mirror of
https://github.com/eclipse-aspectj/aspectj.git
synced 2024-08-13 14:13:07 +02:00
460 lines
12 KiB
Java
460 lines
12 KiB
Java
/* ====================================================================
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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, i 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, i 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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* "i product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, i 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 i 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 i 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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* i 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 i 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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* i 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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package org.aspectj.apache.bcel.verifier;
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import org.aspectj.apache.bcel.Constants;
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import org.aspectj.apache.bcel.generic.FieldInstruction;
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import org.aspectj.apache.bcel.generic.InstVisitor;
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import org.aspectj.apache.bcel.generic.Instruction;
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import org.aspectj.apache.bcel.generic.InstructionBranch;
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import org.aspectj.apache.bcel.generic.InstructionLV;
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import org.aspectj.apache.bcel.generic.InvokeInstruction;
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/**
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* Traverse an instruction
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*
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* @author Andy Clement
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*/
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public class InstructionWalker implements Constants {
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/**
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* Call corresponding visitor method(s). The order is: Call visitor methods of implemented interfaces first, then call methods
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* according to the class hierarchy in descending order, i.e., the most specific visitXXX() call comes last.
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*
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* @param i the instruction to visit
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* @param v Visitor object
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*/
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public static void accept(Instruction i, InstVisitor v) {
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switch (i.opcode) {
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case IMPDEP1:
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v.visitIMPDEP1(i);
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break;
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case IMPDEP2:
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v.visitIMPDEP2(i);
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break;
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case MONITORENTER:
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v.visitExceptionThrower(i);
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v.visitStackConsumer(i);
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v.visitMONITORENTER(i);
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break;
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case MONITOREXIT:
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v.visitExceptionThrower(i);
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v.visitStackConsumer(i);
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v.visitMONITOREXIT(i);
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break;
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case LCMP:
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v.visitTypedInstruction(i);
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v.visitStackProducer(i);
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v.visitStackConsumer(i);
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v.visitLCMP(i);
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break;
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case FCMPL:
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v.visitTypedInstruction(i);
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v.visitStackProducer(i);
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v.visitStackConsumer(i);
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v.visitFCMPL(i);
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break;
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case FCMPG:
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v.visitTypedInstruction(i);
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v.visitStackProducer(i);
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v.visitStackConsumer(i);
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v.visitFCMPG(i);
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break;
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case DCMPL:
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v.visitTypedInstruction(i);
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v.visitStackProducer(i);
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v.visitStackConsumer(i);
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v.visitDCMPL(i);
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break;
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case DCMPG:
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v.visitTypedInstruction(i);
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v.visitStackProducer(i);
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v.visitStackConsumer(i);
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v.visitDCMPG(i);
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break;
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case NOP:
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v.visitNOP(i);
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break;
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case BREAKPOINT:
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v.visitBREAKPOINT(i);
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break;
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case SWAP:
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v.visitStackConsumer(i);
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v.visitStackProducer(i);
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v.visitStackInstruction(i);
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v.visitSWAP(i);
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break;
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case POP:
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v.visitStackConsumer(i);
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v.visitPopInstruction(i);
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v.visitStackInstruction(i);
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v.visitPOP(i);
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break;
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case POP2:
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v.visitStackConsumer(i);
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v.visitPopInstruction(i);
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v.visitStackInstruction(i);
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v.visitPOP2(i);
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break;
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case DUP2_X1:
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v.visitStackInstruction(i);
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v.visitDUP2_X1(i);
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break;
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case DUP2_X2:
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v.visitStackInstruction(i);
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v.visitDUP2_X2(i);
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break;
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case DUP2:
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v.visitStackProducer(i);
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v.visitPushInstruction(i);
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v.visitStackInstruction(i);
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v.visitDUP2(i);
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break;
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case DUP_X1:
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v.visitStackInstruction(i);
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v.visitDUP_X1(i);
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break;
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case DUP_X2:
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v.visitStackInstruction(i);
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v.visitDUP_X2(i);
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break;
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case DUP:
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v.visitStackProducer(i);
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v.visitPushInstruction(i);
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v.visitStackInstruction(i);
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v.visitDUP(i);
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break;
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case BASTORE:
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v.visitStackConsumer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitBASTORE(i);
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break;
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case CASTORE:
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v.visitStackConsumer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitCASTORE(i);
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break;
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case SASTORE:
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v.visitStackConsumer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitSASTORE(i);
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break;
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case DASTORE:
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v.visitStackConsumer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitDASTORE(i);
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break;
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case FASTORE:
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v.visitStackConsumer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitFASTORE(i);
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break;
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case LASTORE:
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v.visitStackConsumer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitLASTORE(i);
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break;
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case IASTORE:
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v.visitStackConsumer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitIASTORE(i);
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break;
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case AASTORE:
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v.visitStackConsumer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitAASTORE(i);
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break;
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case SALOAD:
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v.visitStackProducer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitSALOAD(i);
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break;
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case CALOAD:
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v.visitStackProducer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitCALOAD(i);
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break;
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case DALOAD:
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v.visitStackProducer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitDALOAD(i);
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break;
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case FALOAD:
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v.visitStackProducer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitFALOAD(i);
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break;
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case LALOAD:
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v.visitStackProducer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitLALOAD(i);
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break;
