01: /*
02: * $Id: ClassGenerator.java 3419 2006-01-19 00:07:02Z blackdrag $
03: *
04: * Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
05: *
06: * Redistribution and use of this software and associated documentation
07: * ("Software"), with or without modification, are permitted provided that the
08: * following conditions are met: 1. Redistributions of source code must retain
09: * copyright statements and notices. Redistributions must also contain a copy
10: * of this document. 2. Redistributions in binary form must reproduce the above
11: * copyright notice, this list of conditions and the following disclaimer in
12: * the documentation and/or other materials provided with the distribution. 3.
13: * The name "groovy" must not be used to endorse or promote products derived
14: * from this Software without prior written permission of The Codehaus. For
15: * written permission, please contact info@codehaus.org. 4. Products derived
16: * from this Software may not be called "groovy" nor may "groovy" appear in
17: * their names without prior written permission of The Codehaus. "groovy" is a
18: * registered trademark of The Codehaus. 5. Due credit should be given to The
19: * Codehaus - http://groovy.codehaus.org/
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY
22: * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24: * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR
25: * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28: * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
31: * DAMAGE.
32: *
33: */
34: package org.codehaus.groovy.classgen;
35:
36: import org.codehaus.groovy.ast.ClassCodeVisitorSupport;
37: import org.codehaus.groovy.control.SourceUnit;
38: import org.objectweb.asm.Opcodes;
39:
40: import java.util.LinkedList;
41:
42: /**
43: * Abstract base class for generator of Java class versions of Groovy AST classes
44: *
45: * @author <a href="mailto:jstrachan@protique.com">James Strachan</a>
46: * @author Russel Winder
47: * @version $Revision: 3419 $
48: */
49: public abstract class ClassGenerator extends ClassCodeVisitorSupport
50: implements Opcodes {
51: protected ClassLoader classLoader;
52: // inner classes created while generating bytecode
53: protected LinkedList innerClasses = new LinkedList();
54:
55: public ClassGenerator(ClassLoader classLoader) {
56: this .classLoader = classLoader;
57: }
58:
59: public LinkedList getInnerClasses() {
60: return innerClasses;
61: }
62:
63: public ClassLoader getClassLoader() {
64: return classLoader;
65: }
66:
67: /**
68: * A constant that is the ASM representation of the JDK version number for use in the
69: * <code>ClassWriter.visitor</code> method calls.
70: *
71: * <p>Prior to version 1.5 of ASM, the code generated was always JDK1.3 compliant. As of ASM version
72: * 1.5 there is an extra (first) parameter to specify the bytecode version to generate. In
73: * version 1.5 these are in Constants. The CVS (as at 2004.12.12) and presumably in version 2.0,
74: * the interface Constants is replaced by Opcodes.</p>
75: */
76: public final static int asmJDKVersion = V1_3;
77:
78: // We can use V1_3 and not org.objectweb.asm.Opcodes.V1_3 because this abstract class
79: // implements org.objectweb.asm.Opcodes so all its constants are available directly.
80:
81: protected SourceUnit getSourceUnit() {
82: return null;
83: }
84: }
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