001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 * 017 */ 018package org.apache.bcel.generic; 019 020/** 021 * Denotes an unparameterized instruction to store a value into a local variable, 022 * e.g. ISTORE. 023 * 024 */ 025public abstract class StoreInstruction extends LocalVariableInstruction implements PopInstruction { 026 027 /** 028 * Empty constructor needed for Instruction.readInstruction. 029 * Not to be used otherwise. 030 * tag and length are defined in readInstruction and initFromFile, respectively. 031 */ 032 StoreInstruction(final short canon_tag, final short c_tag) { 033 super(canon_tag, c_tag); 034 } 035 036 037 /** 038 * @param opcode Instruction opcode 039 * @param c_tag Instruction number for compact version, ASTORE_0, e.g. 040 * @param n local variable index (unsigned short) 041 */ 042 protected StoreInstruction(final short opcode, final short c_tag, final int n) { 043 super(opcode, c_tag, n); 044 } 045 046 047 /** 048 * Call corresponding visitor method(s). The order is: 049 * Call visitor methods of implemented interfaces first, then 050 * call methods according to the class hierarchy in descending order, 051 * i.e., the most specific visitXXX() call comes last. 052 * 053 * @param v Visitor object 054 */ 055 @Override 056 public void accept( final Visitor v ) { 057 v.visitStackConsumer(this); 058 v.visitPopInstruction(this); 059 v.visitTypedInstruction(this); 060 v.visitLocalVariableInstruction(this); 061 v.visitStoreInstruction(this); 062 } 063}