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

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

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

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

org.eclipse.persistence.internal.libraries.asm.MethodVisitor.visitTypeInsn()
Visits a type instruction. A type instruction is an instruction that takes the internal name of a class as parameter. @param opcode the opcode of the type instruction to be visited. This opcode is either NEW, ANEWARRAY, CHECKCAST or INSTANCEOF. @param type the operand of the instruction to be visited. This operand must be the internal name of an object or array class (see {@link Type#getInternalName() getInternalName}).

                    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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    public void addPersistenceNew(ClassDetails classDetails) {
        // create the _persistence_new() method
        MethodVisitor cv_new = cv.visitMethod(ACC_PUBLIC, "_persistence_new", "(" + PERSISTENCE_OBJECT_SIGNATURE + ")Ljava/lang/Object;", null, null);


        // 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);

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        cv_get_VH.visitVarInsn(ALOAD, 0);


        // EntityC object = (EntityC)getFoo();
        if (attributeDetails.getGetterMethodName() != null) {
            cv_get_VH.visitMethodInsn(INVOKEVIRTUAL, classDetails.getClassName(), attributeDetails.getGetterMethodName(), "()L" + attributeDetails.getReferenceClassName().replace('.', '/') + ";");
            cv_get_VH.visitTypeInsn(CHECKCAST, attributeDetails.getReferenceClassName().replace('.', '/'));
        } else {
            cv_get_VH.visitMethodInsn(INVOKEVIRTUAL, classDetails.getClassName(), PERSISTENCE_GET + attributeDetails.attributeName, "()L" + attributeDetails.getReferenceClassName().replace('.', '/') + ";");
        }
        cv_get_VH.visitVarInsn(ASTORE, 1);

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        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();

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            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();

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


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


                // add the assignment: this.variableName =
                // (<VariableClass>)_persistenc_variableName_vh.getValue();
                cv_set.visitFieldInsn(PUTFIELD, classDetails.getClassName(), attribute, attributeDetails.getReferenceClassType().getDescriptor());
            }

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            // if the attribute is a primitive, wrap it
            // e.g. if it is an integer: new Integer(attribute)
            // This is the first part of the wrapping
            String wrapper = ClassWeaver.wrapperFor(attributeDetails.getReferenceClassType().getSort());
            if (wrapper != null) {
                cv_set.visitTypeInsn(NEW, wrapper);
                cv_set.visitInsn(DUP);
            }


            // load the method argument
            cv_set.visitVarInsn(ALOAD, 0);

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                // e.g. new Integer(variableName)
                cv_set.visitMethodInsn(INVOKESPECIAL, wrapper, "<init>", "(" + attributeDetails.getReferenceClassType().getDescriptor() + ")V");


                // wrap the method argument
                // e.g. new Integer(argument)
                cv_set.visitTypeInsn(NEW, wrapper);
                cv_set.visitInsn(DUP);
                cv_set.visitVarInsn(opcode, 1);
                cv_set.visitMethodInsn(INVOKESPECIAL, wrapper, "<init>", "(" + attributeDetails.getReferenceClassType().getDescriptor() + ")V");
            } else {
                // if we are not wrapping the argument, just load it

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


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


                // add the assignment: this.variableName =
                // (<VariableClass>)_persistenc_variableName_vh.getValue();
                cv_set.visitFieldInsn(PUTFIELD, classDetails.getClassName(), attribute, attributeDetails.getReferenceClassType().getDescriptor());
            }

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            mv.visitEnd();
            
            mv = cw.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_BRIDGE + Opcodes.ACC_SYNTHETIC, "setKey", "(Ljava/lang/Object;)V", null, null);
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitVarInsn(Opcodes.ALOAD, 1);
            mv.visitTypeInsn(Opcodes.CHECKCAST, qualifiedInternalKeyClassName);
            mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, qualifiedInternalClassName, "setKey", "(L"+qualifiedInternalKeyClassName+";)V");
            mv.visitInsn(Opcodes.RETURN);
            mv.visitMaxs(2, 2);
            mv.visitEnd();
        }

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