68 lines
1.8 KiB
Java
68 lines
1.8 KiB
Java
/*******************************************************************************
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* Copyright (c) 2002 - 2006 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package com.ibm.wala.ssa;
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/**
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* Unconditional branch instruction for SSA form.
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*/
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public class SSAGotoInstruction extends SSAInstruction {
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private final int target;
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public SSAGotoInstruction(int iindex, int target) {
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super(iindex);
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this.target = target;
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}
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/**
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* getTarget returns the IIndex for the Goto-target. Not to be confused with
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* the array-index in InducedCFG.getStatements()
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*/
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public int getTarget() {
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return this.target;
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}
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@Override
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public SSAInstruction copyForSSA(SSAInstructionFactory insts, int[] defs, int[] uses) {
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return insts.GotoInstruction(iindex, target);
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}
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@Override
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public String toString(SymbolTable symbolTable) {
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return "goto (from iindex= " + this.iindex + " to iindex = " + this.target + ")";
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}
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/**
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* @see com.ibm.wala.ssa.SSAInstruction#visit(IVisitor)
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* @throws IllegalArgumentException
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* if v is null
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*/
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@Override
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public void visit(IVisitor v) {
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if (v == null) {
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throw new IllegalArgumentException("v is null");
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}
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v.visitGoto(this);
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}
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@Override
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public int hashCode() {
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return 1409 + 17 * target;
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}
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/*
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* @see com.ibm.wala.ssa.Instruction#isFallThrough()
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*/
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@Override
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public boolean isFallThrough() {
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return false;
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}
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}
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