/*
* Copyright (c) 2017, 2019, 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;
/**
* LDC2_W - Push long or double from constant pool
*
* <PRE>Stack: ... -> ..., item.word1, item.word2</PRE>
*
* @version $Id$
* @LastModified: Jun 2019
*/
public class LDC2_W extends CPInstruction implements PushInstruction {
/**
* Empty constructor needed for Instruction.readInstruction.
* Not to be used otherwise.
*/
LDC2_W() {
}
public LDC2_W(final int index) {
super(com.sun.org.apache.bcel.internal.Const.LDC2_W, index);
}
@Override
public Type getType( final ConstantPoolGen cpg ) {
switch (cpg.getConstantPool().getConstant(super.getIndex()).getTag()) {
case com.sun.org.apache.bcel.internal.Const.CONSTANT_Long:
return Type.LONG;
case com.sun.org.apache.bcel.internal.Const.CONSTANT_Double:
return Type.DOUBLE;
default: // Never reached
throw new RuntimeException("Unknown constant type " + super.getOpcode());
}
}
public Number getValue( final ConstantPoolGen cpg ) {
final com.sun.org.apache.bcel.internal.classfile.Constant c = cpg.getConstantPool().getConstant(super.getIndex());
switch (c.getTag()) {
case com.sun.org.apache.bcel.internal.Const.CONSTANT_Long:
return ((com.sun.org.apache.bcel.internal.classfile.ConstantLong) c).getBytes();
case com.sun.org.apache.bcel.internal.Const.CONSTANT_Double:
return ((com.sun.org.apache.bcel.internal.classfile.ConstantDouble) c).getBytes();
default: // Never reached
throw new RuntimeException("Unknown or invalid constant type at " + super.getIndex());
}
}
/**
* 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,
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