WALA/com.ibm.wala.cast.js/source/com/ibm/wala/cast/js/ipa/callgraph/JSCallGraph.java

72 lines
2.4 KiB
Java
Executable File

/******************************************************************************
* Copyright (c) 2002 - 2006 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*****************************************************************************/
package com.ibm.wala.cast.js.ipa.callgraph;
import com.ibm.wala.cast.ipa.callgraph.*;
import com.ibm.wala.cast.js.cfg.*;
import com.ibm.wala.cast.js.ssa.*;
import com.ibm.wala.cast.js.types.*;
import com.ibm.wala.cfg.*;
import com.ibm.wala.classLoader.*;
import com.ibm.wala.ipa.callgraph.*;
import com.ibm.wala.ipa.callgraph.impl.*;
import com.ibm.wala.ipa.cha.*;
import com.ibm.wala.ssa.*;
import com.ibm.wala.types.*;
import com.ibm.wala.util.warnings.WarningSet;
public class JSCallGraph extends AstCallGraph {
public JSCallGraph(ClassHierarchy cha, AnalysisOptions options, WarningSet warnings) {
super(cha, options, warnings);
}
public class JSFakeRoot extends ScriptFakeRoot {
public JSFakeRoot(ClassHierarchy cha, AnalysisOptions options) {
super(cha, options);
}
public InducedCFG makeControlFlowGraph() {
return new JSInducedCFG(getStatements(new WarningSet()), this, Everywhere.EVERYWHERE);
}
public SSANewInstruction addAllocation(TypeReference T, WarningSet warnings) {
if (cha.isSubclassOf(cha.lookupClass(T), cha.lookupClass(JavaScriptTypes.Root))) {
int instance = nextLocal++;
NewSiteReference ref = NewSiteReference.make(statements.size(), T);
SSANewInstruction result = new JavaScriptNewInstruction(instance, ref);
statements.add(result);
return result;
} else {
return super.addAllocation(T, warnings);
}
}
public SSAAbstractInvokeInstruction addDirectCall(int function,
int[] params,
CallSiteReference site)
{
CallSiteReference newSite = CallSiteReference.make(statements.size(), site.getDeclaredTarget(), site.getInvocationCode());
JavaScriptInvoke s =
new JavaScriptInvoke(function, nextLocal++, params, nextLocal++, newSite);
statements.add(s);
return s;
}
}
protected CGNode makeFakeRootNode() {
return findOrCreateNode(new JSFakeRoot(cha, options), Everywhere.EVERYWHERE);
}
}