private void createMarshallMethod()

in lightning-core/src/main/java/org/apache/directmemory/lightning/internal/generator/BytecodeMarshallerGenerator.java [302:365]
36 lines of code
6 McCabe index (conditional complexity)

    private void createMarshallMethod( ClassWriter cw, String className, Class<?> type,
                                       SerializationStrategy serializationStrategy,
                                       List<PropertyDescriptor> propertyDescriptors )
    {

        MethodVisitor mv =
            cw.visitMethod( ACC_PUBLIC, "marshall", MARSHALLER_MARSHALL_SIGNATURE, null, MARSHALLER_EXCEPTIONS );

        // If element type is not reference capable or SerializationStrategy is
        // not SizeOptimized just prevent generation of code
        if ( serializationStrategy == SerializationStrategy.SizeOptimized && ClassUtil.isReferenceCapable( type ) )
        {
            // Load this to method stack
            mv.visitVarInsn( ALOAD, 0 );

            // Load value to method stack
            mv.visitVarInsn( ALOAD, 1 );

            // Load type to method stack
            mv.visitVarInsn( ALOAD, 2 );

            // Load dataOutput to method stack
            mv.visitVarInsn( ALOAD, 3 );

            // Load serializationContext to method stack
            mv.visitVarInsn( ALOAD, 4 );

            // Call super.isAlreadyMarshalled(...);
            mv.visitMethodInsn( INVOKEVIRTUAL, SUPER_CLASS_INTERNAL_TYPE, "isAlreadyMarshalled",
                                MARSHALLER_IS_ALREADY_MARSHALLED_SIGNATURE );

            // Label if value is not yet marshalled
            Label notYetMarshalled = new Label();

            // Test if already marshalled
            mv.visitJumpInsn( IFEQ, notYetMarshalled );

            // If marshalled - just return
            mv.visitInsn( RETURN );

            // Visit label - if not yet marshalled - marshall it
            mv.visitLabel( notYetMarshalled );
        }

        for ( PropertyDescriptor propertyDescriptor : propertyDescriptors )
        {
            if ( propertyDescriptor.getType().isArray()
                && !propertyDescriptor.getType().getComponentType().isPrimitive() )
            {
                visitObjectArrayPropertyAccessorRead( mv, className, propertyDescriptor );
            }
            else
            {
                visitValuePropertyAccessorRead( mv, className, propertyDescriptor );
            }
        }

        // Add Return instruction
        mv.visitInsn( RETURN );

        // End visiting
        mv.visitMaxs( 9, 9 );
        mv.visitEnd();
    }