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}).

          }


          MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);


          mv.visitVarInsn(Opcodes.ALOAD, 0);
          mv.visitTypeInsn(Opcodes.NEW, "javax/xml/namespace/QName");
          mv.visitInsn(Opcodes.DUP);
          mv.visitLdcInsn(theQName.getNamespaceURI());
          mv.visitLdcInsn(theQName.getLocalPart());
          mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "javax/xml/namespace/QName", "<init>", "(Ljava/lang/String;Ljava/lang/String;)V");
          mv.visitLdcInsn(Type.getType(fieldType));

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

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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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            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('.', '/'));


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

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                    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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        Label l0 = new Label();
        cv_init_VH.visitJumpInsn(IFNONNULL, l0);


        // _persistence_attribute_vh = new ValueHolder(this.attribute);
        cv_init_VH.visitVarInsn(ALOAD, 0);
        cv_init_VH.visitTypeInsn(NEW, VH_SHORT_SIGNATURE);
        cv_init_VH.visitInsn(DUP);
        if (attributeDetails.hasField()) {
            cv_init_VH.visitVarInsn(ALOAD, 0);
            cv_init_VH.visitFieldInsn(GETFIELD, className, attribute, attributeDetails.getReferenceClassType().getDescriptor());
            cv_init_VH.visitMethodInsn(INVOKESPECIAL, VH_SHORT_SIGNATURE, "<init>", "(Ljava/lang/Object;)V");

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