Example usage for org.objectweb.asm Opcodes INVOKESPECIAL

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

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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.google.monitoring.runtime.instrumentation.adapters.EscapeMethodAdapter.java

License:Apache License

/**
 * Reflection-based allocation (@see java.lang.reflect.Array#newInstance) is
 * triggered with a static method call (INVOKESTATIC), so we hook it here.
 * Class initialization is triggered with a constructor call (INVOKESPECIAL)
 * so we hook that here too as a proxy for the new bytecode which leaves an
 * uninitialized object on the stack that we're not allowed to touch.
 * {@link Object#clone} is also a call to INVOKESPECIAL,
 * and is hooked here.  {@link Class#newInstance} and
 * {@link java.lang.reflect.Constructor#newInstance} are both
 * INVOKEVIRTUAL calls, so they are hooked here, as well.
 *///from   w  w  w.j  a  v a2s. co m
@Override
public void visitMethodInsn(int opcode, String owner, String name, String signature, boolean itf) {

    if (opcode == Opcodes.INVOKESPECIAL) {
        if ("<init>".equals(name) && outstandingAllocs > 0) {
            // Tricky because superclass initializers mean there can be more calls
            // to <init> than calls to NEW; hence outstandingAllocs.
            --outstandingAllocs;

            // Most of the time (i.e. in bytecode generated by javac) it is the case
            // that following an <init> call the top of the stack has a reference ot
            // the newly-initialized object.  But nothing in the JVM Spec requires
            // this, so we need to play games with the stack to make an explicit
            // extra copy (and then discard it).

            dupStackElementBeforeSignatureArgs(signature);
            super.visitMethodInsn(opcode, owner, name, signature, itf);
            super.visitLdcInsn(-1);
            super.visitInsn(Opcodes.SWAP);
            invokeRecordAllocation(owner);
            super.visitInsn(Opcodes.POP);
            return;
        }
    }

    super.visitMethodInsn(opcode, owner, name, signature, itf);
}

From source file:com.googlecode.d2j.dex.BaseDexExceptionHandler.java

License:Apache License

@Override
public void handleMethodTranslateException(Method method, DexMethodNode methodNode, MethodVisitor mv,
        Exception e) {// www.  j  a va 2  s  .com
    // replace the generated code with
    // 'return new RuntimeException("D2jFail translate: xxxxxxxxxxxxx");'
    StringWriter s = new StringWriter();
    s.append("d2j fail translate: ");
    e.printStackTrace(new PrintWriter(s));
    String msg = s.toString();
    mv.visitTypeInsn(Opcodes.NEW, "java/lang/RuntimeException");
    mv.visitInsn(Opcodes.DUP);
    mv.visitLdcInsn(msg);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Runtime", "<init>", "(Ljava/lang/String;)V");
    mv.visitInsn(Opcodes.ATHROW);
}

From source file:com.googlecode.ddom.weaver.asm.ConstructorEnhancer.java

License:Apache License

@Override
public void visitMethodInsn(int opcode, String owner, String name, String desc) {
    super.visitMethodInsn(opcode, owner, name, desc);
    if (!inlined && opcode == Opcodes.INVOKESPECIAL) {
        for (String methodName : methodNames) {
            super.visitVarInsn(Opcodes.ALOAD, 0);
            super.visitMethodInsn(Opcodes.INVOKESPECIAL, className, methodName, "()V");
        }/* ww  w .j ava 2s  .co m*/
        inlined = true;
    }
}

From source file:com.googlecode.ddom.weaver.compound.CompoundClassGenerator.java

License:Apache License

@Override
public void visitEnd() {
    for (int i = 0; i < componentClasses.length; i++) {
        String componentClass = Util.classNameToInternalName(componentClasses[i]);
        FieldVisitor fv = cv.visitField(Opcodes.ACC_PRIVATE, "c" + i, "L" + componentClass + ";", null, null);
        if (fv != null) {
            fv.visitEnd();//from w  ww.  j a  v  a 2s . co m
        }
    }
    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
    if (mv != null) {
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        for (int i = 0; i < componentClasses.length; i++) {
            String componentClass = Util.classNameToInternalName(componentClasses[i]);
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitTypeInsn(Opcodes.NEW, componentClass);
            mv.visitInsn(Opcodes.DUP);
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, componentClass, "<init>", "()V");
            mv.visitFieldInsn(Opcodes.PUTFIELD, className, "c" + i, "L" + componentClass + ";");
        }
        mv.visitInsn(Opcodes.RETURN);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", "L" + className + ";", null, l0, l1, 0);
        mv.visitMaxs(3, 1);
        mv.visitEnd();
    }
    cv.visitEnd();
}

