Example usage for org.objectweb.asm.tree InsnList InsnList

List of usage examples for org.objectweb.asm.tree InsnList InsnList

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In this page you can find the example usage for org.objectweb.asm.tree InsnList InsnList.

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InsnList

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From source file:com.navercorp.pinpoint.profiler.instrument.ASMMethodNodeAdapter.java

License:Apache License

private void initInterceptorLocalVariables(final int interceptorId,
        final InterceptorDefinition interceptorDefinition, final int apiId) {
    final InsnList instructions = new InsnList();
    if (this.methodVariables.initInterceptorLocalVariables(instructions, interceptorId, interceptorDefinition,
            apiId)) {//from   ww  w. j  ava  2 s . co m
        // if first time.
        this.methodNode.instructions.insertBefore(this.methodVariables.getEnterInsnNode(), instructions);
    }
}

From source file:com.navercorp.pinpoint.profiler.instrument.ASMMethodNodeAdapter.java

License:Apache License

public void addBeforeInterceptor(final int interceptorId, final InterceptorDefinition interceptorDefinition,
        final int apiId) {
    initInterceptorLocalVariables(interceptorId, interceptorDefinition, apiId);

    final InsnList instructions = new InsnList();
    this.methodVariables.loadInterceptorLocalVariables(instructions, interceptorDefinition, false);

    final String description = Type.getMethodDescriptor(interceptorDefinition.getBeforeMethod());
    instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE,
            Type.getInternalName(interceptorDefinition.getInterceptorBaseClass()), "before", description,
            true));//from   w  w  w  . j a v  a2  s  .  c o m
    this.methodNode.instructions.insertBefore(this.methodVariables.getEnterInsnNode(), instructions);
}

From source file:com.navercorp.pinpoint.profiler.instrument.ASMMethodNodeAdapter.java

License:Apache License

public void addAfterInterceptor(final int interceptorId, final InterceptorDefinition interceptorDefinition,
        final int apiId) {
    initInterceptorLocalVariables(interceptorId, interceptorDefinition, apiId);

    // add try catch block.
    final ASMTryCatch tryCatch = new ASMTryCatch(this.methodNode);
    this.methodNode.instructions.insertBefore(this.methodVariables.getEnterInsnNode(),
            tryCatch.getStartLabelNode());
    this.methodNode.instructions.insert(this.methodVariables.getExitInsnNode(), tryCatch.getEndLabelNode());

    // find return.
    AbstractInsnNode insnNode = this.methodNode.instructions.getFirst();
    while (insnNode != null) {
        final int opcode = insnNode.getOpcode();
        if (this.methodVariables.isReturnCode(opcode)) {
            final InsnList instructions = new InsnList();
            this.methodVariables.storeResultVar(instructions, opcode);
            invokeAfterInterceptor(instructions, interceptorDefinition, false);
            this.methodNode.instructions.insertBefore(insnNode, instructions);
        }/*from ww w.ja  va2 s. c  om*/
        insnNode = insnNode.getNext();
    }

    // try catch handler.
    InsnList instructions = new InsnList();
    this.methodVariables.storeThrowableVar(instructions);
    invokeAfterInterceptor(instructions, interceptorDefinition, true);
    // throw exception.
    this.methodVariables.loadInterceptorThrowVar(instructions);
    this.methodNode.instructions.insert(tryCatch.getEndLabelNode(), instructions);
    tryCatch.sort();
}

From source file:com.navercorp.pinpoint.profiler.instrument.ASMMethodVariablesTest.java

License:Apache License

@Test
public void initInterceptorLocalVariables() throws Exception {
    MethodNode methodNode = ASMClassNodeLoader
            .get("com.navercorp.pinpoint.profiler.instrument.mock.ConstructorChildClass", "<init>");
    ASMMethodVariables variables = new ASMMethodVariables(
            "com.navercorp.pinpoint.profiler.instrument.mock.ConstructorChildClass", methodNode);

    assertNull(variables.getEnterInsnNode());
    assertNull(variables.getEnterInsnNode());

    InterceptorRegistryBinder interceptorRegistryBinder = new DefaultInterceptorRegistryBinder();
    int interceptorId = interceptorRegistryBinder.getInterceptorRegistryAdaptor()
            .addInterceptor(new ArgsArrayInterceptor());
    final InterceptorDefinition interceptorDefinition = new InterceptorDefinitionFactory()
            .createInterceptorDefinition(ArgsArrayInterceptor.class);

    InsnList instructions = new InsnList();
    boolean first = variables.initInterceptorLocalVariables(instructions, interceptorId, interceptorDefinition,
            -1);/*from w w w  . j  a  va  2s. c om*/
    assertEquals(true, first);
    assertNotNull(variables.getEnterInsnNode());
    assertNotNull(variables.getEnterInsnNode());
}

