Examples with SourceBuffer org.codehaus.groovy.antlr.SourceBuffer used on opensource projects

Example 1 with SourceBuffer

use of org.codehaus.groovy.antlr.SourceBuffer in project groovy by apache.

the class Java2GroovyProcessor method getJavaParser.

private static JavaRecognizer getJavaParser(String input) {
    JavaRecognizer parser = null;
    SourceBuffer sourceBuffer = new SourceBuffer();
    UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(new StringReader(input), sourceBuffer);
    JavaLexer lexer = new JavaLexer(unicodeReader);
    unicodeReader.setLexer(lexer);
    parser = JavaRecognizer.make(lexer);
    parser.setSourceBuffer(sourceBuffer);
    return parser;
}

Example 2 with SourceBuffer

use of org.codehaus.groovy.antlr.SourceBuffer in project groovy by apache.

the class GroovyRootDocBuilder method parseJava.

private Map<String, GroovyClassDoc> parseJava(String packagePath, String file, String src) throws RecognitionException, TokenStreamException {
    SourceBuffer sourceBuffer = new SourceBuffer();
    JavaRecognizer parser = getJavaParser(src, sourceBuffer);
    String[] tokenNames = parser.getTokenNames();
    try {
        parser.compilationUnit();
    } catch (OutOfMemoryError e) {
        log.error("Out of memory while processing: " + packagePath + "/" + file);
        throw e;
    }
    AST ast = parser.getAST();
    // modify the Java AST into a Groovy AST (just token types)
    Visitor java2groovyConverter = new Java2GroovyConverter(tokenNames);
    AntlrASTProcessor java2groovyTraverser = new PreOrderTraversal(java2groovyConverter);
    java2groovyTraverser.process(ast);
    // now mutate (groovify) the ast into groovy
    Visitor groovifier = new Groovifier(tokenNames, false);
    AntlrASTProcessor groovifierTraverser = new PreOrderTraversal(groovifier);
    groovifierTraverser.process(ast);
    // now do the business     
    Visitor visitor = new SimpleGroovyClassDocAssembler(packagePath, file, sourceBuffer, links, properties, false);
    AntlrASTProcessor traverser = new SourceCodeTraversal(visitor);
    traverser.process(ast);
    return ((SimpleGroovyClassDocAssembler) visitor).getGroovyClassDocs();
}

Example 3 with SourceBuffer

use of org.codehaus.groovy.antlr.SourceBuffer in project groovy by apache.

the class LineColumnTest method doStuff.

public void doStuff(String input) throws Exception {
    GroovyRecognizer parser;
    SourceBuffer sourceBuffer = new SourceBuffer();
    UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(new StringReader(input), sourceBuffer);
    GroovyLexer lexer = new GroovyLexer(unicodeReader);
    unicodeReader.setLexer(lexer);
    parser = GroovyRecognizer.make(lexer);
    parser.setSourceBuffer(sourceBuffer);
    String[] tokenNames = parser.getTokenNames();
    parser.compilationUnit();
    AST ast = parser.getAST();
    AntlrASTProcessor snippets = new AntlrASTProcessSnippets();
    ast = snippets.process(ast);
    Visitor visitor = new LineColumnChecker(sourceBuffer, tokenNames);
    AntlrASTProcessor traverser = new SourceCodeTraversal(visitor);
    traverser.process(ast);
}

Example 4 with SourceBuffer

use of org.codehaus.groovy.antlr.SourceBuffer in project groovy-core by groovy.

the class CompositeVisitorTest method assertCompositeTransparency.

private void assertCompositeTransparency(String input) throws Exception {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GroovyRecognizer parser;
    SourceBuffer sourceBuffer = new SourceBuffer();
    UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(new StringReader(input), sourceBuffer);
    GroovyLexer lexer = new GroovyLexer(unicodeReader);
    unicodeReader.setLexer(lexer);
    parser = GroovyRecognizer.make(lexer);
    parser.setSourceBuffer(sourceBuffer);
    String[] tokenNames = parser.getTokenNames();
    parser.compilationUnit();
    AST ast = parser.getAST();
    // determine direct result
    Visitor directVisitor = new SourcePrinter(new PrintStream(baos), tokenNames, false);
    AntlrASTProcessor traverser = new SourceCodeTraversal(directVisitor);
    traverser.process(ast);
    String directResult = new String(baos.toByteArray());
    // determine composite result
    baos.reset();
    List wrappedVisitors = new ArrayList();
    wrappedVisitors.add(directVisitor);
    Visitor compositeVisitor = new CompositeVisitor(wrappedVisitors);
    traverser = new SourceCodeTraversal(compositeVisitor);
    traverser.process(ast);
    String compositeResult = new String(baos.toByteArray());
    assertEquals(directResult, compositeResult);
}

Example 5 with SourceBuffer

use of org.codehaus.groovy.antlr.SourceBuffer in project groovy-core by groovy.

the class TraversalTestHelper method traverse.

// todo - the visitor doesn't always take PrintStreams as constructor params!  Could be a more reusable implementation than this...
public String traverse(String input, Class visitorClass, Boolean extraParam) throws Exception {
    if (!Visitor.class.isAssignableFrom(visitorClass)) {
        throw new RuntimeException("Invalid class for traversal: " + visitorClass.getName());
    }
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GroovyRecognizer parser;
    SourceBuffer sourceBuffer = new SourceBuffer();
    UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(new StringReader(input), sourceBuffer);
    GroovyLexer lexer = new GroovyLexer(unicodeReader);
    unicodeReader.setLexer(lexer);
    parser = GroovyRecognizer.make(lexer);
    parser.setSourceBuffer(sourceBuffer);
    String[] tokenNames = parser.getTokenNames();
    parser.compilationUnit();
    AST ast = parser.getAST();
    Class[] paramTypes;
    Object[] params;
    if (extraParam == null) {
        paramTypes = new Class[] { PrintStream.class, String[].class };
        params = new Object[] { new PrintStream(baos), tokenNames };
    } else {
        paramTypes = new Class[] { PrintStream.class, String[].class, Boolean.TYPE };
        params = new Object[] { new PrintStream(baos), tokenNames, extraParam };
    }
    Constructor constructor = visitorClass.getConstructor(paramTypes);
    Visitor visitor = (Visitor) constructor.newInstance(params);
    AntlrASTProcessor traverser = new SourceCodeTraversal(visitor);
    traverser.process(ast);
    return new String(baos.toByteArray());
}