From source file:com.googlecode.ddom.weaver.ext.ModelExtensionClass.java

License:Apache License

public void accept(ClassVisitor classVisitor) {
    ImplementationInfo implementationInfo = info.getImplementation().get(ImplementationInfo.class);
    String name = Util.classNameToInternalName(info.getClassName());
    String superName = Util.classNameToInternalName(info.getSuperClassName());
    classVisitor.visit(Opcodes.V1_5,//  w  ww. j a  v a 2  s .  c  om
            info.isAbstract() ? Opcodes.ACC_PUBLIC | Opcodes.ACC_ABSTRACT : Opcodes.ACC_PUBLIC, name, null,
            superName, new String[] {
                    Util.classNameToInternalName(info.getExtensionInterface().getClassInfo().getName()) });
    for (ConstructorInfo constructor : implementationInfo.getConstructors()) {
        MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PUBLIC, "<init>", constructor.getDescriptor(),
                constructor.getSignature(), constructor.getExceptions());
        if (mv != null) {
            mv.visitCode();
            Label l0 = new Label();
            mv.visitLabel(l0);
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            Type[] argumentTypes = constructor.getArgumentTypes();
            for (int i = 0; i < argumentTypes.length; i++) {
                mv.visitVarInsn(argumentTypes[i].getOpcode(Opcodes.ILOAD), i + 1);
            }
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, superName, "<init>", constructor.getDescriptor());
            mv.visitInsn(Opcodes.RETURN);
            Label l1 = new Label();
            mv.visitLabel(l1);
            mv.visitLocalVariable("this", "L" + name + ";", null, l0, l1, 0);
            for (int i = 0; i < argumentTypes.length; i++) {
                mv.visitLocalVariable("arg" + i, argumentTypes[i].getDescriptor(), null, l0, l1, i + 1);
            }
            mv.visitMaxs(argumentTypes.length + 1, argumentTypes.length + 1);
            mv.visitEnd();
        }
    }
    classVisitor.visitEnd();
}

From source file:com.googlecode.ddom.weaver.ext.ModelExtensionFactoryDelegateImplementation.java

License:Apache License

public void accept(ClassVisitor classVisitor) {
    String factoryName = Util
            .classNameToInternalName(modelExtensionClassInfo.getFactoryDelegateImplementationClassName());
    classVisitor.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, factoryName, null, "java/lang/Object", new String[] {
            Util.classNameToInternalName(implementationInfo.getFactoryDelegateInterfaceName()) });
    String className = Util.classNameToInternalName(modelExtensionClassInfo.getClassName());
    {/*from   w  w  w. ja v  a2s.  c o  m*/
        MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
        if (mv != null) {
            mv.visitCode();
            Label l0 = new Label();
            mv.visitLabel(l0);
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
            mv.visitInsn(Opcodes.RETURN);
            Label l1 = new Label();
            mv.visitLabel(l1);
            mv.visitLocalVariable("this", "L" + className + ";", null, l0, l1, 0);
            mv.visitMaxs(1, 1);
            mv.visitEnd();
        }
    }
    for (ConstructorInfo constructor : implementationInfo.getConstructors()) {
        MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PUBLIC, "create",
                constructor.getFactoryDelegateMethodDescriptor(), constructor.getSignature(),
                constructor.getExceptions());
        if (mv != null) {
            mv.visitCode();
            Label l0 = new Label();
            mv.visitLabel(l0);
            mv.visitTypeInsn(Opcodes.NEW, className);
            mv.visitInsn(Opcodes.DUP);
            Type[] argumentTypes = constructor.getArgumentTypes();
            for (int i = 0; i < argumentTypes.length; i++) {
                mv.visitVarInsn(argumentTypes[i].getOpcode(Opcodes.ILOAD), i + 1);
            }
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, className, "<init>", constructor.getDescriptor());
            mv.visitInsn(Opcodes.ARETURN);
            Label l1 = new Label();
            mv.visitLabel(l1);
            mv.visitLocalVariable("this", "L" + factoryName + ";", null, l0, l1, 0);
            for (int i = 0; i < argumentTypes.length; i++) {
                mv.visitLocalVariable("arg" + i, argumentTypes[i].getDescriptor(), null, l0, l1, i + 1);
            }
            mv.visitMaxs(argumentTypes.length + 2, argumentTypes.length + 1);
            mv.visitEnd();
        }
    }
    classVisitor.visitEnd();
}

From source file:com.googlecode.ddom.weaver.ext.ModelExtensionFactoryImplementation.java

