1 /*
2 * $Id: ClassGenerator.java,v 1.189 2004/12/17 09:04:12 russel Exp $
3 *
4 * Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
5 *
6 * Redistribution and use of this software and associated documentation
7 * ("Software"), with or without modification, are permitted provided that the
8 * following conditions are met: 1. Redistributions of source code must retain
9 * 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.CodeVisitorSupport;
37 import org.codehaus.groovy.ast.GroovyClassVisitor;
38 import org.objectweb.asm.Constants;
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:james@coredevelopers.net">James Strachan</a>
46 * @version $Revision: 1.189 $
47 */
48 public abstract class ClassGenerator extends CodeVisitorSupport implements GroovyClassVisitor, Constants {
49 protected ClassLoader classLoader;
50 // inner classes created while generating bytecode
51 protected LinkedList innerClasses = new LinkedList();
52
53 public ClassGenerator(ClassLoader classLoader) {
54 this.classLoader = classLoader;
55 }
56
57 public LinkedList getInnerClasses() {
58 return innerClasses;
59 }
60
61 public ClassLoader getClassLoader() {
62 return classLoader;
63 }
64
65 /***
66 * A constant that is the ASM representation of the JDK version number for use in the
67 * <code>ClassWriter.visitor</code> method calls.
68 *
69 * <p>Prior to version 1.5 of ASM, the code generated was always JDK1.3 compliant. As of ASM version
70 * 1.5 there is an extra (first) parameter to specify the bytecode version to generate. In
71 * version 1.5 these are in Constants. The CVS (as at 2004.12.12) and presumably in version 2.0,
72 * the interface Constants is replaced by Opcodes.</p>
73 *
74 * @author Russel Winder
75 * @version 2004.12.14
76 */
77 public final static int asmJDKVersion = V1_3 ;
78 // We can use V1_3 and not org.objectweb.asm.Constants.V1_3 because this abstract class
79 // implements org.objectweb.asm.Constants so all its constants are available directly.
80 }