| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| package org.apache.royale.compiler.internal.codegen.js; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.util.List; |
| import java.util.Stack; |
| |
| import org.apache.royale.compiler.codegen.ISourceMapEmitter; |
| import org.apache.royale.compiler.codegen.js.IJSEmitter; |
| import org.apache.royale.compiler.codegen.js.IJSWriter; |
| import org.apache.royale.compiler.codegen.js.IMappingEmitter; |
| import org.apache.royale.compiler.driver.js.IJSBackend; |
| import org.apache.royale.compiler.internal.projects.RoyaleJSProject; |
| import org.apache.royale.compiler.problems.ICompilerProblem; |
| import org.apache.royale.compiler.units.ICompilationUnit; |
| import org.apache.royale.compiler.visitor.as.IASBlockWalker; |
| |
| public class JSWriter implements IJSWriter |
| { |
| protected RoyaleJSProject project; |
| |
| protected List<ICompilerProblem> problems; |
| |
| protected ICompilationUnit compilationUnit; |
| |
| @SuppressWarnings("unused") |
| private boolean enableDebug; |
| |
| private boolean isExterns = false; |
| |
| public boolean isExterns() |
| { |
| return this.isExterns; |
| } |
| |
| /** |
| * Create a JSApplication writer. |
| * |
| * @param application the JSApplication model to be encoded |
| * @param useCompression use ZLIB compression if true |
| */ |
| public JSWriter(RoyaleJSProject project, List<ICompilerProblem> problems, |
| ICompilationUnit compilationUnit, boolean enableDebug) |
| { |
| this.project = project; |
| this.problems = problems; |
| this.compilationUnit = compilationUnit; |
| this.enableDebug = enableDebug; |
| } |
| |
| @Override |
| public void close() throws IOException |
| { |
| //outputBuffer.close(); |
| } |
| |
| @Override |
| public void writeTo(OutputStream out) |
| { |
| writeTo(out, null, null); |
| } |
| |
| @Override |
| public int writeTo(File out) throws IOException |
| { |
| return 0; |
| } |
| |
| public void writeTo(OutputStream jsOut, OutputStream jsSourceMapOut, File sourceMapFile) |
| { |
| IJSBackend backend = (IJSBackend) project.getBackend(); |
| JSFilterWriter writer = (JSFilterWriter) backend.createWriterBuffer(project); |
| IJSEmitter emitter = (IJSEmitter) backend.createEmitter(writer); |
| IASBlockWalker walker = backend.createWalker(project, problems, emitter); |
| |
| walker.visitCompilationUnit(compilationUnit); |
| |
| isExterns = emitter.getModel().isExterns; |
| |
| try |
| { |
| String emitted = writer.toString(); |
| if(!isExterns) |
| { |
| //nothing to post-process in externs |
| emitted = emitter.postProcess(emitted); |
| } |
| jsOut.write(emitted.getBytes("utf8")); |
| } |
| catch (IOException e) |
| { |
| e.printStackTrace(System.err); |
| } |
| |
| if (jsSourceMapOut != null) |
| { |
| String sourceMapFilePath = null; |
| String sourceRoot = null; |
| if (sourceMapFile != null) |
| { |
| sourceMapFilePath = sourceMapFile.getAbsolutePath(); |
| convertMappingSourcePathsToRelative(emitter, sourceMapFile); |
| } |
| else |
| { |
| sourceRoot = System.getProperty("user.dir"); |
| convertMappingSourcePathsToRelative((IMappingEmitter) emitter, new File(sourceRoot, "test.js.map")); |
| sourceRoot = convertSourcePathToURI(sourceRoot); |
| } |
| convertMappingSourcePathsToURI(emitter); |
| |
| File compilationUnitFile = new File(compilationUnit.getAbsoluteFilename()); |
| ISourceMapEmitter sourceMapEmitter = backend.createSourceMapEmitter(emitter); |
| try |
| { |
| String fileName = compilationUnitFile.getName(); |
| fileName = fileName.replace(".as", ".js"); |
| String sourceMap = sourceMapEmitter.emitSourceMap(fileName, sourceMapFilePath, sourceRoot); |
| jsSourceMapOut.write(sourceMap.getBytes("utf8")); |
| } |
| catch (Exception e) |
| { |
| e.printStackTrace(System.err); |
| } |
| } |
| } |
| |
| protected void convertMappingSourcePathsToRelative(IMappingEmitter emitter, File relativeToFile) |
| { |
| List<IMappingEmitter.SourceMapMapping> mappings = emitter.getSourceMapMappings(); |
| for (IMappingEmitter.SourceMapMapping mapping : mappings) |
| { |
| String relativePath = relativize(mapping.sourcePath, relativeToFile.getAbsolutePath()); |
| //this shouldn't happen, but if it does, keep the absolute path |
| if (relativePath != null) |
| { |
| mapping.sourcePath = relativePath; |
| } |
| } |
| } |
| |
| protected void convertMappingSourcePathsToURI(IMappingEmitter emitter) |
| { |
| List<IMappingEmitter.SourceMapMapping> mappings = emitter.getSourceMapMappings(); |
| for (IMappingEmitter.SourceMapMapping mapping : mappings) |
| { |
| String sourcePath = mapping.sourcePath; |
| sourcePath = convertSourcePathToURI(sourcePath); |
| mapping.sourcePath = sourcePath; |
| } |
| } |
| |
| protected String convertSourcePathToURI(String sourcePath) |
| { |
| if (sourcePath == null) |
| { |
| return null; |
| } |
| File file = new File(sourcePath); |
| if (file.isAbsolute()) |
| { |
| sourcePath = "file:///" + sourcePath; |
| } |
| //prefer forward slash because web browser devtools expect it |
| return sourcePath.replace('\\', '/'); |
| } |
| |
| //if we ever support Java 7, the java.nio.file.Path relativize() method |
| //should be able to replace this method |
| private String relativize(String filePath, String relativeToFilePath) |
| { |
| boolean caseInsensitive = System.getProperty("os.name").toLowerCase().startsWith("windows"); |
| if(caseInsensitive) |
| { |
| relativeToFilePath = relativeToFilePath.toLowerCase(); |
| } |
| File currentFile = new File(filePath); |
| Stack<String> stack = new Stack<String>(); |
| stack.push(currentFile.getName()); |
| currentFile = currentFile.getParentFile(); |
| while (currentFile != null) |
| { |
| String absoluteCurrentFile = currentFile.getAbsolutePath(); |
| if (!absoluteCurrentFile.endsWith(File.separator)) |
| { |
| //if it's already there don't duplicate it |
| //for instance, a windows drive will be c:\ already |
| absoluteCurrentFile += File.separator; |
| } |
| if (caseInsensitive) |
| { |
| absoluteCurrentFile = absoluteCurrentFile.toLowerCase(); |
| } |
| if (relativeToFilePath.startsWith(absoluteCurrentFile)) |
| { |
| String relativeRelativeToFile = relativeToFilePath.substring(absoluteCurrentFile.length()); |
| int separatorCount = relativeRelativeToFile.length() - relativeRelativeToFile.replace(File.separator, "").length(); |
| String result = ""; |
| while (separatorCount > 0) |
| { |
| result += ".." + File.separator; |
| separatorCount--; |
| } |
| while (stack.size() > 0) |
| { |
| result += stack.pop(); |
| } |
| return result; |
| } |
| stack.push(currentFile.getName() + File.separator); |
| currentFile = currentFile.getParentFile(); |
| } |
| return null; |
| } |
| } |