License:Apache License

public void accept(ClassVisitor classVisitor) {
    // Note: the name chosen here must match what is expected in ExtensionFactoryLocator
    String name = Util.classNameToInternalName(implementationInfo.getFactoryInterface().getName() + "$$Impl");
    String factoryInterfaceName = Util
            .classNameToInternalName(implementationInfo.getFactoryInterface().getName());
    classVisitor.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, name, null, "java/lang/Object",
            new String[] { factoryInterfaceName });
    {/*w w w  .  j a  va 2  s  .  c om*/
        FieldVisitor fw = classVisitor.visitField(Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL | Opcodes.ACC_STATIC,
                "INSTANCE", "L" + factoryInterfaceName + ";", null, null);
        if (fw != null) {
            fw.visitEnd();
        }
    }
    {
        FieldVisitor fw = classVisitor.visitField(Opcodes.ACC_PRIVATE | Opcodes.ACC_FINAL, "delegates",
                "Ljava/util/Map;", null, null);
        if (fw != null) {
            fw.visitEnd();
        }
    }
    {
        MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PRIVATE, "<init>", "()V", null, null);
        if (mv != null) {
            mv.visitCode();
            Label l0 = new Label();
            mv.visitLabel(l0);
            // Call constructor from superclass
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
            // Create delegates map
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitTypeInsn(Opcodes.NEW, "java/util/HashMap");
            mv.visitInsn(Opcodes.DUP);
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/HashMap", "<init>", "()V");
            mv.visitFieldInsn(Opcodes.PUTFIELD, name, "delegates", "Ljava/util/Map;");
            // Populate delegates map
            for (ModelExtensionInfo modelExtensionInfo : implementationInfo.getModelExtensions()) {
                for (ModelExtensionInterfaceInfo extensionInterface : modelExtensionInfo
                        .getExtensionInterfaces()) {
                    if (!extensionInterface.isAbstract()) {
                        // TODO: this is stupid; we should not recreate the info object here
                        ModelExtensionClassInfo modelExtensionClassInfo = new ModelExtensionClassInfo(
                                implementationInfo.getImplementation(), modelExtensionInfo.getRootInterface(),
                                extensionInterface);
                        String factoryDelegateImplName = Util.classNameToInternalName(
                                modelExtensionClassInfo.getFactoryDelegateImplementationClassName());
                        mv.visitVarInsn(Opcodes.ALOAD, 0);
                        mv.visitFieldInsn(Opcodes.GETFIELD, name, "delegates", "Ljava/util/Map;");
                        mv.visitLdcInsn(Type.getObjectType(Util.classNameToInternalName(
                                modelExtensionClassInfo.getExtensionInterface().getClassInfo().getName())));
                        mv.visitTypeInsn(Opcodes.NEW, factoryDelegateImplName);
                        mv.visitInsn(Opcodes.DUP);
                        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, factoryDelegateImplName, "<init>", "()V");
                        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "put",
                                "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
                        mv.visitInsn(Opcodes.POP);
                    }
                }
            }
            mv.visitInsn(Opcodes.RETURN);
            Label l1 = new Label();
            mv.visitLabel(l1);
            mv.visitLocalVariable("this", "L" + name + ";", null, l0, l1, 0);
            mv.visitMaxs(4, 1);
            mv.visitEnd();
        }
    }
    String factoryDelegateInterfaceName = Util
            .classNameToInternalName(implementationInfo.getFactoryDelegateInterfaceName());
    String getDelegateDesc = "(Ljava/lang/Class;)L" + factoryDelegateInterfaceName + ";";
    {
        MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PRIVATE, "getDelegate", getDelegateDesc, null,
                null);
        if (mv != null) {
            mv.visitCode();
            Label l0 = new Label();
            mv.visitLabel(l0);
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitFieldInsn(Opcodes.GETFIELD, name, "delegates", "Ljava/util/Map;");
            mv.visitVarInsn(Opcodes.ALOAD, 1);
            mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "get",
                    "(Ljava/lang/Object;)Ljava/lang/Object;");
            mv.visitTypeInsn(Opcodes.CHECKCAST, factoryDelegateInterfaceName);
            mv.visitInsn(Opcodes.ARETURN);
            Label l1 = new Label();
            mv.visitLabel(l1);
            mv.visitLocalVariable("this", "L" + name + ";", null, l0, l1, 0);
            mv.visitLocalVariable("extensionInterface", "Ljava/lang/Class;", null, l0, l1, 1);
            mv.visitMaxs(2, 2);
            mv.visitEnd();
        }
    }
    String implementationName = Util.classNameToInternalName(implementationInfo.getImplementation().getName());
    for (ConstructorInfo constructor : implementationInfo.getConstructors()) {
        Type[] constructorArgumentTypes = constructor.getArgumentTypes();
        Type[] argumentTypes = new Type[constructorArgumentTypes.length + 1];
        argumentTypes[0] = Type.getObjectType("java/lang/Class");
        System.arraycopy(constructorArgumentTypes, 0, argumentTypes, 1, constructorArgumentTypes.length);
        MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_PUBLIC, "create",
                Type.getMethodDescriptor(Type.getObjectType(implementationName), argumentTypes), null, null);
        if (mv != null) {
            mv.visitCode();
            Label l0 = new Label();
            mv.visitLabel(l0);
            mv.visitVarInsn(Opcodes.ALOAD, 1);
            Label l1 = new Label();
            mv.visitJumpInsn(Opcodes.IFNONNULL, l1);
            mv.visitTypeInsn(Opcodes.NEW, implementationName);
            mv.visitInsn(Opcodes.DUP);
            for (int i = 0; i < constructorArgumentTypes.length; i++) {
                mv.visitVarInsn(constructorArgumentTypes[i].getOpcode(Opcodes.ILOAD), i + 2);
            }
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, implementationName, "<init>",
                    constructor.getDescriptor());
            mv.visitInsn(Opcodes.ARETURN);
            mv.visitLabel(l1);
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitVarInsn(Opcodes.ALOAD, 1);
            mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, name, "getDelegate", getDelegateDesc);
            for (int i = 0; i < constructorArgumentTypes.length; i++) {
                mv.visitVarInsn(constructorArgumentTypes[i].getOpcode(Opcodes.ILOAD), i + 2);
            }
            mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, factoryDelegateInterfaceName, "create",
                    constructor.getFactoryDelegateMethodDescriptor());
            mv.visitInsn(Opcodes.ARETURN);
            Label l3 = new Label();
            mv.visitLabel(l3);
            mv.visitLocalVariable("this", "L" + name + ";", null, l0, l3, 0);
            mv.visitLocalVariable("extensionInterface", "Ljava/lang/Class;", null, l0, l3, 1);
            for (int i = 0; i < constructorArgumentTypes.length; i++) {
                mv.visitLocalVariable("arg" + i, constructorArgumentTypes[i].getDescriptor(), null, l0, l3,
                        i + 2);
            }
            mv.visitMaxs(argumentTypes.length + 1, argumentTypes.length + 1);
            mv.visitEnd();
        }
    }
    {
        MethodVisitor mv = classVisitor.visitMethod(Opcodes.ACC_STATIC, "<clinit>", "()V", null, null);
        if (mv != null) {
            mv.visitCode();
            mv.visitTypeInsn(Opcodes.NEW, name);
            mv.visitInsn(Opcodes.DUP);
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, name, "<init>", "()V");
            mv.visitFieldInsn(Opcodes.PUTSTATIC, name, "INSTANCE", "L" + factoryInterfaceName + ";");
            mv.visitInsn(Opcodes.RETURN);
            mv.visitMaxs(2, 0);
            mv.visitEnd();
        }
    }
    classVisitor.visitEnd();
}

