diff --git a/escodegen.browser.js b/escodegen.browser.js
new file mode 100644
index 0000000..5c0768b
--- /dev/null
+++ b/escodegen.browser.js
@@ -0,0 +1,3641 @@
+// Generated by CommonJS Everywhere 0.8.1
+(function (global) {
+  function require(file, parentModule) {
+    if ({}.hasOwnProperty.call(require.cache, file))
+      return require.cache[file];
+    var resolved = require.resolve(file);
+    if (!resolved)
+      throw new Error('Failed to resolve module ' + file);
+    var module$ = {
+        id: file,
+        require: require,
+        filename: file,
+        exports: {},
+        loaded: false,
+        parent: parentModule,
+        children: []
+      };
+    if (parentModule)
+      parentModule.children.push(module$);
+    var dirname = file.slice(0, file.lastIndexOf('/') + 1);
+    require.cache[file] = module$.exports;
+    resolved.call(module$.exports, module$, module$.exports, dirname, file);
+    module$.loaded = true;
+    return require.cache[file] = module$.exports;
+  }
+  require.modules = {};
+  require.cache = {};
+  require.resolve = function (file) {
+    return {}.hasOwnProperty.call(require.modules, file) ? require.modules[file] : void 0;
+  };
+  require.define = function (file, fn) {
+    require.modules[file] = fn;
+  };
+  var process = function () {
+      var cwd = '/';
+      return {
+        title: 'browser',
+        version: 'v0.11.7',
+        browser: true,
+        env: {},
+        argv: [],
+        nextTick: global.setImmediate || function (fn) {
+          setTimeout(fn, 0);
+        },
+        cwd: function () {
+          return cwd;
+        },
+        chdir: function (dir) {
+          cwd = dir;
+        }
+      };
+    }();
+  require.define('/tools/entry-point.js', function (module, exports, __dirname, __filename) {
+    (function () {
+      'use strict';
+      global.escodegen = require('/escodegen.js', module);
+      escodegen.browser = true;
+    }());
+  });
+  require.define('/escodegen.js', function (module, exports, __dirname, __filename) {
+    (function () {
+      'use strict';
+      var Syntax, Precedence, BinaryPrecedence, Regex, SourceNode, estraverse, isArray, base, indent, json, renumber, hexadecimal, quotes, escapeless, newline, space, parentheses, semicolons, safeConcatenation, directive, extra, parse, sourceMap, FORMAT_MINIFY, FORMAT_DEFAULTS;
+      estraverse = require('/node_modules/estraverse/estraverse.js', module);
+      Syntax = {
+        AssignmentExpression: 'AssignmentExpression',
+        ArrayExpression: 'ArrayExpression',
+        ArrayPattern: 'ArrayPattern',
+        ArrowFunctionExpression: 'ArrowFunctionExpression',
+        BlockStatement: 'BlockStatement',
+        BinaryExpression: 'BinaryExpression',
+        BreakStatement: 'BreakStatement',
+        CallExpression: 'CallExpression',
+        CatchClause: 'CatchClause',
+        ComprehensionBlock: 'ComprehensionBlock',
+        ComprehensionExpression: 'ComprehensionExpression',
+        ConditionalExpression: 'ConditionalExpression',
+        ContinueStatement: 'ContinueStatement',
+        DirectiveStatement: 'DirectiveStatement',
+        DoWhileStatement: 'DoWhileStatement',
+        DebuggerStatement: 'DebuggerStatement',
+        EmptyStatement: 'EmptyStatement',
+        ExpressionStatement: 'ExpressionStatement',
+        ForStatement: 'ForStatement',
+        ForInStatement: 'ForInStatement',
+        FunctionDeclaration: 'FunctionDeclaration',
+        FunctionExpression: 'FunctionExpression',
+        Identifier: 'Identifier',
+        IfStatement: 'IfStatement',
+        Literal: 'Literal',
+        LabeledStatement: 'LabeledStatement',
+        LogicalExpression: 'LogicalExpression',
+        MemberExpression: 'MemberExpression',
+        NewExpression: 'NewExpression',
+        ObjectExpression: 'ObjectExpression',
+        ObjectPattern: 'ObjectPattern',
+        Program: 'Program',
+        Property: 'Property',
+        ReturnStatement: 'ReturnStatement',
+        SequenceExpression: 'SequenceExpression',
+        SwitchStatement: 'SwitchStatement',
+        SwitchCase: 'SwitchCase',
+        ThisExpression: 'ThisExpression',
+        ThrowStatement: 'ThrowStatement',
+        TryStatement: 'TryStatement',
+        UnaryExpression: 'UnaryExpression',
+        UpdateExpression: 'UpdateExpression',
+        VariableDeclaration: 'VariableDeclaration',
+        VariableDeclarator: 'VariableDeclarator',
+        WhileStatement: 'WhileStatement',
+        WithStatement: 'WithStatement',
+        YieldExpression: 'YieldExpression'
+      };
+      Precedence = {
+        Sequence: 0,
+        Assignment: 1,
+        Conditional: 2,
+        ArrowFunction: 2,
+        LogicalOR: 3,
+        LogicalAND: 4,
+        BitwiseOR: 5,
+        BitwiseXOR: 6,
+        BitwiseAND: 7,
+        Equality: 8,
+        Relational: 9,
+        BitwiseSHIFT: 10,
+        Additive: 11,
+        Multiplicative: 12,
+        Unary: 13,
+        Postfix: 14,
+        Call: 15,
+        New: 16,
+        Member: 17,
+        Primary: 18
+      };
+      BinaryPrecedence = {
+        '||': Precedence.LogicalOR,
+        '&&': Precedence.LogicalAND,
+        '|': Precedence.BitwiseOR,
+        '^': Precedence.BitwiseXOR,
+        '&': Precedence.BitwiseAND,
+        '==': Precedence.Equality,
+        '!=': Precedence.Equality,
+        '===': Precedence.Equality,
+        '!==': Precedence.Equality,
+        'is': Precedence.Equality,
+        'isnt': Precedence.Equality,
+        '<': Precedence.Relational,
+        '>': Precedence.Relational,
+        '<=': Precedence.Relational,
+        '>=': Precedence.Relational,
+        'in': Precedence.Relational,
+        'instanceof': Precedence.Relational,
+        '<<': Precedence.BitwiseSHIFT,
+        '>>': Precedence.BitwiseSHIFT,
+        '>>>': Precedence.BitwiseSHIFT,
+        '+': Precedence.Additive,
+        '-': Precedence.Additive,
+        '*': Precedence.Multiplicative,
+        '%': Precedence.Multiplicative,
+        '/': Precedence.Multiplicative
+      };
+      Regex = { NonAsciiIdentifierPart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0300-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u0483-\u0487\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u05d0-\u05ea\u05f0-\u05f2\u0610-\u061a\u0620-\u0669\u066e-\u06d3\u06d5-\u06dc\u06df-\u06e8\u06ea-\u06fc\u06ff\u0710-\u074a\u074d-\u07b1\u07c0-\u07f5\u07fa\u0800-\u082d\u0840-\u085b\u08a0\u08a2-\u08ac\u08e4-\u08fe\u0900-\u0963\u0966-\u096f\u0971-\u0977\u0979-\u097f\u0981-\u0983\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bc-\u09c4\u09c7\u09c8\u09cb-\u09ce\u09d7\u09dc\u09dd\u09df-\u09e3\u09e6-\u09f1\u0a01-\u0a03\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a59-\u0a5c\u0a5e\u0a66-\u0a75\u0a81-\u0a83\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abc-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ad0\u0ae0-\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3c-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b5c\u0b5d\u0b5f-\u0b63\u0b66-\u0b6f\u0b71\u0b82\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd0\u0bd7\u0be6-\u0bef\u0c01-\u0c03\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c58\u0c59\u0c60-\u0c63\u0c66-\u0c6f\u0c82\u0c83\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbc-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0cde\u0ce0-\u0ce3\u0ce6-\u0cef\u0cf1\u0cf2\u0d02\u0d03\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d-\u0d44\u0d46-\u0d48\u0d4a-\u0d4e\u0d57\u0d60-\u0d63\u0d66-\u0d6f\u0d7a-\u0d7f\u0d82\u0d83\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0df2\u0df3\u0e01-\u0e3a\u0e40-\u0e4e\u0e50-\u0e59\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb9\u0ebb-\u0ebd\u0ec0-\u0ec4\u0ec6\u0ec8-\u0ecd\u0ed0-\u0ed9\u0edc-\u0edf\u0f00\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e-\u0f47\u0f49-\u0f6c\u0f71-\u0f84\u0f86-\u0f97\u0f99-\u0fbc\u0fc6\u1000-\u1049\u1050-\u109d\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\u135d-\u135f\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176c\u176e-\u1770\u1772\u1773\u1780-\u17d3\u17d7\u17dc\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u1820-\u1877\u1880-\u18aa\u18b0-\u18f5\u1900-\u191c\u1920-\u192b\u1930-\u193b\u1946-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u19d0-\u19d9\u1a00-\u1a1b\u1a20-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1aa7\u1b00-\u1b4b\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1bf3\u1c00-\u1c37\u1c40-\u1c49\u1c4d-\u1c7d\u1cd0-\u1cd2\u1cd4-\u1cf6\u1d00-\u1de6\u1dfc-\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\u200c\u200d\u203f\u2040\u2054\u2071\u207f\u2090-\u209c\u20d0-\u20dc\u20e1\u20e5-\u20f0\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-\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d7f-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2de0-\u2dff\u2e2f\u3005-\u3007\u3021-\u302f\u3031-\u3035\u3038-\u303c\u3041-\u3096\u3099\u309a\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-\ua62b\ua640-\ua66f\ua674-\ua67d\ua67f-\ua697\ua69f-\ua6f1\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua827\ua840-\ua873\ua880-\ua8c4\ua8d0-\ua8d9\ua8e0-\ua8f7\ua8fb\ua900-\ua92d\ua930-\ua953\ua960-\ua97c\ua980-\ua9c0\ua9cf-\ua9d9\uaa00-\uaa36\uaa40-\uaa4d\uaa50-\uaa59\uaa60-\uaa76\uaa7a\uaa7b\uaa80-\uaac2\uaadb-\uaadd\uaae0-\uaaef\uaaf2-\uaaf6\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabea\uabec\uabed\uabf0-\uabf9\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe00-\ufe0f\ufe20-\ufe26\ufe33\ufe34\ufe4d-\ufe4f\ufe70-\ufe74\ufe76-\ufefc\uff10-\uff19\uff21-\uff3a\uff3f\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]') };
+      function getDefaultOptions() {
+        return {
+          indent: null,
+          base: null,
+          parse: null,
+          comment: false,
+          format: {
+            indent: {
+              style: '    ',
+              base: 0,
+              adjustMultilineComment: false
+            },
+            newline: '\n',
+            space: ' ',
+            json: false,
+            renumber: false,
+            hexadecimal: false,
+            quotes: 'single',
+            escapeless: false,
+            compact: false,
+            parentheses: true,
+            semicolons: true,
+            safeConcatenation: false
+          },
+          moz: {
+            starlessGenerator: false,
+            parenthesizedComprehensionBlock: false
+          },
+          sourceMap: null,
+          sourceMapRoot: null,
+          sourceMapWithCode: false,
+          directive: false,
+          verbatim: null
+        };
+      }
+      function stringToArray(str) {
+        var length = str.length, result = [], i;
+        for (i = 0; i < length; i += 1) {
+          result[i] = str.charAt(i);
+        }
+        return result;
+      }
+      function stringRepeat(str, num) {
+        var result = '';
+        for (num |= 0; num > 0; num >>>= 1, str += str) {
+          if (num & 1) {
+            result += str;
+          }
+        }
+        return result;
+      }
+      isArray = Array.isArray;
+      if (!isArray) {
+        isArray = function isArray(array) {
+          return Object.prototype.toString.call(array) === '[object Array]';
+        };
+      }
+      function SourceNodeMock(line, column, filename, chunk) {
+        var result = [];
+        function flatten(input) {
+          var i, iz;
+          if (isArray(input)) {
+            for (i = 0, iz = input.length; i < iz; ++i) {
+              flatten(input[i]);
+            }
+          } else if (input instanceof SourceNodeMock) {
+            result.push(input);
+          } else if (typeof input === 'string' && input) {
+            result.push(input);
+          }
+        }
+        flatten(chunk);
+        this.children = result;
+      }
+      SourceNodeMock.prototype.toString = function toString() {
+        var res = '', i, iz, node;
+        for (i = 0, iz = this.children.length; i < iz; ++i) {
+          node = this.children[i];
+          if (node instanceof SourceNodeMock) {
+            res += node.toString();
+          } else {
+            res += node;
+          }
+        }
+        return res;
+      };
+      SourceNodeMock.prototype.replaceRight = function replaceRight(pattern, replacement) {
+        var last = this.children[this.children.length - 1];
+        if (last instanceof SourceNodeMock) {
+          last.replaceRight(pattern, replacement);
+        } else if (typeof last === 'string') {
+          this.children[this.children.length - 1] = last.replace(pattern, replacement);
+        } else {
+          this.children.push(''.replace(pattern, replacement));
+        }
+        return this;
+      };
+      SourceNodeMock.prototype.join = function join(sep) {
+        var i, iz, result;
+        result = [];
+        iz = this.children.length;
+        if (iz > 0) {
+          for (i = 0, iz -= 1; i < iz; ++i) {
+            result.push(this.children[i], sep);
+          }
+          result.push(this.children[iz]);
+          this.children = result;
+        }
+        return this;
+      };
+      function hasLineTerminator(str) {
+        return /[\r\n]/g.test(str);
+      }
+      function endsWithLineTerminator(str) {
+        var ch = str.charAt(str.length - 1);
+        return ch && isLineTerminator(ch);
+      }
+      function updateDeeply(target, override) {
+        var key, val;
+        function isHashObject(target) {
+          return typeof target === 'object' && target instanceof Object && !(target instanceof RegExp);
+        }
+        for (key in override) {
+          if (override.hasOwnProperty(key)) {
+            val = override[key];
+            if (isHashObject(val)) {
+              if (isHashObject(target[key])) {
+                updateDeeply(target[key], val);
+              } else {
+                target[key] = updateDeeply({}, val);
+              }
+            } else {
+              target[key] = val;
+            }
+          }
+        }
+        return target;
+      }
+      function generateNumber(value) {
+        var result, point, temp, exponent, pos;
+        if (value !== value) {
+          throw new Error('Numeric literal whose value is NaN');
+        }
+        if (value < 0 || value === 0 && 1 / value < 0) {
+          throw new Error('Numeric literal whose value is negative');
+        }
+        if (value === 1 / 0) {
+          return json ? 'null' : renumber ? '1e400' : '1e+400';
+        }
+        result = '' + value;
+        if (!renumber || result.length < 3) {
+          return result;
+        }
+        point = result.indexOf('.');
+        if (!json && result.charAt(0) === '0' && point === 1) {
+          point = 0;
+          result = result.slice(1);
+        }
+        temp = result;
+        result = result.replace('e+', 'e');
+        exponent = 0;
+        if ((pos = temp.indexOf('e')) > 0) {
+          exponent = +temp.slice(pos + 1);
+          temp = temp.slice(0, pos);
+        }
+        if (point >= 0) {
+          exponent -= temp.length - point - 1;
+          temp = +(temp.slice(0, point) + temp.slice(point + 1)) + '';
+        }
+        pos = 0;
+        while (temp.charAt(temp.length + pos - 1) === '0') {
+          pos -= 1;
+        }
+        if (pos !== 0) {
+          exponent -= pos;
+          temp = temp.slice(0, pos);
+        }
+        if (exponent !== 0) {
+          temp += 'e' + exponent;
+        }
+        if ((temp.length < result.length || hexadecimal && value > 1e12 && Math.floor(value) === value && (temp = '0x' + value.toString(16)).length < result.length) && +temp === value) {
+          result = temp;
+        }
+        return result;
+      }
+      function escapeRegExpCharacter(ch, previousIsBackslash) {
+        if ((ch & ~1) === 8232) {
+          return (previousIsBackslash ? 'u' : '\\u') + (ch === 8232 ? '2028' : '2029');
+        } else if (ch === 10 || ch === 13) {
+          return (previousIsBackslash ? '' : '\\') + (ch === 10 ? 'n' : 'r');
+        }
+        return String.fromCharCode(ch);
+      }
+      function generateRegExp(reg) {
+        var match, result, flags, i, iz, ch, characterInBrack, previousIsBackslash;
+        result = reg.toString();
+        if (reg.source) {
+          match = result.match(/\/([^/]*)$/);
+          if (!match) {
+            return result;
+          }
+          flags = match[1];
+          result = '';
+          characterInBrack = false;
+          previousIsBackslash = false;
+          for (i = 0, iz = reg.source.length; i < iz; ++i) {
+            ch = reg.source.charCodeAt(i);
+            if (!previousIsBackslash) {
+              if (characterInBrack) {
+                if (ch === 93) {
+                  characterInBrack = false;
+                }
+              } else {
+                if (ch === 47) {
+                  result += '\\';
+                } else if (ch === 91) {
+                  characterInBrack = true;
+                }
+              }
+              result += escapeRegExpCharacter(ch, previousIsBackslash);
+              previousIsBackslash = ch === 92;
+            } else {
+              result += escapeRegExpCharacter(ch, previousIsBackslash);
+              previousIsBackslash = false;
+            }
+          }
