PdfRpt.Core.Helper.FastReflection.createGetterFieldDelegate C# (CSharp) Method

        static Func<object, object> createGetterFieldDelegate(Type type, FieldInfo fieldInfo)
        {
            var dynamicGet = new DynamicMethod("_", typeof(object), new[] { typeof(object) }, type);

            var il = dynamicGet.GetILGenerator();

            if (!type.IsClass) // structs
            {
                var lv = il.DeclareLocal(type);
                il.Emit(OpCodes.Ldarg_0);
                il.Emit(OpCodes.Unbox_Any, type);
                il.Emit(OpCodes.Stloc_0);
                il.Emit(OpCodes.Ldloca_S, lv);
                il.Emit(OpCodes.Ldfld, fieldInfo);
                if (fieldInfo.FieldType.IsValueType)
                    il.Emit(OpCodes.Box, fieldInfo.FieldType);
            }
            else
            {
                il.Emit(OpCodes.Ldarg_0);
                il.Emit(OpCodes.Ldfld, fieldInfo);
                if (fieldInfo.FieldType.IsValueType)
                    il.Emit(OpCodes.Box, fieldInfo.FieldType);
            }

            il.Emit(OpCodes.Ret);

            return (Func<object, object>)dynamicGet.CreateDelegate(typeof(Func<object, object>));
        }