Examples of org.eclipse.persistence.internal.libraries.asm.Label

Package org.eclipse.persistence.internal.libraries.asm

Examples of org.eclipse.persistence.internal.libraries.asm.Label

org.eclipse.persistence.internal.libraries.asm.Label
A label represents a position in the bytecode of a method. Labels are used for jump, goto, and switch instructions, and for try catch blocks. @author Eric Bruneton

        cv_set_value.visitFieldInsn(PUTFIELD, className, PERSISTENCE_FIELDNAME_PREFIX + attribute + PERSISTENCE_FIELDNAME_POSTFIX, VHI_SIGNATURE);


        // if (valueholderinterface.isInstantiated()){
        cv_set_value.visitVarInsn(ALOAD, 1);
        cv_set_value.visitMethodInsn(INVOKEINTERFACE, VHI_SHORT_SIGNATURE, "isInstantiated", "()Z");
        Label l0 = new Label();
        cv_set_value.visitJumpInsn(IFEQ, l0);


        // Object object = getFoo();
        cv_set_value.visitVarInsn(ALOAD, 0);
        if (attributeDetails.getGetterMethodName() != null) {
            cv_set_value.visitMethodInsn(INVOKEVIRTUAL, className, attributeDetails.getGetterMethodName(), "()L" + attributeDetails.getReferenceClassName().replace('.', '/') + ";");
        } else {
            cv_set_value.visitMethodInsn(INVOKEVIRTUAL, className, PERSISTENCE_GET + attributeDetails.attributeName, "()L" + attributeDetails.getReferenceClassName().replace('.', '/') + ";");
        }
        cv_set_value.visitVarInsn(ASTORE, 2);


        // Object value = valueholderinterface.getValue();
        cv_set_value.visitVarInsn(ALOAD, 1);
        cv_set_value.visitMethodInsn(INVOKEINTERFACE, VHI_SHORT_SIGNATURE, "getValue", "()Ljava/lang/Object;");
        cv_set_value.visitVarInsn(ASTORE, 3);


        // if (object != value){
        cv_set_value.visitVarInsn(ALOAD, 2);
        cv_set_value.visitVarInsn(ALOAD, 3);
        if (attributeDetails.getSetterMethodName() != null) {
            cv_set_value.visitJumpInsn(IF_ACMPEQ, l0);
            // setFoo((EntityC)value);
            cv_set_value.visitVarInsn(ALOAD, 0);
            cv_set_value.visitVarInsn(ALOAD, 3);
            cv_set_value.visitTypeInsn(CHECKCAST, attributeDetails.getReferenceClassName().replace('.', '/'));
            cv_set_value.visitMethodInsn(INVOKEVIRTUAL, className, attributeDetails.getSetterMethodName(), "(L" + attributeDetails.getReferenceClassName().replace('.', '/') + ";)V");
            //}
            cv_set_value.visitLabel(l0);
        } else {
            Label l1 = new Label();
            cv_set_value.visitJumpInsn(IF_ACMPEQ, l1);
            // _persistence_setFoo((EntityC)value);
            cv_set_value.visitVarInsn(ALOAD, 0);
            cv_set_value.visitVarInsn(ALOAD, 3);
            cv_set_value.visitTypeInsn(CHECKCAST, attributeDetails.getReferenceClassName().replace('.', '/'));
            cv_set_value.visitMethodInsn(INVOKEVIRTUAL, className, PERSISTENCE_SET + attributeDetails.getAttributeName(), "(L" + attributeDetails.getReferenceClassName().replace('.', '/') + ";)V");
            // }
            cv_set_value.visitLabel(l1);
            cv_set_value.visitFrame(F_SAME, 0, null, 0, null);
            Label l2 = new Label();
            cv_set_value.visitJumpInsn(GOTO, l2);
            // }  
            cv_set_value.visitLabel(l0);
            // else {
            cv_set_value.visitFrame(F_SAME, 0, null, 0, null);

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                                                            // !attributeDetails.isAttributeOnSuperClass())
                                                            // {
                    // clone._attribute_vh = this._attribute_vh.clone();
                    cv_clone.visitVarInsn(ALOAD, 0);
                    cv_clone.visitFieldInsn(GETFIELD, classDetails.getClassName(), PERSISTENCE_FIELDNAME_PREFIX + attributeDetails.getAttributeName() + PERSISTENCE_FIELDNAME_POSTFIX, ClassWeaver.VHI_SIGNATURE);
                    Label label = new Label();
                    cv_clone.visitJumpInsn(IFNULL, label);
                    cv_clone.visitVarInsn(ALOAD, 0);
                    cv_clone.visitVarInsn(ALOAD, 0);
                    cv_clone.visitFieldInsn(GETFIELD, classDetails.getClassName(), PERSISTENCE_FIELDNAME_PREFIX + attributeDetails.getAttributeName() + PERSISTENCE_FIELDNAME_POSTFIX, ClassWeaver.VHI_SIGNATURE);
                    cv_clone.visitMethodInsn(INVOKEINTERFACE, ClassWeaver.VHI_SHORT_SIGNATURE, "clone", "()Ljava/lang/Object;");