+          return '/' + result + '/' + flags;
+        }
+        return result;
+      }
+      function escapeAllowedCharacter(ch, next) {
+        var code = ch.charCodeAt(0), hex = code.toString(16), result = '\\';
+        switch (ch) {
+        case '\b':
+          result += 'b';
+          break;
+        case '\f':
+          result += 'f';
+          break;
+        case '\t':
+          result += 't';
+          break;
+        default:
+          if (json || code > 255) {
+            result += 'u' + '0000'.slice(hex.length) + hex;
+          } else if (ch === '\0' && '0123456789'.indexOf(next) < 0) {
+            result += '0';
+          } else if (ch === '\x0B') {
+            result += 'x0B';
+          } else {
+            result += 'x' + '00'.slice(hex.length) + hex;
+          }
+          break;
+        }
+        return result;
+      }
+      function escapeDisallowedCharacter(ch) {
+        var result = '\\';
+        switch (ch) {
+        case '\\':
+          result += '\\';
+          break;
+        case '\n':
+          result += 'n';
+          break;
+        case '\r':
+          result += 'r';
+          break;
+        case '\u2028':
+          result += 'u2028';
+          break;
+        case '\u2029':
+          result += 'u2029';
+          break;
+        default:
+          throw new Error('Incorrectly classified character');
+        }
+        return result;
+      }
+      function escapeDirective(str) {
+        var i, iz, ch, buf, quote;
+        buf = str;
+        if (typeof buf[0] === 'undefined') {
+          buf = stringToArray(buf);
+        }
+        quote = quotes === 'double' ? '"' : "'";
+        for (i = 0, iz = buf.length; i < iz; i += 1) {
+          ch = buf[i];
+          if (ch === "'") {
+            quote = '"';
+            break;
+          } else if (ch === '"') {
+            quote = "'";
+            break;
+          } else if (ch === '\\') {
+            i += 1;
+          }
+        }
+        return quote + str + quote;
+      }
+      function escapeString(str) {
+        var result = '', i, len, ch, singleQuotes = 0, doubleQuotes = 0, single;
+        if (typeof str[0] === 'undefined') {
+          str = stringToArray(str);
+        }
+        for (i = 0, len = str.length; i < len; i += 1) {
+          ch = str[i];
+          if (ch === "'") {
+            singleQuotes += 1;
+          } else if (ch === '"') {
+            doubleQuotes += 1;
+          } else if (ch === '/' && json) {
+            result += '\\';
+          } else if ('\\\n\r\u2028\u2029'.indexOf(ch) >= 0) {
+            result += escapeDisallowedCharacter(ch);
+            continue;
+          } else if (json && ch < ' ' || !(json || escapeless || ch >= ' ' && ch <= '~')) {
+            result += escapeAllowedCharacter(ch, str[i + 1]);
+            continue;
+          }
+          result += ch;
+        }
+        single = !(quotes === 'double' || quotes === 'auto' && doubleQuotes < singleQuotes);
+        str = result;
+        result = single ? "'" : '"';
+        if (typeof str[0] === 'undefined') {
+          str = stringToArray(str);
+        }
+        for (i = 0, len = str.length; i < len; i += 1) {
+          ch = str[i];
+          if (ch === "'" && single || ch === '"' && !single) {
+            result += '\\';
+          }
+          result += ch;
+        }
+        return result + (single ? "'" : '"');
+      }
+      function isWhiteSpace(ch) {
+        return '\t\x0B\f \xa0'.indexOf(ch) >= 0 || ch.charCodeAt(0) >= 5760 && '\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\ufeff'.indexOf(ch) >= 0;
+      }
+      function isLineTerminator(ch) {
+        return '\n\r\u2028\u2029'.indexOf(ch) >= 0;
+      }
+      function isIdentifierPart(ch) {
+        return ch === '$' || ch === '_' || ch === '\\' || ch >= 'a' && ch <= 'z' || ch >= 'A' && ch <= 'Z' || ch >= '0' && ch <= '9' || ch.charCodeAt(0) >= 128 && Regex.NonAsciiIdentifierPart.test(ch);
+      }
+      function isDecimalDigit(ch) {
+        return ch >= 48 && ch <= 57;
+      }
+      function toSourceNode(generated, node) {
+        if (node == null) {
+          if (generated instanceof SourceNode) {
+            return generated;
+          } else {
+            node = {};
+          }
+        }
+        if (node.loc == null) {
+          return new SourceNode(null, null, sourceMap, generated, node.name || null);
+        }
+        return new SourceNode(node.loc.start.line, node.loc.start.column, sourceMap === true ? node.loc.source || null : sourceMap, generated, node.name || null);
+      }
+      function noEmptySpace() {
+        return space ? space : ' ';
+      }
+      function join(left, right) {
+        var leftSource = toSourceNode(left).toString(), rightSource = toSourceNode(right).toString(), leftChar = leftSource.charAt(leftSource.length - 1), rightChar = rightSource.charAt(0);
+        if ((leftChar === '+' || leftChar === '-') && leftChar === rightChar || isIdentifierPart(leftChar) && isIdentifierPart(rightChar) || leftChar === '/' && rightChar === 'i') {
+          return [
+            left,
+            noEmptySpace(),
+            right
+          ];
+        } else if (isWhiteSpace(leftChar) || isLineTerminator(leftChar) || isWhiteSpace(rightChar) || isLineTerminator(rightChar)) {
+          return [
+            left,
+            right
+          ];
+        }
+        return [
+          left,
+          space,
+          right
+        ];
+      }
+      function addIndent(stmt) {
+        return [
+          base,
+          stmt
+        ];
+      }
+      function withIndent(fn) {
+        var previousBase, result;
+        previousBase = base;
+        base += indent;
+        result = fn.call(this, base);
+        base = previousBase;
+        return result;
+      }
+      function calculateSpaces(str) {
+        var i;
+        for (i = str.length - 1; i >= 0; i -= 1) {
+          if (isLineTerminator(str.charAt(i))) {
+            break;
+          }
+        }
+        return str.length - 1 - i;
+      }
+      function adjustMultilineComment(value, specialBase) {
+        var array, i, len, line, j, spaces, previousBase;
+        array = value.split(/\r\n|[\r\n]/);
+        spaces = Number.MAX_VALUE;
+        for (i = 1, len = array.length; i < len; i += 1) {
+          line = array[i];
+          j = 0;
+          while (j < line.length && isWhiteSpace(line[j])) {
+            j += 1;
+          }
+          if (spaces > j) {
+            spaces = j;
+          }
+        }
+        if (typeof specialBase !== 'undefined') {
+          previousBase = base;
+          if (array[1][spaces] === '*') {
+            specialBase += ' ';
+          }
+          base = specialBase;
+        } else {
+          if (spaces & 1) {
+            spaces -= 1;
+          }
+          previousBase = base;
+        }
+        for (i = 1, len = array.length; i < len; i += 1) {
+          array[i] = toSourceNode(addIndent(array[i].slice(spaces))).join('');
+        }
+        base = previousBase;
+        return array.join('\n');
+      }
+      function generateComment(comment, specialBase) {
+        if (comment.type === 'Line') {
+          if (endsWithLineTerminator(comment.value)) {
+            return '//' + comment.value;
+          } else {
+            return '//' + comment.value + '\n';
+          }
+        }
+        if (extra.format.indent.adjustMultilineComment && /[\n\r]/.test(comment.value)) {
+          return adjustMultilineComment('/*' + comment.value + '*/', specialBase);
+        }
+        return '/*' + comment.value + '*/';
+      }
+      function addCommentsToStatement(stmt, result) {
+        var i, len, comment, save, tailingToStatement, specialBase, fragment;
+        if (stmt.leadingComments && stmt.leadingComments.length > 0) {
+          save = result;
+          comment = stmt.leadingComments[0];
+          result = [];
+          if (safeConcatenation && stmt.type === Syntax.Program && stmt.body.length === 0) {
+            result.push('\n');
+          }
+          result.push(generateComment(comment));
+          if (!endsWithLineTerminator(toSourceNode(result).toString())) {
+            result.push('\n');
+          }
+          for (i = 1, len = stmt.leadingComments.length; i < len; i += 1) {
+            comment = stmt.leadingComments[i];
+            fragment = [generateComment(comment)];
+            if (!endsWithLineTerminator(toSourceNode(fragment).toString())) {
+              fragment.push('\n');
+            }
+            result.push(addIndent(fragment));
+          }
+          result.push(addIndent(save));
+        }
+        if (stmt.trailingComments) {
+          tailingToStatement = !endsWithLineTerminator(toSourceNode(result).toString());
+          specialBase = stringRepeat(' ', calculateSpaces(toSourceNode([
+            base,
+            result,
+            indent
+          ]).toString()));
+          for (i = 0, len = stmt.trailingComments.length; i < len; i += 1) {
+            comment = stmt.trailingComments[i];
+            if (tailingToStatement) {
+              if (i === 0) {
+                result = [
+                  result,
+                  indent
+                ];
+              } else {
+                result = [
+                  result,
+                  specialBase
+                ];
+              }
+              result.push(generateComment(comment, specialBase));
+            } else {
+              result = [
+                result,
+                addIndent(generateComment(comment))
+              ];
+            }
+            if (i !== len - 1 && !endsWithLineTerminator(toSourceNode(result).toString())) {
+              result = [
+                result,
+                '\n'
+              ];
+            }
+          }
+        }
+        return result;
+      }
+      function parenthesize(text, current, should) {
+        if (current < should) {
+          return [
+            '(',
+            text,
+            ')'
+          ];
+        }
+        return text;
+      }
+      function maybeBlock(stmt, semicolonOptional, functionBody) {
+        var result, noLeadingComment;
+        noLeadingComment = !extra.comment || !stmt.leadingComments;
+        if (stmt.type === Syntax.BlockStatement && noLeadingComment) {
+          return [
+            space,
+            generateStatement(stmt, { functionBody: functionBody })
+          ];
+        }
+        if (stmt.type === Syntax.EmptyStatement && noLeadingComment) {
+          return ';';
+        }
+        withIndent(function () {
+          result = [
+            newline,
+            addIndent(generateStatement(stmt, {
+              semicolonOptional: semicolonOptional,
+              functionBody: functionBody
+            }))
+          ];
+        });
+        return result;
+      }
+      function maybeBlockSuffix(stmt, result) {
+        var ends = endsWithLineTerminator(toSourceNode(result).toString());
+        if (stmt.type === Syntax.BlockStatement && (!extra.comment || !stmt.leadingComments) && !ends) {
+          return [
+            result,
+            space
+          ];
+        }
+        if (ends) {
+          return [
+            result,
+            base
+          ];
+        }
+        return [
+          result,
+          newline,
+          base
+        ];
+      }
+      function generateVerbatim(expr, option) {
+        var i, result;
+        result = expr[extra.verbatim].split(/\r\n|\n/);
+        for (i = 1; i < result.length; i++) {
+          result[i] = newline + base + result[i];
+        }
+        result = parenthesize(result, Precedence.Sequence, option.precedence);
+        return toSourceNode(result, expr);
+      }
+      function generateIdentifier(node) {
+        return toSourceNode(node.name, node);
+      }
+      function generateFunctionBody(node) {
+        var result, i, len, expr, arrow;
+        arrow = node.type === Syntax.ArrowFunctionExpression;
+        if (arrow && node.params.length === 1 && node.params[0].type === Syntax.Identifier) {
+          result = [generateIdentifier(node.params[0])];
+        } else {
+          result = ['('];
+          for (i = 0, len = node.params.length; i < len; i += 1) {
+            result.push(generateIdentifier(node.params[i]));
+            if (i + 1 < len) {
+              result.push(',' + space);
+            }
+          }
+          result.push(')');
+        }
+        if (arrow) {
+          result.push(space, '=>');
+        }
+        if (node.expression) {
+          result.push(space);
+          expr = generateExpression(node.body, {
+            precedence: Precedence.Assignment,
+            allowIn: true,
+            allowCall: true
+          });
+          if (expr.toString().charAt(0) === '{') {
+            expr = [
+              '(',
+              expr,
+              ')'
+            ];
+          }
+          result.push(expr);
+        } else {
+          result.push(maybeBlock(node.body, false, true));
+        }
+        return result;
+      }
+      function generateExpression(expr, option) {
+        var result, precedence, type, currentPrecedence, i, len, raw, fragment, multiline, leftChar, leftSource, rightChar, allowIn, allowCall, allowUnparenthesizedNew, property;
+        precedence = option.precedence;
+        allowIn = option.allowIn;
+        allowCall = option.allowCall;
+        type = expr.type || option.type;
+        if (extra.verbatim && expr.hasOwnProperty(extra.verbatim)) {
+          return generateVerbatim(expr, option);
+        }
+        switch (type) {
+        case Syntax.SequenceExpression:
+          result = [];
+          allowIn |= Precedence.Sequence < precedence;
+          for (i = 0, len = expr.expressions.length; i < len; i += 1) {
+            result.push(generateExpression(expr.expressions[i], {
+              precedence: Precedence.Assignment,
+              allowIn: allowIn,
+              allowCall: true
+            }));
+            if (i + 1 < len) {
+              result.push(',' + space);
+            }
+          }
+          result = parenthesize(result, Precedence.Sequence, precedence);
+          break;
+        case Syntax.AssignmentExpression:
+          allowIn |= Precedence.Assignment < precedence;
+          result = parenthesize([
+            generateExpression(expr.left, {
+              precedence: Precedence.Call,
+              allowIn: allowIn,
+              allowCall: true
+            }),
+            space + expr.operator + space,
+            generateExpression(expr.right, {
+              precedence: Precedence.Assignment,
+              allowIn: allowIn,
+              allowCall: true
+            })
+          ], Precedence.Assignment, precedence);
+          break;
+        case Syntax.ArrowFunctionExpression:
+          allowIn |= Precedence.ArrowFunction < precedence;
+          result = parenthesize(generateFunctionBody(expr), Precedence.ArrowFunction, precedence);
+          break;
+        case Syntax.ConditionalExpression:
+          allowIn |= Precedence.Conditional < precedence;
+          result = parenthesize([
+            generateExpression(expr.test, {
+              precedence: Precedence.LogicalOR,
+              allowIn: allowIn,
+              allowCall: true
+            }),
+            space + '?' + space,
+            generateExpression(expr.consequent, {
+              precedence: Precedence.Assignment,
+              allowIn: allowIn,
+              allowCall: true
+            }),
+            space + ':' + space,
+            generateExpression(expr.alternate, {
+              precedence: Precedence.Assignment,
+              allowIn: allowIn,
+              allowCall: true
+            })
+          ], Precedence.Conditional, precedence);
+          break;
+        case Syntax.LogicalExpression:
+        case Syntax.BinaryExpression:
+          currentPrecedence = BinaryPrecedence[expr.operator];
+          allowIn |= currentPrecedence < precedence;
+          fragment = generateExpression(expr.left, {
+            precedence: currentPrecedence,
+            allowIn: allowIn,
+            allowCall: true
+          });
+          leftSource = fragment.toString();
+          if (leftSource.charAt(leftSource.length - 1) === '/' && isIdentifierPart(expr.operator.charAt(0))) {
+            result = [
+              fragment,
+              noEmptySpace(),
+              expr.operator
+            ];
+          } else {
+            result = join(fragment, expr.operator);
+          }
+          fragment = generateExpression(expr.right, {
+            precedence: currentPrecedence + 1,
+            allowIn: allowIn,
+            allowCall: true
+          });
+          if (expr.operator === '/' && fragment.toString().charAt(0) === '/' || expr.operator.slice(-1) === '<' && fragment.toString().slice(0, 3) === '!--') {
+            result.push(noEmptySpace(), fragment);
+          } else {
+            result = join(result, fragment);
+          }
+          if (expr.operator === 'in' && !allowIn) {
+            result = [
+              '(',
+              result,
+              ')'
+            ];
+          } else {
+            result = parenthesize(result, currentPrecedence, precedence);
+          }
+          break;
+        case Syntax.CallExpression:
