Enum.TryFormat Benchmarks

EnumTryFormatBenchmarks.cs

// 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 BenchmarkDotNet.Attributes;
using MicroBenchmarks;

namespace System.Tests
{
    [MemoryDiagnoser]
    [BenchmarkCategory(Categories.Libraries)]
    public class Perf_Enum
    {
        public enum Colors
        {
            Red = 0x1,
            Orange = 0x2,
            Yellow = 0x4,
            Green = 0x8,
            Blue = 0x10
        }

        [Benchmark]
        public string FormatG()
        {
            return Enum.Format(typeof(Colors), Colors.Green, "G");
        }

        [Benchmark]
        public void TryFormatG()
        {
            Span<char> destination = stackalloc char[5];
            Enum.TryFormat(Colors.Green, destination, out _, "G");
        }

        [Benchmark]
        public string FormatD()
        {
            return Enum.Format(typeof(Colors), Colors.Green, "D");
        }

        [Benchmark]
        public void TryFormatD()
        {
            Span<char> destination = stackalloc char[5];
            Enum.TryFormat(Colors.Green, destination, out _, "D");
        }

        [Benchmark]
        public string FormatX()
        {
            return Enum.Format(typeof(Colors), Colors.Green, "X");
        }

        [Benchmark]
        public void TryFormatX()
        {
            Span<char> destination = stackalloc char[5];
            Enum.TryFormat(Colors.Green, destination, out _, "X");
        }

        [Benchmark]
        public string FormatF()
        {
            return Enum.Format(typeof(Colors), Colors.Green, "F");
        }

        [Benchmark]
        public void TryFormatF()
        {
            Span<char> destination = stackalloc char[5];
            Enum.TryFormat(Colors.Green, destination, out _, "F");
        }
    }
}