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

85 lines
3.4 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.ipa.callgraph.AnalysisOptions;
import com.ibm.wala.ipa.callgraph.AnalysisScope;
import com.ibm.wala.ipa.callgraph.ContextSelector;
import com.ibm.wala.ipa.callgraph.ReflectionSpecification;
import com.ibm.wala.ipa.callgraph.impl.DefaultContextSelector;
import com.ibm.wala.ipa.callgraph.impl.DelegatingContextSelector;
import com.ibm.wala.ipa.callgraph.propagation.SSAContextInterpreter;
import com.ibm.wala.ipa.callgraph.propagation.cfa.ZeroXInstanceKeys;
import com.ibm.wala.ipa.cha.IClassHierarchy;
/**
* @author sfink
*
* 0-1-CFA Call graph builder, optimized to not disambiguate instances of
* "uninteresting" types
*/
public class JSZeroXCFABuilder extends JSCFABuilder {
public JSZeroXCFABuilder(IClassHierarchy cha, AnalysisOptions options, ContextSelector appContextSelector,
SSAContextInterpreter appContextInterpreter, ReflectionSpecification reflect, int instancePolicy) {
super(cha, options);
SSAContextInterpreter contextInterpreter = makeDefaultContextInterpreters(appContextInterpreter, options, cha, reflect);
setContextInterpreter(contextInterpreter);
options.setSelector(new JavaScriptConstructTargetSelector(cha, options.getMethodTargetSelector()));
ContextSelector def = new DefaultContextSelector(cha, options.getMethodTargetSelector());
ContextSelector contextSelector = appContextSelector == null ? def : new DelegatingContextSelector(appContextSelector, def);
setContextSelector(contextSelector);
setInstanceKeys(new JavaScriptScopeMappingInstanceKeys(cha, this, new ZeroXInstanceKeys(options, cha, contextInterpreter,
instancePolicy)));
}
/**
* @param options
* options that govern call graph construction
* @param cha
* governing class hierarchy
* @param cl
* classloader that can find DOMO resources
* @param scope
* representation of the analysis scope
* @param xmlFiles
* set of Strings that are names of XML files holding bypass logic
* specifications.
* @param dmd
* deployment descriptor abstraction
* @return a 0-1-Opt-CFA Call Graph Builder.
*/
public static JSCFABuilder make(AnalysisOptions options, IClassHierarchy cha, ClassLoader cl, AnalysisScope scope,
String[] xmlFiles, byte instancePolicy) {
com.ibm.wala.ipa.callgraph.impl.Util.addDefaultSelectors(options, cha);
for (int i = 0; i < xmlFiles.length; i++) {
com.ibm.wala.ipa.callgraph.impl.Util.addBypassLogic(options, scope, cl, xmlFiles[i], cha);
}
return new JSZeroXCFABuilder(cha, options, null, null, options.getReflectionSpec(), instancePolicy);
}
/*
* (non-Javadoc)
*
* @see com.ibm.domo.ipa.callgraph.propagation.PropagationCallGraphBuilder#getDefaultDispatchBoundHeuristic()
*/
protected byte getDefaultDispatchBoundHeuristic() {
return AnalysisOptions.NO_DISPATCH_BOUND;
}
}