methodadapter.java

jboss规则引擎

/***
 * ASM: a very small and fast Java bytecode manipulation framework
 * Copyright (c) 2000-2005 INRIA, France Telecom
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.drools.asm;

/**
 * An empty {@link MethodVisitor} that delegates to another
 * {@link MethodVisitor}. This class can be used as a super class to quickly
 * implement usefull method adapter classes, just by overriding the necessary
 * methods.
 * 
 * @author Eric Bruneton
 */
public class MethodAdapter
    implements
    MethodVisitor {

    /**
     * The {@link MethodVisitor} to which this adapter delegates calls.
     */
    protected MethodVisitor mv;

    /**
     * Constructs a new {@link MethodAdapter} object.
     * 
     * @param mv the code visitor to which this adapter must delegate calls.
     */
    public MethodAdapter(final MethodVisitor mv) {
        this.mv = mv;
    }

    public AnnotationVisitor visitAnnotationDefault() {
        return this.mv.visitAnnotationDefault();
    }

    public AnnotationVisitor visitAnnotation(final String desc,
                                             final boolean visible) {
        return this.mv.visitAnnotation( desc,
                                        visible );
    }

    public AnnotationVisitor visitParameterAnnotation(final int parameter,
                                                      final String desc,
                                                      final boolean visible) {
        return this.mv.visitParameterAnnotation( parameter,
                                                 desc,
                                                 visible );
    }

    public void visitAttribute(final Attribute attr) {
        this.mv.visitAttribute( attr );
    }

    public void visitCode() {
        this.mv.visitCode();
    }

    public void visitInsn(final int opcode) {
        this.mv.visitInsn( opcode );
    }

    public void visitIntInsn(final int opcode,
                             final int operand) {
        this.mv.visitIntInsn( opcode,
                              operand );
    }

    public void visitVarInsn(final int opcode,
                             final int var) {
        this.mv.visitVarInsn( opcode,
                              var );
    }

    public void visitTypeInsn(final int opcode,
                              final String desc) {
        this.mv.visitTypeInsn( opcode,
                               desc );
    }

    public void visitFieldInsn(final int opcode,
                               final String owner,
                               final String name,
                               final String desc) {
        this.mv.visitFieldInsn( opcode,
                                owner,
                                name,
                                desc );
    }

    public void visitMethodInsn(final int opcode,
                                final String owner,
                                final String name,
                                final String desc) {
        this.mv.visitMethodInsn( opcode,
                                 owner,
                                 name,
                                 desc );
    }

    public void visitJumpInsn(final int opcode,
                              final Label label) {
        this.mv.visitJumpInsn( opcode,
                               label );
    }

    public void visitLabel(final Label label) {
        this.mv.visitLabel( label );
    }

    public void visitLdcInsn(final Object cst) {
        this.mv.visitLdcInsn( cst );
    }

    public void visitIincInsn(final int var,
                              final int increment) {
        this.mv.visitIincInsn( var,
                               increment );
    }

    public void visitTableSwitchInsn(final int min,
                                     final int max,
                                     final Label dflt,
                                     final Label labels[]) {
        this.mv.visitTableSwitchInsn( min,
                                      max,
                                      dflt,
                                      labels );
    }

    public void visitLookupSwitchInsn(final Label dflt,
                                      final int keys[],
                                      final Label labels[]) {
        this.mv.visitLookupSwitchInsn( dflt,
                                       keys,
                                       labels );
    }

    public void visitMultiANewArrayInsn(final String desc,
                                        final int dims) {
        this.mv.visitMultiANewArrayInsn( desc,
                                         dims );
    }

    public void visitTryCatchBlock(final Label start,
                                   final Label end,
                                   final Label handler,
                                   final String type) {
        this.mv.visitTryCatchBlock( start,
                                    end,
                                    handler,
                                    type );
    }

    public void visitLocalVariable(final String name,
                                   final String desc,
                                   final String signature,
                                   final Label start,
                                   final Label end,
                                   final int index) {
        this.mv.visitLocalVariable( name,
                                    desc,
                                    signature,
                                    start,
                                    end,
                                    index );
    }

    public void visitLineNumber(final int line,
                                final Label start) {
        this.mv.visitLineNumber( line,
                                 start );
    }

    public void visitMaxs(final int maxStack,
                          final int maxLocals) {
        this.mv.visitMaxs( maxStack,
                           maxLocals );
    }

    public void visitEnd() {
        this.mv.visitEnd();
    }
}