ChameleonKey.cs

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using System.Diagnostics.CodeAnalysis;
 
namespace System.Xml.Schema;
 
internal sealed class ChameleonKey
{
    internal string targetNS;
 
    internal Uri chameleonLocation;
 
    internal XmlSchema originalSchema;
 
    private int _hashCode;
 
    public ChameleonKey(string ns, XmlSchema originalSchema)
    {
        targetNS = ns;
        chameleonLocation = originalSchema.BaseUri;
        if (chameleonLocation.OriginalString.Length == 0)
        {
            this.originalSchema = originalSchema;
        }
    }
 
    public override int GetHashCode()
    {
        if (_hashCode == 0)
        {
            _hashCode = targetNS.GetHashCode() + chameleonLocation.GetHashCode() + ((originalSchema != null) ? originalSchema.GetHashCode() : 0);
        }
        return _hashCode;
    }
 
    public override bool Equals([NotNullWhen(true)] object obj)
    {
        if (this == obj)
        {
            return true;
        }
        if (obj is ChameleonKey chameleonKey)
        {
            if (targetNS.Equals(chameleonKey.targetNS) && chameleonLocation.Equals(chameleonKey.chameleonLocation))
            {
                return originalSchema == chameleonKey.originalSchema;
            }
            return false;
        }
        return false;
    }
}