Example usage for org.objectweb.asm ClassReader accept

Introduction

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

Prototype

public void accept(final ClassVisitor classVisitor, final Attribute[] attributePrototypes,
        final int parsingOptions) 

Source Link

Document

Makes the given visitor visit the JVMS ClassFile structure passed to the constructor of this ClassReader .

Usage

From source file:com.geeksaga.light.profiler.util.ASMUtil.java

License:Apache License

public static ClassNodeWrapper parse(byte[] classfileBuffer, int flags) {
    ClassNodeWrapper classNodeWrapper = new ClassNodeWrapper();

    ClassReader reader = new ClassReaderWrapper(classfileBuffer);
    reader.accept(useJSRInlinerAdapter(classNodeWrapper), new Attribute[0], flags);

    return classNodeWrapper;
}

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From source file:com.geeksaga.light.profiler.util.ASMUtil.java

License:Apache License

public static ClassNodeWrapper parse(Object obj) {
    ClassNodeWrapper classNodeWrapper = new ClassNodeWrapper();

    ClassReader reader = new ClassReaderWrapper(obj.getClass().getName());
    reader.accept(useJSRInlinerAdapter(classNodeWrapper), new Attribute[0], 0);

    return classNodeWrapper;
}

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From source file:com.geeksaga.light.profiler.util.ASMUtil.java

License:Apache License

public static ClassNodeWrapper parse(Class clazz) {
    ClassNodeWrapper classNodeWrapper = new ClassNodeWrapper();

    ClassReader reader = new ClassReaderWrapper(clazz);
    reader.accept(useJSRInlinerAdapter(classNodeWrapper), new Attribute[0], 0);

    return classNodeWrapper;
}

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From source file:com.geeksaga.light.profiler.util.ASMUtil.java

License:Apache License

private static ClassNodeWrapper getClassWrapperUsingClassName(String className) {
    if (ClassReaderWrapper.isValid(className)) {
        ClassNodeWrapper classNode = new ClassNodeWrapper();
        ClassReader cr = new ClassReaderWrapper(className);
        cr.accept(classNode, new Attribute[0], 0);

        return classNode;
    }/*  w  w  w. j a va2s.c  o  m*/

    return null;
}

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From source file:com.google.devtools.cdbg.debuglets.java.SourceFileMapper.java

License:Open Source License

private void loadClass(InputStream resource) throws IOException {
    ClassReader classReader;
    classReader = new ClassReader(resource);

    // We don't need to parse any attributes while loading the class.
    Attribute[] attributes = new Attribute[0];

    classReader.accept(new MapperClassVisitor(), attributes, ClassReader.SKIP_FRAMES);
}

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From source file:com.j2biz.pencil.ClassManager.java

License:Open Source License

private ASMClassInfoNode loadClassFromResource(final File fileSource) throws IOException {
    LOG.entry("loadClassFromResource(final File fileSource)");

    final FileInputStream in = new FileInputStream(fileSource);
    final ClassAnalyzerVisitor visitor = new ClassAnalyzerVisitor(this, fileSource);

    final ClassReader reader = new ClassReader(in);
    try {/*from  w ww .  jav a2 s. com*/
        reader.accept(visitor, Attributes.getDefaultAttributes(), false);
    } catch (Throwable x) {
        LOG.error("class is not parseable by ASM.");
        LOG.error("name of the class-file: " + fileSource);
        LOG.errorException(x);

        LOG.exit("loadClassFromResource(final File fileSource)");
        throw new ClassParseException("can't load class: " + fileSource, x);
    }

    LOG.exit("loadClassFromResource(final File fileSource)");
    return visitor.getClassInfo();
}

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From source file:com.retroduction.carma.transformer.asm.AbstractASMTransition.java

License:Open Source License

public List<Mutant> applyTransitions(byte[] byteCode) {

    ClassNode classNode = new ClassNode();

    ClassReader reader = new ClassReader(byteCode);

    reader.accept(classNode, new Attribute[] { new CharacterRangeTable() }, 0);

    List<Mutant> result = new ArrayList<Mutant>();

    int methodIndex = 0;

    for (MethodNode methodNode : (List<MethodNode>) classNode.methods) {

        Iterator<AbstractInsnNode> instructionIterator = methodNode.instructions.iterator();

        CharacterRangeTable crt = null;/*w  ww  .j  a v a  2 s.  c  o  m*/

        if (methodNode.attrs != null) {
            for (Attribute attr : (List<Attribute>) methodNode.attrs) {
                if (attr instanceof CharacterRangeTable) {
                    crt = (CharacterRangeTable) attr;
                }
            }
        }

        CRTEntry crtEntry = new CRTEntry();

        while (instructionIterator.hasNext()) {

            AbstractInsnNode node = instructionIterator.next();

            if (node instanceof LineNumberNode) {
                if (crt == null) {
                    crtEntry.setStartPos(((LineNumberNode) node).line << 10);
                    crtEntry.setEndPos(((LineNumberNode) node).line << 10);
                }
                continue;
            }

            if ((node instanceof LabelNode)) {

                if (crt == null)
                    continue;

                if (crt.getLabelOffsets().containsKey(((LabelNode) node).getLabel())) {
                    crtEntry = crt.getLabelOffsets().get(((LabelNode) node).getLabel());
                }
                continue;
            }

            this.checkNode(classNode, methodNode, result, crtEntry, node);

        }
        methodIndex++;

    }

    return result;
}

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