Groovy example source code file (SourceParserTest.java)

This example Groovy source code file (SourceParserTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Groovy tags/keywords

exception, groovylexer, groovylexer, groovyrecognizer, groovytestcase, io, printwriter, reader, sourcebuffer, sourcebuffer, sourceparsertest, stringwriter, stringwriter, unicodeescapingreader, unicodeescapingreader

The Groovy SourceParserTest.java source code

package org.codehaus.groovy.antlr;

import groovy.util.GroovyTestCase;

import java.io.PrintWriter;
import java.io.Reader;
import java.io.StringWriter;

import org.codehaus.groovy.antlr.parser.GroovyLexer;
import org.codehaus.groovy.antlr.parser.GroovyRecognizer;

public class SourceParserTest extends GroovyTestCase {
    protected void parse(String name, Reader reader) {
        SourceBuffer sourceBuffer = new SourceBuffer();
        UnicodeEscapingReader unicodeReader = new UnicodeEscapingReader(reader, sourceBuffer);
        GroovyLexer lexer = new GroovyLexer(unicodeReader);
        unicodeReader.setLexer(lexer);
        GroovyRecognizer parser = GroovyRecognizer.make(lexer);
        parser.setSourceBuffer(sourceBuffer);
        parser.setFilename(name);

        // start parsing at the compilationUnit rule
        try {
            parser.compilationUnit();
        }
        catch (Exception ex) {
            StringWriter out = new StringWriter();
            out.write(ex.getMessage());
            out.write("\n");
            ex.printStackTrace(new PrintWriter(out));
            fail(out.toString());
        }
    }
}