdentifierName = exports.toIdentifier = exports.toKeyAlias = exports.toSequenceExpression = exports.toComputedKey = exports.isNodesEquivalent = exports.isImmutable = exports.isScope = exports.isSpecifierDefault = exports.isVar = exports.isBlockScoped = exports.isLet = exports.isValidIdentifier = exports.isReferenced = exports.isBinding = exports.getOuterBindingIdentifiers = exports.getBindingIdentifiers = exports.TYPES = exports.react = exports.DEPRECATED_KEYS = exports.BUILDER_KEYS = exports.NODE_FIELDS = exports.ALIAS_KEYS = exports.VISITOR_KEYS = exports.NOT_LOCAL_BINDING = exports.BLOCK_SCOPED_SYMBOL = exports.INHERIT_KEYS = exports.UNARY_OPERATORS = exports.STRING_UNARY_OPERATORS = exports.NUMBER_UNARY_OPERATORS = exports.BOOLEAN_UNARY_OPERATORS = exports.BINARY_OPERATORS = exports.NUMBER_BINARY_OPERATORS = exports.BOOLEAN_BINARY_OPERATORS = exports.COMPARISON_BINARY_OPERATORS = exports.EQUALITY_BINARY_OPERATORS = exports.BOOLEAN_NUMBER_BINARY_OPERATORS = exports.UPDATE_OPERATORS = exports.LOGICAL_OPERATORS = exports.COMMENT_KEYS = exports.FOR_INIT_KEYS = exports.FLATTENABLE_KEYS = exports.STATEMENT_OR_BLOCK_KEYS = undefined;
+
+var _getOwnPropertySymbols = __webpack_require__(148);
+
+var _getOwnPropertySymbols2 = _interopRequireDefault(_getOwnPropertySymbols);
+
+var _getIterator2 = __webpack_require__(1);
+
+var _getIterator3 = _interopRequireDefault(_getIterator2);
+
+var _keys = __webpack_require__(33);
+
+var _keys2 = _interopRequireDefault(_keys);
+
+var _stringify = __webpack_require__(32);
+
+var _stringify2 = _interopRequireDefault(_stringify);
+
+var _constants = __webpack_require__(58);
+
+Object.defineProperty(exports, "STATEMENT_OR_BLOCK_KEYS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.STATEMENT_OR_BLOCK_KEYS;
+  }
+});
+Object.defineProperty(exports, "FLATTENABLE_KEYS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.FLATTENABLE_KEYS;
+  }
+});
+Object.defineProperty(exports, "FOR_INIT_KEYS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.FOR_INIT_KEYS;
+  }
+});
+Object.defineProperty(exports, "COMMENT_KEYS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.COMMENT_KEYS;
+  }
+});
+Object.defineProperty(exports, "LOGICAL_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.LOGICAL_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "UPDATE_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.UPDATE_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "BOOLEAN_NUMBER_BINARY_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.BOOLEAN_NUMBER_BINARY_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "EQUALITY_BINARY_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.EQUALITY_BINARY_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "COMPARISON_BINARY_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.COMPARISON_BINARY_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "BOOLEAN_BINARY_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.BOOLEAN_BINARY_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "NUMBER_BINARY_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.NUMBER_BINARY_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "BINARY_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.BINARY_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "BOOLEAN_UNARY_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.BOOLEAN_UNARY_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "NUMBER_UNARY_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.NUMBER_UNARY_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "STRING_UNARY_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.STRING_UNARY_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "UNARY_OPERATORS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.UNARY_OPERATORS;
+  }
+});
+Object.defineProperty(exports, "INHERIT_KEYS", {
+  enumerable: true,
+  get: function get() {
+    return _constants.INHERIT_KEYS;
+  }
+});
+Object.defineProperty(exports, "BLOCK_SCOPED_SYMBOL", {
+  enumerable: true,
+  get: function get() {
+    return _constants.BLOCK_SCOPED_SYMBOL;
+  }
+});
+Object.defineProperty(exports, "NOT_LOCAL_BINDING", {
+  enumerable: true,
+  get: function get() {
+    return _constants.NOT_LOCAL_BINDING;
+  }
+});
+exports.is = is;
+exports.isType = isType;
+exports.validate = validate;
+exports.shallowEqual = shallowEqual;
+exports.appendToMemberExpression = appendToMemberExpression;
+exports.prependToMemberExpression = prependToMemberExpression;
+exports.ensureBlock = ensureBlock;
+exports.clone = clone;
+exports.cloneWithoutLoc = cloneWithoutLoc;
+exports.cloneDeep = cloneDeep;
+exports.buildMatchMemberExpression = buildMatchMemberExpression;
+exports.removeComments = removeComments;
+exports.inheritsComments = inheritsComments;
+exports.inheritTrailingComments = inheritTrailingComments;
+exports.inheritLeadingComments = inheritLeadingComments;
+exports.inheritInnerComments = inheritInnerComments;
+exports.inherits = inherits;
+exports.assertNode = assertNode;
+exports.isNode = isNode;
+exports.traverseFast = traverseFast;
+exports.removeProperties = removeProperties;
+exports.removePropertiesDeep = removePropertiesDeep;
+
+var _retrievers = __webpack_require__(97);
+
+Object.defineProperty(exports, "getBindingIdentifiers", {
+  enumerable: true,
+  get: function get() {
+    return _retrievers.getBindingIdentifiers;
+  }
+});
+Object.defineProperty(exports, "getOuterBindingIdentifiers", {
+  enumerable: true,
+  get: function get() {
+    return _retrievers.getOuterBindingIdentifiers;
+  }
+});
+
+var _validators = __webpack_require__(180);
+
+Object.defineProperty(exports, "isBinding", {
+  enumerable: true,
+  get: function get() {
+    return _validators.isBinding;
+  }
+});
+Object.defineProperty(exports, "isReferenced", {
+  enumerable: true,
+  get: function get() {
+    return _validators.isReferenced;
+  }
+});
+Object.defineProperty(exports, "isValidIdentifier", {
+  enumerable: true,
+  get: function get() {
+    return _validators.isValidIdentifier;
+  }
+});
+Object.defineProperty(exports, "isLet", {
+  enumerable: true,
+  get: function get() {
+    return _validators.isLet;
+  }
+});
+Object.defineProperty(exports, "isBlockScoped", {
+  enumerable: true,
+  get: function get() {
+    return _validators.isBlockScoped;
+  }
+});
+Object.defineProperty(exports, "isVar", {
+  enumerable: true,
+  get: function get() {
+    return _validators.isVar;
+  }
+});
+Object.defineProperty(exports, "isSpecifierDefault", {
+  enumerable: true,
+  get: function get() {
+    return _validators.isSpecifierDefault;
+  }
+});
+Object.defineProperty(exports, "isScope", {
+  enumerable: true,
+  get: function get() {
+    return _validators.isScope;
+  }
+});
+Object.defineProperty(exports, "isImmutable", {
+  enumerable: true,
+  get: function get() {
+    return _validators.isImmutable;
+  }
+});
+Object.defineProperty(exports, "isNodesEquivalent", {
+  enumerable: true,
+  get: function get() {
+    return _validators.isNodesEquivalent;
+  }
+});
+
+var _converters = __webpack_require__(170);
+
+Object.defineProperty(exports, "toComputedKey", {
+  enumerable: true,
+  get: function get() {
+    return _converters.toComputedKey;
+  }
+});
+Object.defineProperty(exports, "toSequenceExpression", {
+  enumerable: true,
+  get: function get() {
+    return _converters.toSequenceExpression;
+  }
+});
+Object.defineProperty(exports, "toKeyAlias", {
+  enumerable: true,
+  get: function get() {
+    return _converters.toKeyAlias;
+  }
+});
+Object.defineProperty(exports, "toIdentifier", {
+  enumerable: true,
+  get: function get() {
+    return _converters.toIdentifier;
+  }
+});
+Object.defineProperty(exports, "toBindingIdentifierName", {
+  enumerable: true,
+  get: function get() {
+    return _converters.toBindingIdentifierName;
+  }
+});
+Object.defineProperty(exports, "toStatement", {
+  enumerable: true,
+  get: function get() {
+    return _converters.toStatement;
+  }
+});
+Object.defineProperty(exports, "toExpression", {
+  enumerable: true,
+  get: function get() {
+    return _converters.toExpression;
+  }
+});
+Object.defineProperty(exports, "toBlock", {
+  enumerable: true,
+  get: function get() {
+    return _converters.toBlock;
+  }
+});
+Object.defineProperty(exports, "valueToNode", {
+  enumerable: true,
+  get: function get() {
+    return _converters.valueToNode;
+  }
+});
+
+var _flow = __webpack_require__(178);
+
+Object.defineProperty(exports, "createUnionTypeAnnotation", {
+  enumerable: true,
+  get: function get() {
+    return _flow.createUnionTypeAnnotation;
+  }
+});
+Object.defineProperty(exports, "removeTypeDuplicates", {
+  enumerable: true,
+  get: function get() {
+    return _flow.removeTypeDuplicates;
+  }
+});
+Object.defineProperty(exports, "createTypeAnnotationBasedOnTypeof", {
+  enumerable: true,
+  get: function get() {
+    return _flow.createTypeAnnotationBasedOnTypeof;
+  }
+});
+
+var _toFastProperties = __webpack_require__(352);
+
+var _toFastProperties2 = _interopRequireDefault(_toFastProperties);
+
+var _clone = __webpack_require__(130);
+
+var _clone2 = _interopRequireDefault(_clone);
+
+var _uniq = __webpack_require__(347);
+
+var _uniq2 = _interopRequireDefault(_uniq);
+
+__webpack_require__(175);
+
+var _definitions = __webpack_require__(8);
+
+var _react2 = __webpack_require__(179);
+
+var _react = _interopRequireWildcard(_react2);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var t = exports;
+
+function registerType(type) {
+  var is = t["is" + type];
+  if (!is) {
+    is = t["is" + type] = function (node, opts) {
+      return t.is(type, node, opts);
+    };
+  }
+
+  t["assert" + type] = function (node, opts) {
+    opts = opts || {};
+    if (!is(node, opts)) {
+      throw new Error("Expected type " + (0, _stringify2.default)(type) + " with option " + (0, _stringify2.default)(opts));
+    }
+  };
+}
+
+exports.VISITOR_KEYS = _definitions.VISITOR_KEYS;
+exports.ALIAS_KEYS = _definitions.ALIAS_KEYS;
+exports.NODE_FIELDS = _definitions.NODE_FIELDS;
+exports.BUILDER_KEYS = _definitions.BUILDER_KEYS;
+exports.DEPRECATED_KEYS = _definitions.DEPRECATED_KEYS;
+exports.react = _react;
+
+
+for (var type in t.VISITOR_KEYS) {
+  registerType(type);
+}
+
+t.FLIPPED_ALIAS_KEYS = {};
+
+(0, _keys2.default)(t.ALIAS_KEYS).forEach(function (type) {
+  t.ALIAS_KEYS[type].forEach(function (alias) {
+    var types = t.FLIPPED_ALIAS_KEYS[alias] = t.FLIPPED_ALIAS_KEYS[alias] || [];
+    types.push(type);
+  });
+});
+
+(0, _keys2.default)(t.FLIPPED_ALIAS_KEYS).forEach(function (type) {
+  t[type.toUpperCase() + "_TYPES"] = t.FLIPPED_ALIAS_KEYS[type];
+  registerType(type);
+});
+
+var TYPES = exports.TYPES = (0, _keys2.default)(t.VISITOR_KEYS).concat((0, _keys2.default)(t.FLIPPED_ALIAS_KEYS)).concat((0, _keys2.default)(t.DEPRECATED_KEYS));
+
+function is(type, node, opts) {
+  if (!node) return false;
+
+  var matches = isType(node.type, type);
+  if (!matches) return false;
+
+  if (typeof opts === "undefined") {
+    return true;
+  } else {
+    return t.shallowEqual(node, opts);
+  }
+}
+
+function isType(nodeType, targetType) {
+  if (nodeType === targetType) return true;
+
+  if (t.ALIAS_KEYS[targetType]) return false;
+
+  var aliases = t.FLIPPED_ALIAS_KEYS[targetType];
+  if (aliases) {
+    if (aliases[0] === nodeType) return true;
+
+    for (var _iterator = aliases, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
+      var _ref;
+
+      if (_isArray) {
+        if (_i >= _iterator.length) break;
+        _ref = _iterator[_i++];
+      } else {
+        _i = _iterator.next();
+        if (_i.done) break;
+        _ref = _i.value;
+      }
+
+      var alias = _ref;
+
+      if (nodeType === alias) return true;
+    }
+  }
+
+  return false;
+}
+
+(0, _keys2.default)(t.BUILDER_KEYS).forEach(function (type) {
+  var keys = t.BUILDER_KEYS[type];
+
+  function builder() {
+    if (arguments.length > keys.length) {
+      throw new Error("t." + type + ": Too many arguments passed. Received " + arguments.length + " but can receive " + ("no more than " + keys.length));
+    }
+
+    var node = {};
+    node.type = type;
+
+    var i = 0;
+
+    for (var _iterator2 = keys, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
+      var _ref2;
+
+      if (_isArray2) {
+        if (_i2 >= _iterator2.length) break;
+        _ref2 = _iterator2[_i2++];
+      } else {
+        _i2 = _iterator2.next();
+        if (_i2.done) break;
+        _ref2 = _i2.value;
+      }
+
+      var _key = _ref2;
+
+      var field = t.NODE_FIELDS[type][_key];
+
+      var arg = arguments[i++];
+      if (arg === undefined) arg = (0, _clone2.default)(field.default);
+
+      node[_key] = arg;
+    }
+
+    for (var key in node) {
+      validate(node, key, node[key]);
+    }
+
+    return node;
+  }
+
+  t[type] = builder;
+  t[type[0].toLowerCase() + type.slice(1)] = builder;
+});
+
+var _loop = function _loop(_type) {
+  var newType = t.DEPRECATED_KEYS[_type];
+
+  function proxy(fn) {
+    return function () {
+      console.trace("The node type " + _type + " has been renamed to " + newType);
+      return fn.apply(this, arguments);
+    };
+  }
+
+  t[_type] = t[_type[0].toLowerCase() + _type.slice(1)] = proxy(t[newType]);
+  t["is" + _type] = proxy(t["is" + newType]);
+  t["assert" + _type] = proxy(t["assert" + newType]);
+};
+
+for (var _type in t.DEPRECATED_KEYS) {
+  _loop(_type);
+}
+
+function validate(node, key, val) {
+  if (!node) return;
+
+  var fields = t.NODE_FIELDS[node.type];
+  if (!fields) return;
+
+  var field = fields[key];
+  if (!field || !field.validate) return;
+  if (field.optional && val == null) return;
+
+  field.validate(node, key, val);
+}
+
+function shallowEqual(actual, expected) {
+  var keys = (0, _keys2.default)(expected);
+
+  for (var _iterator3 = keys, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
+    var _ref3;
+
+    if (_isArray3) {
+      if (_i3 >= _iterator3.length) break;
+      _ref3 = _iterator3[_i3++];
+    } else {
+      _i3 = _iterator3.next();
+      if (_i3.done) break;
+      _ref3 = _i3.value;
+    }
+
+    var key = _ref3;
+
+    if (actual[key] !== expected[key]) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+function appendToMemberExpression(member, append, computed) {
+  member.object = t.memberExpression(member.object, member.property, member.computed);
+  member.property = append;
+  member.computed = !!computed;
+  return member;
+}
+
+function prependToMemberExpression(member, prepend) {
+  member.object = t.memberExpression(prepend, member.object);
+  return member;
+}
+
+function ensureBlock(node) {
+  var key = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "body";
+
+  return node[key] = t.toBlock(node[key], node);
+}
+
+function clone(node) {
+  if (!node) return node;
+  var newNode = {};
+  for (var key in node) {
+    if (key[0] === "_") continue;
+    newNode[key] = node[key];
+  }
+  return newNode;
+}
+
+function cloneWithoutLoc(node) {
+  var newNode = clone(node);
+  delete newNode.loc;
+  return newNode;
+}
+
+function cloneDeep(node) {
+  if (!node) return node;
+  var newNode = {};
+
+  for (var key in node) {
+    if (key[0] === "_") continue;
+
+    var val = node[key];
+
+    if (val) {
+      if (val.type) {
+        val = t.cloneDeep(val);
+      } else if (Array.isArray(val)) {
+        val = val.map(t.cloneDeep);
+      }
+    }
+
+    newNode[key] = val;
+  }
+
+  return newNode;
+}
+
+function buildMatchMemberExpression(match, allowPartial) {
+  var parts = match.split(".");
+
+  return function (member) {
+    if (!t.isMemberExpression(member)) return false;
+
+    var search = [member];
+    var i = 0;
+
+    while (search.length) {
+      var node = search.shift();
+
+      if (allowPartial && i === parts.length) {
+        return true;
+      }
+
+      if (t.isIdentifier(node)) {
+        if (parts[i] !== node.name) return false;
+      } else if (t.isStringLiteral(node)) {
+        if (parts[i] !== node.value) return false;
+      } else if (t.isMemberExpression(node)) {
+        if (node.computed && !t.isStringLiteral(node.property)) {
+          return false;
+        } else {
+          search.push(node.object);
+          search.push(node.property);
+          continue;
+        }
+      } else {
+        return false;
+      }
+
+      if (++i > parts.length) {
+        return false;
+      }
+    }
+
+    return true;
+  };
+}
+
+function removeComments(node) {
+  for (var _iterator4 = t.COMMENT_KEYS, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
+    var _ref4;
+
+    if (_isArray4) {
+      if (_i4 >= _iterator4.length) break;
+      _ref4 = _iterator4[_i4++];
+    } else {
+      _i4 = _iterator4.next();
+      if (_i4.done) break;
+      _ref4 = _i4.value;
+    }
+
+    var key = _ref4;
+
+    delete node[key];
+  }
+  return node;
+}
+
+function inheritsComments(child, parent) {
+  inheritTrailingComments(child, parent);
+  inheritLeadingComments(child, parent);
+  inheritInnerComments(child, parent);
+  return child;
+}
+
+function inheritTrailingComments(child, parent) {
+  _inheritComments("trailingComments", child, parent);
+}
+
+function inheritLeadingComments(child, parent) {
+  _inheritComments("leadingComments", child, parent);
+}
+
+function inheritInnerComments(child, parent) {
+  _inheritComments("innerComments", child, parent);
+}
+
+function _inheritComments(key, child, parent) {
+  if (child && parent) {
+    child[key] = (0, _uniq2.default)([].concat(child[key], parent[key]).filter(Boolean));
+  }
+}
+
+function inherits(child, parent) {
+  if (!child || !parent) return child;
+
+  for (var _iterator5 = t.INHERIT_KEYS.optional, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
+    var _ref5;
+
+    if (_isArray5) {
+      if (_i5 >= _iterator5.length) break;
+      _ref5 = _iterator5[_i5++];
+    } else {
+      _i5 = _iterator5.next();
+      if (_i5.done) break;
+      _ref5 = _i5.value;
+    }
+
+    var _key2 = _ref5;
+
+    if (child[_key2] == null) {
+      child[_key2] = parent[_key2];
+    }
+  }
+
+  for (var key in parent) {
+    if (key[0] === "_") child[key] = parent[key];
+  }
+
+  for (var _iterator6 = t.INHERIT_KEYS.force, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : (0, _getIterator3.default)(_iterator6);;) {
+    var _ref6;
+
+    if (_isArray6) {
+      if (_i6 >= _iterator6.length) break;
+      _ref6 = _iterator6[_i6++];
+    } else {
+      _i6 = _iterator6.next();
+      if (_i6.done) break;
+      _ref6 = _i6.value;
+    }
+
+    var _key3 = _ref6;
+
+    child[_key3] = parent[_key3];
+  }
+
+  t.inheritsComments(child, parent);
+
+  return child;
+}
+
+function assertNode(node) {
+  if (!isNode(node)) {
+    throw new TypeError("Not a valid node " + (node && node.type));
+  }
+}
+
+function isNode(node) {
+  return !!(node && _definitions.VISITOR_KEYS[node.type]);
+}
+
+(0, _toFastProperties2.default)(t);
+(0, _toFastProperties2.default)(t.VISITOR_KEYS);
+
+function traverseFast(node, enter, opts) {
+  if (!node) return;
+
+  var keys = t.VISITOR_KEYS[node.type];
+  if (!keys) return;
+
+  opts = opts || {};
+  enter(node, opts);
+
+  for (var _iterator7 = keys, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : (0, _getIterator3.default)(_iterator7);;) {
+    var _ref7;
+
+    if (_isArray7) {
+      if (_i7 >= _iterator7.length) break;
+      _ref7 = _iterator7[_i7++];
+    } else {
+      _i7 = _iterator7.next();
+      if (_i7.done) break;
+      _ref7 = _i7.value;
+    }
+
+    var key = _ref7;
+
+    var subNode = node[key];
+
+    if (Array.isArray(subNode)) {
+      for (var _iterator8 = subNode, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : (0, _getIterator3.default)(_iterator8);;) {
+        var _ref8;
+
+        if (_isArray8) {
+          if (_i8 >= _iterator8.length) break;
+          _ref8 = _iterator8[_i8++];
+        } else {
+          _i8 = _iterator8.next();
+          if (_i8.done) break;
+          _ref8 = _i8.value;
+        }
+
+        var _node = _ref8;
+
+        traverseFast(_node, enter, opts);
+      }
+    } else {
+      traverseFast(subNode, enter, opts);
+    }
+  }
+}
+
+var CLEAR_KEYS = ["tokens", "start", "end", "loc", "raw", "rawValue"];
+
+var CLEAR_KEYS_PLUS_COMMENTS = t.COMMENT_KEYS.concat(["comments"]).concat(CLEAR_KEYS);
+
+function removeProperties(node, opts) {
+  opts = opts || {};
+  var map = opts.preserveComments ? CLEAR_KEYS : CLEAR_KEYS_PLUS_COMMENTS;
+  for (var _iterator9 = map, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : (0, _getIterator3.default)(_iterator9);;) {
+    var _ref9;
+
+    if (_isArray9) {
+      if (_i9 >= _iterator9.length) break;
+      _ref9 = _iterator9[_i9++];
+    } else {
+      _i9 = _iterator9.next();
+      if (_i9.done) break;
+      _ref9 = _i9.value;
+    }
+
+    var _key4 = _ref9;
+
+    if (node[_key4] != null) node[_key4] = undefined;
+  }
+
+  for (var key in node) {
+    if (key[0] === "_" && node[key] != null) node[key] = undefined;
+  }
+
+  var syms = (0, _getOwnPropertySymbols2.default)(node);
+  for (var _iterator10 = syms, _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : (0, _getIterator3.default)(_iterator10);;) {
+    var _ref10;
+
+    if (_isArray10) {
+      if (_i10 >= _iterator10.length) break;
+      _ref10 = _iterator10[_i10++];
+    } else {
+      _i10 = _iterator10.next();
+      if (_i10.done) break;
+      _ref10 = _i10.value;
+    }
+
+    var sym = _ref10;
+
+    node[sym] = null;
+  }
+}
+
+function removePropertiesDeep(tree, opts) {
+  traverseFast(tree, removeProperties, opts);
+  return tree;
+}
+
+/***/ }),
+/* 1 */
+/***/ (function(module, exports, __webpack_require__) {
+
+module.exports = { "default": __webpack_require__(184), __esModule: true };
+
+/***/ }),
+/* 2 */
+/***/ (function(module, exports) {
+
+var core = module.exports = {version: '2.4.0'};
+if(typeof __e == 'number')__e = core; // eslint-disable-line no-undef
+
+/***/ }),
+/* 3 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var store      = __webpack_require__(70)('wks')
+  , uid        = __webpack_require__(43)
+  , Symbol     = __webpack_require__(4).Symbol
+  , USE_SYMBOL = typeof Symbol == 'function';
+
+var $exports = module.exports = function(name){
+  return store[name] || (store[name] =
+    USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));
+};
+
+$exports.store = store;
+
+/***/ }),
+/* 4 */
+/***/ (function(module, exports) {
+
+// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
+var global = module.exports = typeof window != 'undefined' && window.Math == Math
+  ? window : typeof self != 'undefined' && self.Math == Math ? self : Function('return this')();
+if(typeof __g == 'number')__g = global; // eslint-disable-line no-undef
+
+/***/ }),
+/* 5 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var freeGlobal = __webpack_require__(123);
+
+/** Detect free variable `self`. */
+var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
+
+/** Used as a reference to the global object. */
+var root = freeGlobal || freeSelf || Function('return this')();
+
+module.exports = root;
+
+
+/***/ }),
+/* 6 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// Thank's IE8 for his funny defineProperty
+module.exports = !__webpack_require__(18)(function(){
+  return Object.defineProperty({}, 'a', {get: function(){ return 7; }}).a != 7;
+});
+
+/***/ }),
+/* 7 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var anObject       = __webpack_require__(9)
+  , IE8_DOM_DEFINE = __webpack_require__(102)
+  , toPrimitive    = __webpack_require__(73)
+  , dP             = Object.defineProperty;
+
+exports.f = __webpack_require__(6) ? Object.defineProperty : function defineProperty(O, P, Attributes){
+  anObject(O);
+  P = toPrimitive(P, true);
+  anObject(Attributes);
+  if(IE8_DOM_DEFINE)try {
+    return dP(O, P, Attributes);
+  } catch(e){ /* empty */ }
+  if('get' in Attributes || 'set' in Attributes)throw TypeError('Accessors not supported!');
+  if('value' in Attributes)O[P] = Attributes.value;
+  return O;
+};
+
+/***/ }),
+/* 8 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+exports.DEPRECATED_KEYS = exports.BUILDER_KEYS = exports.NODE_FIELDS = exports.ALIAS_KEYS = exports.VISITOR_KEYS = undefined;
+
+var _getIterator2 = __webpack_require__(1);
+
+var _getIterator3 = _interopRequireDefault(_getIterator2);
+
+var _stringify = __webpack_require__(32);
+
+var _stringify2 = _interopRequireDefault(_stringify);
+
+var _typeof2 = __webpack_require__(26);
+
+var _typeof3 = _interopRequireDefault(_typeof2);
+
+exports.assertEach = assertEach;
+exports.assertOneOf = assertOneOf;
+exports.assertNodeType = assertNodeType;
+exports.assertNodeOrValueType = assertNodeOrValueType;
+exports.assertValueType = assertValueType;
+exports.chain = chain;
+exports.default = defineType;
+
+var _index = __webpack_require__(0);
+
+var t = _interopRequireWildcard(_index);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var VISITOR_KEYS = exports.VISITOR_KEYS = {};
+var ALIAS_KEYS = exports.ALIAS_KEYS = {};
+var NODE_FIELDS = exports.NODE_FIELDS = {};
+var BUILDER_KEYS = exports.BUILDER_KEYS = {};
+var DEPRECATED_KEYS = exports.DEPRECATED_KEYS = {};
+
+function getType(val) {
+  if (Array.isArray(val)) {
+    return "array";
+  } else if (val === null) {
+    return "null";
+  } else if (val === undefined) {
+    return "undefined";
+  } else {
+    return typeof val === "undefined" ? "undefined" : (0, _typeof3.default)(val);
+  }
+}
+
+function assertEach(callback) {
+  function validator(node, key, val) {
+    if (!Array.isArray(val)) return;
+
+    for (var i = 0; i < val.length; i++) {
+      callback(node, key + "[" + i + "]", val[i]);
+    }
+  }
+  validator.each = callback;
+  return validator;
+}
+
+function assertOneOf() {
+  for (var _len = arguments.length, vals = Array(_len), _key = 0; _key < _len; _key++) {
+    vals[_key] = arguments[_key];
+  }
+
+  function validate(node, key, val) {
+    if (vals.indexOf(val) < 0) {
+      throw new TypeError("Property " + key + " expected value to be one of " + (0, _stringify2.default)(vals) + " but got " + (0, _stringify2.default)(val));
+    }
+  }
+
+  validate.oneOf = vals;
+
+  return validate;
+}
+
+function assertNodeType() {
+  for (var _len2 = arguments.length, types = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+    types[_key2] = arguments[_key2];
+  }
+
+  function validate(node, key, val) {
+    var valid = false;
+
+    for (var _iterator = types, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
+      var _ref;
+
+      if (_isArray) {
+        if (_i >= _iterator.length) break;
+        _ref = _iterator[_i++];
+      } else {
+        _i = _iterator.next();
+        if (_i.done) break;
+        _ref = _i.value;
+      }
+
+      var type = _ref;
+
+      if (t.is(type, val)) {
+        valid = true;
+        break;
+      }
+    }
+
+    if (!valid) {
+      throw new TypeError("Property " + key + " of " + node.type + " expected node to be of a type " + (0, _stringify2.default)(types) + " " + ("but instead got " + (0, _stringify2.default)(val && val.type)));
+    }
+  }
+
+  validate.oneOfNodeTypes = types;
+
+  return validate;
+}
+
+function assertNodeOrValueType() {
+  for (var _len3 = arguments.length, types = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+    types[_key3] = arguments[_key3];
+  }
+
+  function validate(node, key, val) {
+    var valid = false;
+
+    for (var _iterator2 = types, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
+      var _ref2;
+
+      if (_isArray2) {
+        if (_i2 >= _iterator2.length) break;
+        _ref2 = _iterator2[_i2++];
+      } else {
+        _i2 = _iterator2.next();
+        if (_i2.done) break;
+        _ref2 = _i2.value;
+      }
+
+      var type = _ref2;
+
+      if (getType(val) === type || t.is(type, val)) {
+        valid = true;
+        break;
+      }
+    }
+
+    if (!valid) {
+      throw new TypeError("Property " + key + " of " + node.type + " expected node to be of a type " + (0, _stringify2.default)(types) + " " + ("but instead got " + (0, _stringify2.default)(val && val.type)));
+    }
+  }
+
+  validate.oneOfNodeOrValueTypes = types;
+
+  return validate;
+}
+
+function assertValueType(type) {
+  function validate(node, key, val) {
+    var valid = getType(val) === type;
+
+    if (!valid) {
+      throw new TypeError("Property " + key + " expected type of " + type + " but got " + getType(val));
+    }
+  }
+
+  validate.type = type;
+
+  return validate;
+}
+
+function chain() {
+  for (var _len4 = arguments.length, fns = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+    fns[_key4] = arguments[_key4];
+  }
+
+  function validate() {
+    for (var _iterator3 = fns, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
+      var _ref3;
+
+      if (_isArray3) {
+        if (_i3 >= _iterator3.length) break;
+        _ref3 = _iterator3[_i3++];
+      } else {
+        _i3 = _iterator3.next();
+        if (_i3.done) break;
+        _ref3 = _i3.value;
+      }
+
+      var fn = _ref3;
+
+      fn.apply(undefined, arguments);
+    }
+  }
+  validate.chainOf = fns;
+  return validate;
+}
+
+function defineType(type) {
+  var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+  var inherits = opts.inherits && store[opts.inherits] || {};
+
+  opts.fields = opts.fields || inherits.fields || {};
+  opts.visitor = opts.visitor || inherits.visitor || [];
+  opts.aliases = opts.aliases || inherits.aliases || [];
+  opts.builder = opts.builder || inherits.builder || opts.visitor || [];
+
+  if (opts.deprecatedAlias) {
+    DEPRECATED_KEYS[opts.deprecatedAlias] = type;
+  }
+
+  for (var _iterator4 = opts.visitor.concat(opts.builder), _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
+    var _ref4;
+
+    if (_isArray4) {
+      if (_i4 >= _iterator4.length) break;
+      _ref4 = _iterator4[_i4++];
+    } else {
+      _i4 = _iterator4.next();
+      if (_i4.done) break;
+      _ref4 = _i4.value;
+    }
+
+    var _key5 = _ref4;
+
+    opts.fields[_key5] = opts.fields[_key5] || {};
+  }
+
+  for (var key in opts.fields) {
+    var field = opts.fields[key];
+
+    if (opts.builder.indexOf(key) === -1) {
+      field.optional = true;
+    }
+    if (field.default === undefined) {
+      field.default = null;
+    } else if (!field.validate) {
+      field.validate = assertValueType(getType(field.default));
+    }
+  }
+
+  VISITOR_KEYS[type] = opts.visitor;
+  BUILDER_KEYS[type] = opts.builder;
+  NODE_FIELDS[type] = opts.fields;
+  ALIAS_KEYS[type] = opts.aliases;
+
+  store[type] = opts;
+}
+
+var store = {};
+
+/***/ }),
+/* 9 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var isObject = __webpack_require__(12);
+module.exports = function(it){
+  if(!isObject(it))throw TypeError(it + ' is not an object!');
+  return it;
+};
+
+/***/ }),
+/* 10 */
+/***/ (function(module, exports) {
+
+var hasOwnProperty = {}.hasOwnProperty;
+module.exports = function(it, key){
+  return hasOwnProperty.call(it, key);
+};
+
+/***/ }),
+/* 11 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var dP         = __webpack_require__(7)
+  , createDesc = __webpack_require__(40);
+module.exports = __webpack_require__(6) ? function(object, key, value){
+  return dP.f(object, key, createDesc(1, value));
+} : function(object, key, value){
+  object[key] = value;
+  return object;
+};
+
+/***/ }),
+/* 12 */
+/***/ (function(module, exports) {
+
+module.exports = function(it){
+  return typeof it === 'object' ? it !== null : typeof it === 'function';
+};
+
+/***/ }),
+/* 13 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var Symbol = __webpack_require__(46),
+    getRawTag = __webpack_require__(289),
+    objectToString = __webpack_require__(318);
+
+/** `Object#toString` result references. */
+var nullTag = '[object Null]',
+    undefinedTag = '[object Undefined]';
+
+/** Built-in value references. */
+var symToStringTag = Symbol ? Symbol.toStringTag : undefined;
+
+/**
+ * The base implementation of `getTag` without fallbacks for buggy environments.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @returns {string} Returns the `toStringTag`.
+ */
+function baseGetTag(value) {
+  if (value == null) {
+    return value === undefined ? undefinedTag : nullTag;
+  }
+  return (symToStringTag && symToStringTag in Object(value))
+    ? getRawTag(value)
+    : objectToString(value);
+}
+
+module.exports = baseGetTag;
+
+
+/***/ }),
+/* 14 */
+/***/ (function(module, exports) {
+
+/**
+ * Checks if `value` is classified as an `Array` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an array, else `false`.
+ * @example
+ *
+ * _.isArray([1, 2, 3]);
+ * // => true
+ *
+ * _.isArray(document.body.children);
+ * // => false
+ *
+ * _.isArray('abc');
+ * // => false
+ *
+ * _.isArray(_.noop);
+ * // => false
+ */
+var isArray = Array.isArray;
+
+module.exports = isArray;
+
+
+/***/ }),
+/* 15 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+
+exports.default = function (instance, Constructor) {
+  if (!(instance instanceof Constructor)) {
+    throw new TypeError("Cannot call a class as a function");
+  }
+};
+
+/***/ }),
+/* 16 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+
+var _getIterator2 = __webpack_require__(1);
+
+var _getIterator3 = _interopRequireDefault(_getIterator2);
+
+var _classCallCheck2 = __webpack_require__(15);
+
+var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
+
+var _virtualTypes = __webpack_require__(95);
+
+var virtualTypes = _interopRequireWildcard(_virtualTypes);
+
+var _debug2 = __webpack_require__(229);
+
+var _debug3 = _interopRequireDefault(_debug2);
+
+var _invariant = __webpack_require__(238);
+
+var _invariant2 = _interopRequireDefault(_invariant);
+
+var _index = __webpack_require__(27);
+
+var _index2 = _interopRequireDefault(_index);
+
+var _assign = __webpack_require__(129);
+
+var _assign2 = _interopRequireDefault(_assign);
+
+var _scope = __webpack_require__(57);
+
+var _scope2 = _interopRequireDefault(_scope);
+
+var _babelTypes = __webpack_require__(0);
+
+var t = _interopRequireWildcard(_babelTypes);
+
+var _cache = __webpack_require__(34);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var _debug = (0, _debug3.default)("babel");
+
+var NodePath = function () {
+  function NodePath(hub, parent) {
+    (0, _classCallCheck3.default)(this, NodePath);
+
+    this.parent = parent;
+    this.hub = hub;
+    this.contexts = [];
+    this.data = {};
+    this.shouldSkip = false;
+    this.shouldStop = false;
+    this.removed = false;
+    this.state = null;
+    this.opts = null;
+    this.skipKeys = null;
+    this.parentPath = null;
+    this.context = null;
+    this.container = null;
+    this.listKey = null;
+    this.inList = false;
+    this.parentKey = null;
+    this.key = null;
+    this.node = null;
+    this.scope = null;
+    this.type = null;
+    this.typeAnnotation = null;
+  }
+
+  NodePath.get = function get(_ref) {
+    var hub = _ref.hub,
+        parentPath = _ref.parentPath,
+        parent = _ref.parent,
+        container = _ref.container,
+        listKey = _ref.listKey,
+        key = _ref.key;
+
+    if (!hub && parentPath) {
+      hub = parentPath.hub;
+    }
+
+    (0, _invariant2.default)(parent, "To get a node path the parent needs to exist");
+
+    var targetNode = container[key];
+
+    var paths = _cache.path.get(parent) || [];
+    if (!_cache.path.has(parent)) {
+      _cache.path.set(parent, paths);
+    }
+
+    var path = void 0;
+
+    for (var i = 0; i < paths.length; i++) {
+      var pathCheck = paths[i];
+      if (pathCheck.node === targetNode) {
+        path = pathCheck;
+        break;
+      }
+    }
+
+    if (!path) {
+      path = new NodePath(hub, parent);
+      paths.push(path);
+    }
+
+    path.setup(parentPath, container, listKey, key);
+
+    return path;
+  };
+
+  NodePath.prototype.getScope = function getScope(scope) {
+    var ourScope = scope;
+
+    if (this.isScope()) {
+      ourScope = new _scope2.default(this, scope);
+    }
+
+    return ourScope;
+  };
+
+  NodePath.prototype.setData = function setData(key, val) {
+    return this.data[key] = val;
+  };
+
+  NodePath.prototype.getData = function getData(key, def) {
+    var val = this.data[key];
+    if (!val && def) val = this.data[key] = def;
+    return val;
+  };
+
+  NodePath.prototype.buildCodeFrameError = function buildCodeFrameError(msg) {
+    var Error = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : SyntaxError;
+
+    return this.hub.file.buildCodeFrameError(this.node, msg, Error);
+  };
+
+  NodePath.prototype.traverse = function traverse(visitor, state) {
+    (0, _index2.default)(this.node, visitor, this.scope, state, this);
+  };
+
+  NodePath.prototype.mark = function mark(type, message) {
+    this.hub.file.metadata.marked.push({
+      type: type,
+      message: message,
+      loc: this.node.loc
+    });
+  };
+
+  NodePath.prototype.set = function set(key, node) {
+    t.validate(this.node, key, node);
+    this.node[key] = node;
+  };
+
+  NodePath.prototype.getPathLocation = function getPathLocation() {
+    var parts = [];
+    var path = this;
+    do {
+      var key = path.key;
+      if (path.inList) key = path.listKey + "[" + key + "]";
+      parts.unshift(key);
+    } while (path = path.parentPath);
+    return parts.join(".");
+  };
+
+  NodePath.prototype.debug = function debug(buildMessage) {
+    if (!_debug.enabled) return;
+    _debug(this.getPathLocation() + " " + this.type + ": " + buildMessage());
+  };
+
+  return NodePath;
+}();
+
+exports.default = NodePath;
+
+
+(0, _assign2.default)(NodePath.prototype, __webpack_require__(153));
+(0, _assign2.default)(NodePath.prototype, __webpack_require__(159));
+(0, _assign2.default)(NodePath.prototype, __webpack_require__(167));
+(0, _assign2.default)(NodePath.prototype, __webpack_require__(157));
+(0, _assign2.default)(NodePath.prototype, __webpack_require__(156));
+(0, _assign2.default)(NodePath.prototype, __webpack_require__(162));
+(0, _assign2.default)(NodePath.prototype, __webpack_require__(155));
+(0, _assign2.default)(NodePath.prototype, __webpack_require__(166));
+(0, _assign2.default)(NodePath.prototype, __webpack_require__(165));
+(0, _assign2.default)(NodePath.prototype, __webpack_require__(158));
+(0, _assign2.default)(NodePath.prototype, __webpack_require__(154));
+
+var _loop2 = function _loop2() {
+  if (_isArray) {
+    if (_i >= _iterator.length) return "break";
+    _ref2 = _iterator[_i++];
+  } else {
+    _i = _iterator.next();
+    if (_i.done) return "break";
+    _ref2 = _i.value;
+  }
+
+  var type = _ref2;
+
+  var typeKey = "is" + type;
+  NodePath.prototype[typeKey] = function (opts) {
+    return t[typeKey](this.node, opts);
+  };
+
+  NodePath.prototype["assert" + type] = function (opts) {
+    if (!this[typeKey](opts)) {
+      throw new TypeError("Expected node path of type " + type);
+    }
+  };
+};
+
+for (var _iterator = t.TYPES, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
+  var _ref2;
+
+  var _ret2 = _loop2();
+
+  if (_ret2 === "break") break;
+}
+
+var _loop = function _loop(type) {
+  if (type[0] === "_") return "continue";
+  if (t.TYPES.indexOf(type) < 0) t.TYPES.push(type);
+
+  var virtualType = virtualTypes[type];
+
+  NodePath.prototype["is" + type] = function (opts) {
+    return virtualType.checkPath(this, opts);
+  };
+};
+
+for (var type in virtualTypes) {
+  var _ret = _loop(type);
+
+  if (_ret === "continue") continue;
+}
+module.exports = exports["default"];
+
+/***/ }),
+/* 17 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var global    = __webpack_require__(4)
+  , core      = __webpack_require__(2)
+  , ctx       = __webpack_require__(35)
+  , hide      = __webpack_require__(11)
+  , PROTOTYPE = 'prototype';
+
+var $export = function(type, name, source){
+  var IS_FORCED = type & $export.F
+    , IS_GLOBAL = type & $export.G
+    , IS_STATIC = type & $export.S
+    , IS_PROTO  = type & $export.P
+    , IS_BIND   = type & $export.B
+    , IS_WRAP   = type & $export.W
+    , exports   = IS_GLOBAL ? core : core[name] || (core[name] = {})
+    , expProto  = exports[PROTOTYPE]
+    , target    = IS_GLOBAL ? global : IS_STATIC ? global[name] : (global[name] || {})[PROTOTYPE]
+    , key, own, out;
+  if(IS_GLOBAL)source = name;
+  for(key in source){
+    // contains in native
+    own = !IS_FORCED && target && target[key] !== undefined;
+    if(own && key in exports)continue;
+    // export native or passed
+    out = own ? target[key] : source[key];
+    // prevent global pollution for namespaces
+    exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key]
+    // bind timers to global for call from export context
+    : IS_BIND && own ? ctx(out, global)
+    // wrap global constructors for prevent change them in library
+    : IS_WRAP && target[key] == out ? (function(C){
+      var F = function(a, b, c){
+        if(this instanceof C){
+          switch(arguments.length){
+            case 0: return new C;
+            case 1: return new C(a);
+            case 2: return new C(a, b);
+          } return new C(a, b, c);
+        } return C.apply(this, arguments);
+      };
+      F[PROTOTYPE] = C[PROTOTYPE];
+      return F;
+    // make static versions for prototype methods
+    })(out) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
+    // export proto methods to core.%CONSTRUCTOR%.methods.%NAME%
+    if(IS_PROTO){
+      (exports.virtual || (exports.virtual = {}))[key] = out;
+      // export proto methods to core.%CONSTRUCTOR%.prototype.%NAME%
+      if(type & $export.R && expProto && !expProto[key])hide(expProto, key, out);
+    }
+  }
+};
+// type bitmap
+$export.F = 1;   // forced
+$export.G = 2;   // global
+$export.S = 4;   // static
+$export.P = 8;   // proto
+$export.B = 16;  // bind
+$export.W = 32;  // wrap
+$export.U = 64;  // safe
+$export.R = 128; // real proto method for `library` 
+module.exports = $export;
+
+/***/ }),
+/* 18 */
+/***/ (function(module, exports) {
+
+module.exports = function(exec){
+  try {
+    return !!exec();
+  } catch(e){
+    return true;
+  }
+};
+
+/***/ }),
+/* 19 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// to indexed object, toObject with fallback for non-array-like ES3 strings
+var IObject = __webpack_require__(63)
+  , defined = __webpack_require__(36);
+module.exports = function(it){
+  return IObject(defined(it));
+};
+
+/***/ }),
+/* 20 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseIsNative = __webpack_require__(261),
+    getValue = __webpack_require__(291);
+
+/**
+ * Gets the native function at `key` of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {string} key The key of the method to get.
+ * @returns {*} Returns the function if it's native, else `undefined`.
+ */
+function getNative(object, key) {
+  var value = getValue(object, key);
+  return baseIsNative(value) ? value : undefined;
+}
+
+module.exports = getNative;
+
+
+/***/ }),
+/* 21 */
+/***/ (function(module, exports) {
+
+/**
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+ * @example
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(_.noop);
+ * // => true
+ *
+ * _.isObject(null);
+ * // => false
+ */
+function isObject(value) {
+  var type = typeof value;
+  return value != null && (type == 'object' || type == 'function');
+}
+
+module.exports = isObject;
+
+
+/***/ }),
+/* 22 */
+/***/ (function(module, exports) {
+
+/**
+ * Checks if `value` is object-like. A value is object-like if it's not `null`
+ * and has a `typeof` result of "object".
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+ * @example
+ *
+ * _.isObjectLike({});
+ * // => true
+ *
+ * _.isObjectLike([1, 2, 3]);
+ * // => true
+ *
+ * _.isObjectLike(_.noop);
+ * // => false
+ *
+ * _.isObjectLike(null);
+ * // => false
+ */
+function isObjectLike(value) {
+  return value != null && typeof value == 'object';
+}
+
+module.exports = isObjectLike;
+
+
+/***/ }),
+/* 23 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// 19.1.2.14 / 15.2.3.14 Object.keys(O)
+var $keys       = __webpack_require__(106)
+  , enumBugKeys = __webpack_require__(62);
+
+module.exports = Object.keys || function keys(O){
+  return $keys(O, enumBugKeys);
+};
+
+/***/ }),
+/* 24 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var assignValue = __webpack_require__(82),
+    baseAssignValue = __webpack_require__(115);
+
+/**
+ * Copies properties of `source` to `object`.
+ *
+ * @private
+ * @param {Object} source The object to copy properties from.
+ * @param {Array} props The property identifiers to copy.
+ * @param {Object} [object={}] The object to copy properties to.
+ * @param {Function} [customizer] The function to customize copied values.
+ * @returns {Object} Returns `object`.
+ */
+function copyObject(source, props, object, customizer) {
+  var isNew = !object;
+  object || (object = {});
+
+  var index = -1,
+      length = props.length;
+
+  while (++index < length) {
+    var key = props[index];
+
+    var newValue = customizer
+      ? customizer(object[key], source[key], key, object, source)
+      : undefined;
+
+    if (newValue === undefined) {
+      newValue = source[key];
+    }
+    if (isNew) {
+      baseAssignValue(object, key, newValue);
+    } else {
+      assignValue(object, key, newValue);
+    }
+  }
+  return object;
+}
+
+module.exports = copyObject;
+
+
+/***/ }),
+/* 25 */
+/***/ (function(module, exports) {
+
+// shim for using process in browser
+var process = module.exports = {};
+
+// cached from whatever global is present so that test runners that stub it
+// don't break things.  But we need to wrap it in a try catch in case it is
+// wrapped in strict mode code which doesn't define any globals.  It's inside a
+// function because try/catches deoptimize in certain engines.
+
+var cachedSetTimeout;
+var cachedClearTimeout;
+
+function defaultSetTimout() {
+    throw new Error('setTimeout has not been defined');
+}
+function defaultClearTimeout () {
+    throw new Error('clearTimeout has not been defined');
+}
+(function () {
+    try {
+        if (typeof setTimeout === 'function') {
+            cachedSetTimeout = setTimeout;
+        } else {
+            cachedSetTimeout = defaultSetTimout;
+        }
+    } catch (e) {
+        cachedSetTimeout = defaultSetTimout;
+    }
+    try {
+        if (typeof clearTimeout === 'function') {
+            cachedClearTimeout = clearTimeout;
+        } else {
+            cachedClearTimeout = defaultClearTimeout;
+        }
+    } catch (e) {
+        cachedClearTimeout = defaultClearTimeout;
+    }
+} ())
+function runTimeout(fun) {
+    if (cachedSetTimeout === setTimeout) {
+        //normal enviroments in sane situations
+        return setTimeout(fun, 0);
+    }
+    // if setTimeout wasn't available but was latter defined
+    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
+        cachedSetTimeout = setTimeout;
+        return setTimeout(fun, 0);
+    }
+    try {
+        // when when somebody has screwed with setTimeout but no I.E. maddness
+        return cachedSetTimeout(fun, 0);
+    } catch(e){
+        try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+            return cachedSetTimeout.call(null, fun, 0);
+        } catch(e){
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+            return cachedSetTimeout.call(this, fun, 0);
+        }
+    }
+
+
+}
+function runClearTimeout(marker) {
+    if (cachedClearTimeout === clearTimeout) {
+        //normal enviroments in sane situations
+        return clearTimeout(marker);
+    }
+    // if clearTimeout wasn't available but was latter defined
+    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
+        cachedClearTimeout = clearTimeout;
+        return clearTimeout(marker);
+    }
+    try {
+        // when when somebody has screwed with setTimeout but no I.E. maddness
+        return cachedClearTimeout(marker);
+    } catch (e){
+        try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
+            return cachedClearTimeout.call(null, marker);
+        } catch (e){
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+            return cachedClearTimeout.call(this, marker);
+        }
+    }
+
+
+
+}
+var queue = [];
+var draining = false;
+var currentQueue;
+var queueIndex = -1;
+
+function cleanUpNextTick() {
+    if (!draining || !currentQueue) {
+        return;
+    }
+    draining = false;
+    if (currentQueue.length) {
+        queue = currentQueue.concat(queue);
+    } else {
+        queueIndex = -1;
+    }
+    if (queue.length) {
+        drainQueue();
+    }
+}
+
+function drainQueue() {
+    if (draining) {
+        return;
+    }
+    var timeout = runTimeout(cleanUpNextTick);
+    draining = true;
+
+    var len = queue.length;
+    while(len) {
+        currentQueue = queue;
+        queue = [];
+        while (++queueIndex < len) {
+            if (currentQueue) {
+                currentQueue[queueIndex].run();
+            }
+        }
+        queueIndex = -1;
+        len = queue.length;
+    }
+    currentQueue = null;
+    draining = false;
+    runClearTimeout(timeout);
+}
+
+process.nextTick = function (fun) {
+    var args = new Array(arguments.length - 1);
+    if (arguments.length > 1) {
+        for (var i = 1; i < arguments.length; i++) {
+            args[i - 1] = arguments[i];
+        }
+    }
+    queue.push(new Item(fun, args));
+    if (queue.length === 1 && !draining) {
+        runTimeout(drainQueue);
+    }
+};
+
+// v8 likes predictible objects
+function Item(fun, array) {
+    this.fun = fun;
+    this.array = array;
+}
+Item.prototype.run = function () {
+    this.fun.apply(null, this.array);
+};
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+process.version = ''; // empty string to avoid regexp issues
+process.versions = {};
+
+function noop() {}
+
+process.on = noop;
+process.addListener = noop;
+process.once = noop;
+process.off = noop;
+process.removeListener = noop;
+process.removeAllListeners = noop;
+process.emit = noop;
+
+process.binding = function (name) {
+    throw new Error('process.binding is not supported');
+};
+
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+    throw new Error('process.chdir is not supported');
+};
+process.umask = function() { return 0; };
+
+
+/***/ }),
+/* 26 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+
+var _iterator = __webpack_require__(150);
+
+var _iterator2 = _interopRequireDefault(_iterator);
+
+var _symbol = __webpack_require__(93);
+
+var _symbol2 = _interopRequireDefault(_symbol);
+
+var _typeof = typeof _symbol2.default === "function" && typeof _iterator2.default === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj; };
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+exports.default = typeof _symbol2.default === "function" && _typeof(_iterator2.default) === "symbol" ? function (obj) {
+  return typeof obj === "undefined" ? "undefined" : _typeof(obj);
+} : function (obj) {
+  return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj === "undefined" ? "undefined" : _typeof(obj);
+};
+
+/***/ }),
+/* 27 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+exports.visitors = exports.Hub = exports.Scope = exports.NodePath = undefined;
+
+var _getIterator2 = __webpack_require__(1);
+
+var _getIterator3 = _interopRequireDefault(_getIterator2);
+
+var _path = __webpack_require__(16);
+
+Object.defineProperty(exports, "NodePath", {
+  enumerable: true,
+  get: function get() {
+    return _interopRequireDefault(_path).default;
+  }
+});
+
+var _scope = __webpack_require__(57);
+
+Object.defineProperty(exports, "Scope", {
+  enumerable: true,
+  get: function get() {
+    return _interopRequireDefault(_scope).default;
+  }
+});
+
+var _hub = __webpack_require__(94);
+
+Object.defineProperty(exports, "Hub", {
+  enumerable: true,
+  get: function get() {
+    return _interopRequireDefault(_hub).default;
+  }
+});
+exports.default = traverse;
+
+var _context = __webpack_require__(152);
+
+var _context2 = _interopRequireDefault(_context);
+
+var _visitors = __webpack_require__(169);
+
+var visitors = _interopRequireWildcard(_visitors);
+
+var _babelMessages = __webpack_require__(55);
+
+var messages = _interopRequireWildcard(_babelMessages);
+
+var _includes = __webpack_require__(88);
+
+var _includes2 = _interopRequireDefault(_includes);
+
+var _babelTypes = __webpack_require__(0);
+
+var t = _interopRequireWildcard(_babelTypes);
+
+var _cache = __webpack_require__(34);
+
+var cache = _interopRequireWildcard(_cache);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+exports.visitors = visitors;
+function traverse(parent, opts, scope, state, parentPath) {
+  if (!parent) return;
+  if (!opts) opts = {};
+
+  if (!opts.noScope && !scope) {
+    if (parent.type !== "Program" && parent.type !== "File") {
+      throw new Error(messages.get("traverseNeedsParent", parent.type));
+    }
+  }
+
+  visitors.explode(opts);
+
+  traverse.node(parent, opts, scope, state, parentPath);
+}
+
+traverse.visitors = visitors;
+traverse.verify = visitors.verify;
+traverse.explode = visitors.explode;
+
+traverse.NodePath = __webpack_require__(16);
+traverse.Scope = __webpack_require__(57);
+traverse.Hub = __webpack_require__(94);
+
+traverse.cheap = function (node, enter) {
+  return t.traverseFast(node, enter);
+};
+
+traverse.node = function (node, opts, scope, state, parentPath, skipKeys) {
+  var keys = t.VISITOR_KEYS[node.type];
+  if (!keys) return;
+
+  var context = new _context2.default(scope, opts, state, parentPath);
+  for (var _iterator = keys, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
+    var _ref;
+
+    if (_isArray) {
+      if (_i >= _iterator.length) break;
+      _ref = _iterator[_i++];
+    } else {
+      _i = _iterator.next();
+      if (_i.done) break;
+      _ref = _i.value;
+    }
+
+    var key = _ref;
+
+    if (skipKeys && skipKeys[key]) continue;
+    if (context.visit(node, key)) return;
+  }
+};
+
+traverse.clearNode = function (node, opts) {
+  t.removeProperties(node, opts);
+
+  cache.path.delete(node);
+};
+
+traverse.removeProperties = function (tree, opts) {
+  t.traverseFast(tree, traverse.clearNode, opts);
+  return tree;
+};
+
+function hasBlacklistedType(path, state) {
+  if (path.node.type === state.type) {
+    state.has = true;
+    path.stop();
+  }
+}
+
+traverse.hasType = function (tree, scope, type, blacklistTypes) {
+  if ((0, _includes2.default)(blacklistTypes, tree.type)) return false;
+
+  if (tree.type === type) return true;
+
+  var state = {
+    has: false,
+    type: type
+  };
+
+  traverse(tree, {
+    blacklist: blacklistTypes,
+    enter: hasBlacklistedType
+  }, scope, state);
+
+  return state.has;
+};
+
+traverse.clearCache = function () {
+  cache.clear();
+};
+
+traverse.clearCache.clearPath = cache.clearPath;
+traverse.clearCache.clearScope = cache.clearScope;
+
+traverse.copyCache = function (source, destination) {
+  if (cache.path.has(source)) {
+    cache.path.set(destination, cache.path.get(source));
+  }
+};
+
+/***/ }),
+/* 28 */
+/***/ (function(module, exports) {
+
+module.exports = {};
+
+/***/ }),
+/* 29 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var META     = __webpack_require__(43)('meta')
+  , isObject = __webpack_require__(12)
+  , has      = __webpack_require__(10)
+  , setDesc  = __webpack_require__(7).f
+  , id       = 0;
+var isExtensible = Object.isExtensible || function(){
+  return true;
+};
+var FREEZE = !__webpack_require__(18)(function(){
+  return isExtensible(Object.preventExtensions({}));
+});
+var setMeta = function(it){
+  setDesc(it, META, {value: {
+    i: 'O' + ++id, // object ID
+    w: {}          // weak collections IDs
+  }});
+};
+var fastKey = function(it, create){
+  // return primitive with prefix
+  if(!isObject(it))return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
+  if(!has(it, META)){
+    // can't set metadata to uncaught frozen object
+    if(!isExtensible(it))return 'F';
+    // not necessary to add metadata
+    if(!create)return 'E';
+    // add missing metadata
+    setMeta(it);
+  // return object ID
+  } return it[META].i;
+};
+var getWeak = function(it, create){
+  if(!has(it, META)){
+    // can't set metadata to uncaught frozen object
+    if(!isExtensible(it))return true;
+    // not necessary to add metadata
+    if(!create)return false;
+    // add missing metadata
+    setMeta(it);
+  // return hash weak collections IDs
+  } return it[META].w;
+};
+// add metadata on freeze-family methods calling
+var onFreeze = function(it){
+  if(FREEZE && meta.NEED && isExtensible(it) && !has(it, META))setMeta(it);
+  return it;
+};
+var meta = module.exports = {
+  KEY:      META,
+  NEED:     false,
+  fastKey:  fastKey,
+  getWeak:  getWeak,
+  onFreeze: onFreeze
+};
+
+/***/ }),
+/* 30 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var isFunction = __webpack_require__(134),
+    isLength = __webpack_require__(89);
+
+/**
+ * Checks if `value` is array-like. A value is considered array-like if it's
+ * not a function and has a `value.length` that's an integer greater than or
+ * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
+ * @example
+ *
+ * _.isArrayLike([1, 2, 3]);
+ * // => true
+ *
+ * _.isArrayLike(document.body.children);
+ * // => true
+ *
+ * _.isArrayLike('abc');
+ * // => true
+ *
+ * _.isArrayLike(_.noop);
+ * // => false
+ */
+function isArrayLike(value) {
+  return value != null && isLength(value.length) && !isFunction(value);
+}
+
+module.exports = isArrayLike;
+
+
+/***/ }),
+/* 31 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var arrayLikeKeys = __webpack_require__(111),
+    baseKeys = __webpack_require__(264),
+    isArrayLike = __webpack_require__(30);
+
+/**
+ * Creates an array of the own enumerable property names of `object`.
+ *
+ * **Note:** Non-object values are coerced to objects. See the
+ * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
+ * for more details.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ * @example
+ *
+ * function Foo() {
+ *   this.a = 1;
+ *   this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.keys(new Foo);
+ * // => ['a', 'b'] (iteration order is not guaranteed)
+ *
+ * _.keys('hi');
+ * // => ['0', '1']
+ */
+function keys(object) {
+  return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
+}
+
+module.exports = keys;
+
+
+/***/ }),
+/* 32 */
+/***/ (function(module, exports, __webpack_require__) {
+
+module.exports = { "default": __webpack_require__(185), __esModule: true };
+
+/***/ }),
+/* 33 */
+/***/ (function(module, exports, __webpack_require__) {
+
+module.exports = { "default": __webpack_require__(190), __esModule: true };
+
+/***/ }),
+/* 34 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+exports.scope = exports.path = undefined;
+
+var _weakMap = __webpack_require__(151);
+
+var _weakMap2 = _interopRequireDefault(_weakMap);
+
+exports.clear = clear;
+exports.clearPath = clearPath;
+exports.clearScope = clearScope;
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var path = exports.path = new _weakMap2.default();
+var scope = exports.scope = new _weakMap2.default();
+
+function clear() {
+  clearPath();
+  clearScope();
+}
+
+function clearPath() {
+  exports.path = path = new _weakMap2.default();
+}
+
+function clearScope() {
+  exports.scope = scope = new _weakMap2.default();
+}
+
+/***/ }),
+/* 35 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// optional / simple context binding
+var aFunction = __webpack_require__(195);
+module.exports = function(fn, that, length){
+  aFunction(fn);
+  if(that === undefined)return fn;
+  switch(length){
+    case 1: return function(a){
+      return fn.call(that, a);
+    };
+    case 2: return function(a, b){
+      return fn.call(that, a, b);
+    };
+    case 3: return function(a, b, c){
+      return fn.call(that, a, b, c);
+    };
+  }
+  return function(/* ...args */){
+    return fn.apply(that, arguments);
+  };
+};
+
+/***/ }),
+/* 36 */
+/***/ (function(module, exports) {
+
+// 7.2.1 RequireObjectCoercible(argument)
+module.exports = function(it){
+  if(it == undefined)throw TypeError("Can't call method on  " + it);
+  return it;
+};
+
+/***/ }),
+/* 37 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var ctx         = __webpack_require__(35)
+  , call        = __webpack_require__(207)
+  , isArrayIter = __webpack_require__(206)
+  , anObject    = __webpack_require__(9)
+  , toLength    = __webpack_require__(72)
+  , getIterFn   = __webpack_require__(107)
+  , BREAK       = {}
+  , RETURN      = {};
+var exports = module.exports = function(iterable, entries, fn, that, ITERATOR){
+  var iterFn = ITERATOR ? function(){ return iterable; } : getIterFn(iterable)
+    , f      = ctx(fn, that, entries ? 2 : 1)
+    , index  = 0
+    , length, step, iterator, result;
+  if(typeof iterFn != 'function')throw TypeError(iterable + ' is not iterable!');
+  // fast case for arrays with default iterator
+  if(isArrayIter(iterFn))for(length = toLength(iterable.length); length > index; index++){
+    result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
+    if(result === BREAK || result === RETURN)return result;
+  } else for(iterator = iterFn.call(iterable); !(step = iterator.next()).done; ){
+    result = call(iterator, f, step.value, entries);
+    if(result === BREAK || result === RETURN)return result;
+  }
+};
+exports.BREAK  = BREAK;
+exports.RETURN = RETURN;
+
+/***/ }),
+/* 38 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
+var anObject    = __webpack_require__(9)
+  , dPs         = __webpack_require__(211)
+  , enumBugKeys = __webpack_require__(62)
+  , IE_PROTO    = __webpack_require__(69)('IE_PROTO')
+  , Empty       = function(){ /* empty */ }
+  , PROTOTYPE   = 'prototype';
+
+// Create object with fake `null` prototype: use iframe Object with cleared prototype
+var createDict = function(){
+  // Thrash, waste and sodomy: IE GC bug
+  var iframe = __webpack_require__(101)('iframe')
+    , i      = enumBugKeys.length
+    , lt     = '<'
+    , gt     = '>'
+    , iframeDocument;
+  iframe.style.display = 'none';
+  __webpack_require__(205).appendChild(iframe);
+  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
+  // createDict = iframe.contentWindow.Object;
+  // html.removeChild(iframe);
+  iframeDocument = iframe.contentWindow.document;
+  iframeDocument.open();
+  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
+  iframeDocument.close();
+  createDict = iframeDocument.F;
+  while(i--)delete createDict[PROTOTYPE][enumBugKeys[i]];
+  return createDict();
+};
+
+module.exports = Object.create || function create(O, Properties){
+  var result;
+  if(O !== null){
+    Empty[PROTOTYPE] = anObject(O);
+    result = new Empty;
+    Empty[PROTOTYPE] = null;
+    // add "__proto__" for Object.getPrototypeOf polyfill
+    result[IE_PROTO] = O;
+  } else result = createDict();
+  return Properties === undefined ? result : dPs(result, Properties);
+};
+
+
+/***/ }),
+/* 39 */
+/***/ (function(module, exports) {
+
+exports.f = {}.propertyIsEnumerable;
+
+/***/ }),
+/* 40 */
+/***/ (function(module, exports) {
+
+module.exports = function(bitmap, value){
+  return {
+    enumerable  : !(bitmap & 1),
+    configurable: !(bitmap & 2),
+    writable    : !(bitmap & 4),
+    value       : value
+  };
+};
+
+/***/ }),
+/* 41 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var def = __webpack_require__(7).f
+  , has = __webpack_require__(10)
+  , TAG = __webpack_require__(3)('toStringTag');
+
+module.exports = function(it, tag, stat){
+  if(it && !has(it = stat ? it : it.prototype, TAG))def(it, TAG, {configurable: true, value: tag});
+};
+
+/***/ }),
+/* 42 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// 7.1.13 ToObject(argument)
+var defined = __webpack_require__(36);
+module.exports = function(it){
+  return Object(defined(it));
+};
+
+/***/ }),
+/* 43 */
+/***/ (function(module, exports) {
+
+var id = 0
+  , px = Math.random();
+module.exports = function(key){
+  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
+};
+
+/***/ }),
+/* 44 */
+/***/ (function(module, exports, __webpack_require__) {
+
+__webpack_require__(220);
+var global        = __webpack_require__(4)
+  , hide          = __webpack_require__(11)
+  , Iterators     = __webpack_require__(28)
+  , TO_STRING_TAG = __webpack_require__(3)('toStringTag');
+
+for(var collections = ['NodeList', 'DOMTokenList', 'MediaList', 'StyleSheetList', 'CSSRuleList'], i = 0; i < 5; i++){
+  var NAME       = collections[i]
+    , Collection = global[NAME]
+    , proto      = Collection && Collection.prototype;
+  if(proto && !proto[TO_STRING_TAG])hide(proto, TO_STRING_TAG, NAME);
+  Iterators[NAME] = Iterators.Array;
+}
+
+/***/ }),
+/* 45 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var listCacheClear = __webpack_require__(304),
+    listCacheDelete = __webpack_require__(305),
+    listCacheGet = __webpack_require__(306),
+    listCacheHas = __webpack_require__(307),
+    listCacheSet = __webpack_require__(308);
+
+/**
+ * Creates an list cache object.
+ *
+ * @private
+ * @constructor
+ * @param {Array} [entries] The key-value pairs to cache.
+ */
+function ListCache(entries) {
+  var index = -1,
+      length = entries == null ? 0 : entries.length;
+
+  this.clear();
+  while (++index < length) {
+    var entry = entries[index];
+    this.set(entry[0], entry[1]);
+  }
+}
+
+// Add methods to `ListCache`.
+ListCache.prototype.clear = listCacheClear;
+ListCache.prototype['delete'] = listCacheDelete;
+ListCache.prototype.get = listCacheGet;
+ListCache.prototype.has = listCacheHas;
+ListCache.prototype.set = listCacheSet;
+
+module.exports = ListCache;
+
+
+/***/ }),
+/* 46 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var root = __webpack_require__(5);
+
+/** Built-in value references. */
+var Symbol = root.Symbol;
+
+module.exports = Symbol;
+
+
+/***/ }),
+/* 47 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var eq = __webpack_require__(51);
+
+/**
+ * Gets the index at which the `key` is found in `array` of key-value pairs.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {*} key The key to search for.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ */
+function assocIndexOf(array, key) {
+  var length = array.length;
+  while (length--) {
+    if (eq(array[length][0], key)) {
+      return length;
+    }
+  }
+  return -1;
+}
+
+module.exports = assocIndexOf;
+
+
+/***/ }),
+/* 48 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var isKeyable = __webpack_require__(302);
+
+/**
+ * Gets the data for `map`.
+ *
+ * @private
+ * @param {Object} map The map to query.
+ * @param {string} key The reference key.
+ * @returns {*} Returns the map data.
+ */
+function getMapData(map, key) {
+  var data = map.__data__;
+  return isKeyable(key)
+    ? data[typeof key == 'string' ? 'string' : 'hash']
+    : data.map;
+}
+
+module.exports = getMapData;
+
+
+/***/ }),
+/* 49 */
+/***/ (function(module, exports) {
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/**
+ * Checks if `value` is likely a prototype object.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
+ */
+function isPrototype(value) {
+  var Ctor = value && value.constructor,
+      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
+
+  return value === proto;
+}
+
+module.exports = isPrototype;
+
+
+/***/ }),
+/* 50 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var getNative = __webpack_require__(20);
+
+/* Built-in method references that are verified to be native. */
+var nativeCreate = getNative(Object, 'create');
+
+module.exports = nativeCreate;
+
+
+/***/ }),
+/* 51 */
+/***/ (function(module, exports) {
+
+/**
+ * Performs a
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * comparison between two values to determine if they are equivalent.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+ * @example
+ *
+ * var object = { 'a': 1 };
+ * var other = { 'a': 1 };
+ *
+ * _.eq(object, object);
+ * // => true
+ *
+ * _.eq(object, other);
+ * // => false
+ *
+ * _.eq('a', 'a');
+ * // => true
+ *
+ * _.eq('a', Object('a'));
+ * // => false
+ *
+ * _.eq(NaN, NaN);
+ * // => true
+ */
+function eq(value, other) {
+  return value === other || (value !== value && other !== other);
+}
+
+module.exports = eq;
+
+
+/***/ }),
+/* 52 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseGetTag = __webpack_require__(13),
+    isObjectLike = __webpack_require__(22);
+
+/** `Object#toString` result references. */
+var symbolTag = '[object Symbol]';
+
+/**
+ * Checks if `value` is classified as a `Symbol` primitive or object.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
+ * @example
+ *
+ * _.isSymbol(Symbol.iterator);
+ * // => true
+ *
+ * _.isSymbol('abc');
+ * // => false
+ */
+function isSymbol(value) {
+  return typeof value == 'symbol' ||
+    (isObjectLike(value) && baseGetTag(value) == symbolTag);
+}
+
+module.exports = isSymbol;
+
+
+/***/ }),
+/* 53 */
+/***/ (function(module, exports) {
+
+var g;

