Imported Upstream version 4.8.0.309

Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850

external/cecil-legacy/Mono.Cecil.Metadata/MetadataToken.cs

@@ -0,0 +1,105 @@
+//
+// MetadataToken.cs
+//
+// Author:
+//   Jb Evain (jbevain@gmail.com)
+//
+// Copyright (c) 2008 - 2011 Jb Evain
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+namespace Mono.Cecil {
+
+	public struct MetadataToken {
+
+		readonly uint token;
+
+		public uint RID	{
+			get { return token & 0x00ffffff; }
+		}
+
+		public TokenType TokenType {
+			get { return (TokenType) (token & 0xff000000); }
+		}
+
+		public static readonly MetadataToken Zero = new MetadataToken ((uint) 0);
+
+		public MetadataToken (uint token)
+		{
+			this.token = token;
+		}
+
+		public MetadataToken (TokenType type)
+			: this (type, 0)
+		{
+		}
+
+		public MetadataToken (TokenType type, uint rid)
+		{
+			token = (uint) type | rid;
+		}
+
+		public MetadataToken (TokenType type, int rid)
+		{
+			token = (uint) type | (uint) rid;
+		}
+
+		public int ToInt32 ()
+		{
+			return (int) token;
+		}
+
+		public uint ToUInt32 ()
+		{
+			return token;
+		}
+
+		public override int GetHashCode ()
+		{
+			return (int) token;
+		}
+
+		public override bool Equals (object obj)
+		{
+			if (obj is MetadataToken) {
+				var other = (MetadataToken) obj;
+				return other.token == token;
+			}
+
+			return false;
+		}
+
+		public static bool operator == (MetadataToken one, MetadataToken other)
+		{
+			return one.token == other.token;
+		}
+
+		public static bool operator != (MetadataToken one, MetadataToken other)
+		{
+			return one.token != other.token;
+		}
+
+		public override string ToString ()
+		{
+			return string.Format ("[{0}:0x{1}]", TokenType, RID.ToString ("x4"));
+		}
+	}
+}