Examples with Parser com.google.devtools.j2objc.util.Parser used on opensource projects

Example 1 with Parser

use of com.google.devtools.j2objc.util.Parser in project j2objc by google.

the class CycleFinder method stripIncompatible.

private File stripIncompatible(List<String> sourceFileNames, Parser parser) throws IOException {
    File strippedDir = null;
    for (int i = 0; i < sourceFileNames.size(); i++) {
        String fileName = sourceFileNames.get(i);
        RegularInputFile file = new RegularInputFile(fileName);
        String source = j2objcOptions.fileUtil().readFile(file);
        if (!source.contains("J2ObjCIncompatible")) {
            continue;
        }
        if (strippedDir == null) {
            strippedDir = Files.createTempDir();
            parser.prependSourcepathEntry(strippedDir.getPath());
        }
        Parser.ParseResult parseResult = parser.parseWithoutBindings(file, source);
        String qualifiedName = parseResult.mainTypeName();
        parseResult.stripIncompatibleSource();
        String relativePath = qualifiedName.replace('.', File.separatorChar) + ".java";
        File strippedFile = new File(strippedDir, relativePath);
        Files.createParentDirs(strippedFile);
        Files.write(parseResult.getSource(), strippedFile, Charset.forName(options.fileEncoding()));
        sourceFileNames.set(i, strippedFile.getPath());
    }
    return strippedDir;
}

Example 2 with Parser

use of com.google.devtools.j2objc.util.Parser in project j2objc by google.

the class TreeShaker method stripIncompatible.

private File stripIncompatible(List<String> sourceFileNames, Parser parser) throws IOException {
    File strippedDir = null;
    for (int i = 0; i < sourceFileNames.size(); i++) {
        String fileName = sourceFileNames.get(i);
        RegularInputFile file = new RegularInputFile(fileName);
        String source = j2objcOptions.fileUtil().readFile(file);
        if (!source.contains("J2ObjCIncompatible")) {
            continue;
        }
        if (strippedDir == null) {
            strippedDir = Files.createTempDir();
            parser.prependSourcepathEntry(strippedDir.getPath());
        }
        Parser.ParseResult parseResult = parser.parseWithoutBindings(file, source);
        String qualifiedName = parseResult.mainTypeName();
        parseResult.stripIncompatibleSource();
        String relativePath = qualifiedName.replace('.', File.separatorChar) + ".java";
        File strippedFile = new File(strippedDir, relativePath);
        Files.createParentDirs(strippedFile);
        Files.write(parseResult.getSource(), strippedFile, j2objcOptions.fileUtil().getCharset());
        sourceFileNames.set(i, strippedFile.getPath());
    }
    return strippedDir;
}

Example 3 with Parser

use of com.google.devtools.j2objc.util.Parser in project j2objc by google.

the class J2ObjC method run.

/**
   * Runs the entire J2ObjC pipeline.
   * @param fileArgs the files to process, same format as command-line args to {@link #main}.
   */
public static void run(List<String> fileArgs, Options options) {
    File preProcessorTempDir = null;
    File strippedSourcesDir = null;
    Parser parser = null;
    try {
        List<ProcessingContext> inputs = Lists.newArrayList();
        GenerationBatch batch = new GenerationBatch(options);
        batch.processFileArgs(fileArgs);
        inputs.addAll(batch.getInputs());
        if (ErrorUtil.errorCount() > 0) {
            return;
        }
        parser = createParser(options);
        Parser.ProcessingResult processingResult = parser.processAnnotations(fileArgs, inputs);
        List<ProcessingContext> generatedInputs = processingResult.getGeneratedSources();
        // Ensure all generatedInputs are at end of input list.
        inputs.addAll(generatedInputs);
        preProcessorTempDir = processingResult.getSourceOutputDirectory();
        if (ErrorUtil.errorCount() > 0) {
            return;
        }
        if (preProcessorTempDir != null) {
            parser.addSourcepathEntry(preProcessorTempDir.getAbsolutePath());
        }
        InputFilePreprocessor inputFilePreprocessor = new InputFilePreprocessor(parser);
        inputFilePreprocessor.processInputs(inputs);
        if (ErrorUtil.errorCount() > 0) {
            return;
        }
        strippedSourcesDir = inputFilePreprocessor.getStrippedSourcesDir();
        if (strippedSourcesDir != null) {
            parser.prependSourcepathEntry(strippedSourcesDir.getPath());
        }
        options.getHeaderMap().loadMappings();
        TranslationProcessor translationProcessor = new TranslationProcessor(parser, loadDeadCodeMap());
        translationProcessor.processInputs(inputs);
        translationProcessor.processBuildClosureDependencies();
        if (ErrorUtil.errorCount() > 0) {
            return;
        }
        translationProcessor.postProcess();
        options.getHeaderMap().printMappings();
    } finally {
        if (parser != null) {
            try {
                parser.close();
            } catch (IOException e) {
                ErrorUtil.error(e.getMessage());
            }
        }
        Set<String> tempDirs = options.fileUtil().getTempDirs();
        for (String dir : tempDirs) {
            FileUtil.deleteTempDir(new File(dir));
        }
        FileUtil.deleteTempDir(preProcessorTempDir);
        FileUtil.deleteTempDir(strippedSourcesDir);
    }
}

Example 4 with Parser

use of com.google.devtools.j2objc.util.Parser in project j2objc by google.

the class CycleFinder method createParser.

private Parser createParser() {
    Parser parser = Parser.newParser(j2objcOptions);
    parser.addSourcepathEntries(Strings.nullToEmpty(options.getSourcepath()));
    parser.addClasspathEntries(Strings.nullToEmpty(options.getBootclasspath()));
    parser.addClasspathEntries(Strings.nullToEmpty(options.getClasspath()));
    return parser;
}

Example 5 with Parser

use of com.google.devtools.j2objc.util.Parser in project j2objc by google.

the class CycleFinder method findCycles.

public List<List<Edge>> findCycles() throws IOException {
    Parser parser = createParser();
    NameList whitelist = NameList.createFromFiles(options.getWhitelistFiles(), options.fileEncoding());
    final GraphBuilder graphBuilder = new GraphBuilder(whitelist);
    List<String> sourceFiles = options.getSourceFiles();
    File strippedDir = stripIncompatible(sourceFiles, parser);
    Parser.Handler handler = new Parser.Handler() {

        @Override
        public void handleParsedUnit(String path, CompilationUnit unit) {
            new LambdaTypeElementAdder(unit).run();
            new OuterReferenceResolver(unit).run();
            graphBuilder.visitAST(unit);
        }
    };
    parser.parseFiles(sourceFiles, handler, options.sourceVersion());
    FileUtil.deleteTempDir(strippedDir);
    if (ErrorUtil.errorCount() > 0) {
        return null;
    }
    // Construct the graph and find cycles.
    ReferenceGraph graph = graphBuilder.constructGraph().getGraph();
    for (ReferenceGraph component : graph.getStronglyConnectedComponents(getSeedNodes(graph))) {
        handleStronglyConnectedComponent(component);
    }
    return cycles;
}