+

+// This works in non-strict mode

+g = (function() {

+	return this;

+})();

+

+try {

+	// This works if eval is allowed (see CSP)

+	g = g || Function("return this")() || (1,eval)("this");

+} catch(e) {

+	// This works if the window reference is available

+	if(typeof window === "object")

+		g = window;

+}

+

+// g can still be undefined, but nothing to do about it...

+// We return undefined, instead of nothing here, so it's

+// easier to handle this case. if(!global) { ...}

+

+module.exports = g;

+
+
+/***/ }),
+/* 54 */
+/***/ (function(module, exports) {
+
+module.exports = function(module) {

+	if(!module.webpackPolyfill) {

+		module.deprecate = function() {};

+		module.paths = [];

+		// module.parent = undefined by default

+		if(!module.children) module.children = [];

+		Object.defineProperty(module, "loaded", {

+			enumerable: true,

+			get: function() {

+				return module.l;

+			}

+		});

+		Object.defineProperty(module, "id", {

+			enumerable: true,

+			get: function() {

+				return module.i;

+			}

+		});

+		module.webpackPolyfill = 1;

+	}

+	return module;

+};

+
+
+/***/ }),
+/* 55 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+exports.MESSAGES = undefined;
+
+var _stringify = __webpack_require__(32);
+
+var _stringify2 = _interopRequireDefault(_stringify);
+
+exports.get = get;
+exports.parseArgs = parseArgs;
+
+var _util = __webpack_require__(355);
+
+var util = _interopRequireWildcard(_util);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var MESSAGES = exports.MESSAGES = {
+  tailCallReassignmentDeopt: "Function reference has been reassigned, so it will probably be dereferenced, therefore we can't optimise this with confidence",
+  classesIllegalBareSuper: "Illegal use of bare super",
+  classesIllegalSuperCall: "Direct super call is illegal in non-constructor, use super.$1() instead",
+  scopeDuplicateDeclaration: "Duplicate declaration $1",
+  settersNoRest: "Setters aren't allowed to have a rest",
+  noAssignmentsInForHead: "No assignments allowed in for-in/of head",
+  expectedMemberExpressionOrIdentifier: "Expected type MemberExpression or Identifier",
+  invalidParentForThisNode: "We don't know how to handle this node within the current parent - please open an issue",
+  readOnly: "$1 is read-only",
+  unknownForHead: "Unknown node type $1 in ForStatement",
+  didYouMean: "Did you mean $1?",
+  codeGeneratorDeopt: "Note: The code generator has deoptimised the styling of $1 as it exceeds the max of $2.",
+  missingTemplatesDirectory: "no templates directory - this is most likely the result of a broken `npm publish`. Please report to https://github.com/babel/babel/issues",
+  unsupportedOutputType: "Unsupported output type $1",
+  illegalMethodName: "Illegal method name $1",
+  lostTrackNodePath: "We lost track of this node's position, likely because the AST was directly manipulated",
+
+  modulesIllegalExportName: "Illegal export $1",
+  modulesDuplicateDeclarations: "Duplicate module declarations with the same source but in different scopes",
+
+  undeclaredVariable: "Reference to undeclared variable $1",
+  undeclaredVariableType: "Referencing a type alias outside of a type annotation",
+  undeclaredVariableSuggestion: "Reference to undeclared variable $1 - did you mean $2?",
+
+  traverseNeedsParent: "You must pass a scope and parentPath unless traversing a Program/File. Instead of that you tried to traverse a $1 node without passing scope and parentPath.",
+  traverseVerifyRootFunction: "You passed `traverse()` a function when it expected a visitor object, are you sure you didn't mean `{ enter: Function }`?",
+  traverseVerifyVisitorProperty: "You passed `traverse()` a visitor object with the property $1 that has the invalid property $2",
+  traverseVerifyNodeType: "You gave us a visitor for the node type $1 but it's not a valid type",
+
+  pluginNotObject: "Plugin $2 specified in $1 was expected to return an object when invoked but returned $3",
+  pluginNotFunction: "Plugin $2 specified in $1 was expected to return a function but returned $3",
+  pluginUnknown: "Unknown plugin $1 specified in $2 at $3, attempted to resolve relative to $4",
+  pluginInvalidProperty: "Plugin $2 specified in $1 provided an invalid property of $3"
+};
+
+function get(key) {
+  for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+    args[_key - 1] = arguments[_key];
+  }
+
+  var msg = MESSAGES[key];
+  if (!msg) throw new ReferenceError("Unknown message " + (0, _stringify2.default)(key));
+
+  args = parseArgs(args);
+
+  return msg.replace(/\$(\d+)/g, function (str, i) {
+    return args[i - 1];
+  });
+}
+
+function parseArgs(args) {
+  return args.map(function (val) {
+    if (val != null && val.inspect) {
+      return val.inspect();
+    } else {
+      try {
+        return (0, _stringify2.default)(val) || val + "";
+      } catch (e) {
+        return util.inspect(val);
+      }
+    }
+  });
+}
+
+/***/ }),
+/* 56 */
+/***/ (function(module, exports, __webpack_require__) {
+
+module.exports = { "default": __webpack_require__(188), __esModule: true };
+
+/***/ }),
+/* 57 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+
+var _keys = __webpack_require__(33);
+
+var _keys2 = _interopRequireDefault(_keys);
+
+var _create = __webpack_require__(56);
+
+var _create2 = _interopRequireDefault(_create);
+
+var _map = __webpack_require__(92);
+
+var _map2 = _interopRequireDefault(_map);
+
+var _classCallCheck2 = __webpack_require__(15);
+
+var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
+
+var _getIterator2 = __webpack_require__(1);
+
+var _getIterator3 = _interopRequireDefault(_getIterator2);
+
+var _includes = __webpack_require__(88);
+
+var _includes2 = _interopRequireDefault(_includes);
+
+var _repeat = __webpack_require__(343);
+
+var _repeat2 = _interopRequireDefault(_repeat);
+
+var _renamer = __webpack_require__(168);
+
+var _renamer2 = _interopRequireDefault(_renamer);
+
+var _index = __webpack_require__(27);
+
+var _index2 = _interopRequireDefault(_index);
+
+var _defaults = __webpack_require__(335);
+
+var _defaults2 = _interopRequireDefault(_defaults);
+
+var _babelMessages = __webpack_require__(55);
+
+var messages = _interopRequireWildcard(_babelMessages);
+
+var _binding2 = __webpack_require__(96);
+
+var _binding3 = _interopRequireDefault(_binding2);
+
+var _globals = __webpack_require__(235);
+
+var _globals2 = _interopRequireDefault(_globals);
+
+var _babelTypes = __webpack_require__(0);
+
+var t = _interopRequireWildcard(_babelTypes);
+
+var _cache = __webpack_require__(34);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var _crawlCallsCount = 0;
+
+function getCache(path, parentScope, self) {
+  var scopes = _cache.scope.get(path.node) || [];
+
+  for (var _iterator = scopes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
+    var _ref;
+
+    if (_isArray) {
+      if (_i >= _iterator.length) break;
+      _ref = _iterator[_i++];
+    } else {
+      _i = _iterator.next();
+      if (_i.done) break;
+      _ref = _i.value;
+    }
+
+    var scope = _ref;
+
+    if (scope.parent === parentScope && scope.path === path) return scope;
+  }
+
+  scopes.push(self);
+
+  if (!_cache.scope.has(path.node)) {
+    _cache.scope.set(path.node, scopes);
+  }
+}
+
+function gatherNodeParts(node, parts) {
+  if (t.isModuleDeclaration(node)) {
+    if (node.source) {
+      gatherNodeParts(node.source, parts);
+    } else if (node.specifiers && node.specifiers.length) {
+      for (var _iterator2 = node.specifiers, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) {
+        var _ref2;
+
+        if (_isArray2) {
+          if (_i2 >= _iterator2.length) break;
+          _ref2 = _iterator2[_i2++];
+        } else {
+          _i2 = _iterator2.next();
+          if (_i2.done) break;
+          _ref2 = _i2.value;
+        }
+
+        var specifier = _ref2;
+
+        gatherNodeParts(specifier, parts);
+      }
+    } else if (node.declaration) {
+      gatherNodeParts(node.declaration, parts);
+    }
+  } else if (t.isModuleSpecifier(node)) {
+    gatherNodeParts(node.local, parts);
+  } else if (t.isMemberExpression(node)) {
+    gatherNodeParts(node.object, parts);
+    gatherNodeParts(node.property, parts);
+  } else if (t.isIdentifier(node)) {
+    parts.push(node.name);
+  } else if (t.isLiteral(node)) {
+    parts.push(node.value);
+  } else if (t.isCallExpression(node)) {
+    gatherNodeParts(node.callee, parts);
+  } else if (t.isObjectExpression(node) || t.isObjectPattern(node)) {
+    for (var _iterator3 = node.properties, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) {
+      var _ref3;
+
+      if (_isArray3) {
+        if (_i3 >= _iterator3.length) break;
+        _ref3 = _iterator3[_i3++];
+      } else {
+        _i3 = _iterator3.next();
+        if (_i3.done) break;
+        _ref3 = _i3.value;
+      }
+
+      var prop = _ref3;
+
+      gatherNodeParts(prop.key || prop.argument, parts);
+    }
+  }
+}
+
+var collectorVisitor = {
+  For: function For(path) {
+    for (var _iterator4 = t.FOR_INIT_KEYS, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) {
+      var _ref4;
+
+      if (_isArray4) {
+        if (_i4 >= _iterator4.length) break;
+        _ref4 = _iterator4[_i4++];
+      } else {
+        _i4 = _iterator4.next();
+        if (_i4.done) break;
+        _ref4 = _i4.value;
+      }
+
+      var key = _ref4;
+
+      var declar = path.get(key);
+      if (declar.isVar()) path.scope.getFunctionParent().registerBinding("var", declar);
+    }
+  },
+  Declaration: function Declaration(path) {
+    if (path.isBlockScoped()) return;
+
+    if (path.isExportDeclaration() && path.get("declaration").isDeclaration()) return;
+
+    path.scope.getFunctionParent().registerDeclaration(path);
+  },
+  ReferencedIdentifier: function ReferencedIdentifier(path, state) {
+    state.references.push(path);
+  },
+  ForXStatement: function ForXStatement(path, state) {
+    var left = path.get("left");
+    if (left.isPattern() || left.isIdentifier()) {
+      state.constantViolations.push(left);
+    }
+  },
+
+
+  ExportDeclaration: {
+    exit: function exit(path) {
+      var node = path.node,
+          scope = path.scope;
+
+      var declar = node.declaration;
+      if (t.isClassDeclaration(declar) || t.isFunctionDeclaration(declar)) {
+        var _id = declar.id;
+        if (!_id) return;
+
+        var binding = scope.getBinding(_id.name);
+        if (binding) binding.reference(path);
+      } else if (t.isVariableDeclaration(declar)) {
+        for (var _iterator5 = declar.declarations, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) {
+          var _ref5;
+
+          if (_isArray5) {
+            if (_i5 >= _iterator5.length) break;
+            _ref5 = _iterator5[_i5++];
+          } else {
+            _i5 = _iterator5.next();
+            if (_i5.done) break;
+            _ref5 = _i5.value;
+          }
+
+          var decl = _ref5;
+
+          var ids = t.getBindingIdentifiers(decl);
+          for (var name in ids) {
+            var _binding = scope.getBinding(name);
+            if (_binding) _binding.reference(path);
+          }
+        }
+      }
+    }
+  },
+
+  LabeledStatement: function LabeledStatement(path) {
+    path.scope.getProgramParent().addGlobal(path.node);
+    path.scope.getBlockParent().registerDeclaration(path);
+  },
+  AssignmentExpression: function AssignmentExpression(path, state) {
+    state.assignments.push(path);
+  },
+  UpdateExpression: function UpdateExpression(path, state) {
+    state.constantViolations.push(path.get("argument"));
+  },
+  UnaryExpression: function UnaryExpression(path, state) {
+    if (path.node.operator === "delete") {
+      state.constantViolations.push(path.get("argument"));
+    }
+  },
+  BlockScoped: function BlockScoped(path) {
+    var scope = path.scope;
+    if (scope.path === path) scope = scope.parent;
+    scope.getBlockParent().registerDeclaration(path);
+  },
+  ClassDeclaration: function ClassDeclaration(path) {
+    var id = path.node.id;
+    if (!id) return;
+
+    var name = id.name;
+    path.scope.bindings[name] = path.scope.getBinding(name);
+  },
+  Block: function Block(path) {
+    var paths = path.get("body");
+    for (var _iterator6 = paths, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : (0, _getIterator3.default)(_iterator6);;) {
+      var _ref6;
+
+      if (_isArray6) {
+        if (_i6 >= _iterator6.length) break;
+        _ref6 = _iterator6[_i6++];
+      } else {
+        _i6 = _iterator6.next();
+        if (_i6.done) break;
+        _ref6 = _i6.value;
+      }
+
+      var bodyPath = _ref6;
+
+      if (bodyPath.isFunctionDeclaration()) {
+        path.scope.getBlockParent().registerDeclaration(bodyPath);
+      }
+    }
+  }
+};
+
+var uid = 0;
+
+var Scope = function () {
+  function Scope(path, parentScope) {
+    (0, _classCallCheck3.default)(this, Scope);
+
+    if (parentScope && parentScope.block === path.node) {
+      return parentScope;
+    }
+
+    var cached = getCache(path, parentScope, this);
+    if (cached) return cached;
+
+    this.uid = uid++;
+    this.parent = parentScope;
+    this.hub = path.hub;
+
+    this.parentBlock = path.parent;
+    this.block = path.node;
+    this.path = path;
+
+    this.labels = new _map2.default();
+  }
+
+  Scope.prototype.traverse = function traverse(node, opts, state) {
+    (0, _index2.default)(node, opts, this, state, this.path);
+  };
+
+  Scope.prototype.generateDeclaredUidIdentifier = function generateDeclaredUidIdentifier() {
+    var name = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";
+
+    var id = this.generateUidIdentifier(name);
+    this.push({ id: id });
+    return id;
+  };
+
+  Scope.prototype.generateUidIdentifier = function generateUidIdentifier() {
+    var name = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";
+
+    return t.identifier(this.generateUid(name));
+  };
+
+  Scope.prototype.generateUid = function generateUid() {
+    var name = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";
+
+    name = t.toIdentifier(name).replace(/^_+/, "").replace(/[0-9]+$/g, "");
+
+    var uid = void 0;
+    var i = 0;
+    do {
+      uid = this._generateUid(name, i);
+      i++;
+    } while (this.hasLabel(uid) || this.hasBinding(uid) || this.hasGlobal(uid) || this.hasReference(uid));
+
+    var program = this.getProgramParent();
+    program.references[uid] = true;
+    program.uids[uid] = true;
+
+    return uid;
+  };
+
+  Scope.prototype._generateUid = function _generateUid(name, i) {
+    var id = name;
+    if (i > 1) id += i;
+    return "_" + id;
+  };
+
+  Scope.prototype.generateUidIdentifierBasedOnNode = function generateUidIdentifierBasedOnNode(parent, defaultName) {
+    var node = parent;
+
+    if (t.isAssignmentExpression(parent)) {
+      node = parent.left;
+    } else if (t.isVariableDeclarator(parent)) {
+      node = parent.id;
+    } else if (t.isObjectProperty(node) || t.isObjectMethod(node)) {
+      node = node.key;
+    }
+
+    var parts = [];
+    gatherNodeParts(node, parts);
+
+    var id = parts.join("$");
+    id = id.replace(/^_/, "") || defaultName || "ref";
+
+    return this.generateUidIdentifier(id.slice(0, 20));
+  };
+
+  Scope.prototype.isStatic = function isStatic(node) {
+    if (t.isThisExpression(node) || t.isSuper(node)) {
+      return true;
+    }
+
+    if (t.isIdentifier(node)) {
+      var binding = this.getBinding(node.name);
+      if (binding) {
+        return binding.constant;
+      } else {
+        return this.hasBinding(node.name);
+      }
+    }
+
+    return false;
+  };
+
+  Scope.prototype.maybeGenerateMemoised = function maybeGenerateMemoised(node, dontPush) {
+    if (this.isStatic(node)) {
+      return null;
+    } else {
+      var _id2 = this.generateUidIdentifierBasedOnNode(node);
+      if (!dontPush) this.push({ id: _id2 });
+      return _id2;
+    }
+  };
+
+  Scope.prototype.checkBlockScopedCollisions = function checkBlockScopedCollisions(local, kind, name, id) {
+    if (kind === "param") return;
+
+    if (kind === "hoisted" && local.kind === "let") return;
+
+    var duplicate = kind === "let" || local.kind === "let" || local.kind === "const" || local.kind === "module" || local.kind === "param" && (kind === "let" || kind === "const");
+
+    if (duplicate) {
+      throw this.hub.file.buildCodeFrameError(id, messages.get("scopeDuplicateDeclaration", name), TypeError);
+    }
+  };
+
+  Scope.prototype.rename = function rename(oldName, newName, block) {
+    var binding = this.getBinding(oldName);
+    if (binding) {
+      newName = newName || this.generateUidIdentifier(oldName).name;
+      return new _renamer2.default(binding, oldName, newName).rename(block);
+    }
+  };
+
+  Scope.prototype._renameFromMap = function _renameFromMap(map, oldName, newName, value) {
+    if (map[oldName]) {
+      map[newName] = value;
+      map[oldName] = null;
+    }
+  };
+
+  Scope.prototype.dump = function dump() {
+    var sep = (0, _repeat2.default)("-", 60);
+    console.log(sep);
+    var scope = this;
+    do {
+      console.log("#", scope.block.type);
+      for (var name in scope.bindings) {
+        var binding = scope.bindings[name];
+        console.log(" -", name, {
+          constant: binding.constant,
+          references: binding.references,
+          violations: binding.constantViolations.length,
+          kind: binding.kind
+        });
+      }
+    } while (scope = scope.parent);
+    console.log(sep);
+  };
+
+  Scope.prototype.toArray = function toArray(node, i) {
+    var file = this.hub.file;
+
+    if (t.isIdentifier(node)) {
+      var binding = this.getBinding(node.name);
+      if (binding && binding.constant && binding.path.isGenericType("Array")) return node;
+    }
+
+    if (t.isArrayExpression(node)) {
+      return node;
+    }
+
+    if (t.isIdentifier(node, { name: "arguments" })) {
+      return t.callExpression(t.memberExpression(t.memberExpression(t.memberExpression(t.identifier("Array"), t.identifier("prototype")), t.identifier("slice")), t.identifier("call")), [node]);
+    }
+
+    var helperName = "toArray";
+    var args = [node];
+    if (i === true) {
+      helperName = "toConsumableArray";
+    } else if (i) {
+      args.push(t.numericLiteral(i));
+      helperName = "slicedToArray";
+    }
+    return t.callExpression(file.addHelper(helperName), args);
+  };
+
+  Scope.prototype.hasLabel = function hasLabel(name) {
+    return !!this.getLabel(name);
+  };
+
+  Scope.prototype.getLabel = function getLabel(name) {
+    return this.labels.get(name);
+  };
+
+  Scope.prototype.registerLabel = function registerLabel(path) {
+    this.labels.set(path.node.label.name, path);
+  };
+
+  Scope.prototype.registerDeclaration = function registerDeclaration(path) {
+    if (path.isLabeledStatement()) {
+      this.registerLabel(path);
+    } else if (path.isFunctionDeclaration()) {
+      this.registerBinding("hoisted", path.get("id"), path);
+    } else if (path.isVariableDeclaration()) {
+      var declarations = path.get("declarations");
+      for (var _iterator7 = declarations, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : (0, _getIterator3.default)(_iterator7);;) {
+        var _ref7;
+
+        if (_isArray7) {
+          if (_i7 >= _iterator7.length) break;
+          _ref7 = _iterator7[_i7++];
+        } else {
+          _i7 = _iterator7.next();
+          if (_i7.done) break;
+          _ref7 = _i7.value;
+        }
+
+        var declar = _ref7;
+
+        this.registerBinding(path.node.kind, declar);
+      }
+    } else if (path.isClassDeclaration()) {
+      this.registerBinding("let", path);
+    } else if (path.isImportDeclaration()) {
+      var specifiers = path.get("specifiers");
+      for (var _iterator8 = specifiers, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : (0, _getIterator3.default)(_iterator8);;) {
+        var _ref8;
+
+        if (_isArray8) {
+          if (_i8 >= _iterator8.length) break;
+          _ref8 = _iterator8[_i8++];
+        } else {
+          _i8 = _iterator8.next();
+          if (_i8.done) break;
+          _ref8 = _i8.value;
+        }
+
+        var specifier = _ref8;
+
+        this.registerBinding("module", specifier);
+      }
+    } else if (path.isExportDeclaration()) {
+      var _declar = path.get("declaration");
+      if (_declar.isClassDeclaration() || _declar.isFunctionDeclaration() || _declar.isVariableDeclaration()) {
+        this.registerDeclaration(_declar);
+      }
+    } else {
+      this.registerBinding("unknown", path);
+    }
+  };
+
+  Scope.prototype.buildUndefinedNode = function buildUndefinedNode() {
+    if (this.hasBinding("undefined")) {
+      return t.unaryExpression("void", t.numericLiteral(0), true);
+    } else {
+      return t.identifier("undefined");
+    }
+  };
+
+  Scope.prototype.registerConstantViolation = function registerConstantViolation(path) {
+    var ids = path.getBindingIdentifiers();
+    for (var name in ids) {
+      var binding = this.getBinding(name);
+      if (binding) binding.reassign(path);
+    }
+  };
+
+  Scope.prototype.registerBinding = function registerBinding(kind, path) {
+    var bindingPath = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : path;
+
+    if (!kind) throw new ReferenceError("no `kind`");
+
+    if (path.isVariableDeclaration()) {
+      var declarators = path.get("declarations");
+      for (var _iterator9 = declarators, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : (0, _getIterator3.default)(_iterator9);;) {
+        var _ref9;
+
+        if (_isArray9) {
+          if (_i9 >= _iterator9.length) break;
+          _ref9 = _iterator9[_i9++];
+        } else {
+          _i9 = _iterator9.next();
+          if (_i9.done) break;
+          _ref9 = _i9.value;
+        }
+
+        var declar = _ref9;
+
+        this.registerBinding(kind, declar);
+      }
+      return;
+    }
+
+    var parent = this.getProgramParent();
+    var ids = path.getBindingIdentifiers(true);
+
+    for (var name in ids) {
+      for (var _iterator10 = ids[name], _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : (0, _getIterator3.default)(_iterator10);;) {
+        var _ref10;
+
+        if (_isArray10) {
+          if (_i10 >= _iterator10.length) break;
+          _ref10 = _iterator10[_i10++];
+        } else {
+          _i10 = _iterator10.next();
+          if (_i10.done) break;
+          _ref10 = _i10.value;
+        }
+
+        var _id3 = _ref10;
+
+        var local = this.getOwnBinding(name);
+        if (local) {
+          if (local.identifier === _id3) continue;
+
+          this.checkBlockScopedCollisions(local, kind, name, _id3);
+        }
+
+        if (local && local.path.isFlow()) local = null;
+
+        parent.references[name] = true;
+
+        this.bindings[name] = new _binding3.default({
+          identifier: _id3,
+          existing: local,
+          scope: this,
+          path: bindingPath,
+          kind: kind
+        });
+      }
+    }
+  };
+
+  Scope.prototype.addGlobal = function addGlobal(node) {
+    this.globals[node.name] = node;
+  };
+
+  Scope.prototype.hasUid = function hasUid(name) {
+    var scope = this;
+
+    do {
+      if (scope.uids[name]) return true;
+    } while (scope = scope.parent);
+
+    return false;
+  };
+
+  Scope.prototype.hasGlobal = function hasGlobal(name) {
+    var scope = this;
+
+    do {
+      if (scope.globals[name]) return true;
+    } while (scope = scope.parent);
+
+    return false;
+  };
+
+  Scope.prototype.hasReference = function hasReference(name) {
+    var scope = this;
+
+    do {
+      if (scope.references[name]) return true;
+    } while (scope = scope.parent);
+
+    return false;
+  };
+
+  Scope.prototype.isPure = function isPure(node, constantsOnly) {
+    if (t.isIdentifier(node)) {
+      var binding = this.getBinding(node.name);
+      if (!binding) return false;
+      if (constantsOnly) return binding.constant;
+      return true;
+    } else if (t.isClass(node)) {
+      if (node.superClass && !this.isPure(node.superClass, constantsOnly)) return false;
+      return this.isPure(node.body, constantsOnly);
+    } else if (t.isClassBody(node)) {
+      for (var _iterator11 = node.body, _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : (0, _getIterator3.default)(_iterator11);;) {
+        var _ref11;
+
+        if (_isArray11) {
+          if (_i11 >= _iterator11.length) break;
+          _ref11 = _iterator11[_i11++];
+        } else {
+          _i11 = _iterator11.next();
+          if (_i11.done) break;
+          _ref11 = _i11.value;
+        }
+
+        var method = _ref11;
+
+        if (!this.isPure(method, constantsOnly)) return false;
+      }
+      return true;
+    } else if (t.isBinary(node)) {
+      return this.isPure(node.left, constantsOnly) && this.isPure(node.right, constantsOnly);
+    } else if (t.isArrayExpression(node)) {
+      for (var _iterator12 = node.elements, _isArray12 = Array.isArray(_iterator12), _i12 = 0, _iterator12 = _isArray12 ? _iterator12 : (0, _getIterator3.default)(_iterator12);;) {
+        var _ref12;
+
+        if (_isArray12) {
+          if (_i12 >= _iterator12.length) break;
+          _ref12 = _iterator12[_i12++];
+        } else {
+          _i12 = _iterator12.next();
+          if (_i12.done) break;
+          _ref12 = _i12.value;
+        }
+
+        var elem = _ref12;
+
+        if (!this.isPure(elem, constantsOnly)) return false;
+      }
+      return true;
+    } else if (t.isObjectExpression(node)) {
+      for (var _iterator13 = node.properties, _isArray13 = Array.isArray(_iterator13), _i13 = 0, _iterator13 = _isArray13 ? _iterator13 : (0, _getIterator3.default)(_iterator13);;) {
+        var _ref13;
+
+        if (_isArray13) {
+          if (_i13 >= _iterator13.length) break;
+          _ref13 = _iterator13[_i13++];
+        } else {
+          _i13 = _iterator13.next();
+          if (_i13.done) break;
+          _ref13 = _i13.value;
+        }
+
+        var prop = _ref13;
+
+        if (!this.isPure(prop, constantsOnly)) return false;
+      }
+      return true;
+    } else if (t.isClassMethod(node)) {
+      if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
+      if (node.kind === "get" || node.kind === "set") return false;
+      return true;
+    } else if (t.isClassProperty(node) || t.isObjectProperty(node)) {
+      if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
+      return this.isPure(node.value, constantsOnly);
+    } else if (t.isUnaryExpression(node)) {
+      return this.isPure(node.argument, constantsOnly);
+    } else {
+      return t.isPureish(node);
+    }
+  };
+
+  Scope.prototype.setData = function setData(key, val) {
+    return this.data[key] = val;
+  };
+
+  Scope.prototype.getData = function getData(key) {
+    var scope = this;
+    do {
+      var data = scope.data[key];
+      if (data != null) return data;
+    } while (scope = scope.parent);
+  };
+
+  Scope.prototype.removeData = function removeData(key) {
+    var scope = this;
+    do {
+      var data = scope.data[key];
+      if (data != null) scope.data[key] = null;
+    } while (scope = scope.parent);
+  };
+
+  Scope.prototype.init = function init() {
+    if (!this.references) this.crawl();
+  };
+
+  Scope.prototype.crawl = function crawl() {
+    _crawlCallsCount++;
+    this._crawl();
+    _crawlCallsCount--;
+  };
+
+  Scope.prototype._crawl = function _crawl() {
+    var path = this.path;
+
+    this.references = (0, _create2.default)(null);
+    this.bindings = (0, _create2.default)(null);
+    this.globals = (0, _create2.default)(null);
+    this.uids = (0, _create2.default)(null);
+    this.data = (0, _create2.default)(null);
+
+    if (path.isLoop()) {
+      for (var _iterator14 = t.FOR_INIT_KEYS, _isArray14 = Array.isArray(_iterator14), _i14 = 0, _iterator14 = _isArray14 ? _iterator14 : (0, _getIterator3.default)(_iterator14);;) {
+        var _ref14;
+
+        if (_isArray14) {
+          if (_i14 >= _iterator14.length) break;
+          _ref14 = _iterator14[_i14++];
+        } else {
+          _i14 = _iterator14.next();
+          if (_i14.done) break;
+          _ref14 = _i14.value;
+        }
+
+        var key = _ref14;
+
+        var node = path.get(key);
+        if (node.isBlockScoped()) this.registerBinding(node.node.kind, node);
+      }
+    }
+
+    if (path.isFunctionExpression() && path.has("id")) {
+      if (!path.get("id").node[t.NOT_LOCAL_BINDING]) {
+        this.registerBinding("local", path.get("id"), path);
+      }
+    }
+
+    if (path.isClassExpression() && path.has("id")) {
+      if (!path.get("id").node[t.NOT_LOCAL_BINDING]) {
+        this.registerBinding("local", path);
+      }
+    }
+
+    if (path.isFunction()) {
+      var params = path.get("params");
+      for (var _iterator15 = params, _isArray15 = Array.isArray(_iterator15), _i15 = 0, _iterator15 = _isArray15 ? _iterator15 : (0, _getIterator3.default)(_iterator15);;) {
+        var _ref15;
+
+        if (_isArray15) {
+          if (_i15 >= _iterator15.length) break;
+          _ref15 = _iterator15[_i15++];
+        } else {
+          _i15 = _iterator15.next();
+          if (_i15.done) break;
+          _ref15 = _i15.value;
+        }
+
+        var param = _ref15;
+
+        this.registerBinding("param", param);
+      }
+    }
+
+    if (path.isCatchClause()) {
+      this.registerBinding("let", path);
+    }
+
+    var parent = this.getProgramParent();
+    if (parent.crawling) return;
+
+    var state = {
+      references: [],
+      constantViolations: [],
+      assignments: []
+    };
+
+    this.crawling = true;
+    path.traverse(collectorVisitor, state);
+    this.crawling = false;
+
+    for (var _iterator16 = state.assignments, _isArray16 = Array.isArray(_iterator16), _i16 = 0, _iterator16 = _isArray16 ? _iterator16 : (0, _getIterator3.default)(_iterator16);;) {
+      var _ref16;
+
+      if (_isArray16) {
+        if (_i16 >= _iterator16.length) break;
+        _ref16 = _iterator16[_i16++];
+      } else {
+        _i16 = _iterator16.next();
+        if (_i16.done) break;
+        _ref16 = _i16.value;
+      }
+
+      var _path = _ref16;
+
+      var ids = _path.getBindingIdentifiers();
+      var programParent = void 0;
+      for (var name in ids) {
+        if (_path.scope.getBinding(name)) continue;
+
+        programParent = programParent || _path.scope.getProgramParent();
+        programParent.addGlobal(ids[name]);
+      }
+
+      _path.scope.registerConstantViolation(_path);
+    }
+
+    for (var _iterator17 = state.references, _isArray17 = Array.isArray(_iterator17), _i17 = 0, _iterator17 = _isArray17 ? _iterator17 : (0, _getIterator3.default)(_iterator17);;) {
+      var _ref17;
+
+      if (_isArray17) {
+        if (_i17 >= _iterator17.length) break;
+        _ref17 = _iterator17[_i17++];
+      } else {
+        _i17 = _iterator17.next();
+        if (_i17.done) break;
+        _ref17 = _i17.value;
+      }
+
+      var ref = _ref17;
+
+      var binding = ref.scope.getBinding(ref.node.name);
+      if (binding) {
+        binding.reference(ref);
+      } else {
+        ref.scope.getProgramParent().addGlobal(ref.node);
+      }
+    }
+
+    for (var _iterator18 = state.constantViolations, _isArray18 = Array.isArray(_iterator18), _i18 = 0, _iterator18 = _isArray18 ? _iterator18 : (0, _getIterator3.default)(_iterator18);;) {
+      var _ref18;
+
+      if (_isArray18) {
+        if (_i18 >= _iterator18.length) break;
+        _ref18 = _iterator18[_i18++];
+      } else {
+        _i18 = _iterator18.next();
+        if (_i18.done) break;
+        _ref18 = _i18.value;
+      }
+
+      var _path2 = _ref18;
+
+      _path2.scope.registerConstantViolation(_path2);
+    }
+  };
+
+  Scope.prototype.push = function push(opts) {
+    var path = this.path;
+
+    if (!path.isBlockStatement() && !path.isProgram()) {
+      path = this.getBlockParent().path;
+    }
+
+    if (path.isSwitchStatement()) {
+      path = this.getFunctionParent().path;
+    }
+
+    if (path.isLoop() || path.isCatchClause() || path.isFunction()) {
+      t.ensureBlock(path.node);
+      path = path.get("body");
+    }
+
+    var unique = opts.unique;
+    var kind = opts.kind || "var";
+    var blockHoist = opts._blockHoist == null ? 2 : opts._blockHoist;
+
+    var dataKey = "declaration:" + kind + ":" + blockHoist;
+    var declarPath = !unique && path.getData(dataKey);
+
+    if (!declarPath) {
+      var declar = t.variableDeclaration(kind, []);
+      declar._generated = true;
+      declar._blockHoist = blockHoist;
+
+      var _path$unshiftContaine = path.unshiftContainer("body", [declar]);
+
+      declarPath = _path$unshiftContaine[0];
+
+      if (!unique) path.setData(dataKey, declarPath);
+    }
+
+    var declarator = t.variableDeclarator(opts.id, opts.init);
+    declarPath.node.declarations.push(declarator);
+    this.registerBinding(kind, declarPath.get("declarations").pop());
+  };
+
+  Scope.prototype.getProgramParent = function getProgramParent() {
+    var scope = this;
+    do {
+      if (scope.path.isProgram()) {
+        return scope;
+      }
+    } while (scope = scope.parent);
+    throw new Error("We couldn't find a Function or Program...");
+  };
+
+  Scope.prototype.getFunctionParent = function getFunctionParent() {
+    var scope = this;
+    do {
+      if (scope.path.isFunctionParent()) {
+        return scope;
+      }
+    } while (scope = scope.parent);
+    throw new Error("We couldn't find a Function or Program...");
+  };
+
+  Scope.prototype.getBlockParent = function getBlockParent() {
+    var scope = this;
+    do {
+      if (scope.path.isBlockParent()) {
+        return scope;
+      }
+    } while (scope = scope.parent);
+    throw new Error("We couldn't find a BlockStatement, For, Switch, Function, Loop or Program...");
+  };
+
+  Scope.prototype.getAllBindings = function getAllBindings() {
+    var ids = (0, _create2.default)(null);
+
+    var scope = this;
+    do {
+      (0, _defaults2.default)(ids, scope.bindings);
+      scope = scope.parent;
+    } while (scope);
+
+    return ids;
+  };
+
+  Scope.prototype.getAllBindingsOfKind = function getAllBindingsOfKind() {
+    var ids = (0, _create2.default)(null);
+
+    for (var _iterator19 = arguments, _isArray19 = Array.isArray(_iterator19), _i19 = 0, _iterator19 = _isArray19 ? _iterator19 : (0, _getIterator3.default)(_iterator19);;) {
+      var _ref19;
+
+      if (_isArray19) {
+        if (_i19 >= _iterator19.length) break;
+        _ref19 = _iterator19[_i19++];
+      } else {
+        _i19 = _iterator19.next();
+        if (_i19.done) break;
+        _ref19 = _i19.value;
+      }
+
+      var kind = _ref19;
+
+      var scope = this;
+      do {
+        for (var name in scope.bindings) {
+          var binding = scope.bindings[name];
+          if (binding.kind === kind) ids[name] = binding;
+        }
+        scope = scope.parent;
+      } while (scope);
+    }
+
+    return ids;
+  };
+
+  Scope.prototype.bindingIdentifierEquals = function bindingIdentifierEquals(name, node) {
+    return this.getBindingIdentifier(name) === node;
+  };
+
+  Scope.prototype.warnOnFlowBinding = function warnOnFlowBinding(binding) {
+    if (_crawlCallsCount === 0 && binding && binding.path.isFlow()) {
+      console.warn("\n        You or one of the Babel plugins you are using are using Flow declarations as bindings.\n        Support for this will be removed in version 6.8. To find out the caller, grep for this\n        message and change it to a `console.trace()`.\n      ");
+    }
+    return binding;
+  };
+
+  Scope.prototype.getBinding = function getBinding(name) {
+    var scope = this;
+
+    do {
+      var binding = scope.getOwnBinding(name);
+      if (binding) return this.warnOnFlowBinding(binding);
+    } while (scope = scope.parent);
+  };
+
+  Scope.prototype.getOwnBinding = function getOwnBinding(name) {
+    return this.warnOnFlowBinding(this.bindings[name]);
+  };
+
+  Scope.prototype.getBindingIdentifier = function getBindingIdentifier(name) {
+    var info = this.getBinding(name);
+    return info && info.identifier;
+  };
+
+  Scope.prototype.getOwnBindingIdentifier = function getOwnBindingIdentifier(name) {
+    var binding = this.bindings[name];
+    return binding && binding.identifier;
+  };
+
+  Scope.prototype.hasOwnBinding = function hasOwnBinding(name) {
+    return !!this.getOwnBinding(name);
+  };
+
+  Scope.prototype.hasBinding = function hasBinding(name, noGlobals) {
+    if (!name) return false;
+    if (this.hasOwnBinding(name)) return true;
+    if (this.parentHasBinding(name, noGlobals)) return true;
+    if (this.hasUid(name)) return true;
+    if (!noGlobals && (0, _includes2.default)(Scope.globals, name)) return true;
+    if (!noGlobals && (0, _includes2.default)(Scope.contextVariables, name)) return true;
+    return false;
+  };
+
+  Scope.prototype.parentHasBinding = function parentHasBinding(name, noGlobals) {
+    return this.parent && this.parent.hasBinding(name, noGlobals);
+  };
+
+  Scope.prototype.moveBindingTo = function moveBindingTo(name, scope) {
+    var info = this.getBinding(name);
+    if (info) {
+      info.scope.removeOwnBinding(name);
+      info.scope = scope;
+      scope.bindings[name] = info;
+    }
+  };
+
+  Scope.prototype.removeOwnBinding = function removeOwnBinding(name) {
+    delete this.bindings[name];
+  };
+
+  Scope.prototype.removeBinding = function removeBinding(name) {
+    var info = this.getBinding(name);
+    if (info) {
+      info.scope.removeOwnBinding(name);
+    }
+
+    var scope = this;
+    do {
+      if (scope.uids[name]) {
+        scope.uids[name] = false;
+      }
+    } while (scope = scope.parent);
+  };
+
+  return Scope;
+}();
+
+Scope.globals = (0, _keys2.default)(_globals2.default.builtin);
+Scope.contextVariables = ["arguments", "undefined", "Infinity", "NaN"];
+exports.default = Scope;
+module.exports = exports["default"];
+
+/***/ }),
+/* 58 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+exports.NOT_LOCAL_BINDING = exports.BLOCK_SCOPED_SYMBOL = exports.INHERIT_KEYS = exports.UNARY_OPERATORS = exports.STRING_UNARY_OPERATORS = exports.NUMBER_UNARY_OPERATORS = exports.BOOLEAN_UNARY_OPERATORS = exports.BINARY_OPERATORS = exports.NUMBER_BINARY_OPERATORS = exports.BOOLEAN_BINARY_OPERATORS = exports.COMPARISON_BINARY_OPERATORS = exports.EQUALITY_BINARY_OPERATORS = exports.BOOLEAN_NUMBER_BINARY_OPERATORS = exports.UPDATE_OPERATORS = exports.LOGICAL_OPERATORS = exports.COMMENT_KEYS = exports.FOR_INIT_KEYS = exports.FLATTENABLE_KEYS = exports.STATEMENT_OR_BLOCK_KEYS = undefined;
+
+var _for = __webpack_require__(149);
+
+var _for2 = _interopRequireDefault(_for);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var STATEMENT_OR_BLOCK_KEYS = exports.STATEMENT_OR_BLOCK_KEYS = ["consequent", "body", "alternate"];
+var FLATTENABLE_KEYS = exports.FLATTENABLE_KEYS = ["body", "expressions"];
+var FOR_INIT_KEYS = exports.FOR_INIT_KEYS = ["left", "init"];
+var COMMENT_KEYS = exports.COMMENT_KEYS = ["leadingComments", "trailingComments", "innerComments"];
+
+var LOGICAL_OPERATORS = exports.LOGICAL_OPERATORS = ["||", "&&"];
+var UPDATE_OPERATORS = exports.UPDATE_OPERATORS = ["++", "--"];
+
+var BOOLEAN_NUMBER_BINARY_OPERATORS = exports.BOOLEAN_NUMBER_BINARY_OPERATORS = [">", "<", ">=", "<="];
+var EQUALITY_BINARY_OPERATORS = exports.EQUALITY_BINARY_OPERATORS = ["==", "===", "!=", "!=="];
+var COMPARISON_BINARY_OPERATORS = exports.COMPARISON_BINARY_OPERATORS = [].concat(EQUALITY_BINARY_OPERATORS, ["in", "instanceof"]);
+var BOOLEAN_BINARY_OPERATORS = exports.BOOLEAN_BINARY_OPERATORS = [].concat(COMPARISON_BINARY_OPERATORS, BOOLEAN_NUMBER_BINARY_OPERATORS);
+var NUMBER_BINARY_OPERATORS = exports.NUMBER_BINARY_OPERATORS = ["-", "/", "%", "*", "**", "&", "|", ">>", ">>>", "<<", "^"];
+var BINARY_OPERATORS = exports.BINARY_OPERATORS = ["+"].concat(NUMBER_BINARY_OPERATORS, BOOLEAN_BINARY_OPERATORS);
+
+var BOOLEAN_UNARY_OPERATORS = exports.BOOLEAN_UNARY_OPERATORS = ["delete", "!"];
+var NUMBER_UNARY_OPERATORS = exports.NUMBER_UNARY_OPERATORS = ["+", "-", "++", "--", "~"];
+var STRING_UNARY_OPERATORS = exports.STRING_UNARY_OPERATORS = ["typeof"];
+var UNARY_OPERATORS = exports.UNARY_OPERATORS = ["void"].concat(BOOLEAN_UNARY_OPERATORS, NUMBER_UNARY_OPERATORS, STRING_UNARY_OPERATORS);
+
+var INHERIT_KEYS = exports.INHERIT_KEYS = {
+  optional: ["typeAnnotation", "typeParameters", "returnType"],
+  force: ["start", "loc", "end"]
+};
+
+var BLOCK_SCOPED_SYMBOL = exports.BLOCK_SCOPED_SYMBOL = (0, _for2.default)("var used to be block scoped");
+var NOT_LOCAL_BINDING = exports.NOT_LOCAL_BINDING = (0, _for2.default)("should not be considered a local binding");
+
+/***/ }),
+/* 59 */
+/***/ (function(module, exports) {
+
+module.exports = function(it, Constructor, name, forbiddenField){
+  if(!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)){
+    throw TypeError(name + ': incorrect invocation!');
+  } return it;
+};
+
+/***/ }),
+/* 60 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// 0 -> Array#forEach
+// 1 -> Array#map
+// 2 -> Array#filter
+// 3 -> Array#some
+// 4 -> Array#every
+// 5 -> Array#find
+// 6 -> Array#findIndex
+var ctx      = __webpack_require__(35)
+  , IObject  = __webpack_require__(63)
+  , toObject = __webpack_require__(42)
+  , toLength = __webpack_require__(72)
+  , asc      = __webpack_require__(200);
+module.exports = function(TYPE, $create){
+  var IS_MAP        = TYPE == 1
+    , IS_FILTER     = TYPE == 2
+    , IS_SOME       = TYPE == 3
+    , IS_EVERY      = TYPE == 4
+    , IS_FIND_INDEX = TYPE == 6
+    , NO_HOLES      = TYPE == 5 || IS_FIND_INDEX
+    , create        = $create || asc;
+  return function($this, callbackfn, that){
+    var O      = toObject($this)
+      , self   = IObject(O)
+      , f      = ctx(callbackfn, that, 3)
+      , length = toLength(self.length)
+      , index  = 0
+      , result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined
+      , val, res;
+    for(;length > index; index++)if(NO_HOLES || index in self){
+      val = self[index];
+      res = f(val, index, O);
+      if(TYPE){
+        if(IS_MAP)result[index] = res;            // map
+        else if(res)switch(TYPE){
+          case 3: return true;                    // some
+          case 5: return val;                     // find
+          case 6: return index;                   // findIndex
+          case 2: result.push(val);               // filter
+        } else if(IS_EVERY)return false;          // every
+      }
+    }
+    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
+  };
+};
+
+/***/ }),
+/* 61 */
+/***/ (function(module, exports) {
+
+var toString = {}.toString;
+
+module.exports = function(it){
+  return toString.call(it).slice(8, -1);
+};
+
+/***/ }),
+/* 62 */
+/***/ (function(module, exports) {
+
+// IE 8- don't enum bug keys
+module.exports = (
+  'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
+).split(',');
+
+/***/ }),
+/* 63 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// fallback for non-array-like ES3 and non-enumerable old V8 strings
+var cof = __webpack_require__(61);
+module.exports = Object('z').propertyIsEnumerable(0) ? Object : function(it){
+  return cof(it) == 'String' ? it.split('') : Object(it);
+};
+
+/***/ }),
+/* 64 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+var LIBRARY        = __webpack_require__(65)
+  , $export        = __webpack_require__(17)
+  , redefine       = __webpack_require__(68)
+  , hide           = __webpack_require__(11)
+  , has            = __webpack_require__(10)
+  , Iterators      = __webpack_require__(28)
+  , $iterCreate    = __webpack_require__(208)
+  , setToStringTag = __webpack_require__(41)
+  , getPrototypeOf = __webpack_require__(214)
+  , ITERATOR       = __webpack_require__(3)('iterator')
+  , BUGGY          = !([].keys && 'next' in [].keys()) // Safari has buggy iterators w/o `next`
+  , FF_ITERATOR    = '@@iterator'
+  , KEYS           = 'keys'
+  , VALUES         = 'values';
+
+var returnThis = function(){ return this; };
+
+module.exports = function(Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED){
+  $iterCreate(Constructor, NAME, next);
+  var getMethod = function(kind){
+    if(!BUGGY && kind in proto)return proto[kind];
+    switch(kind){
+      case KEYS: return function keys(){ return new Constructor(this, kind); };
+      case VALUES: return function values(){ return new Constructor(this, kind); };
+    } return function entries(){ return new Constructor(this, kind); };
+  };
+  var TAG        = NAME + ' Iterator'
+    , DEF_VALUES = DEFAULT == VALUES
+    , VALUES_BUG = false
+    , proto      = Base.prototype
+    , $native    = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT]
+    , $default   = $native || getMethod(DEFAULT)
+    , $entries   = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined
+    , $anyNative = NAME == 'Array' ? proto.entries || $native : $native
+    , methods, key, IteratorPrototype;
+  // Fix native
+  if($anyNative){
+    IteratorPrototype = getPrototypeOf($anyNative.call(new Base));
+    if(IteratorPrototype !== Object.prototype){
+      // Set @@toStringTag to native iterators
+      setToStringTag(IteratorPrototype, TAG, true);
+      // fix for some old engines
+      if(!LIBRARY && !has(IteratorPrototype, ITERATOR))hide(IteratorPrototype, ITERATOR, returnThis);
+    }
+  }
+  // fix Array#{values, @@iterator}.name in V8 / FF
+  if(DEF_VALUES && $native && $native.name !== VALUES){
+    VALUES_BUG = true;
+    $default = function values(){ return $native.call(this); };
+  }
+  // Define iterator
+  if((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])){
+    hide(proto, ITERATOR, $default);
+  }
+  // Plug for library
+  Iterators[NAME] = $default;
+  Iterators[TAG]  = returnThis;
+  if(DEFAULT){
+    methods = {
+      values:  DEF_VALUES ? $default : getMethod(VALUES),
+      keys:    IS_SET     ? $default : getMethod(KEYS),
+      entries: $entries
+    };
+    if(FORCED)for(key in methods){
+      if(!(key in proto))redefine(proto, key, methods[key]);
+    } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
+  }
+  return methods;
+};
+
+/***/ }),
+/* 65 */
+/***/ (function(module, exports) {
+
+module.exports = true;
+
+/***/ }),
+/* 66 */
+/***/ (function(module, exports) {
+
+exports.f = Object.getOwnPropertySymbols;
+
+/***/ }),
+/* 67 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var hide = __webpack_require__(11);
+module.exports = function(target, src, safe){
+  for(var key in src){
+    if(safe && target[key])target[key] = src[key];
+    else hide(target, key, src[key]);
+  } return target;
+};
+
+/***/ }),
+/* 68 */
+/***/ (function(module, exports, __webpack_require__) {
+
+module.exports = __webpack_require__(11);
+
+/***/ }),
+/* 69 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var shared = __webpack_require__(70)('keys')
+  , uid    = __webpack_require__(43);
+module.exports = function(key){
+  return shared[key] || (shared[key] = uid(key));
+};
+
+/***/ }),
+/* 70 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var global = __webpack_require__(4)
+  , SHARED = '__core-js_shared__'
+  , store  = global[SHARED] || (global[SHARED] = {});
+module.exports = function(key){
+  return store[key] || (store[key] = {});
+};
+
+/***/ }),
+/* 71 */
+/***/ (function(module, exports) {
+
+// 7.1.4 ToInteger
+var ceil  = Math.ceil
+  , floor = Math.floor;
+module.exports = function(it){
+  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
+};
+
+/***/ }),
+/* 72 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// 7.1.15 ToLength
+var toInteger = __webpack_require__(71)
+  , min       = Math.min;
+module.exports = function(it){
+  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
+};
+
+/***/ }),
+/* 73 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// 7.1.1 ToPrimitive(input [, PreferredType])
+var isObject = __webpack_require__(12);
+// instead of the ES6 spec version, we didn't implement @@toPrimitive case
+// and the second argument - flag - preferred type is a string
+module.exports = function(it, S){
+  if(!isObject(it))return it;
+  var fn, val;
+  if(S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it)))return val;
+  if(typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it)))return val;
+  if(!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it)))return val;
+  throw TypeError("Can't convert object to primitive value");
+};
+
+/***/ }),
+/* 74 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var global         = __webpack_require__(4)
+  , core           = __webpack_require__(2)
+  , LIBRARY        = __webpack_require__(65)
+  , wksExt         = __webpack_require__(75)
+  , defineProperty = __webpack_require__(7).f;
+module.exports = function(name){
+  var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
+  if(name.charAt(0) != '_' && !(name in $Symbol))defineProperty($Symbol, name, {value: wksExt.f(name)});
+};
+
+/***/ }),
+/* 75 */
+/***/ (function(module, exports, __webpack_require__) {
+
+exports.f = __webpack_require__(3);
+
+/***/ }),
+/* 76 */
+/***/ (function(module, exports) {
+
+
+
+/***/ }),
+/* 77 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+var $at  = __webpack_require__(217)(true);
+
+// 21.1.3.27 String.prototype[@@iterator]()
+__webpack_require__(64)(String, 'String', function(iterated){
+  this._t = String(iterated); // target
+  this._i = 0;                // next index
+// 21.1.5.2.1 %StringIteratorPrototype%.next()
+}, function(){
+  var O     = this._t
+    , index = this._i
+    , point;
+  if(index >= O.length)return {value: undefined, done: true};
+  point = $at(O, index);
+  this._i += point.length;
+  return {value: point, done: false};
+});
+
+/***/ }),
+/* 78 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+// ECMAScript 6 symbols shim
+var global         = __webpack_require__(4)
+  , has            = __webpack_require__(10)
+  , DESCRIPTORS    = __webpack_require__(6)
+  , $export        = __webpack_require__(17)
+  , redefine       = __webpack_require__(68)
+  , META           = __webpack_require__(29).KEY
+  , $fails         = __webpack_require__(18)
+  , shared         = __webpack_require__(70)
+  , setToStringTag = __webpack_require__(41)
+  , uid            = __webpack_require__(43)
+  , wks            = __webpack_require__(3)
+  , wksExt         = __webpack_require__(75)
+  , wksDefine      = __webpack_require__(74)
+  , keyOf          = __webpack_require__(209)
+  , enumKeys       = __webpack_require__(204)
+  , isArray        = __webpack_require__(103)
+  , anObject       = __webpack_require__(9)
+  , toIObject      = __webpack_require__(19)
+  , toPrimitive    = __webpack_require__(73)
+  , createDesc     = __webpack_require__(40)
+  , _create        = __webpack_require__(38)
+  , gOPNExt        = __webpack_require__(213)
+  , $GOPD          = __webpack_require__(212)
+  , $DP            = __webpack_require__(7)
+  , $keys          = __webpack_require__(23)
+  , gOPD           = $GOPD.f
+  , dP             = $DP.f
+  , gOPN           = gOPNExt.f
+  , $Symbol        = global.Symbol
+  , $JSON          = global.JSON
+  , _stringify     = $JSON && $JSON.stringify
+  , PROTOTYPE      = 'prototype'
+  , HIDDEN         = wks('_hidden')
+  , TO_PRIMITIVE   = wks('toPrimitive')
+  , isEnum         = {}.propertyIsEnumerable
+  , SymbolRegistry = shared('symbol-registry')
+  , AllSymbols     = shared('symbols')
+  , OPSymbols      = shared('op-symbols')
+  , ObjectProto    = Object[PROTOTYPE]
+  , USE_NATIVE     = typeof $Symbol == 'function'
+  , QObject        = global.QObject;
+// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
+var setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;
+
+// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
+var setSymbolDesc = DESCRIPTORS && $fails(function(){
+  return _create(dP({}, 'a', {
+    get: function(){ return dP(this, 'a', {value: 7}).a; }
+  })).a != 7;
+}) ? function(it, key, D){
+  var protoDesc = gOPD(ObjectProto, key);
+  if(protoDesc)delete ObjectProto[key];
+  dP(it, key, D);
+  if(protoDesc && it !== ObjectProto)dP(ObjectProto, key, protoDesc);
+} : dP;
+
+var wrap = function(tag){
+  var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);
+  sym._k = tag;
+  return sym;
+};
+
+var isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function(it){
+  return typeof it == 'symbol';
+} : function(it){
+  return it instanceof $Symbol;
+};
+
+var $defineProperty = function defineProperty(it, key, D){
+  if(it === ObjectProto)$defineProperty(OPSymbols, key, D);
+  anObject(it);
+  key = toPrimitive(key, true);
+  anObject(D);
+  if(has(AllSymbols, key)){
+    if(!D.enumerable){
+      if(!has(it, HIDDEN))dP(it, HIDDEN, createDesc(1, {}));
+      it[HIDDEN][key] = true;
+    } else {
+      if(has(it, HIDDEN) && it[HIDDEN][key])it[HIDDEN][key] = false;
+      D = _create(D, {enumerable: createDesc(0, false)});
+    } return setSymbolDesc(it, key, D);
+  } return dP(it, key, D);
+};
+var $defineProperties = function defineProperties(it, P){
+  anObject(it);
+  var keys = enumKeys(P = toIObject(P))
+    , i    = 0
+    , l = keys.length
+    , key;
+  while(l > i)$defineProperty(it, key = keys[i++], P[key]);
+  return it;
+};
+var $create = function create(it, P){
+  return P === undefined ? _create(it) : $defineProperties(_create(it), P);
+};
+var $propertyIsEnumerable = function propertyIsEnumerable(key){
+  var E = isEnum.call(this, key = toPrimitive(key, true));
+  if(this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key))return false;
+  return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
+};
+var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key){
+  it  = toIObject(it);
+  key = toPrimitive(key, true);
+  if(it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key))return;
+  var D = gOPD(it, key);
+  if(D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key]))D.enumerable = true;
+  return D;
+};
+var $getOwnPropertyNames = function getOwnPropertyNames(it){
+  var names  = gOPN(toIObject(it))
+    , result = []
+    , i      = 0
+    , key;
+  while(names.length > i){
+    if(!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META)result.push(key);
+  } return result;
+};
+var $getOwnPropertySymbols = function getOwnPropertySymbols(it){
+  var IS_OP  = it === ObjectProto
+    , names  = gOPN(IS_OP ? OPSymbols : toIObject(it))
+    , result = []
+    , i      = 0
+    , key;
+  while(names.length > i){
+    if(has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true))result.push(AllSymbols[key]);
+  } return result;
+};
+
+// 19.4.1.1 Symbol([description])
+if(!USE_NATIVE){
+  $Symbol = function Symbol(){
+    if(this instanceof $Symbol)throw TypeError('Symbol is not a constructor!');
+    var tag = uid(arguments.length > 0 ? arguments[0] : undefined);
+    var $set = function(value){
+      if(this === ObjectProto)$set.call(OPSymbols, value);
+      if(has(this, HIDDEN) && has(this[HIDDEN], tag))this[HIDDEN][tag] = false;
+      setSymbolDesc(this, tag, createDesc(1, value));
+    };
+    if(DESCRIPTORS && setter)setSymbolDesc(ObjectProto, tag, {configurable: true, set: $set});
+    return wrap(tag);
+  };
+  redefine($Symbol[PROTOTYPE], 'toString', function toString(){
+    return this._k;
+  });
+
+  $GOPD.f = $getOwnPropertyDescriptor;
+  $DP.f   = $defineProperty;
+  __webpack_require__(105).f = gOPNExt.f = $getOwnPropertyNames;
+  __webpack_require__(39).f  = $propertyIsEnumerable;
+  __webpack_require__(66).f = $getOwnPropertySymbols;
+
+  if(DESCRIPTORS && !__webpack_require__(65)){
+    redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
+  }
+
+  wksExt.f = function(name){
+    return wrap(wks(name));
+  }
+}
+
+$export($export.G + $export.W + $export.F * !USE_NATIVE, {Symbol: $Symbol});
+
+for(var symbols = (
+  // 19.4.2.2, 19.4.2.3, 19.4.2.4, 19.4.2.6, 19.4.2.8, 19.4.2.9, 19.4.2.10, 19.4.2.11, 19.4.2.12, 19.4.2.13, 19.4.2.14
+  'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'
+).split(','), i = 0; symbols.length > i; )wks(symbols[i++]);
+
+for(var symbols = $keys(wks.store), i = 0; symbols.length > i; )wksDefine(symbols[i++]);
+
+$export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
+  // 19.4.2.1 Symbol.for(key)
+  'for': function(key){
+    return has(SymbolRegistry, key += '')
+      ? SymbolRegistry[key]
+      : SymbolRegistry[key] = $Symbol(key);
+  },
+  // 19.4.2.5 Symbol.keyFor(sym)
+  keyFor: function keyFor(key){
+    if(isSymbol(key))return keyOf(SymbolRegistry, key);
+    throw TypeError(key + ' is not a symbol!');
+  },
+  useSetter: function(){ setter = true; },
+  useSimple: function(){ setter = false; }
+});
+
+$export($export.S + $export.F * !USE_NATIVE, 'Object', {
+  // 19.1.2.2 Object.create(O [, Properties])
+  create: $create,
+  // 19.1.2.4 Object.defineProperty(O, P, Attributes)
+  defineProperty: $defineProperty,
+  // 19.1.2.3 Object.defineProperties(O, Properties)
+  defineProperties: $defineProperties,
+  // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
+  getOwnPropertyDescriptor: $getOwnPropertyDescriptor,
+  // 19.1.2.7 Object.getOwnPropertyNames(O)
+  getOwnPropertyNames: $getOwnPropertyNames,
+  // 19.1.2.8 Object.getOwnPropertySymbols(O)
+  getOwnPropertySymbols: $getOwnPropertySymbols
+});
+
+// 24.3.2 JSON.stringify(value [, replacer [, space]])
