Example usage for org.objectweb.asm ClassReader EXPAND_FRAMES

List of usage examples for org.objectweb.asm ClassReader EXPAND_FRAMES

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Introduction

In this page you can find the example usage for org.objectweb.asm ClassReader EXPAND_FRAMES.

Prototype

int EXPAND_FRAMES

To view the source code for org.objectweb.asm ClassReader EXPAND_FRAMES.

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Document

A flag to expand the stack map frames.

Usage

From source file:appeng.core.api.ApiPart.java

License:Open Source License

public ClassNode getReader(String name) {
    ClassReader cr;/*from  ww  w.j a  v a2  s .c  o m*/
    String path = '/' + name.replace(".", "/") + ".class";
    InputStream is = this.getClass().getResourceAsStream(path);
    try {
        cr = new ClassReader(is);

        ClassNode cn = new ClassNode();
        cr.accept(cn, ClassReader.EXPAND_FRAMES);

        return cn;
    } catch (IOException e) {
        throw new IllegalStateException("Error loading " + name, e);
    }
}

From source file:asmlib.UninitializedCallChecker.java

License:Open Source License

public static void verify(ClassReader cr, PrintWriter pw) {
    // O AnalyzerAdapter
    // precisa que as frames estejam delimitadas no cdigo para funcionar correctamente.
    // Frames parecem ser obrigatrias a partir do Java 6, mas muitas classes no as tm
    // por isso fazemos mais um pass com um ClassWriter, para obtermos uma classe com
    // as frames calculadas.
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
    cr.accept(cw, 0);/*w ww  . j  a va  2s. c  o m*/
    cr = new ClassReader(cw.toByteArray());

    try {
        cr.accept(new GenericMethodVisitorAdapter(new EmptyClassVisitor(), UninitializedCallChecker.class,
                cr.getClassName(), pw), ClassReader.EXPAND_FRAMES);
    } catch (ArrayIndexOutOfBoundsException e) {
    }
}

From source file:br.ufpr.gres.core.classpath.Resources.java

License:Apache License

private List<ClassDetails> getClasses(final File file, String filter)
        throws IOException, ClassNotFoundException {
    final List<ClassDetails> classNames = new LinkedList<>();

    if (file.exists()) {
        for (final File f : file.listFiles()) {
            if (f.isDirectory()) {
                classNames.addAll(getClasses(f, filter));
            } else if (f.getName().endsWith(filter)) {
                final ClassContext context = new ClassContext();
                final ClassReader first = new ClassReader(FileUtils.readFileToByteArray(f));
                final NullVisitor nv = new NullVisitor();
                final RegisterInformationsClassVisitor mca = new RegisterInformationsClassVisitor(context, nv);

                first.accept(mca, ClassReader.EXPAND_FRAMES);

                classNames.add(new ClassDetails(context.getClassInfo(), f, this.root));
            }//w ww. j a v a 2s.c  o m
        }
    }

    return classNames;
}

From source file:br.ufpr.gres.core.MutationTest.java

License:Apache License

public Mutant getMutation(final MutationIdentifier id, byte[] classToMutate) {
    Collection<IMutationOperator> mutators = MUTATORS.stream().collect(Collectors.toList());
    Collection<IMutationOperator> mutatorsFiltered = mutators.stream()
            .filter(p -> id.getMutator().equals(p.getName())).collect(Collectors.toList());

    final ClassContext context = new ClassContext();
    context.setTargetMutation(id);/*  w  w w.  ja va  2 s  .  c  o m*/

    // Lembrar de usar isso aqui (ClassPathByteArraySource - pitest)
    // GregorMutater... carregar os bytes
    //        final Optional<byte[]> bytes = this.byteSource.getBytes(id.getClassName()
    //                .asJavaName());
    //final PremutationClassInfo classInfo = performPreScan(classToMutate);
    final ClassReader reader = new ClassReader(classToMutate);
    final ClassWriter w = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);

    final MutatingClassVisitor mca = new MutatingClassVisitor(mutatorsFiltered, context, w);
    reader.accept(mca, ClassReader.EXPAND_FRAMES);

    final List<MutationDetails> details = context.getCollectedMutations();

    return new Mutant(details.stream().filter(p -> p.getId().equals(id)).findFirst().get(), w.toByteArray());
}

From source file:br.ufpr.gres.core.MutationTest.java

License:Apache License

public Mutant getHigherOrderMutant(final ArrayList<MutationIdentifier> ids, byte[] classToMutate) {
    Collection<IMutationOperator> mutators = MUTATORS.stream().collect(Collectors.toList());
    //Collection<IMutationOperator> mutatorsFiltered = mutators.stream().filter(p ->.getMutator().equals(p.getName())).collect(Collectors.toList());

    final ClassContext context = new ClassContext();
    context.setTargetMutation(ids);/*from  w w  w . j av a 2 s.  co  m*/

    // Lembrar de usar isso aqui (ClassPathByteArraySource - pitest)
    // GregorMutater... carregar os bytes
    //        final Optional<byte[]> bytes = this.byteSource.getBytes(id.getClassName()
    //                .asJavaName());
    //final PremutationClassInfo classInfo = performPreScan(classToMutate);
    final ClassReader reader = new ClassReader(classToMutate);
    final ClassWriter w = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);

    final MutatingClassVisitor mca = new MutatingClassVisitor(mutators, context, w);
    reader.accept(mca, ClassReader.EXPAND_FRAMES);

