Mercurial > hg > openjdk > jdk9 > jaxp
view src/java.xml/share/classes/com/sun/org/apache/bcel/internal/generic/LDC2_W.java @ 1113:2fdbfbde3bc0
8162572: Update License Header for all JAXP sources
Reviewed-by: lancea
author | joehw |
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date | Mon, 17 Apr 2017 16:24:10 -0700 |
parents | 2bfaf29cc90b |
children |
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/* * reserved comment block * DO NOT REMOVE OR ALTER! */ /* * 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> * * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> */ public class LDC2_W extends CPInstruction implements PushInstruction, TypedInstruction { /** * Empty constructor needed for the Class.newInstance() statement in * Instruction.readInstruction(). Not to be used otherwise. */ LDC2_W() {} public LDC2_W(int index) { super(com.sun.org.apache.bcel.internal.Constants.LDC2_W, index); } public Type getType(ConstantPoolGen cpg) { switch(cpg.getConstantPool().getConstant(index).getTag()) { case com.sun.org.apache.bcel.internal.Constants.CONSTANT_Long: return Type.LONG; case com.sun.org.apache.bcel.internal.Constants.CONSTANT_Double: return Type.DOUBLE; default: // Never reached throw new RuntimeException("Unknown constant type " + opcode); } } public Number getValue(ConstantPoolGen cpg) { com.sun.org.apache.bcel.internal.classfile.Constant c = cpg.getConstantPool().getConstant(index); switch(c.getTag()) { case com.sun.org.apache.bcel.internal.Constants.CONSTANT_Long: return new Long(((com.sun.org.apache.bcel.internal.classfile.ConstantLong)c).getBytes()); case com.sun.org.apache.bcel.internal.Constants.CONSTANT_Double: return new Double(((com.sun.org.apache.bcel.internal.classfile.ConstantDouble)c).getBytes()); default: // Never reached throw new RuntimeException("Unknown or invalid constant type at " + index); } } /** * 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.visitStackProducer(this); v.visitPushInstruction(this); v.visitTypedInstruction(this); v.visitCPInstruction(this); v.visitLDC2_W(this); } }