+$JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function(){
+  var S = $Symbol();
+  // MS Edge converts symbol values to JSON as {}
+  // WebKit converts symbol values to JSON as null
+  // V8 throws on boxed symbols
+  return _stringify([S]) != '[null]' || _stringify({a: S}) != '{}' || _stringify(Object(S)) != '{}';
+})), 'JSON', {
+  stringify: function stringify(it){
+    if(it === undefined || isSymbol(it))return; // IE8 returns string on undefined
+    var args = [it]
+      , i    = 1
+      , replacer, $replacer;
+    while(arguments.length > i)args.push(arguments[i++]);
+    replacer = args[1];
+    if(typeof replacer == 'function')$replacer = replacer;
+    if($replacer || !isArray(replacer))replacer = function(key, value){
+      if($replacer)value = $replacer.call(this, key, value);
+      if(!isSymbol(value))return value;
+    };
+    args[1] = replacer;
+    return _stringify.apply($JSON, args);
+  }
+});
+
+// 19.4.3.4 Symbol.prototype[@@toPrimitive](hint)
+$Symbol[PROTOTYPE][TO_PRIMITIVE] || __webpack_require__(11)($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
+// 19.4.3.5 Symbol.prototype[@@toStringTag]
+setToStringTag($Symbol, 'Symbol');
+// 20.2.1.9 Math[@@toStringTag]
+setToStringTag(Math, 'Math', true);
+// 24.3.3 JSON[@@toStringTag]
+setToStringTag(global.JSON, 'JSON', true);
+
+/***/ }),
+/* 79 */
+/***/ (function(module, exports, __webpack_require__) {
+
+/*
+  Copyright (C) 2013 Yusuke Suzuki <utatane.tea@gmail.com>
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+(function () {
+    'use strict';
+
+    exports.ast = __webpack_require__(232);
+    exports.code = __webpack_require__(108);
+    exports.keyword = __webpack_require__(233);
+}());
+/* vim: set sw=4 ts=4 et tw=80 : */
+
+
+/***/ }),
+/* 80 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var getNative = __webpack_require__(20),
+    root = __webpack_require__(5);
+
+/* Built-in method references that are verified to be native. */
+var Map = getNative(root, 'Map');
+
+module.exports = Map;
+
+
+/***/ }),
+/* 81 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var mapCacheClear = __webpack_require__(309),
+    mapCacheDelete = __webpack_require__(310),
+    mapCacheGet = __webpack_require__(311),
+    mapCacheHas = __webpack_require__(312),
+    mapCacheSet = __webpack_require__(313);
+
+/**
+ * Creates a map cache object to store key-value pairs.
+ *
+ * @private
+ * @constructor
+ * @param {Array} [entries] The key-value pairs to cache.
+ */
+function MapCache(entries) {
+  var index = -1,
+      length = entries == null ? 0 : entries.length;
+
+  this.clear();
+  while (++index < length) {
+    var entry = entries[index];
+    this.set(entry[0], entry[1]);
+  }
+}
+
+// Add methods to `MapCache`.
+MapCache.prototype.clear = mapCacheClear;
+MapCache.prototype['delete'] = mapCacheDelete;
+MapCache.prototype.get = mapCacheGet;
+MapCache.prototype.has = mapCacheHas;
+MapCache.prototype.set = mapCacheSet;
+
+module.exports = MapCache;
+
+
+/***/ }),
+/* 82 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseAssignValue = __webpack_require__(115),
+    eq = __webpack_require__(51);
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
+/**
+ * Assigns `value` to `key` of `object` if the existing value is not equivalent
+ * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * for equality comparisons.
+ *
+ * @private
+ * @param {Object} object The object to modify.
+ * @param {string} key The key of the property to assign.
+ * @param {*} value The value to assign.
+ */
+function assignValue(object, key, value) {
+  var objValue = object[key];
+  if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
+      (value === undefined && !(key in object))) {
+    baseAssignValue(object, key, value);
+  }
+}
+
+module.exports = assignValue;
+
+
+/***/ }),
+/* 83 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var Uint8Array = __webpack_require__(246);
+
+/**
+ * Creates a clone of `arrayBuffer`.
+ *
+ * @private
+ * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
+ * @returns {ArrayBuffer} Returns the cloned array buffer.
+ */
+function cloneArrayBuffer(arrayBuffer) {
+  var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
+  new Uint8Array(result).set(new Uint8Array(arrayBuffer));
+  return result;
+}
+
+module.exports = cloneArrayBuffer;
+
+
+/***/ }),
+/* 84 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var overArg = __webpack_require__(127);
+
+/** Built-in value references. */
+var getPrototype = overArg(Object.getPrototypeOf, Object);
+
+module.exports = getPrototype;
+
+
+/***/ }),
+/* 85 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var arrayFilter = __webpack_require__(251),
+    stubArray = __webpack_require__(135);
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Built-in value references. */
+var propertyIsEnumerable = objectProto.propertyIsEnumerable;
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeGetSymbols = Object.getOwnPropertySymbols;
+
+/**
+ * Creates an array of the own enumerable symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of symbols.
+ */
+var getSymbols = !nativeGetSymbols ? stubArray : function(object) {
+  if (object == null) {
+    return [];
+  }
+  object = Object(object);
+  return arrayFilter(nativeGetSymbols(object), function(symbol) {
+    return propertyIsEnumerable.call(object, symbol);
+  });
+};
+
+module.exports = getSymbols;
+
+
+/***/ }),
+/* 86 */
+/***/ (function(module, exports) {
+
+/** Used as references for various `Number` constants. */
+var MAX_SAFE_INTEGER = 9007199254740991;
+
+/** Used to detect unsigned integer values. */
+var reIsUint = /^(?:0|[1-9]\d*)$/;
+
+/**
+ * Checks if `value` is a valid array-like index.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
+ * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
+ */
+function isIndex(value, length) {
+  length = length == null ? MAX_SAFE_INTEGER : length;
+  return !!length &&
+    (typeof value == 'number' || reIsUint.test(value)) &&
+    (value > -1 && value % 1 == 0 && value < length);
+}
+
+module.exports = isIndex;
+
+
+/***/ }),
+/* 87 */
+/***/ (function(module, exports) {
+
+/**
+ * Converts `set` to an array of its values.
+ *
+ * @private
+ * @param {Object} set The set to convert.
+ * @returns {Array} Returns the values.
+ */
+function setToArray(set) {
+  var index = -1,
+      result = Array(set.size);
+
+  set.forEach(function(value) {
+    result[++index] = value;
+  });
+  return result;
+}
+
+module.exports = setToArray;
+
+
+/***/ }),
+/* 88 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseIndexOf = __webpack_require__(118),
+    isArrayLike = __webpack_require__(30),
+    isString = __webpack_require__(339),
+    toInteger = __webpack_require__(136),
+    values = __webpack_require__(348);
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeMax = Math.max;
+
+/**
+ * Checks if `value` is in `collection`. If `collection` is a string, it's
+ * checked for a substring of `value`, otherwise
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * is used for equality comparisons. If `fromIndex` is negative, it's used as
+ * the offset from the end of `collection`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object|string} collection The collection to inspect.
+ * @param {*} value The value to search for.
+ * @param {number} [fromIndex=0] The index to search from.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
+ * @returns {boolean} Returns `true` if `value` is found, else `false`.
+ * @example
+ *
+ * _.includes([1, 2, 3], 1);
+ * // => true
+ *
+ * _.includes([1, 2, 3], 1, 2);
+ * // => false
+ *
+ * _.includes({ 'a': 1, 'b': 2 }, 1);
+ * // => true
+ *
+ * _.includes('abcd', 'bc');
+ * // => true
+ */
+function includes(collection, value, fromIndex, guard) {
+  collection = isArrayLike(collection) ? collection : values(collection);
+  fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;
+
+  var length = collection.length;
+  if (fromIndex < 0) {
+    fromIndex = nativeMax(length + fromIndex, 0);
+  }
+  return isString(collection)
+    ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)
+    : (!!length && baseIndexOf(collection, value, fromIndex) > -1);
+}
+
+module.exports = includes;
+
+
+/***/ }),
+/* 89 */
+/***/ (function(module, exports) {
+
+/** Used as references for various `Number` constants. */
+var MAX_SAFE_INTEGER = 9007199254740991;
+
+/**
+ * Checks if `value` is a valid array-like length.
+ *
+ * **Note:** This method is loosely based on
+ * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+ * @example
+ *
+ * _.isLength(3);
+ * // => true
+ *
+ * _.isLength(Number.MIN_VALUE);
+ * // => false
+ *
+ * _.isLength(Infinity);
+ * // => false
+ *
+ * _.isLength('3');
+ * // => false
+ */
+function isLength(value) {
+  return typeof value == 'number' &&
+    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
+}
+
+module.exports = isLength;
+
+
+/***/ }),
+/* 90 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var arrayLikeKeys = __webpack_require__(111),
+    baseKeysIn = __webpack_require__(265),
+    isArrayLike = __webpack_require__(30);
+
+/**
+ * Creates an array of the own and inherited enumerable property names of `object`.
+ *
+ * **Note:** Non-object values are coerced to objects.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ * @example
+ *
+ * function Foo() {
+ *   this.a = 1;
+ *   this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.keysIn(new Foo);
+ * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
+ */
+function keysIn(object) {
+  return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
+}
+
+module.exports = keysIn;
+
+
+/***/ }),
+/* 91 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+module.exports = function () {
+	return /[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-PRZcf-nqry=><]/g;
+};
+
+
+/***/ }),
+/* 92 */
+/***/ (function(module, exports, __webpack_require__) {
+
+module.exports = { "default": __webpack_require__(186), __esModule: true };
+
+/***/ }),
+/* 93 */
+/***/ (function(module, exports, __webpack_require__) {
+
+module.exports = { "default": __webpack_require__(192), __esModule: true };
+
+/***/ }),
+/* 94 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+
+var _classCallCheck2 = __webpack_require__(15);
+
+var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var Hub = function Hub(file, options) {
+  (0, _classCallCheck3.default)(this, Hub);
+
+  this.file = file;
+  this.options = options;
+};
+
+exports.default = Hub;
+module.exports = exports["default"];
+
+/***/ }),
+/* 95 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+exports.Flow = exports.Pure = exports.Generated = exports.User = exports.Var = exports.BlockScoped = exports.Referenced = exports.Scope = exports.Expression = exports.Statement = exports.BindingIdentifier = exports.ReferencedMemberExpression = exports.ReferencedIdentifier = undefined;
+
+var _babelTypes = __webpack_require__(0);
+
+var t = _interopRequireWildcard(_babelTypes);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+var ReferencedIdentifier = exports.ReferencedIdentifier = {
+  types: ["Identifier", "JSXIdentifier"],
+  checkPath: function checkPath(_ref, opts) {
+    var node = _ref.node,
+        parent = _ref.parent;
+
+    if (!t.isIdentifier(node, opts) && !t.isJSXMemberExpression(parent, opts)) {
+      if (t.isJSXIdentifier(node, opts)) {
+        if (_babelTypes.react.isCompatTag(node.name)) return false;
+      } else {
+        return false;
+      }
+    }
+
+    return t.isReferenced(node, parent);
+  }
+};
+
+var ReferencedMemberExpression = exports.ReferencedMemberExpression = {
+  types: ["MemberExpression"],
+  checkPath: function checkPath(_ref2) {
+    var node = _ref2.node,
+        parent = _ref2.parent;
+
+    return t.isMemberExpression(node) && t.isReferenced(node, parent);
+  }
+};
+
+var BindingIdentifier = exports.BindingIdentifier = {
+  types: ["Identifier"],
+  checkPath: function checkPath(_ref3) {
+    var node = _ref3.node,
+        parent = _ref3.parent;
+
+    return t.isIdentifier(node) && t.isBinding(node, parent);
+  }
+};
+
+var Statement = exports.Statement = {
+  types: ["Statement"],
+  checkPath: function checkPath(_ref4) {
+    var node = _ref4.node,
+        parent = _ref4.parent;
+
+    if (t.isStatement(node)) {
+      if (t.isVariableDeclaration(node)) {
+        if (t.isForXStatement(parent, { left: node })) return false;
+        if (t.isForStatement(parent, { init: node })) return false;
+      }
+
+      return true;
+    } else {
+      return false;
+    }
+  }
+};
+
+var Expression = exports.Expression = {
+  types: ["Expression"],
+  checkPath: function checkPath(path) {
+    if (path.isIdentifier()) {
+      return path.isReferencedIdentifier();
+    } else {
+      return t.isExpression(path.node);
+    }
+  }
+};
+
+var Scope = exports.Scope = {
+  types: ["Scopable"],
+  checkPath: function checkPath(path) {
+    return t.isScope(path.node, path.parent);
+  }
+};
+
+var Referenced = exports.Referenced = {
+  checkPath: function checkPath(path) {
+    return t.isReferenced(path.node, path.parent);
+  }
+};
+
+var BlockScoped = exports.BlockScoped = {
+  checkPath: function checkPath(path) {
+    return t.isBlockScoped(path.node);
+  }
+};
+
+var Var = exports.Var = {
+  types: ["VariableDeclaration"],
+  checkPath: function checkPath(path) {
+    return t.isVar(path.node);
+  }
+};
+
+var User = exports.User = {
+  checkPath: function checkPath(path) {
+    return path.node && !!path.node.loc;
+  }
+};
+
+var Generated = exports.Generated = {
+  checkPath: function checkPath(path) {
+    return !path.isUser();
+  }
+};
+
+var Pure = exports.Pure = {
+  checkPath: function checkPath(path, opts) {
+    return path.scope.isPure(path.node, opts);
+  }
+};
+
+var Flow = exports.Flow = {
+  types: ["Flow", "ImportDeclaration", "ExportDeclaration", "ImportSpecifier"],
+  checkPath: function checkPath(_ref5) {
+    var node = _ref5.node;
+
+    if (t.isFlow(node)) {
+      return true;
+    } else if (t.isImportDeclaration(node)) {
+      return node.importKind === "type" || node.importKind === "typeof";
+    } else if (t.isExportDeclaration(node)) {
+      return node.exportKind === "type";
+    } else if (t.isImportSpecifier(node)) {
+      return node.importKind === "type" || node.importKind === "typeof";
+    } else {
+      return false;
+    }
+  }
+};
+
+/***/ }),
+/* 96 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+
+var _classCallCheck2 = __webpack_require__(15);
+
+var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var Binding = function () {
+  function Binding(_ref) {
+    var existing = _ref.existing,
+        identifier = _ref.identifier,
+        scope = _ref.scope,
+        path = _ref.path,
+        kind = _ref.kind;
+    (0, _classCallCheck3.default)(this, Binding);
+
+    this.identifier = identifier;
+    this.scope = scope;
+    this.path = path;
+    this.kind = kind;
+
+    this.constantViolations = [];
+    this.constant = true;
+
+    this.referencePaths = [];
+    this.referenced = false;
+    this.references = 0;
+
+    this.clearValue();
+
+    if (existing) {
+      this.constantViolations = [].concat(existing.path, existing.constantViolations, this.constantViolations);
+    }
+  }
+
+  Binding.prototype.deoptValue = function deoptValue() {
+    this.clearValue();
+    this.hasDeoptedValue = true;
+  };
+
+  Binding.prototype.setValue = function setValue(value) {
+    if (this.hasDeoptedValue) return;
+    this.hasValue = true;
+    this.value = value;
+  };
+
+  Binding.prototype.clearValue = function clearValue() {
+    this.hasDeoptedValue = false;
+    this.hasValue = false;
+    this.value = null;
+  };
+
+  Binding.prototype.reassign = function reassign(path) {
+    this.constant = false;
+    if (this.constantViolations.indexOf(path) !== -1) {
+      return;
+    }
+    this.constantViolations.push(path);
+  };
+
+  Binding.prototype.reference = function reference(path) {
+    if (this.referencePaths.indexOf(path) !== -1) {
+      return;
+    }
+    this.referenced = true;
+    this.references++;
+    this.referencePaths.push(path);
+  };
+
+  Binding.prototype.dereference = function dereference() {
+    this.references--;
+    this.referenced = !!this.references;
+  };
+
+  return Binding;
+}();
+
+exports.default = Binding;
+module.exports = exports["default"];
+
+/***/ }),
+/* 97 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+
+var _create = __webpack_require__(56);
+
+var _create2 = _interopRequireDefault(_create);
+
+exports.getBindingIdentifiers = getBindingIdentifiers;
+exports.getOuterBindingIdentifiers = getOuterBindingIdentifiers;
+
+var _index = __webpack_require__(0);
+
+var t = _interopRequireWildcard(_index);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function getBindingIdentifiers(node, duplicates, outerOnly) {
+  var search = [].concat(node);
+  var ids = (0, _create2.default)(null);
+
+  while (search.length) {
+    var id = search.shift();
+    if (!id) continue;
+
+    var keys = t.getBindingIdentifiers.keys[id.type];
+
+    if (t.isIdentifier(id)) {
+      if (duplicates) {
+        var _ids = ids[id.name] = ids[id.name] || [];
+        _ids.push(id);
+      } else {
+        ids[id.name] = id;
+      }
+      continue;
+    }
+
+    if (t.isExportDeclaration(id)) {
+      if (t.isDeclaration(id.declaration)) {
+        search.push(id.declaration);
+      }
+      continue;
+    }
+
+    if (outerOnly) {
+      if (t.isFunctionDeclaration(id)) {
+        search.push(id.id);
+        continue;
+      }
+
+      if (t.isFunctionExpression(id)) {
+        continue;
+      }
+    }
+
+    if (keys) {
+      for (var i = 0; i < keys.length; i++) {
+        var key = keys[i];
+        if (id[key]) {
+          search = search.concat(id[key]);
+        }
+      }
+    }
+  }
+
+  return ids;
+}
+
+getBindingIdentifiers.keys = {
+  DeclareClass: ["id"],
+  DeclareFunction: ["id"],
+  DeclareModule: ["id"],
+  DeclareVariable: ["id"],
+  InterfaceDeclaration: ["id"],
+  TypeAlias: ["id"],
+
+  CatchClause: ["param"],
+  LabeledStatement: ["label"],
+  UnaryExpression: ["argument"],
+  AssignmentExpression: ["left"],
+
+  ImportSpecifier: ["local"],
+  ImportNamespaceSpecifier: ["local"],
+  ImportDefaultSpecifier: ["local"],
+  ImportDeclaration: ["specifiers"],
+
+  ExportSpecifier: ["exported"],
+  ExportNamespaceSpecifier: ["exported"],
+  ExportDefaultSpecifier: ["exported"],
+
+  FunctionDeclaration: ["id", "params"],
+  FunctionExpression: ["id", "params"],
+
+  ClassDeclaration: ["id"],
+  ClassExpression: ["id"],
+
+  RestElement: ["argument"],
+  UpdateExpression: ["argument"],
+
+  RestProperty: ["argument"],
+  ObjectProperty: ["value"],
+
+  AssignmentPattern: ["left"],
+  ArrayPattern: ["elements"],
+  ObjectPattern: ["properties"],
+
+  VariableDeclaration: ["declarations"],
+  VariableDeclarator: ["id"]
+};
+
+function getOuterBindingIdentifiers(node, duplicates) {
+  return getBindingIdentifiers(node, duplicates, true);
+}
+
+/***/ }),
+/* 98 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+/* eslint max-len: 0 */
+
+// This is a trick taken from Esprima. It turns out that, on
+// non-Chrome browsers, to check whether a string is in a set, a
+// predicate containing a big ugly `switch` statement is faster than
+// a regular expression, and on Chrome the two are about on par.
+// This function uses `eval` (non-lexical) to produce such a
+// predicate from a space-separated string of words.
+//
+// It starts by sorting the words by length.
+
+function makePredicate(words) {
+  words = words.split(" ");
+  return function (str) {
+    return words.indexOf(str) >= 0;
+  };
+}
+
+// Reserved word lists for various dialects of the language
+
+var reservedWords = {
+  6: makePredicate("enum await"),
+  strict: makePredicate("implements interface let package private protected public static yield"),
+  strictBind: makePredicate("eval arguments")
+};
+
+// And the keywords
+
+var isKeyword = makePredicate("break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this let const class extends export import yield super");
+
+// ## Character categories
+
+// Big ugly regular expressions that match characters in the
+// whitespace, identifier, and identifier-start categories. These
+// are only applied when a character is found to actually have a
+// code point above 128.
+// Generated by `bin/generate-identifier-regex.js`.
+
+var nonASCIIidentifierStartChars = "\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B4\u08B6-\u08BD\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0AF9\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58-\u0C5A\u0C60\u0C61\u0C80\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D54-\u0D56\u0D5F-\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1C80-\u1C88\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2118-\u211D\u2124\u2126\u2128\u212A-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309B-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FD5\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA8FD\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC";
+var nonASCIIidentifierChars = "\u200C\u200D\xB7\u0300-\u036F\u0387\u0483-\u0487\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u0669\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u06F0-\u06F9\u0711\u0730-\u074A\u07A6-\u07B0\u07C0-\u07C9\u07EB-\u07F3\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u08D4-\u08E1\u08E3-\u0903\u093A-\u093C\u093E-\u094F\u0951-\u0957\u0962\u0963\u0966-\u096F\u0981-\u0983\u09BC\u09BE-\u09C4\u09C7\u09C8\u09CB-\u09CD\u09D7\u09E2\u09E3\u09E6-\u09EF\u0A01-\u0A03\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A66-\u0A71\u0A75\u0A81-\u0A83\u0ABC\u0ABE-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AE2\u0AE3\u0AE6-\u0AEF\u0B01-\u0B03\u0B3C\u0B3E-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B62\u0B63\u0B66-\u0B6F\u0B82\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD7\u0BE6-\u0BEF\u0C00-\u0C03\u0C3E-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C66-\u0C6F\u0C81-\u0C83\u0CBC\u0CBE-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CE2\u0CE3\u0CE6-\u0CEF\u0D01-\u0D03\u0D3E-\u0D44\u0D46-\u0D48\u0D4A-\u0D4D\u0D57\u0D62\u0D63\u0D66-\u0D6F\u0D82\u0D83\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2\u0DF3\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0E50-\u0E59\u0EB1\u0EB4-\u0EB9\u0EBB\u0EBC\u0EC8-\u0ECD\u0ED0-\u0ED9\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E\u0F3F\u0F71-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102B-\u103E\u1040-\u1049\u1056-\u1059\u105E-\u1060\u1062-\u1064\u1067-\u106D\u1071-\u1074\u1082-\u108D\u108F-\u109D\u135D-\u135F\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17B4-\u17D3\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u18A9\u1920-\u192B\u1930-\u193B\u1946-\u194F\u19D0-\u19DA\u1A17-\u1A1B\u1A55-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AB0-\u1ABD\u1B00-\u1B04\u1B34-\u1B44\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1B82\u1BA1-\u1BAD\u1BB0-\u1BB9\u1BE6-\u1BF3\u1C24-\u1C37\u1C40-\u1C49\u1C50-\u1C59\u1CD0-\u1CD2\u1CD4-\u1CE8\u1CED\u1CF2-\u1CF4\u1CF8\u1CF9\u1DC0-\u1DF5\u1DFB-\u1DFF\u203F\u2040\u2054\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302F\u3099\u309A\uA620-\uA629\uA66F\uA674-\uA67D\uA69E\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA823-\uA827\uA880\uA881\uA8B4-\uA8C5\uA8D0-\uA8D9\uA8E0-\uA8F1\uA900-\uA909\uA926-\uA92D\uA947-\uA953\uA980-\uA983\uA9B3-\uA9C0\uA9D0-\uA9D9\uA9E5\uA9F0-\uA9F9\uAA29-\uAA36\uAA43\uAA4C\uAA4D\uAA50-\uAA59\uAA7B-\uAA7D\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEB-\uAAEF\uAAF5\uAAF6\uABE3-\uABEA\uABEC\uABED\uABF0-\uABF9\uFB1E\uFE00-\uFE0F\uFE20-\uFE2F\uFE33\uFE34\uFE4D-\uFE4F\uFF10-\uFF19\uFF3F";
+
+var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
+var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");
+
+nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;
+
+// These are a run-length and offset encoded representation of the
+// >0xffff code points that are a valid part of identifiers. The
+// offset starts at 0x10000, and each pair of numbers represents an
+// offset to the next range, and then a size of the range. They were
+// generated by `bin/generate-identifier-regex.js`.
+// eslint-disable-next-line comma-spacing
+var astralIdentifierStartCodes = [0, 11, 2, 25, 2, 18, 2, 1, 2, 14, 3, 13, 35, 122, 70, 52, 268, 28, 4, 48, 48, 31, 17, 26, 6, 37, 11, 29, 3, 35, 5, 7, 2, 4, 43, 157, 19, 35, 5, 35, 5, 39, 9, 51, 157, 310, 10, 21, 11, 7, 153, 5, 3, 0, 2, 43, 2, 1, 4, 0, 3, 22, 11, 22, 10, 30, 66, 18, 2, 1, 11, 21, 11, 25, 71, 55, 7, 1, 65, 0, 16, 3, 2, 2, 2, 26, 45, 28, 4, 28, 36, 7, 2, 27, 28, 53, 11, 21, 11, 18, 14, 17, 111, 72, 56, 50, 14, 50, 785, 52, 76, 44, 33, 24, 27, 35, 42, 34, 4, 0, 13, 47, 15, 3, 22, 0, 2, 0, 36, 17, 2, 24, 85, 6, 2, 0, 2, 3, 2, 14, 2, 9, 8, 46, 39, 7, 3, 1, 3, 21, 2, 6, 2, 1, 2, 4, 4, 0, 19, 0, 13, 4, 159, 52, 19, 3, 54, 47, 21, 1, 2, 0, 185, 46, 42, 3, 37, 47, 21, 0, 60, 42, 86, 25, 391, 63, 32, 0, 449, 56, 264, 8, 2, 36, 18, 0, 50, 29, 881, 921, 103, 110, 18, 195, 2749, 1070, 4050, 582, 8634, 568, 8, 30, 114, 29, 19, 47, 17, 3, 32, 20, 6, 18, 881, 68, 12, 0, 67, 12, 65, 0, 32, 6124, 20, 754, 9486, 1, 3071, 106, 6, 12, 4, 8, 8, 9, 5991, 84, 2, 70, 2, 1, 3, 0, 3, 1, 3, 3, 2, 11, 2, 0, 2, 6, 2, 64, 2, 3, 3, 7, 2, 6, 2, 27, 2, 3, 2, 4, 2, 0, 4, 6, 2, 339, 3, 24, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 7, 4149, 196, 60, 67, 1213, 3, 2, 26, 2, 1, 2, 0, 3, 0, 2, 9, 2, 3, 2, 0, 2, 0, 7, 0, 5, 0, 2, 0, 2, 0, 2, 2, 2, 1, 2, 0, 3, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 3, 3, 2, 6, 2, 3, 2, 3, 2, 0, 2, 9, 2, 16, 6, 2, 2, 4, 2, 16, 4421, 42710, 42, 4148, 12, 221, 3, 5761, 10591, 541];
+// eslint-disable-next-line comma-spacing
+var astralIdentifierCodes = [509, 0, 227, 0, 150, 4, 294, 9, 1368, 2, 2, 1, 6, 3, 41, 2, 5, 0, 166, 1, 1306, 2, 54, 14, 32, 9, 16, 3, 46, 10, 54, 9, 7, 2, 37, 13, 2, 9, 52, 0, 13, 2, 49, 13, 10, 2, 4, 9, 83, 11, 7, 0, 161, 11, 6, 9, 7, 3, 57, 0, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 193, 17, 10, 9, 87, 19, 13, 9, 214, 6, 3, 8, 28, 1, 83, 16, 16, 9, 82, 12, 9, 9, 84, 14, 5, 9, 423, 9, 838, 7, 2, 7, 17, 9, 57, 21, 2, 13, 19882, 9, 135, 4, 60, 6, 26, 9, 1016, 45, 17, 3, 19723, 1, 5319, 4, 4, 5, 9, 7, 3, 6, 31, 3, 149, 2, 1418, 49, 513, 54, 5, 49, 9, 0, 15, 0, 23, 4, 2, 14, 1361, 6, 2, 16, 3, 6, 2, 1, 2, 4, 2214, 6, 110, 6, 6, 9, 792487, 239];
+
+// This has a complexity linear to the value of the code. The
+// assumption is that looking up astral identifier characters is
+// rare.
+function isInAstralSet(code, set) {
+  var pos = 0x10000;
+  for (var i = 0; i < set.length; i += 2) {
+    pos += set[i];
+    if (pos > code) return false;
+
+    pos += set[i + 1];
+    if (pos >= code) return true;
+  }
+}
+
+// Test whether a given character code starts an identifier.
+
+function isIdentifierStart(code) {
+  if (code < 65) return code === 36;
+  if (code < 91) return true;
+  if (code < 97) return code === 95;
+  if (code < 123) return true;
+  if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code));
+  return isInAstralSet(code, astralIdentifierStartCodes);
+}
+
+// Test whether a given character is part of an identifier.
+
+function isIdentifierChar(code) {
+  if (code < 48) return code === 36;
+  if (code < 58) return true;
+  if (code < 65) return false;
+  if (code < 91) return true;
+  if (code < 97) return code === 95;
+  if (code < 123) return true;
+  if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code));
+  return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes);
+}
+
+// A second optional argument can be given to further configure
+var defaultOptions = {
+  // Source type ("script" or "module") for different semantics
+  sourceType: "script",
+  // Source filename.
+  sourceFilename: undefined,
+  // Line from which to start counting source. Useful for
+  // integration with other tools.
+  startLine: 1,
+  // When enabled, a return at the top level is not considered an
+  // error.
+  allowReturnOutsideFunction: false,
+  // When enabled, import/export statements are not constrained to
+  // appearing at the top of the program.
+  allowImportExportEverywhere: false,
+  // TODO
+  allowSuperOutsideMethod: false,
+  // An array of plugins to enable
+  plugins: [],
+  // TODO
+  strictMode: null
+};
+
+// Interpret and default an options object
+
+function getOptions(opts) {
+  var options = {};
+  for (var key in defaultOptions) {
+    options[key] = opts && key in opts ? opts[key] : defaultOptions[key];
+  }
+  return options;
+}
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
+  return typeof obj;
+} : function (obj) {
+  return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+};
+
+
+
+
+
+
+
+
+
+
+
+var classCallCheck = function (instance, Constructor) {
+  if (!(instance instanceof Constructor)) {
+    throw new TypeError("Cannot call a class as a function");
+  }
+};
+
+
+
+
+
+
+
+
+
+
+
+var inherits = function (subClass, superClass) {
+  if (typeof superClass !== "function" && superClass !== null) {
+    throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
+  }
+
+  subClass.prototype = Object.create(superClass && superClass.prototype, {
+    constructor: {
+      value: subClass,
+      enumerable: false,
+      writable: true,
+      configurable: true
+    }
+  });
+  if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+};
+
+
+
+
+
+
+
+
+
+
+
+var possibleConstructorReturn = function (self, call) {
+  if (!self) {
+    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+  }
+
+  return call && (typeof call === "object" || typeof call === "function") ? call : self;
+};
+
+// ## Token types
+
+// The assignment of fine-grained, information-carrying type objects
+// allows the tokenizer to store the information it has about a
+// token in a way that is very cheap for the parser to look up.
+
+// All token type variables start with an underscore, to make them
+// easy to recognize.
+
+// The `beforeExpr` property is used to disambiguate between regular
+// expressions and divisions. It is set on all token types that can
+// be followed by an expression (thus, a slash after them would be a
+// regular expression).
+//
+// `isLoop` marks a keyword as starting a loop, which is important
+// to know when parsing a label, in order to allow or disallow
+// continue jumps to that label.
+
+var beforeExpr = true;
+var startsExpr = true;
+var isLoop = true;
+var isAssign = true;
+var prefix = true;
+var postfix = true;
+
+var TokenType = function TokenType(label) {
+  var conf = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+  classCallCheck(this, TokenType);
+
+  this.label = label;
+  this.keyword = conf.keyword;
+  this.beforeExpr = !!conf.beforeExpr;
+  this.startsExpr = !!conf.startsExpr;
+  this.rightAssociative = !!conf.rightAssociative;
+  this.isLoop = !!conf.isLoop;
+  this.isAssign = !!conf.isAssign;
+  this.prefix = !!conf.prefix;
+  this.postfix = !!conf.postfix;
+  this.binop = conf.binop || null;
+  this.updateContext = null;
+};
+
+var KeywordTokenType = function (_TokenType) {
+  inherits(KeywordTokenType, _TokenType);
+
+  function KeywordTokenType(name) {
+    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    classCallCheck(this, KeywordTokenType);
+
+    options.keyword = name;
+
+    return possibleConstructorReturn(this, _TokenType.call(this, name, options));
+  }
+
+  return KeywordTokenType;
+}(TokenType);
+
+var BinopTokenType = function (_TokenType2) {
+  inherits(BinopTokenType, _TokenType2);
+
+  function BinopTokenType(name, prec) {
+    classCallCheck(this, BinopTokenType);
+    return possibleConstructorReturn(this, _TokenType2.call(this, name, { beforeExpr: beforeExpr, binop: prec }));
+  }
+
+  return BinopTokenType;
+}(TokenType);
+
+var types = {
+  num: new TokenType("num", { startsExpr: startsExpr }),
+  regexp: new TokenType("regexp", { startsExpr: startsExpr }),
+  string: new TokenType("string", { startsExpr: startsExpr }),
+  name: new TokenType("name", { startsExpr: startsExpr }),
+  eof: new TokenType("eof"),
+
+  // Punctuation token types.
+  bracketL: new TokenType("[", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
+  bracketR: new TokenType("]"),
+  braceL: new TokenType("{", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
+  braceBarL: new TokenType("{|", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
+  braceR: new TokenType("}"),
+  braceBarR: new TokenType("|}"),
+  parenL: new TokenType("(", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
+  parenR: new TokenType(")"),
+  comma: new TokenType(",", { beforeExpr: beforeExpr }),
+  semi: new TokenType(";", { beforeExpr: beforeExpr }),
+  colon: new TokenType(":", { beforeExpr: beforeExpr }),
+  doubleColon: new TokenType("::", { beforeExpr: beforeExpr }),
+  dot: new TokenType("."),
+  question: new TokenType("?", { beforeExpr: beforeExpr }),
+  arrow: new TokenType("=>", { beforeExpr: beforeExpr }),
+  template: new TokenType("template"),
+  ellipsis: new TokenType("...", { beforeExpr: beforeExpr }),
+  backQuote: new TokenType("`", { startsExpr: startsExpr }),
+  dollarBraceL: new TokenType("${", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
+  at: new TokenType("@"),
+
+  // Operators. These carry several kinds of properties to help the
+  // parser use them properly (the presence of these properties is
+  // what categorizes them as operators).
+  //
+  // `binop`, when present, specifies that this operator is a binary
+  // operator, and will refer to its precedence.
+  //
+  // `prefix` and `postfix` mark the operator as a prefix or postfix
+  // unary operator.
+  //
+  // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
+  // binary operators with a very low precedence, that should result
+  // in AssignmentExpression nodes.
+
+  eq: new TokenType("=", { beforeExpr: beforeExpr, isAssign: isAssign }),
+  assign: new TokenType("_=", { beforeExpr: beforeExpr, isAssign: isAssign }),
+  incDec: new TokenType("++/--", { prefix: prefix, postfix: postfix, startsExpr: startsExpr }),
+  prefix: new TokenType("prefix", { beforeExpr: beforeExpr, prefix: prefix, startsExpr: startsExpr }),
+  logicalOR: new BinopTokenType("||", 1),
+  logicalAND: new BinopTokenType("&&", 2),
+  bitwiseOR: new BinopTokenType("|", 3),
+  bitwiseXOR: new BinopTokenType("^", 4),
+  bitwiseAND: new BinopTokenType("&", 5),
+  equality: new BinopTokenType("==/!=", 6),
+  relational: new BinopTokenType("</>", 7),
+  bitShift: new BinopTokenType("<</>>", 8),
+  plusMin: new TokenType("+/-", { beforeExpr: beforeExpr, binop: 9, prefix: prefix, startsExpr: startsExpr }),
+  modulo: new BinopTokenType("%", 10),
+  star: new BinopTokenType("*", 10),
+  slash: new BinopTokenType("/", 10),
+  exponent: new TokenType("**", { beforeExpr: beforeExpr, binop: 11, rightAssociative: true })
+};
+
+var keywords = {
+  "break": new KeywordTokenType("break"),
+  "case": new KeywordTokenType("case", { beforeExpr: beforeExpr }),
+  "catch": new KeywordTokenType("catch"),
+  "continue": new KeywordTokenType("continue"),
+  "debugger": new KeywordTokenType("debugger"),
+  "default": new KeywordTokenType("default", { beforeExpr: beforeExpr }),
+  "do": new KeywordTokenType("do", { isLoop: isLoop, beforeExpr: beforeExpr }),
+  "else": new KeywordTokenType("else", { beforeExpr: beforeExpr }),
+  "finally": new KeywordTokenType("finally"),
+  "for": new KeywordTokenType("for", { isLoop: isLoop }),
+  "function": new KeywordTokenType("function", { startsExpr: startsExpr }),
+  "if": new KeywordTokenType("if"),
+  "return": new KeywordTokenType("return", { beforeExpr: beforeExpr }),
+  "switch": new KeywordTokenType("switch"),
+  "throw": new KeywordTokenType("throw", { beforeExpr: beforeExpr }),
+  "try": new KeywordTokenType("try"),
+  "var": new KeywordTokenType("var"),
+  "let": new KeywordTokenType("let"),
+  "const": new KeywordTokenType("const"),
+  "while": new KeywordTokenType("while", { isLoop: isLoop }),
+  "with": new KeywordTokenType("with"),
+  "new": new KeywordTokenType("new", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
+  "this": new KeywordTokenType("this", { startsExpr: startsExpr }),
+  "super": new KeywordTokenType("super", { startsExpr: startsExpr }),
+  "class": new KeywordTokenType("class"),
+  "extends": new KeywordTokenType("extends", { beforeExpr: beforeExpr }),
+  "export": new KeywordTokenType("export"),
+  "import": new KeywordTokenType("import"),
+  "yield": new KeywordTokenType("yield", { beforeExpr: beforeExpr, startsExpr: startsExpr }),
+  "null": new KeywordTokenType("null", { startsExpr: startsExpr }),
+  "true": new KeywordTokenType("true", { startsExpr: startsExpr }),
+  "false": new KeywordTokenType("false", { startsExpr: startsExpr }),
+  "in": new KeywordTokenType("in", { beforeExpr: beforeExpr, binop: 7 }),
+  "instanceof": new KeywordTokenType("instanceof", { beforeExpr: beforeExpr, binop: 7 }),
+  "typeof": new KeywordTokenType("typeof", { beforeExpr: beforeExpr, prefix: prefix, startsExpr: startsExpr }),
+  "void": new KeywordTokenType("void", { beforeExpr: beforeExpr, prefix: prefix, startsExpr: startsExpr }),
+  "delete": new KeywordTokenType("delete", { beforeExpr: beforeExpr, prefix: prefix, startsExpr: startsExpr })
+};
+
+// Map keyword names to token types.
+Object.keys(keywords).forEach(function (name) {
+  types["_" + name] = keywords[name];
+});
+
+// Matches a whole line break (where CRLF is considered a single
+// line break). Used to count lines.
+
+var lineBreak = /\r\n?|\n|\u2028|\u2029/;
+var lineBreakG = new RegExp(lineBreak.source, "g");
+
+function isNewLine(code) {
+  return code === 10 || code === 13 || code === 0x2028 || code === 0x2029;
+}
+
+var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;
+
+// The algorithm used to determine whether a regexp can appear at a
+// given point in the program is loosely based on sweet.js' approach.
+// See https://github.com/mozilla/sweet.js/wiki/design
+
+var TokContext = function TokContext(token, isExpr, preserveSpace, override) {
+  classCallCheck(this, TokContext);
+
+  this.token = token;
+  this.isExpr = !!isExpr;
+  this.preserveSpace = !!preserveSpace;
+  this.override = override;
+};
+
+var types$1 = {
+  braceStatement: new TokContext("{", false),
+  braceExpression: new TokContext("{", true),
+  templateQuasi: new TokContext("${", true),
+  parenStatement: new TokContext("(", false),
+  parenExpression: new TokContext("(", true),
+  template: new TokContext("`", true, true, function (p) {
+    return p.readTmplToken();
+  }),
+  functionExpression: new TokContext("function", true)
+};
+
+// Token-specific context update code
+
+types.parenR.updateContext = types.braceR.updateContext = function () {
+  if (this.state.context.length === 1) {
+    this.state.exprAllowed = true;
+    return;
+  }
+
+  var out = this.state.context.pop();
+  if (out === types$1.braceStatement && this.curContext() === types$1.functionExpression) {
+    this.state.context.pop();
+    this.state.exprAllowed = false;
+  } else if (out === types$1.templateQuasi) {
+    this.state.exprAllowed = true;
+  } else {
+    this.state.exprAllowed = !out.isExpr;
+  }
+};
+
+types.name.updateContext = function (prevType) {
+  this.state.exprAllowed = false;
+
+  if (prevType === types._let || prevType === types._const || prevType === types._var) {
+    if (lineBreak.test(this.input.slice(this.state.end))) {
+      this.state.exprAllowed = true;
+    }
+  }
+};
+
+types.braceL.updateContext = function (prevType) {
+  this.state.context.push(this.braceIsBlock(prevType) ? types$1.braceStatement : types$1.braceExpression);
+  this.state.exprAllowed = true;
+};
+
+types.dollarBraceL.updateContext = function () {
+  this.state.context.push(types$1.templateQuasi);
+  this.state.exprAllowed = true;
+};
+
+types.parenL.updateContext = function (prevType) {
+  var statementParens = prevType === types._if || prevType === types._for || prevType === types._with || prevType === types._while;
+  this.state.context.push(statementParens ? types$1.parenStatement : types$1.parenExpression);
+  this.state.exprAllowed = true;
+};
+
+types.incDec.updateContext = function () {
+  // tokExprAllowed stays unchanged
+};
+
+types._function.updateContext = function () {
+  if (this.curContext() !== types$1.braceStatement) {
+    this.state.context.push(types$1.functionExpression);
+  }
+
+  this.state.exprAllowed = false;
+};
+
+types.backQuote.updateContext = function () {
+  if (this.curContext() === types$1.template) {
+    this.state.context.pop();
+  } else {
+    this.state.context.push(types$1.template);
+  }
+  this.state.exprAllowed = false;
+};
+
+// These are used when `options.locations` is on, for the
+// `startLoc` and `endLoc` properties.
+
+var Position = function Position(line, col) {
+  classCallCheck(this, Position);
+
+  this.line = line;
+  this.column = col;
+};
+
+var SourceLocation = function SourceLocation(start, end) {
+  classCallCheck(this, SourceLocation);
+
+  this.start = start;
+  this.end = end;
+};
+
+// The `getLineInfo` function is mostly useful when the
+// `locations` option is off (for performance reasons) and you
+// want to find the line/column position for a given character
+// offset. `input` should be the code string that the offset refers
+// into.
+
+function getLineInfo(input, offset) {
+  for (var line = 1, cur = 0;;) {
+    lineBreakG.lastIndex = cur;
+    var match = lineBreakG.exec(input);
+    if (match && match.index < offset) {
+      ++line;
+      cur = match.index + match[0].length;
+    } else {
+      return new Position(line, offset - cur);
+    }
+  }
+}
+
+var State = function () {
+  function State() {
+    classCallCheck(this, State);
+  }
+
+  State.prototype.init = function init(options, input) {
+    this.strict = options.strictMode === false ? false : options.sourceType === "module";
+
+    this.input = input;
+
+    this.potentialArrowAt = -1;
+
+    this.inMethod = this.inFunction = this.inGenerator = this.inAsync = this.inPropertyName = this.inType = this.noAnonFunctionType = false;
+
+    this.labels = [];
+
+    this.decorators = [];
+
+    this.tokens = [];
+
+    this.comments = [];
+
+    this.trailingComments = [];
+    this.leadingComments = [];
+    this.commentStack = [];
+
+    this.pos = this.lineStart = 0;
+    this.curLine = options.startLine;
+
+    this.type = types.eof;
+    this.value = null;
+    this.start = this.end = this.pos;
+    this.startLoc = this.endLoc = this.curPosition();
+
+    this.lastTokEndLoc = this.lastTokStartLoc = null;
+    this.lastTokStart = this.lastTokEnd = this.pos;
+
+    this.context = [types$1.braceStatement];
+    this.exprAllowed = true;
+
+    this.containsEsc = this.containsOctal = false;
+    this.octalPosition = null;
+
+    this.exportedIdentifiers = [];
+
+    return this;
+  };
+
+  // TODO
+
+
+  // TODO
+
+
+  // Used to signify the start of a potential arrow function
+
+
+  // Flags to track whether we are in a function, a generator.
+
+
+  // Labels in scope.
+
+
+  // Leading decorators.
+
+
+  // Token store.
+
+
+  // Comment store.
+
+
+  // Comment attachment store
+
+
+  // The current position of the tokenizer in the input.
+
+
+  // Properties of the current token:
+  // Its type
+
+
+  // For tokens that include more information than their type, the value
+
+
+  // Its start and end offset
+
+
+  // And, if locations are used, the {line, column} object
+  // corresponding to those offsets
+
+
+  // Position information for the previous token
+
+
+  // The context stack is used to superficially track syntactic
+  // context to predict whether a regular expression is allowed in a
+  // given position.
+
+
+  // Used to signal to callers of `readWord1` whether the word
+  // contained any escape sequences. This is needed because words with
+  // escape sequences must not be interpreted as keywords.
+
+
+  // TODO
+
+
+  // Names of exports store. `default` is stored as a name for both
+  // `export default foo;` and `export { foo as default };`.
+
+
+  State.prototype.curPosition = function curPosition() {
+    return new Position(this.curLine, this.pos - this.lineStart);
+  };
+
+  State.prototype.clone = function clone(skipArrays) {
+    var state = new State();
+    for (var key in this) {
+      var val = this[key];
+
+      if ((!skipArrays || key === "context") && Array.isArray(val)) {
+        val = val.slice();
+      }
+
+      state[key] = val;
+    }
+    return state;
+  };
+
+  return State;
+}();
+
+// Object type used to represent tokens. Note that normally, tokens
+// simply exist as properties on the parser object. This is only
+// used for the onToken callback and the external tokenizer.
+
+var Token = function Token(state) {
+  classCallCheck(this, Token);
+
+  this.type = state.type;
+  this.value = state.value;
+  this.start = state.start;
+  this.end = state.end;
+  this.loc = new SourceLocation(state.startLoc, state.endLoc);
+};
+
+// ## Tokenizer
+
+function codePointToString(code) {
+  // UTF-16 Decoding
+  if (code <= 0xFFFF) {
+    return String.fromCharCode(code);
+  } else {
+    return String.fromCharCode((code - 0x10000 >> 10) + 0xD800, (code - 0x10000 & 1023) + 0xDC00);
+  }
+}
+
+var Tokenizer = function () {
+  function Tokenizer(options, input) {
+    classCallCheck(this, Tokenizer);
+
+    this.state = new State();
+    this.state.init(options, input);
+  }
+
+  // Move to the next token
+
+  Tokenizer.prototype.next = function next() {
+    if (!this.isLookahead) {
+      this.state.tokens.push(new Token(this.state));
+    }
+
+    this.state.lastTokEnd = this.state.end;
+    this.state.lastTokStart = this.state.start;
+    this.state.lastTokEndLoc = this.state.endLoc;
+    this.state.lastTokStartLoc = this.state.startLoc;
+    this.nextToken();
+  };
+
+  // TODO
+
+  Tokenizer.prototype.eat = function eat(type) {
+    if (this.match(type)) {
+      this.next();
+      return true;
+    } else {
+      return false;
+    }
+  };
+
+  // TODO
+
+  Tokenizer.prototype.match = function match(type) {
+    return this.state.type === type;
+  };
+
+  // TODO
+
+  Tokenizer.prototype.isKeyword = function isKeyword$$1(word) {
+    return isKeyword(word);
+  };
+
+  // TODO
+
+  Tokenizer.prototype.lookahead = function lookahead() {
+    var old = this.state;
+    this.state = old.clone(true);
+
+    this.isLookahead = true;
+    this.next();
+    this.isLookahead = false;
+
+    var curr = this.state.clone(true);
+    this.state = old;
+    return curr;
+  };
+
+  // Toggle strict mode. Re-reads the next number or string to please
+  // pedantic tests (`"use strict"; 010;` should fail).
+
+  Tokenizer.prototype.setStrict = function setStrict(strict) {
+    this.state.strict = strict;
+    if (!this.match(types.num) && !this.match(types.string)) return;
+    this.state.pos = this.state.start;
+    while (this.state.pos < this.state.lineStart) {
+      this.state.lineStart = this.input.lastIndexOf("\n", this.state.lineStart - 2) + 1;
+      --this.state.curLine;
+    }
+    this.nextToken();
+  };
+
+  Tokenizer.prototype.curContext = function curContext() {
+    return this.state.context[this.state.context.length - 1];
+  };
+
+  // Read a single token, updating the parser object's token-related
+  // properties.
+
+  Tokenizer.prototype.nextToken = function nextToken() {
+    var curContext = this.curContext();
+    if (!curContext || !curContext.preserveSpace) this.skipSpace();
+
+    this.state.containsOctal = false;
+    this.state.octalPosition = null;
+    this.state.start = this.state.pos;
+    this.state.startLoc = this.state.curPosition();
+    if (this.state.pos >= this.input.length) return this.finishToken(types.eof);
+
+    if (curContext.override) {
+      return curContext.override(this);
+    } else {
+      return this.readToken(this.fullCharCodeAtPos());
+    }
+  };
+
+  Tokenizer.prototype.readToken = function readToken(code) {
+    // Identifier or keyword. '\uXXXX' sequences are allowed in
+    // identifiers, so '\' also dispatches to that.
+    if (isIdentifierStart(code) || code === 92 /* '\' */) {
+        return this.readWord();
+      } else {
+      return this.getTokenFromCode(code);
+    }
+  };
+
+  Tokenizer.prototype.fullCharCodeAtPos = function fullCharCodeAtPos() {
+    var code = this.input.charCodeAt(this.state.pos);
+    if (code <= 0xd7ff || code >= 0xe000) return code;
+
+    var next = this.input.charCodeAt(this.state.pos + 1);
+    return (code << 10) + next - 0x35fdc00;
+  };
+
+  Tokenizer.prototype.pushComment = function pushComment(block, text, start, end, startLoc, endLoc) {
+    var comment = {
+      type: block ? "CommentBlock" : "CommentLine",
+      value: text,
+      start: start,
+      end: end,
+      loc: new SourceLocation(startLoc, endLoc)
+    };
+
+    if (!this.isLookahead) {
+      this.state.tokens.push(comment);
+      this.state.comments.push(comment);
+      this.addComment(comment);
+    }
+  };
+
+  Tokenizer.prototype.skipBlockComment = function skipBlockComment() {
+    var startLoc = this.state.curPosition();
+    var start = this.state.pos;
+    var end = this.input.indexOf("*/", this.state.pos += 2);
+    if (end === -1) this.raise(this.state.pos - 2, "Unterminated comment");
+
+    this.state.pos = end + 2;
+    lineBreakG.lastIndex = start;
+    var match = void 0;
+    while ((match = lineBreakG.exec(this.input)) && match.index < this.state.pos) {
+      ++this.state.curLine;
+      this.state.lineStart = match.index + match[0].length;
+    }
+
+    this.pushComment(true, this.input.slice(start + 2, end), start, this.state.pos, startLoc, this.state.curPosition());
+  };
+
+  Tokenizer.prototype.skipLineComment = function skipLineComment(startSkip) {
+    var start = this.state.pos;
+    var startLoc = this.state.curPosition();
+    var ch = this.input.charCodeAt(this.state.pos += startSkip);
+    while (this.state.pos < this.input.length && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) {
+      ++this.state.pos;
+      ch = this.input.charCodeAt(this.state.pos);
+    }
+
+    this.pushComment(false, this.input.slice(start + startSkip, this.state.pos), start, this.state.pos, startLoc, this.state.curPosition());
+  };
+
+  // Called at the start of the parse and after every token. Skips
+  // whitespace and comments, and.
+
+  Tokenizer.prototype.skipSpace = function skipSpace() {
+    loop: while (this.state.pos < this.input.length) {
+      var ch = this.input.charCodeAt(this.state.pos);
+      switch (ch) {
+        case 32:case 160:
+          // ' '
+          ++this.state.pos;
+          break;
+
+        case 13:
+          if (this.input.charCodeAt(this.state.pos + 1) === 10) {
+            ++this.state.pos;
+          }
+
+        case 10:case 8232:case 8233:
+          ++this.state.pos;
+          ++this.state.curLine;
+          this.state.lineStart = this.state.pos;
+          break;
+
+        case 47:
+          // '/'
+          switch (this.input.charCodeAt(this.state.pos + 1)) {
+            case 42:
+              // '*'
+              this.skipBlockComment();
+              break;
+
+            case 47:
+              this.skipLineComment(2);
+              break;
+
+            default:
+              break loop;
+          }
+          break;
+
+        default:
+          if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
+            ++this.state.pos;
+          } else {
+            break loop;
+          }
+      }
+    }
+  };
+
+  // Called at the end of every token. Sets `end`, `val`, and
+  // maintains `context` and `exprAllowed`, and skips the space after
+  // the token, so that the next one's `start` will point at the
+  // right position.
+
+  Tokenizer.prototype.finishToken = function finishToken(type, val) {
+    this.state.end = this.state.pos;
+    this.state.endLoc = this.state.curPosition();
+    var prevType = this.state.type;
+    this.state.type = type;
+    this.state.value = val;
+
+    this.updateContext(prevType);
+  };
+
+  // ### Token reading
+
+  // This is the function that is called to fetch the next token. It
+  // is somewhat obscure, because it works in character codes rather
+  // than characters, and because operator parsing has been inlined
+  // into it.
+  //
+  // All in the name of speed.
+  //
+
+
+  Tokenizer.prototype.readToken_dot = function readToken_dot() {
+    var next = this.input.charCodeAt(this.state.pos + 1);
+    if (next >= 48 && next <= 57) {
+      return this.readNumber(true);
+    }
+
+    var next2 = this.input.charCodeAt(this.state.pos + 2);
+    if (next === 46 && next2 === 46) {
+      // 46 = dot '.'
+      this.state.pos += 3;
+      return this.finishToken(types.ellipsis);
+    } else {
+      ++this.state.pos;
+      return this.finishToken(types.dot);
+    }
+  };
+
+  Tokenizer.prototype.readToken_slash = function readToken_slash() {
+    // '/'
+    if (this.state.exprAllowed) {
+      ++this.state.pos;
+      return this.readRegexp();
+    }
+
+    var next = this.input.charCodeAt(this.state.pos + 1);
+    if (next === 61) {
+      return this.finishOp(types.assign, 2);
+    } else {
+      return this.finishOp(types.slash, 1);
+    }
+  };
+
+  Tokenizer.prototype.readToken_mult_modulo = function readToken_mult_modulo(code) {
+    // '%*'
+    var type = code === 42 ? types.star : types.modulo;
+    var width = 1;
+    var next = this.input.charCodeAt(this.state.pos + 1);
+
+    if (next === 42) {
+      // '*'
+      width++;
+      next = this.input.charCodeAt(this.state.pos + 2);
+      type = types.exponent;
+    }
+
+    if (next === 61) {
+      width++;
+      type = types.assign;
+    }
+
+    return this.finishOp(type, width);
+  };
+
+  Tokenizer.prototype.readToken_pipe_amp = function readToken_pipe_amp(code) {
+    // '|&'
+    var next = this.input.charCodeAt(this.state.pos + 1);
+    if (next === code) return this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2);
+    if (next === 61) return this.finishOp(types.assign, 2);
+    if (code === 124 && next === 125 && this.hasPlugin("flow")) return this.finishOp(types.braceBarR, 2);
+    return this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1);
+  };
+
+  Tokenizer.prototype.readToken_caret = function readToken_caret() {
+    // '^'
+    var next = this.input.charCodeAt(this.state.pos + 1);
+    if (next === 61) {
+      return this.finishOp(types.assign, 2);
+    } else {
+      return this.finishOp(types.bitwiseXOR, 1);
+    }
+  };
+
+  Tokenizer.prototype.readToken_plus_min = function readToken_plus_min(code) {
+    // '+-'
+    var next = this.input.charCodeAt(this.state.pos + 1);
+
+    if (next === code) {
+      if (next === 45 && this.input.charCodeAt(this.state.pos + 2) === 62 && lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.pos))) {
+        // A `-->` line comment
+        this.skipLineComment(3);
+        this.skipSpace();
+        return this.nextToken();
+      }
+      return this.finishOp(types.incDec, 2);
+    }
+
+    if (next === 61) {
+      return this.finishOp(types.assign, 2);
+    } else {
+      return this.finishOp(types.plusMin, 1);
+    }
+  };
+
+  Tokenizer.prototype.readToken_lt_gt = function readToken_lt_gt(code) {
+    // '<>'
+    var next = this.input.charCodeAt(this.state.pos + 1);
+    var size = 1;
+
+    if (next === code) {
+      size = code === 62 && this.input.charCodeAt(this.state.pos + 2) === 62 ? 3 : 2;
+      if (this.input.charCodeAt(this.state.pos + size) === 61) return this.finishOp(types.assign, size + 1);
+      return this.finishOp(types.bitShift, size);
+    }
+
+    if (next === 33 && code === 60 && this.input.charCodeAt(this.state.pos + 2) === 45 && this.input.charCodeAt(this.state.pos + 3) === 45) {
+      if (this.inModule) this.unexpected();
+      // `<!--`, an XML-style comment that should be interpreted as a line comment
+      this.skipLineComment(4);
+      this.skipSpace();
+      return this.nextToken();
+    }
+
+    if (next === 61) {
+      // <= | >=
+      size = 2;
+    }
+
+    return this.finishOp(types.relational, size);
+  };
+
+  Tokenizer.prototype.readToken_eq_excl = function readToken_eq_excl(code) {
+    // '=!'
+    var next = this.input.charCodeAt(this.state.pos + 1);
+    if (next === 61) return this.finishOp(types.equality, this.input.charCodeAt(this.state.pos + 2) === 61 ? 3 : 2);
+    if (code === 61 && next === 62) {
+      // '=>'
+      this.state.pos += 2;
+      return this.finishToken(types.arrow);
+    }
+    return this.finishOp(code === 61 ? types.eq : types.prefix, 1);
+  };
+
+  Tokenizer.prototype.getTokenFromCode = function getTokenFromCode(code) {
+    switch (code) {
+      // The interpretation of a dot depends on whether it is followed
+      // by a digit or another two dots.
+      case 46:
+        // '.'
+        return this.readToken_dot();
+
+      // Punctuation tokens.
+      case 40:
+        ++this.state.pos;return this.finishToken(types.parenL);
+      case 41:
+        ++this.state.pos;return this.finishToken(types.parenR);
+      case 59:
+        ++this.state.pos;return this.finishToken(types.semi);
+      case 44:
+        ++this.state.pos;return this.finishToken(types.comma);
+      case 91:
+        ++this.state.pos;return this.finishToken(types.bracketL);
+      case 93:
+        ++this.state.pos;return this.finishToken(types.bracketR);
+
+      case 123:
+        if (this.hasPlugin("flow") && this.input.charCodeAt(this.state.pos + 1) === 124) {
+          return this.finishOp(types.braceBarL, 2);
+        } else {
+          ++this.state.pos;
+          return this.finishToken(types.braceL);
+        }
+
+      case 125:
+        ++this.state.pos;return this.finishToken(types.braceR);
+
+      case 58:
+        if (this.hasPlugin("functionBind") && this.input.charCodeAt(this.state.pos + 1) === 58) {
+          return this.finishOp(types.doubleColon, 2);
+        } else {
+          ++this.state.pos;
+          return this.finishToken(types.colon);
+        }
+
+      case 63:
+        ++this.state.pos;return this.finishToken(types.question);
+      case 64:
+        ++this.state.pos;return this.finishToken(types.at);
+
+      case 96:
+        // '`'
+        ++this.state.pos;
+        return this.finishToken(types.backQuote);
+
+      case 48:
+        // '0'
+        var next = this.input.charCodeAt(this.state.pos + 1);
+        if (next === 120 || next === 88) return this.readRadixNumber(16); // '0x', '0X' - hex number
+        if (next === 111 || next === 79) return this.readRadixNumber(8); // '0o', '0O' - octal number
+        if (next === 98 || next === 66) return this.readRadixNumber(2); // '0b', '0B' - binary number
+      // Anything else beginning with a digit is an integer, octal
+      // number, or float.
+      case 49:case 50:case 51:case 52:case 53:case 54:case 55:case 56:case 57:
+        // 1-9
+        return this.readNumber(false);
+
+      // Quotes produce strings.
+      case 34:case 39:
+        // '"', "'"
+        return this.readString(code);
+
+      // Operators are parsed inline in tiny state machines. '=' (61) is
+      // often referred to. `finishOp` simply skips the amount of
+      // characters it is given as second argument, and returns a token
+      // of the type given by its first argument.
+
+      case 47:
+        // '/'
+        return this.readToken_slash();
+
+      case 37:case 42:
+        // '%*'
+        return this.readToken_mult_modulo(code);
+
+      case 124:case 38:
+        // '|&'
+        return this.readToken_pipe_amp(code);
+
+      case 94:
+        // '^'
+        return this.readToken_caret();
+
+      case 43:case 45:
+        // '+-'
+        return this.readToken_plus_min(code);
+
+      case 60:case 62:
+        // '<>'
+        return this.readToken_lt_gt(code);
+
+      case 61:case 33:
+        // '=!'
+        return this.readToken_eq_excl(code);
+
+      case 126:
+        // '~'
+        return this.finishOp(types.prefix, 1);
+    }
+
+    this.raise(this.state.pos, "Unexpected character '" + codePointToString(code) + "'");
+  };
+
+  Tokenizer.prototype.finishOp = function finishOp(type, size) {
+    var str = this.input.slice(this.state.pos, this.state.pos + size);
+    this.state.pos += size;
+    return this.finishToken(type, str);
+  };
+
+  Tokenizer.prototype.readRegexp = function readRegexp() {
+    var start = this.state.pos;
+    var escaped = void 0,
+        inClass = void 0;
+    for (;;) {
+      if (this.state.pos >= this.input.length) this.raise(start, "Unterminated regular expression");
+      var ch = this.input.charAt(this.state.pos);
+      if (lineBreak.test(ch)) {
+        this.raise(start, "Unterminated regular expression");
+      }
+      if (escaped) {
+        escaped = false;
+      } else {
+        if (ch === "[") {
+          inClass = true;
+        } else if (ch === "]" && inClass) {
+          inClass = false;
+        } else if (ch === "/" && !inClass) {
+          break;
+        }
+        escaped = ch === "\\";
+      }
+      ++this.state.pos;
+    }
+    var content = this.input.slice(start, this.state.pos);
+    ++this.state.pos;
+    // Need to use `readWord1` because '\uXXXX' sequences are allowed
+    // here (don't ask).
+    var mods = this.readWord1();
+    if (mods) {
+      var validFlags = /^[gmsiyu]*$/;
+      if (!validFlags.test(mods)) this.raise(start, "Invalid regular expression flag");
+    }
+    return this.finishToken(types.regexp, {
+      pattern: content,
+      flags: mods
+    });
+  };
+
+  // Read an integer in the given radix. Return null if zero digits
+  // were read, the integer value otherwise. When `len` is given, this
+  // will return `null` unless the integer has exactly `len` digits.
+
+  Tokenizer.prototype.readInt = function readInt(radix, len) {
+    var start = this.state.pos;
+    var total = 0;
+
+    for (var i = 0, e = len == null ? Infinity : len; i < e; ++i) {
+      var code = this.input.charCodeAt(this.state.pos);
+      var val = void 0;
+      if (code >= 97) {
+        val = code - 97 + 10; // a
+      } else if (code >= 65) {
+        val = code - 65 + 10; // A
+      } else if (code >= 48 && code <= 57) {
+        val = code - 48; // 0-9
+      } else {
+        val = Infinity;
+      }
+      if (val >= radix) break;
+      ++this.state.pos;
+      total = total * radix + val;
+    }
+    if (this.state.pos === start || len != null && this.state.pos - start !== len) return null;
+
+    return total;
+  };
+
+  Tokenizer.prototype.readRadixNumber = function readRadixNumber(radix) {
+    this.state.pos += 2; // 0x
+    var val = this.readInt(radix);
+    if (val == null) this.raise(this.state.start + 2, "Expected number in radix " + radix);
+    if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.state.pos, "Identifier directly after number");
+    return this.finishToken(types.num, val);
+  };
+
+  // Read an integer, octal integer, or floating-point number.
+
+  Tokenizer.prototype.readNumber = function readNumber(startsWithDot) {
+    var start = this.state.pos;
+    var octal = this.input.charCodeAt(this.state.pos) === 48;
+    var isFloat = false;
+
+    if (!startsWithDot && this.readInt(10) === null) this.raise(start, "Invalid number");
+    var next = this.input.charCodeAt(this.state.pos);
+    if (next === 46) {
+      // '.'
+      ++this.state.pos;
+      this.readInt(10);
+      isFloat = true;
+      next = this.input.charCodeAt(this.state.pos);
+    }
+    if (next === 69 || next === 101) {
+      // 'eE'
+      next = this.input.charCodeAt(++this.state.pos);
+      if (next === 43 || next === 45) ++this.state.pos; // '+-'
+      if (this.readInt(10) === null) this.raise(start, "Invalid number");
+      isFloat = true;
+    }
+    if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.state.pos, "Identifier directly after number");
+
+    var str = this.input.slice(start, this.state.pos);
+    var val = void 0;
+    if (isFloat) {
+      val = parseFloat(str);
+    } else if (!octal || str.length === 1) {
+      val = parseInt(str, 10);
+    } else if (/[89]/.test(str) || this.state.strict) {
+      this.raise(start, "Invalid number");
+    } else {
+      val = parseInt(str, 8);
+    }
+    return this.finishToken(types.num, val);
+  };
+
+  // Read a string value, interpreting backslash-escapes.
+
+  Tokenizer.prototype.readCodePoint = function readCodePoint() {
+    var ch = this.input.charCodeAt(this.state.pos);
+    var code = void 0;
+
+    if (ch === 123) {
+      var codePos = ++this.state.pos;
+      code = this.readHexChar(this.input.indexOf("}", this.state.pos) - this.state.pos);
+      ++this.state.pos;
+      if (code > 0x10FFFF) this.raise(codePos, "Code point out of bounds");
+    } else {
+      code = this.readHexChar(4);
+    }
+    return code;
+  };
+
+  Tokenizer.prototype.readString = function readString(quote) {
+    var out = "",
+        chunkStart = ++this.state.pos;
+    for (;;) {
+      if (this.state.pos >= this.input.length) this.raise(this.state.start, "Unterminated string constant");
+      var ch = this.input.charCodeAt(this.state.pos);
+      if (ch === quote) break;
+      if (ch === 92) {
+        // '\'
+        out += this.input.slice(chunkStart, this.state.pos);
+        out += this.readEscapedChar(false);
+        chunkStart = this.state.pos;
+      } else {
+        if (isNewLine(ch)) this.raise(this.state.start, "Unterminated string constant");
+        ++this.state.pos;
+      }
+    }
+    out += this.input.slice(chunkStart, this.state.pos++);
+    return this.finishToken(types.string, out);
+  };
+
+  // Reads template string tokens.
+
+  Tokenizer.prototype.readTmplToken = function readTmplToken() {
+    var out = "",
+        chunkStart = this.state.pos;
+    for (;;) {
+      if (this.state.pos >= this.input.length) this.raise(this.state.start, "Unterminated template");
+      var ch = this.input.charCodeAt(this.state.pos);
+      if (ch === 96 || ch === 36 && this.input.charCodeAt(this.state.pos + 1) === 123) {
+        // '`', '${'
+        if (this.state.pos === this.state.start && this.match(types.template)) {
+          if (ch === 36) {
+            this.state.pos += 2;
+            return this.finishToken(types.dollarBraceL);
+          } else {
+            ++this.state.pos;
+            return this.finishToken(types.backQuote);
+          }
+        }
+        out += this.input.slice(chunkStart, this.state.pos);
+        return this.finishToken(types.template, out);
+      }
+      if (ch === 92) {
+        // '\'
+        out += this.input.slice(chunkStart, this.state.pos);
+        out += this.readEscapedChar(true);
+        chunkStart = this.state.pos;
+      } else if (isNewLine(ch)) {
+        out += this.input.slice(chunkStart, this.state.pos);
+        ++this.state.pos;
+        switch (ch) {
+          case 13:
+            if (this.input.charCodeAt(this.state.pos) === 10) ++this.state.pos;
+          case 10:
+            out += "\n";
+            break;
+          default:
+            out += String.fromCharCode(ch);
+            break;
+        }
+        ++this.state.curLine;
+        this.state.lineStart = this.state.pos;
+        chunkStart = this.state.pos;
+      } else {
+        ++this.state.pos;
+      }
+    }
+  };
+
+  // Used to read escaped characters
+
+  Tokenizer.prototype.readEscapedChar = function readEscapedChar(inTemplate) {
+    var ch = this.input.charCodeAt(++this.state.pos);
+    ++this.state.pos;
+    switch (ch) {
+      case 110:
+        return "\n"; // 'n' -> '\n'
+      case 114:
+        return "\r"; // 'r' -> '\r'
+      case 120:
+        return String.fromCharCode(this.readHexChar(2)); // 'x'
+      case 117:
+        return codePointToString(this.readCodePoint()); // 'u'
+      case 116:
+        return "\t"; // 't' -> '\t'
+      case 98:
+        return "\b"; // 'b' -> '\b'
+      case 118:
+        return "\x0B"; // 'v' -> '\u000b'
+      case 102:
+        return "\f"; // 'f' -> '\f'
+      case 13:
+        if (this.input.charCodeAt(this.state.pos) === 10) ++this.state.pos; // '\r\n'
+      case 10:
+        // ' \n'
+        this.state.lineStart = this.state.pos;
+        ++this.state.curLine;
+        return "";
+      default:
+        if (ch >= 48 && ch <= 55) {
+          var octalStr = this.input.substr(this.state.pos - 1, 3).match(/^[0-7]+/)[0];
+          var octal = parseInt(octalStr, 8);
+          if (octal > 255) {
+            octalStr = octalStr.slice(0, -1);
+            octal = parseInt(octalStr, 8);
+          }
+          if (octal > 0) {
+            if (!this.state.containsOctal) {
+              this.state.containsOctal = true;
+              this.state.octalPosition = this.state.pos - 2;
+            }
+            if (this.state.strict || inTemplate) {
+              this.raise(this.state.pos - 2, "Octal literal in strict mode");
+            }
+          }
+          this.state.pos += octalStr.length - 1;
+          return String.fromCharCode(octal);
+        }
+        return String.fromCharCode(ch);
+    }
+  };
+
+  // Used to read character escape sequences ('\x', '\u', '\U').
+
+  Tokenizer.prototype.readHexChar = function readHexChar(len) {
+    var codePos = this.state.pos;
+    var n = this.readInt(16, len);
+    if (n === null) this.raise(codePos, "Bad character escape sequence");
+    return n;
+  };
+
+  // Read an identifier, and return it as a string. Sets `this.state.containsEsc`
+  // to whether the word contained a '\u' escape.
+  //
+  // Incrementally adds only escaped chars, adding other chunks as-is
+  // as a micro-optimization.
+
+  Tokenizer.prototype.readWord1 = function readWord1() {
+    this.state.containsEsc = false;
+    var word = "",
+        first = true,
+        chunkStart = this.state.pos;
+    while (this.state.pos < this.input.length) {
+      var ch = this.fullCharCodeAtPos();
+      if (isIdentifierChar(ch)) {
+        this.state.pos += ch <= 0xffff ? 1 : 2;
+      } else if (ch === 92) {
+        // "\"
+        this.state.containsEsc = true;
+
+        word += this.input.slice(chunkStart, this.state.pos);
+        var escStart = this.state.pos;
+
+        if (this.input.charCodeAt(++this.state.pos) !== 117) {
+          // "u"
+          this.raise(this.state.pos, "Expecting Unicode escape sequence \\uXXXX");
+        }
+
+        ++this.state.pos;
+        var esc = this.readCodePoint();
+        if (!(first ? isIdentifierStart : isIdentifierChar)(esc, true)) {
+          this.raise(escStart, "Invalid Unicode escape");
+        }
+
+        word += codePointToString(esc);
+        chunkStart = this.state.pos;
+      } else {
+        break;
+      }
+      first = false;
+    }
+    return word + this.input.slice(chunkStart, this.state.pos);
+  };
+
+  // Read an identifier or keyword token. Will check for reserved
+  // words when necessary.
+
+  Tokenizer.prototype.readWord = function readWord() {
+    var word = this.readWord1();
+    var type = types.name;
+    if (!this.state.containsEsc && this.isKeyword(word)) {
+      type = keywords[word];
+    }
+    return this.finishToken(type, word);
+  };
+
+  Tokenizer.prototype.braceIsBlock = function braceIsBlock(prevType) {
+    if (prevType === types.colon) {
+      var parent = this.curContext();
+      if (parent === types$1.braceStatement || parent === types$1.braceExpression) {
+        return !parent.isExpr;
+      }
+    }
+
+    if (prevType === types._return) {
+      return lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start));
+    }
+
+    if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR) {
+      return true;
+    }
+
+    if (prevType === types.braceL) {
+      return this.curContext() === types$1.braceStatement;
+    }
+
+    return !this.state.exprAllowed;
+  };
+
+  Tokenizer.prototype.updateContext = function updateContext(prevType) {
+    var type = this.state.type;
+    var update = void 0;
+
+    if (type.keyword && prevType === types.dot) {
+      this.state.exprAllowed = false;
+    } else if (update = type.updateContext) {
+      update.call(this, prevType);
+    } else {
+      this.state.exprAllowed = type.beforeExpr;
+    }
+  };
+
+  return Tokenizer;
+}();
+
+var plugins = {};
+var frozenDeprecatedWildcardPluginList = ["jsx", "doExpressions", "objectRestSpread", "decorators", "classProperties", "exportExtensions", "asyncGenerators", "functionBind", "functionSent", "dynamicImport", "flow"];
+
+var Parser = function (_Tokenizer) {
+  inherits(Parser, _Tokenizer);
+
+  function Parser(options, input) {
+    classCallCheck(this, Parser);
+
+    options = getOptions(options);
+
+    var _this = possibleConstructorReturn(this, _Tokenizer.call(this, options, input));
+
+    _this.options = options;
+    _this.inModule = _this.options.sourceType === "module";
+    _this.input = input;
+    _this.plugins = _this.loadPlugins(_this.options.plugins);
+    _this.filename = options.sourceFilename;
+
+    // If enabled, skip leading hashbang line.
+    if (_this.state.pos === 0 && _this.input[0] === "#" && _this.input[1] === "!") {
+      _this.skipLineComment(2);
+    }
+    return _this;
+  }
+
+  Parser.prototype.isReservedWord = function isReservedWord(word) {
+    if (word === "await") {
+      return this.inModule;
+    } else {
+      return reservedWords[6](word);
+    }
+  };
+
+  Parser.prototype.hasPlugin = function hasPlugin(name) {
+    if (this.plugins["*"] && frozenDeprecatedWildcardPluginList.indexOf(name) > -1) {
+      return true;
+    }
+
+    return !!this.plugins[name];
+  };
+
+  Parser.prototype.extend = function extend(name, f) {
+    this[name] = f(this[name]);
+  };
+
+  Parser.prototype.loadAllPlugins = function loadAllPlugins() {
+    var _this2 = this;
+
+    // ensure flow plugin loads last, also ensure estree is not loaded with *
+    var pluginNames = Object.keys(plugins).filter(function (name) {
+      return name !== "flow" && name !== "estree";
+    });
+    pluginNames.push("flow");
+
+    pluginNames.forEach(function (name) {
+      var plugin = plugins[name];
+      if (plugin) plugin(_this2);
+    });
+  };
+
+  Parser.prototype.loadPlugins = function loadPlugins(pluginList) {
+    // TODO: Deprecate "*" option in next major version of Babylon
+    if (pluginList.indexOf("*") >= 0) {
+      this.loadAllPlugins();
+
+      return { "*": true };
+    }
+
+    var pluginMap = {};
+
+    if (pluginList.indexOf("flow") >= 0) {
+      // ensure flow plugin loads last
+      pluginList = pluginList.filter(function (plugin) {
+        return plugin !== "flow";
+      });
+      pluginList.push("flow");
+    }
+
+    if (pluginList.indexOf("estree") >= 0) {
+      // ensure estree plugin loads first
+      pluginList = pluginList.filter(function (plugin) {
+        return plugin !== "estree";
+      });
+      pluginList.unshift("estree");
+    }
+
+    for (var _iterator = pluginList, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
+      var _ref;
+
+      if (_isArray) {
+        if (_i >= _iterator.length) break;
+        _ref = _iterator[_i++];
+      } else {
+        _i = _iterator.next();
+        if (_i.done) break;
+        _ref = _i.value;
+      }
+
+      var name = _ref;
+
+      if (!pluginMap[name]) {
+        pluginMap[name] = true;
+
+        var plugin = plugins[name];
+        if (plugin) plugin(this);
+      }
+    }
+
+    return pluginMap;
+  };
+
+  Parser.prototype.parse = function parse() {
+    var file = this.startNode();
+    var program = this.startNode();
+    this.nextToken();
+    return this.parseTopLevel(file, program);
+  };
+
+  return Parser;
+}(Tokenizer);
+
+var pp = Parser.prototype;
+
+// ## Parser utilities
+
+// TODO
+
+pp.addExtra = function (node, key, val) {
+  if (!node) return;
+
+  var extra = node.extra = node.extra || {};
+  extra[key] = val;
+};
+
+// TODO
+
+pp.isRelational = function (op) {
+  return this.match(types.relational) && this.state.value === op;
+};
+
+// TODO
+
+pp.expectRelational = function (op) {
+  if (this.isRelational(op)) {
+    this.next();
+  } else {
+    this.unexpected(null, types.relational);
+  }
+};
+
+// Tests whether parsed token is a contextual keyword.
+
+pp.isContextual = function (name) {
+  return this.match(types.name) && this.state.value === name;
+};
+
+// Consumes contextual keyword if possible.
+
+pp.eatContextual = function (name) {
+  return this.state.value === name && this.eat(types.name);
+};
+
+// Asserts that following token is given contextual keyword.
+
+pp.expectContextual = function (name, message) {
+  if (!this.eatContextual(name)) this.unexpected(null, message);
+};
+
+// Test whether a semicolon can be inserted at the current position.
+
+pp.canInsertSemicolon = function () {
+  return this.match(types.eof) || this.match(types.braceR) || lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start));
+};
+
+// TODO
+
+pp.isLineTerminator = function () {
+  return this.eat(types.semi) || this.canInsertSemicolon();
+};
+
+// Consume a semicolon, or, failing that, see if we are allowed to
+// pretend that there is a semicolon at this position.
+
+pp.semicolon = function () {
+  if (!this.isLineTerminator()) this.unexpected(null, types.semi);
+};
+
+// Expect a token of a given type. If found, consume it, otherwise,
+// raise an unexpected token error at given pos.
+
+pp.expect = function (type, pos) {
+  return this.eat(type) || this.unexpected(pos, type);
+};
+
+// Raise an unexpected token error. Can take the expected token type
+// instead of a message string.
+
+pp.unexpected = function (pos) {
+  var messageOrType = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "Unexpected token";
+
+  if (messageOrType && (typeof messageOrType === "undefined" ? "undefined" : _typeof(messageOrType)) === "object" && messageOrType.label) {
+    messageOrType = "Unexpected token, expected " + messageOrType.label;
+  }
+  this.raise(pos != null ? pos : this.state.start, messageOrType);
+};
+
+/* eslint max-len: 0 */
+
+var pp$1 = Parser.prototype;
+
+// ### Statement parsing
+
+// Parse a program. Initializes the parser, reads any number of
+// statements, and wraps them in a Program node.  Optionally takes a
+// `program` argument.  If present, the statements will be appended
+// to its body instead of creating a new node.
+
+pp$1.parseTopLevel = function (file, program) {
+  program.sourceType = this.options.sourceType;
+
+  this.parseBlockBody(program, true, true, types.eof);
+
+  file.program = this.finishNode(program, "Program");
+  file.comments = this.state.comments;
+  file.tokens = this.state.tokens;
+
+  return this.finishNode(file, "File");
+};
+
+var loopLabel = { kind: "loop" };
+var switchLabel = { kind: "switch" };
+
+// TODO
+
+pp$1.stmtToDirective = function (stmt) {
+  var expr = stmt.expression;
+
+  var directiveLiteral = this.startNodeAt(expr.start, expr.loc.start);
+  var directive = this.startNodeAt(stmt.start, stmt.loc.start);
+
+  var raw = this.input.slice(expr.start, expr.end);
+  var val = directiveLiteral.value = raw.slice(1, -1); // remove quotes
+
+  this.addExtra(directiveLiteral, "raw", raw);
+  this.addExtra(directiveLiteral, "rawValue", val);
+
+  directive.value = this.finishNodeAt(directiveLiteral, "DirectiveLiteral", expr.end, expr.loc.end);
+
+  return this.finishNodeAt(directive, "Directive", stmt.end, stmt.loc.end);
+};
+
+// Parse a single statement.
+//
+// If expecting a statement and finding a slash operator, parse a
+// regular expression literal. This is to handle cases like
+// `if (foo) /blah/.exec(foo)`, where looking at the previous token
+// does not help.
+
+pp$1.parseStatement = function (declaration, topLevel) {
+  if (this.match(types.at)) {
+    this.parseDecorators(true);
+  }
+
+  var starttype = this.state.type;
+  var node = this.startNode();
+
+  // Most types of statements are recognized by the keyword they
+  // start with. Many are trivial to parse, some require a bit of
+  // complexity.
+
+  switch (starttype) {
+    case types._break:case types._continue:
+      return this.parseBreakContinueStatement(node, starttype.keyword);
+    case types._debugger:
+      return this.parseDebuggerStatement(node);
+    case types._do:
+      return this.parseDoStatement(node);
+    case types._for:
+      return this.parseForStatement(node);
+    case types._function:
+      if (!declaration) this.unexpected();
+      return this.parseFunctionStatement(node);
+
+    case types._class:
+      if (!declaration) this.unexpected();
+      return this.parseClass(node, true);
+
+    case types._if:
+      return this.parseIfStatement(node);
+    case types._return:
+      return this.parseReturnStatement(node);
+    case types._switch:
+      return this.parseSwitchStatement(node);
+    case types._throw:
+      return this.parseThrowStatement(node);
+    case types._try:
+      return this.parseTryStatement(node);
+
+    case types._let:
+    case types._const:
+      if (!declaration) this.unexpected(); // NOTE: falls through to _var
+
+    case types._var:
+      return this.parseVarStatement(node, starttype);
+
+    case types._while:
+      return this.parseWhileStatement(node);
+    case types._with:
+      return this.parseWithStatement(node);
+    case types.braceL:
+      return this.parseBlock();
+    case types.semi:
+      return this.parseEmptyStatement(node);
+    case types._export:
+    case types._import:
+      if (this.hasPlugin("dynamicImport") && this.lookahead().type === types.parenL) break;
+
+      if (!this.options.allowImportExportEverywhere) {
+        if (!topLevel) {
+          this.raise(this.state.start, "'import' and 'export' may only appear at the top level");
+        }
+
+        if (!this.inModule) {
+          this.raise(this.state.start, "'import' and 'export' may appear only with 'sourceType: module'");
+        }
+      }
+      return starttype === types._import ? this.parseImport(node) : this.parseExport(node);
+
+    case types.name:
+      if (this.state.value === "async") {
+        // peek ahead and see if next token is a function
+        var state = this.state.clone();
+        this.next();
+        if (this.match(types._function) && !this.canInsertSemicolon()) {
+          this.expect(types._function);
+          return this.parseFunction(node, true, false, true);
+        } else {
+          this.state = state;
+        }
+      }
+  }
+
+  // If the statement does not start with a statement keyword or a
+  // brace, it's an ExpressionStatement or LabeledStatement. We
+  // simply start parsing an expression, and afterwards, if the
+  // next token is a colon and the expression was a simple
+  // Identifier node, we switch to interpreting it as a label.
+  var maybeName = this.state.value;
+  var expr = this.parseExpression();
+
+  if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon)) {
+    return this.parseLabeledStatement(node, maybeName, expr);
+  } else {
+    return this.parseExpressionStatement(node, expr);
+  }
+};
+
+pp$1.takeDecorators = function (node) {
+  if (this.state.decorators.length) {
+    node.decorators = this.state.decorators;
+    this.state.decorators = [];
+  }
+};
+
+pp$1.parseDecorators = function (allowExport) {
+  while (this.match(types.at)) {
+    var decorator = this.parseDecorator();
+    this.state.decorators.push(decorator);
+  }
+
+  if (allowExport && this.match(types._export)) {
+    return;
+  }
+
+  if (!this.match(types._class)) {
+    this.raise(this.state.start, "Leading decorators must be attached to a class declaration");
+  }
+};
+
+pp$1.parseDecorator = function () {
+  if (!this.hasPlugin("decorators")) {
+    this.unexpected();
+  }
+  var node = this.startNode();
+  this.next();
+  node.expression = this.parseMaybeAssign();
+  return this.finishNode(node, "Decorator");
+};
+
+pp$1.parseBreakContinueStatement = function (node, keyword) {
+  var isBreak = keyword === "break";
+  this.next();
+
+  if (this.isLineTerminator()) {
+    node.label = null;
+  } else if (!this.match(types.name)) {
+    this.unexpected();
+  } else {
+    node.label = this.parseIdentifier();
+    this.semicolon();
+  }
+
+  // Verify that there is an actual destination to break or
+  // continue to.
+  var i = void 0;
+  for (i = 0; i < this.state.labels.length; ++i) {
+    var lab = this.state.labels[i];
+    if (node.label == null || lab.name === node.label.name) {
+      if (lab.kind != null && (isBreak || lab.kind === "loop")) break;
+      if (node.label && isBreak) break;
+    }
+  }
+  if (i === this.state.labels.length) this.raise(node.start, "Unsyntactic " + keyword);
+  return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement");
+};
+
+pp$1.parseDebuggerStatement = function (node) {
+  this.next();
+  this.semicolon();
+  return this.finishNode(node, "DebuggerStatement");
+};
+
+pp$1.parseDoStatement = function (node) {
+  this.next();
+  this.state.labels.push(loopLabel);
+  node.body = this.parseStatement(false);
+  this.state.labels.pop();
+  this.expect(types._while);
+  node.test = this.parseParenExpression();
+  this.eat(types.semi);
+  return this.finishNode(node, "DoWhileStatement");
+};
+
+// Disambiguating between a `for` and a `for`/`in` or `for`/`of`
+// loop is non-trivial. Basically, we have to parse the init `var`
+// statement or expression, disallowing the `in` operator (see
+// the second parameter to `parseExpression`), and then check
+// whether the next token is `in` or `of`. When there is no init
+// part (semicolon immediately after the opening parenthesis), it
+// is a regular `for` loop.
+
+pp$1.parseForStatement = function (node) {
+  this.next();
+  this.state.labels.push(loopLabel);
+
+  var forAwait = false;
+  if (this.hasPlugin("asyncGenerators") && this.state.inAsync && this.isContextual("await")) {
+    forAwait = true;
+    this.next();
+  }
+  this.expect(types.parenL);
+
+  if (this.match(types.semi)) {
+    if (forAwait) {
+      this.unexpected();
+    }
+    return this.parseFor(node, null);
+  }
+
+  if (this.match(types._var) || this.match(types._let) || this.match(types._const)) {
+    var _init = this.startNode();
+    var varKind = this.state.type;
+    this.next();
+    this.parseVar(_init, true, varKind);
+    this.finishNode(_init, "VariableDeclaration");
+
+    if (this.match(types._in) || this.isContextual("of")) {
+      if (_init.declarations.length === 1 && !_init.declarations[0].init) {
+        return this.parseForIn(node, _init, forAwait);
+      }
+    }
+    if (forAwait) {
+      this.unexpected();
+    }
+    return this.parseFor(node, _init);
+  }
+
+  var refShorthandDefaultPos = { start: 0 };
+  var init = this.parseExpression(true, refShorthandDefaultPos);
+  if (this.match(types._in) || this.isContextual("of")) {
+    var description = this.isContextual("of") ? "for-of statement" : "for-in statement";
+    this.toAssignable(init, undefined, description);
+    this.checkLVal(init, undefined, undefined, description);
+    return this.parseForIn(node, init, forAwait);
+  } else if (refShorthandDefaultPos.start) {
+    this.unexpected(refShorthandDefaultPos.start);
+  }
+  if (forAwait) {
+    this.unexpected();
+  }
+  return this.parseFor(node, init);
+};
+
+pp$1.parseFunctionStatement = function (node) {
+  this.next();
+  return this.parseFunction(node, true);
+};
+
+pp$1.parseIfStatement = function (node) {
+  this.next();
+  node.test = this.parseParenExpression();
+  node.consequent = this.parseStatement(false);
+  node.alternate = this.eat(types._else) ? this.parseStatement(false) : null;
+  return this.finishNode(node, "IfStatement");
+};
+
+pp$1.parseReturnStatement = function (node) {
+  if (!this.state.inFunction && !this.options.allowReturnOutsideFunction) {
+    this.raise(this.state.start, "'return' outside of function");
+  }
+
+  this.next();
+
+  // In `return` (and `break`/`continue`), the keywords with
+  // optional arguments, we eagerly look for a semicolon or the
+  // possibility to insert one.
+
+  if (this.isLineTerminator()) {
+    node.argument = null;
+  } else {
+    node.argument = this.parseExpression();
+    this.semicolon();
+  }
+
+  return this.finishNode(node, "ReturnStatement");
+};
+
+pp$1.parseSwitchStatement = function (node) {
+  this.next();
+  node.discriminant = this.parseParenExpression();
+  node.cases = [];
+  this.expect(types.braceL);
+  this.state.labels.push(switchLabel);
+
+  // Statements under must be grouped (by label) in SwitchCase
+  // nodes. `cur` is used to keep the node that we are currently
+  // adding statements to.
+
+  var cur = void 0;
+  for (var sawDefault; !this.match(types.braceR);) {
+    if (this.match(types._case) || this.match(types._default)) {
+      var isCase = this.match(types._case);
+      if (cur) this.finishNode(cur, "SwitchCase");
+      node.cases.push(cur = this.startNode());
+      cur.consequent = [];
+      this.next();
+      if (isCase) {
+        cur.test = this.parseExpression();
+      } else {
+        if (sawDefault) this.raise(this.state.lastTokStart, "Multiple default clauses");
+        sawDefault = true;
+        cur.test = null;
+      }
+      this.expect(types.colon);
+    } else {
+      if (cur) {
+        cur.consequent.push(this.parseStatement(true));
+      } else {
+        this.unexpected();
+      }
+    }
+  }
+  if (cur) this.finishNode(cur, "SwitchCase");
+  this.next(); // Closing brace
+  this.state.labels.pop();
+  return this.finishNode(node, "SwitchStatement");
+};
+
+pp$1.parseThrowStatement = function (node) {
+  this.next();
+  if (lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start))) this.raise(this.state.lastTokEnd, "Illegal newline after throw");
+  node.argument = this.parseExpression();
+  this.semicolon();
+  return this.finishNode(node, "ThrowStatement");
+};
+
+// Reused empty array added for node fields that are always empty.
+
+var empty = [];
+
+pp$1.parseTryStatement = function (node) {
+  this.next();
+
+  node.block = this.parseBlock();
+  node.handler = null;
+
+  if (this.match(types._catch)) {
+    var clause = this.startNode();
+    this.next();
+
+    this.expect(types.parenL);
+    clause.param = this.parseBindingAtom();
+    this.checkLVal(clause.param, true, Object.create(null), "catch clause");
+    this.expect(types.parenR);
+
+    clause.body = this.parseBlock();
+    node.handler = this.finishNode(clause, "CatchClause");
+  }
+
+  node.guardedHandlers = empty;
+  node.finalizer = this.eat(types._finally) ? this.parseBlock() : null;
+
+  if (!node.handler && !node.finalizer) {
+    this.raise(node.start, "Missing catch or finally clause");
+  }
+
+  return this.finishNode(node, "TryStatement");
+};
+
+pp$1.parseVarStatement = function (node, kind) {
+  this.next();
+  this.parseVar(node, false, kind);
+  this.semicolon();
+  return this.finishNode(node, "VariableDeclaration");
+};
+
+pp$1.parseWhileStatement = function (node) {
+  this.next();
+  node.test = this.parseParenExpression();
+  this.state.labels.push(loopLabel);
+  node.body = this.parseStatement(false);
+  this.state.labels.pop();
+  return this.finishNode(node, "WhileStatement");
+};
+
+pp$1.parseWithStatement = function (node) {
+  if (this.state.strict) this.raise(this.state.start, "'with' in strict mode");
+  this.next();
+  node.object = this.parseParenExpression();
+  node.body = this.parseStatement(false);
+  return this.finishNode(node, "WithStatement");
+};
+
+pp$1.parseEmptyStatement = function (node) {
+  this.next();
+  return this.finishNode(node, "EmptyStatement");
+};
+
+pp$1.parseLabeledStatement = function (node, maybeName, expr) {
+  for (var _iterator = this.state.labels, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
+    var _ref;
+
+    if (_isArray) {
+      if (_i >= _iterator.length) break;
+      _ref = _iterator[_i++];
+    } else {
+      _i = _iterator.next();
+      if (_i.done) break;
+      _ref = _i.value;
+    }
+
+    var _label = _ref;
+
+    if (_label.name === maybeName) {
+      this.raise(expr.start, "Label '" + maybeName + "' is already declared");
+    }
+  }
+
+  var kind = this.state.type.isLoop ? "loop" : this.match(types._switch) ? "switch" : null;
+  for (var i = this.state.labels.length - 1; i >= 0; i--) {
+    var label = this.state.labels[i];
+    if (label.statementStart === node.start) {
+      label.statementStart = this.state.start;
+      label.kind = kind;
+    } else {
+      break;
+    }
+  }
+
+  this.state.labels.push({ name: maybeName, kind: kind, statementStart: this.state.start });
+  node.body = this.parseStatement(true);
+  this.state.labels.pop();
+  node.label = expr;
+  return this.finishNode(node, "LabeledStatement");
+};
+
+pp$1.parseExpressionStatement = function (node, expr) {
+  node.expression = expr;
+  this.semicolon();
+  return this.finishNode(node, "ExpressionStatement");
+};
+
+// Parse a semicolon-enclosed block of statements, handling `"use
+// strict"` declarations when `allowStrict` is true (used for
+// function bodies).
+
+pp$1.parseBlock = function (allowDirectives) {
+  var node = this.startNode();
+  this.expect(types.braceL);
+  this.parseBlockBody(node, allowDirectives, false, types.braceR);
+  return this.finishNode(node, "BlockStatement");
+};
+
+pp$1.isValidDirective = function (stmt) {
+  return stmt.type === "ExpressionStatement" && stmt.expression.type === "StringLiteral" && !stmt.expression.extra.parenthesized;
+};
+
+pp$1.parseBlockBody = function (node, allowDirectives, topLevel, end) {
+  node.body = [];
+  node.directives = [];
+
+  var parsedNonDirective = false;
+  var oldStrict = void 0;
+  var octalPosition = void 0;
+
+  while (!this.eat(end)) {
+    if (!parsedNonDirective && this.state.containsOctal && !octalPosition) {
+      octalPosition = this.state.octalPosition;
+    }
+
+    var stmt = this.parseStatement(true, topLevel);
+
+    if (allowDirectives && !parsedNonDirective && this.isValidDirective(stmt)) {
+      var directive = this.stmtToDirective(stmt);
+      node.directives.push(directive);
+
+      if (oldStrict === undefined && directive.value.value === "use strict") {
+        oldStrict = this.state.strict;
+        this.setStrict(true);
+
+        if (octalPosition) {
+          this.raise(octalPosition, "Octal literal in strict mode");
+        }
+      }
+
+      continue;
+    }
+
+    parsedNonDirective = true;
+    node.body.push(stmt);
+  }
+
+  if (oldStrict === false) {
+    this.setStrict(false);
+  }
+};
+
+// Parse a regular `for` loop. The disambiguation code in
+// `parseStatement` will already have parsed the init statement or
+// expression.
+
+pp$1.parseFor = function (node, init) {
+  node.init = init;
+  this.expect(types.semi);
+  node.test = this.match(types.semi) ? null : this.parseExpression();
+  this.expect(types.semi);
+  node.update = this.match(types.parenR) ? null : this.parseExpression();
+  this.expect(types.parenR);
+  node.body = this.parseStatement(false);
+  this.state.labels.pop();
+  return this.finishNode(node, "ForStatement");
+};
+
+// Parse a `for`/`in` and `for`/`of` loop, which are almost
+// same from parser's perspective.
+
+pp$1.parseForIn = function (node, init, forAwait) {
+  var type = void 0;
+  if (forAwait) {
+    this.eatContextual("of");
+    type = "ForAwaitStatement";
+  } else {
+    type = this.match(types._in) ? "ForInStatement" : "ForOfStatement";
+    this.next();
+  }
+  node.left = init;
+  node.right = this.parseExpression();
+  this.expect(types.parenR);
+  node.body = this.parseStatement(false);
+  this.state.labels.pop();
+  return this.finishNode(node, type);
+};
+
+// Parse a list of variable declarations.
+
+pp$1.parseVar = function (node, isFor, kind) {
+  node.declarations = [];
+  node.kind = kind.keyword;
+  for (;;) {
+    var decl = this.startNode();
+    this.parseVarHead(decl);
+    if (this.eat(types.eq)) {
+      decl.init = this.parseMaybeAssign(isFor);
+    } else if (kind === types._const && !(this.match(types._in) || this.isContextual("of"))) {
+      this.unexpected();
+    } else if (decl.id.type !== "Identifier" && !(isFor && (this.match(types._in) || this.isContextual("of")))) {
+      this.raise(this.state.lastTokEnd, "Complex binding patterns require an initialization value");
+    } else {
+      decl.init = null;
+    }
+    node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
+    if (!this.eat(types.comma)) break;
+  }
+  return node;
+};
+
+pp$1.parseVarHead = function (decl) {
+  decl.id = this.parseBindingAtom();
+  this.checkLVal(decl.id, true, undefined, "variable declaration");
+};
+
+// Parse a function declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp$1.parseFunction = function (node, isStatement, allowExpressionBody, isAsync, optionalId) {
+  var oldInMethod = this.state.inMethod;
+  this.state.inMethod = false;
+
+  this.initFunction(node, isAsync);
+
+  if (this.match(types.star)) {
+    if (node.async && !this.hasPlugin("asyncGenerators")) {
+      this.unexpected();
+    } else {
+      node.generator = true;
+      this.next();
+    }
+  }
+
+  if (isStatement && !optionalId && !this.match(types.name) && !this.match(types._yield)) {
+    this.unexpected();
+  }
+
+  if (this.match(types.name) || this.match(types._yield)) {
+    node.id = this.parseBindingIdentifier();
+  }
+
+  this.parseFunctionParams(node);
+  this.parseFunctionBody(node, allowExpressionBody);
+
+  this.state.inMethod = oldInMethod;
+
+  return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression");
+};
+
+pp$1.parseFunctionParams = function (node) {
+  this.expect(types.parenL);
+  node.params = this.parseBindingList(types.parenR);
+};
+
+// Parse a class declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp$1.parseClass = function (node, isStatement, optionalId) {
+  this.next();
+  this.takeDecorators(node);
+  this.parseClassId(node, isStatement, optionalId);
+  this.parseClassSuper(node);
+  this.parseClassBody(node);
+  return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression");
+};
+
+pp$1.isClassProperty = function () {
+  return this.match(types.eq) || this.isLineTerminator();
+};
+
+pp$1.isClassMutatorStarter = function () {
+  return false;
+};
+
+pp$1.parseClassBody = function (node) {
+  // class bodies are implicitly strict
+  var oldStrict = this.state.strict;
+  this.state.strict = true;
+
+  var hadConstructorCall = false;
+  var hadConstructor = false;
+  var decorators = [];
+  var classBody = this.startNode();
+
+  classBody.body = [];
+
+  this.expect(types.braceL);
+
+  while (!this.eat(types.braceR)) {
+    if (this.eat(types.semi)) {
+      if (decorators.length > 0) {
+        this.raise(this.state.lastTokEnd, "Decorators must not be followed by a semicolon");
+      }
+      continue;
+    }
+
+    if (this.match(types.at)) {
+      decorators.push(this.parseDecorator());
+      continue;
+    }
+
+    var method = this.startNode();
+
+    // steal the decorators if there are any
+    if (decorators.length) {
+      method.decorators = decorators;
+      decorators = [];
+    }
+
+    var isConstructorCall = false;
+    var isMaybeStatic = this.match(types.name) && this.state.value === "static";
+    var isGenerator = this.eat(types.star);
+    var isGetSet = false;
+    var isAsync = false;
+
+    this.parsePropertyName(method);
+
+    method.static = isMaybeStatic && !this.match(types.parenL);
+    if (method.static) {
+      isGenerator = this.eat(types.star);
+      this.parsePropertyName(method);
+    }
+
+    if (!isGenerator) {
+      if (this.isClassProperty()) {
+        classBody.body.push(this.parseClassProperty(method));
+        continue;
+      }
+
+      if (method.key.type === "Identifier" && !method.computed && this.hasPlugin("classConstructorCall") && method.key.name === "call" && this.match(types.name) && this.state.value === "constructor") {
+        isConstructorCall = true;
+        this.parsePropertyName(method);
+      }
+    }
+
+    var isAsyncMethod = !this.match(types.parenL) && !method.computed && method.key.type === "Identifier" && method.key.name === "async";
+    if (isAsyncMethod) {
+      if (this.hasPlugin("asyncGenerators") && this.eat(types.star)) isGenerator = true;
+      isAsync = true;
+      this.parsePropertyName(method);
+    }
+
+    method.kind = "method";
+
+    if (!method.computed) {
+      var key = method.key;
+
+      // handle get/set methods
+      // eg. class Foo { get bar() {} set bar() {} }
+
+      if (!isAsync && !isGenerator && !this.isClassMutatorStarter() && key.type === "Identifier" && !this.match(types.parenL) && (key.name === "get" || key.name === "set")) {
+        isGetSet = true;
+        method.kind = key.name;
+        key = this.parsePropertyName(method);
+      }
+
+      // disallow invalid constructors
+      var isConstructor = !isConstructorCall && !method.static && (key.name === "constructor" || // Identifier
+      key.value === "constructor" // Literal
+      );
+      if (isConstructor) {
+        if (hadConstructor) this.raise(key.start, "Duplicate constructor in the same class");
+        if (isGetSet) this.raise(key.start, "Constructor can't have get/set modifier");
+        if (isGenerator) this.raise(key.start, "Constructor can't be a generator");
+        if (isAsync) this.raise(key.start, "Constructor can't be an async function");
+        method.kind = "constructor";
+        hadConstructor = true;
+      }
+
+      // disallow static prototype method
+      var isStaticPrototype = method.static && (key.name === "prototype" || // Identifier
+      key.value === "prototype" // Literal
+      );
+      if (isStaticPrototype) {
+        this.raise(key.start, "Classes may not have static property named prototype");
+      }
+    }
+
+    // convert constructor to a constructor call
+    if (isConstructorCall) {
+      if (hadConstructorCall) this.raise(method.start, "Duplicate constructor call in the same class");
+      method.kind = "constructorCall";
+      hadConstructorCall = true;
+    }
+
+    // disallow decorators on class constructors
+    if ((method.kind === "constructor" || method.kind === "constructorCall") && method.decorators) {
+      this.raise(method.start, "You can't attach decorators to a class constructor");
+    }
+
+    this.parseClassMethod(classBody, method, isGenerator, isAsync);
+
+    if (isGetSet) {
+      this.checkGetterSetterParamCount(method);
+    }
+  }
+
+  if (decorators.length) {
+    this.raise(this.state.start, "You have trailing decorators with no method");
+  }
+
+  node.body = this.finishNode(classBody, "ClassBody");
+
+  this.state.strict = oldStrict;
+};
+
+pp$1.parseClassProperty = function (node) {
+  if (this.match(types.eq)) {
+    if (!this.hasPlugin("classProperties")) this.unexpected();
+    this.next();
+    node.value = this.parseMaybeAssign();
+  } else {
+    node.value = null;
+  }
+  this.semicolon();
+  return this.finishNode(node, "ClassProperty");
+};
+
+pp$1.parseClassMethod = function (classBody, method, isGenerator, isAsync) {
+  this.parseMethod(method, isGenerator, isAsync);
+  classBody.body.push(this.finishNode(method, "ClassMethod"));
+};
+
+pp$1.parseClassId = function (node, isStatement, optionalId) {
+  if (this.match(types.name)) {
+    node.id = this.parseIdentifier();
+  } else {
+    if (optionalId || !isStatement) {
+      node.id = null;
+    } else {
+      this.unexpected();
+    }
+  }
+};
+
+pp$1.parseClassSuper = function (node) {
+  node.superClass = this.eat(types._extends) ? this.parseExprSubscripts() : null;
+};
+
+// Parses module export declaration.
+
+pp$1.parseExport = function (node) {
+  this.next();
+  // export * from '...'
+  if (this.match(types.star)) {
+    var specifier = this.startNode();
+    this.next();
+    if (this.hasPlugin("exportExtensions") && this.eatContextual("as")) {
+      specifier.exported = this.parseIdentifier();
+      node.specifiers = [this.finishNode(specifier, "ExportNamespaceSpecifier")];
+      this.parseExportSpecifiersMaybe(node);
+      this.parseExportFrom(node, true);
+    } else {
+      this.parseExportFrom(node, true);
+      return this.finishNode(node, "ExportAllDeclaration");
+    }
+  } else if (this.hasPlugin("exportExtensions") && this.isExportDefaultSpecifier()) {
+    var _specifier = this.startNode();
+    _specifier.exported = this.parseIdentifier(true);
+    node.specifiers = [this.finishNode(_specifier, "ExportDefaultSpecifier")];
+    if (this.match(types.comma) && this.lookahead().type === types.star) {
+      this.expect(types.comma);
+      var _specifier2 = this.startNode();
+      this.expect(types.star);
+      this.expectContextual("as");
+      _specifier2.exported = this.parseIdentifier();
+      node.specifiers.push(this.finishNode(_specifier2, "ExportNamespaceSpecifier"));
+    } else {
+      this.parseExportSpecifiersMaybe(node);
+    }
+    this.parseExportFrom(node, true);
+  } else if (this.eat(types._default)) {
+    // export default ...
+    var expr = this.startNode();
+    var needsSemi = false;
+    if (this.eat(types._function)) {
+      expr = this.parseFunction(expr, true, false, false, true);
+    } else if (this.match(types._class)) {
+      expr = this.parseClass(expr, true, true);
+    } else {
+      needsSemi = true;
+      expr = this.parseMaybeAssign();
+    }
+    node.declaration = expr;
+    if (needsSemi) this.semicolon();
+    this.checkExport(node, true, true);
+    return this.finishNode(node, "ExportDefaultDeclaration");
+  } else if (this.shouldParseExportDeclaration()) {
+    node.specifiers = [];
+    node.source = null;
+    node.declaration = this.parseExportDeclaration(node);
+  } else {
+    // export { x, y as z } [from '...']
+    node.declaration = null;
+    node.specifiers = this.parseExportSpecifiers();
+    this.parseExportFrom(node);
+  }
+  this.checkExport(node, true);
+  return this.finishNode(node, "ExportNamedDeclaration");
+};
+
+pp$1.parseExportDeclaration = function () {
+  return this.parseStatement(true);
+};
+
+pp$1.isExportDefaultSpecifier = function () {
+  if (this.match(types.name)) {
+    return this.state.value !== "type" && this.state.value !== "async" && this.state.value !== "interface";
+  }
+
+  if (!this.match(types._default)) {
+    return false;
+  }
+
+  var lookahead = this.lookahead();
+  return lookahead.type === types.comma || lookahead.type === types.name && lookahead.value === "from";
+};
+
+pp$1.parseExportSpecifiersMaybe = function (node) {
+  if (this.eat(types.comma)) {
+    node.specifiers = node.specifiers.concat(this.parseExportSpecifiers());
+  }
+};
+
+pp$1.parseExportFrom = function (node, expect) {
+  if (this.eatContextual("from")) {
+    node.source = this.match(types.string) ? this.parseExprAtom() : this.unexpected();
+    this.checkExport(node);
+  } else {
+    if (expect) {
+      this.unexpected();
+    } else {
+      node.source = null;
+    }
+  }
+
+  this.semicolon();
+};
+
+pp$1.shouldParseExportDeclaration = function () {
+  return this.state.type.keyword === "var" || this.state.type.keyword === "const" || this.state.type.keyword === "let" || this.state.type.keyword === "function" || this.state.type.keyword === "class" || this.isContextual("async");
+};
+
+pp$1.checkExport = function (node, checkNames, isDefault) {
+  if (checkNames) {
+    // Check for duplicate exports
+    if (isDefault) {
+      // Default exports
+      this.checkDuplicateExports(node, "default");
+    } else if (node.specifiers && node.specifiers.length) {
+      // Named exports
+      for (var _iterator2 = node.specifiers, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
+        var _ref2;
+
+        if (_isArray2) {
+          if (_i2 >= _iterator2.length) break;
+          _ref2 = _iterator2[_i2++];
+        } else {
+          _i2 = _iterator2.next();
+          if (_i2.done) break;
+          _ref2 = _i2.value;
+        }
+
+        var specifier = _ref2;
+
+        this.checkDuplicateExports(specifier, specifier.exported.name);
+      }
+    } else if (node.declaration) {
+      // Exported declarations
+      if (node.declaration.type === "FunctionDeclaration" || node.declaration.type === "ClassDeclaration") {
+        this.checkDuplicateExports(node, node.declaration.id.name);
+      } else if (node.declaration.type === "VariableDeclaration") {
+        for (var _iterator3 = node.declaration.declarations, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
+          var _ref3;
+
+          if (_isArray3) {
+            if (_i3 >= _iterator3.length) break;
+            _ref3 = _iterator3[_i3++];
+          } else {
+            _i3 = _iterator3.next();
+            if (_i3.done) break;
+            _ref3 = _i3.value;
+          }
+
+          var declaration = _ref3;
+
+          this.checkDeclaration(declaration.id);
+        }
+      }
+    }
+  }
+
+  if (this.state.decorators.length) {
+    var isClass = node.declaration && (node.declaration.type === "ClassDeclaration" || node.declaration.type === "ClassExpression");
+    if (!node.declaration || !isClass) {
+      this.raise(node.start, "You can only use decorators on an export when exporting a class");
+    }
+    this.takeDecorators(node.declaration);
+  }
+};
+
+pp$1.checkDeclaration = function (node) {
+  if (node.type === "ObjectPattern") {
+    for (var _iterator4 = node.properties, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
+      var _ref4;
+
+      if (_isArray4) {
+        if (_i4 >= _iterator4.length) break;
+        _ref4 = _iterator4[_i4++];
+      } else {
+        _i4 = _iterator4.next();
+        if (_i4.done) break;
+        _ref4 = _i4.value;
+      }
+
+      var prop = _ref4;
+
+      this.checkDeclaration(prop);
+    }
+  } else if (node.type === "ArrayPattern") {
+    for (var _iterator5 = node.elements, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
+      var _ref5;
+
+      if (_isArray5) {
+        if (_i5 >= _iterator5.length) break;
+        _ref5 = _iterator5[_i5++];
+      } else {
+        _i5 = _iterator5.next();
+        if (_i5.done) break;
+        _ref5 = _i5.value;
+      }
+
+      var elem = _ref5;
+
+      if (elem) {
+        this.checkDeclaration(elem);
+      }
+    }
+  } else if (node.type === "ObjectProperty") {
+    this.checkDeclaration(node.value);
+  } else if (node.type === "RestElement" || node.type === "RestProperty") {
+    this.checkDeclaration(node.argument);
+  } else if (node.type === "Identifier") {
+    this.checkDuplicateExports(node, node.name);
+  }
+};
+
+pp$1.checkDuplicateExports = function (node, name) {
+  if (this.state.exportedIdentifiers.indexOf(name) > -1) {
+    this.raiseDuplicateExportError(node, name);
+  }
+  this.state.exportedIdentifiers.push(name);
+};
+
+pp$1.raiseDuplicateExportError = function (node, name) {
+  this.raise(node.start, name === "default" ? "Only one default export allowed per module." : "`" + name + "` has already been exported. Exported identifiers must be unique.");
+};
+
+// Parses a comma-separated list of module exports.
+
+pp$1.parseExportSpecifiers = function () {
+  var nodes = [];
+  var first = true;
+  var needsFrom = void 0;
+
+  // export { x, y as z } [from '...']
+  this.expect(types.braceL);
+
+  while (!this.eat(types.braceR)) {
+    if (first) {
+      first = false;
+    } else {
+      this.expect(types.comma);
+      if (this.eat(types.braceR)) break;
+    }
+
+    var isDefault = this.match(types._default);
+    if (isDefault && !needsFrom) needsFrom = true;
+
+    var node = this.startNode();
+    node.local = this.parseIdentifier(isDefault);
+    node.exported = this.eatContextual("as") ? this.parseIdentifier(true) : node.local.__clone();
+    nodes.push(this.finishNode(node, "ExportSpecifier"));
+  }
+
+  // https://github.com/ember-cli/ember-cli/pull/3739
+  if (needsFrom && !this.isContextual("from")) {
+    this.unexpected();
+  }
+
+  return nodes;
+};
+
+// Parses import declaration.
+
+pp$1.parseImport = function (node) {
+  this.eat(types._import);
+
+  // import '...'
+  if (this.match(types.string)) {
+    node.specifiers = [];
+    node.source = this.parseExprAtom();
+  } else {
+    node.specifiers = [];
+    this.parseImportSpecifiers(node);
+    this.expectContextual("from");
+    node.source = this.match(types.string) ? this.parseExprAtom() : this.unexpected();
+  }
+  this.semicolon();
+  return this.finishNode(node, "ImportDeclaration");
+};
+
+// Parses a comma-separated list of module imports.
+
+pp$1.parseImportSpecifiers = function (node) {
+  var first = true;
+  if (this.match(types.name)) {
+    // import defaultObj, { x, y as z } from '...'
+    var startPos = this.state.start;
+    var startLoc = this.state.startLoc;
+    node.specifiers.push(this.parseImportSpecifierDefault(this.parseIdentifier(), startPos, startLoc));
+    if (!this.eat(types.comma)) return;
+  }
+
+  if (this.match(types.star)) {
+    var specifier = this.startNode();
+    this.next();
+    this.expectContextual("as");
+    specifier.local = this.parseIdentifier();
+    this.checkLVal(specifier.local, true, undefined, "import namespace specifier");
+    node.specifiers.push(this.finishNode(specifier, "ImportNamespaceSpecifier"));
+    return;
+  }
+
+  this.expect(types.braceL);
+  while (!this.eat(types.braceR)) {
+    if (first) {
+      first = false;
+    } else {
+      // Detect an attempt to deep destructure
+      if (this.eat(types.colon)) {
+        this.unexpected(null, "ES2015 named imports do not destructure. Use another statement for destructuring after the import.");
+      }
+
+      this.expect(types.comma);
+      if (this.eat(types.braceR)) break;
+    }
+
+    this.parseImportSpecifier(node);
+  }
+};
+
+pp$1.parseImportSpecifier = function (node) {
+  var specifier = this.startNode();
+  specifier.imported = this.parseIdentifier(true);
+  if (this.eatContextual("as")) {
+    specifier.local = this.parseIdentifier();
+  } else {
+    this.checkReservedWord(specifier.imported.name, specifier.start, true, true);
+    specifier.local = specifier.imported.__clone();
+  }
+  this.checkLVal(specifier.local, true, undefined, "import specifier");
+  node.specifiers.push(this.finishNode(specifier, "ImportSpecifier"));
+};
+
+pp$1.parseImportSpecifierDefault = function (id, startPos, startLoc) {
+  var node = this.startNodeAt(startPos, startLoc);
+  node.local = id;
+  this.checkLVal(node.local, true, undefined, "default import specifier");
+  return this.finishNode(node, "ImportDefaultSpecifier");
+};
+
+var pp$2 = Parser.prototype;
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+pp$2.toAssignable = function (node, isBinding, contextDescription) {
+  if (node) {
+    switch (node.type) {
+      case "Identifier":
+      case "ObjectPattern":
+      case "ArrayPattern":
+      case "AssignmentPattern":
+        break;
+
