bbradson
58 lines
1.8 KiB
C#
58 lines
1.8 KiB
C#
// Copyright (c) 2023 bradson
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at https://mozilla.org/MPL/2.0/.
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using JetBrains.Annotations;
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namespace PerformanceFish;
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[UsedImplicitly(ImplicitUseTargetFlags.WithMembers)]
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public record struct GroupThingPair
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{
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private uint _data;
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public ThingRequestGroup ThingRequestGroup
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{
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get => (ThingRequestGroup)(byte)(_data >> 24); // fewer hash collisions this way than in rightmost bit
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set => _data = (_data & 0x00_FF_FF_FF) | ((uint)value << 24);
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}
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public int ThingIDNumber
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{
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get => (int)(_data & 0x00_FF_FF_FF); // 24 bit, 16.8m MaxValue
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set => _data = (_data & 0xFF_00_00_00) | (uint)(value & 0x00_FF_FF_FF);
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}
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public GroupThingPair(ThingRequestGroup thingRequestGroup, int thingIDNumber)
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=> _data = ((uint)thingRequestGroup << 24) | (0x00_FF_FF_FF & (uint)thingIDNumber);
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public bool Equals(GroupThingPair other) => _data == other._data;
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public override int GetHashCode() => unchecked((int)_data);
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}
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// [UsedImplicitly(ImplicitUseTargetFlags.WithMembers)]
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// public record struct GroupThingPair
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// {
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// private uint _data;
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//
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// public ThingRequestGroup ThingRequestGroup
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// {
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// get => (ThingRequestGroup)(byte)_data;
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// set => _data = (_data & 0xFF_FF_FF_00) | (byte)value;
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// }
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//
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// public int ThingIDNumber
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// {
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// get => (int)(_data >> 8); // 24 bit, 16.8m MaxValue
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// set => _data = (_data & 0xFF) | (uint)(value << 8);
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// }
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//
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// public GroupThingPair(ThingRequestGroup thingRequestGroup, int thingIDNumber)
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// => _data = (uint)thingRequestGroup | ((uint)thingIDNumber << 8);
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//
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// public bool Equals(GroupThingPair other) => _data == other._data;
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//
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// public override int GetHashCode() => Unsafe.As<uint, int>(ref _data);
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// } |