1/* 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. Oracle designates this 7 * particular file as subject to the "Classpath" exception as provided 8 * by Oracle in the LICENSE file that accompanied this code. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 */ 24 25/* 26 * This file is available under and governed by the GNU General Public 27 * License version 2 only, as published by the Free Software Foundation. 28 * However, the following notice accompanied the original version of this 29 * file: 30 * 31 * ASM: a very small and fast Java bytecode manipulation framework 32 * Copyright (c) 2000-2011 INRIA, France Telecom 33 * All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 1. Redistributions of source code must retain the above copyright 39 * notice, this list of conditions and the following disclaimer. 40 * 2. Redistributions in binary form must reproduce the above copyright 41 * notice, this list of conditions and the following disclaimer in the 42 * documentation and/or other materials provided with the distribution. 43 * 3. Neither the name of the copyright holders nor the names of its 44 * contributors may be used to endorse or promote products derived from 45 * this software without specific prior written permission. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 48 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 50 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 51 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 52 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 53 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 54 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 55 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 56 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 57 * THE POSSIBILITY OF SUCH DAMAGE. 58 */ 59package jdk.internal.org.objectweb.asm.tree; 60 61import java.util.Map; 62 63import jdk.internal.org.objectweb.asm.MethodVisitor; 64 65/** 66 * A node that represents a local variable instruction. A local variable 67 * instruction is an instruction that loads or stores the value of a local 68 * variable. 69 * 70 * @author Eric Bruneton 71 */ 72public class VarInsnNode extends AbstractInsnNode { 73 74 /** 75 * The operand of this instruction. This operand is the index of a local 76 * variable. 77 */ 78 public int var; 79 80 /** 81 * Constructs a new {@link VarInsnNode}. 82 * 83 * @param opcode 84 * the opcode of the local variable instruction to be 85 * constructed. This opcode must be ILOAD, LLOAD, FLOAD, DLOAD, 86 * ALOAD, ISTORE, LSTORE, FSTORE, DSTORE, ASTORE or RET. 87 * @param var 88 * the operand of the instruction to be constructed. This operand 89 * is the index of a local variable. 90 */ 91 public VarInsnNode(final int opcode, final int var) { 92 super(opcode); 93 this.var = var; 94 } 95 96 /** 97 * Sets the opcode of this instruction. 98 * 99 * @param opcode 100 * the new instruction opcode. This opcode must be ILOAD, LLOAD, 101 * FLOAD, DLOAD, ALOAD, ISTORE, LSTORE, FSTORE, DSTORE, ASTORE or 102 * RET. 103 */ 104 public void setOpcode(final int opcode) { 105 this.opcode = opcode; 106 } 107 108 @Override 109 public int getType() { 110 return VAR_INSN; 111 } 112 113 @Override 114 public void accept(final MethodVisitor mv) { 115 mv.visitVarInsn(opcode, var); 116 acceptAnnotations(mv); 117 } 118 119 @Override 120 public AbstractInsnNode clone(final Map<LabelNode, LabelNode> labels) { 121 return new VarInsnNode(opcode, var).cloneAnnotations(this); 122 } 123} 124