+      case "ObjectExpression":
+        node.type = "ObjectPattern";
+        for (var _iterator = node.properties, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
+          var _ref;
+
+          if (_isArray) {
+            if (_i >= _iterator.length) break;
+            _ref = _iterator[_i++];
+          } else {
+            _i = _iterator.next();
+            if (_i.done) break;
+            _ref = _i.value;
+          }
+
+          var prop = _ref;
+
+          if (prop.type === "ObjectMethod") {
+            if (prop.kind === "get" || prop.kind === "set") {
+              this.raise(prop.key.start, "Object pattern can't contain getter or setter");
+            } else {
+              this.raise(prop.key.start, "Object pattern can't contain methods");
+            }
+          } else {
+            this.toAssignable(prop, isBinding, "object destructuring pattern");
+          }
+        }
+        break;
+
+      case "ObjectProperty":
+        this.toAssignable(node.value, isBinding, contextDescription);
+        break;
+
+      case "SpreadProperty":
+        node.type = "RestProperty";
+        break;
+
+      case "ArrayExpression":
+        node.type = "ArrayPattern";
+        this.toAssignableList(node.elements, isBinding, contextDescription);
+        break;
+
+      case "AssignmentExpression":
+        if (node.operator === "=") {
+          node.type = "AssignmentPattern";
+          delete node.operator;
+        } else {
+          this.raise(node.left.end, "Only '=' operator can be used for specifying default value.");
+        }
+        break;
+
+      case "MemberExpression":
+        if (!isBinding) break;
+
+      default:
+        {
+          var message = "Invalid left-hand side" + (contextDescription ? " in " + contextDescription : /* istanbul ignore next */"expression");
+          this.raise(node.start, message);
+        }
+    }
+  }
+  return node;
+};
+
+// Convert list of expression atoms to binding list.
+
+pp$2.toAssignableList = function (exprList, isBinding, contextDescription) {
+  var end = exprList.length;
+  if (end) {
+    var last = exprList[end - 1];
+    if (last && last.type === "RestElement") {
+      --end;
+    } else if (last && last.type === "SpreadElement") {
+      last.type = "RestElement";
+      var arg = last.argument;
+      this.toAssignable(arg, isBinding, contextDescription);
+      if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern") {
+        this.unexpected(arg.start);
+      }
+      --end;
+    }
+  }
+  for (var i = 0; i < end; i++) {
+    var elt = exprList[i];
+    if (elt) this.toAssignable(elt, isBinding, contextDescription);
+  }
+  return exprList;
+};
+
+// Convert list of expression atoms to a list of
+
+pp$2.toReferencedList = function (exprList) {
+  return exprList;
+};
+
+// Parses spread element.
+
+pp$2.parseSpread = function (refShorthandDefaultPos) {
+  var node = this.startNode();
+  this.next();
+  node.argument = this.parseMaybeAssign(false, refShorthandDefaultPos);
+  return this.finishNode(node, "SpreadElement");
+};
+
+pp$2.parseRest = function () {
+  var node = this.startNode();
+  this.next();
+  node.argument = this.parseBindingIdentifier();
+  return this.finishNode(node, "RestElement");
+};
+
+pp$2.shouldAllowYieldIdentifier = function () {
+  return this.match(types._yield) && !this.state.strict && !this.state.inGenerator;
+};
+
+pp$2.parseBindingIdentifier = function () {
+  return this.parseIdentifier(this.shouldAllowYieldIdentifier());
+};
+
+// Parses lvalue (assignable) atom.
+
+pp$2.parseBindingAtom = function () {
+  switch (this.state.type) {
+    case types._yield:
+      if (this.state.strict || this.state.inGenerator) this.unexpected();
+    // fall-through
+    case types.name:
+      return this.parseIdentifier(true);
+
+    case types.bracketL:
+      var node = this.startNode();
+      this.next();
+      node.elements = this.parseBindingList(types.bracketR, true);
+      return this.finishNode(node, "ArrayPattern");
+
+    case types.braceL:
+      return this.parseObj(true);
+
+    default:
+      this.unexpected();
+  }
+};
+
+pp$2.parseBindingList = function (close, allowEmpty) {
+  var elts = [];
+  var first = true;
+  while (!this.eat(close)) {
+    if (first) {
+      first = false;
+    } else {
+      this.expect(types.comma);
+    }
+    if (allowEmpty && this.match(types.comma)) {
+      elts.push(null);
+    } else if (this.eat(close)) {
+      break;
+    } else if (this.match(types.ellipsis)) {
+      elts.push(this.parseAssignableListItemTypes(this.parseRest()));
+      this.expect(close);
+      break;
+    } else {
+      var decorators = [];
+      while (this.match(types.at)) {
+        decorators.push(this.parseDecorator());
+      }
+      var left = this.parseMaybeDefault();
+      if (decorators.length) {
+        left.decorators = decorators;
+      }
+      this.parseAssignableListItemTypes(left);
+      elts.push(this.parseMaybeDefault(left.start, left.loc.start, left));
+    }
+  }
+  return elts;
+};
+
+pp$2.parseAssignableListItemTypes = function (param) {
+  return param;
+};
+
+// Parses assignment pattern around given atom if possible.
+
+pp$2.parseMaybeDefault = function (startPos, startLoc, left) {
+  startLoc = startLoc || this.state.startLoc;
+  startPos = startPos || this.state.start;
+  left = left || this.parseBindingAtom();
+  if (!this.eat(types.eq)) return left;
+
+  var node = this.startNodeAt(startPos, startLoc);
+  node.left = left;
+  node.right = this.parseMaybeAssign();
+  return this.finishNode(node, "AssignmentPattern");
+};
+
+// Verify that a node is an lval — something that can be assigned
+// to.
+
+pp$2.checkLVal = function (expr, isBinding, checkClashes, contextDescription) {
+  switch (expr.type) {
+    case "Identifier":
+      this.checkReservedWord(expr.name, expr.start, false, true);
+
+      if (checkClashes) {
+        // we need to prefix this with an underscore for the cases where we have a key of
+        // `__proto__`. there's a bug in old V8 where the following wouldn't work:
+        //
+        //   > var obj = Object.create(null);
+        //   undefined
+        //   > obj.__proto__
+        //   null
+        //   > obj.__proto__ = true;
+        //   true
+        //   > obj.__proto__
+        //   null
+        var key = "_" + expr.name;
+
+        if (checkClashes[key]) {
+          this.raise(expr.start, "Argument name clash in strict mode");
+        } else {
+          checkClashes[key] = true;
+        }
+      }
+      break;
+
+    case "MemberExpression":
+      if (isBinding) this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression");
+      break;
+
+    case "ObjectPattern":
+      for (var _iterator2 = expr.properties, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
+        var _ref2;
+
+        if (_isArray2) {
+          if (_i2 >= _iterator2.length) break;
+          _ref2 = _iterator2[_i2++];
+        } else {
+          _i2 = _iterator2.next();
+          if (_i2.done) break;
+          _ref2 = _i2.value;
+        }
+
+        var prop = _ref2;
+
+        if (prop.type === "ObjectProperty") prop = prop.value;
+        this.checkLVal(prop, isBinding, checkClashes, "object destructuring pattern");
+      }
+      break;
+
+    case "ArrayPattern":
+      for (var _iterator3 = expr.elements, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
+        var _ref3;
+
+        if (_isArray3) {
+          if (_i3 >= _iterator3.length) break;
+          _ref3 = _iterator3[_i3++];
+        } else {
+          _i3 = _iterator3.next();
+          if (_i3.done) break;
+          _ref3 = _i3.value;
+        }
+
+        var elem = _ref3;
+
+        if (elem) this.checkLVal(elem, isBinding, checkClashes, "array destructuring pattern");
+      }
+      break;
+
+    case "AssignmentPattern":
+      this.checkLVal(expr.left, isBinding, checkClashes, "assignment pattern");
+      break;
+
+    case "RestProperty":
+      this.checkLVal(expr.argument, isBinding, checkClashes, "rest property");
+      break;
+
+    case "RestElement":
+      this.checkLVal(expr.argument, isBinding, checkClashes, "rest element");
+      break;
+
+    default:
+      {
+        var message = (isBinding ? /* istanbul ignore next */"Binding invalid" : "Invalid") + " left-hand side" + (contextDescription ? " in " + contextDescription : /* istanbul ignore next */"expression");
+        this.raise(expr.start, message);
+      }
+  }
+};
+
+/* eslint max-len: 0 */
+
+// A recursive descent parser operates by defining functions for all
+// syntactic elements, and recursively calling those, each function
+// advancing the input stream and returning an AST node. Precedence
+// of constructs (for example, the fact that `!x[1]` means `!(x[1])`
+// instead of `(!x)[1]` is handled by the fact that the parser
+// function that parses unary prefix operators is called first, and
+// in turn calls the function that parses `[]` subscripts — that
+// way, it'll receive the node for `x[1]` already parsed, and wraps
+// *that* in the unary operator node.
+//
+// Acorn uses an [operator precedence parser][opp] to handle binary
+// operator precedence, because it is much more compact than using
+// the technique outlined above, which uses different, nesting
+// functions to specify precedence, for all of the ten binary
+// precedence levels that JavaScript defines.
+//
+// [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser
+
+var pp$3 = Parser.prototype;
+
+// Check if property name clashes with already added.
+// Object/class getters and setters are not allowed to clash —
+// either with each other or with an init property — and in
+// strict mode, init properties are also not allowed to be repeated.
+
+pp$3.checkPropClash = function (prop, propHash) {
+  if (prop.computed || prop.kind) return;
+
+  var key = prop.key;
+  // It is either an Identifier or a String/NumericLiteral
+  var name = key.type === "Identifier" ? key.name : String(key.value);
+
+  if (name === "__proto__") {
+    if (propHash.proto) this.raise(key.start, "Redefinition of __proto__ property");
+    propHash.proto = true;
+  }
+};
+
+// Convenience method to parse an Expression only
+pp$3.getExpression = function () {
+  this.nextToken();
+  var expr = this.parseExpression();
+  if (!this.match(types.eof)) {
+    this.unexpected();
+  }
+  return expr;
+};
+
+// ### Expression parsing
+
+// These nest, from the most general expression type at the top to
+// 'atomic', nondivisible expression types at the bottom. Most of
+// the functions will simply let the function (s) below them parse,
+// and, *if* the syntactic construct they handle is present, wrap
+// the AST node that the inner parser gave them in another node.
+
+// Parse a full expression. The optional arguments are used to
+// forbid the `in` operator (in for loops initalization expressions)
+// and provide reference for storing '=' operator inside shorthand
+// property assignment in contexts where both object expression
+// and object pattern might appear (so it's possible to raise
+// delayed syntax error at correct position).
+
+pp$3.parseExpression = function (noIn, refShorthandDefaultPos) {
+  var startPos = this.state.start;
+  var startLoc = this.state.startLoc;
+  var expr = this.parseMaybeAssign(noIn, refShorthandDefaultPos);
+  if (this.match(types.comma)) {
+    var node = this.startNodeAt(startPos, startLoc);
+    node.expressions = [expr];
+    while (this.eat(types.comma)) {
+      node.expressions.push(this.parseMaybeAssign(noIn, refShorthandDefaultPos));
+    }
+    this.toReferencedList(node.expressions);
+    return this.finishNode(node, "SequenceExpression");
+  }
+  return expr;
+};
+
+// Parse an assignment expression. This includes applications of
+// operators like `+=`.
+
+pp$3.parseMaybeAssign = function (noIn, refShorthandDefaultPos, afterLeftParse, refNeedsArrowPos) {
+  var startPos = this.state.start;
+  var startLoc = this.state.startLoc;
+
+  if (this.match(types._yield) && this.state.inGenerator) {
+    var _left = this.parseYield();
+    if (afterLeftParse) _left = afterLeftParse.call(this, _left, startPos, startLoc);
+    return _left;
+  }
+
+  var failOnShorthandAssign = void 0;
+  if (refShorthandDefaultPos) {
+    failOnShorthandAssign = false;
+  } else {
+    refShorthandDefaultPos = { start: 0 };
+    failOnShorthandAssign = true;
+  }
+
+  if (this.match(types.parenL) || this.match(types.name)) {
+    this.state.potentialArrowAt = this.state.start;
+  }
+
+  var left = this.parseMaybeConditional(noIn, refShorthandDefaultPos, refNeedsArrowPos);
+  if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc);
+  if (this.state.type.isAssign) {
+    var node = this.startNodeAt(startPos, startLoc);
+    node.operator = this.state.value;
+    node.left = this.match(types.eq) ? this.toAssignable(left, undefined, "assignment expression") : left;
+    refShorthandDefaultPos.start = 0; // reset because shorthand default was used correctly
+
+    this.checkLVal(left, undefined, undefined, "assignment expression");
+
+    if (left.extra && left.extra.parenthesized) {
+      var errorMsg = void 0;
+      if (left.type === "ObjectPattern") {
+        errorMsg = "`({a}) = 0` use `({a} = 0)`";
+      } else if (left.type === "ArrayPattern") {
+        errorMsg = "`([a]) = 0` use `([a] = 0)`";
+      }
+      if (errorMsg) {
+        this.raise(left.start, "You're trying to assign to a parenthesized expression, eg. instead of " + errorMsg);
+      }
+    }
+
+    this.next();
+    node.right = this.parseMaybeAssign(noIn);
+    return this.finishNode(node, "AssignmentExpression");
+  } else if (failOnShorthandAssign && refShorthandDefaultPos.start) {
+    this.unexpected(refShorthandDefaultPos.start);
+  }
+
+  return left;
+};
+
+// Parse a ternary conditional (`?:`) operator.
+
+pp$3.parseMaybeConditional = function (noIn, refShorthandDefaultPos, refNeedsArrowPos) {
+  var startPos = this.state.start;
+  var startLoc = this.state.startLoc;
+  var expr = this.parseExprOps(noIn, refShorthandDefaultPos);
+  if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
+
+  return this.parseConditional(expr, noIn, startPos, startLoc, refNeedsArrowPos);
+};
+
+pp$3.parseConditional = function (expr, noIn, startPos, startLoc) {
+  if (this.eat(types.question)) {
+    var node = this.startNodeAt(startPos, startLoc);
+    node.test = expr;
+    node.consequent = this.parseMaybeAssign();
+    this.expect(types.colon);
+    node.alternate = this.parseMaybeAssign(noIn);
+    return this.finishNode(node, "ConditionalExpression");
+  }
+  return expr;
+};
+
+// Start the precedence parser.
+
+pp$3.parseExprOps = function (noIn, refShorthandDefaultPos) {
+  var startPos = this.state.start;
+  var startLoc = this.state.startLoc;
+  var expr = this.parseMaybeUnary(refShorthandDefaultPos);
+  if (refShorthandDefaultPos && refShorthandDefaultPos.start) {
+    return expr;
+  } else {
+    return this.parseExprOp(expr, startPos, startLoc, -1, noIn);
+  }
+};
+
+// Parse binary operators with the operator precedence parsing
+// algorithm. `left` is the left-hand side of the operator.
+// `minPrec` provides context that allows the function to stop and
+// defer further parser to one of its callers when it encounters an
+// operator that has a lower precedence than the set it is parsing.
+
+pp$3.parseExprOp = function (left, leftStartPos, leftStartLoc, minPrec, noIn) {
+  var prec = this.state.type.binop;
+  if (prec != null && (!noIn || !this.match(types._in))) {
+    if (prec > minPrec) {
+      var node = this.startNodeAt(leftStartPos, leftStartLoc);
+      node.left = left;
+      node.operator = this.state.value;
+
+      if (node.operator === "**" && left.type === "UnaryExpression" && left.extra && !left.extra.parenthesizedArgument && !left.extra.parenthesized) {
+        this.raise(left.argument.start, "Illegal expression. Wrap left hand side or entire exponentiation in parentheses.");
+      }
+
+      var op = this.state.type;
+      this.next();
+
+      var startPos = this.state.start;
+      var startLoc = this.state.startLoc;
+      node.right = this.parseExprOp(this.parseMaybeUnary(), startPos, startLoc, op.rightAssociative ? prec - 1 : prec, noIn);
+
+      this.finishNode(node, op === types.logicalOR || op === types.logicalAND ? "LogicalExpression" : "BinaryExpression");
+      return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn);
+    }
+  }
+  return left;
+};
+
+// Parse unary operators, both prefix and postfix.
+
+pp$3.parseMaybeUnary = function (refShorthandDefaultPos) {
+  if (this.state.type.prefix) {
+    var node = this.startNode();
+    var update = this.match(types.incDec);
+    node.operator = this.state.value;
+    node.prefix = true;
+    this.next();
+
+    var argType = this.state.type;
+    node.argument = this.parseMaybeUnary();
+
+    this.addExtra(node, "parenthesizedArgument", argType === types.parenL && (!node.argument.extra || !node.argument.extra.parenthesized));
+
+    if (refShorthandDefaultPos && refShorthandDefaultPos.start) {
+      this.unexpected(refShorthandDefaultPos.start);
+    }
+
+    if (update) {
+      this.checkLVal(node.argument, undefined, undefined, "prefix operation");
+    } else if (this.state.strict && node.operator === "delete" && node.argument.type === "Identifier") {
+      this.raise(node.start, "Deleting local variable in strict mode");
+    }
+
+    return this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
+  }
+
+  var startPos = this.state.start;
+  var startLoc = this.state.startLoc;
+  var expr = this.parseExprSubscripts(refShorthandDefaultPos);
+  if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
+  while (this.state.type.postfix && !this.canInsertSemicolon()) {
+    var _node = this.startNodeAt(startPos, startLoc);
+    _node.operator = this.state.value;
+    _node.prefix = false;
+    _node.argument = expr;
+    this.checkLVal(expr, undefined, undefined, "postfix operation");
+    this.next();
+    expr = this.finishNode(_node, "UpdateExpression");
+  }
+  return expr;
+};
+
+// Parse call, dot, and `[]`-subscript expressions.
+
+pp$3.parseExprSubscripts = function (refShorthandDefaultPos) {
+  var startPos = this.state.start;
+  var startLoc = this.state.startLoc;
+  var potentialArrowAt = this.state.potentialArrowAt;
+  var expr = this.parseExprAtom(refShorthandDefaultPos);
+
+  if (expr.type === "ArrowFunctionExpression" && expr.start === potentialArrowAt) {
+    return expr;
+  }
+
+  if (refShorthandDefaultPos && refShorthandDefaultPos.start) {
+    return expr;
+  }
+
+  return this.parseSubscripts(expr, startPos, startLoc);
+};
+
+pp$3.parseSubscripts = function (base, startPos, startLoc, noCalls) {
+  for (;;) {
+    if (!noCalls && this.eat(types.doubleColon)) {
+      var node = this.startNodeAt(startPos, startLoc);
+      node.object = base;
+      node.callee = this.parseNoCallExpr();
+      return this.parseSubscripts(this.finishNode(node, "BindExpression"), startPos, startLoc, noCalls);
+    } else if (this.eat(types.dot)) {
+      var _node2 = this.startNodeAt(startPos, startLoc);
+      _node2.object = base;
+      _node2.property = this.parseIdentifier(true);
+      _node2.computed = false;
+      base = this.finishNode(_node2, "MemberExpression");
+    } else if (this.eat(types.bracketL)) {
+      var _node3 = this.startNodeAt(startPos, startLoc);
+      _node3.object = base;
+      _node3.property = this.parseExpression();
+      _node3.computed = true;
+      this.expect(types.bracketR);
+      base = this.finishNode(_node3, "MemberExpression");
+    } else if (!noCalls && this.match(types.parenL)) {
+      var possibleAsync = this.state.potentialArrowAt === base.start && base.type === "Identifier" && base.name === "async" && !this.canInsertSemicolon();
+      this.next();
+
+      var _node4 = this.startNodeAt(startPos, startLoc);
+      _node4.callee = base;
+      _node4.arguments = this.parseCallExpressionArguments(types.parenR, possibleAsync);
+      if (_node4.callee.type === "Import" && _node4.arguments.length !== 1) {
+        this.raise(_node4.start, "import() requires exactly one argument");
+      }
+      base = this.finishNode(_node4, "CallExpression");
+
+      if (possibleAsync && this.shouldParseAsyncArrow()) {
+        return this.parseAsyncArrowFromCallExpression(this.startNodeAt(startPos, startLoc), _node4);
+      } else {
+        this.toReferencedList(_node4.arguments);
+      }
+    } else if (this.match(types.backQuote)) {
+      var _node5 = this.startNodeAt(startPos, startLoc);
+      _node5.tag = base;
+      _node5.quasi = this.parseTemplate();
+      base = this.finishNode(_node5, "TaggedTemplateExpression");
+    } else {
+      return base;
+    }
+  }
+};
+
+pp$3.parseCallExpressionArguments = function (close, possibleAsyncArrow) {
+  var elts = [];
+  var innerParenStart = void 0;
+  var first = true;
+
+  while (!this.eat(close)) {
+    if (first) {
+      first = false;
+    } else {
+      this.expect(types.comma);
+      if (this.eat(close)) break;
+    }
+
+    // we need to make sure that if this is an async arrow functions, that we don't allow inner parens inside the params
+    if (this.match(types.parenL) && !innerParenStart) {
+      innerParenStart = this.state.start;
+    }
+
+    elts.push(this.parseExprListItem(false, possibleAsyncArrow ? { start: 0 } : undefined, possibleAsyncArrow ? { start: 0 } : undefined));
+  }
+
+  // we found an async arrow function so let's not allow any inner parens
+  if (possibleAsyncArrow && innerParenStart && this.shouldParseAsyncArrow()) {
+    this.unexpected();
+  }
+
+  return elts;
+};
+
+pp$3.shouldParseAsyncArrow = function () {
+  return this.match(types.arrow);
+};
+
+pp$3.parseAsyncArrowFromCallExpression = function (node, call) {
+  this.expect(types.arrow);
+  return this.parseArrowExpression(node, call.arguments, true);
+};
+
+// Parse a no-call expression (like argument of `new` or `::` operators).
+
+pp$3.parseNoCallExpr = function () {
+  var startPos = this.state.start;
+  var startLoc = this.state.startLoc;
+  return this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
+};
+
+// Parse an atomic expression — either a single token that is an
+// expression, an expression started by a keyword like `function` or
+// `new`, or an expression wrapped in punctuation like `()`, `[]`,
+// or `{}`.
+
+pp$3.parseExprAtom = function (refShorthandDefaultPos) {
+  var canBeArrow = this.state.potentialArrowAt === this.state.start;
+  var node = void 0;
+
+  switch (this.state.type) {
+    case types._super:
+      if (!this.state.inMethod && !this.options.allowSuperOutsideMethod) {
+        this.raise(this.state.start, "'super' outside of function or class");
+      }
+
+      node = this.startNode();
+      this.next();
+      if (!this.match(types.parenL) && !this.match(types.bracketL) && !this.match(types.dot)) {
+        this.unexpected();
+      }
+      if (this.match(types.parenL) && this.state.inMethod !== "constructor" && !this.options.allowSuperOutsideMethod) {
+        this.raise(node.start, "super() outside of class constructor");
+      }
+      return this.finishNode(node, "Super");
+
+    case types._import:
+      if (!this.hasPlugin("dynamicImport")) this.unexpected();
+
+      node = this.startNode();
+      this.next();
+      if (!this.match(types.parenL)) {
+        this.unexpected(null, types.parenL);
+      }
+      return this.finishNode(node, "Import");
+
+    case types._this:
+      node = this.startNode();
+      this.next();
+      return this.finishNode(node, "ThisExpression");
+
+    case types._yield:
+      if (this.state.inGenerator) this.unexpected();
+
+    case types.name:
+      node = this.startNode();
+      var allowAwait = this.state.value === "await" && this.state.inAsync;
+      var allowYield = this.shouldAllowYieldIdentifier();
+      var id = this.parseIdentifier(allowAwait || allowYield);
+
+      if (id.name === "await") {
+        if (this.state.inAsync || this.inModule) {
+          return this.parseAwait(node);
+        }
+      } else if (id.name === "async" && this.match(types._function) && !this.canInsertSemicolon()) {
+        this.next();
+        return this.parseFunction(node, false, false, true);
+      } else if (canBeArrow && id.name === "async" && this.match(types.name)) {
+        var params = [this.parseIdentifier()];
+        this.expect(types.arrow);
+        // let foo = bar => {};
+        return this.parseArrowExpression(node, params, true);
+      }
+
+      if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
+        return this.parseArrowExpression(node, [id]);
+      }
+
+      return id;
+
+    case types._do:
+      if (this.hasPlugin("doExpressions")) {
+        var _node6 = this.startNode();
+        this.next();
+        var oldInFunction = this.state.inFunction;
+        var oldLabels = this.state.labels;
+        this.state.labels = [];
+        this.state.inFunction = false;
+        _node6.body = this.parseBlock(false, true);
+        this.state.inFunction = oldInFunction;
+        this.state.labels = oldLabels;
+        return this.finishNode(_node6, "DoExpression");
+      }
+
+    case types.regexp:
+      var value = this.state.value;
+      node = this.parseLiteral(value.value, "RegExpLiteral");
+      node.pattern = value.pattern;
+      node.flags = value.flags;
+      return node;
+
+    case types.num:
+      return this.parseLiteral(this.state.value, "NumericLiteral");
+
+    case types.string:
+      return this.parseLiteral(this.state.value, "StringLiteral");
+
+    case types._null:
+      node = this.startNode();
+      this.next();
+      return this.finishNode(node, "NullLiteral");
+
+    case types._true:case types._false:
+      node = this.startNode();
+      node.value = this.match(types._true);
+      this.next();
+      return this.finishNode(node, "BooleanLiteral");
+
+    case types.parenL:
+      return this.parseParenAndDistinguishExpression(null, null, canBeArrow);
+
+    case types.bracketL:
+      node = this.startNode();
+      this.next();
+      node.elements = this.parseExprList(types.bracketR, true, refShorthandDefaultPos);
+      this.toReferencedList(node.elements);
+      return this.finishNode(node, "ArrayExpression");
+
+    case types.braceL:
+      return this.parseObj(false, refShorthandDefaultPos);
+
+    case types._function:
+      return this.parseFunctionExpression();
+
+    case types.at:
+      this.parseDecorators();
+
+    case types._class:
+      node = this.startNode();
+      this.takeDecorators(node);
+      return this.parseClass(node, false);
+
+    case types._new:
+      return this.parseNew();
+
+    case types.backQuote:
+      return this.parseTemplate();
+
+    case types.doubleColon:
+      node = this.startNode();
+      this.next();
+      node.object = null;
+      var callee = node.callee = this.parseNoCallExpr();
+      if (callee.type === "MemberExpression") {
+        return this.finishNode(node, "BindExpression");
+      } else {
+        this.raise(callee.start, "Binding should be performed on object property.");
+      }
+
+    default:
+      this.unexpected();
+  }
+};
+
+pp$3.parseFunctionExpression = function () {
+  var node = this.startNode();
+  var meta = this.parseIdentifier(true);
+  if (this.state.inGenerator && this.eat(types.dot) && this.hasPlugin("functionSent")) {
+    return this.parseMetaProperty(node, meta, "sent");
+  } else {
+    return this.parseFunction(node, false);
+  }
+};
+
+pp$3.parseMetaProperty = function (node, meta, propertyName) {
+  node.meta = meta;
+  node.property = this.parseIdentifier(true);
+
+  if (node.property.name !== propertyName) {
+    this.raise(node.property.start, "The only valid meta property for new is " + meta.name + "." + propertyName);
+  }
+
+  return this.finishNode(node, "MetaProperty");
+};
+
+pp$3.parseLiteral = function (value, type, startPos, startLoc) {
+  startPos = startPos || this.state.start;
+  startLoc = startLoc || this.state.startLoc;
+
+  var node = this.startNodeAt(startPos, startLoc);
+  this.addExtra(node, "rawValue", value);
+  this.addExtra(node, "raw", this.input.slice(startPos, this.state.end));
+  node.value = value;
+  this.next();
+  return this.finishNode(node, type);
+};
+
+pp$3.parseParenExpression = function () {
+  this.expect(types.parenL);
+  var val = this.parseExpression();
+  this.expect(types.parenR);
+  return val;
+};
+
+pp$3.parseParenAndDistinguishExpression = function (startPos, startLoc, canBeArrow) {
+  startPos = startPos || this.state.start;
+  startLoc = startLoc || this.state.startLoc;
+
+  var val = void 0;
+  this.expect(types.parenL);
+
+  var innerStartPos = this.state.start;
+  var innerStartLoc = this.state.startLoc;
+  var exprList = [];
+  var refShorthandDefaultPos = { start: 0 };
+  var refNeedsArrowPos = { start: 0 };
+  var first = true;
+  var spreadStart = void 0;
+  var optionalCommaStart = void 0;
+
+  while (!this.match(types.parenR)) {
+    if (first) {
+      first = false;
+    } else {
+      this.expect(types.comma, refNeedsArrowPos.start || null);
+      if (this.match(types.parenR)) {
+        optionalCommaStart = this.state.start;
+        break;
+      }
+    }
+
+    if (this.match(types.ellipsis)) {
+      var spreadNodeStartPos = this.state.start;
+      var spreadNodeStartLoc = this.state.startLoc;
+      spreadStart = this.state.start;
+      exprList.push(this.parseParenItem(this.parseRest(), spreadNodeStartLoc, spreadNodeStartPos));
+      break;
+    } else {
+      exprList.push(this.parseMaybeAssign(false, refShorthandDefaultPos, this.parseParenItem, refNeedsArrowPos));
+    }
+  }
+
+  var innerEndPos = this.state.start;
+  var innerEndLoc = this.state.startLoc;
+  this.expect(types.parenR);
+
+  var arrowNode = this.startNodeAt(startPos, startLoc);
+  if (canBeArrow && this.shouldParseArrow() && (arrowNode = this.parseArrow(arrowNode))) {
+    for (var _iterator = exprList, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
+      var _ref;
+
+      if (_isArray) {
+        if (_i >= _iterator.length) break;
+        _ref = _iterator[_i++];
+      } else {
+        _i = _iterator.next();
+        if (_i.done) break;
+        _ref = _i.value;
+      }
+
+      var param = _ref;
+
+      if (param.extra && param.extra.parenthesized) this.unexpected(param.extra.parenStart);
+    }
+
+    return this.parseArrowExpression(arrowNode, exprList);
+  }
+
+  if (!exprList.length) {
+    this.unexpected(this.state.lastTokStart);
+  }
+  if (optionalCommaStart) this.unexpected(optionalCommaStart);
+  if (spreadStart) this.unexpected(spreadStart);
+  if (refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start);
+  if (refNeedsArrowPos.start) this.unexpected(refNeedsArrowPos.start);
+
+  if (exprList.length > 1) {
+    val = this.startNodeAt(innerStartPos, innerStartLoc);
+    val.expressions = exprList;
+    this.toReferencedList(val.expressions);
+    this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
+  } else {
+    val = exprList[0];
+  }
+
+  this.addExtra(val, "parenthesized", true);
+  this.addExtra(val, "parenStart", startPos);
+
+  return val;
+};
+
+pp$3.shouldParseArrow = function () {
+  return !this.canInsertSemicolon();
+};
+
+pp$3.parseArrow = function (node) {
+  if (this.eat(types.arrow)) {
+    return node;
+  }
+};
+
+pp$3.parseParenItem = function (node) {
+  return node;
+};
+
+// New's precedence is slightly tricky. It must allow its argument
+// to be a `[]` or dot subscript expression, but not a call — at
+// least, not without wrapping it in parentheses. Thus, it uses the
+
+pp$3.parseNew = function () {
+  var node = this.startNode();
+  var meta = this.parseIdentifier(true);
+
+  if (this.eat(types.dot)) {
+    return this.parseMetaProperty(node, meta, "target");
+  }
+
+  node.callee = this.parseNoCallExpr();
+
+  if (this.eat(types.parenL)) {
+    node.arguments = this.parseExprList(types.parenR);
+    this.toReferencedList(node.arguments);
+  } else {
+    node.arguments = [];
+  }
+
+  return this.finishNode(node, "NewExpression");
+};
+
+// Parse template expression.
+
+pp$3.parseTemplateElement = function () {
+  var elem = this.startNode();
+  elem.value = {
+    raw: this.input.slice(this.state.start, this.state.end).replace(/\r\n?/g, "\n"),
+    cooked: this.state.value
+  };
+  this.next();
+  elem.tail = this.match(types.backQuote);
+  return this.finishNode(elem, "TemplateElement");
+};
+
+pp$3.parseTemplate = function () {
+  var node = this.startNode();
+  this.next();
+  node.expressions = [];
+  var curElt = this.parseTemplateElement();
+  node.quasis = [curElt];
+  while (!curElt.tail) {
+    this.expect(types.dollarBraceL);
+    node.expressions.push(this.parseExpression());
+    this.expect(types.braceR);
+    node.quasis.push(curElt = this.parseTemplateElement());
+  }
+  this.next();
+  return this.finishNode(node, "TemplateLiteral");
+};
+
+// Parse an object literal or binding pattern.
+
+pp$3.parseObj = function (isPattern, refShorthandDefaultPos) {
+  var decorators = [];
+  var propHash = Object.create(null);
+  var first = true;
+  var node = this.startNode();
+
+  node.properties = [];
+  this.next();
+
+  var firstRestLocation = null;
+
+  while (!this.eat(types.braceR)) {
+    if (first) {
+      first = false;
+    } else {
+      this.expect(types.comma);
+      if (this.eat(types.braceR)) break;
+    }
+
+    while (this.match(types.at)) {
+      decorators.push(this.parseDecorator());
+    }
+
+    var prop = this.startNode(),
+        isGenerator = false,
+        isAsync = false,
+        startPos = void 0,
+        startLoc = void 0;
+    if (decorators.length) {
+      prop.decorators = decorators;
+      decorators = [];
+    }
+
+    if (this.hasPlugin("objectRestSpread") && this.match(types.ellipsis)) {
+      prop = this.parseSpread(isPattern ? { start: 0 } : undefined);
+      prop.type = isPattern ? "RestProperty" : "SpreadProperty";
+      if (isPattern) this.toAssignable(prop.argument, true, "object pattern");
+      node.properties.push(prop);
+      if (isPattern) {
+        var position = this.state.start;
+        if (firstRestLocation !== null) {
+          this.unexpected(firstRestLocation, "Cannot have multiple rest elements when destructuring");
+        } else if (this.eat(types.braceR)) {
+          break;
+        } else if (this.match(types.comma) && this.lookahead().type === types.braceR) {
+          // TODO: temporary rollback
+          // this.unexpected(position, "A trailing comma is not permitted after the rest element");
+          continue;
+        } else {
+          firstRestLocation = position;
+          continue;
+        }
+      } else {
+        continue;
+      }
+    }
+
+    prop.method = false;
+    prop.shorthand = false;
+
+    if (isPattern || refShorthandDefaultPos) {
+      startPos = this.state.start;
+      startLoc = this.state.startLoc;
+    }
+
+    if (!isPattern) {
+      isGenerator = this.eat(types.star);
+    }
+
+    if (!isPattern && this.isContextual("async")) {
+      if (isGenerator) this.unexpected();
+
+      var asyncId = this.parseIdentifier();
+      if (this.match(types.colon) || this.match(types.parenL) || this.match(types.braceR) || this.match(types.eq) || this.match(types.comma)) {
+        prop.key = asyncId;
+        prop.computed = false;
+      } else {
+        isAsync = true;
+        if (this.hasPlugin("asyncGenerators")) isGenerator = this.eat(types.star);
+        this.parsePropertyName(prop);
+      }
+    } else {
+      this.parsePropertyName(prop);
+    }
+
+    this.parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, isPattern, refShorthandDefaultPos);
+    this.checkPropClash(prop, propHash);
+
+    if (prop.shorthand) {
+      this.addExtra(prop, "shorthand", true);
+    }
+
+    node.properties.push(prop);
+  }
+
+  if (firstRestLocation !== null) {
+    this.unexpected(firstRestLocation, "The rest element has to be the last element when destructuring");
+  }
+
+  if (decorators.length) {
+    this.raise(this.state.start, "You have trailing decorators with no property");
+  }
+
+  return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression");
+};
+
+pp$3.isGetterOrSetterMethod = function (prop, isPattern) {
+  return !isPattern && !prop.computed && prop.key.type === "Identifier" && (prop.key.name === "get" || prop.key.name === "set") && (this.match(types.string) || // get "string"() {}
+  this.match(types.num) || // get 1() {}
+  this.match(types.bracketL) || // get ["string"]() {}
+  this.match(types.name) || // get foo() {}
+  this.state.type.keyword // get debugger() {}
+  );
+};
+
+// get methods aren't allowed to have any parameters
+// set methods must have exactly 1 parameter
+pp$3.checkGetterSetterParamCount = function (method) {
+  var paramCount = method.kind === "get" ? 0 : 1;
+  if (method.params.length !== paramCount) {
+    var start = method.start;
+    if (method.kind === "get") {
+      this.raise(start, "getter should have no params");
+    } else {
+      this.raise(start, "setter should have exactly one param");
+    }
+  }
+};
+
+pp$3.parseObjectMethod = function (prop, isGenerator, isAsync, isPattern) {
+  if (isAsync || isGenerator || this.match(types.parenL)) {
+    if (isPattern) this.unexpected();
+    prop.kind = "method";
+    prop.method = true;
+    this.parseMethod(prop, isGenerator, isAsync);
+
+    return this.finishNode(prop, "ObjectMethod");
+  }
+
+  if (this.isGetterOrSetterMethod(prop, isPattern)) {
+    if (isGenerator || isAsync) this.unexpected();
+    prop.kind = prop.key.name;
+    this.parsePropertyName(prop);
+    this.parseMethod(prop);
+    this.checkGetterSetterParamCount(prop);
+
+    return this.finishNode(prop, "ObjectMethod");
+  }
+};
+
+pp$3.parseObjectProperty = function (prop, startPos, startLoc, isPattern, refShorthandDefaultPos) {
+  if (this.eat(types.colon)) {
+    prop.value = isPattern ? this.parseMaybeDefault(this.state.start, this.state.startLoc) : this.parseMaybeAssign(false, refShorthandDefaultPos);
+
+    return this.finishNode(prop, "ObjectProperty");
+  }
+
+  if (!prop.computed && prop.key.type === "Identifier") {
+    if (isPattern) {
+      this.checkReservedWord(prop.key.name, prop.key.start, true, true);
+      prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key.__clone());
+    } else if (this.match(types.eq) && refShorthandDefaultPos) {
+      if (!refShorthandDefaultPos.start) {
+        refShorthandDefaultPos.start = this.state.start;
+      }
+      prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key.__clone());
+    } else {
+      prop.value = prop.key.__clone();
+    }
+    prop.shorthand = true;
+
+    return this.finishNode(prop, "ObjectProperty");
+  }
+};
+
+pp$3.parseObjPropValue = function (prop, startPos, startLoc, isGenerator, isAsync, isPattern, refShorthandDefaultPos) {
+  var node = this.parseObjectMethod(prop, isGenerator, isAsync, isPattern) || this.parseObjectProperty(prop, startPos, startLoc, isPattern, refShorthandDefaultPos);
+
+  if (!node) this.unexpected();
+
+  return node;
+};
+
+pp$3.parsePropertyName = function (prop) {
+  if (this.eat(types.bracketL)) {
+    prop.computed = true;
+    prop.key = this.parseMaybeAssign();
+    this.expect(types.bracketR);
+  } else {
+    prop.computed = false;
+    var oldInPropertyName = this.state.inPropertyName;
+    this.state.inPropertyName = true;
+    prop.key = this.match(types.num) || this.match(types.string) ? this.parseExprAtom() : this.parseIdentifier(true);
+    this.state.inPropertyName = oldInPropertyName;
+  }
+  return prop.key;
+};
+
+// Initialize empty function node.
+
+pp$3.initFunction = function (node, isAsync) {
+  node.id = null;
+  node.generator = false;
+  node.expression = false;
+  node.async = !!isAsync;
+};
+
+// Parse object or class method.
+
+pp$3.parseMethod = function (node, isGenerator, isAsync) {
+  var oldInMethod = this.state.inMethod;
+  this.state.inMethod = node.kind || true;
+  this.initFunction(node, isAsync);
+  this.expect(types.parenL);
+  node.params = this.parseBindingList(types.parenR);
+  node.generator = !!isGenerator;
+  this.parseFunctionBody(node);
+  this.state.inMethod = oldInMethod;
+  return node;
+};
+
+// Parse arrow function expression with given parameters.
+
+pp$3.parseArrowExpression = function (node, params, isAsync) {
+  this.initFunction(node, isAsync);
+  node.params = this.toAssignableList(params, true, "arrow function parameters");
+  this.parseFunctionBody(node, true);
+  return this.finishNode(node, "ArrowFunctionExpression");
+};
+
+pp$3.isStrictBody = function (node, isExpression) {
+  if (!isExpression && node.body.directives.length) {
+    for (var _iterator2 = node.body.directives, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
+      var _ref2;
+
+      if (_isArray2) {
+        if (_i2 >= _iterator2.length) break;
+        _ref2 = _iterator2[_i2++];
+      } else {
+        _i2 = _iterator2.next();
+        if (_i2.done) break;
+        _ref2 = _i2.value;
+      }
+
+      var directive = _ref2;
+
+      if (directive.value.value === "use strict") {
+        return true;
+      }
+    }
+  }
+
+  return false;
+};
+
+// Parse function body and check parameters.
+pp$3.parseFunctionBody = function (node, allowExpression) {
+  var isExpression = allowExpression && !this.match(types.braceL);
+
+  var oldInAsync = this.state.inAsync;
+  this.state.inAsync = node.async;
+  if (isExpression) {
+    node.body = this.parseMaybeAssign();
+    node.expression = true;
+  } else {
+    // Start a new scope with regard to labels and the `inFunction`
+    // flag (restore them to their old value afterwards).
+    var oldInFunc = this.state.inFunction;
+    var oldInGen = this.state.inGenerator;
+    var oldLabels = this.state.labels;
+    this.state.inFunction = true;this.state.inGenerator = node.generator;this.state.labels = [];
+    node.body = this.parseBlock(true);
+    node.expression = false;
+    this.state.inFunction = oldInFunc;this.state.inGenerator = oldInGen;this.state.labels = oldLabels;
+  }
+  this.state.inAsync = oldInAsync;
+
+  // If this is a strict mode function, verify that argument names
+  // are not repeated, and it does not try to bind the words `eval`
+  // or `arguments`.
+  var isStrict = this.isStrictBody(node, isExpression);
+  // Also check when allowExpression === true for arrow functions
+  var checkLVal = this.state.strict || allowExpression || isStrict;
+
+  if (isStrict && node.id && node.id.type === "Identifier" && node.id.name === "yield") {
+    this.raise(node.id.start, "Binding yield in strict mode");
+  }
+
+  if (checkLVal) {
+    var nameHash = Object.create(null);
+    var oldStrict = this.state.strict;
+    if (isStrict) this.state.strict = true;
+    if (node.id) {
+      this.checkLVal(node.id, true, undefined, "function name");
+    }
+    for (var _iterator3 = node.params, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
+      var _ref3;
+
+      if (_isArray3) {
+        if (_i3 >= _iterator3.length) break;
+        _ref3 = _iterator3[_i3++];
+      } else {
+        _i3 = _iterator3.next();
+        if (_i3.done) break;
+        _ref3 = _i3.value;
+      }
+
+      var param = _ref3;
+
+      if (isStrict && param.type !== "Identifier") {
+        this.raise(param.start, "Non-simple parameter in strict mode");
+      }
+      this.checkLVal(param, true, nameHash, "function parameter list");
+    }
+    this.state.strict = oldStrict;
+  }
+};
+
+// Parses a comma-separated list of expressions, and returns them as
+// an array. `close` is the token type that ends the list, and
+// `allowEmpty` can be turned on to allow subsequent commas with
+// nothing in between them to be parsed as `null` (which is needed
+// for array literals).
+
+pp$3.parseExprList = function (close, allowEmpty, refShorthandDefaultPos) {
+  var elts = [];
+  var first = true;
+
+  while (!this.eat(close)) {
+    if (first) {
+      first = false;
+    } else {
+      this.expect(types.comma);
+      if (this.eat(close)) break;
+    }
+
+    elts.push(this.parseExprListItem(allowEmpty, refShorthandDefaultPos));
+  }
+  return elts;
+};
+
+pp$3.parseExprListItem = function (allowEmpty, refShorthandDefaultPos, refNeedsArrowPos) {
+  var elt = void 0;
+  if (allowEmpty && this.match(types.comma)) {
+    elt = null;
+  } else if (this.match(types.ellipsis)) {
+    elt = this.parseSpread(refShorthandDefaultPos);
+  } else {
+    elt = this.parseMaybeAssign(false, refShorthandDefaultPos, this.parseParenItem, refNeedsArrowPos);
+  }
+  return elt;
+};
+
+// Parse the next token as an identifier. If `liberal` is true (used
+// when parsing properties), it will also convert keywords into
+// identifiers.
+
+pp$3.parseIdentifier = function (liberal) {
+  var node = this.startNode();
+  if (!liberal) {
+    this.checkReservedWord(this.state.value, this.state.start, !!this.state.type.keyword, false);
+  }
+
+  if (this.match(types.name)) {
+    node.name = this.state.value;
+  } else if (this.state.type.keyword) {
+    node.name = this.state.type.keyword;
+  } else {
+    this.unexpected();
+  }
+
+  if (!liberal && node.name === "await" && this.state.inAsync) {
+    this.raise(node.start, "invalid use of await inside of an async function");
+  }
+
+  node.loc.identifierName = node.name;
+
+  this.next();
+  return this.finishNode(node, "Identifier");
+};
+
+pp$3.checkReservedWord = function (word, startLoc, checkKeywords, isBinding) {
+  if (this.isReservedWord(word) || checkKeywords && this.isKeyword(word)) {
+    this.raise(startLoc, word + " is a reserved word");
+  }
+
+  if (this.state.strict && (reservedWords.strict(word) || isBinding && reservedWords.strictBind(word))) {
+    this.raise(startLoc, word + " is a reserved word in strict mode");
+  }
+};
+
+// Parses await expression inside async function.
+
+pp$3.parseAwait = function (node) {
+  // istanbul ignore next: this condition is checked at the call site so won't be hit here
+  if (!this.state.inAsync) {
+    this.unexpected();
+  }
+  if (this.match(types.star)) {
+    this.raise(node.start, "await* has been removed from the async functions proposal. Use Promise.all() instead.");
+  }
+  node.argument = this.parseMaybeUnary();
+  return this.finishNode(node, "AwaitExpression");
+};
+
+// Parses yield expression inside generator.
+
+pp$3.parseYield = function () {
+  var node = this.startNode();
+  this.next();
+  if (this.match(types.semi) || this.canInsertSemicolon() || !this.match(types.star) && !this.state.type.startsExpr) {
+    node.delegate = false;
+    node.argument = null;
+  } else {
+    node.delegate = this.eat(types.star);
+    node.argument = this.parseMaybeAssign();
+  }
+  return this.finishNode(node, "YieldExpression");
+};
+
+// Start an AST node, attaching a start offset.
+
+var pp$4 = Parser.prototype;
+var commentKeys = ["leadingComments", "trailingComments", "innerComments"];
+
+var Node = function () {
+  function Node(pos, loc, filename) {
+    classCallCheck(this, Node);
+
+    this.type = "";
+    this.start = pos;
+    this.end = 0;
+    this.loc = new SourceLocation(loc);
+    if (filename) this.loc.filename = filename;
+  }
+
+  Node.prototype.__clone = function __clone() {
+    var node2 = new Node();
+    for (var key in this) {
+      // Do not clone comments that are already attached to the node
+      if (commentKeys.indexOf(key) < 0) {
+        node2[key] = this[key];
+      }
+    }
+
+    return node2;
+  };
+
+  return Node;
+}();
+
+pp$4.startNode = function () {
+  return new Node(this.state.start, this.state.startLoc, this.filename);
+};
+
+pp$4.startNodeAt = function (pos, loc) {
+  return new Node(pos, loc, this.filename);
+};
+
+function finishNodeAt(node, type, pos, loc) {
+  node.type = type;
+  node.end = pos;
+  node.loc.end = loc;
+  this.processComment(node);
+  return node;
+}
+
+// Finish an AST node, adding `type` and `end` properties.
+
+pp$4.finishNode = function (node, type) {
+  return finishNodeAt.call(this, node, type, this.state.lastTokEnd, this.state.lastTokEndLoc);
+};
+
+// Finish node at given position
+
+pp$4.finishNodeAt = function (node, type, pos, loc) {
+  return finishNodeAt.call(this, node, type, pos, loc);
+};
+
+var pp$5 = Parser.prototype;
+
+// This function is used to raise exceptions on parse errors. It
+// takes an offset integer (into the current `input`) to indicate
+// the location of the error, attaches the position to the end
+// of the error message, and then raises a `SyntaxError` with that
+// message.
+
+pp$5.raise = function (pos, message) {
+  var loc = getLineInfo(this.input, pos);
+  message += " (" + loc.line + ":" + loc.column + ")";
+  var err = new SyntaxError(message);
+  err.pos = pos;
+  err.loc = loc;
+  throw err;
+};
+
+/* eslint max-len: 0 */
+
+/**
+ * Based on the comment attachment algorithm used in espree and estraverse.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+function last(stack) {
+  return stack[stack.length - 1];
+}
+
+var pp$6 = Parser.prototype;
+
+pp$6.addComment = function (comment) {
+  if (this.filename) comment.loc.filename = this.filename;
+  this.state.trailingComments.push(comment);
+  this.state.leadingComments.push(comment);
+};
+
+pp$6.processComment = function (node) {
+  if (node.type === "Program" && node.body.length > 0) return;
+
+  var stack = this.state.commentStack;
+
+  var lastChild = void 0,
+      trailingComments = void 0,
+      i = void 0,
+      j = void 0;
+
+  if (this.state.trailingComments.length > 0) {
+    // If the first comment in trailingComments comes after the
+    // current node, then we're good - all comments in the array will
+    // come after the node and so it's safe to add them as official
+    // trailingComments.
+    if (this.state.trailingComments[0].start >= node.end) {
+      trailingComments = this.state.trailingComments;
+      this.state.trailingComments = [];
+    } else {
+      // Otherwise, if the first comment doesn't come after the
+      // current node, that means we have a mix of leading and trailing
+      // comments in the array and that leadingComments contains the
+      // same items as trailingComments. Reset trailingComments to
+      // zero items and we'll handle this by evaluating leadingComments
+      // later.
+      this.state.trailingComments.length = 0;
+    }
+  } else {
+    var lastInStack = last(stack);
+    if (stack.length > 0 && lastInStack.trailingComments && lastInStack.trailingComments[0].start >= node.end) {
+      trailingComments = lastInStack.trailingComments;
+      lastInStack.trailingComments = null;
+    }
+  }
+
+  // Eating the stack.
+  while (stack.length > 0 && last(stack).start >= node.start) {
+    lastChild = stack.pop();
+  }
+
+  if (lastChild) {
+    if (lastChild.leadingComments) {
+      if (lastChild !== node && last(lastChild.leadingComments).end <= node.start) {
+        node.leadingComments = lastChild.leadingComments;
+        lastChild.leadingComments = null;
+      } else {
+        // A leading comment for an anonymous class had been stolen by its first ClassMethod,
+        // so this takes back the leading comment.
+        // See also: https://github.com/eslint/espree/issues/158
+        for (i = lastChild.leadingComments.length - 2; i >= 0; --i) {
+          if (lastChild.leadingComments[i].end <= node.start) {
+            node.leadingComments = lastChild.leadingComments.splice(0, i + 1);
+            break;
+          }
+        }
+      }
+    }
+  } else if (this.state.leadingComments.length > 0) {
+    if (last(this.state.leadingComments).end <= node.start) {
+      if (this.state.commentPreviousNode) {
+        for (j = 0; j < this.state.leadingComments.length; j++) {
+          if (this.state.leadingComments[j].end < this.state.commentPreviousNode.end) {
+            this.state.leadingComments.splice(j, 1);
+            j--;
+          }
+        }
+      }
+      if (this.state.leadingComments.length > 0) {
+        node.leadingComments = this.state.leadingComments;
+        this.state.leadingComments = [];
+      }
+    } else {
+      // https://github.com/eslint/espree/issues/2
+      //
+      // In special cases, such as return (without a value) and
+      // debugger, all comments will end up as leadingComments and
+      // will otherwise be eliminated. This step runs when the
+      // commentStack is empty and there are comments left
+      // in leadingComments.
+      //
+      // This loop figures out the stopping point between the actual
+      // leading and trailing comments by finding the location of the
+      // first comment that comes after the given node.
+      for (i = 0; i < this.state.leadingComments.length; i++) {
+        if (this.state.leadingComments[i].end > node.start) {
+          break;
+        }
+      }
+
+      // Split the array based on the location of the first comment
+      // that comes after the node. Keep in mind that this could
+      // result in an empty array, and if so, the array must be
+      // deleted.
+      node.leadingComments = this.state.leadingComments.slice(0, i);
+      if (node.leadingComments.length === 0) {
+        node.leadingComments = null;
+      }
+
+      // Similarly, trailing comments are attached later. The variable
+      // must be reset to null if there are no trailing comments.
+      trailingComments = this.state.leadingComments.slice(i);
+      if (trailingComments.length === 0) {
+        trailingComments = null;
+      }
+    }
+  }
+
+  this.state.commentPreviousNode = node;
+
+  if (trailingComments) {
+    if (trailingComments.length && trailingComments[0].start >= node.start && last(trailingComments).end <= node.end) {
+      node.innerComments = trailingComments;
+    } else {
+      node.trailingComments = trailingComments;
+    }
+  }
+
+  stack.push(node);
+};
+
+var pp$7 = Parser.prototype;
+
+pp$7.estreeParseRegExpLiteral = function (_ref) {
+  var pattern = _ref.pattern,
+      flags = _ref.flags;
+
+  var regex = null;
+  try {
+    regex = new RegExp(pattern, flags);
+  } catch (e) {
+    // In environments that don't support these flags value will
+    // be null as the regex can't be represented natively.
+  }
+  var node = this.estreeParseLiteral(regex);
+  node.regex = { pattern: pattern, flags: flags };
+
+  return node;
+};
+
+pp$7.estreeParseLiteral = function (value) {
+  return this.parseLiteral(value, "Literal");
+};
+
+pp$7.directiveToStmt = function (directive) {
+  var directiveLiteral = directive.value;
+
+  var stmt = this.startNodeAt(directive.start, directive.loc.start);
+  var expression = this.startNodeAt(directiveLiteral.start, directiveLiteral.loc.start);
+
+  expression.value = directiveLiteral.value;
+  expression.raw = directiveLiteral.extra.raw;
+
+  stmt.expression = this.finishNodeAt(expression, "Literal", directiveLiteral.end, directiveLiteral.loc.end);
+  stmt.directive = directiveLiteral.extra.raw.slice(1, -1);
+
+  return this.finishNodeAt(stmt, "ExpressionStatement", directive.end, directive.loc.end);
+};
+
+function isSimpleProperty(node) {
+  return node && node.type === "Property" && node.kind === "init" && node.method === false;
+}
+
+var estreePlugin = function (instance) {
+  instance.extend("checkDeclaration", function (inner) {
+    return function (node) {
+      if (isSimpleProperty(node)) {
+        this.checkDeclaration(node.value);
+      } else {
+        inner.call(this, node);
+      }
+    };
+  });
+
+  instance.extend("checkGetterSetterParamCount", function () {
+    return function (prop) {
+      var paramCount = prop.kind === "get" ? 0 : 1;
+      if (prop.value.params.length !== paramCount) {
+        var start = prop.start;
+        if (prop.kind === "get") {
+          this.raise(start, "getter should have no params");
+        } else {
+          this.raise(start, "setter should have exactly one param");
+        }
+      }
+    };
+  });
+
+  instance.extend("checkLVal", function (inner) {
+    return function (expr, isBinding, checkClashes) {
+      var _this = this;
+
+      switch (expr.type) {
+        case "ObjectPattern":
+          expr.properties.forEach(function (prop) {
+            _this.checkLVal(prop.type === "Property" ? prop.value : prop, isBinding, checkClashes, "object destructuring pattern");
+          });
+          break;
+        default:
+          for (var _len = arguments.length, args = Array(_len > 3 ? _len - 3 : 0), _key = 3; _key < _len; _key++) {
+            args[_key - 3] = arguments[_key];
+          }
+
+          inner.call.apply(inner, [this, expr, isBinding, checkClashes].concat(args));
+      }
+    };
+  });
+
+  instance.extend("checkPropClash", function () {
+    return function (prop, propHash) {
+      if (prop.computed || !isSimpleProperty(prop)) return;
+
+      var key = prop.key;
+      // It is either an Identifier or a String/NumericLiteral
+      var name = key.type === "Identifier" ? key.name : String(key.value);
+
+      if (name === "__proto__") {
+        if (propHash.proto) this.raise(key.start, "Redefinition of __proto__ property");
+        propHash.proto = true;
+      }
+    };
+  });
+
+  instance.extend("isStrictBody", function () {
+    return function (node, isExpression) {
+      if (!isExpression && node.body.body.length > 0) {
+        for (var _iterator = node.body.body, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