+          result = [generateExpression(expr.callee, {
+              precedence: Precedence.Call,
+              allowIn: true,
+              allowCall: true,
+              allowUnparenthesizedNew: false
+            })];
+          result.push('(');
+          for (i = 0, len = expr['arguments'].length; i < len; i += 1) {
+            result.push(generateExpression(expr['arguments'][i], {
+              precedence: Precedence.Assignment,
+              allowIn: true,
+              allowCall: true
+            }));
+            if (i + 1 < len) {
+              result.push(',' + space);
+            }
+          }
+          result.push(')');
+          if (!allowCall) {
+            result = [
+              '(',
+              result,
+              ')'
+            ];
+          } else {
+            result = parenthesize(result, Precedence.Call, precedence);
+          }
+          break;
+        case Syntax.NewExpression:
+          len = expr['arguments'].length;
+          allowUnparenthesizedNew = option.allowUnparenthesizedNew === undefined || option.allowUnparenthesizedNew;
+          result = join('new', generateExpression(expr.callee, {
+            precedence: Precedence.New,
+            allowIn: true,
+            allowCall: false,
+            allowUnparenthesizedNew: allowUnparenthesizedNew && !parentheses && len === 0
+          }));
+          if (!allowUnparenthesizedNew || parentheses || len > 0) {
+            result.push('(');
+            for (i = 0; i < len; i += 1) {
+              result.push(generateExpression(expr['arguments'][i], {
+                precedence: Precedence.Assignment,
+                allowIn: true,
+                allowCall: true
+              }));
+              if (i + 1 < len) {
+                result.push(',' + space);
+              }
+            }
+            result.push(')');
+          }
+          result = parenthesize(result, Precedence.New, precedence);
+          break;
+        case Syntax.MemberExpression:
+          result = [generateExpression(expr.object, {
+              precedence: Precedence.Call,
+              allowIn: true,
+              allowCall: allowCall,
+              allowUnparenthesizedNew: false
+            })];
+          if (expr.computed) {
+            result.push('[', generateExpression(expr.property, {
+              precedence: Precedence.Sequence,
+              allowIn: true,
+              allowCall: allowCall
+            }), ']');
+          } else {
+            if (expr.object.type === Syntax.Literal && typeof expr.object.value === 'number') {
+              fragment = toSourceNode(result).toString();
+              if (fragment.indexOf('.') < 0 && !/[eExX]/.test(fragment) && isDecimalDigit(fragment.charCodeAt(fragment.length - 1)) && !(fragment.length >= 2 && fragment.charCodeAt(0) === 48)) {
+                result.push('.');
+              }
+            }
+            result.push('.', generateIdentifier(expr.property));
+          }
+          result = parenthesize(result, Precedence.Member, precedence);
+          break;
+        case Syntax.UnaryExpression:
+          fragment = generateExpression(expr.argument, {
+            precedence: Precedence.Unary,
+            allowIn: true,
+            allowCall: true
+          });
+          if (space === '') {
+            result = join(expr.operator, fragment);
+          } else {
+            result = [expr.operator];
+            if (expr.operator.length > 2) {
+              result = join(result, fragment);
+            } else {
+              leftSource = toSourceNode(result).toString();
+              leftChar = leftSource.charAt(leftSource.length - 1);
+              rightChar = fragment.toString().charAt(0);
+              if ((leftChar === '+' || leftChar === '-') && leftChar === rightChar || isIdentifierPart(leftChar) && isIdentifierPart(rightChar)) {
+                result.push(noEmptySpace(), fragment);
+              } else {
+                result.push(fragment);
+              }
+            }
+          }
+          result = parenthesize(result, Precedence.Unary, precedence);
+          break;
+        case Syntax.YieldExpression:
+          if (expr.delegate) {
+            result = 'yield*';
+          } else {
+            result = 'yield';
+          }
+          if (expr.argument) {
+            result = join(result, generateExpression(expr.argument, {
+              precedence: Precedence.Assignment,
+              allowIn: true,
+              allowCall: true
+            }));
+          }
+          break;
+        case Syntax.UpdateExpression:
+          if (expr.prefix) {
+            result = parenthesize([
+              expr.operator,
+              generateExpression(expr.argument, {
+                precedence: Precedence.Unary,
+                allowIn: true,
+                allowCall: true
+              })
+            ], Precedence.Unary, precedence);
+          } else {
+            result = parenthesize([
+              generateExpression(expr.argument, {
+                precedence: Precedence.Postfix,
+                allowIn: true,
+                allowCall: true
+              }),
+              expr.operator
+            ], Precedence.Postfix, precedence);
+          }
+          break;
+        case Syntax.FunctionExpression:
+          result = 'function';
+          if (expr.id) {
+            result = [
+              result,
+              noEmptySpace(),
+              generateIdentifier(expr.id),
+              generateFunctionBody(expr)
+            ];
+          } else {
+            result = [
+              result + space,
+              generateFunctionBody(expr)
+            ];
+          }
+          break;
+        case Syntax.ArrayPattern:
+        case Syntax.ArrayExpression:
+          if (!expr.elements.length) {
+            result = '[]';
+            break;
+          }
+          multiline = expr.elements.length > 1;
+          result = [
+            '[',
+            multiline ? newline : ''
+          ];
+          withIndent(function (indent) {
+            for (i = 0, len = expr.elements.length; i < len; i += 1) {
+              if (!expr.elements[i]) {
+                if (multiline) {
+                  result.push(indent);
+                }
+                if (i + 1 === len) {
+                  result.push(',');
+                }
+              } else {
+                result.push(multiline ? indent : '', generateExpression(expr.elements[i], {
+                  precedence: Precedence.Assignment,
+                  allowIn: true,
+                  allowCall: true
+                }));
+              }
+              if (i + 1 < len) {
+                result.push(',' + (multiline ? newline : space));
+              }
+            }
+          });
+          if (multiline && !endsWithLineTerminator(toSourceNode(result).toString())) {
+            result.push(newline);
+          }
+          result.push(multiline ? base : '', ']');
+          break;
+        case Syntax.Property:
+          if (expr.kind === 'get' || expr.kind === 'set') {
+            result = [
+              expr.kind,
+              noEmptySpace(),
+              generateExpression(expr.key, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              }),
+              generateFunctionBody(expr.value)
+            ];
+          } else {
+            if (expr.shorthand) {
+              result = generateExpression(expr.key, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              });
+            } else if (expr.method) {
+              result = [];
+              if (expr.value.generator) {
+                result.push('*');
+              }
+              result.push(generateExpression(expr.key, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              }), generateFunctionBody(expr.value));
+            } else {
+              result = [
+                generateExpression(expr.key, {
+                  precedence: Precedence.Sequence,
+                  allowIn: true,
+                  allowCall: true
+                }),
+                ':' + space,
+                generateExpression(expr.value, {
+                  precedence: Precedence.Assignment,
+                  allowIn: true,
+                  allowCall: true
+                })
+              ];
+            }
+          }
+          break;
+        case Syntax.ObjectExpression:
+          if (!expr.properties.length) {
+            result = '{}';
+            break;
+          }
+          multiline = expr.properties.length > 1;
+          withIndent(function () {
+            fragment = generateExpression(expr.properties[0], {
+              precedence: Precedence.Sequence,
+              allowIn: true,
+              allowCall: true,
+              type: Syntax.Property
+            });
+          });
+          if (!multiline) {
+            if (!hasLineTerminator(toSourceNode(fragment).toString())) {
+              result = [
+                '{',
+                space,
+                fragment,
+                space,
+                '}'
+              ];
+              break;
+            }
+          }
+          withIndent(function (indent) {
+            result = [
+              '{',
+              newline,
+              indent,
+              fragment
+            ];
+            if (multiline) {
+              result.push(',' + newline);
+              for (i = 1, len = expr.properties.length; i < len; i += 1) {
+                result.push(indent, generateExpression(expr.properties[i], {
+                  precedence: Precedence.Sequence,
+                  allowIn: true,
+                  allowCall: true,
+                  type: Syntax.Property
+                }));
+                if (i + 1 < len) {
+                  result.push(',' + newline);
+                }
+              }
+            }
+          });
+          if (!endsWithLineTerminator(toSourceNode(result).toString())) {
+            result.push(newline);
+          }
+          result.push(base, '}');
+          break;
+        case Syntax.ObjectPattern:
+          if (!expr.properties.length) {
+            result = '{}';
+            break;
+          }
+          multiline = false;
+          if (expr.properties.length === 1) {
+            property = expr.properties[0];
+            if (property.value.type !== Syntax.Identifier) {
+              multiline = true;
+            }
+          } else {
+            for (i = 0, len = expr.properties.length; i < len; i += 1) {
+              property = expr.properties[i];
+              if (!property.shorthand) {
+                multiline = true;
+                break;
+              }
+            }
+          }
+          result = [
+            '{',
+            multiline ? newline : ''
+          ];
+          withIndent(function (indent) {
+            for (i = 0, len = expr.properties.length; i < len; i += 1) {
+              result.push(multiline ? indent : '', generateExpression(expr.properties[i], {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              }));
+              if (i + 1 < len) {
+                result.push(',' + (multiline ? newline : space));
+              }
+            }
+          });
+          if (multiline && !endsWithLineTerminator(toSourceNode(result).toString())) {
+            result.push(newline);
+          }
+          result.push(multiline ? base : '', '}');
+          break;
+        case Syntax.ThisExpression:
+          result = 'this';
+          break;
+        case Syntax.Identifier:
+          result = generateIdentifier(expr);
+          break;
+        case Syntax.Literal:
+          if (expr.hasOwnProperty('raw') && parse) {
+            try {
+              raw = parse(expr.raw).body[0].expression;
+              if (raw.type === Syntax.Literal) {
+                if (raw.value === expr.value) {
+                  result = expr.raw;
+                  break;
+                }
+              }
+            } catch (e) {
+            }
+          }
+          if (expr.value === null) {
+            result = 'null';
+            break;
+          }
+          if (typeof expr.value === 'string') {
+            result = escapeString(expr.value);
+            break;
+          }
+          if (typeof expr.value === 'number') {
+            result = generateNumber(expr.value);
+            break;
+          }
+          if (typeof expr.value === 'boolean') {
+            result = expr.value ? 'true' : 'false';
+            break;
+          }
+          result = generateRegExp(expr.value);
+          break;
+        case Syntax.ComprehensionExpression:
+          result = [
+            '[',
+            generateExpression(expr.body, {
+              precedence: Precedence.Assignment,
+              allowIn: true,
+              allowCall: true
+            })
+          ];
+          if (expr.blocks) {
+            for (i = 0, len = expr.blocks.length; i < len; i += 1) {
+              fragment = generateExpression(expr.blocks[i], {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              });
+              result = join(result, fragment);
+            }
+          }
+          if (expr.filter) {
+            result = join(result, 'if' + space);
+            fragment = generateExpression(expr.filter, {
+              precedence: Precedence.Sequence,
+              allowIn: true,
+              allowCall: true
+            });
+            if (extra.moz.parenthesizedComprehensionBlock) {
+              result = join(result, [
+                '(',
+                fragment,
+                ')'
+              ]);
+            } else {
+              result = join(result, fragment);
+            }
+          }
+          result.push(']');
+          break;
+        case Syntax.ComprehensionBlock:
+          if (expr.left.type === Syntax.VariableDeclaration) {
+            fragment = [
+              expr.left.kind,
+              noEmptySpace(),
+              generateStatement(expr.left.declarations[0], { allowIn: false })
+            ];
+          } else {
+            fragment = generateExpression(expr.left, {
+              precedence: Precedence.Call,
+              allowIn: true,
+              allowCall: true
+            });
+          }
+          fragment = join(fragment, expr.of ? 'of' : 'in');
+          fragment = join(fragment, generateExpression(expr.right, {
+            precedence: Precedence.Sequence,
+            allowIn: true,
+            allowCall: true
+          }));
+          if (extra.moz.parenthesizedComprehensionBlock) {
+            result = [
+              'for' + space + '(',
+              fragment,
+              ')'
+            ];
+          } else {
+            result = join('for' + space, fragment);
+          }
+          break;
+        default:
+          throw new Error('Unknown expression type: ' + expr.type);
+        }
+        return toSourceNode(result, expr);
+      }
+      function generateStatement(stmt, option) {
+        var i, len, result, node, allowIn, functionBody, directiveContext, fragment, semicolon;
+        allowIn = true;
+        semicolon = ';';
+        functionBody = false;
+        directiveContext = false;
+        if (option) {
+          allowIn = option.allowIn === undefined || option.allowIn;
+          if (!semicolons && option.semicolonOptional === true) {
+            semicolon = '';
+          }
+          functionBody = option.functionBody;
+          directiveContext = option.directiveContext;
+        }
+        switch (stmt.type) {
+        case Syntax.BlockStatement:
+          result = [
+            '{',
+            newline
+          ];
+          withIndent(function () {
+            for (i = 0, len = stmt.body.length; i < len; i += 1) {
+              fragment = addIndent(generateStatement(stmt.body[i], {
+                semicolonOptional: i === len - 1,
+                directiveContext: functionBody
+              }));
+              result.push(fragment);
+              if (!endsWithLineTerminator(toSourceNode(fragment).toString())) {
+                result.push(newline);
+              }
+            }
+          });
+          result.push(addIndent('}'));
+          break;
+        case Syntax.BreakStatement:
+          if (stmt.label) {
+            result = 'break ' + stmt.label.name + semicolon;
+          } else {
+            result = 'break' + semicolon;
+          }
+          break;
+        case Syntax.ContinueStatement:
+          if (stmt.label) {
+            result = 'continue ' + stmt.label.name + semicolon;
+          } else {
+            result = 'continue' + semicolon;
+          }
+          break;
+        case Syntax.DirectiveStatement:
+          if (stmt.raw) {
+            result = stmt.raw + semicolon;
+          } else {
+            result = escapeDirective(stmt.directive) + semicolon;
+          }
+          break;
+        case Syntax.DoWhileStatement:
+          result = join('do', maybeBlock(stmt.body));
+          result = maybeBlockSuffix(stmt.body, result);
+          result = join(result, [
+            'while' + space + '(',
+            generateExpression(stmt.test, {
+              precedence: Precedence.Sequence,
+              allowIn: true,
+              allowCall: true
+            }),
+            ')' + semicolon
