maui-linux/System.Maui.Xaml/XmlName.cs

using System.Diagnostics;

namespace System.Maui.Xaml
{
	[DebuggerDisplay("{NamespaceURI}:{LocalName}")]
	internal struct XmlName
	{
		public static readonly XmlName _CreateContent = new XmlName("_", "CreateContent");
		public static readonly XmlName xKey = new XmlName("x", "Key");
		public static readonly XmlName xName = new XmlName("x", "Name");
		public static readonly XmlName xTypeArguments = new XmlName("x", "TypeArguments");
		public static readonly XmlName xArguments = new XmlName("x", "Arguments");
		public static readonly XmlName xFactoryMethod = new XmlName("x", "FactoryMethod");
		public static readonly XmlName xDataType = new XmlName("x", "DataType");
		public static readonly XmlName Empty = new XmlName();

		public string NamespaceURI { get; }
		public string LocalName { get; }

		public XmlName(string namespaceUri, string localName)
		{
			NamespaceURI = namespaceUri;
			LocalName = localName;
		}

		public override bool Equals(object obj)
		{
			if (obj == null)
				return false;
			if (obj.GetType() != typeof (XmlName))
				return false;
			var other = (XmlName)obj;
			return NamespaceURI == other.NamespaceURI && LocalName == other.LocalName;
		}

		public bool Equals(string namespaceUri, string localName)
			=> Equals(new XmlName(namespaceUri, localName));

		public override int GetHashCode()
		{
			unchecked
			{
				int hashCode = 0;
				if (NamespaceURI != null)
					hashCode = NamespaceURI.GetHashCode();
				if (LocalName != null)
					hashCode = (hashCode * 397) ^ LocalName.GetHashCode();
				return hashCode;
			}
		}

		public static bool operator ==(XmlName x1, XmlName x2)
			=> x1.NamespaceURI == x2.NamespaceURI && x1.LocalName == x2.LocalName;

		public static bool operator !=(XmlName x1, XmlName x2)
			=>  !(x1 == x2);
	}
}