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AsmModuleClassProvider.java
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77 lines (69 loc) · 2.34 KB
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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
* <http://www.gnu.org/licenses/lgpl-2.1.html>.
* #L%
*/
import java.io.IOException;
import java.io.InputStream;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ModuleVisitor;
import org.objectweb.asm.Opcodes;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import soot.ClassProvider;
import soot.ClassSource;
import soot.FoundFile;
import soot.IFoundFile;
import soot.ModulePathSourceLocator;
/**
* Objectweb ASM class provider.
*
* @author Andreas Dann
*/
public class AsmModuleClassProvider implements ClassProvider {
private static final Logger logger = LoggerFactory.getLogger(AsmModuleClassProvider.class);
@Override
public ClassSource find(String cls) {
final int idx = cls.lastIndexOf(':') + 1;
String clsFile = cls.substring(0, idx) + cls.substring(idx).replace('.', '/') + ".class";
IFoundFile file = ModulePathSourceLocator.v().lookUpInModulePath(clsFile);
return file == null ? null : new AsmClassSource(cls, file);
}
public String getModuleName(FoundFile file) {
final String[] moduleName = { null };
ClassVisitor visitor = new ClassVisitor(Opcodes.ASM8) {
@Override
public ModuleVisitor visitModule(String name, int access, String version) {
moduleName[0] = name;
return null;
}
};
try (InputStream d = file.inputStream()) {
new ClassReader(d).accept(visitor, ClassReader.SKIP_FRAMES);
return moduleName[0];
} catch (IOException e) {
logger.debug(e.getMessage(), e);
} finally {
file.close();
}
return null;
}
}