119 lines
4.1 KiB
C#
119 lines
4.1 KiB
C#
//-----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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// file="Token"
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// Project: StgSharp
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// AuthorGroup: Nitload
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// Copyright (c) Nitload. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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// -----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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using System;
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using System.Collections.Generic;
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using System.Diagnostics.CodeAnalysis;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace StgSharp.RegularAnalysis.Abstraction
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{
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public readonly struct Token<TLabel> where TLabel : unmanaged
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{
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private static readonly Token<TLabel> EmptyToken = new Token<TLabel>();
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public readonly int Column;
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public readonly int Line;
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public readonly string Value;
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public readonly TLabel Flag;
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public Token()
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{
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Column = 0;
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Line = 0;
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Value = string.Empty;
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Flag = default;
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}
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public Token(
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string chars,
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int lineNumber,
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int columnNumber,
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TLabel flag
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)
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{
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Value = chars;
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Line = lineNumber;
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Column = columnNumber;
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Flag = flag;
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}
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public static Token<TLabel> Empty => EmptyToken;
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public override bool Equals(
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[NotNullWhen(true)] object? obj
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)
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{
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return base.Equals(obj);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public Token<TLabel> ReLocate(
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int line,
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int column
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)
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{
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return new Token<TLabel>(Value, line, column, Flag);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public Token<TNewLabel> Remark<TNewLabel>(
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TNewLabel label
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) where TNewLabel : unmanaged
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{
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return new Token<TNewLabel>(Value, Line, Column, label);
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}
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public static bool operator !=(
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Token<TLabel> left,
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Token<TLabel> right
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)
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{
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return !left.Value.SequenceEqual(right.Value) ||
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left.Line != right.Line ||
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left.Column != right.Column ||
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!left.Flag.Equals(right.Flag);
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}
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public static bool operator ==(
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Token<TLabel> left,
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Token<TLabel> right
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)
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{
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return left.Value.SequenceEqual(right.Value) &&
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left.Line == right.Line &&
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left.Column == right.Column &&
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left.Flag.Equals(right.Flag);
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}
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}
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}
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