MapOut.cs

#region Copyright (c) 2018 Atif Aziz. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#endregion

// ReSharper disable once PartialTypeWithSinglePart

static partial class Extensions
{
    public static bool MapOut<T>(this T? nullable, out T value) where T : struct
    {
        if (!nullable.HasValue)
        {
            value = default;
            return false;
        }

        value = nullable.Value;
        return true;
    }

    public static bool MapOut<T1, T2>(this (T1, T2)? nullable, out T1 v1, out T2 v2)
    {
        if (!nullable.MapOut(out var couple))
        {
            v1 = default;
            v2 = default;
            return false;
        }

        (v1, v2) = couple;
        return true;
    }
}