Examples of org.objectweb.asm.MethodVisitor.visitMethodInsn()

org.objectweb.asm.MethodVisitor.visitMethodInsn()
Visits a method instruction. A method instruction is an instruction that invokes a method. @param opcode the opcode of the type instruction to be visited. Thisopcode is either INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC or INVOKEINTERFACE. @param owner the internal name of the method's owner class (see {@link Type#getInternalName() getInternalName}). @param name the method's name. @param desc the method's descriptor (see {@link Type Type}).

        }


        if (noArgsConstructor) {
            // GENERATE super()
            methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
            methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, superclassType.getInternalName(), "<init>",
                    Type.getMethodDescriptor(Type.VOID_TYPE, new Type[0]));
            // END super()
        } else {
            // GENERATE super(target)
            methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);

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            // END super()
        } else {
            // GENERATE super(target)
            methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
            methodVisitor.visitVarInsn(Opcodes.ALOAD, 1);
            methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, superclassType.getInternalName(), "<init>",
                    Type.getMethodDescriptor(Type.VOID_TYPE, new Type[]{superclassType}));
            // END super(target)
        }


        // GENERATE helper = new ExceptionHelper(this, target, source, lineNumber)

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        methodVisitor.visitInsn(Opcodes.DUP);
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 1);
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 2);
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 3);
        methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, helperType.getInternalName(), "<init>",
                Type.getMethodDescriptor(Type.VOID_TYPE, new Type[]{throwableType, throwableType, scriptSourceType, integerType}));


        methodVisitor.visitFieldInsn(Opcodes.PUTFIELD, generatedType.getInternalName(), "helper",
                helperType.getDescriptor());

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            methodVisitor.visitCode();


            methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
            methodVisitor.visitFieldInsn(Opcodes.GETFIELD, generatedType.getInternalName(), "helper",
                    helperType.getDescriptor());
            methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, helperType.getInternalName(), method.getName(),
                    methodDescriptor);


            methodVisitor.visitInsn(Opcodes.ARETURN);
            methodVisitor.visitMaxs(0, 0);
            methodVisitor.visitEnd();

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                new String[0]);
        methodVisitor.visitCode();


        // super()
        methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
        methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, superclassType.getInternalName(), "<init>",
                constructorDescriptor);


        methodVisitor.visitInsn(Opcodes.RETURN);
        methodVisitor.visitMaxs(0, 0);
        methodVisitor.visitEnd();

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    private static void genConstructor(ClassWriter cw, final String superClass) {
        MethodVisitor mv;
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, superClass, "<init>", "()V");
        mv.visitInsn(Opcodes.RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }

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        String descriptor = BytecodeHelper.getMethodDescriptor(method.getReturnType(), method.getParameterTypes());


        // make call
        if (Modifier.isStatic(method.getModifiers())) {
            genLoadParameters(2, mv, method);
            mv.visitMethodInsn(Opcodes.INVOKESTATIC, type, method.getName(), descriptor);
        } else {
            mv.visitVarInsn(Opcodes.ALOAD, 1);
            BytecodeHelper.doCast(mv, callClass);
            genLoadParameters(2, mv, method);
            mv.visitMethodInsn((useInterface) ? Opcodes.INVOKEINTERFACE : Opcodes.INVOKEVIRTUAL, type, method.getName(), descriptor);

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            mv.visitMethodInsn(Opcodes.INVOKESTATIC, type, method.getName(), descriptor);
        } else {
            mv.visitVarInsn(Opcodes.ALOAD, 1);
            BytecodeHelper.doCast(mv, callClass);
            genLoadParameters(2, mv, method);
            mv.visitMethodInsn((useInterface) ? Opcodes.INVOKEINTERFACE : Opcodes.INVOKEVIRTUAL, type, method.getName(), descriptor);
        }


        BytecodeHelper.box(mv, method.getReturnType());
        if (method.getReturnType() == void.class) {
            mv.visitInsn(Opcodes.ACONST_NULL);

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            String descriptor = BytecodeHelper.getMethodDescriptor(method.getReturnType(), method.getParameterTypes());


            // make call
             if (Modifier.isStatic(method.getModifiers())) {
                MethodHandleFactory.genLoadParametersDirect(2, mv,  method);
                mv.visitMethodInsn(Opcodes.INVOKESTATIC, type, method.getName(), descriptor);
            } else {
                mv.visitVarInsn(Opcodes.ALOAD, 1);
                BytecodeHelper.doCast(mv, callClass);
                MethodHandleFactory.genLoadParametersDirect(2, mv, method);
                mv.visitMethodInsn((useInterface) ? Opcodes.INVOKEINTERFACE : Opcodes.INVOKEVIRTUAL, type, method.getName(), descriptor);

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                mv.visitMethodInsn(Opcodes.INVOKESTATIC, type, method.getName(), descriptor);
            } else {
                mv.visitVarInsn(Opcodes.ALOAD, 1);
                BytecodeHelper.doCast(mv, callClass);
                MethodHandleFactory.genLoadParametersDirect(2, mv, method);
                mv.visitMethodInsn((useInterface) ? Opcodes.INVOKEINTERFACE : Opcodes.INVOKEVIRTUAL, type, method.getName(), descriptor);
            }


            BytecodeHelper.box(mv, method.getReturnType());
            if (method.getReturnType() == void.class) {
                mv.visitInsn(Opcodes.ACONST_NULL);

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