Examples of org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitMethodInsn()

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

Class org.eclipse.persistence.internal.libraries.asm.MethodVisitor

Examples of org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitMethodInsn()

org.eclipse.persistence.internal.libraries.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. This opcode 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 (classDetails.shouldWeaveFetchGroups()) {
            cv_get.visitVarInsn(ALOAD, 0);
            cv_get.visitLdcInsn(attribute);
            // _persistence_checkFetched("variableName");
            cv_get.visitMethodInsn(INVOKEVIRTUAL, classDetails.getClassName(), "_persistence_checkFetched", "(Ljava/lang/String;)V");
        }


        if (attributeDetails.weaveValueHolders()) {
            // _persistence_initialize_variableName_vh();
            cv_get.visitVarInsn(ALOAD, 0);

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        }


        if (attributeDetails.weaveValueHolders()) {
            // _persistence_initialize_variableName_vh();
            cv_get.visitVarInsn(ALOAD, 0);
            cv_get.visitMethodInsn(INVOKEVIRTUAL, classDetails.getClassName(), "_persistence_initialize_" + attributeDetails.getAttributeName() + PERSISTENCE_FIELDNAME_POSTFIX, "()V");


            // _persistenc_variableName_vh.getValue();
            cv_get.visitVarInsn(ALOAD, 0);
            cv_get.visitVarInsn(ALOAD, 0);
            cv_get.visitFieldInsn(GETFIELD, classDetails.getClassName(), PERSISTENCE_FIELDNAME_PREFIX + attribute + PERSISTENCE_FIELDNAME_POSTFIX, ClassWeaver.VHI_SIGNATURE);

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            // _persistenc_variableName_vh.getValue();
            cv_get.visitVarInsn(ALOAD, 0);
            cv_get.visitVarInsn(ALOAD, 0);
            cv_get.visitFieldInsn(GETFIELD, classDetails.getClassName(), PERSISTENCE_FIELDNAME_PREFIX + attribute + PERSISTENCE_FIELDNAME_POSTFIX, ClassWeaver.VHI_SIGNATURE);
            cv_get.visitMethodInsn(INVOKEINTERFACE, ClassWeaver.VHI_SHORT_SIGNATURE, "getValue", "()Ljava/lang/Object;");


            // Add the cast:
            // (<VariableClass>)_persistenc_variableName_vh.getValue()
            cv_get.visitTypeInsn(CHECKCAST, attributeDetails.getReferenceClassName().replace('.', '/'));

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        // if there is a weaved superclass, it will implement
        // _persistence_post_clone. Call that method
        // super._persistence_post_clone()
        if (classDetails.getSuperClassDetails() != null && classDetails.getSuperClassDetails().shouldWeaveInternal()) {
            cv_clone.visitVarInsn(ALOAD, 0);
            cv_clone.visitMethodInsn(INVOKESPECIAL, classDetails.getSuperClassName(), "_persistence_post_clone", "()Ljava/lang/Object;");
        }


        if (classDetails.shouldWeaveValueHolders()) {
            for (Iterator iterator = classDetails.getAttributesMap().values().iterator(); iterator.hasNext();) {
                AttributeDetails attributeDetails = (AttributeDetails) iterator.next();

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                    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;");
                    cv_clone.visitTypeInsn(CHECKCAST, ClassWeaver.VHI_SHORT_SIGNATURE);
                    cv_clone.visitFieldInsn(PUTFIELD, classDetails.getClassName(), PERSISTENCE_FIELDNAME_PREFIX + attributeDetails.getAttributeName() + PERSISTENCE_FIELDNAME_POSTFIX, ClassWeaver.VHI_SIGNATURE);
                    cv_clone.visitLabel(label);
                }
            }

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        // create the _persistence_shallow_clone() method
        MethodVisitor cv_clone = cv.visitMethod(ACC_PUBLIC, "_persistence_shallow_clone", "()Ljava/lang/Object;", null, null);


        // return super.clone();
        cv_clone.visitVarInsn(ALOAD, 0);
        cv_clone.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "clone", "()Ljava/lang/Object;");


        cv_clone.visitInsn(ARETURN);
        cv_clone.visitMaxs(0, 0);
    }

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        // return new ClassType(factory);
        cv_new.visitTypeInsn(NEW, classDetails.getClassName());
        cv_new.visitInsn(DUP);
        if (!classDetails.canWeaveConstructorOptimization()) {
            cv_new.visitMethodInsn(INVOKESPECIAL, classDetails.getClassName(), "<init>", "()V");
            cv_new.visitInsn(ARETURN);
            cv_new.visitMaxs(0, 0);
            return;
        } else {
            cv_new.visitVarInsn(ALOAD, 1);

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            cv_new.visitInsn(ARETURN);
            cv_new.visitMaxs(0, 0);
            return;
        } else {
            cv_new.visitVarInsn(ALOAD, 1);
            cv_new.visitMethodInsn(INVOKESPECIAL, classDetails.getClassName(), "<init>", "(" + PERSISTENCE_OBJECT_SIGNATURE + ")V");
        }
        cv_new.visitInsn(ARETURN);
        cv_new.visitMaxs(0, 0);


        // create the ClassType() method

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        MethodVisitor cv_constructor = cv.visitMethod(ACC_PUBLIC, "<init>", "(" + PERSISTENCE_OBJECT_SIGNATURE + ")V", null, null);


        cv_constructor.visitVarInsn(ALOAD, 0);
        if (classDetails.getSuperClassDetails() == null) {
            // super();
            cv_constructor.visitMethodInsn(INVOKESPECIAL, classDetails.getSuperClassName(), "<init>", "()V");
        } else {
            // super(factory);
            cv_constructor.visitVarInsn(ALOAD, 1);
            cv_constructor.visitMethodInsn(INVOKESPECIAL, classDetails.getSuperClassName(), "<init>", "(" + PERSISTENCE_OBJECT_SIGNATURE + ")V");
        }

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            // super();
            cv_constructor.visitMethodInsn(INVOKESPECIAL, classDetails.getSuperClassName(), "<init>", "()V");
        } else {
            // super(factory);
            cv_constructor.visitVarInsn(ALOAD, 1);
            cv_constructor.visitMethodInsn(INVOKESPECIAL, classDetails.getSuperClassName(), "<init>", "(" + PERSISTENCE_OBJECT_SIGNATURE + ")V");
        }
        cv_constructor.visitInsn(RETURN);
        cv_constructor.visitMaxs(0, 0);
    }

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