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     */
    public void addPersistenceGetSet(ClassDetails classDetails) {
        // create the _persistence_get() method
        MethodVisitor cv_get = cv.visitMethod(ACC_PUBLIC, "_persistence_get", "(Ljava/lang/String;)Ljava/lang/Object;", null, null);


        Label label = null;
        for (AttributeDetails attributeDetails : classDetails.getAttributesMap().values()) {
            if (!attributeDetails.isAttributeOnSuperClass() && !attributeDetails.isVirtualProperty()) {
                if (label != null) {
                    cv_get.visitLabel(label);
                }
                // else if (attribute == "address")
                cv_get.visitVarInsn(ALOAD, 1);
                cv_get.visitLdcInsn(attributeDetails.getAttributeName().intern());
                label = new Label();
                cv_get.visitJumpInsn(IF_ACMPNE, label);
                // return this.address
                cv_get.visitVarInsn(ALOAD, 0);
                cv_get.visitFieldInsn(GETFIELD, classDetails.getClassName(), attributeDetails.getAttributeName(), attributeDetails.getReferenceClassType().getDescriptor());
                // if this is a primitive, get the wrapper class
                String wrapper = ClassWeaver.wrapperFor(attributeDetails.getReferenceClassType().getSort());
                if (wrapper != null) {
                    // Call valueOf on the wrapper (more optimal than
                    // constructor).
                    cv_get.visitMethodInsn(INVOKESTATIC, wrapper, "valueOf", "(" + attributeDetails.getReferenceClassType().getDescriptor() + ")L" + wrapper + ";");
                }


                cv_get.visitInsn(ARETURN);
            }
        }
        if (label != null) {
            cv_get.visitLabel(label);
        }
        // call super, or return null
        if (classDetails.getSuperClassDetails() == null) {
            // return null;
            cv_get.visitInsn(ACONST_NULL);
        } else {
            cv_get.visitVarInsn(ALOAD, 0);
            cv_get.visitVarInsn(ALOAD, 1);
            cv_get.visitMethodInsn(INVOKESPECIAL, classDetails.getSuperClassName(), "_persistence_get", "(Ljava/lang/String;)Ljava/lang/Object;");
        }


        cv_get.visitInsn(ARETURN);
        cv_get.visitMaxs(0, 0);


        // create the _persistence_set() method
        MethodVisitor cv_set = cv.visitMethod(ACC_PUBLIC, "_persistence_set", "(Ljava/lang/String;Ljava/lang/Object;)V", null, null);


        label = null;
        for (AttributeDetails attribute : classDetails.getAttributesMap().values()) {
            if (!attribute.isAttributeOnSuperClass() && !attribute.isVirtualProperty()) {
                if (label != null) {
                    cv_set.visitLabel(label);
                }
                // else if (attribute == "address")
                cv_set.visitVarInsn(ALOAD, 1);
                cv_set.visitLdcInsn(attribute.getAttributeName().intern());
                label = new Label();
                cv_set.visitJumpInsn(IF_ACMPNE, label);
                // this.address = (String)value;
                cv_set.visitVarInsn(ALOAD, 0);
                cv_set.visitVarInsn(ALOAD, 2);
                String wrapper = wrapperFor(attribute.getReferenceClassType().getSort());

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        String methodSig = "(L" + mapType.getInternalName() + "<L" + internalKeyName + ";L" + internalValueName + ";>;)V";
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "setItem", "(L" + mapType.getInternalName() + ";)V", methodSig, null);
        // TODO: Verify that we really want to put @XmlTranient on setItem
        // method
        mv.visitAnnotation("Ljavax/xml/bind/annotation/XmlTransient;", true);
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitFieldInsn(Opcodes.PUTFIELD, qualifiedInternalClassName, "entry", L + mapType.getInternalName() + SEMI_COLON);
        mv.visitInsn(Opcodes.RETURN);
        Label l1 = new Label();
        mv.visitLabel(l1);


        // Replacement?:LocalVariableTypeTableAttribute cvAttr = new
        // LocalVariableTypeTableAttribute();
        // mv.visitAttribute(cvAttr);

