////
//#pragma warning disable
//#nullable enable annotations
//
//// Licensed to the .NET Foundation under one or more agreements.
//// The .NET Foundation licenses this file to you under the MIT license.
//
//namespace System
//{
// /// Represent a range has start and end indexes.
// ///
// /// Range is used by the C# compiler to support the range syntax.
// ///
// /// int[] someArray = new int[5] { 1, 2, 3, 4, 5 };
// /// int[] subArray1 = someArray[0..2]; // { 1, 2 }
// /// int[] subArray2 = someArray[1..^0]; // { 2, 3, 4, 5 }
// ///
// ///
// [global::System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
// public readonly struct Range : global::System.IEquatable
// {
// /// Represent the inclusive start index of the Range.
// public global::System.Index Start { get; }
//
// /// Represent the exclusive end index of the Range.
// public global::System.Index End { get; }
//
// /// Construct a Range object using the start and end indexes.
// /// Represent the inclusive start index of the range.
// /// Represent the exclusive end index of the range.
// public Range(global::System.Index start, global::System.Index end)
// {
// Start = start;
// End = end;
// }
//
// /// Indicates whether the current Range object is equal to another object of the same type.
// /// An object to compare with this object
// public override bool Equals([global::System.Diagnostics.CodeAnalysis.NotNullWhen(true)] object? value) =>
// value is global::System.Range r &&
// r.Start.Equals(Start) &&
// r.End.Equals(End);
//
// /// Indicates whether the current Range object is equal to another Range object.
// /// An object to compare with this object
// public bool Equals(global::System.Range other) => other.Start.Equals(Start) && other.End.Equals(End);
//
// /// Returns the hash code for this instance.
// public override int GetHashCode()
// {
// return global::System.Range.HashHelpers.Combine(Start.GetHashCode(), End.GetHashCode());
// }
//
// /// Converts the value of the current Range object to its equivalent string representation.
// public override string ToString()
// {
// return Start.ToString() + ".." + End.ToString();
// }
//
// /// Create a Range object starting from start index to the end of the collection.
// public static global::System.Range StartAt(global::System.Index start) => new global::System.Range(start, global::System.Index.End);
//
// /// Create a Range object starting from first element in the collection to the end Index.
// public static global::System.Range EndAt(global::System.Index end) => new global::System.Range(global::System.Index.Start, end);
//
// /// Create a Range object starting from first element to the end.
// public static global::System.Range All => new global::System.Range(global::System.Index.Start, global::System.Index.End);
//
// /// Calculate the start offset and length of range object using a collection length.
// /// The length of the collection that the range will be used with. length has to be a positive value.
// ///
// /// For performance reason, we don't validate the input length parameter against negative values.
// /// It is expected Range will be used with collections which always have non negative length/count.
// /// We validate the range is inside the length scope though.
// ///
// [global::System.Runtime.CompilerServices.MethodImpl(global::System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
// public (int Offset, int Length) GetOffsetAndLength(int length)
// {
// int start;
// global::System.Index startIndex = Start;
// if (startIndex.IsFromEnd)
// start = length - startIndex.Value;
// else
// start = startIndex.Value;
//
// int end;
// global::System.Index endIndex = End;
// if (endIndex.IsFromEnd)
// end = length - endIndex.Value;
// else
// end = endIndex.Value;
//
// if ((uint)end > (uint)length || (uint)start > (uint)end)
// {
// global::System.Range.ThrowHelper.ThrowArgumentOutOfRangeException();
// }
//
// return (start, end - start);
// }
//
// private static class HashHelpers
// {
// public static int Combine(int h1, int h2)
// {
// uint rol5 = ((uint)h1 << 5) | ((uint)h1 >> 27);
// return ((int)rol5 + h1) ^ h2;
// }
// }
//
// private static class ThrowHelper
// {
// [global::System.Diagnostics.CodeAnalysis.DoesNotReturn]
// public static void ThrowArgumentOutOfRangeException()
// {
// throw new global::System.ArgumentOutOfRangeException("length");
// }
// }
// }
//}