WALA/com.ibm.wala.cast.js/source/com/ibm/wala/cast/js/ipa/callgraph/JavaScriptScopeMappingInsta...

54 lines
2.0 KiB
Java

/******************************************************************************
* 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.ScopeMappingInstanceKeys;
import com.ibm.wala.cast.js.loader.JavaScriptLoader.JavaScriptMethodObject;
import com.ibm.wala.cast.js.types.JavaScriptTypes;
import com.ibm.wala.cast.loader.AstMethod.LexicalParent;
import com.ibm.wala.cast.types.AstMethodReference;
import com.ibm.wala.classLoader.IClass;
import com.ibm.wala.ipa.callgraph.propagation.InstanceKey;
import com.ibm.wala.ipa.callgraph.propagation.InstanceKeyFactory;
import com.ibm.wala.ipa.callgraph.propagation.PropagationCallGraphBuilder;
import com.ibm.wala.ipa.cha.IClassHierarchy;
public class JavaScriptScopeMappingInstanceKeys extends ScopeMappingInstanceKeys {
private final IClassHierarchy cha;
private final IClass codeBody;
public JavaScriptScopeMappingInstanceKeys(IClassHierarchy cha,
PropagationCallGraphBuilder builder,
InstanceKeyFactory basic)
{
super(builder, basic);
this.cha = cha;
this.codeBody = cha.lookupClass(JavaScriptTypes.CodeBody);
}
protected LexicalParent[] getParents(InstanceKey base) {
JavaScriptMethodObject function = (JavaScriptMethodObject)
base.getConcreteType().getMethod(AstMethodReference.fnSelector);
return function==null? new LexicalParent[0]: function.getParents();
}
protected boolean needsScopeMappingKey(InstanceKey base) {
return
cha.isSubclassOf(base.getConcreteType(), codeBody)
&&
getParents(base).length > 0;
}
}