1 /*** 2 * ASM: a very small and fast Java bytecode manipulation framework 3 * Copyright (c) 2000-2005 INRIA, France Telecom 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the copyright holders nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 package org.objectweb.asm; 31 32 /** 33 * An empty {@link MethodVisitor} that delegates to another 34 * {@link MethodVisitor}. This class can be used as a super class to quickly 35 * implement usefull method adapter classes, just by overriding the necessary 36 * methods. 37 * 38 * @author Eric Bruneton 39 */ 40 public class MethodAdapter implements MethodVisitor { 41 42 /** 43 * The {@link MethodVisitor} to which this adapter delegates calls. 44 */ 45 protected MethodVisitor mv; 46 47 /** 48 * Constructs a new {@link MethodAdapter} object. 49 * 50 * @param mv the code visitor to which this adapter must delegate calls. 51 */ MethodAdapter(final MethodVisitor mv)52 public MethodAdapter(final MethodVisitor mv) { 53 this.mv = mv; 54 } 55 visitAnnotationDefault()56 public AnnotationVisitor visitAnnotationDefault() { 57 return mv.visitAnnotationDefault(); 58 } 59 visitAnnotation( final String desc, final boolean visible)60 public AnnotationVisitor visitAnnotation( 61 final String desc, 62 final boolean visible) 63 { 64 return mv.visitAnnotation(desc, visible); 65 } 66 visitParameterAnnotation( final int parameter, final String desc, final boolean visible)67 public AnnotationVisitor visitParameterAnnotation( 68 final int parameter, 69 final String desc, 70 final boolean visible) 71 { 72 return mv.visitParameterAnnotation(parameter, desc, visible); 73 } 74 visitAttribute(final Attribute attr)75 public void visitAttribute(final Attribute attr) { 76 mv.visitAttribute(attr); 77 } 78 visitCode()79 public void visitCode() { 80 mv.visitCode(); 81 } 82 visitInsn(final int opcode)83 public void visitInsn(final int opcode) { 84 mv.visitInsn(opcode); 85 } 86 visitIntInsn(final int opcode, final int operand)87 public void visitIntInsn(final int opcode, final int operand) { 88 mv.visitIntInsn(opcode, operand); 89 } 90 visitVarInsn(final int opcode, final int var)91 public void visitVarInsn(final int opcode, final int var) { 92 mv.visitVarInsn(opcode, var); 93 } 94 visitTypeInsn(final int opcode, final String desc)95 public void visitTypeInsn(final int opcode, final String desc) { 96 mv.visitTypeInsn(opcode, desc); 97 } 98 visitFieldInsn( final int opcode, final String owner, final String name, final String desc)99 public void visitFieldInsn( 100 final int opcode, 101 final String owner, 102 final String name, 103 final String desc) 104 { 105 mv.visitFieldInsn(opcode, owner, name, desc); 106 } 107 visitMethodInsn( final int opcode, final String owner, final String name, final String desc)108 public void visitMethodInsn( 109 final int opcode, 110 final String owner, 111 final String name, 112 final String desc) 113 { 114 mv.visitMethodInsn(opcode, owner, name, desc); 115 } 116 visitJumpInsn(final int opcode, final Label label)117 public void visitJumpInsn(final int opcode, final Label label) { 118 mv.visitJumpInsn(opcode, label); 119 } 120 visitLabel(final Label label)121 public void visitLabel(final Label label) { 122 mv.visitLabel(label); 123 } 124 visitLdcInsn(final Object cst)125 public void visitLdcInsn(final Object cst) { 126 mv.visitLdcInsn(cst); 127 } 128 visitIincInsn(final int var, final int increment)129 public void visitIincInsn(final int var, final int increment) { 130 mv.visitIincInsn(var, increment); 131 } 132 visitTableSwitchInsn( final int min, final int max, final Label dflt, final Label labels[])133 public void visitTableSwitchInsn( 134 final int min, 135 final int max, 136 final Label dflt, 137 final Label labels[]) 138 { 139 mv.visitTableSwitchInsn(min, max, dflt, labels); 140 } 141 visitLookupSwitchInsn( final Label dflt, final int keys[], final Label labels[])142 public void visitLookupSwitchInsn( 143 final Label dflt, 144 final int keys[], 145 final Label labels[]) 146 { 147 mv.visitLookupSwitchInsn(dflt, keys, labels); 148 } 149 visitMultiANewArrayInsn(final String desc, final int dims)150 public void visitMultiANewArrayInsn(final String desc, final int dims) { 151 mv.visitMultiANewArrayInsn(desc, dims); 152 } 153 visitTryCatchBlock( final Label start, final Label end, final Label handler, final String type)154 public void visitTryCatchBlock( 155 final Label start, 156 final Label end, 157 final Label handler, 158 final String type) 159 { 160 mv.visitTryCatchBlock(start, end, handler, type); 161 } 162 visitLocalVariable( final String name, final String desc, final String signature, final Label start, final Label end, final int index)163 public void visitLocalVariable( 164 final String name, 165 final String desc, 166 final String signature, 167 final Label start, 168 final Label end, 169 final int index) 170 { 171 mv.visitLocalVariable(name, desc, signature, start, end, index); 172 } 173 visitLineNumber(final int line, final Label start)174 public void visitLineNumber(final int line, final Label start) { 175 mv.visitLineNumber(line, start); 176 } 177 visitMaxs(final int maxStack, final int maxLocals)178 public void visitMaxs(final int maxStack, final int maxLocals) { 179 mv.visitMaxs(maxStack, maxLocals); 180 } 181 visitEnd()182 public void visitEnd() { 183 mv.visitEnd(); 184 } 185 } 186