156 lines
7.1 KiB
C#
156 lines
7.1 KiB
C#
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//// <auto-generated/>
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//#pragma warning disable
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//#nullable enable annotations
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//
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//// Licensed to the .NET Foundation under one or more agreements.
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//// The .NET Foundation licenses this file to you under the MIT license.
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//
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//namespace System
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//{
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// /// <summary>Represent a type can be used to index a collection either from the start or the end.</summary>
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// /// <remarks>
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// /// Index is used by the C# compiler to support the new index syntax
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// /// <code>
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// /// int[] someArray = new int[5] { 1, 2, 3, 4, 5 } ;
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// /// int lastElement = someArray[^1]; // lastElement = 5
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// /// </code>
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// /// </remarks>
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// [global::System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
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// public readonly struct Index : global::System.IEquatable<global::System.Index>
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// {
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// private readonly int _value;
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//
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// /// <summary>Construct an Index using a value and indicating if the index is from the start or from the end.</summary>
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// /// <param name="value">The index value. it has to be zero or positive number.</param>
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// /// <param name="fromEnd">Indicating if the index is from the start or from the end.</param>
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// /// <remarks>
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// /// If the Index constructed from the end, index value 1 means pointing at the last element and index value 0 means pointing at beyond last element.
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// /// </remarks>
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// [global::System.Runtime.CompilerServices.MethodImpl(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
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// public Index(int value, bool fromEnd = false)
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// {
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// if (value < 0)
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// {
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// global::System.Index.ThrowHelper.ThrowValueArgumentOutOfRange_NeedNonNegNumException();
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// }
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//
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// if (fromEnd)
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// _value = ~value;
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// else
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// _value = value;
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// }
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//
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// // The following private constructors mainly created for perf reason to avoid the checks
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// private Index(int value)
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// {
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// _value = value;
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// }
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//
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// /// <summary>Create an Index pointing at first element.</summary>
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// public static global::System.Index Start => new global::System.Index(0);
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//
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// /// <summary>Create an Index pointing at beyond last element.</summary>
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// public static global::System.Index End => new global::System.Index(~0);
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//
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// /// <summary>Create an Index from the start at the position indicated by the value.</summary>
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// /// <param name="value">The index value from the start.</param>
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// [global::System.Runtime.CompilerServices.MethodImpl(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
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// public static global::System.Index FromStart(int value)
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// {
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// if (value < 0)
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// {
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// global::System.Index.ThrowHelper.ThrowValueArgumentOutOfRange_NeedNonNegNumException();
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// }
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//
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// return new global::System.Index(value);
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// }
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//
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// /// <summary>Create an Index from the end at the position indicated by the value.</summary>
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// /// <param name="value">The index value from the end.</param>
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// [global::System.Runtime.CompilerServices.MethodImpl(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
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// public static global::System.Index FromEnd(int value)
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// {
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// if (value < 0)
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// {
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// global::System.Index.ThrowHelper.ThrowValueArgumentOutOfRange_NeedNonNegNumException();
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// }
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//
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// return new global::System.Index(~value);
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// }
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//
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// /// <summary>Returns the index value.</summary>
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// public int Value
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// {
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// get
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// {
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// if (_value < 0)
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// return ~_value;
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// else
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// return _value;
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// }
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// }
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//
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// /// <summary>Indicates whether the index is from the start or the end.</summary>
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// public bool IsFromEnd => _value < 0;
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//
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// /// <summary>Calculate the offset from the start using the giving collection length.</summary>
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// /// <param name="length">The length of the collection that the Index will be used with. length has to be a positive value</param>
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// /// <remarks>
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// /// For performance reason, we don't validate the input length parameter and the returned offset value against negative values.
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// /// we don't validate either the returned offset is greater than the input length.
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// /// It is expected Index will be used with collections which always have non negative length/count. If the returned offset is negative and
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// /// then used to index a collection will get out of range exception which will be same affect as the validation.
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// /// </remarks>
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// [global::System.Runtime.CompilerServices.MethodImpl(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
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// public int GetOffset(int length)
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// {
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// int offset = _value;
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// if (IsFromEnd)
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// {
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// // offset = length - (~value)
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// // offset = length + (~(~value) + 1)
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// // offset = length + value + 1
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//
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// offset += length + 1;
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// }
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// return offset;
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// }
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//
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// /// <summary>Indicates whether the current Index object is equal to another object of the same type.</summary>
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// /// <param name="value">An object to compare with this object</param>
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// public override bool Equals([global::System.Diagnostics.CodeAnalysis.NotNullWhen(true)] object? value) => value is global::System.Index && _value == ((global::System.Index)value)._value;
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//
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// /// <summary>Indicates whether the current Index object is equal to another Index object.</summary>
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// /// <param name="other">An object to compare with this object</param>
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// public bool Equals(global::System.Index other) => _value == other._value;
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//
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// /// <summary>Returns the hash code for this instance.</summary>
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// public override int GetHashCode() => _value;
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//
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// /// <summary>Converts integer number to an Index.</summary>
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// public static implicit operator global::System.Index(int value) => FromStart(value);
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//
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// /// <summary>Converts the value of the current Index object to its equivalent string representation.</summary>
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// public override string ToString()
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// {
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// if (IsFromEnd)
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// return ToStringFromEnd();
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//
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// return ((uint)Value).ToString();
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// }
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//
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// private string ToStringFromEnd()
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// {
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// return '^' + Value.ToString();
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// }
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//
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// private static class ThrowHelper
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// {
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// [global::System.Diagnostics.CodeAnalysis.DoesNotReturn]
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// public static void ThrowValueArgumentOutOfRange_NeedNonNegNumException()
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// {
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// throw new global::System.ArgumentOutOfRangeException("value", "Non-negative number required.");
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// }
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// }
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// }
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//}
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