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.NET-Community-Toolkit/CommunityToolkit.HighPerformance/Extensions/HashCodeExtensions.cs
2021-11-02 11:35:50 +01:00

31 lines
1.1 KiB
C#

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.Runtime.CompilerServices;
using CommunityToolkit.HighPerformance.Helpers;
namespace CommunityToolkit.HighPerformance;
/// <summary>
/// Helpers for working with the <see cref="HashCode"/> type.
/// </summary>
public static class HashCodeExtensions
{
/// <summary>
/// Adds a sequence of <typeparamref name="T"/> values to the hash code.
/// </summary>
/// <typeparam name="T">The type of elements in the input <see cref="ReadOnlySpan{T}"/> instance.</typeparam>
/// <param name="hashCode">The input <see cref="HashCode"/> instance.</param>
/// <param name="span">The input <see cref="ReadOnlySpan{T}"/> instance.</param>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void Add<T>(ref this HashCode hashCode, ReadOnlySpan<T> span)
where T : notnull
{
int hash = HashCode<T>.CombineValues(span);
hashCode.Add(hash);
}
}