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

Example 11 with UnicodeEscapingReader

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

the class GroovyRootDocBuilder method getGroovyParser.

private static GroovyRecognizer getGroovyParser(String input, SourceBuffer sourceBuffer) {
    UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(new StringReader(input), sourceBuffer);
    GroovyLexer lexer = new GroovyLexer(unicodeReader);
    unicodeReader.setLexer(lexer);
    GroovyRecognizer parser = GroovyRecognizer.make(lexer);
    parser.setSourceBuffer(sourceBuffer);
    return parser;
}

Example 12 with UnicodeEscapingReader

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

the class Java2GroovyProcessor method getGroovyTokenNames.

private static String[] getGroovyTokenNames(String input) {
    GroovyRecognizer groovyParser = null;
    SourceBuffer groovySourceBuffer = new SourceBuffer();
    UnicodeEscapingReader groovyUnicodeReader = new UnicodeEscapingReader(new StringReader(input), groovySourceBuffer);
    GroovyLexer groovyLexer = new GroovyLexer(groovyUnicodeReader);
    groovyUnicodeReader.setLexer(groovyLexer);
    groovyParser = GroovyRecognizer.make(groovyLexer);
    return groovyParser.getTokenNames();
}

Example 13 with UnicodeEscapingReader

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

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 14 with UnicodeEscapingReader

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

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());
}