164 lines
5.1 KiB
Java
164 lines
5.1 KiB
Java
package com.ibm.wala.cast.js.ipa.modref;
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import java.util.Collection;
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import java.util.Iterator;
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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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public class JavaScriptModRef extends AstModRef {
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protected static class JavaScriptRefVisitor extends AstRefVisitor implements JSInstructionVisitor {
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protected JavaScriptRefVisitor(CGNode n, Collection<PointerKey> result, PointerAnalysis<InstanceKey> 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(Iterator<PointerKey> keys = h.getPointerKeysForReflectedFieldRead(o, p); keys.hasNext(); ) {
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PointerKey x = keys.next();
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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 makeRefVisitor(CGNode n, Collection<PointerKey> result, PointerAnalysis<InstanceKey> 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 extends AstModVisitor implements JSInstructionVisitor {
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protected JavaScriptModVisitor(CGNode n, Collection<PointerKey> result, ExtendedHeapModel h, PointerAnalysis<InstanceKey> 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(InstanceKey o : pa.getPointsToSet(obj)) {
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for(InstanceKey p : pa.getPointsToSet(prop)) {
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for(Iterator<PointerKey> keys = h.getPointerKeysForReflectedFieldWrite(o, p); keys.hasNext(); ) {
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PointerKey x = keys.next();
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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 makeModVisitor(CGNode n, Collection<PointerKey> result, PointerAnalysis<InstanceKey> 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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