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another bug fix 

git-svn-id: https://wala.svn.sourceforge.net/svnroot/wala/trunk@4464 f5eafffb-2e1d-0410-98e4-8ec43c5233c4
This commit is contained in:
msridhar1 2012-02-17 20:15:02 +00:00
parent 8982d35800
commit c9ee502acc
2 changed files with 58 additions and 1 deletions
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2
com.ibm.wala.cast.js/source/com/ibm/wala/cast/js/ipa/callgraph/JSZeroOrOneXCFABuilder.java
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@ -47,7 +47,7 @@ public class JSZeroOrOneXCFABuilder extends JSCFABuilder {
MethodTargetSelector targetSelector = new JavaScriptConstructTargetSelector(cha, options
.getMethodTargetSelector());
if (options.handleCallApply()) {
targetSelector = new JavaScriptFunctionDotCallTargetSelector(targetSelector);
targetSelector = new JavaScriptFunctionApplyTargetSelector(new JavaScriptFunctionDotCallTargetSelector(targetSelector));
}
if (options.useLoadFileTargetSelector()) {
targetSelector = new LoadFileTargetSelector(targetSelector, this);

57
com.ibm.wala.cast.js/source/com/ibm/wala/cast/js/ipa/callgraph/JavaScriptFunctionApplyTargetSelector.java Normal file
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@ -0,0 +1,57 @@
package com.ibm.wala.cast.js.ipa.callgraph;
import com.ibm.wala.cast.js.ipa.summaries.JavaScriptSummarizedFunction;
import com.ibm.wala.cast.js.ipa.summaries.JavaScriptSummary;
import com.ibm.wala.cast.js.loader.JavaScriptLoader;
import com.ibm.wala.cast.types.AstMethodReference;
import com.ibm.wala.classLoader.CallSiteReference;
import com.ibm.wala.classLoader.IClass;
import com.ibm.wala.classLoader.IMethod;
import com.ibm.wala.ipa.callgraph.CGNode;
import com.ibm.wala.ipa.callgraph.MethodTargetSelector;
import com.ibm.wala.types.Descriptor;
import com.ibm.wala.types.MethodReference;
import com.ibm.wala.util.strings.Atom;
/**
* We need to generate synthetic methods for Function.apply() in the target
* selector, so that the AstMethod for functionApply() in the prologue doesn't
* actually get used in the CGNodes used for calls to Function.apply(). The
* generated dummy methods should <em>never</em> actually be used except as a
* stub.
*/
public class JavaScriptFunctionApplyTargetSelector implements MethodTargetSelector {
private final MethodTargetSelector base;
public JavaScriptFunctionApplyTargetSelector(MethodTargetSelector base) {
this.base = base;
}
public static final String SYNTHETIC_APPLY_METHOD_PREFIX = "$$ apply_dummy";
private MethodReference genSyntheticMethodRef(IClass receiver) {
Atom atom = Atom.findOrCreateUnicodeAtom(SYNTHETIC_APPLY_METHOD_PREFIX);
Descriptor desc = Descriptor.findOrCreateUTF8(JavaScriptLoader.JS, "()LRoot;");
MethodReference ref = MethodReference.findOrCreate(receiver.getReference(), atom, desc);
return ref;
}
@Override
public IMethod getCalleeTarget(CGNode caller, CallSiteReference site, IClass receiver) {
IMethod method = receiver.getMethod(AstMethodReference.fnSelector);
if (method != null) {
String s = method.getReference().getDeclaringClass().getName().toString();
if (s.equals("Lprologue.js/functionApply")) {
// just create a dummy method
final MethodReference ref = genSyntheticMethodRef(receiver);
// number of args doesn't matter
JavaScriptSummary S = new JavaScriptSummary(ref, 1);
return new JavaScriptSummarizedFunction(ref, S, receiver);
}
}
return base.getCalleeTarget(caller, site, receiver);
}
}