+          ]);
+          break;
+        case Syntax.CatchClause:
+          withIndent(function () {
+            result = [
+              'catch' + space + '(',
+              generateExpression(stmt.param, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              }),
+              ')'
+            ];
+          });
+          result.push(maybeBlock(stmt.body));
+          break;
+        case Syntax.DebuggerStatement:
+          result = 'debugger' + semicolon;
+          break;
+        case Syntax.EmptyStatement:
+          result = ';';
+          break;
+        case Syntax.ExpressionStatement:
+          result = [generateExpression(stmt.expression, {
+              precedence: Precedence.Sequence,
+              allowIn: true,
+              allowCall: true
+            })];
+          fragment = toSourceNode(result).toString();
+          if (fragment.charAt(0) === '{' || fragment.slice(0, 8) === 'function' && ' ('.indexOf(fragment.charAt(8)) >= 0 || directive && directiveContext && stmt.expression.type === Syntax.Literal && typeof stmt.expression.value === 'string') {
+            result = [
+              '(',
+              result,
+              ')' + semicolon
+            ];
+          } else {
+            result.push(semicolon);
+          }
+          break;
+        case Syntax.VariableDeclarator:
+          if (stmt.init) {
+            result = [
+              generateExpression(stmt.id, {
+                precedence: Precedence.Assignment,
+                allowIn: allowIn,
+                allowCall: true
+              }),
+              space,
+              '=',
+              space,
+              generateExpression(stmt.init, {
+                precedence: Precedence.Assignment,
+                allowIn: allowIn,
+                allowCall: true
+              })
+            ];
+          } else {
+            result = generateIdentifier(stmt.id);
+          }
+          break;
+        case Syntax.VariableDeclaration:
+          result = [stmt.kind];
+          if (stmt.declarations.length === 1 && stmt.declarations[0].init && stmt.declarations[0].init.type === Syntax.FunctionExpression) {
+            result.push(noEmptySpace(), generateStatement(stmt.declarations[0], { allowIn: allowIn }));
+          } else {
+            withIndent(function () {
+              node = stmt.declarations[0];
+              if (extra.comment && node.leadingComments) {
+                result.push('\n', addIndent(generateStatement(node, { allowIn: allowIn })));
+              } else {
+                result.push(noEmptySpace(), generateStatement(node, { allowIn: allowIn }));
+              }
+              for (i = 1, len = stmt.declarations.length; i < len; i += 1) {
+                node = stmt.declarations[i];
+                if (extra.comment && node.leadingComments) {
+                  result.push(',' + newline, addIndent(generateStatement(node, { allowIn: allowIn })));
+                } else {
+                  result.push(',' + space, generateStatement(node, { allowIn: allowIn }));
+                }
+              }
+            });
+          }
+          result.push(semicolon);
+          break;
+        case Syntax.ThrowStatement:
+          result = [
+            join('throw', generateExpression(stmt.argument, {
+              precedence: Precedence.Sequence,
+              allowIn: true,
+              allowCall: true
+            })),
+            semicolon
+          ];
+          break;
+        case Syntax.TryStatement:
+          result = [
+            'try',
+            maybeBlock(stmt.block)
+          ];
+          result = maybeBlockSuffix(stmt.block, result);
+          if (stmt.handlers) {
+            for (i = 0, len = stmt.handlers.length; i < len; i += 1) {
+              result = join(result, generateStatement(stmt.handlers[i]));
+              if (stmt.finalizer || i + 1 !== len) {
+                result = maybeBlockSuffix(stmt.handlers[i].body, result);
+              }
+            }
+          } else {
+            if (stmt.handler) {
+              result = join(result, generateStatement(stmt.handler));
+              if (stmt.finalizer || stmt.guardedHandlers.length > 0) {
+                result = maybeBlockSuffix(stmt.handler.body, result);
+              }
+            }
+            for (i = 0, len = stmt.guardedHandlers.length; i < len; i += 1) {
+              result = join(result, generateStatement(stmt.guardedHandlers[i]));
+              if (stmt.finalizer || i + 1 !== len) {
+                result = maybeBlockSuffix(stmt.guardedHandlers[i].body, result);
+              }
+            }
+          }
+          if (stmt.finalizer) {
+            result = join(result, [
+              'finally',
+              maybeBlock(stmt.finalizer)
+            ]);
+          }
+          break;
+        case Syntax.SwitchStatement:
+          withIndent(function () {
+            result = [
+              'switch' + space + '(',
+              generateExpression(stmt.discriminant, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              }),
+              ')' + space + '{' + newline
+            ];
+          });
+          if (stmt.cases) {
+            for (i = 0, len = stmt.cases.length; i < len; i += 1) {
+              fragment = addIndent(generateStatement(stmt.cases[i], { semicolonOptional: i === len - 1 }));
+              result.push(fragment);
+              if (!endsWithLineTerminator(toSourceNode(fragment).toString())) {
+                result.push(newline);
+              }
+            }
+          }
+          result.push(addIndent('}'));
+          break;
+        case Syntax.SwitchCase:
+          withIndent(function () {
+            if (stmt.test) {
+              result = [
+                join('case', generateExpression(stmt.test, {
+                  precedence: Precedence.Sequence,
+                  allowIn: true,
+                  allowCall: true
+                })),
+                ':'
+              ];
+            } else {
+              result = ['default:'];
+            }
+            i = 0;
+            len = stmt.consequent.length;
+            if (len && stmt.consequent[0].type === Syntax.BlockStatement) {
+              fragment = maybeBlock(stmt.consequent[0]);
+              result.push(fragment);
+              i = 1;
+            }
+            if (i !== len && !endsWithLineTerminator(toSourceNode(result).toString())) {
+              result.push(newline);
+            }
+            for (; i < len; i += 1) {
+              fragment = addIndent(generateStatement(stmt.consequent[i], { semicolonOptional: i === len - 1 && semicolon === '' }));
+              result.push(fragment);
+              if (i + 1 !== len && !endsWithLineTerminator(toSourceNode(fragment).toString())) {
+                result.push(newline);
+              }
+            }
+          });
+          break;
+        case Syntax.IfStatement:
+          withIndent(function () {
+            result = [
+              'if' + space + '(',
+              generateExpression(stmt.test, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              }),
+              ')'
+            ];
+          });
+          if (stmt.alternate) {
+            result.push(maybeBlock(stmt.consequent));
+            result = maybeBlockSuffix(stmt.consequent, result);
+            if (stmt.alternate.type === Syntax.IfStatement) {
+              result = join(result, [
+                'else ',
+                generateStatement(stmt.alternate, { semicolonOptional: semicolon === '' })
+              ]);
+            } else {
+              result = join(result, join('else', maybeBlock(stmt.alternate, semicolon === '')));
+            }
+          } else {
+            result.push(maybeBlock(stmt.consequent, semicolon === ''));
+          }
+          break;
+        case Syntax.ForStatement:
+          withIndent(function () {
+            result = ['for' + space + '('];
+            if (stmt.init) {
+              if (stmt.init.type === Syntax.VariableDeclaration) {
+                result.push(generateStatement(stmt.init, { allowIn: false }));
+              } else {
+                result.push(generateExpression(stmt.init, {
+                  precedence: Precedence.Sequence,
+                  allowIn: false,
+                  allowCall: true
+                }), ';');
+              }
+            } else {
+              result.push(';');
+            }
+            if (stmt.test) {
+              result.push(space, generateExpression(stmt.test, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              }), ';');
+            } else {
+              result.push(';');
+            }
+            if (stmt.update) {
+              result.push(space, generateExpression(stmt.update, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              }), ')');
+            } else {
+              result.push(')');
+            }
+          });
+          result.push(maybeBlock(stmt.body, semicolon === ''));
+          break;
+        case Syntax.ForInStatement:
+          result = ['for' + space + '('];
+          withIndent(function () {
+            if (stmt.left.type === Syntax.VariableDeclaration) {
+              withIndent(function () {
+                result.push(stmt.left.kind + noEmptySpace(), generateStatement(stmt.left.declarations[0], { allowIn: false }));
+              });
+            } else {
+              result.push(generateExpression(stmt.left, {
+                precedence: Precedence.Call,
+                allowIn: true,
+                allowCall: true
+              }));
+            }
+            result = join(result, 'in');
+            result = [
+              join(result, generateExpression(stmt.right, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              })),
+              ')'
+            ];
+          });
+          result.push(maybeBlock(stmt.body, semicolon === ''));
+          break;
+        case Syntax.LabeledStatement:
+          result = [
+            stmt.label.name + ':',
+            maybeBlock(stmt.body, semicolon === '')
+          ];
+          break;
+        case Syntax.Program:
+          len = stmt.body.length;
+          result = [safeConcatenation && len > 0 ? '\n' : ''];
+          for (i = 0; i < len; i += 1) {
+            fragment = addIndent(generateStatement(stmt.body[i], {
+              semicolonOptional: !safeConcatenation && i === len - 1,
+              directiveContext: true
+            }));
+            result.push(fragment);
+            if (i + 1 < len && !endsWithLineTerminator(toSourceNode(fragment).toString())) {
+              result.push(newline);
+            }
+          }
+          break;
+        case Syntax.FunctionDeclaration:
+          result = [
+            stmt.generator && !extra.moz.starlessGenerator ? 'function* ' : 'function ',
+            generateIdentifier(stmt.id),
+            generateFunctionBody(stmt)
+          ];
+          break;
+        case Syntax.ReturnStatement:
+          if (stmt.argument) {
+            result = [
+              join('return', generateExpression(stmt.argument, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              })),
+              semicolon
+            ];
+          } else {
+            result = ['return' + semicolon];
+          }
+          break;
+        case Syntax.WhileStatement:
+          withIndent(function () {
+            result = [
+              'while' + space + '(',
+              generateExpression(stmt.test, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              }),
+              ')'
+            ];
+          });
+          result.push(maybeBlock(stmt.body, semicolon === ''));
+          break;
+        case Syntax.WithStatement:
+          withIndent(function () {
+            result = [
+              'with' + space + '(',
+              generateExpression(stmt.object, {
+                precedence: Precedence.Sequence,
+                allowIn: true,
+                allowCall: true
+              }),
+              ')'
+            ];
+          });
+          result.push(maybeBlock(stmt.body, semicolon === ''));
+          break;
+        default:
+          throw new Error('Unknown statement type: ' + stmt.type);
+        }
+        if (extra.comment) {
+          result = addCommentsToStatement(stmt, result);
+        }
+        fragment = toSourceNode(result).toString();
+        if (stmt.type === Syntax.Program && !safeConcatenation && newline === '' && fragment.charAt(fragment.length - 1) === '\n') {
+          result = toSourceNode(result).replaceRight(/\s+$/, '');
+        }
+        return toSourceNode(result, stmt);
+      }
+      function generate(node, options) {
+        var defaultOptions = getDefaultOptions(), result, pair;
+        if (options != null) {
+          if (typeof options.indent === 'string') {
+            defaultOptions.format.indent.style = options.indent;
+          }
+          if (typeof options.base === 'number') {
+            defaultOptions.format.indent.base = options.base;
+          }
+          options = updateDeeply(defaultOptions, options);
+          indent = options.format.indent.style;
+          if (typeof options.base === 'string') {
+            base = options.base;
+          } else {
+            base = stringRepeat(indent, options.format.indent.base);
+          }
+        } else {
+          options = defaultOptions;
+          indent = options.format.indent.style;
+          base = stringRepeat(indent, options.format.indent.base);
+        }
+        json = options.format.json;
+        renumber = options.format.renumber;
+        hexadecimal = json ? false : options.format.hexadecimal;
+        quotes = json ? 'double' : options.format.quotes;
+        escapeless = options.format.escapeless;
+        newline = options.format.newline;
+        space = options.format.space;
+        if (options.format.compact) {
+          newline = space = indent = base = '';
+        }
+        parentheses = options.format.parentheses;
+        semicolons = options.format.semicolons;
+        safeConcatenation = options.format.safeConcatenation;
+        directive = options.directive;
+        parse = json ? null : options.parse;
+        sourceMap = options.sourceMap;
+        extra = options;
+        if (sourceMap) {
+          if (!exports.browser) {
+            SourceNode = require('/node_modules/source-map/lib/source-map.js', module).SourceNode;
+          } else {
+            SourceNode = global.sourceMap.SourceNode;
+          }
+        } else {
+          SourceNode = SourceNodeMock;
+        }
+        switch (node.type) {
+        case Syntax.BlockStatement:
+        case Syntax.BreakStatement:
+        case Syntax.CatchClause:
+        case Syntax.ContinueStatement:
+        case Syntax.DirectiveStatement:
+        case Syntax.DoWhileStatement:
+        case Syntax.DebuggerStatement:
+        case Syntax.EmptyStatement:
+        case Syntax.ExpressionStatement:
+        case Syntax.ForStatement:
+        case Syntax.ForInStatement:
+        case Syntax.FunctionDeclaration:
+        case Syntax.IfStatement:
+        case Syntax.LabeledStatement:
+        case Syntax.Program:
+        case Syntax.ReturnStatement:
+        case Syntax.SwitchStatement:
+        case Syntax.SwitchCase:
+        case Syntax.ThrowStatement:
+        case Syntax.TryStatement:
+        case Syntax.VariableDeclaration:
+        case Syntax.VariableDeclarator:
+        case Syntax.WhileStatement:
+        case Syntax.WithStatement:
+          result = generateStatement(node);
+          break;
+        case Syntax.AssignmentExpression:
+        case Syntax.ArrayExpression:
+        case Syntax.ArrayPattern:
+        case Syntax.BinaryExpression:
+        case Syntax.CallExpression:
+        case Syntax.ConditionalExpression:
+        case Syntax.FunctionExpression:
+        case Syntax.Identifier:
+        case Syntax.Literal:
+        case Syntax.LogicalExpression:
+        case Syntax.MemberExpression:
+        case Syntax.NewExpression:
+        case Syntax.ObjectExpression:
+        case Syntax.ObjectPattern:
+        case Syntax.Property:
+        case Syntax.SequenceExpression:
+        case Syntax.ThisExpression:
+        case Syntax.UnaryExpression:
+        case Syntax.UpdateExpression:
+        case Syntax.YieldExpression:
+          result = generateExpression(node, {
+            precedence: Precedence.Sequence,
+            allowIn: true,
+            allowCall: true
+          });
+          break;
+        default:
+          throw new Error('Unknown node type: ' + node.type);
+        }
+        if (!sourceMap) {
+          return result.toString();
+        }
+        pair = result.toStringWithSourceMap({
+          file: options.file,
+          sourceRoot: options.sourceMapRoot
+        });
+        if (options.sourceMapWithCode) {
+          return pair;
+        }
+        return pair.map.toString();
+      }
+      FORMAT_MINIFY = {
+        indent: {
+          style: '',
+          base: 0
+        },
+        renumber: true,
+        hexadecimal: true,
+        quotes: 'auto',
+        escapeless: true,
+        compact: true,
+        parentheses: false,
+        semicolons: false
+      };
+      FORMAT_DEFAULTS = getDefaultOptions().format;
