001: /*
002: $Id: ReflectorGeneratorTest.java 4101 2006-10-11 09:30:27Z blackdrag $
003:
004: Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
005:
006: Redistribution and use of this software and associated documentation
007: ("Software"), with or without modification, are permitted provided
008: that the following conditions are met:
009:
010: 1. Redistributions of source code must retain copyright
011: statements and notices. Redistributions must also contain a
012: copy of this document.
013:
014: 2. Redistributions in binary form must reproduce the
015: above copyright notice, this list of conditions and the
016: following disclaimer in the documentation and/or other
017: materials provided with the distribution.
018:
019: 3. The name "groovy" must not be used to endorse or promote
020: products derived from this Software without prior written
021: permission of The Codehaus. For written permission,
022: please contact info@codehaus.org.
023:
024: 4. Products derived from this Software may not be called "groovy"
025: nor may "groovy" appear in their names without prior written
026: permission of The Codehaus. "groovy" is a registered
027: trademark of The Codehaus.
028:
029: 5. Due credit should be given to The Codehaus -
030: http://groovy.codehaus.org/
031:
032: THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
033: ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
034: NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
035: FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
036: THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
037: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
038: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
039: SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
040: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
041: STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
042: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
043: OF THE POSSIBILITY OF SUCH DAMAGE.
044:
045: */
046:
047: package org.codehaus.groovy.classgen;
048:
049: import java.io.*;
050: import java.util.ArrayList;
051: import java.util.List;
052:
053: import org.codehaus.groovy.runtime.InvokerHelper;
054: import org.objectweb.asm.ClassWriter;
055: import org.objectweb.asm.util.CheckClassAdapter;
056: import org.objectweb.asm.util.ASMifierClassVisitor;
057:
058: import groovy.lang.MetaClassRegistry;
059: import groovy.lang.MetaMethod;
060: import groovy.util.GroovyTestCase;
061:
062: /**
063: *
064: * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
065: * @version $Revision: 4101 $
066: */
067: public class ReflectorGeneratorTest extends GroovyTestCase {
068:
069: public void testGenerator() throws Exception {
070: List methods = new ArrayList();
071: methods.add(new MetaMethod("toCharArray", String.class,
072: new Class[0], char[].class, 0));
073: //methods.add(new MetaMethod("toString", String.class, new Class[0], String.class, 0));
074: testMethods(methods);
075: }
076:
077: public void testObjectGenerator() throws Exception {
078: List methods = InvokerHelper.getMetaClass(new Object())
079: .getMethods();
080: testMethods(methods);
081: }
082:
083: public void testDummyReflector() throws Exception {
084: DummyReflector dummy = new DummyReflector();
085: assertTrue(dummy != null);
086: }
087:
088: protected void testMethods(List methods) throws Exception {
089: ReflectorGenerator generator = new ReflectorGenerator(methods);
090: String name = getClass().getName() + "." + getMethodName();
091: ClassWriter cw = new ClassWriter(true);
092:
093: //ASMifierClassVisitor dumper = new ASMifierClassVisitor(new PrintWriter(new OutputStreamWriter(System.out)));
094: //generator.generate(dumper, name);
095:
096: generator.generate(new CheckClassAdapter(cw), name);
097:
098: byte[] bytecode = cw.toByteArray();
099:
100: // lets write it to disk
101: String fileName = "target/" + name + ".class";
102: FileOutputStream out = new FileOutputStream(fileName);
103: out.write(bytecode);
104: out.close();
105:
106: // now lets try dump it
107: ASMifierClassVisitor.main(new String[] { fileName });
108:
109: // now lets try class load it
110: MetaClassRegistry registry = new MetaClassRegistry();
111: Object reflector = registry.loadReflector(getClass(), methods);
112:
113: System.out.println("Created new reflector: " + reflector);
114: }
115: }
|