1 // ASM: a very small and fast Java bytecode manipulation framework 2 // Copyright (c) 2000-2011 INRIA, France Telecom 3 // All rights reserved. 4 // 5 // Redistribution and use in source and binary forms, with or without 6 // modification, are permitted provided that the following conditions 7 // are met: 8 // 1. Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // 2. Redistributions in binary form must reproduce the above copyright 11 // notice, this list of conditions and the following disclaimer in the 12 // documentation and/or other materials provided with the distribution. 13 // 3. Neither the name of the copyright holders nor the names of its 14 // contributors may be used to endorse or promote products derived from 15 // this software without specific prior written permission. 16 // 17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 21 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 27 // THE POSSIBILITY OF SUCH DAMAGE. 28 package org.objectweb.asm.tree; 29 30 import java.util.Map; 31 import org.objectweb.asm.MethodVisitor; 32 33 /** 34 * A node that represents a field instruction. A field instruction is an instruction that loads or 35 * stores the value of a field of an object. 36 * 37 * @author Eric Bruneton 38 */ 39 public class FieldInsnNode extends AbstractInsnNode { 40 41 /** 42 * The internal name of the field's owner class (see {@link 43 * org.objectweb.asm.Type#getInternalName()}). 44 */ 45 public String owner; 46 47 /** The field's name. */ 48 public String name; 49 50 /** The field's descriptor (see {@link org.objectweb.asm.Type}). */ 51 public String desc; 52 53 /** 54 * Constructs a new {@link FieldInsnNode}. 55 * 56 * @param opcode the opcode of the type instruction to be constructed. This opcode must be 57 * GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD. 58 * @param owner the internal name of the field's owner class (see {@link 59 * org.objectweb.asm.Type#getInternalName()}). 60 * @param name the field's name. 61 * @param descriptor the field's descriptor (see {@link org.objectweb.asm.Type}). 62 */ FieldInsnNode( final int opcode, final String owner, final String name, final String descriptor)63 public FieldInsnNode( 64 final int opcode, final String owner, final String name, final String descriptor) { 65 super(opcode); 66 this.owner = owner; 67 this.name = name; 68 this.desc = descriptor; 69 } 70 71 /** 72 * Sets the opcode of this instruction. 73 * 74 * @param opcode the new instruction opcode. This opcode must be GETSTATIC, PUTSTATIC, GETFIELD or 75 * PUTFIELD. 76 */ setOpcode(final int opcode)77 public void setOpcode(final int opcode) { 78 this.opcode = opcode; 79 } 80 81 @Override getType()82 public int getType() { 83 return FIELD_INSN; 84 } 85 86 @Override accept(final MethodVisitor methodVisitor)87 public void accept(final MethodVisitor methodVisitor) { 88 methodVisitor.visitFieldInsn(opcode, owner, name, desc); 89 acceptAnnotations(methodVisitor); 90 } 91 92 @Override clone(final Map<LabelNode, LabelNode> clonedLabels)93 public AbstractInsnNode clone(final Map<LabelNode, LabelNode> clonedLabels) { 94 return new FieldInsnNode(opcode, owner, name, desc).cloneAnnotations(this); 95 } 96 } 97