Example usage for org.objectweb.asm Opcodes INVOKESPECIAL

List of usage examples for org.objectweb.asm Opcodes INVOKESPECIAL

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Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes INVOKESPECIAL.

Prototype

int INVOKESPECIAL

To view the source code for org.objectweb.asm Opcodes INVOKESPECIAL.

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Usage

From source file:com.mebigfatguy.junitflood.jvm.OperandStack.java

License:Apache License

public void performMethodInsn(int opcode, String owner, String name, String desc) {
    switch (opcode) {
    case Opcodes.INVOKEVIRTUAL:
    case Opcodes.INVOKESPECIAL:
    case Opcodes.INVOKESTATIC:
    case Opcodes.INVOKEINTERFACE:
        String[] parmSigs = SignatureUtils.splitMethodParameterSignatures(desc);
        int numParms = parmSigs.length;
        while ((numParms--) > 0) {
            pop();/*from w  w  w .j av a2  s.c  o m*/
        }
        if (opcode != Opcodes.INVOKESTATIC) {
            pop();
        }

        String returnSig = SignatureUtils.getReturnSignature(desc);
        if (!"V".equals(returnSig)) {
            Operand op = new Operand();
            op.setSignature(returnSig);
            push(op);
        }
        break;

    case Opcodes.INVOKEDYNAMIC:
        //no idea
        break;
    }
}

From source file:com.mogujie.instantrun.IncrementalChangeVisitor.java

License:Apache License

/**
 * Turns this class into an override class that can be loaded by our custom class loader:
 * <ul>//ww w  . j  a v a 2 s  .  c  o m
 * <li>Make the class name be OriginalName$override</li>
 * <li>Ensure the class derives from java.lang.Object, no other inheritance</li>
 * <li>Ensure the class has a public parameterless constructor that is a noop.</li>
 * </ul>
 */
@Override
public void visit(int version, int access, String name, String signature, String superName,
        String[] interfaces) {
    super.visit(version, Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER, name + OVERRIDE_SUFFIX, signature,
            "java/lang/Object", new String[] { CHANGE_TYPE.getInternalName() });

    visitedClassName = name;
    visitedSuperName = superName;
    instanceToStaticDescPrefix = "(L" + visitedClassName + ";";

    // Create empty constructor
    MethodVisitor mv = super.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
    mv.visitCode();
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
    mv.visitInsn(Opcodes.RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();

    //        super.visitField(Opcodes.ACC_PUBLIC | Opcodes.ACC_SYNTHETIC | Opcodes.ACC_STATIC,
    //                "$obsolete", "Z", null, null);
}

From source file:com.mogujie.instantrun.IncrementalChangeVisitor.java

License:Apache License

private void insnMachine(AbstractInsnNode node, List<AbstractInsnNode> removeList) {
    if (node.getOpcode() == Opcodes.NEW) {
        if (status == INIT) {
            status = FIND_NEW;/*from  w w w.  j a v a  2s.co  m*/
            removeList.add(node);
        } else {
            throw new RuntimeException("find new in status " + status);
        }
    }

    if (node.getOpcode() == Opcodes.DUP) {
        if (status == FIND_NEW) {
            status = INIT;
            removeList.add(node);
        }
    }

    if (node.getOpcode() == Opcodes.INVOKESPECIAL && node instanceof MethodInsnNode) {
        if (status == INIT) {
            MethodInsnNode methodInsnNode = (MethodInsnNode) node;
            if ("<init>".equals(methodInsnNode.name)) {
                if (getMethodAccessRight(methodInsnNode.owner, methodInsnNode.name,
                        methodInsnNode.desc) == AccessRight.PUBLIC) {
                    int removeSize = removeList.size();
                    removeList.remove(removeSize - 1);
                    removeList.remove(removeSize - 2);
                }
            }

        }
    }

}

From source file:com.mogujie.instantrun.IncrementalTool.java

License:Apache License

public static byte[] getPatchFileContents(ImmutableList<String> patchFileContents,
        ImmutableList<Integer> patchIndexContents) {
    if (patchFileContents.size() != patchIndexContents.size()) {
        throw new GradleException("patchFileContents's size is " + patchFileContents.size()
                + ", but patchIndexContents's size is " + patchIndexContents.size()
                + ", please check the changed classes.");
    }//ww  w .j  a va 2  s.co m
    ClassWriter cw = new ClassWriter(0);
    MethodVisitor mv;

    cw.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, IncrementalVisitor.APP_PATCHES_LOADER_IMPL,
            null, IncrementalVisitor.ABSTRACT_PATCHES_LOADER_IMPL, null);

