DropinMultiplayer/Reflections.cs at master · Morris1927/DropinMultiplayer · GitHub

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using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;

namespace DropInMultiplayer {

    //Code written by Wildbook

    public static class Reflection {
        private static readonly BindingFlags _defaultFlags
            = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.FlattenHierarchy;

        #region Field

        public static TReturn GetFieldValue<TReturn>(this object instance, string fieldName) {
            return (TReturn)instance.GetType()
                .GetField(fieldName, _defaultFlags | BindingFlags.Instance)
                    .GetValue(instance);
        }

        public static TReturn GetFieldValue<TClass, TReturn>(string fieldName) {
            return (TReturn)typeof(TClass)
                .GetField(fieldName, _defaultFlags | BindingFlags.Static)
                    .GetValue(null);
        }

        public static void SetFieldValue(this object instance, string fieldName, object value) {
            instance.GetType()
                .GetField(fieldName, _defaultFlags | BindingFlags.Instance)
                    .SetValue(instance, value);
        }

        public static void SetFieldValue<TClass>(string fieldName, object value) {
            typeof(TClass)
                .GetField(fieldName, _defaultFlags | BindingFlags.Static)
                    .SetValue(null, value);
        }

        #endregion

        #region Property

        public static TReturn GetProperyValue<TReturn>(this object instance, string propName) {
            return (TReturn)instance.GetType()
                .GetProperty(propName, _defaultFlags | BindingFlags.Instance)
                    .GetValue(instance);
        }

        public static TReturn GetProperyValue<TClass, TReturn>(string propName) {
            return (TReturn)typeof(TClass)
                .GetProperty(propName, _defaultFlags | BindingFlags.Static)
                    .GetValue(null);
        }

        public static void SetProperyValue(this object instance, string propName, object value) {
            instance.GetType()
                .GetProperty(propName, _defaultFlags | BindingFlags.Instance)
                    .SetValue(instance, value);
        }

        public static void SetProperyValue<TClass>(string propName, object value) {
            typeof(TClass).GetProperty(propName, _defaultFlags | BindingFlags.Static)
                .SetValue(null, value);
        }

        #endregion

        #region Method

        public static TReturn InvokeMethod<TReturn>(this object instance, string methodName, params object[] methodParams) {
            return (TReturn)instance.GetType()
                .GetMethod(methodName, _defaultFlags | BindingFlags.Instance)
                    .Invoke(instance, methodParams);
        }

        public static TReturn InvokeMethod<TClass, TReturn>(string methodName, params object[] methodParams) {
            return (TReturn)typeof(TClass)
                .GetMethod(methodName, _defaultFlags | BindingFlags.Static)
                    .Invoke(null, methodParams);
        }

        public static void InvokeMethod(this object instance, string methodName, params object[] methodParams) {
            instance.InvokeMethod<object>(methodName, methodParams);
        }

        public static void InvokeMethod<TClass>(string methodName, params object[] methodParams) {
            InvokeMethod<TClass, object>(methodName, methodParams);
        }

        #endregion

        #region Class

        public static Type GetNestedType<TParent>(string name) {
            return typeof(TParent).GetNestedType(name, BindingFlags.Public | BindingFlags.NonPublic);
        }

        public static object Instantiate(this Type type) {
            return Activator.CreateInstance(type, true);
        }

        public static object InstantiateGeneric<TClass>(this Type typeArgument) {
            return typeof(TClass).MakeGenericType(typeArgument).Instantiate();
        }

        public static object InstantiateGeneric<TClass>(this Type[] typeArgument) {
            return typeof(TClass).MakeGenericType(typeArgument).Instantiate();
        }

        public static IList InstantiateList(this Type type) {
            return (IList)typeof(List<>).MakeGenericType(type).Instantiate();
        }

        #endregion
    }
}