如何缓存 FieldInfo.GetValue()？

Question

Okay so I made a class to take an input script and a property name. It finds the property and then displays it when Display() is called [ The display method is overridden by a child class ]. However, there is one problem that I have with it and that is how do I cache what FieldInfo.GetValue() returns? It would be preferable to have a pointer or something to reuse once the variable containing what I need is found since reflection is costly.

public class PropertyDisplayer : MonoBehaviour
    {
        public string PropertyName;
        public Object TargetObject;

        public object _TargetObject;
        public FieldInfo Property;

        void Start()
        {
            _TargetObject = TargetObject;

            if (!PropertyName.Contains("."))
            {
                Property = _TargetObject.GetType().GetField(PropertyName);
            }
            else
            {
                string[] split = PropertyName.Split('.');

                Property = _TargetObject.GetType().GetField(split[0]);

                for (int i = 1; i != split.Length; i++)
                {
                    _TargetObject = Property.GetValue(_TargetObject);
                    Property = Property.FieldType.GetField(split[i]);
                }
            }
        }

        public virtual void Display()
        {

        }
    }

Answer 1

Use the dynamitey library, it will cache all reflection calls transparently for you and make them near normal call speed. More info here: https://github.com/ekonbenefits/dynamitey

Answer 2

You can store the results of the FieldInfo.GetValue() call in a new member field that is of type "object". (This IS, effectively, a pointer)

Then, in your Display() override, simply cast this member to the appropriate class, in order to access its members.