Examples of jodd.asm5.MethodVisitor.visitFieldInsn()

jodd.asm5.MethodVisitor.visitFieldInsn()
Visits a field instruction. A field instruction is an instruction that loads or stores the value of a field of an object. @param opcode the opcode of the type instruction to be visited. This opcode is either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD. @param owner the internal name of the field's owner class (see {@link Type#getInternalName() getInternalName}). @param name the field's name. @param desc the field's descriptor (see {@link Type Type}).


        final String methodName = getterName(cmrField.getName());
        final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, methodName, "()" + cmrField.getProxyDescriptor(), null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName() + "Cmr", cmrField.getAccessorDescriptor());
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());


        // return this.${cmrField.name}Cmr.get(this.${cmdField.name});  
        // this takes the value stored in the CMR field (which might be a single value or

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        final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, methodName, "()" + cmrField.getProxyDescriptor(), null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName() + "Cmr", cmrField.getAccessorDescriptor());
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());


        // return this.${cmrField.name}Cmr.get(this.${cmdField.name});  
        // this takes the value stored in the CMR field (which might be a single value or 
        // a Set or Collection), and hands it to the appropriate accessor. 
        mv.visitMethodInsn(INVOKEVIRTUAL, cmrField.getAccessorInternalName(), "get", cmrField.getCmrStyle().getGetterDescriptor(), false);

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        // if this is a Many relationship, the CMR field contains a Set value.  The accessor 
        // will process the elements in the Set, removing any existing ones, and then populating 
        // the Set with the new values from the new value source. 
        if (cmrField.getCmrStyle() != CmrStyle.SINGLE) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName() + "Cmr", cmrField.getAccessorDescriptor());
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, cmrField.getAccessorInternalName(), "set", cmrField.getCmrStyle().getSetterDescriptor(), false);
            mv.visitInsn(RETURN);

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        // the Set with the new values from the new value source. 
        if (cmrField.getCmrStyle() != CmrStyle.SINGLE) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName() + "Cmr", cmrField.getAccessorDescriptor());
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, cmrField.getAccessorInternalName(), "set", cmrField.getCmrStyle().getSetterDescriptor(), false);
            mv.visitInsn(RETURN);
        } else {
            // this is a single value.  We pass the existing value and the old value to

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            // this is a single value.  We pass the existing value and the old value to 
            // the accessor, then must cast the accessor return value to the target type 
            // so we can store it in the real CMR field. 
            mv.visitVarInsn(ALOAD, 0);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName() + "Cmr", cmrField.getAccessorDescriptor());
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, cmrField.getAccessorInternalName(), "set", cmrField.getCmrStyle().getSetterDescriptor(), false);
            mv.visitTypeInsn(CHECKCAST, cmrField.getType().getInternalName());

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            // so we can store it in the real CMR field. 
            mv.visitVarInsn(ALOAD, 0);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName() + "Cmr", cmrField.getAccessorDescriptor());
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, cmrField.getAccessorInternalName(), "set", cmrField.getCmrStyle().getSetterDescriptor(), false);
            mv.visitTypeInsn(CHECKCAST, cmrField.getType().getInternalName());
            mv.visitFieldInsn(PUTFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
            mv.visitInsn(RETURN);

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            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, cmrField.getAccessorInternalName(), "set", cmrField.getCmrStyle().getSetterDescriptor(), false);
            mv.visitTypeInsn(CHECKCAST, cmrField.getType().getInternalName());
            mv.visitFieldInsn(PUTFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
            mv.visitInsn(RETURN);
        }
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }

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        final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, selectMethod.getName(), Type.getMethodDescriptor(selectMethod), null, getExceptionTypes(selectMethod));
        mv.visitCode();


        // push deploymentInfo
        mv.visitFieldInsn(GETSTATIC, implClassName, "deploymentInfo", "Ljava/lang/Object;");


        // push method signature
        mv.visitLdcInsn(getSelectMethodSignature(selectMethod));


        // push return type, but only if the executeMethod is not going to be for void or

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        mv.visitMethodInsn(INVOKESPECIAL, classFileName, "<init>", descriptor, false);


        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(PUTFIELD, proxyClassFileName, "this$handler", "Ljava/lang/reflect/InvocationHandler;");
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 1);
        return mv;
    }

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        mv.visitMethodInsn(INVOKESPECIAL, classFileName, "<init>", descriptor, false);


        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(PUTFIELD, proxyClassFileName, "this$handler", "Ljava/lang/reflect/InvocationHandler;");
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 1);
        return mv;
    }

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