Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/tools/mono-api-html/EventComparer.cs

@@ -0,0 +1,75 @@
+// 
+// Authors
+//    Sebastien Pouliot  <sebastien@xamarin.com>
+//
+// Copyright 2013 Xamarin Inc. http://www.xamarin.com
+// 
+// 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.
+//
+
+using System;
+using System.Text;
+using System.Xml.Linq;
+
+namespace Xamarin.ApiDiff {
+
+	public class EventComparer : MemberComparer {
+
+		public override string GroupName {
+			get { return "events"; }
+		}
+
+		public override string ElementName {
+			get { return "event"; }
+		}
+
+		public override bool Equals (XElement source, XElement target, ApiChanges changes)
+		{
+			if (base.Equals (source, target, changes))
+				return true;
+
+			var change = new ApiChange ();
+			change.Header = "Modified " + GroupName;
+			change.Append ("public event ");
+
+			var srcEventType = source.GetTypeName ("eventtype");
+			var tgtEventType = target.GetTypeName ("eventtype");
+
+			if (srcEventType != tgtEventType) {
+				change.AppendModified (srcEventType, tgtEventType, true);
+			} else {
+				change.Append (srcEventType);
+			}
+			change.Append (" ");
+			change.Append (source.GetAttribute ("name")).Append (";");
+			return false;
+		}
+
+		public override string GetDescription (XElement e)
+		{
+			StringBuilder sb = new StringBuilder ();
+			// TODO: attribs
+			sb.Append ("public event ");
+			sb.Append (e.GetTypeName ("eventtype")).Append (' ');
+			sb.Append (e.GetAttribute ("name")).Append (';');
+			return sb.ToString ();
+		}
+	}
+}