Examples with ClassVisitor org.objectweb.asm.ClassVisitor used on opensource projects

Example 81 with ClassVisitor

use of org.objectweb.asm.ClassVisitor in project Hystrix by Netflix.

the class MethodProvider method unbride.

/**
 * Finds generic method for the given bridge method.
 *
 * @param bridgeMethod the bridge method
 * @param aClass       the type where the bridge method is declared
 * @return generic method
 * @throws IOException
 * @throws NoSuchMethodException
 * @throws ClassNotFoundException
 */
public Method unbride(final Method bridgeMethod, Class<?> aClass) throws IOException, NoSuchMethodException, ClassNotFoundException {
    if (bridgeMethod.isBridge() && bridgeMethod.isSynthetic()) {
        if (cache.containsKey(bridgeMethod)) {
            return cache.get(bridgeMethod);
        }
        ClassReader classReader = new ClassReader(aClass.getName());
        final MethodSignature methodSignature = new MethodSignature();
        classReader.accept(new ClassVisitor(ASM5) {

            @Override
            public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
                boolean bridge = (access & ACC_BRIDGE) != 0 && (access & ACC_SYNTHETIC) != 0;
                if (bridge && bridgeMethod.getName().equals(name) && getParameterCount(desc) == bridgeMethod.getParameterTypes().length) {
                    return new MethodFinder(methodSignature);
                }
                return super.visitMethod(access, name, desc, signature, exceptions);
            }
        }, 0);
        Method method = aClass.getDeclaredMethod(methodSignature.name, methodSignature.getParameterTypes());
        cache.put(bridgeMethod, method);
        return method;
    } else {
        return bridgeMethod;
    }
}

Example 82 with ClassVisitor

use of org.objectweb.asm.ClassVisitor in project jacoco by jacoco.

the class ProbeInserterTest method setup.

@Before
public void setup() {
    actual = new MethodRecorder();
    actualVisitor = actual.getVisitor();
    expected = new MethodRecorder();
    expectedVisitor = expected.getVisitor();
    arrayStrategy = new IProbeArrayStrategy() {

        public int storeInstance(MethodVisitor mv, boolean clinit, int variable) {
            mv.visitLdcInsn(clinit ? "clinit" : "init");
            return 5;
        }

        public void addMembers(ClassVisitor delegate, int probeCount) {
        }
    };
}

Example 83 with ClassVisitor

use of org.objectweb.asm.ClassVisitor in project jacoco by jacoco.

the class FramesTest method calculateFrames.

private byte[] calculateFrames(byte[] source) {
    source = BytecodeVersion.downgradeIfNeeded(BytecodeVersion.get(source), source);
    ClassReader rc = new ClassReader(source);
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
    // Adjust Version to 1.6 to enable frames:
    rc.accept(new ClassVisitor(InstrSupport.ASM_API_VERSION, cw) {

        @Override
        public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
            super.visit(Opcodes.V1_6, access, name, signature, superName, interfaces);
        }
    }, 0);
    return cw.toByteArray();
}

Example 84 with ClassVisitor

use of org.objectweb.asm.ClassVisitor in project J2ME-Loader by nikita36078.

the class AndroidProducer method instrument.

private static byte[] instrument(String name, final InputStream classInputStream, boolean isMidlet) throws IOException {
    ClassReader cr = new ClassReader(classInputStream);
    ClassWriter cw = new ClassWriter(0);
    ClassVisitor cv = new AndroidClassVisitor(cw, isMidlet, classesHierarchy, fieldTranslations, methodTranslations);
    cr.accept(cv, 0);
    return cw.toByteArray();
}

Example 85 with ClassVisitor

use of org.objectweb.asm.ClassVisitor in project openj9 by eclipse.

the class ASMTransformer method inject_call_to_timerMethod.

public static synchronized byte[] inject_call_to_timerMethod(Class classToTransform) {
    try {
        ClassReader reader = new ClassReader(classToTransform.getCanonicalName());
        ClassWriter cw = new ClassWriter(reader, ClassWriter.COMPUTE_FRAMES);
        ClassVisitor visitor = new MyClassVisitor(cw, classToTransform.getCanonicalName());
        reader.accept(visitor, ClassReader.EXPAND_FRAMES);
        return cw.toByteArray();
    } catch (IOException e) {
        return null;
    }
}