    {
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, IncrementalVisitor.ABSTRACT_PATCHES_LOADER_IMPL, "<init>",
                "()V", false);
        mv.visitInsn(Opcodes.RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "getPatchedClasses", "()[Ljava/lang/String;", null, null);
        mv.visitCode();

        mv.visitIntInsn(Opcodes.SIPUSH, patchFileContents.size());
        mv.visitTypeInsn(Opcodes.ANEWARRAY, "java/lang/String");
        for (int index = 0; index < patchFileContents.size(); index++) {
            mv.visitInsn(Opcodes.DUP);
            mv.visitIntInsn(Opcodes.SIPUSH, index);
            mv.visitLdcInsn(patchFileContents.get(index));
            mv.visitInsn(Opcodes.AASTORE);
        }
        mv.visitInsn(Opcodes.ARETURN);
        mv.visitMaxs(4, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "getPatchedClassIndexes", "()[I", null, null);
        mv.visitCode();

        mv.visitIntInsn(Opcodes.SIPUSH, patchIndexContents.size());
        mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_INT);
        for (int index = 0; index < patchIndexContents.size(); index++) {
            mv.visitInsn(Opcodes.DUP);
            mv.visitIntInsn(Opcodes.SIPUSH, index);
            mv.visitLdcInsn(patchIndexContents.get(index));
            mv.visitInsn(Opcodes.IASTORE);
        }
        mv.visitInsn(Opcodes.ARETURN);
        mv.visitMaxs(4, 1);
        mv.visitEnd();
    }
    cw.visitEnd();

    return cw.toByteArray();

}

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

License:Apache License

public void addDelegator(final String superClassInternalName) {
    if (superClassInternalName == null) {
        throw new IllegalArgumentException("super class internal name must not be null.");
    }/*w  w  w . j  av  a  2 s  . c  o m*/

    final InsnList instructions = this.methodNode.instructions;
    if (isStatic()) {
        // load parameters
        this.methodVariables.loadArgs(instructions);
        // invoke static
        instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, superClassInternalName, this.methodNode.name,
                this.methodNode.desc, false));
    } else {
        // load this
        this.methodVariables.loadVar(instructions, 0);
        // load parameters
        this.methodVariables.loadArgs(instructions);
        // invoke special
        instructions.add(new MethodInsnNode(Opcodes.INVOKESPECIAL, superClassInternalName, this.methodNode.name,
                this.methodNode.desc, false));
    }
    // return
    this.methodVariables.returnValue(instructions);
}

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

License:Apache License

AbstractInsnNode findInitConstructorInstruction() {
    int nested = 0;
    for (AbstractInsnNode insnNode = this.methodNode.instructions
            .getFirst(); insnNode != null; insnNode = insnNode.getNext()) {
        if (insnNode instanceof TypeInsnNode) {
            if (insnNode.getOpcode() == Opcodes.NEW) {
                // new object().
                nested++;//w ww  .  j  a v a 2  s  . co m
            }
        } else if (insnNode instanceof MethodInsnNode) {
            final MethodInsnNode methodInsnNode = (MethodInsnNode) insnNode;
            if (methodInsnNode.getOpcode() == Opcodes.INVOKESPECIAL && methodInsnNode.name.equals("<init>")) {
                if (--nested < 0) {
                    // find this() or super().
                    return insnNode.getNext();
                }
            }
        }
    }

    return null;
}

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

License:Apache License

void invokeConstructor(final InsnList instructions, final Type type, final Method method) {
    String owner = type.getSort() == Type.ARRAY ? type.getDescriptor() : type.getInternalName();
    instructions.add(/*from w ww . j  a  v a 2s .  c om*/
            new MethodInsnNode(Opcodes.INVOKESPECIAL, owner, method.getName(), method.getDescriptor(), false));
}

From source file:com.nginious.http.serialize.JsonDeserializerCreator.java

License:Apache License

/**
 * Creates bytecode which implements the {@link JsonDeserializer#deserialize(org.json.JSONObject)} method for
 * the deserializer class being created.
 * /*from  ww w . j a  v a2 s.c o m*/
 * @param writer class byte code writer
 * @param intBeanClazzName name of deserializer class being generated
 * @return a method visitor for writing bytecode inside the generated method
 */
private MethodVisitor createDeserializeMethod(ClassWriter writer, String intBeanClazzName) {
    String[] exceptions = { "com/nginious/serialize/SerializerException" };
    MethodVisitor visitor = writer.visitMethod(Opcodes.ACC_PUBLIC, "deserialize",
            "(Lorg/json/JSONObject;)Ljava/lang/Object;", null, exceptions);
    visitor.visitCode();

    visitor.visitTypeInsn(Opcodes.NEW, intBeanClazzName);
    visitor.visitInsn(Opcodes.DUP);
    visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, intBeanClazzName, "<init>", "()V");
    visitor.visitVarInsn(Opcodes.ASTORE, 3);
    return visitor;
}

