Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,81 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Xml.Linq;
+
+namespace Xamarin.ApiDiff
+{
+	public class ApiChange
+	{
+		public string Header;
+		public StringBuilder Member = new StringBuilder ();
+		public bool Breaking;
+		public bool AnyChange;
+		public bool HasIgnoredChanges;
+
+		public ApiChange Append (string text)
+		{
+			Member.Append (text);
+			return this;
+		}
+
+		public ApiChange AppendAdded (string text, bool breaking = false)
+		{
+			Member.Append ("<span class='added ").Append (breaking ? "added-breaking-inline" : string.Empty).Append ("'>");
+			Member.Append (text);
+			Member.Append ("</span>");
+			Breaking |= breaking;
+			AnyChange = true;
+			return this;
+		}
+
+		public ApiChange AppendRemoved (string text, bool breaking = true)
+		{
+			Member.Append ("<span class='removed removed-inline ").Append (breaking ? "removed-breaking-inline" : string.Empty).Append ("'>");
+			Member.Append (text);
+			Member.Append ("</span>");
+			Breaking |= breaking;
+			AnyChange = true;
+			return this;
+		}
+
+		public ApiChange AppendModified (string old, string @new, bool breaking = true)
+		{
+			if (old.Length > 0)
+				AppendRemoved (old, breaking);
+			if (old.Length > 0 && @new.Length > 0)
+				Append (" ");
+			if (@new.Length > 0)
+				AppendAdded (@new);
+			Breaking |= breaking;
+			AnyChange = true;
+			return this;
+		}
+	}
+
+	public class ApiChanges : Dictionary<string, List<ApiChange>> {
+		public void Add (XElement source, XElement target, ApiChange change)
+		{
+			if (!change.AnyChange) {
+				// This is most likely because the rendering doesn't take into account something that's different (solution: fix rendering).
+				if (!change.HasIgnoredChanges) {
+					var isField = source.Name.LocalName == "field";
+					if (isField) {
+						Console.WriteLine ("Comparison resulting in no changes (src: {2} dst: {3}) :\n{0}\n{1}\n\n", source.ToString (), target.ToString (), source.GetFieldAttributes (), target.GetFieldAttributes ());
+					} else {
+						Console.WriteLine ("Comparison resulting in no changes (src: {2} dst: {3}) :\n{0}\n{1}\n\n", source.ToString (), target.ToString (), source.GetMethodAttributes (), target.GetMethodAttributes ());
+					}
+				}
+				return;
+			}
+
+			List<ApiChange> list;
+			if (!TryGetValue (change.Header, out list)) {
+				list = new List<ApiChange> ();
+				base.Add (change.Header, list);
+			}
+			list.Add (change);
+		}
+	}
+}
+