+      exports.version = require('/package.json', module).version;
+      exports.generate = generate;
+      exports.attachComments = estraverse.attachComments;
+      exports.browser = false;
+      exports.FORMAT_MINIFY = FORMAT_MINIFY;
+      exports.FORMAT_DEFAULTS = FORMAT_DEFAULTS;
+    }());
+  });
+  require.define('/package.json', function (module, exports, __dirname, __filename) {
+    module.exports = {
+      'name': 'escodegen',
+      'description': 'ECMAScript code generator',
+      'homepage': 'http://github.com/Constellation/escodegen.html',
+      'main': 'escodegen.js',
+      'bin': {
+        'esgenerate': './bin/esgenerate.js',
+        'escodegen': './bin/escodegen.js'
+      },
+      'version': '0.0.28-dev',
+      'engines': { 'node': '>=0.4.0' },
+      'maintainers': [{
+          'name': 'Yusuke Suzuki',
+          'email': 'utatane.tea@gmail.com',
+          'web': 'http://github.com/Constellation'
+        }],
+      'repository': {
+        'type': 'git',
+        'url': 'http://github.com/Constellation/escodegen.git'
+      },
+      'dependencies': {
+        'esprima': '~1.0.2',
+        'estraverse': '~1.3.0'
+      },
+      'optionalDependencies': { 'source-map': '>= 0.1.2' },
+      'devDependencies': {
+        'esprima-moz': '*',
+        'commonjs-everywhere': '~0.8.0',
+        'q': '*',
+        'bower': '*',
+        'semver': '*',
+        'chai': '~1.7.2',
+        'grunt-contrib-jshint': '~0.5.0',
+        'grunt-cli': '~0.1.9',
+        'grunt': '~0.4.1',
+        'grunt-mocha-test': '~0.6.2'
+      },
+      'licenses': [{
+          'type': 'BSD',
+          'url': 'http://github.com/Constellation/escodegen/raw/master/LICENSE.BSD'
+        }],
+      'scripts': {
+        'test': 'grunt travis',
+        'unit-test': 'grunt test',
+        'lint': 'grunt lint',
+        'release': 'node tools/release.js',
+        'build-min': './node_modules/.bin/cjsify -ma path: tools/entry-point.js > escodegen.browser.min.js',
+        'build': './node_modules/.bin/cjsify -a path: tools/entry-point.js > escodegen.browser.js'
+      }
+    };
+  });
+  require.define('/node_modules/source-map/lib/source-map.js', function (module, exports, __dirname, __filename) {
+    exports.SourceMapGenerator = require('/node_modules/source-map/lib/source-map/source-map-generator.js', module).SourceMapGenerator;
+    exports.SourceMapConsumer = require('/node_modules/source-map/lib/source-map/source-map-consumer.js', module).SourceMapConsumer;
+    exports.SourceNode = require('/node_modules/source-map/lib/source-map/source-node.js', module).SourceNode;
+  });
+  require.define('/node_modules/source-map/lib/source-map/source-node.js', function (module, exports, __dirname, __filename) {
+    if (typeof define !== 'function') {
+      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
+    }
+    define(function (require, exports, module) {
+      var SourceMapGenerator = require('/node_modules/source-map/lib/source-map/source-map-generator.js', module).SourceMapGenerator;
+      var util = require('/node_modules/source-map/lib/source-map/util.js', module);
+      function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
+        this.children = [];
+        this.sourceContents = {};
+        this.line = aLine === undefined ? null : aLine;
+        this.column = aColumn === undefined ? null : aColumn;
+        this.source = aSource === undefined ? null : aSource;
+        this.name = aName === undefined ? null : aName;
+        if (aChunks != null)
+          this.add(aChunks);
+      }
+      SourceNode.fromStringWithSourceMap = function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) {
+        var node = new SourceNode;
+        var remainingLines = aGeneratedCode.split('\n');
+        var lastGeneratedLine = 1, lastGeneratedColumn = 0;
+        var lastMapping = null;
+        aSourceMapConsumer.eachMapping(function (mapping) {
+          if (lastMapping === null) {
+            while (lastGeneratedLine < mapping.generatedLine) {
+              node.add(remainingLines.shift() + '\n');
+              lastGeneratedLine++;
+            }
+            if (lastGeneratedColumn < mapping.generatedColumn) {
+              var nextLine = remainingLines[0];
+              node.add(nextLine.substr(0, mapping.generatedColumn));
+              remainingLines[0] = nextLine.substr(mapping.generatedColumn);
+              lastGeneratedColumn = mapping.generatedColumn;
+            }
+          } else {
+            if (lastGeneratedLine < mapping.generatedLine) {
+              var code = '';
+              do {
+                code += remainingLines.shift() + '\n';
+                lastGeneratedLine++;
+                lastGeneratedColumn = 0;
+              } while (lastGeneratedLine < mapping.generatedLine);
+              if (lastGeneratedColumn < mapping.generatedColumn) {
+                var nextLine = remainingLines[0];
+                code += nextLine.substr(0, mapping.generatedColumn);
+                remainingLines[0] = nextLine.substr(mapping.generatedColumn);
+                lastGeneratedColumn = mapping.generatedColumn;
+              }
+              addMappingWithCode(lastMapping, code);
+            } else {
+              var nextLine = remainingLines[0];
+              var code = nextLine.substr(0, mapping.generatedColumn - lastGeneratedColumn);
+              remainingLines[0] = nextLine.substr(mapping.generatedColumn - lastGeneratedColumn);
+              lastGeneratedColumn = mapping.generatedColumn;
+              addMappingWithCode(lastMapping, code);
+            }
+          }
+          lastMapping = mapping;
+        }, this);
+        addMappingWithCode(lastMapping, remainingLines.join('\n'));
+        aSourceMapConsumer.sources.forEach(function (sourceFile) {
+          var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+          if (content) {
+            node.setSourceContent(sourceFile, content);
+          }
+        });
+        return node;
+        function addMappingWithCode(mapping, code) {
+          if (mapping === null || mapping.source === undefined) {
+            node.add(code);
+          } else {
+            node.add(new SourceNode(mapping.originalLine, mapping.originalColumn, mapping.source, code, mapping.name));
+          }
+        }
+      };
+      SourceNode.prototype.add = function SourceNode_add(aChunk) {
+        if (Array.isArray(aChunk)) {
+          aChunk.forEach(function (chunk) {
+            this.add(chunk);
+          }, this);
+        } else if (aChunk instanceof SourceNode || typeof aChunk === 'string') {
+          if (aChunk) {
+            this.children.push(aChunk);
+          }
+        } else {
+          throw new TypeError('Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' + aChunk);
+        }
+        return this;
+      };
+      SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
+        if (Array.isArray(aChunk)) {
+          for (var i = aChunk.length - 1; i >= 0; i--) {
+            this.prepend(aChunk[i]);
+          }
+        } else if (aChunk instanceof SourceNode || typeof aChunk === 'string') {
+          this.children.unshift(aChunk);
+        } else {
+          throw new TypeError('Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' + aChunk);
+        }
+        return this;
+      };
+      SourceNode.prototype.walk = function SourceNode_walk(aFn) {
+        this.children.forEach(function (chunk) {
+          if (chunk instanceof SourceNode) {
+            chunk.walk(aFn);
+          } else {
+            if (chunk !== '') {
+              aFn(chunk, {
+                source: this.source,
+                line: this.line,
+                column: this.column,
+                name: this.name
+              });
+            }
+          }
+        }, this);
+      };
+      SourceNode.prototype.join = function SourceNode_join(aSep) {
+        var newChildren;
+        var i;
+        var len = this.children.length;
+        if (len > 0) {
+          newChildren = [];
+          for (i = 0; i < len - 1; i++) {
+            newChildren.push(this.children[i]);
+            newChildren.push(aSep);
+          }
+          newChildren.push(this.children[i]);
+          this.children = newChildren;
+        }
+        return this;
+      };
+      SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
+        var lastChild = this.children[this.children.length - 1];
+        if (lastChild instanceof SourceNode) {
+          lastChild.replaceRight(aPattern, aReplacement);
+        } else if (typeof lastChild === 'string') {
+          this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
+        } else {
+          this.children.push(''.replace(aPattern, aReplacement));
+        }
+        return this;
+      };
+      SourceNode.prototype.setSourceContent = function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
+        this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
+      };
+      SourceNode.prototype.walkSourceContents = function SourceNode_walkSourceContents(aFn) {
+        this.children.forEach(function (chunk) {
+          if (chunk instanceof SourceNode) {
+            chunk.walkSourceContents(aFn);
+          }
+        }, this);
+        Object.keys(this.sourceContents).forEach(function (sourceFileKey) {
+          aFn(util.fromSetString(sourceFileKey), this.sourceContents[sourceFileKey]);
+        }, this);
+      };
+      SourceNode.prototype.toString = function SourceNode_toString() {
+        var str = '';
+        this.walk(function (chunk) {
+          str += chunk;
+        });
+        return str;
+      };
+      SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
+        var generated = {
+            code: '',
+            line: 1,
+            column: 0
+          };
+        var map = new SourceMapGenerator(aArgs);
+        var sourceMappingActive = false;
+        var lastOriginalSource = null;
+        var lastOriginalLine = null;
+        var lastOriginalColumn = null;
+        var lastOriginalName = null;
+        this.walk(function (chunk, original) {
+          generated.code += chunk;
+          if (original.source !== null && original.line !== null && original.column !== null) {
+            if (lastOriginalSource !== original.source || lastOriginalLine !== original.line || lastOriginalColumn !== original.column || lastOriginalName !== original.name) {
+              map.addMapping({
+                source: original.source,
+                original: {
+                  line: original.line,
+                  column: original.column
+                },
+                generated: {
+                  line: generated.line,
+                  column: generated.column
+                },
+                name: original.name
+              });
+            }
+            lastOriginalSource = original.source;
+            lastOriginalLine = original.line;
+            lastOriginalColumn = original.column;
+            lastOriginalName = original.name;
+            sourceMappingActive = true;
+          } else if (sourceMappingActive) {
+            map.addMapping({
+              generated: {
+                line: generated.line,
+                column: generated.column
+              }
+            });
+            lastOriginalSource = null;
+            sourceMappingActive = false;
+          }
+          chunk.split('').forEach(function (ch) {
+            if (ch === '\n') {
+              generated.line++;
+              generated.column = 0;
+            } else {
+              generated.column++;
+            }
+          });
+        });
+        this.walkSourceContents(function (sourceFile, sourceContent) {
+          map.setSourceContent(sourceFile, sourceContent);
+        });
+        return {
+          code: generated.code,
+          map: map
+        };
+      };
+      exports.SourceNode = SourceNode;
+    });
+  });
+  require.define('/node_modules/source-map/lib/source-map/util.js', function (module, exports, __dirname, __filename) {
+    if (typeof define !== 'function') {
+      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
+    }
+    define(function (require, exports, module) {
+      function getArg(aArgs, aName, aDefaultValue) {
+        if (aName in aArgs) {
+          return aArgs[aName];
+        } else if (arguments.length === 3) {
+          return aDefaultValue;
+        } else {
+          throw new Error('"' + aName + '" is a required argument.');
+        }
+      }
+      exports.getArg = getArg;
+      var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/;
+      function urlParse(aUrl) {
+        var match = aUrl.match(urlRegexp);
+        if (!match) {
+          return null;
+        }
+        return {
+          scheme: match[1],
+          auth: match[3],
+          host: match[4],
+          port: match[6],
+          path: match[7]
+        };
+      }
+      exports.urlParse = urlParse;
+      function urlGenerate(aParsedUrl) {
+        var url = aParsedUrl.scheme + '://';
+        if (aParsedUrl.auth) {
+          url += aParsedUrl.auth + '@';
+        }
+        if (aParsedUrl.host) {
+          url += aParsedUrl.host;
+        }
+        if (aParsedUrl.port) {
+          url += ':' + aParsedUrl.port;
+        }
+        if (aParsedUrl.path) {
+          url += aParsedUrl.path;
+        }
+        return url;
+      }
+      exports.urlGenerate = urlGenerate;
+      function join(aRoot, aPath) {
+        var url;
+        if (aPath.match(urlRegexp)) {
+          return aPath;
+        }
+        if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) {
+          url.path = aPath;
+          return urlGenerate(url);
+        }
+        return aRoot.replace(/\/$/, '') + '/' + aPath;
+      }
+      exports.join = join;
+      function toSetString(aStr) {
+        return '$' + aStr;
+      }
+      exports.toSetString = toSetString;
+      function fromSetString(aStr) {
+        return aStr.substr(1);
+      }
+      exports.fromSetString = fromSetString;
+      function relative(aRoot, aPath) {
+        aRoot = aRoot.replace(/\/$/, '');
+        var url = urlParse(aRoot);
+        if (aPath.charAt(0) == '/' && url && url.path == '/') {
+          return aPath.slice(1);
+        }
+        return aPath.indexOf(aRoot + '/') === 0 ? aPath.substr(aRoot.length + 1) : aPath;
+      }
+      exports.relative = relative;
+    });
+  });
+  require.define('/node_modules/source-map/node_modules/amdefine/amdefine.js', function (module, exports, __dirname, __filename) {
+    'use strict';
+    function amdefine(module, requireFn) {
+      'use strict';
+      var defineCache = {}, loaderCache = {}, alreadyCalled = false, path = require('path', module), makeRequire, stringRequire;
+      function trimDots(ary) {
+        var i, part;
+        for (i = 0; ary[i]; i += 1) {
+          part = ary[i];
+          if (part === '.') {
+            ary.splice(i, 1);
+            i -= 1;
+          } else if (part === '..') {
+            if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {
+              break;
+            } else if (i > 0) {
+              ary.splice(i - 1, 2);
+              i -= 2;
+            }
+          }
+        }
+      }
+      function normalize(name, baseName) {
+        var baseParts;
+        if (name && name.charAt(0) === '.') {
+          if (baseName) {
+            baseParts = baseName.split('/');
+            baseParts = baseParts.slice(0, baseParts.length - 1);
+            baseParts = baseParts.concat(name.split('/'));
+            trimDots(baseParts);
+            name = baseParts.join('/');
+          }
+        }
+        return name;
+      }
+      function makeNormalize(relName) {
+        return function (name) {
+          return normalize(name, relName);
+        };
+      }
+      function makeLoad(id) {
+        function load(value) {
+          loaderCache[id] = value;
+        }
+        load.fromText = function (id, text) {
+          throw new Error('amdefine does not implement load.fromText');
+        };
+        return load;
+      }
+      makeRequire = function (systemRequire, exports, module, relId) {
+        function amdRequire(deps, callback) {
+          if (typeof deps === 'string') {
+            return stringRequire(systemRequire, exports, module, deps, relId);
+          } else {
+            deps = deps.map(function (depName) {
+              return stringRequire(systemRequire, exports, module, depName, relId);
+            });
+            process.nextTick(function () {
+              callback.apply(null, deps);
+            });
+          }
+        }
+        amdRequire.toUrl = function (filePath) {
+          if (filePath.indexOf('.') === 0) {
+            return normalize(filePath, path.dirname(module.filename));
+          } else {
+            return filePath;
+          }
+        };
+        return amdRequire;
+      };
+      requireFn = requireFn || function req() {
+        return module.require.apply(module, arguments);
+      };
+      function runFactory(id, deps, factory) {
+        var r, e, m, result;
+        if (id) {
+          e = loaderCache[id] = {};
+          m = {
+            id: id,
+            uri: __filename,
+            exports: e
+          };
+          r = makeRequire(requireFn, e, m, id);
+        } else {
