52 lines
1.4 KiB
C#
52 lines
1.4 KiB
C#
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//======= Copyright (c) Valve Corporation, All rights reserved. ===============
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using System;
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using System.Collections.Generic;
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using System.Linq.Expressions;
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namespace Valve.VR
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{
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struct SteamVREnumEqualityComparer<TEnum> : IEqualityComparer<TEnum> where TEnum : struct
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{
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static class BoxAvoidance
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{
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static readonly Func<TEnum, int> _wrapper;
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public static int ToInt(TEnum enu)
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{
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return _wrapper(enu);
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}
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static BoxAvoidance()
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{
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var p = Expression.Parameter(typeof(TEnum), null);
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var c = Expression.ConvertChecked(p, typeof(int));
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_wrapper = Expression.Lambda<Func<TEnum, int>>(c, p).Compile();
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}
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}
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public bool Equals(TEnum firstEnum, TEnum secondEnum)
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{
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return BoxAvoidance.ToInt(firstEnum) == BoxAvoidance.ToInt(secondEnum);
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}
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public int GetHashCode(TEnum firstEnum)
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{
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return BoxAvoidance.ToInt(firstEnum);
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}
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}
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public struct SteamVR_Input_Sources_Comparer : IEqualityComparer<SteamVR_Input_Sources>
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{
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public bool Equals(SteamVR_Input_Sources x, SteamVR_Input_Sources y)
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{
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return x == y;
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}
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public int GetHashCode(SteamVR_Input_Sources obj)
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{
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return (int)obj;
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}
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}
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}
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