From source file:com.nginious.http.serialize.JsonSerializerCreator.java

License:Apache License

/**
 * Creates bytecode for serializing a bean property which returns a collection of opaque objects.
 * //from   ww w .  jav a  2 s  .  c  o m
 * @param visitor method visitor used for creating bytecode
 * @param returnType return type of get method in bean
 * @param intBeanClazzName binary name of bean
 * @param methodName binary name of get method in bean
 */
private void createObjectCollectionSerializationCode(MethodVisitor visitor, Class<?> returnType,
        String intBeanClazzName, String methodName, String propertyName) {
    visitor.visitTypeInsn(Opcodes.NEW, "com/nginious/http/serialize/JsonObjectCollectionSerializer");
    visitor.visitInsn(Opcodes.DUP);
    visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/nginious/http/serialize/JsonObjectCollectionSerializer",
            "<init>", "()V");
    visitor.visitVarInsn(Opcodes.ASTORE, 4);

    visitor.visitVarInsn(Opcodes.ALOAD, 4);
    String intReturnClazzName = returnType.getName().replace('.', '/');
    visitor.visitVarInsn(Opcodes.ALOAD, 3);
    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, intBeanClazzName, methodName,
            "()L" + intReturnClazzName + ";");
    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "com/nginious/http/serialize/JsonObjectCollectionSerializer",
            "serialize", "(Ljava/util/Collection;)Lorg/json/JSONArray;");
    visitor.visitVarInsn(Opcodes.ASTORE, 4);

    visitor.visitVarInsn(Opcodes.ALOAD, 1);
    visitor.visitLdcInsn(propertyName);
    visitor.visitVarInsn(Opcodes.ALOAD, 4);
    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "org/json/JSONObject", "put",
            "(Ljava/lang/String;Ljava/lang/Object;)Lorg/json/JSONObject;");
}

From source file:com.nginious.http.serialize.JsonSerializerCreator.java

License:Apache License

/**
 * Creates bytecode for serializing a bean property which returns a collection of beans that are serializable. Bean serializability
 * is determined as described in the class description.
 * //from  w  w  w. jav  a2 s .  c om
 * @param visitor method visitor used for creating bytecode
 * @param intBeanClazzName binary class name of bean
 * @param methodName binary name of get method in bean returning collection
 * @param returnType return type of get method in bean
 * @param collectionBeanType class of serializable bean found in collection
 */
private void createBeanCollectionSerializationCode(MethodVisitor visitor, String intBeanClazzName,
        String methodName, String propertyName, Class<?> returnType, Class<?> collectionBeanType) {
    visitor.visitVarInsn(Opcodes.ALOAD, 0);
    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "com/nginious/http/serialize/JsonSerializer",
            "getSerializerFactory", "()Lcom/nginious/http/serialize/SerializerFactoryImpl;");
    visitor.visitLdcInsn(collectionBeanType.getName());
    visitor.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Class", "forName",
            "(Ljava/lang/String;)Ljava/lang/Class;");
    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "com/nginious/http/serialize/SerializerFactoryImpl",
            "createJsonSerializer", "(Ljava/lang/Class;)Lcom/nginious/http/serialize/JsonSerializer;");
    visitor.visitVarInsn(Opcodes.ASTORE, 4);

    visitor.visitTypeInsn(Opcodes.NEW, "com/nginious/http/serialize/JsonBeanCollectionSerializer");
    visitor.visitInsn(Opcodes.DUP);
    visitor.visitVarInsn(Opcodes.ALOAD, 4);
    visitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/nginious/http/serialize/JsonBeanCollectionSerializer",
            "<init>", "(Lcom/nginious/http/serialize/JsonSerializer;)V");
    visitor.visitVarInsn(Opcodes.ASTORE, 5);

    visitor.visitVarInsn(Opcodes.ALOAD, 5);
    String intReturnClazzName = returnType.getName().replace('.', '/');
    visitor.visitVarInsn(Opcodes.ALOAD, 3);
    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, intBeanClazzName, methodName,
            "()L" + intReturnClazzName + ";");
    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "com/nginious/http/serialize/JsonBeanCollectionSerializer",
            "serialize", "(Ljava/util/Collection;)Lorg/json/JSONArray;");
    visitor.visitVarInsn(Opcodes.ASTORE, 5);

    visitor.visitVarInsn(Opcodes.ALOAD, 1);
    visitor.visitLdcInsn(propertyName);
    visitor.visitVarInsn(Opcodes.ALOAD, 5);
    visitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "org/json/JSONObject", "put",
            "(Ljava/lang/String;Ljava/lang/Object;)Lorg/json/JSONObject;");
}