+          var _ref2;
+
+          if (_isArray) {
+            if (_i >= _iterator.length) break;
+            _ref2 = _iterator[_i++];
+          } else {
+            _i = _iterator.next();
+            if (_i.done) break;
+            _ref2 = _i.value;
+          }
+
+          var directive = _ref2;
+
+          if (directive.type === "ExpressionStatement" && directive.expression.type === "Literal") {
+            if (directive.expression.value === "use strict") return true;
+          } else {
+            // Break for the first non literal expression
+            break;
+          }
+        }
+      }
+
+      return false;
+    };
+  });
+
+  instance.extend("isValidDirective", function () {
+    return function (stmt) {
+      return stmt.type === "ExpressionStatement" && stmt.expression.type === "Literal" && typeof stmt.expression.value === "string" && (!stmt.expression.extra || !stmt.expression.extra.parenthesized);
+    };
+  });
+
+  instance.extend("parseBlockBody", function (inner) {
+    return function (node) {
+      var _this2 = this;
+
+      for (var _len2 = arguments.length, args = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
+        args[_key2 - 1] = arguments[_key2];
+      }
+
+      inner.call.apply(inner, [this, node].concat(args));
+
+      node.directives.reverse().forEach(function (directive) {
+        node.body.unshift(_this2.directiveToStmt(directive));
+      });
+      delete node.directives;
+    };
+  });
+
+  instance.extend("parseClassMethod", function (inner) {
+    return function (classBody) {
+      for (var _len3 = arguments.length, args = Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
+        args[_key3 - 1] = arguments[_key3];
+      }
+
+      inner.call.apply(inner, [this, classBody].concat(args));
+
+      var body = classBody.body;
+      body[body.length - 1].type = "MethodDefinition";
+    };
+  });
+
+  instance.extend("parseExprAtom", function (inner) {
+    return function () {
+      switch (this.state.type) {
+        case types.regexp:
+          return this.estreeParseRegExpLiteral(this.state.value);
+
+        case types.num:
+        case types.string:
+          return this.estreeParseLiteral(this.state.value);
+
+        case types._null:
+          return this.estreeParseLiteral(null);
+
+        case types._true:
+          return this.estreeParseLiteral(true);
+
+        case types._false:
+          return this.estreeParseLiteral(false);
+
+        default:
+          for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+            args[_key4] = arguments[_key4];
+          }
+
+          return inner.call.apply(inner, [this].concat(args));
+      }
+    };
+  });
+
+  instance.extend("parseLiteral", function (inner) {
+    return function () {
+      for (var _len5 = arguments.length, args = Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {
+        args[_key5] = arguments[_key5];
+      }
+
+      var node = inner.call.apply(inner, [this].concat(args));
+      node.raw = node.extra.raw;
+      delete node.extra;
+
+      return node;
+    };
+  });
+
+  instance.extend("parseMethod", function (inner) {
+    return function (node) {
+      var funcNode = this.startNode();
+      funcNode.kind = node.kind; // provide kind, so inner method correctly sets state
+
+      for (var _len6 = arguments.length, args = Array(_len6 > 1 ? _len6 - 1 : 0), _key6 = 1; _key6 < _len6; _key6++) {
+        args[_key6 - 1] = arguments[_key6];
+      }
+
+      funcNode = inner.call.apply(inner, [this, funcNode].concat(args));
+      delete funcNode.kind;
+      node.value = this.finishNode(funcNode, "FunctionExpression");
+
+      return node;
+    };
+  });
+
+  instance.extend("parseObjectMethod", function (inner) {
+    return function () {
+      for (var _len7 = arguments.length, args = Array(_len7), _key7 = 0; _key7 < _len7; _key7++) {
+        args[_key7] = arguments[_key7];
+      }
+
+      var node = inner.call.apply(inner, [this].concat(args));
+
+      if (node) {
+        if (node.kind === "method") node.kind = "init";
+        node.type = "Property";
+      }
+
+      return node;
+    };
+  });
+
+  instance.extend("parseObjectProperty", function (inner) {
+    return function () {
+      for (var _len8 = arguments.length, args = Array(_len8), _key8 = 0; _key8 < _len8; _key8++) {
+        args[_key8] = arguments[_key8];
+      }
+
+      var node = inner.call.apply(inner, [this].concat(args));
+
+      if (node) {
+        node.kind = "init";
+        node.type = "Property";
+      }
+
+      return node;
+    };
+  });
+
+  instance.extend("toAssignable", function (inner) {
+    return function (node, isBinding) {
+      for (var _len9 = arguments.length, args = Array(_len9 > 2 ? _len9 - 2 : 0), _key9 = 2; _key9 < _len9; _key9++) {
+        args[_key9 - 2] = arguments[_key9];
+      }
+
+      if (isSimpleProperty(node)) {
+        this.toAssignable.apply(this, [node.value, isBinding].concat(args));
+
+        return node;
+      } else if (node.type === "ObjectExpression") {
+        node.type = "ObjectPattern";
+        for (var _iterator2 = node.properties, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
+          var _ref3;
+
+          if (_isArray2) {
+            if (_i2 >= _iterator2.length) break;
+            _ref3 = _iterator2[_i2++];
+          } else {
+            _i2 = _iterator2.next();
+            if (_i2.done) break;
+            _ref3 = _i2.value;
+          }
+
+          var prop = _ref3;
+
+          if (prop.kind === "get" || prop.kind === "set") {
+            this.raise(prop.key.start, "Object pattern can't contain getter or setter");
+          } else if (prop.method) {
+            this.raise(prop.key.start, "Object pattern can't contain methods");
+          } else {
+            this.toAssignable(prop, isBinding, "object destructuring pattern");
+          }
+        }
+
+        return node;
+      }
+
+      return inner.call.apply(inner, [this, node, isBinding].concat(args));
+    };
+  });
+};
+
+/* eslint max-len: 0 */
+
+var primitiveTypes = ["any", "mixed", "empty", "bool", "boolean", "number", "string", "void", "null"];
+
+var pp$8 = Parser.prototype;
+
+pp$8.flowParseTypeInitialiser = function (tok) {
+  var oldInType = this.state.inType;
+  this.state.inType = true;
+  this.expect(tok || types.colon);
+
+  var type = this.flowParseType();
+  this.state.inType = oldInType;
+  return type;
+};
+
+pp$8.flowParsePredicate = function () {
+  var node = this.startNode();
+  var moduloLoc = this.state.startLoc;
+  var moduloPos = this.state.start;
+  this.expect(types.modulo);
+  var checksLoc = this.state.startLoc;
+  this.expectContextual("checks");
+  // Force '%' and 'checks' to be adjacent
+  if (moduloLoc.line !== checksLoc.line || moduloLoc.column !== checksLoc.column - 1) {
+    this.raise(moduloPos, "Spaces between ´%´ and ´checks´ are not allowed here.");
+  }
+  if (this.eat(types.parenL)) {
+    node.expression = this.parseExpression();
+    this.expect(types.parenR);
+    return this.finishNode(node, "DeclaredPredicate");
+  } else {
+    return this.finishNode(node, "InferredPredicate");
+  }
+};
+
+pp$8.flowParseTypeAndPredicateInitialiser = function () {
+  var oldInType = this.state.inType;
+  this.state.inType = true;
+  this.expect(types.colon);
+  var type = null;
+  var predicate = null;
+  if (this.match(types.modulo)) {
+    this.state.inType = oldInType;
+    predicate = this.flowParsePredicate();
+  } else {
+    type = this.flowParseType();
+    this.state.inType = oldInType;
+    if (this.match(types.modulo)) {
+      predicate = this.flowParsePredicate();
+    }
+  }
+  return [type, predicate];
+};
+
+pp$8.flowParseDeclareClass = function (node) {
+  this.next();
+  this.flowParseInterfaceish(node, true);
+  return this.finishNode(node, "DeclareClass");
+};
+
+pp$8.flowParseDeclareFunction = function (node) {
+  this.next();
+
+  var id = node.id = this.parseIdentifier();
+
+  var typeNode = this.startNode();
+  var typeContainer = this.startNode();
+
+  if (this.isRelational("<")) {
+    typeNode.typeParameters = this.flowParseTypeParameterDeclaration();
+  } else {
+    typeNode.typeParameters = null;
+  }
+
+  this.expect(types.parenL);
+  var tmp = this.flowParseFunctionTypeParams();
+  typeNode.params = tmp.params;
+  typeNode.rest = tmp.rest;
+  this.expect(types.parenR);
+  var predicate = null;
+
+  var _flowParseTypeAndPred = this.flowParseTypeAndPredicateInitialiser();
+
+  typeNode.returnType = _flowParseTypeAndPred[0];
+  predicate = _flowParseTypeAndPred[1];
+
+  typeContainer.typeAnnotation = this.finishNode(typeNode, "FunctionTypeAnnotation");
+  typeContainer.predicate = predicate;
+  id.typeAnnotation = this.finishNode(typeContainer, "TypeAnnotation");
+
+  this.finishNode(id, id.type);
+
+  this.semicolon();
+
+  return this.finishNode(node, "DeclareFunction");
+};
+
+pp$8.flowParseDeclare = function (node) {
+  if (this.match(types._class)) {
+    return this.flowParseDeclareClass(node);
+  } else if (this.match(types._function)) {
+    return this.flowParseDeclareFunction(node);
+  } else if (this.match(types._var)) {
+    return this.flowParseDeclareVariable(node);
+  } else if (this.isContextual("module")) {
+    if (this.lookahead().type === types.dot) {
+      return this.flowParseDeclareModuleExports(node);
+    } else {
+      return this.flowParseDeclareModule(node);
+    }
+  } else if (this.isContextual("type")) {
+    return this.flowParseDeclareTypeAlias(node);
+  } else if (this.isContextual("interface")) {
+    return this.flowParseDeclareInterface(node);
+  } else {
+    this.unexpected();
+  }
+};
+
+pp$8.flowParseDeclareVariable = function (node) {
+  this.next();
+  node.id = this.flowParseTypeAnnotatableIdentifier();
+  this.semicolon();
+  return this.finishNode(node, "DeclareVariable");
+};
+
+pp$8.flowParseDeclareModule = function (node) {
+  this.next();
+
+  if (this.match(types.string)) {
+    node.id = this.parseExprAtom();
+  } else {
+    node.id = this.parseIdentifier();
+  }
+
+  var bodyNode = node.body = this.startNode();
+  var body = bodyNode.body = [];
+  this.expect(types.braceL);
+  while (!this.match(types.braceR)) {
+    var _bodyNode = this.startNode();
+
+    if (this.match(types._import)) {
+      var lookahead = this.lookahead();
+      if (lookahead.value !== "type" && lookahead.value !== "typeof") {
+        this.unexpected(null, "Imports within a `declare module` body must always be `import type` or `import typeof`");
+      }
+
+      this.parseImport(_bodyNode);
+    } else {
+      this.expectContextual("declare", "Only declares and type imports are allowed inside declare module");
+
+      _bodyNode = this.flowParseDeclare(_bodyNode, true);
+    }
+
+    body.push(_bodyNode);
+  }
+  this.expect(types.braceR);
+
+  this.finishNode(bodyNode, "BlockStatement");
+  return this.finishNode(node, "DeclareModule");
+};
+
+pp$8.flowParseDeclareModuleExports = function (node) {
+  this.expectContextual("module");
+  this.expect(types.dot);
+  this.expectContextual("exports");
+  node.typeAnnotation = this.flowParseTypeAnnotation();
+  this.semicolon();
+
+  return this.finishNode(node, "DeclareModuleExports");
+};
+
+pp$8.flowParseDeclareTypeAlias = function (node) {
+  this.next();
+  this.flowParseTypeAlias(node);
+  return this.finishNode(node, "DeclareTypeAlias");
+};
+
+pp$8.flowParseDeclareInterface = function (node) {
+  this.next();
+  this.flowParseInterfaceish(node);
+  return this.finishNode(node, "DeclareInterface");
+};
+
+// Interfaces
+
+pp$8.flowParseInterfaceish = function (node, allowStatic) {
+  node.id = this.parseIdentifier();
+
+  if (this.isRelational("<")) {
+    node.typeParameters = this.flowParseTypeParameterDeclaration();
+  } else {
+    node.typeParameters = null;
+  }
+
+  node.extends = [];
+  node.mixins = [];
+
+  if (this.eat(types._extends)) {
+    do {
+      node.extends.push(this.flowParseInterfaceExtends());
+    } while (this.eat(types.comma));
+  }
+
+  if (this.isContextual("mixins")) {
+    this.next();
+    do {
+      node.mixins.push(this.flowParseInterfaceExtends());
+    } while (this.eat(types.comma));
+  }
+
+  node.body = this.flowParseObjectType(allowStatic);
+};
+
+pp$8.flowParseInterfaceExtends = function () {
+  var node = this.startNode();
+
+  node.id = this.flowParseQualifiedTypeIdentifier();
+  if (this.isRelational("<")) {
+    node.typeParameters = this.flowParseTypeParameterInstantiation();
+  } else {
+    node.typeParameters = null;
+  }
+
+  return this.finishNode(node, "InterfaceExtends");
+};
+
+pp$8.flowParseInterface = function (node) {
+  this.flowParseInterfaceish(node, false);
+  return this.finishNode(node, "InterfaceDeclaration");
+};
+
+pp$8.flowParseRestrictedIdentifier = function (liberal) {
+  if (primitiveTypes.indexOf(this.state.value) > -1) {
+    this.raise(this.state.start, "Cannot overwrite primitive type " + this.state.value);
+  }
+
+  return this.parseIdentifier(liberal);
+};
+
+// Type aliases
+
+pp$8.flowParseTypeAlias = function (node) {
+  node.id = this.flowParseRestrictedIdentifier();
+
+  if (this.isRelational("<")) {
+    node.typeParameters = this.flowParseTypeParameterDeclaration();
+  } else {
+    node.typeParameters = null;
+  }
+
+  node.right = this.flowParseTypeInitialiser(types.eq);
+  this.semicolon();
+
+  return this.finishNode(node, "TypeAlias");
+};
+
+// Type annotations
+
+pp$8.flowParseTypeParameter = function () {
+  var node = this.startNode();
+
+  var variance = this.flowParseVariance();
+
+  var ident = this.flowParseTypeAnnotatableIdentifier();
+  node.name = ident.name;
+  node.variance = variance;
+  node.bound = ident.typeAnnotation;
+
+  if (this.match(types.eq)) {
+    this.eat(types.eq);
+    node.default = this.flowParseType();
+  }
+
+  return this.finishNode(node, "TypeParameter");
+};
+
+pp$8.flowParseTypeParameterDeclaration = function () {
+  var oldInType = this.state.inType;
+  var node = this.startNode();
+  node.params = [];
+
+  this.state.inType = true;
+
+  // istanbul ignore else: this condition is already checked at all call sites
+  if (this.isRelational("<") || this.match(types.jsxTagStart)) {
+    this.next();
+  } else {
+    this.unexpected();
+  }
+
+  do {
+    node.params.push(this.flowParseTypeParameter());
+    if (!this.isRelational(">")) {
+      this.expect(types.comma);
+    }
+  } while (!this.isRelational(">"));
+  this.expectRelational(">");
+
+  this.state.inType = oldInType;
+
+  return this.finishNode(node, "TypeParameterDeclaration");
+};
+
+pp$8.flowParseTypeParameterInstantiation = function () {
+  var node = this.startNode();
+  var oldInType = this.state.inType;
+  node.params = [];
+
+  this.state.inType = true;
+
+  this.expectRelational("<");
+  while (!this.isRelational(">")) {
+    node.params.push(this.flowParseType());
+    if (!this.isRelational(">")) {
+      this.expect(types.comma);
+    }
+  }
+  this.expectRelational(">");
+
+  this.state.inType = oldInType;
+
+  return this.finishNode(node, "TypeParameterInstantiation");
+};
+
+pp$8.flowParseObjectPropertyKey = function () {
+  return this.match(types.num) || this.match(types.string) ? this.parseExprAtom() : this.parseIdentifier(true);
+};
+
+pp$8.flowParseObjectTypeIndexer = function (node, isStatic, variance) {
+  node.static = isStatic;
+
+  this.expect(types.bracketL);
+  if (this.lookahead().type === types.colon) {
+    node.id = this.flowParseObjectPropertyKey();
+    node.key = this.flowParseTypeInitialiser();
+  } else {
+    node.id = null;
+    node.key = this.flowParseType();
+  }
+  this.expect(types.bracketR);
+  node.value = this.flowParseTypeInitialiser();
+  node.variance = variance;
+
+  this.flowObjectTypeSemicolon();
+  return this.finishNode(node, "ObjectTypeIndexer");
+};
+
+pp$8.flowParseObjectTypeMethodish = function (node) {
+  node.params = [];
+  node.rest = null;
+  node.typeParameters = null;
+
+  if (this.isRelational("<")) {
+    node.typeParameters = this.flowParseTypeParameterDeclaration();
+  }
+
+  this.expect(types.parenL);
+  while (this.match(types.name)) {
+    node.params.push(this.flowParseFunctionTypeParam());
+    if (!this.match(types.parenR)) {
+      this.expect(types.comma);
+    }
+  }
+
+  if (this.eat(types.ellipsis)) {
+    node.rest = this.flowParseFunctionTypeParam();
+  }
+  this.expect(types.parenR);
+  node.returnType = this.flowParseTypeInitialiser();
+
+  return this.finishNode(node, "FunctionTypeAnnotation");
+};
+
+pp$8.flowParseObjectTypeMethod = function (startPos, startLoc, isStatic, key) {
+  var node = this.startNodeAt(startPos, startLoc);
+  node.value = this.flowParseObjectTypeMethodish(this.startNodeAt(startPos, startLoc));
+  node.static = isStatic;
+  node.key = key;
+  node.optional = false;
+  this.flowObjectTypeSemicolon();
+  return this.finishNode(node, "ObjectTypeProperty");
+};
+
+pp$8.flowParseObjectTypeCallProperty = function (node, isStatic) {
+  var valueNode = this.startNode();
+  node.static = isStatic;
+  node.value = this.flowParseObjectTypeMethodish(valueNode);
+  this.flowObjectTypeSemicolon();
+  return this.finishNode(node, "ObjectTypeCallProperty");
+};
+
+pp$8.flowParseObjectType = function (allowStatic, allowExact) {
+  var oldInType = this.state.inType;
+  this.state.inType = true;
+
+  var nodeStart = this.startNode();
+  var node = void 0;
+  var propertyKey = void 0;
+  var isStatic = false;
+
+  nodeStart.callProperties = [];
+  nodeStart.properties = [];
+  nodeStart.indexers = [];
+
+  var endDelim = void 0;
+  var exact = void 0;
+  if (allowExact && this.match(types.braceBarL)) {
+    this.expect(types.braceBarL);
+    endDelim = types.braceBarR;
+    exact = true;
+  } else {
+    this.expect(types.braceL);
+    endDelim = types.braceR;
+    exact = false;
+  }
+
+  nodeStart.exact = exact;
+
+  while (!this.match(endDelim)) {
+    var optional = false;
+    var startPos = this.state.start;
+    var startLoc = this.state.startLoc;
+    node = this.startNode();
+    if (allowStatic && this.isContextual("static") && this.lookahead().type !== types.colon) {
+      this.next();
+      isStatic = true;
+    }
+
+    var variancePos = this.state.start;
+    var variance = this.flowParseVariance();
+
+    if (this.match(types.bracketL)) {
+      nodeStart.indexers.push(this.flowParseObjectTypeIndexer(node, isStatic, variance));
+    } else if (this.match(types.parenL) || this.isRelational("<")) {
+      if (variance) {
+        this.unexpected(variancePos);
+      }
+      nodeStart.callProperties.push(this.flowParseObjectTypeCallProperty(node, isStatic));
+    } else {
+      propertyKey = this.flowParseObjectPropertyKey();
+      if (this.isRelational("<") || this.match(types.parenL)) {
+        // This is a method property
+        if (variance) {
+          this.unexpected(variancePos);
+        }
+        nodeStart.properties.push(this.flowParseObjectTypeMethod(startPos, startLoc, isStatic, propertyKey));
+      } else {
+        if (this.eat(types.question)) {
+          optional = true;
+        }
+        node.key = propertyKey;
+        node.value = this.flowParseTypeInitialiser();
+        node.optional = optional;
+        node.static = isStatic;
+        node.variance = variance;
+        this.flowObjectTypeSemicolon();
+        nodeStart.properties.push(this.finishNode(node, "ObjectTypeProperty"));
+      }
+    }
+
+    isStatic = false;
+  }
+
+  this.expect(endDelim);
+
+  var out = this.finishNode(nodeStart, "ObjectTypeAnnotation");
+
+  this.state.inType = oldInType;
+
+  return out;
+};
+
+pp$8.flowObjectTypeSemicolon = function () {
+  if (!this.eat(types.semi) && !this.eat(types.comma) && !this.match(types.braceR) && !this.match(types.braceBarR)) {
+    this.unexpected();
+  }
+};
+
+pp$8.flowParseQualifiedTypeIdentifier = function (startPos, startLoc, id) {
+  startPos = startPos || this.state.start;
+  startLoc = startLoc || this.state.startLoc;
+  var node = id || this.parseIdentifier();
+
+  while (this.eat(types.dot)) {
+    var node2 = this.startNodeAt(startPos, startLoc);
+    node2.qualification = node;
+    node2.id = this.parseIdentifier();
+    node = this.finishNode(node2, "QualifiedTypeIdentifier");
+  }
+
+  return node;
+};
+
+pp$8.flowParseGenericType = function (startPos, startLoc, id) {
+  var node = this.startNodeAt(startPos, startLoc);
+
+  node.typeParameters = null;
+  node.id = this.flowParseQualifiedTypeIdentifier(startPos, startLoc, id);
+
+  if (this.isRelational("<")) {
+    node.typeParameters = this.flowParseTypeParameterInstantiation();
+  }
+
+  return this.finishNode(node, "GenericTypeAnnotation");
+};
+
+pp$8.flowParseTypeofType = function () {
+  var node = this.startNode();
+  this.expect(types._typeof);
+  node.argument = this.flowParsePrimaryType();
+  return this.finishNode(node, "TypeofTypeAnnotation");
+};
+
+pp$8.flowParseTupleType = function () {
+  var node = this.startNode();
+  node.types = [];
+  this.expect(types.bracketL);
+  // We allow trailing commas
+  while (this.state.pos < this.input.length && !this.match(types.bracketR)) {
+    node.types.push(this.flowParseType());
+    if (this.match(types.bracketR)) break;
+    this.expect(types.comma);
+  }
+  this.expect(types.bracketR);
+  return this.finishNode(node, "TupleTypeAnnotation");
+};
+
+pp$8.flowParseFunctionTypeParam = function () {
+  var name = null;
+  var optional = false;
+  var typeAnnotation = null;
+  var node = this.startNode();
+  var lh = this.lookahead();
+  if (lh.type === types.colon || lh.type === types.question) {
+    name = this.parseIdentifier();
+    if (this.eat(types.question)) {
+      optional = true;
+    }
+    typeAnnotation = this.flowParseTypeInitialiser();
+  } else {
+    typeAnnotation = this.flowParseType();
+  }
+  node.name = name;
+  node.optional = optional;
+  node.typeAnnotation = typeAnnotation;
+  return this.finishNode(node, "FunctionTypeParam");
+};
+
+pp$8.reinterpretTypeAsFunctionTypeParam = function (type) {
+  var node = this.startNodeAt(type.start, type.loc);
+  node.name = null;
+  node.optional = false;
+  node.typeAnnotation = type;
+  return this.finishNode(node, "FunctionTypeParam");
+};
+
+pp$8.flowParseFunctionTypeParams = function () {
+  var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
+
+  var ret = { params: params, rest: null };
+  while (!this.match(types.parenR) && !this.match(types.ellipsis)) {
+    ret.params.push(this.flowParseFunctionTypeParam());
+    if (!this.match(types.parenR)) {
+      this.expect(types.comma);
+    }
+  }
+  if (this.eat(types.ellipsis)) {
+    ret.rest = this.flowParseFunctionTypeParam();
+  }
+  return ret;
+};
+
+pp$8.flowIdentToTypeAnnotation = function (startPos, startLoc, node, id) {
+  switch (id.name) {
+    case "any":
+      return this.finishNode(node, "AnyTypeAnnotation");
+
+    case "void":
+      return this.finishNode(node, "VoidTypeAnnotation");
+
+    case "bool":
+    case "boolean":
+      return this.finishNode(node, "BooleanTypeAnnotation");
+
+    case "mixed":
+      return this.finishNode(node, "MixedTypeAnnotation");
+
+    case "empty":
+      return this.finishNode(node, "EmptyTypeAnnotation");
+
+    case "number":
+      return this.finishNode(node, "NumberTypeAnnotation");
+
+    case "string":
+      return this.finishNode(node, "StringTypeAnnotation");
+
+    default:
+      return this.flowParseGenericType(startPos, startLoc, id);
+  }
+};
+
+// The parsing of types roughly parallels the parsing of expressions, and
+// primary types are kind of like primary expressions...they're the
+// primitives with which other types are constructed.
+pp$8.flowParsePrimaryType = function () {
+  var startPos = this.state.start;
+  var startLoc = this.state.startLoc;
+  var node = this.startNode();
+  var tmp = void 0;
+  var type = void 0;
+  var isGroupedType = false;
+  var oldNoAnonFunctionType = this.state.noAnonFunctionType;
+
+  switch (this.state.type) {
+    case types.name:
+      return this.flowIdentToTypeAnnotation(startPos, startLoc, node, this.parseIdentifier());
+
+    case types.braceL:
+      return this.flowParseObjectType(false, false);
+
+    case types.braceBarL:
+      return this.flowParseObjectType(false, true);
+
+    case types.bracketL:
+      return this.flowParseTupleType();
+
+    case types.relational:
+      if (this.state.value === "<") {
+        node.typeParameters = this.flowParseTypeParameterDeclaration();
+        this.expect(types.parenL);
+        tmp = this.flowParseFunctionTypeParams();
+        node.params = tmp.params;
+        node.rest = tmp.rest;
+        this.expect(types.parenR);
+
+        this.expect(types.arrow);
+
+        node.returnType = this.flowParseType();
+
+        return this.finishNode(node, "FunctionTypeAnnotation");
+      }
+      break;
+
+    case types.parenL:
+      this.next();
+
+      // Check to see if this is actually a grouped type
+      if (!this.match(types.parenR) && !this.match(types.ellipsis)) {
+        if (this.match(types.name)) {
+          var token = this.lookahead().type;
+          isGroupedType = token !== types.question && token !== types.colon;
+        } else {
+          isGroupedType = true;
+        }
+      }
+
+      if (isGroupedType) {
+        this.state.noAnonFunctionType = false;
+        type = this.flowParseType();
+        this.state.noAnonFunctionType = oldNoAnonFunctionType;
+
+        // A `,` or a `) =>` means this is an anonymous function type
+        if (this.state.noAnonFunctionType || !(this.match(types.comma) || this.match(types.parenR) && this.lookahead().type === types.arrow)) {
+          this.expect(types.parenR);
+          return type;
+        } else {
+          // Eat a comma if there is one
+          this.eat(types.comma);
+        }
+      }
+
+      if (type) {
+        tmp = this.flowParseFunctionTypeParams([this.reinterpretTypeAsFunctionTypeParam(type)]);
+      } else {
+        tmp = this.flowParseFunctionTypeParams();
+      }
+
+      node.params = tmp.params;
+      node.rest = tmp.rest;
+
+      this.expect(types.parenR);
+
+      this.expect(types.arrow);
+
+      node.returnType = this.flowParseType();
+
+      node.typeParameters = null;
+
+      return this.finishNode(node, "FunctionTypeAnnotation");
+
+    case types.string:
+      return this.parseLiteral(this.state.value, "StringLiteralTypeAnnotation");
+
+    case types._true:case types._false:
+      node.value = this.match(types._true);
+      this.next();
+      return this.finishNode(node, "BooleanLiteralTypeAnnotation");
+
+    case types.plusMin:
+      if (this.state.value === "-") {
+        this.next();
+        if (!this.match(types.num)) this.unexpected(null, "Unexpected token, expected number");
+
+        return this.parseLiteral(-this.state.value, "NumericLiteralTypeAnnotation", node.start, node.loc.start);
+      }
+
+      this.unexpected();
+    case types.num:
+      return this.parseLiteral(this.state.value, "NumericLiteralTypeAnnotation");
+
+    case types._null:
+      node.value = this.match(types._null);
+      this.next();
+      return this.finishNode(node, "NullLiteralTypeAnnotation");
+
+    case types._this:
+      node.value = this.match(types._this);
+      this.next();
+      return this.finishNode(node, "ThisTypeAnnotation");
+
+    case types.star:
+      this.next();
+      return this.finishNode(node, "ExistentialTypeParam");
+
+    default:
+      if (this.state.type.keyword === "typeof") {
+        return this.flowParseTypeofType();
+      }
+  }
+
+  this.unexpected();
+};
+
+pp$8.flowParsePostfixType = function () {
+  var startPos = this.state.start,
+      startLoc = this.state.startLoc;
+  var type = this.flowParsePrimaryType();
+  while (!this.canInsertSemicolon() && this.match(types.bracketL)) {
+    var node = this.startNodeAt(startPos, startLoc);
+    node.elementType = type;
+    this.expect(types.bracketL);
+    this.expect(types.bracketR);
+    type = this.finishNode(node, "ArrayTypeAnnotation");
+  }
+  return type;
+};
+
+pp$8.flowParsePrefixType = function () {
+  var node = this.startNode();
+  if (this.eat(types.question)) {
+    node.typeAnnotation = this.flowParsePrefixType();
+    return this.finishNode(node, "NullableTypeAnnotation");
+  } else {
+    return this.flowParsePostfixType();
+  }
+};
+
+pp$8.flowParseAnonFunctionWithoutParens = function () {
+  var param = this.flowParsePrefixType();
+  if (!this.state.noAnonFunctionType && this.eat(types.arrow)) {
+    var node = this.startNodeAt(param.start, param.loc);
+    node.params = [this.reinterpretTypeAsFunctionTypeParam(param)];
+    node.rest = null;
+    node.returnType = this.flowParseType();
+    node.typeParameters = null;
+    return this.finishNode(node, "FunctionTypeAnnotation");
+  }
+  return param;
+};
+
+pp$8.flowParseIntersectionType = function () {
+  var node = this.startNode();
+  this.eat(types.bitwiseAND);
+  var type = this.flowParseAnonFunctionWithoutParens();
+  node.types = [type];
+  while (this.eat(types.bitwiseAND)) {
+    node.types.push(this.flowParseAnonFunctionWithoutParens());
+  }
+  return node.types.length === 1 ? type : this.finishNode(node, "IntersectionTypeAnnotation");
+};
+
+pp$8.flowParseUnionType = function () {
+  var node = this.startNode();
+  this.eat(types.bitwiseOR);
+  var type = this.flowParseIntersectionType();
+  node.types = [type];
+  while (this.eat(types.bitwiseOR)) {
+    node.types.push(this.flowParseIntersectionType());
+  }
+  return node.types.length === 1 ? type : this.finishNode(node, "UnionTypeAnnotation");
+};
+
+pp$8.flowParseType = function () {
+  var oldInType = this.state.inType;
+  this.state.inType = true;
+  var type = this.flowParseUnionType();
+  this.state.inType = oldInType;
+  return type;
+};
+
+pp$8.flowParseTypeAnnotation = function () {
+  var node = this.startNode();
+  node.typeAnnotation = this.flowParseTypeInitialiser();
+  return this.finishNode(node, "TypeAnnotation");
+};
+
+pp$8.flowParseTypeAndPredicateAnnotation = function () {
+  var node = this.startNode();
+
+  var _flowParseTypeAndPred2 = this.flowParseTypeAndPredicateInitialiser();
+
+  node.typeAnnotation = _flowParseTypeAndPred2[0];
+  node.predicate = _flowParseTypeAndPred2[1];
+
+  return this.finishNode(node, "TypeAnnotation");
+};
+
+pp$8.flowParseTypeAnnotatableIdentifier = function () {
+  var ident = this.flowParseRestrictedIdentifier();
+  if (this.match(types.colon)) {
+    ident.typeAnnotation = this.flowParseTypeAnnotation();
+    this.finishNode(ident, ident.type);
+  }
+  return ident;
+};
+
+pp$8.typeCastToParameter = function (node) {
+  node.expression.typeAnnotation = node.typeAnnotation;
+
+  return this.finishNodeAt(node.expression, node.expression.type, node.typeAnnotation.end, node.typeAnnotation.loc.end);
+};
+
+pp$8.flowParseVariance = function () {
+  var variance = null;
+  if (this.match(types.plusMin)) {
+    if (this.state.value === "+") {
+      variance = "plus";
+    } else if (this.state.value === "-") {
+      variance = "minus";
+    }
+    this.next();
+  }
+  return variance;
+};
+
+var flowPlugin = function (instance) {
+  // plain function return types: function name(): string {}
+  instance.extend("parseFunctionBody", function (inner) {
+    return function (node, allowExpression) {
+      if (this.match(types.colon) && !allowExpression) {
+        // if allowExpression is true then we're parsing an arrow function and if
+        // there's a return type then it's been handled elsewhere
+        node.returnType = this.flowParseTypeAndPredicateAnnotation();
+      }
+
+      return inner.call(this, node, allowExpression);
+    };
+  });
+
+  // interfaces
+  instance.extend("parseStatement", function (inner) {
+    return function (declaration, topLevel) {
+      // strict mode handling of `interface` since it's a reserved word
+      if (this.state.strict && this.match(types.name) && this.state.value === "interface") {
+        var node = this.startNode();
+        this.next();
+        return this.flowParseInterface(node);
+      } else {
+        return inner.call(this, declaration, topLevel);
+      }
+    };
+  });
+
+  // declares, interfaces and type aliases
+  instance.extend("parseExpressionStatement", function (inner) {
+    return function (node, expr) {
+      if (expr.type === "Identifier") {
+        if (expr.name === "declare") {
+          if (this.match(types._class) || this.match(types.name) || this.match(types._function) || this.match(types._var)) {
+            return this.flowParseDeclare(node);
+          }
+        } else if (this.match(types.name)) {
+          if (expr.name === "interface") {
+            return this.flowParseInterface(node);
+          } else if (expr.name === "type") {
+            return this.flowParseTypeAlias(node);
+          }
+        }
+      }
+
+      return inner.call(this, node, expr);
+    };
+  });
+
+  // export type
+  instance.extend("shouldParseExportDeclaration", function (inner) {
+    return function () {
+      return this.isContextual("type") || this.isContextual("interface") || inner.call(this);
+    };
+  });
+
+  instance.extend("parseConditional", function (inner) {
+    return function (expr, noIn, startPos, startLoc, refNeedsArrowPos) {
+      // only do the expensive clone if there is a question mark
+      // and if we come from inside parens
+      if (refNeedsArrowPos && this.match(types.question)) {
+        var state = this.state.clone();
+        try {
+          return inner.call(this, expr, noIn, startPos, startLoc);
+        } catch (err) {
+          if (err instanceof SyntaxError) {
+            this.state = state;
+            refNeedsArrowPos.start = err.pos || this.state.start;
+            return expr;
+          } else {
+            // istanbul ignore next: no such error is expected
+            throw err;
+          }
+        }
+      }
+
+      return inner.call(this, expr, noIn, startPos, startLoc);
+    };
+  });
+
+  instance.extend("parseParenItem", function (inner) {
+    return function (node, startLoc, startPos) {
+      node = inner.call(this, node, startLoc, startPos);
+      if (this.eat(types.question)) {
+        node.optional = true;
+      }
+
+      if (this.match(types.colon)) {
+        var typeCastNode = this.startNodeAt(startLoc, startPos);
+        typeCastNode.expression = node;
+        typeCastNode.typeAnnotation = this.flowParseTypeAnnotation();
+
+        return this.finishNode(typeCastNode, "TypeCastExpression");
+      }
+
+      return node;
+    };
+  });
+
+  instance.extend("parseExport", function (inner) {
+    return function (node) {
+      node = inner.call(this, node);
+      if (node.type === "ExportNamedDeclaration") {
+        node.exportKind = node.exportKind || "value";
+      }
+      return node;
+    };
+  });
+
+  instance.extend("parseExportDeclaration", function (inner) {
+    return function (node) {
+      if (this.isContextual("type")) {
+        node.exportKind = "type";
+
+        var declarationNode = this.startNode();
+        this.next();
+
+        if (this.match(types.braceL)) {
+          // export type { foo, bar };
+          node.specifiers = this.parseExportSpecifiers();
+          this.parseExportFrom(node);
+          return null;
+        } else {
+          // export type Foo = Bar;
+          return this.flowParseTypeAlias(declarationNode);
+        }
+      } else if (this.isContextual("interface")) {
+        node.exportKind = "type";
+        var _declarationNode = this.startNode();
+        this.next();
+        return this.flowParseInterface(_declarationNode);
+      } else {
+        return inner.call(this, node);
+      }
+    };
+  });
+
+  instance.extend("parseClassId", function (inner) {
+    return function (node) {
+      inner.apply(this, arguments);
+      if (this.isRelational("<")) {
+        node.typeParameters = this.flowParseTypeParameterDeclaration();
+      }
+    };
+  });
+
+  // don't consider `void` to be a keyword as then it'll use the void token type
+  // and set startExpr
+  instance.extend("isKeyword", function (inner) {
+    return function (name) {
+      if (this.state.inType && name === "void") {
+        return false;
+      } else {
+        return inner.call(this, name);
+      }
+    };
+  });
+
+  // ensure that inside flow types, we bypass the jsx parser plugin
+  instance.extend("readToken", function (inner) {
+    return function (code) {
+      if (this.state.inType && (code === 62 || code === 60)) {
+        return this.finishOp(types.relational, 1);
+      } else {
+        return inner.call(this, code);
+      }
+    };
+  });
+
+  // don't lex any token as a jsx one inside a flow type
+  instance.extend("jsx_readToken", function (inner) {
+    return function () {
+      if (!this.state.inType) return inner.call(this);
+    };
+  });
+
+  instance.extend("toAssignable", function (inner) {
+    return function (node, isBinding, contextDescription) {
+      if (node.type === "TypeCastExpression") {
+        return inner.call(this, this.typeCastToParameter(node), isBinding, contextDescription);
+      } else {
+        return inner.call(this, node, isBinding, contextDescription);
+      }
+    };
+  });
+
+  // turn type casts that we found in function parameter head into type annotated params
+  instance.extend("toAssignableList", function (inner) {
+    return function (exprList, isBinding, contextDescription) {
+      for (var i = 0; i < exprList.length; i++) {
+        var expr = exprList[i];
+        if (expr && expr.type === "TypeCastExpression") {
+          exprList[i] = this.typeCastToParameter(expr);
+        }
+      }
+      return inner.call(this, exprList, isBinding, contextDescription);
+    };
+  });
+
+  // this is a list of nodes, from something like a call expression, we need to filter the
+  // type casts that we've found that are illegal in this context
+  instance.extend("toReferencedList", function () {
+    return function (exprList) {
+      for (var i = 0; i < exprList.length; i++) {
+        var expr = exprList[i];
+        if (expr && expr._exprListItem && expr.type === "TypeCastExpression") {
+          this.raise(expr.start, "Unexpected type cast");
+        }
+      }
+
+      return exprList;
+    };
+  });
+
+  // parse an item inside a expression list eg. `(NODE, NODE)` where NODE represents
+  // the position where this function is called
+  instance.extend("parseExprListItem", function (inner) {
+    return function () {
+      var container = this.startNode();
+
+      for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+        args[_key] = arguments[_key];
+      }
+
+      var node = inner.call.apply(inner, [this].concat(args));
+      if (this.match(types.colon)) {
+        container._exprListItem = true;
+        container.expression = node;
+        container.typeAnnotation = this.flowParseTypeAnnotation();
+        return this.finishNode(container, "TypeCastExpression");
+      } else {
+        return node;
+      }
+    };
+  });
+
+  instance.extend("checkLVal", function (inner) {
+    return function (node) {
+      if (node.type !== "TypeCastExpression") {
+        return inner.apply(this, arguments);
+      }
+    };
+  });
+
+  // parse class property type annotations
+  instance.extend("parseClassProperty", function (inner) {
+    return function (node) {
+      delete node.variancePos;
+      if (this.match(types.colon)) {
+        node.typeAnnotation = this.flowParseTypeAnnotation();
+      }
+      return inner.call(this, node);
+    };
+  });
+
+  // determine whether or not we're currently in the position where a class property would appear
+  instance.extend("isClassProperty", function (inner) {
+    return function () {
+      return this.match(types.colon) || inner.call(this);
+    };
+  });
+
+  // parse type parameters for class methods
+  instance.extend("parseClassMethod", function (inner) {
+    return function (classBody, method) {
+      if (method.variance) {
+        this.unexpected(method.variancePos);
+      }
+      delete method.variance;
+      delete method.variancePos;
+      if (this.isRelational("<")) {
+        method.typeParameters = this.flowParseTypeParameterDeclaration();
+      }
+
+      for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
+        args[_key2 - 2] = arguments[_key2];
+      }
+
+      inner.call.apply(inner, [this, classBody, method].concat(args));
+    };
+  });
+
+  // parse a the super class type parameters and implements
+  instance.extend("parseClassSuper", function (inner) {
+    return function (node, isStatement) {
+      inner.call(this, node, isStatement);
+      if (node.superClass && this.isRelational("<")) {
+        node.superTypeParameters = this.flowParseTypeParameterInstantiation();
+      }
+      if (this.isContextual("implements")) {
+        this.next();
+        var implemented = node.implements = [];
+        do {
+          var _node = this.startNode();
+          _node.id = this.parseIdentifier();
+          if (this.isRelational("<")) {
+            _node.typeParameters = this.flowParseTypeParameterInstantiation();
+          } else {
+            _node.typeParameters = null;
+          }
+          implemented.push(this.finishNode(_node, "ClassImplements"));
+        } while (this.eat(types.comma));
+      }
+    };
+  });
+
+  instance.extend("parsePropertyName", function (inner) {
+    return function (node) {
+      var variancePos = this.state.start;
+      var variance = this.flowParseVariance();
+      var key = inner.call(this, node);
+      node.variance = variance;
+      node.variancePos = variancePos;
+      return key;
+    };
+  });
+
+  // parse type parameters for object method shorthand
+  instance.extend("parseObjPropValue", function (inner) {
+    return function (prop) {
+      if (prop.variance) {
+        this.unexpected(prop.variancePos);
+      }
+      delete prop.variance;
+      delete prop.variancePos;
+
+      var typeParameters = void 0;
+
+      // method shorthand
+      if (this.isRelational("<")) {
+        typeParameters = this.flowParseTypeParameterDeclaration();
+        if (!this.match(types.parenL)) this.unexpected();
+      }
+
+      inner.apply(this, arguments);
+
+      // add typeParameters if we found them
+      if (typeParameters) {
+        (prop.value || prop).typeParameters = typeParameters;
+      }
+    };
+  });
+
+  instance.extend("parseAssignableListItemTypes", function () {
+    return function (param) {
+      if (this.eat(types.question)) {
+        param.optional = true;
+      }
+      if (this.match(types.colon)) {
+        param.typeAnnotation = this.flowParseTypeAnnotation();
+      }
+      this.finishNode(param, param.type);
+      return param;
+    };
+  });
+
+  instance.extend("parseMaybeDefault", function (inner) {
+    return function () {
+      for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+        args[_key3] = arguments[_key3];
+      }
+
+      var node = inner.apply(this, args);
+
+      if (node.type === "AssignmentPattern" && node.typeAnnotation && node.right.start < node.typeAnnotation.start) {
+        this.raise(node.typeAnnotation.start, "Type annotations must come before default assignments, e.g. instead of `age = 25: number` use `age: number = 25`");
+      }
+
+      return node;
+    };
+  });
+
+  // parse typeof and type imports
+  instance.extend("parseImportSpecifiers", function (inner) {
+    return function (node) {
+      node.importKind = "value";
+
+      var kind = null;
+      if (this.match(types._typeof)) {
+        kind = "typeof";
+      } else if (this.isContextual("type")) {
+        kind = "type";
+      }
+      if (kind) {
+        var lh = this.lookahead();
+        if (lh.type === types.name && lh.value !== "from" || lh.type === types.braceL || lh.type === types.star) {
+          this.next();
+          node.importKind = kind;
+        }
+      }
+
+      inner.call(this, node);
+    };
+  });
+
+  // parse import-type/typeof shorthand
+  instance.extend("parseImportSpecifier", function () {
+    return function (node) {
+      var specifier = this.startNode();
+      var firstIdentLoc = this.state.start;
+      var firstIdent = this.parseIdentifier(true);
+
+      var specifierTypeKind = null;
+      if (firstIdent.name === "type") {
+        specifierTypeKind = "type";
+      } else if (firstIdent.name === "typeof") {
+        specifierTypeKind = "typeof";
+      }
+
+      var isBinding = false;
+      if (this.isContextual("as")) {
+        var as_ident = this.parseIdentifier(true);
+        if (specifierTypeKind !== null && !this.match(types.name) && !this.state.type.keyword) {
+          // `import {type as ,` or `import {type as }`
+          specifier.imported = as_ident;
+          specifier.importKind = specifierTypeKind;
+          specifier.local = as_ident.__clone();
+        } else {
+          // `import {type as foo`
+          specifier.imported = firstIdent;
+          specifier.importKind = null;
+          specifier.local = this.parseIdentifier();
+        }
+      } else if (specifierTypeKind !== null && (this.match(types.name) || this.state.type.keyword)) {
+        // `import {type foo`
+        specifier.imported = this.parseIdentifier(true);
+        specifier.importKind = specifierTypeKind;
+        if (this.eatContextual("as")) {
+          specifier.local = this.parseIdentifier();
+        } else {
+          isBinding = true;
+          specifier.local = specifier.imported.__clone();
+        }
+      } else {
+        isBinding = true;
+        specifier.imported = firstIdent;
+        specifier.importKind = null;
+        specifier.local = specifier.imported.__clone();
+      }
+
+      if ((node.importKind === "type" || node.importKind === "typeof") && (specifier.importKind === "type" || specifier.importKind === "typeof")) {
+        this.raise(firstIdentLoc, "`The `type` and `typeof` keywords on named imports can only be used on regular `import` statements. It cannot be used with `import type` or `import typeof` statements`");
+      }
+
+      if (isBinding) this.checkReservedWord(specifier.local.name, specifier.start, true, true);
+
+      this.checkLVal(specifier.local, true, undefined, "import specifier");
+      node.specifiers.push(this.finishNode(specifier, "ImportSpecifier"));
+    };
+  });
+
+  // parse function type parameters - function foo<T>() {}
+  instance.extend("parseFunctionParams", function (inner) {
+    return function (node) {
+      if (this.isRelational("<")) {
+        node.typeParameters = this.flowParseTypeParameterDeclaration();
+      }
+      inner.call(this, node);
+    };
+  });
+
+  // parse flow type annotations on variable declarator heads - let foo: string = bar
+  instance.extend("parseVarHead", function (inner) {
+    return function (decl) {
+      inner.call(this, decl);
+      if (this.match(types.colon)) {
+        decl.id.typeAnnotation = this.flowParseTypeAnnotation();
+        this.finishNode(decl.id, decl.id.type);
+      }
+    };
+  });
+
+  // parse the return type of an async arrow function - let foo = (async (): number => {});
+  instance.extend("parseAsyncArrowFromCallExpression", function (inner) {
+    return function (node, call) {
+      if (this.match(types.colon)) {
+        var oldNoAnonFunctionType = this.state.noAnonFunctionType;
+        this.state.noAnonFunctionType = true;
+        node.returnType = this.flowParseTypeAnnotation();
+        this.state.noAnonFunctionType = oldNoAnonFunctionType;
+      }
+
+      return inner.call(this, node, call);
+    };
+  });
+
+  // todo description
+  instance.extend("shouldParseAsyncArrow", function (inner) {
+    return function () {
+      return this.match(types.colon) || inner.call(this);
+    };
+  });
+
+  // We need to support type parameter declarations for arrow functions. This
+  // is tricky. There are three situations we need to handle
+  //
+  // 1. This is either JSX or an arrow function. We'll try JSX first. If that
+  //    fails, we'll try an arrow function. If that fails, we'll throw the JSX
+  //    error.
+  // 2. This is an arrow function. We'll parse the type parameter declaration,
+  //    parse the rest, make sure the rest is an arrow function, and go from
+  //    there
+  // 3. This is neither. Just call the inner function
+  instance.extend("parseMaybeAssign", function (inner) {
+    return function () {
+      var jsxError = null;
+
+      for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+        args[_key4] = arguments[_key4];
+      }
+
+      if (types.jsxTagStart && this.match(types.jsxTagStart)) {
+        var state = this.state.clone();
+        try {
+          return inner.apply(this, args);
+        } catch (err) {
+          if (err instanceof SyntaxError) {
+            this.state = state;
+            jsxError = err;
+          } else {
+            // istanbul ignore next: no such error is expected
+            throw err;
+          }
+        }
+      }
+
+      // Need to push something onto the context to stop
+      // the JSX plugin from messing with the tokens
+      this.state.context.push(types$1.parenExpression);
+      if (jsxError != null || this.isRelational("<")) {
+        var arrowExpression = void 0;
+        var typeParameters = void 0;
+        try {
+          typeParameters = this.flowParseTypeParameterDeclaration();
+
+          arrowExpression = inner.apply(this, args);
+          arrowExpression.typeParameters = typeParameters;
+          arrowExpression.start = typeParameters.start;
+          arrowExpression.loc.start = typeParameters.loc.start;
+        } catch (err) {
+          throw jsxError || err;
+        }
+
+        if (arrowExpression.type === "ArrowFunctionExpression") {
+          return arrowExpression;
+        } else if (jsxError != null) {
+          throw jsxError;
+        } else {
+          this.raise(typeParameters.start, "Expected an arrow function after this type parameter declaration");
+        }
+      }
+      this.state.context.pop();
+
+      return inner.apply(this, args);
+    };
+  });
+
+  // handle return types for arrow functions
+  instance.extend("parseArrow", function (inner) {
+    return function (node) {
+      if (this.match(types.colon)) {
+        var state = this.state.clone();
+        try {
+          var oldNoAnonFunctionType = this.state.noAnonFunctionType;
+          this.state.noAnonFunctionType = true;
+          var returnType = this.flowParseTypeAndPredicateAnnotation();
+          this.state.noAnonFunctionType = oldNoAnonFunctionType;
+
+          if (this.canInsertSemicolon()) this.unexpected();
+          if (!this.match(types.arrow)) this.unexpected();
+          // assign after it is clear it is an arrow
+          node.returnType = returnType;
+        } catch (err) {
+          if (err instanceof SyntaxError) {
+            this.state = state;
+          } else {
+            // istanbul ignore next: no such error is expected
+            throw err;
+          }
+        }
+      }
+
+      return inner.call(this, node);
+    };
+  });
+
+  instance.extend("shouldParseArrow", function (inner) {
+    return function () {
+      return this.match(types.colon) || inner.call(this);
+    };
+  });
+
+  instance.extend("isClassMutatorStarter", function (inner) {
+    return function () {
+      if (this.isRelational("<")) {
+        return true;
+      } else {
+        return inner.call(this);
+      }
+    };
+  });
+};
+
+// Adapted from String.fromcodepoint to export the function without modifying String
+/*! https://mths.be/fromcodepoint v0.2.1 by @mathias */
+
+// The MIT License (MIT)
+// Copyright (c) Mathias Bynens
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+// associated documentation files (the "Software"), to deal in the Software without restriction,
+// including without limitation the rights to use, copy, modify, merge, publish, distribute,
+// sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all copies or
+// substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+// NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var fromCodePoint = String.fromCodePoint;
+
+if (!fromCodePoint) {
+  var stringFromCharCode = String.fromCharCode;
+  var floor = Math.floor;
+  fromCodePoint = function fromCodePoint() {
+    var MAX_SIZE = 0x4000;
+    var codeUnits = [];
+    var highSurrogate = void 0;
+    var lowSurrogate = void 0;
+    var index = -1;
+    var length = arguments.length;
+    if (!length) {
+      return "";
+    }
+    var result = "";
+    while (++index < length) {
+      var codePoint = Number(arguments[index]);
+      if (!isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity`
+      codePoint < 0 || // not a valid Unicode code point
+      codePoint > 0x10FFFF || // not a valid Unicode code point
+      floor(codePoint) != codePoint // not an integer
+      ) {
+          throw RangeError("Invalid code point: " + codePoint);
+        }
+      if (codePoint <= 0xFFFF) {
+        // BMP code point
+        codeUnits.push(codePoint);
+      } else {
+        // Astral code point; split in surrogate halves
+        // https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+        codePoint -= 0x10000;
+        highSurrogate = (codePoint >> 10) + 0xD800;
+        lowSurrogate = codePoint % 0x400 + 0xDC00;
+        codeUnits.push(highSurrogate, lowSurrogate);
+      }
+      if (index + 1 == length || codeUnits.length > MAX_SIZE) {
+        result += stringFromCharCode.apply(null, codeUnits);
+        codeUnits.length = 0;
+      }
+    }
+    return result;
+  };
+}
+
+var fromCodePoint$1 = fromCodePoint;
+
+var XHTMLEntities = {
+  quot: "\"",
+  amp: "&",
+  apos: "'",
+  lt: "<",
+  gt: ">",
+  nbsp: "\xA0",
+  iexcl: "\xA1",
+  cent: "\xA2",
+  pound: "\xA3",
+  curren: "\xA4",
+  yen: "\xA5",
+  brvbar: "\xA6",
+  sect: "\xA7",
+  uml: "\xA8",
+  copy: "\xA9",
+  ordf: "\xAA",
+  laquo: "\xAB",
+  not: "\xAC",
+  shy: "\xAD",
+  reg: "\xAE",
+  macr: "\xAF",
+  deg: "\xB0",
+  plusmn: "\xB1",
+  sup2: "\xB2",
+  sup3: "\xB3",
+  acute: "\xB4",
+  micro: "\xB5",
+  para: "\xB6",
+  middot: "\xB7",
+  cedil: "\xB8",
+  sup1: "\xB9",
+  ordm: "\xBA",
+  raquo: "\xBB",
+  frac14: "\xBC",
+  frac12: "\xBD",
+  frac34: "\xBE",
+  iquest: "\xBF",
+  Agrave: "\xC0",
+  Aacute: "\xC1",
+  Acirc: "\xC2",
+  Atilde: "\xC3",
+  Auml: "\xC4",
+  Aring: "\xC5",
+  AElig: "\xC6",
+  Ccedil: "\xC7",
+  Egrave: "\xC8",
+  Eacute: "\xC9",
+  Ecirc: "\xCA",
+  Euml: "\xCB",
+  Igrave: "\xCC",
+  Iacute: "\xCD",
+  Icirc: "\xCE",
+  Iuml: "\xCF",
+  ETH: "\xD0",
+  Ntilde: "\xD1",
+  Ograve: "\xD2",
+  Oacute: "\xD3",
+  Ocirc: "\xD4",
+  Otilde: "\xD5",
+  Ouml: "\xD6",
+  times: "\xD7",
+  Oslash: "\xD8",
+  Ugrave: "\xD9",
+  Uacute: "\xDA",
+  Ucirc: "\xDB",
+  Uuml: "\xDC",
+  Yacute: "\xDD",
+  THORN: "\xDE",
+  szlig: "\xDF",
+  agrave: "\xE0",
+  aacute: "\xE1",
+  acirc: "\xE2",
+  atilde: "\xE3",
+  auml: "\xE4",
+  aring: "\xE5",
+  aelig: "\xE6",
+  ccedil: "\xE7",
+  egrave: "\xE8",
+  eacute: "\xE9",
+  ecirc: "\xEA",
+  euml: "\xEB",
+  igrave: "\xEC",
+  iacute: "\xED",
+  icirc: "\xEE",
+  iuml: "\xEF",
+  eth: "\xF0",
+  ntilde: "\xF1",
+  ograve: "\xF2",
+  oacute: "\xF3",
+  ocirc: "\xF4",
+  otilde: "\xF5",
+  ouml: "\xF6",
+  divide: "\xF7",
+  oslash: "\xF8",
+  ugrave: "\xF9",
+  uacute: "\xFA",
+  ucirc: "\xFB",
+  uuml: "\xFC",
+  yacute: "\xFD",
+  thorn: "\xFE",
+  yuml: "\xFF",
+  OElig: "\u0152",
+  oelig: "\u0153",
+  Scaron: "\u0160",
+  scaron: "\u0161",
+  Yuml: "\u0178",
+  fnof: "\u0192",
+  circ: "\u02C6",
+  tilde: "\u02DC",
+  Alpha: "\u0391",
+  Beta: "\u0392",
+  Gamma: "\u0393",
+  Delta: "\u0394",
+  Epsilon: "\u0395",
+  Zeta: "\u0396",
+  Eta: "\u0397",
+  Theta: "\u0398",
+  Iota: "\u0399",
+  Kappa: "\u039A",
+  Lambda: "\u039B",
+  Mu: "\u039C",
+  Nu: "\u039D",
+  Xi: "\u039E",
+  Omicron: "\u039F",
+  Pi: "\u03A0",
+  Rho: "\u03A1",
+  Sigma: "\u03A3",
+  Tau: "\u03A4",
+  Upsilon: "\u03A5",
+  Phi: "\u03A6",
+  Chi: "\u03A7",
+  Psi: "\u03A8",
+  Omega: "\u03A9",
+  alpha: "\u03B1",
+  beta: "\u03B2",
+  gamma: "\u03B3",
+  delta: "\u03B4",
+  epsilon: "\u03B5",
+  zeta: "\u03B6",
+  eta: "\u03B7",
+  theta: "\u03B8",
+  iota: "\u03B9",
+  kappa: "\u03BA",
+  lambda: "\u03BB",
+  mu: "\u03BC",
+  nu: "\u03BD",
+  xi: "\u03BE",
+  omicron: "\u03BF",
+  pi: "\u03C0",
+  rho: "\u03C1",
+  sigmaf: "\u03C2",
+  sigma: "\u03C3",
+  tau: "\u03C4",
+  upsilon: "\u03C5",
+  phi: "\u03C6",
+  chi: "\u03C7",
+  psi: "\u03C8",
+  omega: "\u03C9",
+  thetasym: "\u03D1",
+  upsih: "\u03D2",
+  piv: "\u03D6",
+  ensp: "\u2002",
+  emsp: "\u2003",
+  thinsp: "\u2009",
+  zwnj: "\u200C",
+  zwj: "\u200D",
+  lrm: "\u200E",
+  rlm: "\u200F",
+  ndash: "\u2013",
+  mdash: "\u2014",
+  lsquo: "\u2018",
+  rsquo: "\u2019",
+  sbquo: "\u201A",
+  ldquo: "\u201C",
+  rdquo: "\u201D",
+  bdquo: "\u201E",
+  dagger: "\u2020",
+  Dagger: "\u2021",
+  bull: "\u2022",
+  hellip: "\u2026",
+  permil: "\u2030",
+  prime: "\u2032",
+  Prime: "\u2033",
+  lsaquo: "\u2039",
+  rsaquo: "\u203A",
+  oline: "\u203E",
+  frasl: "\u2044",
+  euro: "\u20AC",
+  image: "\u2111",
+  weierp: "\u2118",
+  real: "\u211C",
+  trade: "\u2122",
+  alefsym: "\u2135",
+  larr: "\u2190",
+  uarr: "\u2191",
+  rarr: "\u2192",
+  darr: "\u2193",
+  harr: "\u2194",
+  crarr: "\u21B5",
+  lArr: "\u21D0",
