View Javadoc

    1   /*
    2    * $Id: ClassGenerator.java,v 1.192 2006/01/19 00:06:59 blackdrag 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.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: 1.192 $
    48   */
    49  public abstract class ClassGenerator extends ClassCodeVisitorSupport implements Opcodes {
    50      protected ClassLoader classLoader;
    51      // inner classes created while generating bytecode
    52      protected LinkedList innerClasses = new LinkedList();
    53
    54      public ClassGenerator(ClassLoader classLoader) {
    55          this.classLoader = classLoader;
    56      }
    57
    58      public LinkedList getInnerClasses() {
    59          return innerClasses;
    60      }
    61
    62      public ClassLoader getClassLoader() {
    63          return classLoader;
    64      }
    65
    66    /***
    67     *  A constant that is the ASM representation of the JDK version number for use in the
    68     *  <code>ClassWriter.visitor</code> method calls.
    69     *
    70     *  <p>Prior to version 1.5 of ASM, the code generated was always JDK1.3 compliant.  As of ASM version
    71     *  1.5 there is an extra (first) parameter to specify the bytecode version to generate.  In
    72     *  version 1.5 these are in Constants.  The CVS (as at 2004.12.12) and presumably in version 2.0,
    73     *  the interface Constants is replaced by Opcodes.</p>
    74     */
    75    public final static int asmJDKVersion = V1_3 ;
    76    //  We can use V1_3 and not org.objectweb.asm.Opcodes.V1_3 because this abstract class
    77    //  implements org.objectweb.asm.Opcodes so all its constants are available directly.
    78
    79
    80    protected SourceUnit getSourceUnit() {
    81        return null;
    82    }
    83  }