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case AALOAD:
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v.visitStackProducer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitAALOAD(i);
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break;
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case ATHROW:
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v.visitUnconditionalBranch(i);
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v.visitExceptionThrower(i);
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v.visitATHROW(i);
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break;
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case ACONST_NULL:
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v.visitStackProducer(i);
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v.visitPushInstruction(i);
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v.visitTypedInstruction(i);
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v.visitACONST_NULL(i);
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break;
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case ICONST_M1:
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case ICONST_0:
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case ICONST_1:
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case ICONST_2:
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case ICONST_3:
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case ICONST_4:
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case ICONST_5:
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v.visitPushInstruction(i);
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v.visitStackProducer(i);
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v.visitTypedInstruction(i);
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v.visitConstantPushInstruction(i);
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v.visitICONST(i);
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break;
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case LCONST_0:
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case LCONST_1:
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v.visitPushInstruction(i);
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v.visitStackProducer(i);
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v.visitTypedInstruction(i);
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v.visitConstantPushInstruction(i);
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v.visitLCONST(i);
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break;
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case FCONST_0:
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case FCONST_1:
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case FCONST_2:
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v.visitPushInstruction(i);
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v.visitStackProducer(i);
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v.visitTypedInstruction(i);
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v.visitConstantPushInstruction(i);
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v.visitFCONST(i);
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break;
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case DCONST_0:
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case DCONST_1:
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v.visitPushInstruction(i);
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v.visitStackProducer(i);
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v.visitTypedInstruction(i);
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v.visitConstantPushInstruction(i);
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v.visitDCONST(i);
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break;
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case BALOAD:
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v.visitStackProducer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitBALOAD(i);
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break;
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case IALOAD:
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v.visitStackProducer(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitArrayInstruction(i);
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v.visitIALOAD(i);
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break;
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case BIPUSH:
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v.visitPushInstruction(i);
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v.visitStackProducer(i);
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v.visitTypedInstruction(i);
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v.visitConstantPushInstruction(i);
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v.visitBIPUSH(i);
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break;
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case SIPUSH:
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v.visitPushInstruction(i);
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v.visitStackProducer(i);
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v.visitTypedInstruction(i);
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v.visitConstantPushInstruction(i);
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v.visitSIPUSH(i);
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break;
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case LDC:
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case LDC_W:
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v.visitStackProducer(i);
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v.visitPushInstruction(i);
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitCPInstruction(i);
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v.visitLDC(i);
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break;
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case LDC2_W:
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v.visitStackProducer(i);
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v.visitPushInstruction(i);
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v.visitTypedInstruction(i);
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v.visitCPInstruction(i);
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v.visitLDC2_W(i);
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break;
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case ARRAYLENGTH:
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v.visitExceptionThrower(i);
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v.visitStackProducer(i);
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v.visitARRAYLENGTH(i);
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break;
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case ASTORE_0:
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v.visitStackConsumer(i);
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v.visitPopInstruction(i);
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v.visitStoreInstruction(i);
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v.visitTypedInstruction(i);
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v.visitLocalVariableInstruction((InstructionLV) i);
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v.visitStoreInstruction(i);
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v.visitASTORE(i);
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break;
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case ALOAD_0:
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v.visitStackConsumer(i);
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v.visitPopInstruction(i);
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v.visitStoreInstruction(i);
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v.visitTypedInstruction(i);
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v.visitLocalVariableInstruction((InstructionLV) i);
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v.visitStoreInstruction(i);
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v.visitALOAD(i);
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break;
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// for store instructions: ISTORE > ASTORE_3 - needs to visit the instruction too
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// v.visitStackConsumer(i);
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// v.visitPopInstruction(i);
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// v.visitStoreInstruction(i);
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// v.visitTypedInstruction(i);
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// v.visitLocalVariableInstruction(i);
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// v.visitStoreInstruction(i);
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// for load instructions: ILOAD > ALOAD_3 - needs to visit the instruction too
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// v.visitStackProducer(i);
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// v.visitPushInstruction(i);
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// v.visitTypedInstruction(i);
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// v.visitLocalVariableInstruction(i);
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// v.visitLoadInstruction(i);
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// for conversion instructions: (all 15 of them) - needs to visit conversion instruction too
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// v.visitTypedInstruction(i);
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// v.visitStackProducer(i);
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// v.visitStackConsumer(i);
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// v.visitConversionInstruction(i);
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// arithmetic instructions - need to visit the instructions too (iadd etc)
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// v.visitTypedInstruction(i);
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// v.visitStackProducer(i);
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// v.visitStackConsumer(i);
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// v.visitArithmeticInstruction(i);
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case INVOKESTATIC:
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitStackConsumer(i);
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v.visitStackProducer(i);
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v.visitLoadClass(i);
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v.visitCPInstruction(i);
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v.visitFieldOrMethod(i);
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v.visitInvokeInstruction((InvokeInstruction) i);
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v.visitINVOKESTATIC((InvokeInstruction) i);
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break;
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case GOTO:
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v.visitVariableLengthInstruction(i);
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v.visitUnconditionalBranch(i);
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v.visitBranchInstruction((InstructionBranch) i);
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v.visitGotoInstruction(i);
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v.visitGOTO(i);
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break;
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case PUTSTATIC:
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v.visitExceptionThrower(i);
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v.visitStackConsumer(i);
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v.visitPopInstruction(i);
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v.visitTypedInstruction(i);
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v.visitLoadClass(i);
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v.visitCPInstruction(i);
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v.visitFieldOrMethod(i);
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v.visitFieldInstruction(i);
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v.visitPUTSTATIC((FieldInstruction) i);
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break;
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case RETURN:
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v.visitExceptionThrower(i);
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v.visitTypedInstruction(i);
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v.visitStackConsumer(i);
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v.visitReturnInstruction(i);
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v.visitRETURN(i);
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break;
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default:
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throw new IllegalStateException("visiting not yet implemented for " + i.getName().toUpperCase());
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}
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}
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}
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