+          if (alreadyCalled) {
+            throw new Error('amdefine with no module ID cannot be called more than once per file.');
+          }
+          alreadyCalled = true;
+          e = module.exports;
+          m = module;
+          r = makeRequire(requireFn, e, m, module.id);
+        }
+        if (deps) {
+          deps = deps.map(function (depName) {
+            return r(depName);
+          });
+        }
+        if (typeof factory === 'function') {
+          result = factory.apply(m.exports, deps);
+        } else {
+          result = factory;
+        }
+        if (result !== undefined) {
+          m.exports = result;
+          if (id) {
+            loaderCache[id] = m.exports;
+          }
+        }
+      }
+      stringRequire = function (systemRequire, exports, module, id, relId) {
+        var index = id.indexOf('!'), originalId = id, prefix, plugin;
+        if (index === -1) {
+          id = normalize(id, relId);
+          if (id === 'require') {
+            return makeRequire(systemRequire, exports, module, relId);
+          } else if (id === 'exports') {
+            return exports;
+          } else if (id === 'module') {
+            return module;
+          } else if (loaderCache.hasOwnProperty(id)) {
+            return loaderCache[id];
+          } else if (defineCache[id]) {
+            runFactory.apply(null, defineCache[id]);
+            return loaderCache[id];
+          } else {
+            if (systemRequire) {
+              return systemRequire(originalId);
+            } else {
+              throw new Error('No module with ID: ' + id);
+            }
+          }
+        } else {
+          prefix = id.substring(0, index);
+          id = id.substring(index + 1, id.length);
+          plugin = stringRequire(systemRequire, exports, module, prefix, relId);
+          if (plugin.normalize) {
+            id = plugin.normalize(id, makeNormalize(relId));
+          } else {
+            id = normalize(id, relId);
+          }
+          if (loaderCache[id]) {
+            return loaderCache[id];
+          } else {
+            plugin.load(id, makeRequire(systemRequire, exports, module, relId), makeLoad(id), {});
+            return loaderCache[id];
+          }
+        }
+      };
+      function define(id, deps, factory) {
+        if (Array.isArray(id)) {
+          factory = deps;
+          deps = id;
+          id = undefined;
+        } else if (typeof id !== 'string') {
+          factory = id;
+          id = deps = undefined;
+        }
+        if (deps && !Array.isArray(deps)) {
+          factory = deps;
+          deps = undefined;
+        }
+        if (!deps) {
+          deps = [
+            'require',
+            'exports',
+            'module'
+          ];
+        }
+        if (id) {
+          defineCache[id] = [
+            id,
+            deps,
+            factory
+          ];
+        } else {
+          runFactory(id, deps, factory);
+        }
+      }
+      define.require = function (id) {
+        if (loaderCache[id]) {
+          return loaderCache[id];
+        }
+        if (defineCache[id]) {
+          runFactory.apply(null, defineCache[id]);
+          return loaderCache[id];
+        }
+      };
+      define.amd = {};
+      return define;
+    }
+    module.exports = amdefine;
+  });
+  require.define('/node_modules/source-map/lib/source-map/source-map-generator.js', function (module, exports, __dirname, __filename) {
+    if (typeof define !== 'function') {
+      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
+    }
+    define(function (require, exports, module) {
+      var base64VLQ = require('/node_modules/source-map/lib/source-map/base64-vlq.js', module);
+      var util = require('/node_modules/source-map/lib/source-map/util.js', module);
+      var ArraySet = require('/node_modules/source-map/lib/source-map/array-set.js', module).ArraySet;
+      function SourceMapGenerator(aArgs) {
+        this._file = util.getArg(aArgs, 'file');
+        this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
+        this._sources = new ArraySet;
+        this._names = new ArraySet;
+        this._mappings = [];
+        this._sourcesContents = null;
+      }
+      SourceMapGenerator.prototype._version = 3;
+      SourceMapGenerator.fromSourceMap = function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
+        var sourceRoot = aSourceMapConsumer.sourceRoot;
+        var generator = new SourceMapGenerator({
+            file: aSourceMapConsumer.file,
+            sourceRoot: sourceRoot
+          });
+        aSourceMapConsumer.eachMapping(function (mapping) {
+          var newMapping = {
+              generated: {
+                line: mapping.generatedLine,
+                column: mapping.generatedColumn
+              }
+            };
+          if (mapping.source) {
+            newMapping.source = mapping.source;
+            if (sourceRoot) {
+              newMapping.source = util.relative(sourceRoot, newMapping.source);
+            }
+            newMapping.original = {
+              line: mapping.originalLine,
+              column: mapping.originalColumn
+            };
+            if (mapping.name) {
+              newMapping.name = mapping.name;
+            }
+          }
+          generator.addMapping(newMapping);
+        });
+        aSourceMapConsumer.sources.forEach(function (sourceFile) {
+          var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+          if (content) {
+            generator.setSourceContent(sourceFile, content);
+          }
+        });
+        return generator;
+      };
+      SourceMapGenerator.prototype.addMapping = function SourceMapGenerator_addMapping(aArgs) {
+        var generated = util.getArg(aArgs, 'generated');
+        var original = util.getArg(aArgs, 'original', null);
+        var source = util.getArg(aArgs, 'source', null);
+        var name = util.getArg(aArgs, 'name', null);
+        this._validateMapping(generated, original, source, name);
+        if (source && !this._sources.has(source)) {
+          this._sources.add(source);
+        }
+        if (name && !this._names.has(name)) {
+          this._names.add(name);
+        }
+        this._mappings.push({
+          generated: generated,
+          original: original,
+          source: source,
+          name: name
+        });
+      };
+      SourceMapGenerator.prototype.setSourceContent = function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
+        var source = aSourceFile;
+        if (this._sourceRoot) {
+          source = util.relative(this._sourceRoot, source);
+        }
+        if (aSourceContent !== null) {
+          if (!this._sourcesContents) {
+            this._sourcesContents = {};
+          }
+          this._sourcesContents[util.toSetString(source)] = aSourceContent;
+        } else {
+          delete this._sourcesContents[util.toSetString(source)];
+          if (Object.keys(this._sourcesContents).length === 0) {
+            this._sourcesContents = null;
+          }
+        }
+      };
+      SourceMapGenerator.prototype.applySourceMap = function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) {
+        if (!aSourceFile) {
+          aSourceFile = aSourceMapConsumer.file;
+        }
+        var sourceRoot = this._sourceRoot;
+        if (sourceRoot) {
+          aSourceFile = util.relative(sourceRoot, aSourceFile);
+        }
+        var newSources = new ArraySet;
+        var newNames = new ArraySet;
+        this._mappings.forEach(function (mapping) {
+          if (mapping.source === aSourceFile && mapping.original) {
+            var original = aSourceMapConsumer.originalPositionFor({
+                line: mapping.original.line,
+                column: mapping.original.column
+              });
+            if (original.source !== null) {
+              if (sourceRoot) {
+                mapping.source = util.relative(sourceRoot, original.source);
+              } else {
+                mapping.source = original.source;
+              }
+              mapping.original.line = original.line;
+              mapping.original.column = original.column;
+              if (original.name !== null && mapping.name !== null) {
+                mapping.name = original.name;
+              }
+            }
+          }
+          var source = mapping.source;
+          if (source && !newSources.has(source)) {
+            newSources.add(source);
+          }
+          var name = mapping.name;
+          if (name && !newNames.has(name)) {
+            newNames.add(name);
+          }
+        }, this);
+        this._sources = newSources;
+        this._names = newNames;
+        aSourceMapConsumer.sources.forEach(function (sourceFile) {
+          var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+          if (content) {
+            if (sourceRoot) {
+              sourceFile = util.relative(sourceRoot, sourceFile);
+            }
+            this.setSourceContent(sourceFile, content);
+          }
+        }, this);
+      };
+      SourceMapGenerator.prototype._validateMapping = function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, aName) {
+        if (aGenerated && 'line' in aGenerated && 'column' in aGenerated && aGenerated.line > 0 && aGenerated.column >= 0 && !aOriginal && !aSource && !aName) {
+          return;
+        } else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated && aOriginal && 'line' in aOriginal && 'column' in aOriginal && aGenerated.line > 0 && aGenerated.column >= 0 && aOriginal.line > 0 && aOriginal.column >= 0 && aSource) {
+          return;
+        } else {
+          throw new Error('Invalid mapping.');
+        }
+      };
+      function cmpLocation(loc1, loc2) {
+        var cmp = (loc1 && loc1.line) - (loc2 && loc2.line);
+        return cmp ? cmp : (loc1 && loc1.column) - (loc2 && loc2.column);
+      }
+      function strcmp(str1, str2) {
+        str1 = str1 || '';
+        str2 = str2 || '';
+        return (str1 > str2) - (str1 < str2);
+      }
+      function cmpMapping(mappingA, mappingB) {
+        return cmpLocation(mappingA.generated, mappingB.generated) || cmpLocation(mappingA.original, mappingB.original) || strcmp(mappingA.source, mappingB.source) || strcmp(mappingA.name, mappingB.name);
+      }
+      SourceMapGenerator.prototype._serializeMappings = function SourceMapGenerator_serializeMappings() {
+        var previousGeneratedColumn = 0;
+        var previousGeneratedLine = 1;
+        var previousOriginalColumn = 0;
+        var previousOriginalLine = 0;
+        var previousName = 0;
+        var previousSource = 0;
+        var result = '';
+        var mapping;
+        this._mappings.sort(cmpMapping);
+        for (var i = 0, len = this._mappings.length; i < len; i++) {
+          mapping = this._mappings[i];
+          if (mapping.generated.line !== previousGeneratedLine) {
+            previousGeneratedColumn = 0;
+            while (mapping.generated.line !== previousGeneratedLine) {
+              result += ';';
+              previousGeneratedLine++;
+            }
+          } else {
+            if (i > 0) {
+              if (!cmpMapping(mapping, this._mappings[i - 1])) {
+                continue;
+              }
+              result += ',';
+            }
+          }
+          result += base64VLQ.encode(mapping.generated.column - previousGeneratedColumn);
+          previousGeneratedColumn = mapping.generated.column;
+          if (mapping.source && mapping.original) {
+            result += base64VLQ.encode(this._sources.indexOf(mapping.source) - previousSource);
+            previousSource = this._sources.indexOf(mapping.source);
+            result += base64VLQ.encode(mapping.original.line - 1 - previousOriginalLine);
+            previousOriginalLine = mapping.original.line - 1;
+            result += base64VLQ.encode(mapping.original.column - previousOriginalColumn);
+            previousOriginalColumn = mapping.original.column;
+            if (mapping.name) {
+              result += base64VLQ.encode(this._names.indexOf(mapping.name) - previousName);
+              previousName = this._names.indexOf(mapping.name);
+            }
+          }
+        }
+        return result;
+      };
+      SourceMapGenerator.prototype.toJSON = function SourceMapGenerator_toJSON() {
+        var map = {
+            version: this._version,
+            file: this._file,
+            sources: this._sources.toArray(),
+            names: this._names.toArray(),
+            mappings: this._serializeMappings()
+          };
+        if (this._sourceRoot) {
+          map.sourceRoot = this._sourceRoot;
+        }
+        if (this._sourcesContents) {
+          map.sourcesContent = map.sources.map(function (source) {
+            if (map.sourceRoot) {
+              source = util.relative(map.sourceRoot, source);
+            }
+            return Object.prototype.hasOwnProperty.call(this._sourcesContents, util.toSetString(source)) ? this._sourcesContents[util.toSetString(source)] : null;
+          }, this);
+        }
+        return map;
+      };
+      SourceMapGenerator.prototype.toString = function SourceMapGenerator_toString() {
+        return JSON.stringify(this);
+      };
+      exports.SourceMapGenerator = SourceMapGenerator;
+    });
+  });
+  require.define('/node_modules/source-map/lib/source-map/array-set.js', function (module, exports, __dirname, __filename) {
+    if (typeof define !== 'function') {
+      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
+    }
+    define(function (require, exports, module) {
+      var util = require('/node_modules/source-map/lib/source-map/util.js', module);
+      function ArraySet() {
+        this._array = [];
+        this._set = {};
+      }
+      ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
+        var set = new ArraySet;
+        for (var i = 0, len = aArray.length; i < len; i++) {
+          set.add(aArray[i], aAllowDuplicates);
+        }
+        return set;
+      };
+      ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
+        var isDuplicate = this.has(aStr);
+        var idx = this._array.length;
+        if (!isDuplicate || aAllowDuplicates) {
+          this._array.push(aStr);
+        }
+        if (!isDuplicate) {
+          this._set[util.toSetString(aStr)] = idx;
+        }
+      };
+      ArraySet.prototype.has = function ArraySet_has(aStr) {
+        return Object.prototype.hasOwnProperty.call(this._set, util.toSetString(aStr));
+      };
+      ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
+        if (this.has(aStr)) {
+          return this._set[util.toSetString(aStr)];
+        }
+        throw new Error('"' + aStr + '" is not in the set.');
+      };
+      ArraySet.prototype.at = function ArraySet_at(aIdx) {
+        if (aIdx >= 0 && aIdx < this._array.length) {
+          return this._array[aIdx];
+        }
+        throw new Error('No element indexed by ' + aIdx);
+      };
+      ArraySet.prototype.toArray = function ArraySet_toArray() {
+        return this._array.slice();
+      };
+      exports.ArraySet = ArraySet;
+    });
+  });
+  require.define('/node_modules/source-map/lib/source-map/base64-vlq.js', function (module, exports, __dirname, __filename) {
+    if (typeof define !== 'function') {
+      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
+    }
+    define(function (require, exports, module) {
+      var base64 = require('/node_modules/source-map/lib/source-map/base64.js', module);
+      var VLQ_BASE_SHIFT = 5;
+      var VLQ_BASE = 1 << VLQ_BASE_SHIFT;
+      var VLQ_BASE_MASK = VLQ_BASE - 1;
+      var VLQ_CONTINUATION_BIT = VLQ_BASE;
+      function toVLQSigned(aValue) {
+        return aValue < 0 ? (-aValue << 1) + 1 : (aValue << 1) + 0;
+      }
+      function fromVLQSigned(aValue) {
+        var isNegative = (aValue & 1) === 1;
+        var shifted = aValue >> 1;
+        return isNegative ? -shifted : shifted;
+      }
+      exports.encode = function base64VLQ_encode(aValue) {
+        var encoded = '';
+        var digit;
+        var vlq = toVLQSigned(aValue);
+        do {
+          digit = vlq & VLQ_BASE_MASK;
+          vlq >>>= VLQ_BASE_SHIFT;
+          if (vlq > 0) {
+            digit |= VLQ_CONTINUATION_BIT;
+          }
+          encoded += base64.encode(digit);
+        } while (vlq > 0);
+        return encoded;
+      };
+      exports.decode = function base64VLQ_decode(aStr) {
+        var i = 0;
+        var strLen = aStr.length;
+        var result = 0;
+        var shift = 0;
+        var continuation, digit;
+        do {
+          if (i >= strLen) {
+            throw new Error('Expected more digits in base 64 VLQ value.');
+          }
+          digit = base64.decode(aStr.charAt(i++));
+          continuation = !!(digit & VLQ_CONTINUATION_BIT);
+          digit &= VLQ_BASE_MASK;
+          result = result + (digit << shift);
+          shift += VLQ_BASE_SHIFT;
+        } while (continuation);
+        return {
+          value: fromVLQSigned(result),
+          rest: aStr.slice(i)
+        };
+      };
+    });
+  });
+  require.define('/node_modules/source-map/lib/source-map/base64.js', function (module, exports, __dirname, __filename) {
+    if (typeof define !== 'function') {
+      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
