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/*
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* reserved comment block
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* DO NOT REMOVE OR ALTER!
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*/
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package com.sun.org.apache.bcel.internal.generic;
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/* ====================================================================
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* The Apache Software License, Version 1.1
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*
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* Copyright (c) 2001 The Apache Software Foundation. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Apache" and "Apache Software Foundation" and
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* "Apache BCEL" must not be used to endorse or promote products
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* derived from this software without prior written permission. For
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* written permission, please contact apache@apache.org.
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*
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* 5. Products derived from this software may not be called "Apache",
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* "Apache BCEL", nor may "Apache" appear in their name, without
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* prior written permission of the Apache Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*/
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import com.sun.org.apache.bcel.internal.Constants;
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/**
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* Super class for the x2y family of instructions.
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*
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* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
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*/
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public abstract class ConversionInstruction extends Instruction
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implements TypedInstruction, StackProducer, StackConsumer {
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/**
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* Empty constructor needed for the Class.newInstance() statement in
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* Instruction.readInstruction(). Not to be used otherwise.
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*/
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ConversionInstruction() {}
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/**
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* @param opcode opcode of instruction
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*/
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protected ConversionInstruction(short opcode) {
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super(opcode, (short)1);
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}
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/** @return type associated with the instruction
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*/
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public Type getType(ConstantPoolGen cp) {
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switch(opcode) {
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case Constants.D2I: case Constants.F2I: case Constants.L2I:
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return Type.INT;
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case Constants.D2F: case Constants.I2F: case Constants.L2F:
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return Type.FLOAT;
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case Constants.D2L: case Constants.F2L: case Constants.I2L:
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return Type.LONG;
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case Constants.F2D: case Constants.I2D: case Constants.L2D:
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return Type.DOUBLE;
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case Constants.I2B:
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return Type.BYTE;
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case Constants.I2C:
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return Type.CHAR;
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case Constants.I2S:
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return Type.SHORT;
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default: // Never reached
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throw new ClassGenException("Unknown type " + opcode);
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}
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}
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}
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