+  uArr: "\u21D1",
+  rArr: "\u21D2",
+  dArr: "\u21D3",
+  hArr: "\u21D4",
+  forall: "\u2200",
+  part: "\u2202",
+  exist: "\u2203",
+  empty: "\u2205",
+  nabla: "\u2207",
+  isin: "\u2208",
+  notin: "\u2209",
+  ni: "\u220B",
+  prod: "\u220F",
+  sum: "\u2211",
+  minus: "\u2212",
+  lowast: "\u2217",
+  radic: "\u221A",
+  prop: "\u221D",
+  infin: "\u221E",
+  ang: "\u2220",
+  and: "\u2227",
+  or: "\u2228",
+  cap: "\u2229",
+  cup: "\u222A",
+  "int": "\u222B",
+  there4: "\u2234",
+  sim: "\u223C",
+  cong: "\u2245",
+  asymp: "\u2248",
+  ne: "\u2260",
+  equiv: "\u2261",
+  le: "\u2264",
+  ge: "\u2265",
+  sub: "\u2282",
+  sup: "\u2283",
+  nsub: "\u2284",
+  sube: "\u2286",
+  supe: "\u2287",
+  oplus: "\u2295",
+  otimes: "\u2297",
+  perp: "\u22A5",
+  sdot: "\u22C5",
+  lceil: "\u2308",
+  rceil: "\u2309",
+  lfloor: "\u230A",
+  rfloor: "\u230B",
+  lang: "\u2329",
+  rang: "\u232A",
+  loz: "\u25CA",
+  spades: "\u2660",
+  clubs: "\u2663",
+  hearts: "\u2665",
+  diams: "\u2666"
+};
+
+var HEX_NUMBER = /^[\da-fA-F]+$/;
+var DECIMAL_NUMBER = /^\d+$/;
+
+types$1.j_oTag = new TokContext("<tag", false);
+types$1.j_cTag = new TokContext("</tag", false);
+types$1.j_expr = new TokContext("<tag>...</tag>", true, true);
+
+types.jsxName = new TokenType("jsxName");
+types.jsxText = new TokenType("jsxText", { beforeExpr: true });
+types.jsxTagStart = new TokenType("jsxTagStart", { startsExpr: true });
+types.jsxTagEnd = new TokenType("jsxTagEnd");
+
+types.jsxTagStart.updateContext = function () {
+  this.state.context.push(types$1.j_expr); // treat as beginning of JSX expression
+  this.state.context.push(types$1.j_oTag); // start opening tag context
+  this.state.exprAllowed = false;
+};
+
+types.jsxTagEnd.updateContext = function (prevType) {
+  var out = this.state.context.pop();
+  if (out === types$1.j_oTag && prevType === types.slash || out === types$1.j_cTag) {
+    this.state.context.pop();
+    this.state.exprAllowed = this.curContext() === types$1.j_expr;
+  } else {
+    this.state.exprAllowed = true;
+  }
+};
+
+var pp$9 = Parser.prototype;
+
+// Reads inline JSX contents token.
+
+pp$9.jsxReadToken = function () {
+  var out = "";
+  var chunkStart = this.state.pos;
+  for (;;) {
+    if (this.state.pos >= this.input.length) {
+      this.raise(this.state.start, "Unterminated JSX contents");
+    }
+
+    var ch = this.input.charCodeAt(this.state.pos);
+
+    switch (ch) {
+      case 60: // "<"
+      case 123:
+        // "{"
+        if (this.state.pos === this.state.start) {
+          if (ch === 60 && this.state.exprAllowed) {
+            ++this.state.pos;
+            return this.finishToken(types.jsxTagStart);
+          }
+          return this.getTokenFromCode(ch);
+        }
+        out += this.input.slice(chunkStart, this.state.pos);
+        return this.finishToken(types.jsxText, out);
+
+      case 38:
+        // "&"
+        out += this.input.slice(chunkStart, this.state.pos);
+        out += this.jsxReadEntity();
+        chunkStart = this.state.pos;
+        break;
+
+      default:
+        if (isNewLine(ch)) {
+          out += this.input.slice(chunkStart, this.state.pos);
+          out += this.jsxReadNewLine(true);
+          chunkStart = this.state.pos;
+        } else {
+          ++this.state.pos;
+        }
+    }
+  }
+};
+
+pp$9.jsxReadNewLine = function (normalizeCRLF) {
+  var ch = this.input.charCodeAt(this.state.pos);
+  var out = void 0;
+  ++this.state.pos;
+  if (ch === 13 && this.input.charCodeAt(this.state.pos) === 10) {
+    ++this.state.pos;
+    out = normalizeCRLF ? "\n" : "\r\n";
+  } else {
+    out = String.fromCharCode(ch);
+  }
+  ++this.state.curLine;
+  this.state.lineStart = this.state.pos;
+
+  return out;
+};
+
+pp$9.jsxReadString = function (quote) {
+  var out = "";
+  var chunkStart = ++this.state.pos;
+  for (;;) {
+    if (this.state.pos >= this.input.length) {
+      this.raise(this.state.start, "Unterminated string constant");
+    }
+
+    var ch = this.input.charCodeAt(this.state.pos);
+    if (ch === quote) break;
+    if (ch === 38) {
+      // "&"
+      out += this.input.slice(chunkStart, this.state.pos);
+      out += this.jsxReadEntity();
+      chunkStart = this.state.pos;
+    } else if (isNewLine(ch)) {
+      out += this.input.slice(chunkStart, this.state.pos);
+      out += this.jsxReadNewLine(false);
+      chunkStart = this.state.pos;
+    } else {
+      ++this.state.pos;
+    }
+  }
+  out += this.input.slice(chunkStart, this.state.pos++);
+  return this.finishToken(types.string, out);
+};
+
+pp$9.jsxReadEntity = function () {
+  var str = "";
+  var count = 0;
+  var entity = void 0;
+  var ch = this.input[this.state.pos];
+
+  var startPos = ++this.state.pos;
+  while (this.state.pos < this.input.length && count++ < 10) {
+    ch = this.input[this.state.pos++];
+    if (ch === ";") {
+      if (str[0] === "#") {
+        if (str[1] === "x") {
+          str = str.substr(2);
+          if (HEX_NUMBER.test(str)) entity = fromCodePoint$1(parseInt(str, 16));
+        } else {
+          str = str.substr(1);
+          if (DECIMAL_NUMBER.test(str)) entity = fromCodePoint$1(parseInt(str, 10));
+        }
+      } else {
+        entity = XHTMLEntities[str];
+      }
+      break;
+    }
+    str += ch;
+  }
+  if (!entity) {
+    this.state.pos = startPos;
+    return "&";
+  }
+  return entity;
+};
+
+// Read a JSX identifier (valid tag or attribute name).
+//
+// Optimized version since JSX identifiers can"t contain
+// escape characters and so can be read as single slice.
+// Also assumes that first character was already checked
+// by isIdentifierStart in readToken.
+
+pp$9.jsxReadWord = function () {
+  var ch = void 0;
+  var start = this.state.pos;
+  do {
+    ch = this.input.charCodeAt(++this.state.pos);
+  } while (isIdentifierChar(ch) || ch === 45); // "-"
+  return this.finishToken(types.jsxName, this.input.slice(start, this.state.pos));
+};
+
+// Transforms JSX element name to string.
+
+function getQualifiedJSXName(object) {
+  if (object.type === "JSXIdentifier") {
+    return object.name;
+  }
+
+  if (object.type === "JSXNamespacedName") {
+    return object.namespace.name + ":" + object.name.name;
+  }
+
+  if (object.type === "JSXMemberExpression") {
+    return getQualifiedJSXName(object.object) + "." + getQualifiedJSXName(object.property);
+  }
+}
+
+// Parse next token as JSX identifier
+
+pp$9.jsxParseIdentifier = function () {
+  var node = this.startNode();
+  if (this.match(types.jsxName)) {
+    node.name = this.state.value;
+  } else if (this.state.type.keyword) {
+    node.name = this.state.type.keyword;
+  } else {
+    this.unexpected();
+  }
+  this.next();
+  return this.finishNode(node, "JSXIdentifier");
+};
+
+// Parse namespaced identifier.
+
+pp$9.jsxParseNamespacedName = function () {
+  var startPos = this.state.start;
+  var startLoc = this.state.startLoc;
+  var name = this.jsxParseIdentifier();
+  if (!this.eat(types.colon)) return name;
+
+  var node = this.startNodeAt(startPos, startLoc);
+  node.namespace = name;
+  node.name = this.jsxParseIdentifier();
+  return this.finishNode(node, "JSXNamespacedName");
+};
+
+// Parses element name in any form - namespaced, member
+// or single identifier.
+
+pp$9.jsxParseElementName = function () {
+  var startPos = this.state.start;
+  var startLoc = this.state.startLoc;
+  var node = this.jsxParseNamespacedName();
+  while (this.eat(types.dot)) {
+    var newNode = this.startNodeAt(startPos, startLoc);
+    newNode.object = node;
+    newNode.property = this.jsxParseIdentifier();
+    node = this.finishNode(newNode, "JSXMemberExpression");
+  }
+  return node;
+};
+
+// Parses any type of JSX attribute value.
+
+pp$9.jsxParseAttributeValue = function () {
+  var node = void 0;
+  switch (this.state.type) {
+    case types.braceL:
+      node = this.jsxParseExpressionContainer();
+      if (node.expression.type === "JSXEmptyExpression") {
+        this.raise(node.start, "JSX attributes must only be assigned a non-empty expression");
+      } else {
+        return node;
+      }
+
+    case types.jsxTagStart:
+    case types.string:
+      node = this.parseExprAtom();
+      node.extra = null;
+      return node;
+
+    default:
+      this.raise(this.state.start, "JSX value should be either an expression or a quoted JSX text");
+  }
+};
+
+// JSXEmptyExpression is unique type since it doesn't actually parse anything,
+// and so it should start at the end of last read token (left brace) and finish
+// at the beginning of the next one (right brace).
+
+pp$9.jsxParseEmptyExpression = function () {
+  var node = this.startNodeAt(this.state.lastTokEnd, this.state.lastTokEndLoc);
+  return this.finishNodeAt(node, "JSXEmptyExpression", this.state.start, this.state.startLoc);
+};
+
+// Parse JSX spread child
+
+pp$9.jsxParseSpreadChild = function () {
+  var node = this.startNode();
+  this.expect(types.braceL);
+  this.expect(types.ellipsis);
+  node.expression = this.parseExpression();
+  this.expect(types.braceR);
+
+  return this.finishNode(node, "JSXSpreadChild");
+};
+
+// Parses JSX expression enclosed into curly brackets.
+
+
+pp$9.jsxParseExpressionContainer = function () {
+  var node = this.startNode();
+  this.next();
+  if (this.match(types.braceR)) {
+    node.expression = this.jsxParseEmptyExpression();
+  } else {
+    node.expression = this.parseExpression();
+  }
+  this.expect(types.braceR);
+  return this.finishNode(node, "JSXExpressionContainer");
+};
+
+// Parses following JSX attribute name-value pair.
+
+pp$9.jsxParseAttribute = function () {
+  var node = this.startNode();
+  if (this.eat(types.braceL)) {
+    this.expect(types.ellipsis);
+    node.argument = this.parseMaybeAssign();
+    this.expect(types.braceR);
+    return this.finishNode(node, "JSXSpreadAttribute");
+  }
+  node.name = this.jsxParseNamespacedName();
+  node.value = this.eat(types.eq) ? this.jsxParseAttributeValue() : null;
+  return this.finishNode(node, "JSXAttribute");
+};
+
+// Parses JSX opening tag starting after "<".
+
+pp$9.jsxParseOpeningElementAt = function (startPos, startLoc) {
+  var node = this.startNodeAt(startPos, startLoc);
+  node.attributes = [];
+  node.name = this.jsxParseElementName();
+  while (!this.match(types.slash) && !this.match(types.jsxTagEnd)) {
+    node.attributes.push(this.jsxParseAttribute());
+  }
+  node.selfClosing = this.eat(types.slash);
+  this.expect(types.jsxTagEnd);
+  return this.finishNode(node, "JSXOpeningElement");
+};
+
+// Parses JSX closing tag starting after "</".
+
+pp$9.jsxParseClosingElementAt = function (startPos, startLoc) {
+  var node = this.startNodeAt(startPos, startLoc);
+  node.name = this.jsxParseElementName();
+  this.expect(types.jsxTagEnd);
+  return this.finishNode(node, "JSXClosingElement");
+};
+
+// Parses entire JSX element, including it"s opening tag
+// (starting after "<"), attributes, contents and closing tag.
+
+pp$9.jsxParseElementAt = function (startPos, startLoc) {
+  var node = this.startNodeAt(startPos, startLoc);
+  var children = [];
+  var openingElement = this.jsxParseOpeningElementAt(startPos, startLoc);
+  var closingElement = null;
+
+  if (!openingElement.selfClosing) {
+    contents: for (;;) {
+      switch (this.state.type) {
+        case types.jsxTagStart:
+          startPos = this.state.start;startLoc = this.state.startLoc;
+          this.next();
+          if (this.eat(types.slash)) {
+            closingElement = this.jsxParseClosingElementAt(startPos, startLoc);
+            break contents;
+          }
+          children.push(this.jsxParseElementAt(startPos, startLoc));
+          break;
+
+        case types.jsxText:
+          children.push(this.parseExprAtom());
+          break;
+
+        case types.braceL:
+          if (this.lookahead().type === types.ellipsis) {
+            children.push(this.jsxParseSpreadChild());
+          } else {
+            children.push(this.jsxParseExpressionContainer());
+          }
+
+          break;
+
+        // istanbul ignore next - should never happen
+        default:
+          this.unexpected();
+      }
+    }
+
+    if (getQualifiedJSXName(closingElement.name) !== getQualifiedJSXName(openingElement.name)) {
+      this.raise(closingElement.start, "Expected corresponding JSX closing tag for <" + getQualifiedJSXName(openingElement.name) + ">");
+    }
+  }
+
+  node.openingElement = openingElement;
+  node.closingElement = closingElement;
+  node.children = children;
+  if (this.match(types.relational) && this.state.value === "<") {
+    this.raise(this.state.start, "Adjacent JSX elements must be wrapped in an enclosing tag");
+  }
+  return this.finishNode(node, "JSXElement");
+};
+
+// Parses entire JSX element from current position.
+
+pp$9.jsxParseElement = function () {
+  var startPos = this.state.start;
+  var startLoc = this.state.startLoc;
+  this.next();
+  return this.jsxParseElementAt(startPos, startLoc);
+};
+
+var jsxPlugin = function (instance) {
+  instance.extend("parseExprAtom", function (inner) {
+    return function (refShortHandDefaultPos) {
+      if (this.match(types.jsxText)) {
+        var node = this.parseLiteral(this.state.value, "JSXText");
+        // https://github.com/babel/babel/issues/2078
+        node.extra = null;
+        return node;
+      } else if (this.match(types.jsxTagStart)) {
+        return this.jsxParseElement();
+      } else {
+        return inner.call(this, refShortHandDefaultPos);
+      }
+    };
+  });
+
+  instance.extend("readToken", function (inner) {
+    return function (code) {
+      if (this.state.inPropertyName) return inner.call(this, code);
+
+      var context = this.curContext();
+
+      if (context === types$1.j_expr) {
+        return this.jsxReadToken();
+      }
+
+      if (context === types$1.j_oTag || context === types$1.j_cTag) {
+        if (isIdentifierStart(code)) {
+          return this.jsxReadWord();
+        }
+
+        if (code === 62) {
+          ++this.state.pos;
+          return this.finishToken(types.jsxTagEnd);
+        }
+
+        if ((code === 34 || code === 39) && context === types$1.j_oTag) {
+          return this.jsxReadString(code);
+        }
+      }
+
+      if (code === 60 && this.state.exprAllowed) {
+        ++this.state.pos;
+        return this.finishToken(types.jsxTagStart);
+      }
+
+      return inner.call(this, code);
+    };
+  });
+
+  instance.extend("updateContext", function (inner) {
+    return function (prevType) {
+      if (this.match(types.braceL)) {
+        var curContext = this.curContext();
+        if (curContext === types$1.j_oTag) {
+          this.state.context.push(types$1.braceExpression);
+        } else if (curContext === types$1.j_expr) {
+          this.state.context.push(types$1.templateQuasi);
+        } else {
+          inner.call(this, prevType);
+        }
+        this.state.exprAllowed = true;
+      } else if (this.match(types.slash) && prevType === types.jsxTagStart) {
+        this.state.context.length -= 2; // do not consider JSX expr -> JSX open tag -> ... anymore
+        this.state.context.push(types$1.j_cTag); // reconsider as closing tag context
+        this.state.exprAllowed = false;
+      } else {
+        return inner.call(this, prevType);
+      }
+    };
+  });
+};
+
+plugins.estree = estreePlugin;
+plugins.flow = flowPlugin;
+plugins.jsx = jsxPlugin;
+
+function parse(input, options) {
+  return new Parser(options, input).parse();
+}
+
+function parseExpression(input, options) {
+  var parser = new Parser(options, input);
+  if (parser.options.strictMode) {
+    parser.state.strict = true;
+  }
+  return parser.getExpression();
+}
+
+exports.parse = parse;
+exports.parseExpression = parseExpression;
+exports.tokTypes = types;
+
+
+/***/ }),
+/* 99 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// getting tag from 19.1.3.6 Object.prototype.toString()
+var cof = __webpack_require__(61)
+  , TAG = __webpack_require__(3)('toStringTag')
+  // ES3 wrong here
+  , ARG = cof(function(){ return arguments; }()) == 'Arguments';
+
+// fallback for IE11 Script Access Denied error
+var tryGet = function(it, key){
+  try {
+    return it[key];
+  } catch(e){ /* empty */ }
+};
+
+module.exports = function(it){
+  var O, T, B;
+  return it === undefined ? 'Undefined' : it === null ? 'Null'
+    // @@toStringTag case
+    : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
+    // builtinTag case
+    : ARG ? cof(O)
+    // ES3 arguments fallback
+    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
+};
+
+/***/ }),
+/* 100 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+var global         = __webpack_require__(4)
+  , $export        = __webpack_require__(17)
+  , meta           = __webpack_require__(29)
+  , fails          = __webpack_require__(18)
+  , hide           = __webpack_require__(11)
+  , redefineAll    = __webpack_require__(67)
+  , forOf          = __webpack_require__(37)
+  , anInstance     = __webpack_require__(59)
+  , isObject       = __webpack_require__(12)
+  , setToStringTag = __webpack_require__(41)
+  , dP             = __webpack_require__(7).f
+  , each           = __webpack_require__(60)(0)
+  , DESCRIPTORS    = __webpack_require__(6);
+
+module.exports = function(NAME, wrapper, methods, common, IS_MAP, IS_WEAK){
+  var Base  = global[NAME]
+    , C     = Base
+    , ADDER = IS_MAP ? 'set' : 'add'
+    , proto = C && C.prototype
+    , O     = {};
+  if(!DESCRIPTORS || typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function(){
+    new C().entries().next();
+  }))){
+    // create collection constructor
+    C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);
+    redefineAll(C.prototype, methods);
+    meta.NEED = true;
+  } else {
+    C = wrapper(function(target, iterable){
+      anInstance(target, C, NAME, '_c');
+      target._c = new Base;
+      if(iterable != undefined)forOf(iterable, IS_MAP, target[ADDER], target);
+    });
+    each('add,clear,delete,forEach,get,has,set,keys,values,entries,toJSON'.split(','),function(KEY){
+      var IS_ADDER = KEY == 'add' || KEY == 'set';
+      if(KEY in proto && !(IS_WEAK && KEY == 'clear'))hide(C.prototype, KEY, function(a, b){
+        anInstance(this, C, KEY);
+        if(!IS_ADDER && IS_WEAK && !isObject(a))return KEY == 'get' ? undefined : false;
+        var result = this._c[KEY](a === 0 ? 0 : a, b);
+        return IS_ADDER ? this : result;
+      });
+    });
+    if('size' in proto)dP(C.prototype, 'size', {
+      get: function(){
+        return this._c.size;
+      }
+    });
+  }
+
+  setToStringTag(C, NAME);
+
+  O[NAME] = C;
+  $export($export.G + $export.W + $export.F, O);
+
+  if(!IS_WEAK)common.setStrong(C, NAME, IS_MAP);
+
+  return C;
+};
+
+/***/ }),
+/* 101 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var isObject = __webpack_require__(12)
+  , document = __webpack_require__(4).document
+  // in old IE typeof document.createElement is 'object'
+  , is = isObject(document) && isObject(document.createElement);
+module.exports = function(it){
+  return is ? document.createElement(it) : {};
+};
+
+/***/ }),
+/* 102 */
+/***/ (function(module, exports, __webpack_require__) {
+
+module.exports = !__webpack_require__(6) && !__webpack_require__(18)(function(){
+  return Object.defineProperty(__webpack_require__(101)('div'), 'a', {get: function(){ return 7; }}).a != 7;
+});
+
+/***/ }),
+/* 103 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// 7.2.2 IsArray(argument)
+var cof = __webpack_require__(61);
+module.exports = Array.isArray || function isArray(arg){
+  return cof(arg) == 'Array';
+};
+
+/***/ }),
+/* 104 */
+/***/ (function(module, exports) {
+
+module.exports = function(done, value){
+  return {value: value, done: !!done};
+};
+
+/***/ }),
+/* 105 */
+/***/ (function(module, exports, __webpack_require__) {
+
+// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)
+var $keys      = __webpack_require__(106)
+  , hiddenKeys = __webpack_require__(62).concat('length', 'prototype');
+
+exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O){
+  return $keys(O, hiddenKeys);
+};
+
+/***/ }),
+/* 106 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var has          = __webpack_require__(10)
+  , toIObject    = __webpack_require__(19)
+  , arrayIndexOf = __webpack_require__(198)(false)
+  , IE_PROTO     = __webpack_require__(69)('IE_PROTO');
+
+module.exports = function(object, names){
+  var O      = toIObject(object)
+    , i      = 0
+    , result = []
+    , key;
+  for(key in O)if(key != IE_PROTO)has(O, key) && result.push(key);
+  // Don't enum bug & hidden keys
+  while(names.length > i)if(has(O, key = names[i++])){
+    ~arrayIndexOf(result, key) || result.push(key);
+  }
+  return result;
+};
+
+/***/ }),
+/* 107 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var classof   = __webpack_require__(99)
+  , ITERATOR  = __webpack_require__(3)('iterator')
+  , Iterators = __webpack_require__(28);
+module.exports = __webpack_require__(2).getIteratorMethod = function(it){
+  if(it != undefined)return it[ITERATOR]
+    || it['@@iterator']
+    || Iterators[classof(it)];
+};
+
+/***/ }),
+/* 108 */
+/***/ (function(module, exports) {
+
+/*
+  Copyright (C) 2013-2014 Yusuke Suzuki <utatane.tea@gmail.com>
+  Copyright (C) 2014 Ivan Nikulin <ifaaan@gmail.com>
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+(function () {
+    'use strict';
+
+    var ES6Regex, ES5Regex, NON_ASCII_WHITESPACES, IDENTIFIER_START, IDENTIFIER_PART, ch;
+
+    // See `tools/generate-identifier-regex.js`.
+    ES5Regex = {
+        // ECMAScript 5.1/Unicode v7.0.0 NonAsciiIdentifierStart:
+        NonAsciiIdentifierStart: /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B2\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA7AD\uA7B0\uA7B1\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB5F\uAB64\uAB65\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]/,
+        // ECMAScript 5.1/Unicode v7.0.0 NonAsciiIdentifierPart:
+        NonAsciiIdentifierPart: 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uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]/
+    };
+
+    ES6Regex = {
+        // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierStart:
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+        // ECMAScript 6/Unicode v7.0.0 NonAsciiIdentifierPart:
+        NonAsciiIdentifierPart: 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+    };
+
+    function isDecimalDigit(ch) {
+        return 0x30 <= ch && ch <= 0x39;  // 0..9
+    }
+
+    function isHexDigit(ch) {
+        return 0x30 <= ch && ch <= 0x39 ||  // 0..9
+            0x61 <= ch && ch <= 0x66 ||     // a..f
+            0x41 <= ch && ch <= 0x46;       // A..F
+    }
+
+    function isOctalDigit(ch) {
+        return ch >= 0x30 && ch <= 0x37;  // 0..7
+    }
+
+    // 7.2 White Space
+
+    NON_ASCII_WHITESPACES = [
+        0x1680, 0x180E,
+        0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A,
+        0x202F, 0x205F,
+        0x3000,
+        0xFEFF
+    ];
+
+    function isWhiteSpace(ch) {
+        return ch === 0x20 || ch === 0x09 || ch === 0x0B || ch === 0x0C || ch === 0xA0 ||
+            ch >= 0x1680 && NON_ASCII_WHITESPACES.indexOf(ch) >= 0;
+    }
+
+    // 7.3 Line Terminators
+
+    function isLineTerminator(ch) {
+        return ch === 0x0A || ch === 0x0D || ch === 0x2028 || ch === 0x2029;
+    }
+
+    // 7.6 Identifier Names and Identifiers
+
+    function fromCodePoint(cp) {
+        if (cp <= 0xFFFF) { return String.fromCharCode(cp); }
+        var cu1 = String.fromCharCode(Math.floor((cp - 0x10000) / 0x400) + 0xD800);
+        var cu2 = String.fromCharCode(((cp - 0x10000) % 0x400) + 0xDC00);
+        return cu1 + cu2;
+    }
+
+    IDENTIFIER_START = new Array(0x80);
+    for(ch = 0; ch < 0x80; ++ch) {
+        IDENTIFIER_START[ch] =
+            ch >= 0x61 && ch <= 0x7A ||  // a..z
+            ch >= 0x41 && ch <= 0x5A ||  // A..Z
+            ch === 0x24 || ch === 0x5F;  // $ (dollar) and _ (underscore)
+    }
+
+    IDENTIFIER_PART = new Array(0x80);
+    for(ch = 0; ch < 0x80; ++ch) {
+        IDENTIFIER_PART[ch] =
+            ch >= 0x61 && ch <= 0x7A ||  // a..z
+            ch >= 0x41 && ch <= 0x5A ||  // A..Z
+            ch >= 0x30 && ch <= 0x39 ||  // 0..9
+            ch === 0x24 || ch === 0x5F;  // $ (dollar) and _ (underscore)
+    }
+
+    function isIdentifierStartES5(ch) {
+        return ch < 0x80 ? IDENTIFIER_START[ch] : ES5Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch));
+    }
+
+    function isIdentifierPartES5(ch) {
+        return ch < 0x80 ? IDENTIFIER_PART[ch] : ES5Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch));
+    }
+
+    function isIdentifierStartES6(ch) {
+        return ch < 0x80 ? IDENTIFIER_START[ch] : ES6Regex.NonAsciiIdentifierStart.test(fromCodePoint(ch));
+    }
+
+    function isIdentifierPartES6(ch) {
+        return ch < 0x80 ? IDENTIFIER_PART[ch] : ES6Regex.NonAsciiIdentifierPart.test(fromCodePoint(ch));
+    }
+
+    module.exports = {
+        isDecimalDigit: isDecimalDigit,
+        isHexDigit: isHexDigit,
+        isOctalDigit: isOctalDigit,
+        isWhiteSpace: isWhiteSpace,
+        isLineTerminator: isLineTerminator,
+        isIdentifierStartES5: isIdentifierStartES5,
+        isIdentifierPartES5: isIdentifierPartES5,
+        isIdentifierStartES6: isIdentifierStartES6,
+        isIdentifierPartES6: isIdentifierPartES6
+    };
+}());
+/* vim: set sw=4 ts=4 et tw=80 : */
+
+
+/***/ }),
+/* 109 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var getNative = __webpack_require__(20),
+    root = __webpack_require__(5);
+
+/* Built-in method references that are verified to be native. */
+var Set = getNative(root, 'Set');
+
+module.exports = Set;
+
+
+/***/ }),
+/* 110 */
+/***/ (function(module, exports) {
+
+/**
+ * A faster alternative to `Function#apply`, this function invokes `func`
+ * with the `this` binding of `thisArg` and the arguments of `args`.
+ *
+ * @private
+ * @param {Function} func The function to invoke.
+ * @param {*} thisArg The `this` binding of `func`.
+ * @param {Array} args The arguments to invoke `func` with.
+ * @returns {*} Returns the result of `func`.
+ */
+function apply(func, thisArg, args) {
+  switch (args.length) {
+    case 0: return func.call(thisArg);
+    case 1: return func.call(thisArg, args[0]);
+    case 2: return func.call(thisArg, args[0], args[1]);
+    case 3: return func.call(thisArg, args[0], args[1], args[2]);
+  }
+  return func.apply(thisArg, args);
+}
+
+module.exports = apply;
+
+
+/***/ }),
+/* 111 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseTimes = __webpack_require__(268),
+    isArguments = __webpack_require__(132),
+    isArray = __webpack_require__(14),
+    isBuffer = __webpack_require__(133),
+    isIndex = __webpack_require__(86),
+    isTypedArray = __webpack_require__(340);
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
+/**
+ * Creates an array of the enumerable property names of the array-like `value`.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @param {boolean} inherited Specify returning inherited property names.
+ * @returns {Array} Returns the array of property names.
+ */
+function arrayLikeKeys(value, inherited) {
+  var isArr = isArray(value),
+      isArg = !isArr && isArguments(value),
+      isBuff = !isArr && !isArg && isBuffer(value),
+      isType = !isArr && !isArg && !isBuff && isTypedArray(value),
+      skipIndexes = isArr || isArg || isBuff || isType,
+      result = skipIndexes ? baseTimes(value.length, String) : [],
+      length = result.length;
+
+  for (var key in value) {
+    if ((inherited || hasOwnProperty.call(value, key)) &&
+        !(skipIndexes && (
+           // Safari 9 has enumerable `arguments.length` in strict mode.
+           key == 'length' ||
+           // Node.js 0.10 has enumerable non-index properties on buffers.
+           (isBuff && (key == 'offset' || key == 'parent')) ||
+           // PhantomJS 2 has enumerable non-index properties on typed arrays.
+           (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
+           // Skip index properties.
+           isIndex(key, length)
+        ))) {
+      result.push(key);
+    }
+  }
+  return result;
+}
+
+module.exports = arrayLikeKeys;
+
+
+/***/ }),
+/* 112 */
+/***/ (function(module, exports) {
+
+/**
+ * A specialized version of `_.map` for arrays without support for iteratee
+ * shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns the new mapped array.
+ */
+function arrayMap(array, iteratee) {
+  var index = -1,
+      length = array == null ? 0 : array.length,
+      result = Array(length);
+
+  while (++index < length) {
+    result[index] = iteratee(array[index], index, array);
+  }
+  return result;
+}
+
+module.exports = arrayMap;
+
+
+/***/ }),
+/* 113 */
+/***/ (function(module, exports) {
+
+/**
+ * Appends the elements of `values` to `array`.
+ *
+ * @private
+ * @param {Array} array The array to modify.
+ * @param {Array} values The values to append.
+ * @returns {Array} Returns `array`.
+ */
+function arrayPush(array, values) {
+  var index = -1,
+      length = values.length,
+      offset = array.length;
+
+  while (++index < length) {
+    array[offset + index] = values[index];
+  }
+  return array;
+}
+
+module.exports = arrayPush;
+
+
+/***/ }),
+/* 114 */
+/***/ (function(module, exports) {
+
+/**
+ * A specialized version of `_.reduce` for arrays without support for
+ * iteratee shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @param {*} [accumulator] The initial value.
+ * @param {boolean} [initAccum] Specify using the first element of `array` as
+ *  the initial value.
+ * @returns {*} Returns the accumulated value.
+ */
+function arrayReduce(array, iteratee, accumulator, initAccum) {
+  var index = -1,
+      length = array == null ? 0 : array.length;
+
+  if (initAccum && length) {
+    accumulator = array[++index];
+  }
+  while (++index < length) {
+    accumulator = iteratee(accumulator, array[index], index, array);
+  }
+  return accumulator;
+}
+
+module.exports = arrayReduce;
+
+
+/***/ }),
+/* 115 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var defineProperty = __webpack_require__(122);
+
+/**
+ * The base implementation of `assignValue` and `assignMergeValue` without
+ * value checks.
+ *
+ * @private
+ * @param {Object} object The object to modify.
+ * @param {string} key The key of the property to assign.
+ * @param {*} value The value to assign.
+ */
+function baseAssignValue(object, key, value) {
+  if (key == '__proto__' && defineProperty) {
+    defineProperty(object, key, {
+      'configurable': true,
+      'enumerable': true,
+      'value': value,
+      'writable': true
+    });
+  } else {
+    object[key] = value;
+  }
+}
+
+module.exports = baseAssignValue;
+
+
+/***/ }),
+/* 116 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var Stack = __webpack_require__(245),
+    arrayEach = __webpack_require__(250),
+    assignValue = __webpack_require__(82),
+    baseAssign = __webpack_require__(254),
+    baseAssignIn = __webpack_require__(255),
+    cloneBuffer = __webpack_require__(274),
+    copyArray = __webpack_require__(281),
+    copySymbols = __webpack_require__(282),
+    copySymbolsIn = __webpack_require__(283),
+    getAllKeys = __webpack_require__(287),
+    getAllKeysIn = __webpack_require__(288),
+    getTag = __webpack_require__(290),
+    initCloneArray = __webpack_require__(298),
+    initCloneByTag = __webpack_require__(299),
+    initCloneObject = __webpack_require__(300),
+    isArray = __webpack_require__(14),
+    isBuffer = __webpack_require__(133),
+    isObject = __webpack_require__(21),
+    keys = __webpack_require__(31);
+
+/** Used to compose bitmasks for cloning. */
+var CLONE_DEEP_FLAG = 1,
+    CLONE_FLAT_FLAG = 2,
+    CLONE_SYMBOLS_FLAG = 4;
+
+/** `Object#toString` result references. */
+var argsTag = '[object Arguments]',
+    arrayTag = '[object Array]',
+    boolTag = '[object Boolean]',
+    dateTag = '[object Date]',
+    errorTag = '[object Error]',
+    funcTag = '[object Function]',
+    genTag = '[object GeneratorFunction]',
+    mapTag = '[object Map]',
+    numberTag = '[object Number]',
+    objectTag = '[object Object]',
+    regexpTag = '[object RegExp]',
+    setTag = '[object Set]',
+    stringTag = '[object String]',
+    symbolTag = '[object Symbol]',
+    weakMapTag = '[object WeakMap]';
+
+var arrayBufferTag = '[object ArrayBuffer]',
+    dataViewTag = '[object DataView]',
+    float32Tag = '[object Float32Array]',
+    float64Tag = '[object Float64Array]',
+    int8Tag = '[object Int8Array]',
+    int16Tag = '[object Int16Array]',
+    int32Tag = '[object Int32Array]',
+    uint8Tag = '[object Uint8Array]',
+    uint8ClampedTag = '[object Uint8ClampedArray]',
+    uint16Tag = '[object Uint16Array]',
+    uint32Tag = '[object Uint32Array]';
+
+/** Used to identify `toStringTag` values supported by `_.clone`. */
+var cloneableTags = {};
+cloneableTags[argsTag] = cloneableTags[arrayTag] =
+cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
+cloneableTags[boolTag] = cloneableTags[dateTag] =
+cloneableTags[float32Tag] = cloneableTags[float64Tag] =
+cloneableTags[int8Tag] = cloneableTags[int16Tag] =
+cloneableTags[int32Tag] = cloneableTags[mapTag] =
+cloneableTags[numberTag] = cloneableTags[objectTag] =
+cloneableTags[regexpTag] = cloneableTags[setTag] =
+cloneableTags[stringTag] = cloneableTags[symbolTag] =
+cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
+cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
+cloneableTags[errorTag] = cloneableTags[funcTag] =
+cloneableTags[weakMapTag] = false;
+
+/**
+ * The base implementation of `_.clone` and `_.cloneDeep` which tracks
+ * traversed objects.
+ *
+ * @private
+ * @param {*} value The value to clone.
+ * @param {boolean} bitmask The bitmask flags.
+ *  1 - Deep clone
+ *  2 - Flatten inherited properties
+ *  4 - Clone symbols
+ * @param {Function} [customizer] The function to customize cloning.
+ * @param {string} [key] The key of `value`.
+ * @param {Object} [object] The parent object of `value`.
+ * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
+ * @returns {*} Returns the cloned value.
+ */
+function baseClone(value, bitmask, customizer, key, object, stack) {
+  var result,
+      isDeep = bitmask & CLONE_DEEP_FLAG,
+      isFlat = bitmask & CLONE_FLAT_FLAG,
+      isFull = bitmask & CLONE_SYMBOLS_FLAG;
+
+  if (customizer) {
+    result = object ? customizer(value, key, object, stack) : customizer(value);
+  }
+  if (result !== undefined) {
+    return result;
+  }
+  if (!isObject(value)) {
+    return value;
+  }
+  var isArr = isArray(value);
+  if (isArr) {
+    result = initCloneArray(value);
+    if (!isDeep) {
+      return copyArray(value, result);
+    }
+  } else {
+    var tag = getTag(value),
+        isFunc = tag == funcTag || tag == genTag;
+
+    if (isBuffer(value)) {
+      return cloneBuffer(value, isDeep);
+    }
+    if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
+      result = (isFlat || isFunc) ? {} : initCloneObject(value);
+      if (!isDeep) {
+        return isFlat
+          ? copySymbolsIn(value, baseAssignIn(result, value))
+          : copySymbols(value, baseAssign(result, value));
+      }
+    } else {
+      if (!cloneableTags[tag]) {
+        return object ? value : {};
+      }
+      result = initCloneByTag(value, tag, baseClone, isDeep);
+    }
+  }
+  // Check for circular references and return its corresponding clone.
+  stack || (stack = new Stack);
+  var stacked = stack.get(value);
+  if (stacked) {
+    return stacked;
+  }
+  stack.set(value, result);
+
+  var keysFunc = isFull
+    ? (isFlat ? getAllKeysIn : getAllKeys)
+    : (isFlat ? keysIn : keys);
+
+  var props = isArr ? undefined : keysFunc(value);
+  arrayEach(props || value, function(subValue, key) {
+    if (props) {
+      key = subValue;
+      subValue = value[key];
+    }
+    // Recursively populate clone (susceptible to call stack limits).
+    assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));
+  });
+  return result;
+}
+
+module.exports = baseClone;
+
+
+/***/ }),
+/* 117 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var arrayPush = __webpack_require__(113),
+    isArray = __webpack_require__(14);
+
+/**
+ * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
+ * `keysFunc` and `symbolsFunc` to get the enumerable property names and
+ * symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {Function} keysFunc The function to get the keys of `object`.
+ * @param {Function} symbolsFunc The function to get the symbols of `object`.
+ * @returns {Array} Returns the array of property names and symbols.
+ */
+function baseGetAllKeys(object, keysFunc, symbolsFunc) {
+  var result = keysFunc(object);
+  return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
+}
+
+module.exports = baseGetAllKeys;
+
+
+/***/ }),
+/* 118 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseFindIndex = __webpack_require__(257),
+    baseIsNaN = __webpack_require__(260),
+    strictIndexOf = __webpack_require__(329);
+
+/**
+ * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {*} value The value to search for.
+ * @param {number} fromIndex The index to search from.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ */
+function baseIndexOf(array, value, fromIndex) {
+  return value === value
+    ? strictIndexOf(array, value, fromIndex)
+    : baseFindIndex(array, baseIsNaN, fromIndex);
+}
+
+module.exports = baseIndexOf;
+
+
+/***/ }),
+/* 119 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var identity = __webpack_require__(131),
+    overRest = __webpack_require__(319),
+    setToString = __webpack_require__(322);
+
+/**
+ * The base implementation of `_.rest` which doesn't validate or coerce arguments.
+ *
+ * @private
+ * @param {Function} func The function to apply a rest parameter to.
+ * @param {number} [start=func.length-1] The start position of the rest parameter.
+ * @returns {Function} Returns the new function.
+ */
+function baseRest(func, start) {
+  return setToString(overRest(func, start, identity), func + '');
+}
+
+module.exports = baseRest;
+
+
+/***/ }),
+/* 120 */
+/***/ (function(module, exports) {
+
+/**
+ * The base implementation of `_.unary` without support for storing metadata.
+ *
+ * @private
+ * @param {Function} func The function to cap arguments for.
+ * @returns {Function} Returns the new capped function.
+ */
+function baseUnary(func) {
+  return function(value) {
+    return func(value);
+  };
+}
+
+module.exports = baseUnary;
+
+
+/***/ }),
+/* 121 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseRest = __webpack_require__(119),
+    isIterateeCall = __webpack_require__(125);
+
+/**
+ * Creates a function like `_.assign`.
+ *
+ * @private
+ * @param {Function} assigner The function to assign values.
+ * @returns {Function} Returns the new assigner function.
+ */
+function createAssigner(assigner) {
+  return baseRest(function(object, sources) {
+    var index = -1,
+        length = sources.length,
+        customizer = length > 1 ? sources[length - 1] : undefined,
+        guard = length > 2 ? sources[2] : undefined;
+
+    customizer = (assigner.length > 3 && typeof customizer == 'function')
+      ? (length--, customizer)
+      : undefined;
+
+    if (guard && isIterateeCall(sources[0], sources[1], guard)) {
+      customizer = length < 3 ? undefined : customizer;
+      length = 1;
+    }
+    object = Object(object);
+    while (++index < length) {
+      var source = sources[index];
+      if (source) {
+        assigner(object, source, index, customizer);
+      }
+    }
+    return object;
+  });
+}
+
+module.exports = createAssigner;
+
+
+/***/ }),
+/* 122 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var getNative = __webpack_require__(20);
+
+var defineProperty = (function() {
+  try {
+    var func = getNative(Object, 'defineProperty');
+    func({}, '', {});
+    return func;
+  } catch (e) {}
+}());
+
+module.exports = defineProperty;
+
+
+/***/ }),
+/* 123 */
+/***/ (function(module, exports, __webpack_require__) {
+
+/* WEBPACK VAR INJECTION */(function(global) {/** Detect free variable `global` from Node.js. */
+var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
+
+module.exports = freeGlobal;
+
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(53)))
+
+/***/ }),
+/* 124 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var arrayPush = __webpack_require__(113),
+    getPrototype = __webpack_require__(84),
+    getSymbols = __webpack_require__(85),
+    stubArray = __webpack_require__(135);
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeGetSymbols = Object.getOwnPropertySymbols;
+
+/**
+ * Creates an array of the own and inherited enumerable symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of symbols.
+ */
+var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {
+  var result = [];
+  while (object) {
+    arrayPush(result, getSymbols(object));
+    object = getPrototype(object);
+  }
+  return result;
+};
+
+module.exports = getSymbolsIn;
+
+
+/***/ }),
+/* 125 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var eq = __webpack_require__(51),
+    isArrayLike = __webpack_require__(30),
+    isIndex = __webpack_require__(86),
+    isObject = __webpack_require__(21);
+
+/**
+ * Checks if the given arguments are from an iteratee call.
+ *
+ * @private
+ * @param {*} value The potential iteratee value argument.
+ * @param {*} index The potential iteratee index or key argument.
+ * @param {*} object The potential iteratee object argument.
+ * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
+ *  else `false`.
+ */
+function isIterateeCall(value, index, object) {
+  if (!isObject(object)) {
+    return false;
+  }
+  var type = typeof index;
+  if (type == 'number'
+        ? (isArrayLike(object) && isIndex(index, object.length))
+        : (type == 'string' && index in object)
+      ) {
+    return eq(object[index], value);
+  }
+  return false;
+}
+
+module.exports = isIterateeCall;
+
+
+/***/ }),
+/* 126 */
+/***/ (function(module, exports, __webpack_require__) {
+
+/* WEBPACK VAR INJECTION */(function(module) {var freeGlobal = __webpack_require__(123);
+
+/** Detect free variable `exports`. */
+var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
+
+/** Detect free variable `module`. */
+var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
+
+/** Detect the popular CommonJS extension `module.exports`. */
+var moduleExports = freeModule && freeModule.exports === freeExports;
+
+/** Detect free variable `process` from Node.js. */
+var freeProcess = moduleExports && freeGlobal.process;
+
+/** Used to access faster Node.js helpers. */
+var nodeUtil = (function() {
+  try {
+    return freeProcess && freeProcess.binding && freeProcess.binding('util');
+  } catch (e) {}
+}());
+
+module.exports = nodeUtil;
+
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(54)(module)))
+
+/***/ }),
+/* 127 */
+/***/ (function(module, exports) {
+
+/**
+ * Creates a unary function that invokes `func` with its argument transformed.
+ *
+ * @private
+ * @param {Function} func The function to wrap.
+ * @param {Function} transform The argument transform.
+ * @returns {Function} Returns the new function.
+ */
+function overArg(func, transform) {
+  return function(arg) {
+    return func(transform(arg));
+  };
+}
+
+module.exports = overArg;
+
+
+/***/ }),
+/* 128 */
+/***/ (function(module, exports) {
+
+/** Used for built-in method references. */
+var funcProto = Function.prototype;
+
+/** Used to resolve the decompiled source of functions. */
+var funcToString = funcProto.toString;
+
+/**
+ * Converts `func` to its source code.
+ *
+ * @private
+ * @param {Function} func The function to convert.
+ * @returns {string} Returns the source code.
+ */
+function toSource(func) {
+  if (func != null) {
+    try {
+      return funcToString.call(func);
+    } catch (e) {}
+    try {
+      return (func + '');
+    } catch (e) {}
+  }
+  return '';
+}
+
+module.exports = toSource;
+
+
+/***/ }),
+/* 129 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var assignValue = __webpack_require__(82),
+    copyObject = __webpack_require__(24),
+    createAssigner = __webpack_require__(121),
+    isArrayLike = __webpack_require__(30),
+    isPrototype = __webpack_require__(49),
+    keys = __webpack_require__(31);
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
+/**
+ * Assigns own enumerable string keyed properties of source objects to the
+ * destination object. Source objects are applied from left to right.
+ * Subsequent sources overwrite property assignments of previous sources.
+ *
+ * **Note:** This method mutates `object` and is loosely based on
+ * [`Object.assign`](https://mdn.io/Object/assign).
+ *
+ * @static
+ * @memberOf _
+ * @since 0.10.0
+ * @category Object
+ * @param {Object} object The destination object.
+ * @param {...Object} [sources] The source objects.
+ * @returns {Object} Returns `object`.
+ * @see _.assignIn
+ * @example
+ *
+ * function Foo() {
+ *   this.a = 1;
+ * }
+ *
+ * function Bar() {
+ *   this.c = 3;
+ * }
+ *
+ * Foo.prototype.b = 2;
+ * Bar.prototype.d = 4;
+ *
+ * _.assign({ 'a': 0 }, new Foo, new Bar);
+ * // => { 'a': 1, 'c': 3 }
+ */
+var assign = createAssigner(function(object, source) {
+  if (isPrototype(source) || isArrayLike(source)) {
+    copyObject(source, keys(source), object);
+    return;
+  }
+  for (var key in source) {
+    if (hasOwnProperty.call(source, key)) {
+      assignValue(object, key, source[key]);
+    }
+  }
+});
+
+module.exports = assign;
+
+
+/***/ }),
+/* 130 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseClone = __webpack_require__(116);
+
+/** Used to compose bitmasks for cloning. */
+var CLONE_SYMBOLS_FLAG = 4;
+
+/**
+ * Creates a shallow clone of `value`.
+ *
+ * **Note:** This method is loosely based on the
+ * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
+ * and supports cloning arrays, array buffers, booleans, date objects, maps,
+ * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
+ * arrays. The own enumerable properties of `arguments` objects are cloned
+ * as plain objects. An empty object is returned for uncloneable values such
+ * as error objects, functions, DOM nodes, and WeakMaps.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to clone.
+ * @returns {*} Returns the cloned value.
+ * @see _.cloneDeep
+ * @example
+ *
+ * var objects = [{ 'a': 1 }, { 'b': 2 }];
+ *
+ * var shallow = _.clone(objects);
+ * console.log(shallow[0] === objects[0]);
+ * // => true
+ */
+function clone(value) {
+  return baseClone(value, CLONE_SYMBOLS_FLAG);
+}
+
+module.exports = clone;
+
+
+/***/ }),
+/* 131 */
+/***/ (function(module, exports) {
+
+/**
+ * This method returns the first argument it receives.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Util
+ * @param {*} value Any value.
+ * @returns {*} Returns `value`.
+ * @example
+ *
+ * var object = { 'a': 1 };
+ *
+ * console.log(_.identity(object) === object);
+ * // => true
+ */
+function identity(value) {
+  return value;
+}
+
+module.exports = identity;
+
+
+/***/ }),
+/* 132 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseIsArguments = __webpack_require__(259),
+    isObjectLike = __webpack_require__(22);
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
+/** Built-in value references. */
+var propertyIsEnumerable = objectProto.propertyIsEnumerable;
+
+/**
+ * Checks if `value` is likely an `arguments` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an `arguments` object,
+ *  else `false`.
+ * @example
+ *
+ * _.isArguments(function() { return arguments; }());
+ * // => true
+ *
+ * _.isArguments([1, 2, 3]);
+ * // => false
+ */
+var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
+  return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
+    !propertyIsEnumerable.call(value, 'callee');
+};
+
+module.exports = isArguments;
+
+
+/***/ }),
+/* 133 */
+/***/ (function(module, exports, __webpack_require__) {
+
+/* WEBPACK VAR INJECTION */(function(module) {var root = __webpack_require__(5),
+    stubFalse = __webpack_require__(344);
+
+/** Detect free variable `exports`. */
+var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
+
+/** Detect free variable `module`. */
+var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
+
+/** Detect the popular CommonJS extension `module.exports`. */
+var moduleExports = freeModule && freeModule.exports === freeExports;
+
+/** Built-in value references. */
+var Buffer = moduleExports ? root.Buffer : undefined;
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined;
+
+/**
+ * Checks if `value` is a buffer.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.3.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
+ * @example
+ *
+ * _.isBuffer(new Buffer(2));
+ * // => true
+ *
+ * _.isBuffer(new Uint8Array(2));
+ * // => false
+ */
+var isBuffer = nativeIsBuffer || stubFalse;
+
+module.exports = isBuffer;
+
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(54)(module)))
+
+/***/ }),
+/* 134 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseGetTag = __webpack_require__(13),
+    isObject = __webpack_require__(21);
+
+/** `Object#toString` result references. */
+var asyncTag = '[object AsyncFunction]',
+    funcTag = '[object Function]',
+    genTag = '[object GeneratorFunction]',
+    proxyTag = '[object Proxy]';
+
+/**
+ * Checks if `value` is classified as a `Function` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a function, else `false`.
+ * @example
+ *
+ * _.isFunction(_);
+ * // => true
+ *
+ * _.isFunction(/abc/);
+ * // => false
+ */
+function isFunction(value) {
+  if (!isObject(value)) {
+    return false;
+  }
+  // The use of `Object#toString` avoids issues with the `typeof` operator
+  // in Safari 9 which returns 'object' for typed arrays and other constructors.
+  var tag = baseGetTag(value);
+  return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
+}
+
+module.exports = isFunction;
+
+
+/***/ }),
+/* 135 */
+/***/ (function(module, exports) {
+
+/**
+ * This method returns a new empty array.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.13.0
+ * @category Util
+ * @returns {Array} Returns the new empty array.
+ * @example
+ *
+ * var arrays = _.times(2, _.stubArray);
+ *
+ * console.log(arrays);
+ * // => [[], []]
+ *
+ * console.log(arrays[0] === arrays[1]);
+ * // => false
+ */
+function stubArray() {
+  return [];
+}
+
+module.exports = stubArray;
+
+
+/***/ }),
+/* 136 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var toFinite = __webpack_require__(345);
+
+/**
+ * Converts `value` to an integer.
+ *
+ * **Note:** This method is loosely based on
+ * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to convert.
+ * @returns {number} Returns the converted integer.
+ * @example
+ *
+ * _.toInteger(3.2);
+ * // => 3
+ *
+ * _.toInteger(Number.MIN_VALUE);
+ * // => 0
+ *
+ * _.toInteger(Infinity);
+ * // => 1.7976931348623157e+308
+ *
+ * _.toInteger('3.2');
+ * // => 3
+ */
+function toInteger(value) {
+  var result = toFinite(value),
+      remainder = result % 1;
+
+  return result === result ? (remainder ? result - remainder : result) : 0;
+}
+
+module.exports = toInteger;
+
+
+/***/ }),
+/* 137 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseToString = __webpack_require__(269);
+
+/**
+ * Converts `value` to a string. An empty string is returned for `null`
+ * and `undefined` values. The sign of `-0` is preserved.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to convert.
+ * @returns {string} Returns the converted string.
+ * @example
+ *
+ * _.toString(null);
+ * // => ''
+ *
+ * _.toString(-0);
+ * // => '-0'
+ *
+ * _.toString([1, 2, 3]);
+ * // => '1,2,3'
+ */
+function toString(value) {
+  return value == null ? '' : baseToString(value);
+}
+
+module.exports = toString;
+
+
+/***/ }),
+/* 138 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+module.exports = function (babel) {
+    var t = babel.types;
+
+
+    return {
+        visitor: {
+            BlockStatement: function BlockStatement(path) {
+                var threadInterrupted = t.callExpression(t.memberExpression(t.identifier('SlingSandbox'), t.identifier('checkInterrupted')), []);
+
+                path.unshiftContainer('body', t.expressionStatement(threadInterrupted));
+            }
+        }
+    };
+};
+
+/***/ }),
+/* 139 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+exports.__esModule = true;
+
+var _getIterator2 = __webpack_require__(1);
+
+var _getIterator3 = _interopRequireDefault(_getIterator2);
+
+exports.default = function (_ref) {
+  var t = _ref.types;
+
+  var JSX_ANNOTATION_REGEX = /\*?\s*@jsx\s+([^\s]+)/;
+
+  var visitor = (0, _babelHelperBuilderReactJsx2.default)({
+    pre: function pre(state) {
+      var tagName = state.tagName;
+      var args = state.args;
+      if (t.react.isCompatTag(tagName)) {
+        args.push(t.stringLiteral(tagName));
+      } else {
+        args.push(state.tagExpr);
+      }
+    },
+    post: function post(state, pass) {
+      state.callee = pass.get("jsxIdentifier")();
+    }
+  });
+
+  visitor.Program = function (path, state) {
+    var file = state.file;
+
+    var id = state.opts.pragma || "React.createElement";
+
+    for (var _iterator = file.ast.comments, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) {
+      var _ref2;
+
+      if (_isArray) {
+        if (_i >= _iterator.length) break;
+        _ref2 = _iterator[_i++];
+      } else {
+        _i = _iterator.next();
+        if (_i.done) break;
+        _ref2 = _i.value;
+      }
+
+      var comment = _ref2;
+
+      var matches = JSX_ANNOTATION_REGEX.exec(comment.value);
+      if (matches) {
+        id = matches[1];
+        if (id === "React.DOM") {
+          throw file.buildCodeFrameError(comment, "The @jsx React.DOM pragma has been deprecated as of React 0.12");
+        } else {
+          break;
+        }
+      }
+    }
+
+    state.set("jsxIdentifier", function () {
+      return id.split(".").map(function (name) {
+        return t.identifier(name);
+      }).reduce(function (object, property) {
+        return t.memberExpression(object, property);
+      });
+    });
+  };
+
+  return {
+    inherits: _babelPluginSyntaxJsx2.default,
+    visitor: visitor
+  };
+};
+
+var _babelPluginSyntaxJsx = __webpack_require__(146);
+
+var _babelPluginSyntaxJsx2 = _interopRequireDefault(_babelPluginSyntaxJsx);
+
+var _babelHelperBuilderReactJsx = __webpack_require__(144);
+
+var _babelHelperBuilderReactJsx2 = _interopRequireDefault(_babelHelperBuilderReactJsx);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+module.exports = exports["default"];
+
+/***/ }),
+/* 140 */
+/***/ (function(module, exports, __webpack_require__) {
+
+/* WEBPACK VAR INJECTION */(function(Buffer) {(function webpackUniversalModuleDefinition(root, factory) {
+	if(true)
+		module.exports = factory();
+	else if(typeof define === 'function' && define.amd)
+		define([], factory);
+	else if(typeof exports === 'object')
+		exports["Babel"] = factory();
+	else
+		root["Babel"] = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId])
+/******/ 			return installedModules[moduleId].exports;
+
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			exports: {},
+/******/ 			id: moduleId,
+/******/ 			loaded: false
+/******/ 		};
+
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+
+/******/ 		// Flag the module as loaded
+/******/ 		module.loaded = true;
+
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+
+
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(0);
+/******/ })
+/************************************************************************/
+/******/ ((function(modules) {
+	// Check all modules for deduplicated modules
+	for(var i in modules) {
+		if(Object.prototype.hasOwnProperty.call(modules, i)) {
+			switch(typeof modules[i]) {
+			case "function": break;
+			case "object":
+				// Module can be created from a template
+				modules[i] = (function(_m) {
+					var args = _m.slice(1), fn = modules[_m[0]];
+					return function (a,b,c) {
+						fn.apply(this, [a,b,c].concat(args));
+					};
+				}(modules[i]));
+				break;
+			default:
+				// Module is a copy of another module
+				modules[i] = modules[modules[i]];
+				break;
+			}
+		}
+	}
+	return modules;
+}([
+/* 0 */
+/***/ function(module, exports, __webpack_require__) {
+
+	'use strict';
+
+	Object.defineProperty(exports, "__esModule", {
+	  value: true
+	});
+	exports.version = exports.availablePresets = exports.availablePlugins = undefined;
+
+	var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
+
+	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+	exports.transform = transform;
+	exports.transformFromAst = transformFromAst;
+	exports.registerPlugin = registerPlugin;
+	exports.registerPlugins = registerPlugins;
+	exports.registerPreset = registerPreset;
+	exports.registerPresets = registerPresets;
+	exports.disableScriptTags = disableScriptTags;
+
+	var _babelCore = __webpack_require__(287);
+
+	var Babel = _interopRequireWildcard(_babelCore);
+
+	var _transformScriptTags = __webpack_require__(617);
+
+	function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+	var isArray = Array.isArray || function (arg) {
+	  return Object.prototype.toString.call(arg) === '[object Array]';
+	};
+
+	/**

