IKVM.Reflection.Type.GetGenericTypeDefinition C# (CSharp) Method

        public virtual Type GetGenericTypeDefinition()
        {
            throw new InvalidOperationException();
        }

        public static bool IsDictionaryOrListInterface(RuntimeTypeModel model, Type type, out Type defaultType)
        {
            defaultType = null;
            if (!Helpers.IsInterface(type))
            {
                return(false);
            }
            Type[] genArgs;
            var    itemType = TypeModel.GetListItemType(model, type);

#if WINRT
            TypeInfo typeInfo = type.GetTypeInfo();
            if (typeInfo.IsGenericType && type.GetGenericTypeDefinition() == typeof(System.Collections.Generic.IDictionary <,>) &&
                itemType == typeof(System.Collections.Generic.KeyValuePair <,>).MakeGenericType(genArgs = typeInfo.GenericTypeArguments))
#else
            if (type.IsGenericType && type.GetGenericTypeDefinition() == model.MapType(typeof(System.Collections.Generic.IDictionary <,>)) &&
                itemType == model.MapType(typeof(System.Collections.Generic.KeyValuePair <,>)).MakeGenericType(genArgs = type.GetGenericArguments()))
#endif
            {
                defaultType = model.MapType(typeof(System.Collections.Generic.Dictionary <,>)).MakeGenericType(genArgs);
                return(true);
            }
#if WINRT
            if (typeInfo.IsGenericType && type.GetGenericTypeDefinition() == typeof(System.Collections.Generic.IList <>).MakeGenericType(genArgs = typeInfo.GenericTypeArguments))
#else
            if (type.IsGenericType && type.GetGenericTypeDefinition() == model.MapType(typeof(System.Collections.Generic.IList <>)).MakeGenericType(genArgs = type.GetGenericArguments()))
#endif
            {
                defaultType = model.MapType(typeof(System.Collections.Generic.List <>)).MakeGenericType(genArgs);
                return(true);
            }
            return(false);
        }