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        // Write: public void setItem({collectionType})
        String methodSig = "(L" + collectionType.getInternalName() + "<" + componentTypeInternalName + ">;)V";
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "setItem", "(L" + collectionType.getInternalName() + ";)V", methodSig, null);
        mv.visitAnnotation("Ljavax/xml/bind/annotation/XmlTransient;", true);
        Label l0 = new Label(); // ??
        mv.visitLabel(l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitFieldInsn(Opcodes.PUTFIELD, qualifiedInternalClassName, ITEM, L + collectionType.getInternalName() + SEMI_COLON);
        mv.visitInsn(Opcodes.RETURN);
        Label l1 = new Label(); // ??
        mv.visitLabel(l1);
        mv.visitMaxs(2, 2);
        mv.visitEnd();


        // Write: public {collectionType} getItem()

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        String methodSig = "(L" + mapType.getInternalName() + "<L" + internalKeyName + ";L" + internalValueName + ";>;)V";
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "setItem", "(L" + mapType.getInternalName() + ";)V", methodSig, null);
        // TODO: Verify that we really want to put @XmlTranient on setItem
        // method
        mv.visitAnnotation("Ljavax/xml/bind/annotation/XmlTransient;", true);
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitFieldInsn(Opcodes.PUTFIELD, qualifiedInternalClassName, "entry", L + mapType.getInternalName() + SEMI_COLON);
        mv.visitInsn(Opcodes.RETURN);
        Label l1 = new Label();
        mv.visitLabel(l1);


        // Replacement?:LocalVariableTypeTableAttribute cvAttr = new
        // LocalVariableTypeTableAttribute();
        // mv.visitAttribute(cvAttr);

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        // Write: public void setItem({collectionType})
        String methodSig = "(L" + collectionType.getInternalName() + "<" + componentTypeInternalName + ">;)V";
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "setItem", "(L" + collectionType.getInternalName() + ";)V", methodSig, null);
        mv.visitAnnotation("Ljavax/xml/bind/annotation/XmlTransient;", true);
        Label l0 = new Label(); // ??
        mv.visitLabel(l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitFieldInsn(Opcodes.PUTFIELD, qualifiedInternalClassName, ITEM, L + collectionType.getInternalName() + SEMI_COLON);
        mv.visitInsn(Opcodes.RETURN);
        Label l1 = new Label(); // ??
        mv.visitLabel(l1);
        mv.visitMaxs(2, 2);
        mv.visitEnd();


        // Write: public {collectionType} getItem()

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        String methodSig = "(L" + mapType.getInternalName() + "<L" + internalKeyName + ";L" + internalValueName + ";>;)V";
        mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "setItem", "(L" + mapType.getInternalName() + ";)V", methodSig, null);
        // TODO: Verify that we really want to put @XmlTranient on setItem
        // method
        mv.visitAnnotation("Ljavax/xml/bind/annotation/XmlTransient;", true);
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitFieldInsn(Opcodes.PUTFIELD, qualifiedInternalClassName, "entry", L + mapType.getInternalName() + SEMI_COLON);
        mv.visitInsn(Opcodes.RETURN);
        Label l1 = new Label();
        mv.visitLabel(l1);


        // Replacement?:LocalVariableTypeTableAttribute cvAttr = new
        // LocalVariableTypeTableAttribute();
        // mv.visitAttribute(cvAttr);

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          // }     
            mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "getItem", "()Ljava/lang/Object;", null, null);
          mv.visitCode();
          mv.visitVarInsn(Opcodes.ALOAD, 0);
          mv.visitFieldInsn(Opcodes.GETFIELD, classNameSeparatedBySlash, "adaptedValue", "Ljava/util/Collection;");
          Label l0 = new Label();
          mv.visitJumpInsn(Opcodes.IFNONNULL, l0);
          mv.visitInsn(Opcodes.ACONST_NULL);
          mv.visitInsn(Opcodes.ARETURN);
          mv.visitLabel(l0);
          mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);

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        methodAttrs1.annotations.add(methodAttrs1ann0);


        SignatureAttribute methodAttrs2 = new SignatureAttribute("(Ljava/util/Map<L" + internalKeyName + ";L" + internalValueName + ";>;)V");
        methodAttrs1.next = methodAttrs2;
        cv = cw.visitMethod(Constants.ACC_PUBLIC, "setItem", "(Ljava/util/Map;)V", null, methodAttrs1);
        Label l0 = new Label();
        cv.visitLabel(l0);
        cv.visitVarInsn(Constants.ALOAD, 0);
        cv.visitVarInsn(Constants.ALOAD, 1);
        cv.visitFieldInsn(Constants.PUTFIELD, qualifiedInternalClassName, "entry", "Ljava/util/Map;");
        cv.visitInsn(Constants.RETURN);
        Label l1 = new Label();
        cv.visitLabel(l1);
        // CODE ATTRIBUTE


        LocalVariableTypeTableAttribute cvAttr = new LocalVariableTypeTableAttribute();
        cv.visitAttribute(cvAttr);

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