+	 * Loads the given name (or [name, options] pair) from the given table object

+	 * holding the available presets or plugins.

+	 *

+	 * Returns undefined if the preset or plugin is not available; passes through

+	 * name unmodified if it (or the first element of the pair) is not a string.

+	 */
+	function loadBuiltin(builtinTable, name) {
+	  if (isArray(name) && typeof name[0] === 'string') {
+	    if (builtinTable.hasOwnProperty(name[0])) {
+	      return [builtinTable[name[0]]].concat(name.slice(1));
+	    }
+	    return;
+	  } else if (typeof name === 'string') {
+	    return builtinTable[name];
+	  }
+	  // Could be an actual preset/plugin module
+	  return name;
+	}
+
+	/**

+	 * Parses plugin names and presets from the specified options.

+	 */
+	function processOptions(options) {
+	  // Parse preset names
+	  var presets = (options.presets || []).map(function (presetName) {
+	    var preset = loadBuiltin(availablePresets, presetName);
+
+	    if (preset) {
+	      // workaround for babel issue
+	      // at some point, babel copies the preset, losing the non-enumerable
+	      // buildPreset key; convert it into an enumerable key.
+	      if (isArray(preset) && _typeof(preset[0]) === 'object' && preset[0].hasOwnProperty('buildPreset')) {
+	        preset[0] = _extends({}, preset[0], { buildPreset: preset[0].buildPreset });
+	      }
+	    } else {
+	      throw new Error('Invalid preset specified in Babel options: "' + presetName + '"');
+	    }
+	    return preset;
+	  });
+
+	  // Parse plugin names
+	  var plugins = (options.plugins || []).map(function (pluginName) {
+	    var plugin = loadBuiltin(availablePlugins, pluginName);
+
+	    if (!plugin) {
+	      throw new Error('Invalid plugin specified in Babel options: "' + pluginName + '"');
+	    }
+	    return plugin;
+	  });
+
+	  return _extends({
+	    babelrc: false
+	  }, options, {
+	    presets: presets,
+	    plugins: plugins
+	  });
+	}
+
+	function transform(code, options) {
+	  return Babel.transform(code, processOptions(options));
+	}
+
+	function transformFromAst(ast, code, options) {
+	  return Babel.transformFromAst(ast, code, processOptions(options));
+	}
+	var availablePlugins = exports.availablePlugins = {};
+	var availablePresets = exports.availablePresets = {};
+
+	/**

+	 * Registers a named plugin for use with Babel.

+	 */
+	function registerPlugin(name, plugin) {
+	  if (availablePlugins.hasOwnProperty(name)) {
+	    console.warn('A plugin named "' + name + '" is already registered, it will be overridden');
+	  }
+	  availablePlugins[name] = plugin;
+	}
+	/**

+	 * Registers multiple plugins for use with Babel. `newPlugins` should be an object where the key

+	 * is the name of the plugin, and the value is the plugin itself.

+	 */
+	function registerPlugins(newPlugins) {
+	  Object.keys(newPlugins).forEach(function (name) {
+	    return registerPlugin(name, newPlugins[name]);
+	  });
+	}
+
+	/**

+	 * Registers a named preset for use with Babel.

+	 */
+	function registerPreset(name, preset) {
+	  if (availablePresets.hasOwnProperty(name)) {
+	    console.warn('A preset named "' + name + '" is already registered, it will be overridden');
+	  }
+	  availablePresets[name] = preset;
+	}
+	/**

+	 * Registers multiple presets for use with Babel. `newPresets` should be an object where the key

+	 * is the name of the preset, and the value is the preset itself.

+	 */
+	function registerPresets(newPresets) {
+	  Object.keys(newPresets).forEach(function (name) {
+	    return registerPreset(name, newPresets[name]);
+	  });
+	}
+
+	// All the plugins we should bundle
+	registerPlugins({
+	  'check-es2015-constants': __webpack_require__(64),
+	  'external-helpers': __webpack_require__(319),
+	  'syntax-async-functions': __webpack_require__(65),
+	  'syntax-async-generators': __webpack_require__(192),
+	  'syntax-class-constructor-call': __webpack_require__(193),
+	  'syntax-class-properties': __webpack_require__(194),
+	  'syntax-decorators': __webpack_require__(122),
+	  'syntax-do-expressions': __webpack_require__(195),
+	  'syntax-exponentiation-operator': __webpack_require__(196),
+	  'syntax-export-extensions': __webpack_require__(197),
+	  'syntax-flow': __webpack_require__(123),
+	  'syntax-function-bind': __webpack_require__(198),
+	  'syntax-function-sent': __webpack_require__(321),
+	  'syntax-jsx': __webpack_require__(124),
+	  'syntax-object-rest-spread': __webpack_require__(199),
+	  'syntax-trailing-function-commas': __webpack_require__(125),
+	  'transform-async-functions': __webpack_require__(322),
+	  'transform-async-to-generator': __webpack_require__(126),
+	  'transform-async-to-module-method': __webpack_require__(324),
+	  'transform-class-constructor-call': __webpack_require__(200),
+	  'transform-class-properties': __webpack_require__(201),
+	  'transform-decorators': __webpack_require__(202),
+	  'transform-decorators-legacy': __webpack_require__(325).default, // <- No clue. Nope.
+	  'transform-do-expressions': __webpack_require__(203),
+	  'transform-es2015-arrow-functions': __webpack_require__(66),
+	  'transform-es2015-block-scoped-functions': __webpack_require__(67),
+	  'transform-es2015-block-scoping': __webpack_require__(68),
+	  'transform-es2015-classes': __webpack_require__(69),
+	  'transform-es2015-computed-properties': __webpack_require__(70),
+	  'transform-es2015-destructuring': __webpack_require__(71),
+	  'transform-es2015-duplicate-keys': __webpack_require__(127),
+	  'transform-es2015-for-of': __webpack_require__(72),
+	  'transform-es2015-function-name': __webpack_require__(73),
+	  'transform-es2015-instanceof': __webpack_require__(328),
+	  'transform-es2015-literals': __webpack_require__(74),
+	  'transform-es2015-modules-amd': __webpack_require__(128),
+	  'transform-es2015-modules-commonjs': __webpack_require__(75),
+	  'transform-es2015-modules-systemjs': __webpack_require__(205),
+	  'transform-es2015-modules-umd': __webpack_require__(206),
+	  'transform-es2015-object-super': __webpack_require__(76),
+	  'transform-es2015-parameters': __webpack_require__(77),
+	  'transform-es2015-shorthand-properties': __webpack_require__(78),
+	  'transform-es2015-spread': __webpack_require__(79),
+	  'transform-es2015-sticky-regex': __webpack_require__(80),
+	  'transform-es2015-template-literals': __webpack_require__(81),
+	  'transform-es2015-typeof-symbol': __webpack_require__(82),
+	  'transform-es2015-unicode-regex': __webpack_require__(83),
+	  'transform-es3-member-expression-literals': __webpack_require__(332),
+	  'transform-es3-property-literals': __webpack_require__(333),
+	  'transform-es5-property-mutators': __webpack_require__(334),
+	  'transform-eval': __webpack_require__(335),
+	  'transform-exponentiation-operator': __webpack_require__(129),
+	  'transform-export-extensions': __webpack_require__(207),
+	  'transform-flow-comments': __webpack_require__(336),
+	  'transform-flow-strip-types': __webpack_require__(208),
+	  'transform-function-bind': __webpack_require__(209),
+	  'transform-jscript': __webpack_require__(337),
+	  'transform-object-assign': __webpack_require__(338),
+	  'transform-object-rest-spread': __webpack_require__(210),
+	  'transform-object-set-prototype-of-to-assign': __webpack_require__(339),
+	  'transform-proto-to-assign': __webpack_require__(340),
+	  'transform-react-constant-elements': __webpack_require__(341),
+	  'transform-react-display-name': __webpack_require__(211),
+	  'transform-react-inline-elements': __webpack_require__(342),
+	  'transform-react-jsx': __webpack_require__(212),
+	  'transform-react-jsx-compat': __webpack_require__(343),
+	  'transform-react-jsx-self': __webpack_require__(344),
+	  'transform-react-jsx-source': __webpack_require__(345),
+	  'transform-regenerator': __webpack_require__(84),
+	  'transform-runtime': __webpack_require__(347),
+	  'transform-strict-mode': __webpack_require__(213),
+	  'undeclared-variables-check': __webpack_require__(348)
+	});
+
+	// All the presets we should bundle
+	registerPresets({
+	  es2015: __webpack_require__(214),
+	  es2016: __webpack_require__(215),
+	  es2017: __webpack_require__(216),
+	  latest: __webpack_require__(350),
+	  react: __webpack_require__(351),
+	  'stage-0': __webpack_require__(352),
+	  'stage-1': __webpack_require__(217),
+	  'stage-2': __webpack_require__(218),
+	  'stage-3': __webpack_require__(219),
+
+	  // ES2015 preset with es2015-modules-commonjs removed
+	  // Plugin list copied from babel-preset-es2015/index.js
+	  'es2015-no-commonjs': {
+	    plugins: [__webpack_require__(81), __webpack_require__(74), __webpack_require__(73), __webpack_require__(66), __webpack_require__(67), __webpack_require__(69), __webpack_require__(76), __webpack_require__(78), __webpack_require__(70), __webpack_require__(72), __webpack_require__(80), __webpack_require__(83), __webpack_require__(64), __webpack_require__(79), __webpack_require__(77), __webpack_require__(71), __webpack_require__(68), __webpack_require__(82), [__webpack_require__(84), { async: false, asyncGenerators: false }]]
+	  },
+
+	  // ES2015 preset with plugins set to loose mode.
+	  // Based off https://github.com/bkonkle/babel-preset-es2015-loose/blob/master/index.js
+	  'es2015-loose': {
+	    plugins: [[__webpack_require__(81), { loose: true }], __webpack_require__(74), __webpack_require__(73), __webpack_require__(66), __webpack_require__(67), [__webpack_require__(69), { loose: true }], __webpack_require__(76), __webpack_require__(78), __webpack_require__(127), [__webpack_require__(70), { loose: true }], [__webpack_require__(72), { loose: true }], __webpack_require__(80), __webpack_require__(83), __webpack_require__(64), [__webpack_require__(79), { loose: true }], __webpack_require__(77), [__webpack_require__(71), { loose: true }], __webpack_require__(68), __webpack_require__(82), [__webpack_require__(75), { loose: true }], [__webpack_require__(84), { async: false, asyncGenerators: false }]]
+	  }
+	});
+
+	var version = exports.version = ("6.24.0");
+
+	// Listen for load event if we're in a browser and then kick off finding and
+	// running of scripts with "text/babel" type.
+	var transformScriptTags = function transformScriptTags() {
+	  return (0, _transformScriptTags.runScripts)(transform);
+	};
+	if (typeof window !== 'undefined' && window && window.addEventListener) {
+	  window.addEventListener('DOMContentLoaded', transformScriptTags, false);
+	}
+
+	/**

+	 * Disables automatic transformation of <script> tags with "text/babel" type.

+	 */
+	function disableScriptTags() {
+	  window.removeEventListener('DOMContentLoaded', transformScriptTags);
+	}
+
+/***/ },
+/* 1 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+
+	exports.__esModule = true;
+	exports.createTypeAnnotationBasedOnTypeof = exports.removeTypeDuplicates = exports.createUnionTypeAnnotation = exports.valueToNode = exports.toBlock = exports.toExpression = exports.toStatement = exports.toBindingIdentifierName = exports.toIdentifier = exports.toKeyAlias = exports.toSequenceExpression = exports.toComputedKey = exports.isNodesEquivalent = exports.isImmutable = exports.isScope = exports.isSpecifierDefault = exports.isVar = exports.isBlockScoped = exports.isLet = exports.isValidIdentifier = exports.isReferenced = exports.isBinding = exports.getOuterBindingIdentifiers = exports.getBindingIdentifiers = exports.TYPES = exports.react = exports.DEPRECATED_KEYS = exports.BUILDER_KEYS = exports.NODE_FIELDS = exports.ALIAS_KEYS = exports.VISITOR_KEYS = exports.NOT_LOCAL_BINDING = exports.BLOCK_SCOPED_SYMBOL = exports.INHERIT_KEYS = exports.UNARY_OPERATORS = exports.STRING_UNARY_OPERATORS = exports.NUMBER_UNARY_OPERATORS = exports.BOOLEAN_UNARY_OPERATORS = exports.BINARY_OPERATORS = exports.NUMBER_BINARY_OPERATORS = exports.BOOLEAN_BINARY_OPERATORS = exports.COMPARISON_BINARY_OPERATORS = exports.EQUALITY_BINARY_OPERATORS = exports.BOOLEAN_NUMBER_BINARY_OPERATORS = exports.UPDATE_OPERATORS = exports.LOGICAL_OPERATORS = exports.COMMENT_KEYS = exports.FOR_INIT_KEYS = exports.FLATTENABLE_KEYS = exports.STATEMENT_OR_BLOCK_KEYS = undefined;
+
+	var _getOwnPropertySymbols = __webpack_require__(354);
+
+	var _getOwnPropertySymbols2 = _interopRequireDefault(_getOwnPropertySymbols);
+
+	var _getIterator2 = __webpack_require__(2);
+
+	var _getIterator3 = _interopRequireDefault(_getIterator2);
+
+	var _keys = __webpack_require__(13);
+
+	var _keys2 = _interopRequireDefault(_keys);
+
+	var _stringify = __webpack_require__(34);
+
+	var _stringify2 = _interopRequireDefault(_stringify);
+
+	var _constants = __webpack_require__(132);
+
+	Object.defineProperty(exports, "STATEMENT_OR_BLOCK_KEYS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.STATEMENT_OR_BLOCK_KEYS;
+	  }
+	});
+	Object.defineProperty(exports, "FLATTENABLE_KEYS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.FLATTENABLE_KEYS;
+	  }
+	});
+	Object.defineProperty(exports, "FOR_INIT_KEYS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.FOR_INIT_KEYS;
+	  }
+	});
+	Object.defineProperty(exports, "COMMENT_KEYS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.COMMENT_KEYS;
+	  }
+	});
+	Object.defineProperty(exports, "LOGICAL_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.LOGICAL_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "UPDATE_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.UPDATE_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "BOOLEAN_NUMBER_BINARY_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.BOOLEAN_NUMBER_BINARY_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "EQUALITY_BINARY_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.EQUALITY_BINARY_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "COMPARISON_BINARY_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.COMPARISON_BINARY_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "BOOLEAN_BINARY_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.BOOLEAN_BINARY_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "NUMBER_BINARY_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.NUMBER_BINARY_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "BINARY_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.BINARY_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "BOOLEAN_UNARY_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.BOOLEAN_UNARY_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "NUMBER_UNARY_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.NUMBER_UNARY_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "STRING_UNARY_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.STRING_UNARY_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "UNARY_OPERATORS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.UNARY_OPERATORS;
+	  }
+	});
+	Object.defineProperty(exports, "INHERIT_KEYS", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.INHERIT_KEYS;
+	  }
+	});
+	Object.defineProperty(exports, "BLOCK_SCOPED_SYMBOL", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.BLOCK_SCOPED_SYMBOL;
+	  }
+	});
+	Object.defineProperty(exports, "NOT_LOCAL_BINDING", {
+	  enumerable: true,
+	  get: function get() {
+	    return _constants.NOT_LOCAL_BINDING;
+	  }
+	});
+	exports.is = is;
+	exports.isType = isType;
+	exports.validate = validate;
+	exports.shallowEqual = shallowEqual;
+	exports.appendToMemberExpression = appendToMemberExpression;
+	exports.prependToMemberExpression = prependToMemberExpression;
+	exports.ensureBlock = ensureBlock;
+	exports.clone = clone;
+	exports.cloneWithoutLoc = cloneWithoutLoc;
+	exports.cloneDeep = cloneDeep;
+	exports.buildMatchMemberExpression = buildMatchMemberExpression;
+	exports.removeComments = removeComments;
+	exports.inheritsComments = inheritsComments;
+	exports.inheritTrailingComments = inheritTrailingComments;
+	exports.inheritLeadingComments = inheritLeadingComments;
+	exports.inheritInnerComments = inheritInnerComments;
+	exports.inherits = inherits;
+	exports.assertNode = assertNode;
+	exports.isNode = isNode;
+	exports.traverseFast = traverseFast;
+	exports.removeProperties = removeProperties;
+	exports.removePropertiesDeep = removePropertiesDeep;
+
+	var _retrievers = __webpack_require__(223);
+
+	Object.defineProperty(exports, "getBindingIdentifiers", {
+	  enumerable: true,
+	  get: function get() {
+	    return _retrievers.getBindingIdentifiers;
+	  }
+	});
+	Object.defineProperty(exports, "getOuterBindingIdentifiers", {
+	  enumerable: true,
+	  get: function get() {
+	    return _retrievers.getOuterBindingIdentifiers;
+	  }
+	});
+
+	var _validators = __webpack_require__(389);
+
+	Object.defineProperty(exports, "isBinding", {
+	  enumerable: true,
+	  get: function get() {
+	    return _validators.isBinding;
+	  }
+	});
+	Object.defineProperty(exports, "isReferenced", {
+	  enumerable: true,
+	  get: function get() {
+	    return _validators.isReferenced;
+	  }
+	});
+	Object.defineProperty(exports, "isValidIdentifier", {
+	  enumerable: true,
+	  get: function get() {
+	    return _validators.isValidIdentifier;
+	  }
+	});
+	Object.defineProperty(exports, "isLet", {
+	  enumerable: true,
+	  get: function get() {
+	    return _validators.isLet;
+	  }
+	});
+	Object.defineProperty(exports, "isBlockScoped", {
+	  enumerable: true,
+	  get: function get() {
+	    return _validators.isBlockScoped;
+	  }
+	});
+	Object.defineProperty(exports, "isVar", {
+	  enumerable: true,
+	  get: function get() {
+	    return _validators.isVar;
+	  }
+	});
+	Object.defineProperty(exports, "isSpecifierDefault", {
+	  enumerable: true,
+	  get: function get() {
+	    return _validators.isSpecifierDefault;
+	  }
+	});
+	Object.defineProperty(exports, "isScope", {
+	  enumerable: true,
+	  get: function get() {
+	    return _validators.isScope;
+	  }
+	});
+	Object.defineProperty(exports, "isImmutable", {
+	  enumerable: true,
+	  get: function get() {
+	    return _validators.isImmutable;
+	  }
+	});
+	Object.defineProperty(exports, "isNodesEquivalent", {
+	  enumerable: true,
+	  get: function get() {