using System.Runtime.CompilerServices; namespace NUnit.Framework.Constraints.Comparers { internal static class CharsComparer { [System.Runtime.CompilerServices.NullableContext(1)] public static EqualMethodResult Equal(object x, object y, ref Tolerance tolerance, ComparisonState state, NUnitEqualityComparer equalityComparer) { if (x is char) { char c = (char)x; if (y is char) { char c2 = (char)y; if (tolerance.HasVariance) return EqualMethodResult.ToleranceNotSupported; bool ignoreCase = equalityComparer.IgnoreCase; char c3 = ignoreCase ? char.ToLower(c) : c; char c4 = ignoreCase ? char.ToLower(c2) : c2; if (c3 != c4) return EqualMethodResult.ComparedNotEqual; return EqualMethodResult.ComparedEqual; } } return EqualMethodResult.TypesNotSupported; } } }