+    }
+    define(function (require, exports, module) {
+      var charToIntMap = {};
+      var intToCharMap = {};
+      'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('').forEach(function (ch, index) {
+        charToIntMap[ch] = index;
+        intToCharMap[index] = ch;
+      });
+      exports.encode = function base64_encode(aNumber) {
+        if (aNumber in intToCharMap) {
+          return intToCharMap[aNumber];
+        }
+        throw new TypeError('Must be between 0 and 63: ' + aNumber);
+      };
+      exports.decode = function base64_decode(aChar) {
+        if (aChar in charToIntMap) {
+          return charToIntMap[aChar];
+        }
+        throw new TypeError('Not a valid base 64 digit: ' + aChar);
+      };
+    });
+  });
+  require.define('/node_modules/source-map/lib/source-map/source-map-consumer.js', function (module, exports, __dirname, __filename) {
+    if (typeof define !== 'function') {
+      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
+    }
+    define(function (require, exports, module) {
+      var util = require('/node_modules/source-map/lib/source-map/util.js', module);
+      var binarySearch = require('/node_modules/source-map/lib/source-map/binary-search.js', module);
+      var ArraySet = require('/node_modules/source-map/lib/source-map/array-set.js', module).ArraySet;
+      var base64VLQ = require('/node_modules/source-map/lib/source-map/base64-vlq.js', module);
+      function SourceMapConsumer(aSourceMap) {
+        var sourceMap = aSourceMap;
+        if (typeof aSourceMap === 'string') {
+          sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
+        }
+        var version = util.getArg(sourceMap, 'version');
+        var sources = util.getArg(sourceMap, 'sources');
+        var names = util.getArg(sourceMap, 'names');
+        var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
+        var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
+        var mappings = util.getArg(sourceMap, 'mappings');
+        var file = util.getArg(sourceMap, 'file', null);
+        if (version !== this._version) {
+          throw new Error('Unsupported version: ' + version);
+        }
+        this._names = ArraySet.fromArray(names, true);
+        this._sources = ArraySet.fromArray(sources, true);
+        this.sourceRoot = sourceRoot;
+        this.sourcesContent = sourcesContent;
+        this.file = file;
+        this._generatedMappings = [];
+        this._originalMappings = [];
+        this._parseMappings(mappings, sourceRoot);
+      }
+      SourceMapConsumer.prototype._version = 3;
+      Object.defineProperty(SourceMapConsumer.prototype, 'sources', {
+        get: function () {
+          return this._sources.toArray().map(function (s) {
+            return this.sourceRoot ? util.join(this.sourceRoot, s) : s;
+          }, this);
+        }
+      });
+      SourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
+        var generatedLine = 1;
+        var previousGeneratedColumn = 0;
+        var previousOriginalLine = 0;
+        var previousOriginalColumn = 0;
+        var previousSource = 0;
+        var previousName = 0;
+        var mappingSeparator = /^[,;]/;
+        var str = aStr;
+        var mapping;
+        var temp;
+        while (str.length > 0) {
+          if (str.charAt(0) === ';') {
+            generatedLine++;
+            str = str.slice(1);
+            previousGeneratedColumn = 0;
+          } else if (str.charAt(0) === ',') {
+            str = str.slice(1);
+          } else {
+            mapping = {};
+            mapping.generatedLine = generatedLine;
+            temp = base64VLQ.decode(str);
+            mapping.generatedColumn = previousGeneratedColumn + temp.value;
+            previousGeneratedColumn = mapping.generatedColumn;
+            str = temp.rest;
+            if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {
+              temp = base64VLQ.decode(str);
+              mapping.source = this._sources.at(previousSource + temp.value);
+              previousSource += temp.value;
+              str = temp.rest;
+              if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {
+                throw new Error('Found a source, but no line and column');
+              }
+              temp = base64VLQ.decode(str);
+              mapping.originalLine = previousOriginalLine + temp.value;
+              previousOriginalLine = mapping.originalLine;
+              mapping.originalLine += 1;
+              str = temp.rest;
+              if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {
+                throw new Error('Found a source and line, but no column');
+              }
+              temp = base64VLQ.decode(str);
+              mapping.originalColumn = previousOriginalColumn + temp.value;
+              previousOriginalColumn = mapping.originalColumn;
+              str = temp.rest;
+              if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {
+                temp = base64VLQ.decode(str);
+                mapping.name = this._names.at(previousName + temp.value);
+                previousName += temp.value;
+                str = temp.rest;
+              }
+            }
+            this._generatedMappings.push(mapping);
+            if (typeof mapping.originalLine === 'number') {
+              this._originalMappings.push(mapping);
+            }
+          }
+        }
+        this._originalMappings.sort(this._compareOriginalPositions);
+      };
+      SourceMapConsumer.prototype._compareOriginalPositions = function SourceMapConsumer_compareOriginalPositions(mappingA, mappingB) {
+        if (mappingA.source > mappingB.source) {
+          return 1;
+        } else if (mappingA.source < mappingB.source) {
+          return -1;
+        } else {
+          var cmp = mappingA.originalLine - mappingB.originalLine;
+          return cmp === 0 ? mappingA.originalColumn - mappingB.originalColumn : cmp;
+        }
+      };
+      SourceMapConsumer.prototype._compareGeneratedPositions = function SourceMapConsumer_compareGeneratedPositions(mappingA, mappingB) {
+        var cmp = mappingA.generatedLine - mappingB.generatedLine;
+        return cmp === 0 ? mappingA.generatedColumn - mappingB.generatedColumn : cmp;
+      };
+      SourceMapConsumer.prototype._findMapping = function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, aColumnName, aComparator) {
+        if (aNeedle[aLineName] <= 0) {
+          throw new TypeError('Line must be greater than or equal to 1, got ' + aNeedle[aLineName]);
+        }
+        if (aNeedle[aColumnName] < 0) {
+          throw new TypeError('Column must be greater than or equal to 0, got ' + aNeedle[aColumnName]);
+        }
+        return binarySearch.search(aNeedle, aMappings, aComparator);
+      };
+      SourceMapConsumer.prototype.originalPositionFor = function SourceMapConsumer_originalPositionFor(aArgs) {
+        var needle = {
+            generatedLine: util.getArg(aArgs, 'line'),
+            generatedColumn: util.getArg(aArgs, 'column')
+          };
+        var mapping = this._findMapping(needle, this._generatedMappings, 'generatedLine', 'generatedColumn', this._compareGeneratedPositions);
+        if (mapping) {
+          var source = util.getArg(mapping, 'source', null);
+          if (source && this.sourceRoot) {
+            source = util.join(this.sourceRoot, source);
+          }
+          return {
+            source: source,
+            line: util.getArg(mapping, 'originalLine', null),
+            column: util.getArg(mapping, 'originalColumn', null),
+            name: util.getArg(mapping, 'name', null)
+          };
+        }
+        return {
+          source: null,
+          line: null,
+          column: null,
+          name: null
+        };
+      };
+      SourceMapConsumer.prototype.sourceContentFor = function SourceMapConsumer_sourceContentFor(aSource) {
+        if (!this.sourcesContent) {
+          return null;
+        }
+        if (this.sourceRoot) {
+          aSource = util.relative(this.sourceRoot, aSource);
+        }
+        if (this._sources.has(aSource)) {
+          return this.sourcesContent[this._sources.indexOf(aSource)];
+        }
+        var url;
+        if (this.sourceRoot && (url = util.urlParse(this.sourceRoot))) {
+          var fileUriAbsPath = aSource.replace(/^file:\/\//, '');
+          if (url.scheme == 'file' && this._sources.has(fileUriAbsPath)) {
+            return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)];
+          }
+          if ((!url.path || url.path == '/') && this._sources.has('/' + aSource)) {
+            return this.sourcesContent[this._sources.indexOf('/' + aSource)];
+          }
+        }
+        throw new Error('"' + aSource + '" is not in the SourceMap.');
+      };
+      SourceMapConsumer.prototype.generatedPositionFor = function SourceMapConsumer_generatedPositionFor(aArgs) {
+        var needle = {
+            source: util.getArg(aArgs, 'source'),
+            originalLine: util.getArg(aArgs, 'line'),
+            originalColumn: util.getArg(aArgs, 'column')
+          };
+        if (this.sourceRoot) {
+          needle.source = util.relative(this.sourceRoot, needle.source);
+        }
+        var mapping = this._findMapping(needle, this._originalMappings, 'originalLine', 'originalColumn', this._compareOriginalPositions);
+        if (mapping) {
+          return {
+            line: util.getArg(mapping, 'generatedLine', null),
+            column: util.getArg(mapping, 'generatedColumn', null)
+          };
+        }
+        return {
+          line: null,
+          column: null
+        };
+      };
+      SourceMapConsumer.GENERATED_ORDER = 1;
+      SourceMapConsumer.ORIGINAL_ORDER = 2;
+      SourceMapConsumer.prototype.eachMapping = function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
+        var context = aContext || null;
+        var order = aOrder || SourceMapConsumer.GENERATED_ORDER;
+        var mappings;
+        switch (order) {
+        case SourceMapConsumer.GENERATED_ORDER:
+          mappings = this._generatedMappings;
+          break;
+        case SourceMapConsumer.ORIGINAL_ORDER:
+          mappings = this._originalMappings;
+          break;
+        default:
+          throw new Error('Unknown order of iteration.');
+        }
+        var sourceRoot = this.sourceRoot;
+        mappings.map(function (mapping) {
+          var source = mapping.source;
+          if (source && sourceRoot) {
+            source = util.join(sourceRoot, source);
+          }
+          return {
+            source: source,
+            generatedLine: mapping.generatedLine,
+            generatedColumn: mapping.generatedColumn,
+            originalLine: mapping.originalLine,
+            originalColumn: mapping.originalColumn,
+            name: mapping.name
+          };
+        }).forEach(aCallback, context);
+      };
+      exports.SourceMapConsumer = SourceMapConsumer;
+    });
+  });
+  require.define('/node_modules/source-map/lib/source-map/binary-search.js', function (module, exports, __dirname, __filename) {
+    if (typeof define !== 'function') {
+      var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
+    }
+    define(function (require, exports, module) {
+      function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) {
+        var mid = Math.floor((aHigh - aLow) / 2) + aLow;
+        var cmp = aCompare(aNeedle, aHaystack[mid]);
+        if (cmp === 0) {
+          return aHaystack[mid];
+        } else if (cmp > 0) {
+          if (aHigh - mid > 1) {
+            return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare);
+          }
+          return aHaystack[mid];
+        } else {
+          if (mid - aLow > 1) {
+            return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare);
+          }
+          return aLow < 0 ? null : aHaystack[aLow];
+        }
+      }
+      exports.search = function search(aNeedle, aHaystack, aCompare) {
+        return aHaystack.length > 0 ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) : null;
+      };
+    });
+  });
+  require.define('/node_modules/estraverse/estraverse.js', function (module, exports, __dirname, __filename) {
+    (function (root, factory) {
+      'use strict';
+      if (typeof define === 'function' && define.amd) {
+        define(['exports'], factory);
+      } else if (typeof exports !== 'undefined') {
+        factory(exports);
+      } else {
+        factory(root.estraverse = {});
+      }
+    }(this, function (exports) {
+      'use strict';
+      var Syntax, isArray, VisitorOption, VisitorKeys, BREAK, SKIP;
+      Syntax = {
+        AssignmentExpression: 'AssignmentExpression',
+        ArrayExpression: 'ArrayExpression',
+        ArrowFunctionExpression: 'ArrowFunctionExpression',
+        BlockStatement: 'BlockStatement',
+        BinaryExpression: 'BinaryExpression',
+        BreakStatement: 'BreakStatement',
+        CallExpression: 'CallExpression',
+        CatchClause: 'CatchClause',
+        ConditionalExpression: 'ConditionalExpression',
+        ContinueStatement: 'ContinueStatement',
+        DebuggerStatement: 'DebuggerStatement',
+        DirectiveStatement: 'DirectiveStatement',
+        DoWhileStatement: 'DoWhileStatement',
+        EmptyStatement: 'EmptyStatement',
+        ExpressionStatement: 'ExpressionStatement',
+        ForStatement: 'ForStatement',
+        ForInStatement: 'ForInStatement',
+        FunctionDeclaration: 'FunctionDeclaration',
+        FunctionExpression: 'FunctionExpression',
+        Identifier: 'Identifier',
+        IfStatement: 'IfStatement',
+        Literal: 'Literal',
+        LabeledStatement: 'LabeledStatement',
+        LogicalExpression: 'LogicalExpression',
+        MemberExpression: 'MemberExpression',
+        NewExpression: 'NewExpression',
+        ObjectExpression: 'ObjectExpression',
+        Program: 'Program',
+        Property: 'Property',
+        ReturnStatement: 'ReturnStatement',
+        SequenceExpression: 'SequenceExpression',
+        SwitchStatement: 'SwitchStatement',
+        SwitchCase: 'SwitchCase',
+        ThisExpression: 'ThisExpression',
+        ThrowStatement: 'ThrowStatement',
+        TryStatement: 'TryStatement',
+        UnaryExpression: 'UnaryExpression',
+        UpdateExpression: 'UpdateExpression',
+        VariableDeclaration: 'VariableDeclaration',
+        VariableDeclarator: 'VariableDeclarator',
+        WhileStatement: 'WhileStatement',
+        WithStatement: 'WithStatement',
+        YieldExpression: 'YieldExpression'
+      };
+      function ignoreJSHintError() {
+      }
+      isArray = Array.isArray;
+      if (!isArray) {
+        isArray = function isArray(array) {
+          return Object.prototype.toString.call(array) === '[object Array]';
+        };
+      }
+      function deepCopy(obj) {
+        var ret = {}, key, val;
+        for (key in obj) {
+          if (obj.hasOwnProperty(key)) {
+            val = obj[key];
+            if (typeof val === 'object' && val !== null) {
+              ret[key] = deepCopy(val);
+            } else {
+              ret[key] = val;
+            }
+          }
+        }
+        return ret;
+      }
+      function shallowCopy(obj) {
+        var ret = {}, key;
+        for (key in obj) {
+          if (obj.hasOwnProperty(key)) {
+            ret[key] = obj[key];
+          }
+        }
+        return ret;
+      }
+      ignoreJSHintError(shallowCopy);
+      function upperBound(array, func) {
+        var diff, len, i, current;
+        len = array.length;
+        i = 0;
+        while (len) {
+          diff = len >>> 1;
+          current = i + diff;
+          if (func(array[current])) {
+            len = diff;
+          } else {
+            i = current + 1;
+            len -= diff + 1;
+          }
+        }
+        return i;
+      }
+      function lowerBound(array, func) {
+        var diff, len, i, current;
+        len = array.length;
+        i = 0;
+        while (len) {
+          diff = len >>> 1;
+          current = i + diff;
+          if (func(array[current])) {
+            i = current + 1;
+            len -= diff + 1;
+          } else {
+            len = diff;
+          }
+        }
+        return i;
+      }
+      ignoreJSHintError(lowerBound);
+      VisitorKeys = {
+        AssignmentExpression: [
+          'left',
+          'right'
+        ],
+        ArrayExpression: ['elements'],
+        ArrowFunctionExpression: [
+          'params',
+          'body'
+        ],
+        BlockStatement: ['body'],
+        BinaryExpression: [
+          'left',
+          'right'
+        ],
+        BreakStatement: ['label'],
+        CallExpression: [
+          'callee',
+          'arguments'
+        ],
+        CatchClause: [
+          'param',
+          'body'
+        ],
+        ConditionalExpression: [
+          'test',
+          'consequent',
+          'alternate'
+        ],
+        ContinueStatement: ['label'],
+        DebuggerStatement: [],
+        DirectiveStatement: [],
+        DoWhileStatement: [
+          'body',
+          'test'
+        ],
+        EmptyStatement: [],
+        ExpressionStatement: ['expression'],
+        ForStatement: [
+          'init',
+          'test',
