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127 lines
4.5 KiB
127 lines
4.5 KiB
package com.fr.third.aspectj.apache.bcel.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 java.io.DataOutputStream; |
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import java.io.IOException; |
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import com.fr.third.aspectj.apache.bcel.Constants; |
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import com.fr.third.aspectj.apache.bcel.classfile.ConstantPool; |
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/** |
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* INVOKEINTERFACE - Invoke interface method |
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* |
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* <PRE> |
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* Stack: ..., objectref, [arg1, [arg2 ...]] -> ... |
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* </PRE> |
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* |
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* @version $Id: INVOKEINTERFACE.java,v 1.4 2009/10/05 17:35:36 aclement Exp $ |
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* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> |
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*/ |
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public final class INVOKEINTERFACE extends InvokeInstruction { |
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private int nargs; // Number of arguments on stack (number of stack slots), called "count" in vmspec2 |
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public INVOKEINTERFACE(int index, int nargs, int zerobyte) { |
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super(INVOKEINTERFACE, index); |
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if (nargs < 1) { |
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throw new ClassGenException("Number of arguments must be > 0 " + nargs); |
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} |
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this.nargs = nargs; |
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} |
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/** |
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* Dump instruction as byte code to stream out. |
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* |
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* @param out Output stream |
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*/ |
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public void dump(DataOutputStream out) throws IOException { |
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out.writeByte(opcode); |
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out.writeShort(index); |
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out.writeByte(nargs); |
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out.writeByte(0); |
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} |
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/** |
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* The <B>count</B> argument according to the Java Language Specification, Second Edition. |
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*/ |
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public int getCount() { |
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return nargs; |
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} |
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/** |
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* @return mnemonic for instruction with symbolic references resolved |
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*/ |
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public String toString(ConstantPool cp) { |
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return super.toString(cp) + " " + nargs; |
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} |
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public int consumeStack(ConstantPool cpg) { // nargs is given in byte-code |
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return nargs; // nargs includes this reference |
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} |
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public boolean equals(Object other) { |
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if (!(other instanceof INVOKEINTERFACE)) { |
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return false; |
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} |
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INVOKEINTERFACE o = (INVOKEINTERFACE) other; |
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return o.opcode == opcode && o.index == index && o.nargs == nargs; |
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} |
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public int hashCode() { |
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return opcode * 37 + index * (nargs + 17); |
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} |
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}
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