/*
* Copyright 2000-2004 The Apache Software Foundation
*
* Licensed 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 org.apache.bcel5_2_0.generic;
import java.io.DataOutputStream;
import java.io.IOException;
import org.apache.bcel5_2_0.util.ByteSequence;
/**
* BIPUSH - Push byte on stack
*
* <PRE>Stack: ... -> ..., value</PRE>
*
* @version $Id: BIPUSH.java 386056 2006-03-15 11:31:56Z tcurdt $
* @author <A HREF="mailto:m.dahm@gmx.de">M. Dahm</A>
*/
public class BIPUSH extends Instruction implements ConstantPushInstruction {
private byte b;
/**
* Empty constructor needed for the Class.newInstance() statement in
* Instruction.readInstruction(). Not to be used otherwise.
*/
BIPUSH() {
}
/** Push byte on stack
*/
public BIPUSH(byte b) {
super(org.apache.bcel5_2_0.Constants.BIPUSH, (short) 2);
this.b = b;
}
/**
* Dump instruction as byte code to stream out.
*/
public void dump( DataOutputStream out ) throws IOException {
super.dump(out);
out.writeByte(b);
}
/**
* @return mnemonic for instruction
*/
public String toString( boolean verbose ) {
return super.toString(verbose) + " " + b;
}
/**
* Read needed data (e.g. index) from file.
*/
protected void initFromFile( ByteSequence bytes, boolean wide ) throws IOException {
length = 2;
b = bytes.readByte();
}
public Number getValue() {
return new Integer(b);
}
/** @return Type.BYTE
*/
public Type getType( 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
*/
public void accept( Visitor v ) {
v.visitPushInstruction(this);
v.visitStackProducer(this);
v.visitTypedInstruction(this);
v.visitConstantPushInstruction(this);
v.visitBIPUSH(this);
}
}