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.optimizer; 31 32 import org.objectweb.asm.AnnotationVisitor; 33 import org.objectweb.asm.Label; 34 import org.objectweb.asm.MethodAdapter; 35 import org.objectweb.asm.MethodVisitor; 36 37 /** 38 * A {@link MethodAdapter} that renames fields and methods, and removes debug 39 * info. 40 * 41 * @author Eric Bruneton 42 */ 43 public class MethodOptimizer extends MethodAdapter { 44 45 private NameMapping mapping; 46 MethodOptimizer(final MethodVisitor mv, final NameMapping mapping)47 public MethodOptimizer(final MethodVisitor mv, final NameMapping mapping) { 48 super(mv); 49 this.mapping = mapping; 50 } 51 52 // ------------------------------------------------------------------------ 53 // Overriden methods 54 // ------------------------------------------------------------------------ 55 visitAnnotationDefault()56 public AnnotationVisitor visitAnnotationDefault() { 57 throw new UnsupportedOperationException(); 58 } 59 visitParameterAnnotation( final int parameter, final String desc, final boolean visible)60 public AnnotationVisitor visitParameterAnnotation( 61 final int parameter, 62 final String desc, 63 final boolean visible) 64 { 65 throw new UnsupportedOperationException(); 66 } 67 visitTypeInsn(final int opcode, final String desc)68 public void visitTypeInsn(final int opcode, final String desc) { 69 mv.visitTypeInsn(opcode, desc.startsWith("[") 70 ? mapping.fix(desc) 71 : mapping.map(desc)); 72 } 73 visitFieldInsn( final int opcode, final String owner, final String name, final String desc)74 public void visitFieldInsn( 75 final int opcode, 76 final String owner, 77 final String name, 78 final String desc) 79 { 80 mv.visitFieldInsn(opcode, mapping.map(owner), mapping.map(owner + "." 81 + name), mapping.fix(desc)); 82 } 83 visitMethodInsn( final int opcode, final String owner, final String name, final String desc)84 public void visitMethodInsn( 85 final int opcode, 86 final String owner, 87 final String name, 88 final String desc) 89 { 90 mv.visitMethodInsn(opcode, mapping.map(owner), mapping.map(owner + "." 91 + name + desc), mapping.fix(desc)); 92 } 93 visitLocalVariable( final String name, final String desc, final String signature, final Label start, final Label end, final int index)94 public void visitLocalVariable( 95 final String name, 96 final String desc, 97 final String signature, 98 final Label start, 99 final Label end, 100 final int index) 101 { 102 // remove debug info 103 } 104 visitLineNumber(final int line, final Label start)105 public void visitLineNumber(final int line, final Label start) { 106 // remove debug info 107 } 108 } 109