92 lines
2.6 KiB
C#
92 lines
2.6 KiB
C#
/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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dnSpy is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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namespace dnSpy.Contracts.Hex.Files {
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/// <summary>
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/// Flag info
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/// </summary>
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public readonly struct FlagInfo {
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const ulong EnumNameValue = ulong.MaxValue;
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/// <summary>
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/// Name
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/// </summary>
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public string Name { get; }
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/// <summary>
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/// Mask
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/// </summary>
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public ulong Mask { get; }
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/// <summary>
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/// Value
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/// </summary>
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public ulong Value { get; }
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/// <summary>
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/// true if it only stores the name of the enum and the enum mask. <see cref="Value"/> is not used
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/// and should be ignored.
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/// </summary>
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public bool IsEnumName => (Value & ~Mask) != 0 && Value == EnumNameValue;
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/// <summary>
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/// Creates an instance that only holds the name of the embedded enum value
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/// </summary>
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/// <param name="mask">Enum mask</param>
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/// <param name="name">Name of enum</param>
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/// <returns></returns>
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public static FlagInfo CreateEnumName(ulong mask, string name) => new FlagInfo(mask, name, false);
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FlagInfo(ulong mask, string name, bool dummy) {
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if (mask == 0)
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throw new ArgumentOutOfRangeException(nameof(mask));
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Name = name ?? throw new ArgumentNullException(nameof(name));
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Mask = mask;
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Value = EnumNameValue;
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}
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="bitMask">Bit mask</param>
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/// <param name="name">Name</param>
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public FlagInfo(ulong bitMask, string name)
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: this(bitMask, bitMask, name) {
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}
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="mask">Mask</param>
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/// <param name="value">Value</param>
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/// <param name="name">Name</param>
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public FlagInfo(ulong mask, ulong value, string name) {
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if (mask == 0)
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throw new ArgumentOutOfRangeException(nameof(mask));
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if ((value & ~mask) != 0)
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throw new ArgumentOutOfRangeException(nameof(value));
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Name = name ?? throw new ArgumentNullException(nameof(name));
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Mask = mask;
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Value = value;
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}
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}
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}
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