From source file:com.googlecode.ddom.weaver.inject.PrototypeInjector.java

License:Apache License

public void generateFactoryMethodCode(MethodVisitor mv) {
    mv.visitCode();//w  w  w . j  av  a2 s  . co  m
    mv.visitTypeInsn(Opcodes.NEW, className);
    mv.visitInsn(Opcodes.DUP);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, className, "<init>", "()V");
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitMaxs(2, 0);
    mv.visitEnd();
}

From source file:com.googlecode.ddom.weaver.mixin.ConstructorToMethodConverter.java

License:Apache License

public void visitMethodInsn(int opcode, String owner, String name, String desc) {
    if (lastWasALoad0 && opcode == Opcodes.INVOKESPECIAL) {
        lastWasALoad0 = false;/* ww  w .jav a2  s  .  c  o m*/
        callRemoved = true;
    } else {
        reset();
        mv.visitMethodInsn(opcode, owner, name, desc);
    }
}

From source file:com.intellij.compiler.notNullVerification.ThrowOnNullMethodVisitor.java

License:Apache License

private void generateThrow(@NotNull final String exceptionClass, @NotNull final String description,
        @NotNull final Label end) {
    final String exceptionParamClass = "(" + LangUtils.convertToJavaClassName(String.class.getName()) + ")V";
    mv.visitTypeInsn(Opcodes.NEW, exceptionClass);
    mv.visitInsn(Opcodes.DUP);//from  w  w w .j  a  v a2  s.c om
    mv.visitLdcInsn(description);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, exceptionClass, CONSTRUCTOR_NAME, exceptionParamClass, false);
    mv.visitInsn(Opcodes.ATHROW);
    mv.visitLabel(end);

    setInstrumented();
}