[build] Change the way how mcs references are passed to compiler to always use full...

[mono.git] / mcs / tools / mono-api-html / Comparer.cs

diff --git a/mcs/tools/mono-api-html/Comparer.cs b/mcs/tools/mono-api-html/Comparer.cs
new file mode 100644 (file)
index 0000000..4210b9b
--- /dev/null
+++ b/mcs/tools/mono-api-html/Comparer.cs
@@ -0,0 +1,98 @@
+// 
+// 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.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Xml.Linq;
+
+namespace Xamarin.ApiDiff {
+
+       public abstract class Comparer {
+
+               protected List<XElement> removed = new List<XElement> ();
+               protected ApiChanges modified = new ApiChanges ();
+
+               public TextWriter Output {
+                       get { return State.Output; }
+               }
+
+               protected TextWriter Indent ()
+               {
+                       for (int i = 0; i < State.Indent; i++)
+                               State.Output.Write ("\t");
+                       return State.Output;
+               }
+
+               public abstract void Added (XElement target, bool wasParentAdded);
+               public abstract void Modified (XElement source, XElement target, ApiChanges changes);
+               public abstract void Removed (XElement source);
+
+               public virtual bool Equals (XElement source, XElement target, ApiChanges changes)
+               {
+                       return XNode.DeepEquals (source, target);
+               }
+
+               public abstract void SetContext (XElement current);
+
+               public virtual void Compare (IEnumerable<XElement> source, IEnumerable<XElement> target)
+               {
+                       removed.Clear ();
+                       modified.Clear ();
+
+                       foreach (var s in source) {
+                               SetContext (s);
+                               string sn = s.GetAttribute ("name");
+                               var t = target == null ? null : target.SingleOrDefault (x => x.GetAttribute ("name") == sn);
+                               if (t == null) {
+                                       // not in target, it was removed
+                                       removed.Add (s);
+                               } else {
+                                       t.Remove ();
+                                       // possibly modified
+                                       if (Equals (s, t, modified))
+                                               continue;
+
+                                       // still in target so will be part of Added
+                                       Modified (s, t, modified);
+                               }
+                       }
+                       // delayed, that way we show "Modified", "Added" and then "Removed"
+                       foreach (var item in removed) {
+                               SetContext (item);
+                               Removed (item);
+                       }
+                       // remaining == newly added in target
+                       if (target != null) {
+                               foreach (var item in target) {
+                                       SetContext (item);
+                                       Added (item, false);
+                               }
+                       }
+               }
+       }
+}
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