+          'update',
+          'body'
+        ],
+        ForInStatement: [
+          'left',
+          'right',
+          'body'
+        ],
+        FunctionDeclaration: [
+          'id',
+          'params',
+          'body'
+        ],
+        FunctionExpression: [
+          'id',
+          'params',
+          'body'
+        ],
+        Identifier: [],
+        IfStatement: [
+          'test',
+          'consequent',
+          'alternate'
+        ],
+        Literal: [],
+        LabeledStatement: [
+          'label',
+          'body'
+        ],
+        LogicalExpression: [
+          'left',
+          'right'
+        ],
+        MemberExpression: [
+          'object',
+          'property'
+        ],
+        NewExpression: [
+          'callee',
+          'arguments'
+        ],
+        ObjectExpression: ['properties'],
+        Program: ['body'],
+        Property: [
+          'key',
+          'value'
+        ],
+        ReturnStatement: ['argument'],
+        SequenceExpression: ['expressions'],
+        SwitchStatement: [
+          'discriminant',
+          'cases'
+        ],
+        SwitchCase: [
+          'test',
+          'consequent'
+        ],
+        ThisExpression: [],
+        ThrowStatement: ['argument'],
+        TryStatement: [
+          'block',
+          'handlers',
+          'handler',
+          'guardedHandlers',
+          'finalizer'
+        ],
+        UnaryExpression: ['argument'],
+        UpdateExpression: ['argument'],
+        VariableDeclaration: ['declarations'],
+        VariableDeclarator: [
+          'id',
+          'init'
+        ],
+        WhileStatement: [
+          'test',
+          'body'
+        ],
+        WithStatement: [
+          'object',
+          'body'
+        ],
+        YieldExpression: ['argument']
+      };
+      BREAK = {};
+      SKIP = {};
+      VisitorOption = {
+        Break: BREAK,
+        Skip: SKIP
+      };
+      function Reference(parent, key) {
+        this.parent = parent;
+        this.key = key;
+      }
+      Reference.prototype.replace = function replace(node) {
+        this.parent[this.key] = node;
+      };
+      function Element(node, path, wrap, ref) {
+        this.node = node;
+        this.path = path;
+        this.wrap = wrap;
+        this.ref = ref;
+      }
+      function Controller() {
+      }
+      Controller.prototype.path = function path() {
+        var i, iz, j, jz, result, element;
+        function addToPath(result, path) {
+          if (isArray(path)) {
+            for (j = 0, jz = path.length; j < jz; ++j) {
+              result.push(path[j]);
+            }
+          } else {
+            result.push(path);
+          }
+        }
+        if (!this.__current.path) {
+          return null;
+        }
+        result = [];
+        for (i = 2, iz = this.__leavelist.length; i < iz; ++i) {
+          element = this.__leavelist[i];
+          addToPath(result, element.path);
+        }
+        addToPath(result, this.__current.path);
+        return result;
+      };
+      Controller.prototype.parents = function parents() {
+        var i, iz, result;
+        result = [];
+        for (i = 1, iz = this.__leavelist.length; i < iz; ++i) {
+          result.push(this.__leavelist[i].node);
+        }
+        return result;
+      };
+      Controller.prototype.current = function current() {
+        return this.__current.node;
+      };
+      Controller.prototype.__execute = function __execute(callback, element) {
+        var previous, result;
+        result = undefined;
+        previous = this.__current;
+        this.__current = element;
+        this.__state = null;
+        if (callback) {
+          result = callback.call(this, element.node, this.__leavelist[this.__leavelist.length - 1].node);
+        }
+        this.__current = previous;
+        return result;
+      };
+      Controller.prototype.notify = function notify(flag) {
+        this.__state = flag;
+      };
+      Controller.prototype.skip = function () {
+        this.notify(SKIP);
+      };
+      Controller.prototype['break'] = function () {
+        this.notify(BREAK);
+      };
+      Controller.prototype.__initialize = function (root, visitor) {
+        this.visitor = visitor;
+        this.root = root;
+        this.__worklist = [];
+        this.__leavelist = [];
+        this.__current = null;
+        this.__state = null;
+      };
+      Controller.prototype.traverse = function traverse(root, visitor) {
+        var worklist, leavelist, element, node, nodeType, ret, key, current, current2, candidates, candidate, sentinel;
+        this.__initialize(root, visitor);
+        sentinel = {};
+        worklist = this.__worklist;
+        leavelist = this.__leavelist;
+        worklist.push(new Element(root, null, null, null));
+        leavelist.push(new Element(null, null, null, null));
+        while (worklist.length) {
+          element = worklist.pop();
+          if (element === sentinel) {
+            element = leavelist.pop();
+            ret = this.__execute(visitor.leave, element);
+            if (this.__state === BREAK || ret === BREAK) {
+              return;
+            }
+            continue;
+          }
+          if (element.node) {
+            ret = this.__execute(visitor.enter, element);
+            if (this.__state === BREAK || ret === BREAK) {
+              return;
+            }
+            worklist.push(sentinel);
+            leavelist.push(element);
+            if (this.__state === SKIP || ret === SKIP) {
+              continue;
+            }
+            node = element.node;
+            nodeType = element.wrap || node.type;
+            candidates = VisitorKeys[nodeType];
+            current = candidates.length;
+            while ((current -= 1) >= 0) {
+              key = candidates[current];
+              candidate = node[key];
+              if (!candidate) {
+                continue;
+              }
+              if (!isArray(candidate)) {
+                worklist.push(new Element(candidate, key, null, null));
+                continue;
+              }
+              current2 = candidate.length;
+              while ((current2 -= 1) >= 0) {
+                if (!candidate[current2]) {
+                  continue;
+                }
+                if (nodeType === Syntax.ObjectExpression && 'properties' === candidates[current]) {
+                  element = new Element(candidate[current2], [
+                    key,
+                    current2
+                  ], 'Property', null);
+                } else {
+                  element = new Element(candidate[current2], [
+                    key,
+                    current2
+                  ], null, null);
+                }
+                worklist.push(element);
+              }
+            }
+          }
+        }
+      };
+      Controller.prototype.replace = function replace(root, visitor) {
+        var worklist, leavelist, node, nodeType, target, element, current, current2, candidates, candidate, sentinel, outer, key;
+        this.__initialize(root, visitor);
+        sentinel = {};
+        worklist = this.__worklist;
+        leavelist = this.__leavelist;
+        outer = { root: root };
+        element = new Element(root, null, null, new Reference(outer, 'root'));
+        worklist.push(element);
+        leavelist.push(element);
+        while (worklist.length) {
+          element = worklist.pop();
+          if (element === sentinel) {
+            element = leavelist.pop();
+            target = this.__execute(visitor.leave, element);
+            if (target !== undefined && target !== BREAK && target !== SKIP) {
+              element.ref.replace(target);
+            }
+            if (this.__state === BREAK || target === BREAK) {
+              return outer.root;
+            }
+            continue;
+          }
+          target = this.__execute(visitor.enter, element);
+          if (target !== undefined && target !== BREAK && target !== SKIP) {
+            element.ref.replace(target);
+            element.node = target;
+          }
+          if (this.__state === BREAK || target === BREAK) {
+            return outer.root;
+          }
+          node = element.node;
+          if (!node) {
+            continue;
+          }
+          worklist.push(sentinel);
+          leavelist.push(element);
+          if (this.__state === SKIP || target === SKIP) {
+            continue;
+          }
+          nodeType = element.wrap || node.type;
+          candidates = VisitorKeys[nodeType];
+          current = candidates.length;
+          while ((current -= 1) >= 0) {
+            key = candidates[current];
+            candidate = node[key];
+            if (!candidate) {
+              continue;
+            }
+            if (!isArray(candidate)) {
+              worklist.push(new Element(candidate, key, null, new Reference(node, key)));
+              continue;
+            }
+            current2 = candidate.length;
+            while ((current2 -= 1) >= 0) {
+              if (!candidate[current2]) {
+                continue;
+              }
+              if (nodeType === Syntax.ObjectExpression && 'properties' === candidates[current]) {
+                element = new Element(candidate[current2], [
+                  key,
+                  current2
+                ], 'Property', new Reference(candidate, current2));
+              } else {
+                element = new Element(candidate[current2], [
+                  key,
+                  current2
+                ], null, new Reference(candidate, current2));
+              }
+              worklist.push(element);
+            }
+          }
+        }
+        return outer.root;
+      };
+      function traverse(root, visitor) {
+        var controller = new Controller;
+        return controller.traverse(root, visitor);
+      }
+      function replace(root, visitor) {
+        var controller = new Controller;
+        return controller.replace(root, visitor);
+      }
+      function extendCommentRange(comment, tokens) {
+        var target, token;
+        target = upperBound(tokens, function search(token) {
+          return token.range[0] > comment.range[0];
+        });
+        comment.extendedRange = [
+          comment.range[0],
+          comment.range[1]
+        ];
+        if (target !== tokens.length) {
+          comment.extendedRange[1] = tokens[target].range[0];
+        }
+        target -= 1;
+        if (target >= 0) {
+          if (target < tokens.length) {
+            comment.extendedRange[0] = tokens[target].range[1];
+          } else if (token.length) {
+            comment.extendedRange[1] = tokens[tokens.length - 1].range[0];
+          }
+        }
+        return comment;
+      }
+      function attachComments(tree, providedComments, tokens) {
+        var comments = [], comment, len, i, cursor;
+        if (!tree.range) {
+          throw new Error('attachComments needs range information');
+        }
+        if (!tokens.length) {
+          if (providedComments.length) {
+            for (i = 0, len = providedComments.length; i < len; i += 1) {
+              comment = deepCopy(providedComments[i]);
+              comment.extendedRange = [
+                0,
+                tree.range[0]
+              ];
+              comments.push(comment);
+            }
+            tree.leadingComments = comments;
+          }
+          return tree;
+        }
+        for (i = 0, len = providedComments.length; i < len; i += 1) {
+          comments.push(extendCommentRange(deepCopy(providedComments[i]), tokens));
+        }
+        cursor = 0;
+        traverse(tree, {
+          enter: function (node) {
+            var comment;
+            while (cursor < comments.length) {
+              comment = comments[cursor];
+              if (comment.extendedRange[1] > node.range[0]) {
+                break;
+              }
+              if (comment.extendedRange[1] === node.range[0]) {
+                if (!node.leadingComments) {
+                  node.leadingComments = [];
+                }
+                node.leadingComments.push(comment);
+                comments.splice(cursor, 1);
+              } else {
+                cursor += 1;
+              }
+            }
+            if (cursor === comments.length) {
+              return VisitorOption.Break;
+            }
+            if (comments[cursor].extendedRange[0] > node.range[1]) {
+              return VisitorOption.Skip;
+            }
+          }
+        });
+        cursor = 0;
+        traverse(tree, {
+          leave: function (node) {
+            var comment;
+            while (cursor < comments.length) {
+              comment = comments[cursor];
+              if (node.range[1] < comment.extendedRange[0]) {
+                break;
+              }
+              if (node.range[1] === comment.extendedRange[0]) {
+                if (!node.trailingComments) {
+                  node.trailingComments = [];
+                }
+                node.trailingComments.push(comment);
+                comments.splice(cursor, 1);
+              } else {
+                cursor += 1;
+              }
+            }
+            if (cursor === comments.length) {
+              return VisitorOption.Break;
+            }
+            if (comments[cursor].extendedRange[0] > node.range[1]) {
+              return VisitorOption.Skip;
+            }
+          }
+        });
+        return tree;
+      }
+      exports.version = '1.3.1';
+      exports.Syntax = Syntax;
+      exports.traverse = traverse;
+      exports.replace = replace;
+      exports.attachComments = attachComments;
+      exports.VisitorKeys = VisitorKeys;
+      exports.VisitorOption = VisitorOption;
+      exports.Controller = Controller;
+    }));
+  });
+  require('/tools/entry-point.js');
+}.call(this, this));
diff --git a/package.json b/package.json
index 4a5b109..957ec0b 100644
--- a/package.json
+++ b/package.json
@@ -1,58 +1,58 @@
 {
-  "name": "escodegen",
-  "description": "ECMAScript code generator",
-  "homepage": "http://github.com/Constellation/escodegen.html",
-  "main": "escodegen.js",
-  "bin": {
-    "esgenerate": "./bin/esgenerate.js",
-    "escodegen": "./bin/escodegen.js"
-  },
-  "version": "0.0.28-dev",
-  "engines": {
-    "node": ">=0.4.0"
-  },
-  "maintainers": [
-    {
-      "name": "Yusuke Suzuki",
-      "email": "utatane.tea@gmail.com",
-      "web": "http://github.com/Constellation"
+    "name": "escodegen",
+    "description": "ECMAScript code generator",
+    "homepage": "http://github.com/Constellation/escodegen.html",
+    "main": "escodegen.js",
+    "bin": {
+        "esgenerate": "./bin/esgenerate.js",
+        "escodegen": "./bin/escodegen.js"
+    },
+    "version": "0.0.28",
+    "engines": {
+        "node": ">=0.4.0"
+    },
+    "maintainers": [
+        {
+            "name": "Yusuke Suzuki",
+            "email": "utatane.tea@gmail.com",
+            "web": "http://github.com/Constellation"
+        }
+    ],
+    "repository": {
+        "type": "git",
+        "url": "http://github.com/Constellation/escodegen.git"
+    },
+    "dependencies": {
+        "esprima": "~1.0.2",
+        "estraverse": "~1.3.0"
+    },
+    "optionalDependencies": {
+        "source-map": ">= 0.1.2"
+    },
+    "devDependencies": {
+        "esprima-moz": "*",
+        "commonjs-everywhere": "~0.8.0",
+        "q": "*",
+        "bower": "*",
+        "semver": "*",
+        "chai": "~1.7.2",
+        "grunt-contrib-jshint": "~0.5.0",
+        "grunt-cli": "~0.1.9",
+        "grunt": "~0.4.1",
+        "grunt-mocha-test": "~0.6.2"
+    },
+    "licenses": [
+        {
+            "type": "BSD",
+            "url": "http://github.com/Constellation/escodegen/raw/master/LICENSE.BSD"
+        }
+    ],
+    "scripts": {
+        "test": "grunt travis",
+        "unit-test": "grunt test",
+        "lint": "grunt lint",
+        "release": "node tools/release.js",
+        "build-min": "./node_modules/.bin/cjsify -ma path: tools/entry-point.js > escodegen.browser.min.js",
+        "build": "./node_modules/.bin/cjsify -a path: tools/entry-point.js > escodegen.browser.js"
     }
-  ],
-  "repository": {
-    "type": "git",
-    "url": "http://github.com/Constellation/escodegen.git"
-  },
-  "dependencies": {
-    "esprima": "~1.0.2",
-    "estraverse": "~1.3.0"
-  },
-  "optionalDependencies": {
-    "source-map": ">= 0.1.2"
-  },
-  "devDependencies": {
-    "esprima-moz": "*",
-    "commonjs-everywhere": "~0.8.0",
-    "q": "*",
-    "bower": "*",
-    "semver": "*",
-    "chai": "~1.7.2",
-    "grunt-contrib-jshint": "~0.5.0",
-    "grunt-cli": "~0.1.9",
-    "grunt": "~0.4.1",
-    "grunt-mocha-test": "~0.6.2"
-  },
-  "licenses": [
-    {
-      "type": "BSD",
-      "url": "http://github.com/Constellation/escodegen/raw/master/LICENSE.BSD"
-    }
-  ],
-  "scripts": {
-    "test": "grunt travis",
-    "unit-test": "grunt test",
-    "lint": "grunt lint",
-    "release": "node tools/release.js",
-    "build-min": "./node_modules/.bin/cjsify -ma path: tools/entry-point.js > escodegen.browser.min.js",
-    "build": "./node_modules/.bin/cjsify -a path: tools/entry-point.js > escodegen.browser.js"
-  }
-}
+}
\ No newline at end of file