soot.asm.AsmClassSource Maven / Gradle / Ivy
package soot.asm;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 1997 - 2014 Raja Vallee-Rai and others
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
import java.io.IOException;
import java.io.InputStream;
import org.objectweb.asm.ClassReader;
import soot.ClassSource;
import soot.FoundFile;
import soot.SootClass;
import soot.javaToJimple.IInitialResolver.Dependencies;
/**
* ASM class source implementation.
*
* @author Aaloan Miftah
*/
public class AsmClassSource extends ClassSource {
protected FoundFile foundFile;
/**
* Constructs a new ASM class source.
*
* @param cls
* fully qualified name of the class.
* @param data
* stream containing data for class.
*/
protected AsmClassSource(String cls, FoundFile foundFile) {
super(cls);
if (foundFile == null) {
throw new IllegalStateException("Error: The FoundFile must not be null.");
}
this.foundFile = foundFile;
}
@Override
public Dependencies resolve(SootClass sc) {
InputStream d = null;
try {
d = foundFile.inputStream();
ClassReader clsr = new ClassReader(d);
SootClassBuilder scb = new SootClassBuilder(sc);
clsr.accept(scb, ClassReader.SKIP_FRAMES);
Dependencies deps = new Dependencies();
deps.typesToSignature.addAll(scb.deps);
return deps;
} catch (IOException e) {
throw new RuntimeException("Error: Failed to create class reader from class source.", e);
} finally {
try {
if (d != null) {
d.close();
d = null;
}
} catch (IOException e) {
throw new RuntimeException("Error: Failed to close source input stream.", e);
} finally {
close();
}
}
}
@Override
public void close() {
if (foundFile != null) {
foundFile.close();
foundFile = null;
}
}
}