| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| */ |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.sun.org.apache.bcel.internal.generic; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| import com.sun.org.apache.bcel.internal.util.ByteSequence; |
| |
| /** |
| * BIPUSH - Push byte on stack |
| * |
| * <PRE>Stack: ... -> ..., value</PRE> |
| * |
| */ |
| public class BIPUSH extends Instruction implements ConstantPushInstruction { |
| |
| private byte b; |
| |
| |
| /** |
| * Empty constructor needed for Instruction.readInstruction. |
| * Not to be used otherwise. |
| */ |
| BIPUSH() { |
| } |
| |
| |
| /** Push byte on stack |
| */ |
| public BIPUSH(final byte b) { |
| super(com.sun.org.apache.bcel.internal.Const.BIPUSH, (short) 2); |
| this.b = b; |
| } |
| |
| |
| /** |
| * Dump instruction as byte code to stream out. |
| */ |
| @Override |
| public void dump( final DataOutputStream out ) throws IOException { |
| super.dump(out); |
| out.writeByte(b); |
| } |
| |
| |
| /** |
| * @return mnemonic for instruction |
| */ |
| @Override |
| public String toString( final boolean verbose ) { |
| return super.toString(verbose) + " " + b; |
| } |
| |
| |
| /** |
| * Read needed data (e.g. index) from file. |
| */ |
| @Override |
| protected void initFromFile( final ByteSequence bytes, final boolean wide ) throws IOException { |
| super.setLength(2); |
| b = bytes.readByte(); |
| } |
| |
| |
| @Override |
| public Number getValue() { |
| return Integer.valueOf(b); |
| } |
| |
| |
| /** @return Type.BYTE |
| */ |
| @Override |
| public Type getType( final ConstantPoolGen cp ) { |
| return Type.BYTE; |
| } |
| |
| |
| /** |
| * Call corresponding visitor method(s). The order is: |
| * Call visitor methods of implemented interfaces first, then |
| * call methods according to the class hierarchy in descending order, |
| * i.e., the most specific visitXXX() call comes last. |
| * |
| * @param v Visitor object |
| */ |
| @Override |
| public void accept( final Visitor v ) { |
| v.visitPushInstruction(this); |
| v.visitStackProducer(this); |
| v.visitTypedInstruction(this); |
| v.visitConstantPushInstruction(this); |
| v.visitBIPUSH(this); |
| } |
| } |