From source file:com.offbynull.coroutines.instrumenter.asm.InstructionUtils.java

License:Open Source License

/**
 * Returns an empty instruction list.
 * @return empty instruction list
 */
public static InsnList empty() {
    return new InsnList();
}

From source file:com.offbynull.coroutines.instrumenter.asm.InstructionUtils.java

License:Open Source License

/**
 * Clones an invokevirtual/invokespecial/invokeinterface/invokedynamic node and returns it as an instruction list.
 * @param insnNode instruction to clone// w  w w .  j  a v  a2 s  .co m
 * @throws NullPointerException if any argument is {@code null}
 * @throws IllegalArgumentException if node isn't of invoke type
 * @return instruction list with cloned instruction
 */
public static InsnList cloneInvokeNode(AbstractInsnNode insnNode) {
    Validate.notNull(insnNode);
    Validate.isTrue(insnNode instanceof MethodInsnNode || insnNode instanceof InvokeDynamicInsnNode);

    InsnList ret = new InsnList();
    ret.add(insnNode.clone(new HashMap<>()));

    return ret;
}

From source file:com.offbynull.coroutines.instrumenter.asm.InstructionUtils.java

License:Open Source License

/**
 * Clones a monitorenter/monitorexit node and returns it as an instruction list.
 * @param insnNode instruction to clone/*w  w  w.j a  v  a2 s. c  om*/
 * @throws NullPointerException if any argument is {@code null}
 * @throws IllegalArgumentException if node isn't of invoke type
 * @return instruction list with cloned instruction
 */
public static InsnList cloneMonitorNode(AbstractInsnNode insnNode) {
    Validate.notNull(insnNode);
    Validate.isTrue(insnNode instanceof InsnNode);
    Validate.isTrue(
            insnNode.getOpcode() == Opcodes.MONITORENTER || insnNode.getOpcode() == Opcodes.MONITOREXIT);

    InsnList ret = new InsnList();
    ret.add(insnNode.clone(new HashMap<>()));

    return ret;
}

From source file:com.offbynull.coroutines.instrumenter.asm.InstructionUtils.java

License:Open Source License

/**
 * Clones an instruction list. All labels are remapped unless otherwise specified in {@code globalLabels}.
 * @param insnList instruction list to clone
 * @param globalLabels set of labels that should not be remapped
 * @throws NullPointerException if any argument is {@code null}
 * @return instruction list with cloned instructions
 *//*from w  w w  .ja v  a2 s . c o  m*/
public static InsnList cloneInsnList(InsnList insnList, Set<LabelNode> globalLabels) {
    Validate.notNull(insnList);

    // remap all labelnodes
    Map<LabelNode, LabelNode> labelNodeMapping = new HashMap<>();
    ListIterator<AbstractInsnNode> it = insnList.iterator();
    while (it.hasNext()) {
        AbstractInsnNode abstractInsnNode = it.next();
        if (abstractInsnNode instanceof LabelNode) {
            LabelNode existingLabelNode = (LabelNode) abstractInsnNode;
            labelNodeMapping.put(existingLabelNode, new LabelNode());
        }
    }

    // override remapping such that global labels stay the same
    for (LabelNode globalLabel : globalLabels) {
        labelNodeMapping.put(globalLabel, globalLabel);
    }

    // clone
    InsnList ret = new InsnList();
    it = insnList.iterator();
    while (it.hasNext()) {
        AbstractInsnNode abstractInsnNode = it.next();
        ret.add(abstractInsnNode.clone(labelNodeMapping));
    }

    return ret;
}

From source file:com.offbynull.coroutines.instrumenter.asm.InstructionUtils.java

License:Open Source License

/**
 * Combines multiple instruction lists in to a single instruction list.
 * @param insnLists instruction lists to merge
 * @throws NullPointerException if any argument is {@code null} or contains {@code null}
 * @return merged instructions//from w ww  . j av  a  2  s . c  o m
 */
public static InsnList merge(InsnList... insnLists) {
    Validate.notNull(insnLists);
    Validate.noNullElements(insnLists);

    InsnList ret = new InsnList();
    for (InsnList insnList : insnLists) {
        ret.add(insnList);
    }

    return ret;
}

From source file:com.offbynull.coroutines.instrumenter.asm.InstructionUtils.java

License:Open Source License

/**
 * Generates instructions for an unconditional jump to a label.
 * @param labelNode label to jump to// ww  w  . j av a 2s.  c o m
 * @throws NullPointerException if any argument is {@code null}
 * @return instructions for an unconditional jump to {@code labelNode}
 */
public static InsnList jumpTo(LabelNode labelNode) {
    Validate.notNull(labelNode);

    InsnList ret = new InsnList();
    ret.add(new JumpInsnNode(Opcodes.GOTO, labelNode));

    return ret;
}