174 lines
5.6 KiB
Java
174 lines
5.6 KiB
Java
/******************************************************************************
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* Copyright (c) 2002 - 2006 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*****************************************************************************/
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package com.ibm.wala.cast.java.client;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Set;
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import com.ibm.wala.cast.ir.ssa.AstIRFactory;
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import com.ibm.wala.cast.java.client.impl.ZeroCFABuilderFactory;
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import com.ibm.wala.cast.java.ipa.callgraph.JavaSourceAnalysisScope;
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import com.ibm.wala.classLoader.ClassLoaderFactory;
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import com.ibm.wala.classLoader.Module;
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import com.ibm.wala.client.AbstractAnalysisEngine;
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import com.ibm.wala.ipa.callgraph.AnalysisCacheImpl;
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import com.ibm.wala.ipa.callgraph.AnalysisOptions;
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import com.ibm.wala.ipa.callgraph.AnalysisScope;
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import com.ibm.wala.ipa.callgraph.CallGraphBuilder;
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import com.ibm.wala.ipa.callgraph.Entrypoint;
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import com.ibm.wala.ipa.callgraph.IAnalysisCacheView;
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import com.ibm.wala.ipa.callgraph.impl.Util;
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import com.ibm.wala.ipa.callgraph.propagation.InstanceKey;
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import com.ibm.wala.ipa.cha.ClassHierarchyException;
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import com.ibm.wala.ipa.cha.ClassHierarchyFactory;
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import com.ibm.wala.ipa.cha.IClassHierarchy;
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import com.ibm.wala.ssa.SSAOptions;
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import com.ibm.wala.ssa.SymbolTable;
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import com.ibm.wala.types.ClassLoaderReference;
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import com.ibm.wala.util.collections.HashSetFactory;
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import com.ibm.wala.util.config.FileOfClasses;
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import com.ibm.wala.util.config.SetOfClasses;
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import com.ibm.wala.util.io.FileProvider;
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/**
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*/
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public abstract class JavaSourceAnalysisEngine<I extends InstanceKey> extends AbstractAnalysisEngine<I, CallGraphBuilder<I>, Void> {
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/**
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* Modules which are user-space code
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*/
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private final Set<Module> userEntries = HashSetFactory.make();
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/**
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* Modules which are source code
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*/
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private final Set<Module> sourceEntries = HashSetFactory.make();
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/**
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* Modules which are system or library code TODO: what about extension loader?
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*/
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private final Set<Module> systemEntries = HashSetFactory.make();
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public JavaSourceAnalysisEngine() {
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super();
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}
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/**
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* Adds the given source module to the source loader's module list. Clients
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* should/may call this method if they don't supply an IJavaProject to the
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* constructor.
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*/
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public void addSourceModule(Module M) {
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sourceEntries.add(M);
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}
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/**
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* Adds the given compiled module to the application loader's module list.
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* Clients should/may call this method if they don't supply an IJavaProject to
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* the constructor.
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*/
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public void addCompiledModule(Module M) {
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userEntries.add(M);
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}
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/**
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* Adds the given module to the primordial loader's module list. Clients
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* should/may call this method if they don't supply an IJavaProject to the
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* constructor.
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*/
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public void addSystemModule(Module M) {
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systemEntries.add(M);
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}
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@Override
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protected void addApplicationModulesToScope() {
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ClassLoaderReference app = scope.getApplicationLoader();
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for (Module M : userEntries) {
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scope.addToScope(app, M);
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}
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ClassLoaderReference src = ((JavaSourceAnalysisScope) scope).getSourceLoader();
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for (Module M : sourceEntries) {
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scope.addToScope(src, M);
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}
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}
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@Override
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public void buildAnalysisScope() throws IOException {
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scope = makeSourceAnalysisScope();
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if (getExclusionsFile() != null) {
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try (final InputStream is = new File(getExclusionsFile()).exists()? new FileInputStream(getExclusionsFile()): FileProvider.class.getClassLoader().getResourceAsStream(getExclusionsFile())) {
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scope.setExclusions(new FileOfClasses(is));
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}
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}
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for (Module M : this.systemEntries) {
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scope.addToScope(scope.getPrimordialLoader(), M);
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}
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// add user stuff
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addApplicationModulesToScope();
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}
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protected AnalysisScope makeSourceAnalysisScope() {
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return new JavaSourceAnalysisScope();
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}
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protected abstract ClassLoaderFactory getClassLoaderFactory(SetOfClasses exclusions);
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@Override
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public IClassHierarchy buildClassHierarchy() {
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IClassHierarchy cha = null;
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ClassLoaderFactory factory = getClassLoaderFactory(scope.getExclusions());
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try {
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cha = ClassHierarchyFactory.make(getScope(), factory);
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} catch (ClassHierarchyException e) {
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System.err.println("Class Hierarchy construction failed");
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System.err.println(e.toString());
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e.printStackTrace();
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}
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return cha;
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}
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@Override
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protected Iterable<Entrypoint> makeDefaultEntrypoints(AnalysisScope scope, IClassHierarchy cha) {
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return Util.makeMainEntrypoints(JavaSourceAnalysisScope.SOURCE, cha);
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}
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@Override
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public IAnalysisCacheView makeDefaultCache() {
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return new AnalysisCacheImpl(AstIRFactory.makeDefaultFactory());
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}
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@Override
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public AnalysisOptions getDefaultOptions(Iterable<Entrypoint> entrypoints) {
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AnalysisOptions options = new AnalysisOptions(getScope(), entrypoints);
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SSAOptions ssaOptions = new SSAOptions();
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ssaOptions.setDefaultValues(SymbolTable::getDefaultValue);
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options.setSSAOptions(ssaOptions);
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return options;
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}
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@Override
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protected CallGraphBuilder<? super I> getCallGraphBuilder(IClassHierarchy cha, AnalysisOptions options, IAnalysisCacheView cache) {
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return new ZeroCFABuilderFactory().make(options, cache, cha, scope);
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}
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}
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