Package org.apache.xbean.asm4

Examples of org.apache.xbean.asm4.MethodVisitor.visitVarInsn()

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        // fill method body
        mv.visitCode();

        // load the contextual instance Provider
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, proxyClassFileName, FIELD_INSTANCE_PROVIDER, Type.getDescriptor(Provider.class));

        mv.visitInsn(Opcodes.ARETURN);

        mv.visitMaxs(-1, -1);
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            }

            final String descriptor = Type.getConstructorDescriptor(superDefaultCt);
            final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", descriptor, null, null);
            mv.visitCode();
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, parentClassFileName, "<init>", descriptor);

            // the instance provider field
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitInsn(Opcodes.ACONST_NULL);
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            mv.visitCode();
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, parentClassFileName, "<init>", descriptor);

            // the instance provider field
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitInsn(Opcodes.ACONST_NULL);
            mv.visitFieldInsn(Opcodes.PUTFIELD, proxyClassFileName, FIELD_INSTANCE_PROVIDER, Type.getDescriptor(Provider.class));

            mv.visitInsn(Opcodes.RETURN);
            mv.visitMaxs(-1, -1);
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            // fill method body
            mv.visitCode();

            // load the contextual instance Provider
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitFieldInsn(Opcodes.GETFIELD, proxyClassFileName, FIELD_INSTANCE_PROVIDER, Type.getDescriptor(Provider.class));

            // invoke the get() method on the Provider
            mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Provider.class), "get", "()Ljava/lang/Object;");
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            // now calculate the parameters
            int offset = 1;
            for (Class<?> aClass : delegatedMethod.getParameterTypes())
            {
                final Type type = Type.getType(aClass);
                mv.visitVarInsn(type.getOpcode(Opcodes.ILOAD), offset);
                offset += type.getSize();
            }

            // and finally invoke the target method on the provided Contextual Instance
            final Type declaringClass = Type.getType(delegatedMethod.getDeclaringClass());
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        MethodVisitor mv = cw.visitMethod(modifier, method.getName(), Type.getMethodDescriptor(method), null, null);
        mv.visitCode();


        mv.visitVarInsn(Opcodes.ALOAD, 0);

        // add the Method from the static array as first parameter
        mv.visitFieldInsn(Opcodes.GETSTATIC, proxyClassFileName, FIELD_PROTECTED_METHODS, Type.getDescriptor(Method[].class));

        // push the methodIndex of the current method
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        // and now load the Method from the array
        mv.visitInsn(Opcodes.AALOAD);


        // now invoke the get() on the contextual instance Provider<T>
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, proxyClassFileName, FIELD_INSTANCE_PROVIDER, Type.getDescriptor(Provider.class));

        // invoke the get() method on the Provider
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Provider.class), "get", "()Ljava/lang/Object;");
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        // fill method body
        mv.visitCode();

        // load the contextual instance Provider
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, proxyClassFileName, FIELD_INTERCEPTOR_HANDLER, Type.getDescriptor(InterceptorHandler.class));

        mv.visitInsn(Opcodes.ARETURN);

        mv.visitMaxs(-1, -1);
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    {
        // was: final String descriptor = Type.getConstructorDescriptor(classToProxy.getDeclaredConstructor());
        // but we need to get a default constructor even if the bean uses constructor injection
        final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, classFileName, "<init>", "()V");

        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitInsn(Opcodes.ACONST_NULL);
        mv.visitFieldInsn(Opcodes.PUTFIELD, proxyClassFileName, FIELD_PROXIED_INSTANCE, Type.getDescriptor(classToProxy));
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        final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, classFileName, "<init>", "()V");

        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitInsn(Opcodes.ACONST_NULL);
        mv.visitFieldInsn(Opcodes.PUTFIELD, proxyClassFileName, FIELD_PROXIED_INSTANCE, Type.getDescriptor(classToProxy));

        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitInsn(Opcodes.ACONST_NULL);
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