XmlName.cs

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using System.Xml.Schema;
 
namespace System.Xml;
 
internal class XmlName : IXmlSchemaInfo
{
    private readonly string _prefix;
 
    private readonly string _localName;
 
    private readonly string _ns;
 
    private string _name;
 
    private readonly int _hashCode;
 
    internal XmlDocument ownerDoc;
 
    internal XmlName next;
 
    public string LocalName => _localName;
 
    public string NamespaceURI => _ns;
 
    public string Prefix => _prefix;
 
    public int HashCode => _hashCode;
 
    public XmlDocument OwnerDocument => ownerDoc;
 
    public string Name
    {
        get
        {
            if (_name == null)
            {
                if (_prefix.Length > 0)
                {
                    if (_localName.Length > 0)
                    {
                        string array = _prefix + ":" + _localName;
                        lock (ownerDoc.NameTable)
                        {
                            if (_name == null)
                            {
                                _name = ownerDoc.NameTable.Add(array);
                            }
                        }
                    }
                    else
                    {
                        _name = _prefix;
                    }
                }
                else
                {
                    _name = _localName;
                }
            }
            return _name;
        }
    }
 
    public virtual XmlSchemaValidity Validity => XmlSchemaValidity.NotKnown;
 
    public virtual bool IsDefault => false;
 
    public virtual bool IsNil => false;
 
    public virtual XmlSchemaSimpleType MemberType => null;
 
    public virtual XmlSchemaType SchemaType => null;
 
    public virtual XmlSchemaElement SchemaElement => null;
 
    public virtual XmlSchemaAttribute SchemaAttribute => null;
 
    public static XmlName Create(string prefix, string localName, string ns, int hashCode, XmlDocument ownerDoc, XmlName next, IXmlSchemaInfo schemaInfo)
    {
        if (schemaInfo == null)
        {
            return new XmlName(prefix, localName, ns, hashCode, ownerDoc, next);
        }
        return new XmlNameEx(prefix, localName, ns, hashCode, ownerDoc, next, schemaInfo);
    }
 
    internal XmlName(string prefix, string localName, string ns, int hashCode, XmlDocument ownerDoc, XmlName next)
    {
        _prefix = prefix;
        _localName = localName;
        _ns = ns;
        _name = null;
        _hashCode = hashCode;
        this.ownerDoc = ownerDoc;
        this.next = next;
    }
 
    public virtual bool Equals(IXmlSchemaInfo schemaInfo)
    {
        return schemaInfo == null;
    }
 
    public static int GetHashCode(string name)
    {
        int result = 0;
        if (name != null)
        {
            return string.GetHashCode(name.AsSpan(name.LastIndexOf(':') + 1));
        }
        return result;
    }
}