172 lines
5.6 KiB
Java
172 lines
5.6 KiB
Java
/******************************************************************************
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* Copyright (c) 2002 - 2014 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.cast.js.ipa.modref;
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import java.util.Collection;
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import com.ibm.wala.cast.ipa.callgraph.AstHeapModel;
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import com.ibm.wala.cast.ipa.modref.AstModRef;
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import com.ibm.wala.cast.js.ssa.JSInstructionVisitor;
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import com.ibm.wala.cast.js.ssa.JavaScriptCheckReference;
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import com.ibm.wala.cast.js.ssa.JavaScriptInstanceOf;
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import com.ibm.wala.cast.js.ssa.JavaScriptInvoke;
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import com.ibm.wala.cast.js.ssa.JavaScriptPropertyRead;
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import com.ibm.wala.cast.js.ssa.JavaScriptPropertyWrite;
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import com.ibm.wala.cast.js.ssa.JavaScriptTypeOfInstruction;
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import com.ibm.wala.cast.js.ssa.JavaScriptWithRegion;
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import com.ibm.wala.cast.js.ssa.PrototypeLookup;
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import com.ibm.wala.cast.js.ssa.SetPrototype;
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import com.ibm.wala.ipa.callgraph.CGNode;
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import com.ibm.wala.ipa.callgraph.propagation.InstanceKey;
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import com.ibm.wala.ipa.callgraph.propagation.PointerAnalysis;
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import com.ibm.wala.ipa.callgraph.propagation.PointerKey;
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import com.ibm.wala.ipa.modref.ExtendedHeapModel;
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import com.ibm.wala.util.collections.Iterator2Iterable;
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public class JavaScriptModRef<T extends InstanceKey> extends AstModRef<T> {
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protected static class JavaScriptRefVisitor<T extends InstanceKey> extends AstRefVisitor<T> implements JSInstructionVisitor {
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protected JavaScriptRefVisitor(CGNode n, Collection<PointerKey> result, PointerAnalysis<T> pa, ExtendedHeapModel h) {
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super(n, result, pa, (AstHeapModel)h);
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}
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@Override
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public void visitJavaScriptInvoke(JavaScriptInvoke instruction) {
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// do nothing
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}
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@Override
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public void visitTypeOf(JavaScriptTypeOfInstruction instruction) {
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// do nothing
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}
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@Override
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public void visitJavaScriptPropertyRead(JavaScriptPropertyRead instruction) {
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PointerKey obj = h.getPointerKeyForLocal(n, instruction.getObjectRef());
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PointerKey prop = h.getPointerKeyForLocal(n, instruction.getMemberRef());
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for(InstanceKey o : pa.getPointsToSet(obj)) {
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for(InstanceKey p : pa.getPointsToSet(prop)) {
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for(PointerKey x : Iterator2Iterable.make(h.getPointerKeysForReflectedFieldRead(o, p))) {
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assert x != null : instruction;
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result.add(x);
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}
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}
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}
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}
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@Override
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public void visitJavaScriptPropertyWrite(JavaScriptPropertyWrite instruction) {
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// do nothing
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}
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@Override
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public void visitJavaScriptInstanceOf(JavaScriptInstanceOf instruction) {
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// do nothing
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}
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@Override
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public void visitWithRegion(JavaScriptWithRegion instruction) {
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// do nothing
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}
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@Override
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public void visitCheckRef(JavaScriptCheckReference instruction) {
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// do nothing
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}
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@Override
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public void visitSetPrototype(SetPrototype instruction) {
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// do nothing
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}
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@Override
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public void visitPrototypeLookup(PrototypeLookup instruction) {
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// TODO Auto-generated method stub
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}
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}
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@Override
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protected RefVisitor<T, ? extends ExtendedHeapModel> makeRefVisitor(CGNode n, Collection<PointerKey> result, PointerAnalysis<T> pa, ExtendedHeapModel h) {
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return new JavaScriptRefVisitor<>(n, result, pa, h);
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}
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protected static class JavaScriptModVisitor<T extends InstanceKey> extends AstModVisitor<T> implements JSInstructionVisitor {
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protected JavaScriptModVisitor(CGNode n, Collection<PointerKey> result, ExtendedHeapModel h, PointerAnalysis<T> pa) {
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super(n, result, (AstHeapModel)h, pa);
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}
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@Override
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public void visitJavaScriptInvoke(JavaScriptInvoke instruction) {
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// do nothing
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}
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@Override
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public void visitTypeOf(JavaScriptTypeOfInstruction instruction) {
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// do nothing
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}
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@Override
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public void visitJavaScriptPropertyRead(JavaScriptPropertyRead instruction) {
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// do nothing
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}
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@Override
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public void visitJavaScriptPropertyWrite(JavaScriptPropertyWrite instruction) {
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PointerKey obj = h.getPointerKeyForLocal(n, instruction.getObjectRef());
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PointerKey prop = h.getPointerKeyForLocal(n, instruction.getMemberRef());
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for(T o : pa.getPointsToSet(obj)) {
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for(T p : pa.getPointsToSet(prop)) {
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for(PointerKey x : Iterator2Iterable.make(h.getPointerKeysForReflectedFieldWrite(o, p))) {
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assert x != null : instruction;
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result.add(x);
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}
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}
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}
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}
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@Override
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public void visitJavaScriptInstanceOf(JavaScriptInstanceOf instruction) {
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// do nothing
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}
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@Override
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public void visitWithRegion(JavaScriptWithRegion instruction) {
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// do nothing
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}
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@Override
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public void visitCheckRef(JavaScriptCheckReference instruction) {
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// do nothing
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}
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@Override
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public void visitSetPrototype(SetPrototype instruction) {
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// TODO Auto-generated method stub
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}
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@Override
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public void visitPrototypeLookup(PrototypeLookup instruction) {
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// do nothing
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}
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}
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@Override
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protected ModVisitor<T, ? extends ExtendedHeapModel> makeModVisitor(CGNode n, Collection<PointerKey> result, PointerAnalysis<T> pa, ExtendedHeapModel h, boolean ignoreAllocHeapDefs) {
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return new JavaScriptModVisitor<>(n, result, h, pa);
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}
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}
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