    List<MutationDetails> details = new ArrayList<>();

    for (MutationDetails detail : context.getCollectedMutations()) {
        if (ids.stream().anyMatch(p -> p.equals(detail.getId()))) {
            details.add(detail);
        }
    }

    return new Mutant(details, w.toByteArray());
}

From source file:br.ufpr.gres.core.MutationTest.java

License:Apache License

@Test
public void mutation() throws Exception {
    String directory = Paths.get(System.getProperty("user.dir")) + File.separator + "examples" + File.separator
            + "bub";
    ClassDetails classes = new Resources(directory).getClasses().get(0);

    final byte[] classToMutate = classes.getBytes();

    try (DataOutputStream dout = new DataOutputStream(
            new FileOutputStream(new File(directory + File.separator + "mutants", "Original.class")))) {
        dout.write(classToMutate);/*from   w w w. j av a  2 s  . co  m*/
    } catch (IOException ex) {
        ex.printStackTrace();
    }

    final ClassContext context = new ClassContext();
    //context.setTargetMutation();

    final PremutationClassInfo classInfo = performPreScan(classToMutate);

    final ClassReader first = new ClassReader(classToMutate);
    final NullVisitor nv = new NullVisitor();
    Collection<IMutationOperator> mutators = MUTATORS.stream().collect(Collectors.toList());

    final MutatingClassVisitor mca = new MutatingClassVisitor(mutators, context, nv);

    first.accept(mca, ClassReader.EXPAND_FRAMES);

    if (!context.getTargetMutation().isEmpty()) {
        final List<MutationDetails> details = context.getMutationDetails(context.getTargetMutation().get(0));
    } else {
        ArrayList<MutationDetails> details = new ArrayList(context.getCollectedMutations());

        for (IMutationOperator operator : mutators) {
            int i = 0;
            for (MutationDetails detail : details.stream()
                    .filter(p -> p.getMutator().equals(operator.getName())).collect(Collectors.toList())) {
                Mutant mutant = getMutation(detail.getId(), classToMutate);
                i++;
                System.out.println(mutant.getDetails().toString());
                try (DataOutputStream dout = new DataOutputStream(
                        new FileOutputStream(new File(directory + File.separator + "mutants",
                                mutant.getDetails().get(0).getMutator() + "_" + i + ".class")))) {
                    dout.write(mutant.getBytes());
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
            }
        }

    }

    ArrayList<MutationIdentifier> details = new ArrayList(context.getCollectedMutations().subList(0, 5).stream()
            .map(m -> m.getId()).collect(Collectors.toList()));
    System.out.println("Creating a mutant with order " + details.size());

    Mutant mutant = getHigherOrderMutant(details, classToMutate);
    System.out.println("The new mutant");
    System.out.println(mutant.toString());

    try (DataOutputStream dout = new DataOutputStream(
            new FileOutputStream(new File(directory + File.separator + "mutants", "HOM.class")))) {
        dout.write(mutant.getBytes());
    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:br.ufpr.gres.core.Mutator.java

License:Apache License

public static List<MutationDetails> doMutation(Collection<IMutationOperator> mutators, byte[] classToMutate) {
    final ClassContext context = new ClassContext();
    final ClassReader first = new ClassReader(classToMutate);
    final NullVisitor nv = new NullVisitor();
    final MutatingClassVisitor mca = new MutatingClassVisitor(mutators, context, nv);

    first.accept(mca, ClassReader.EXPAND_FRAMES);

    return context.getCollectedMutations();
}

From source file:br.ufpr.gres.core.Mutator.java

License:Apache License

public static Mutant getMutation(Collection<IMutationOperator> mutators, ArrayList<MutationIdentifier> ids,
        byte[] classToMutate) {
    final ClassContext context = new ClassContext();
    context.setTargetMutation(ids);// w ww.j  a v a 2s  .c o m
    final ClassReader reader = new ClassReader(classToMutate);
    final ClassWriter w = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);

    final MutatingClassVisitor mca = new MutatingClassVisitor(mutators, context, w);
    reader.accept(mca, ClassReader.EXPAND_FRAMES);

    List<MutationDetails> details = new ArrayList<>();

    for (MutationDetails detail : context.getCollectedMutations()) {
        if (ids.stream().anyMatch(p -> p.equals(detail.getId()))) {
            details.add(detail);
        }
    }

    return new Mutant(details, w.toByteArray());
}

From source file:br.usp.each.saeg.badua.cli.Report.java

License:Open Source License

public void run() throws IOException, ClassNotFoundException {

    data = read(inputFile);//from  w w w  .j  a  v  a 2  s.  co  m

    final List<File> files = Files.listRecursive(classes, new FilenameFilter() {

        @Override
        public boolean accept(final File dir, final String name) {
            return new File(dir, name).isFile();
        }

    });

    for (final File file : files) {
        final InputStream input = new FileInputStream(file);
        final ContentTypeDetector detector = new ContentTypeDetector(input);
        try {
            if (detector.getType() == ContentTypeDetector.CLASSFILE) {
                final ClassReader cr = new ClassReader(detector.getInputStream());
                final ClassNode cn = new ClassNode(Opcodes.ASM5);
                cr.accept(cn, ClassReader.EXPAND_FRAMES);
                classId = CRC64.checksum(cr.b);
                analyze(cn);
            }
        } finally {
            input.close();
        }
    }
}

From source file:br.usp.each.saeg.badua.core.instr.Instrumenter.java

License:Open Source License

public byte[] instrument(final ClassReader reader) {
    final long classId = CRC64.checksum(reader.b);
    final ClassWriter writer = new ClassWriter(reader, DEFAULT);
    final ClassVisitor ci = new ClassInstrumenter(classId, writer);
    reader.accept(ci, ClassReader.EXPAND_FRAMES);
    return writer.toByteArray();
}