IndexField.cs

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using System.Diagnostics.CodeAnalysis;
 
namespace System.Data;
 
internal readonly struct IndexField
{
    public readonly DataColumn Column;
 
    public readonly bool IsDescending;
 
    internal IndexField(DataColumn column, bool isDescending)
    {
        Column = column;
        IsDescending = isDescending;
    }
 
    public static bool operator ==(IndexField if1, IndexField if2)
    {
        if (if1.Column == if2.Column)
        {
            return if1.IsDescending == if2.IsDescending;
        }
        return false;
    }
 
    public override bool Equals([NotNullWhen(true)] object obj)
    {
        if (!(obj is IndexField))
        {
            return false;
        }
        return this == (IndexField)obj;
    }
 
    public override int GetHashCode()
    {
        return Column.GetHashCode() ^ IsDescending.GetHashCode();
    }
}