Package org.apache.xbean.asm4

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

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        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);
        mv.visitFieldInsn(Opcodes.PUTFIELD, proxyClassFileName, FIELD_INTERCEPTOR_HANDLER, Type.getDescriptor(InterceptorHandler.class));

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

            // load the delegate variable
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitFieldInsn(Opcodes.GETFIELD, proxyClassFileName, FIELD_PROXIED_INSTANCE, Type.getDescriptor(classToProxy));

            int offset = 1;
            for (Class<?> aClass : delegatedMethod.getParameterTypes())
            {
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            int offset = 1;
            for (Class<?> aClass : delegatedMethod.getParameterTypes())
            {
                final Type type = Type.getType(aClass);
                mv.visitVarInsn(type.getOpcode(Opcodes.ILOAD), offset);
                offset += type.getSize();
            }

            final Type declaringClass = Type.getType(delegatedMethod.getDeclaringClass());
            mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, declaringClass.getInternalName(), delegatedMethod.getName(), methodDescriptor);
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        // return ((<returntype>) invocationHandler.invoke(this, {methodIndex}, new Object[] { <function arguments }))[.<primitive>Value()];

        final Label l4 = new Label();
        mv.visitLabel(l4);

        mv.visitVarInsn(Opcodes.ALOAD, 0);

        // get the invocationHandler field from this class
        mv.visitFieldInsn(Opcodes.GETFIELD, proxyClassFileName, FIELD_INTERCEPTOR_HANDLER, Type.getDescriptor(InterceptorHandler.class));

        // add the Method from the static array as first parameter
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        // catch InvocationTargetException
        if (exceptionTypes.length > 0)
        {
            mv.visitLabel(l2);
            mv.visitVarInsn(Opcodes.ASTORE, length);

            final Label l5 = new Label();
            mv.visitLabel(l5);

            for (int i = 0; i < exceptionTypes.length; i++)
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            for (int i = 0; i < exceptionTypes.length; i++)
            {
                final Class<?> exceptionType = exceptionTypes[i];

                mv.visitLdcInsn(Type.getType("L" + exceptionType.getCanonicalName().replace('.', '/') + ";"));
                mv.visitVarInsn(Opcodes.ALOAD, length);
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "getCause",
                        "()Ljava/lang/Throwable;");
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;");
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Object", "equals", "(Ljava/lang/Object;)Z");
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                mv.visitJumpInsn(Opcodes.IFEQ, l6);

                final Label l7 = new Label();
                mv.visitLabel(l7);

                mv.visitVarInsn(Opcodes.ALOAD, length);
                mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "getCause",
                        "()Ljava/lang/Throwable;");
                mv.visitTypeInsn(Opcodes.CHECKCAST, getCastType(exceptionType));
                mv.visitInsn(Opcodes.ATHROW);
                mv.visitLabel(l6);
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                if (i == (exceptionTypes.length - 1))
                {
                    mv.visitTypeInsn(Opcodes.NEW, "java/lang/reflect/UndeclaredThrowableException");
                    mv.visitInsn(Opcodes.DUP);
                    mv.visitVarInsn(Opcodes.ALOAD, length);
                    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/reflect/UndeclaredThrowableException", "<init>",
                            "(Ljava/lang/Throwable;)V");
                    mv.visitInsn(Opcodes.ATHROW);
                }
            }
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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);

            mv.visitInsn(Opcodes.RETURN);
            mv.visitMaxs(-1, -1);
            mv.visitEnd();
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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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