Examples of org.aspectj.apache.bcel.generic.InstructionFactory.createInvoke()

Class org.aspectj.apache.bcel.generic.InstructionFactory

Examples of org.aspectj.apache.bcel.generic.InstructionFactory.createInvoke()

org.aspectj.apache.bcel.generic.InstructionFactory.createInvoke()
Create an invoke instruction. @param class_name name of the called class @param name name of the called method @param ret_type return type of method @param arg_types argument types of method @param kind how to invoke, i.e., INVOKEINTERFACE, INVOKESTATIC, INVOKEVIRTUAL, or INVOKESPECIAL @see Constants

        il.append(ifNonNull);
        il.append(factory.createNew(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION.getName()));
        il.append(InstructionConstants.DUP);
        il.append(new PUSH(classGen.getConstantPoolGen(), aspectType.getName()));
        il.append(InstructionConstants.ACONST_NULL);
        il.append(factory.createInvoke(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION.getName(), "<init>", Type.VOID, new Type[] { Type.STRING, new ObjectType("java.lang.Throwable") }, Constants.INVOKESPECIAL));
        il.append(InstructionConstants.ATHROW);
        InstructionHandle ifElse = il.append(InstructionConstants.ALOAD_1);
        ifNonNull.setTarget(ifElse);
        il.append(InstructionFactory.createReturn(Type.OBJECT));

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        il.append(InstructionFactory.createReturn(Type.OBJECT));


        InstructionHandle handler = il.append(InstructionConstants.ASTORE_1);
        il.append(factory.createNew(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION.getName()));
        il.append(InstructionConstants.DUP);
        il.append(factory.createInvoke(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION.getName(), "<init>", Type.VOID, Type.NO_ARGS, Constants.INVOKESPECIAL));
        il.append(InstructionConstants.ATHROW);


        method.addExceptionHandler(
            tryStart, handler.getPrev(), handler, new ObjectType("java.lang.Exception"), false
        );

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        InstructionList il = method.getBody();
        InstructionHandle tryStart = il.append(InstructionConstants.ALOAD_0);
        il.append(new PUSH(factory.getConstantPool(), NameMangler.perTypeWithinLocalAspectOf(aspectType)));
        il.append(InstructionConstants.ACONST_NULL);//Class[] for "getDeclaredMethod"
        il.append(factory.createInvoke(
                "java/lang/Class",
                "getDeclaredMethod",
                Type.getType("Ljava/lang/reflect/Method;"),
                new Type[]{Type.getType("Ljava/lang/String;"), Type.getType("[Ljava/lang/Class;")},
                Constants.INVOKEVIRTUAL

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                new Type[]{Type.getType("Ljava/lang/String;"), Type.getType("[Ljava/lang/Class;")},
                Constants.INVOKEVIRTUAL
        ));
        il.append(InstructionConstants.ACONST_NULL);//Object for "invoke", static method
        il.append(InstructionConstants.ACONST_NULL);//Object[] for "invoke", no arg
        il.append(factory.createInvoke(
                "java/lang/reflect/Method",
                "invoke",
                Type.OBJECT,
                new Type[]{Type.getType("Ljava/lang/Object;"), Type.getType("[Ljava/lang/Object;")},
                Constants.INVOKEVIRTUAL

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        classGen.addMethodGen(method);


        InstructionList il = method.getBody();
        il.append(factory.createNew(aspectType.getName()));
        il.append(InstructionConstants.DUP);
        il.append(factory.createInvoke(
                aspectType.getName(), "<init>", Type.VOID, Type.NO_ARGS, Constants.INVOKESPECIAL
        ));
        il.append(InstructionConstants.ASTORE_1);
        il.append(InstructionConstants.ALOAD_1);
        il.append(InstructionConstants.ALOAD_0);

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        il.append(ifNotNull);
        il.append(factory.createNew(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION.getName()));
        il.append(InstructionConstants.DUP);
        il.append(new PUSH(classGen.getConstantPoolGen(), aspectType.getName()));
        il.append(Utility.createGet(factory, AjcMemberMaker.initFailureCauseField(aspectType)));
        il.append(factory.createInvoke(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION.getName(), "<init>", Type.VOID, new Type[] { Type.STRING, new ObjectType("java.lang.Throwable") }, Constants.INVOKESPECIAL));
        il.append(InstructionConstants.ATHROW);
        InstructionHandle ifElse = il.append(Utility.createGet(factory, AjcMemberMaker.perSingletonField(aspectType)));
        il.append(InstructionFactory.createReturn(Type.OBJECT));
        ifNotNull.setTarget(ifElse);
    }

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        classGen.addMethodGen(method);


        InstructionList il = method.getBody();
        il.append(factory.createNew(aspectType.getName()));
        il.append(InstructionConstants.DUP);
        il.append(factory.createInvoke(aspectType.getName(), "<init>", Type.VOID, Type.NO_ARGS, Constants.INVOKESPECIAL));
        il.append(Utility.createSet(factory,  AjcMemberMaker.perSingletonField(aspectType)));
        il.append(InstructionFactory.createReturn(Type.VOID));


        // patch <clinit> to delegate to ajc$postClinit at the end
        LazyMethodGen clinit = classGen.getStaticInitializer();

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        il.append(InstructionFactory.createReturn(Type.VOID));


        // patch <clinit> to delegate to ajc$postClinit at the end
        LazyMethodGen clinit = classGen.getStaticInitializer();
        il = new InstructionList();
        InstructionHandle tryStart = il.append(factory.createInvoke(aspectType.getName(), NameMangler.AJC_POST_CLINIT_NAME, Type.VOID, Type.NO_ARGS, Constants.INVOKESTATIC));
        BranchInstruction tryEnd = InstructionFactory.createBranchInstruction(Constants.GOTO, null);
        il.append(tryEnd);
        InstructionHandle handler = il.append(InstructionConstants.ASTORE_0);
        il.append(InstructionConstants.ALOAD_0);
        il.append(Utility.createSet(factory, AjcMemberMaker.initFailureCauseField(aspectType)));

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        InstructionHandle ifNullElse = il.append(new POP());
        ifNull.setTarget(ifNullElse);
        InstructionHandle ifEqElse = il.append(factory.createNew(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION.getName()));
        ifEq.setTarget(ifEqElse);
        il.append(InstructionConstants.DUP);
        il.append(factory.createInvoke(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION.getName(), "<init>", Type.VOID, Type.NO_ARGS, Constants.INVOKESPECIAL));
        il.append(new ATHROW());
    }


    private void generatePerObjectHasAspectMethod(LazyClassGen classGen) {
        InstructionFactory factory = classGen.getFactory();

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        il.append(ifNonNull);
        il.append(InstructionConstants.ALOAD_0);
        il.append(factory.createCheckCast(interfaceType));
        il.append(factory.createNew(aspectType.getName()));
        il.append(InstructionConstants.DUP);
        il.append(factory.createInvoke(aspectType.getName(), "<init>", Type.VOID, Type.NO_ARGS, Constants.INVOKESPECIAL));
        il.append(Utility.createInvoke(factory, Constants.INVOKEINTERFACE, AjcMemberMaker.perObjectInterfaceSet(aspectType)));
        InstructionHandle end = il.append(InstructionFactory.createReturn(Type.VOID));
        ifEq.setTarget(end);
        ifNonNull.setTarget(end);
    }

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