mcs/tools/corcompare/mono-api-html/FieldComparer.cs

   1 //
   2 // Authors
   3 //    Sebastien Pouliot  <sebastien@xamarin.com>
   4 //
   5 // Copyright 2013-2014 Xamarin Inc. http://www.xamarin.com
   6 //
   7 // Permission is hereby granted, free of charge, to any person obtaining
   8 // a copy of this software and associated documentation files (the
   9 // "Software"), to deal in the Software without restriction, including
  10 // without limitation the rights to use, copy, modify, merge, publish,
  11 // distribute, sublicense, and/or sell copies of the Software, and to
  12 // permit persons to whom the Software is furnished to do so, subject to
  13 // the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be
  16 // included in all copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  21 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  22 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25 //
  26
  27 using System;
  28 using System.Collections.Generic;
  29 using System.Linq;
  30 using System.Reflection;
  31 using System.Text;
  32 using System.Xml.Linq;
  33
  34 namespace Xamarin.ApiDiff {
  35
  36         public class FieldComparer : MemberComparer {
  37
  38                 public override string GroupName {
  39                         get { return "fields"; }
  40                 }
  41
  42                 public override string ElementName {
  43                         get { return "field"; }
  44                 }
  45
  46                 public override string GetDescription (XElement e)
  47                 {
  48                         var sb = new StringBuilder ();
  49
  50                         string name = e.GetAttribute ("name");
  51                         string value = e.GetAttribute ("value");
  52
  53                         if (State.BaseType == "System.Enum") {
  54                                 sb.Append (name).Append (" = ").Append (value).Append (',');
  55                         } else {
  56                                 var attribs = e.Attribute ("attrib");
  57                                 if (attribs != null) {
  58                                         var attr = (FieldAttributes)Int32.Parse (attribs.Value);
  59                                         if ((attr & FieldAttributes.Public) != FieldAttributes.Public) {
  60                                                 sb.Append ("protected ");
  61                                         } else {
  62                                                 sb.Append ("public ");
  63                                         }
  64
  65                                         if ((attr & FieldAttributes.Static) != 0)
  66                                                 sb.Append ("static ");
  67
  68                                         if ((attr & FieldAttributes.Literal) != 0)
  69                                                 sb.Append ("const ");
  70                                 }
  71
  72                                 string ftype = e.GetTypeName ("fieldtype");
  73                                 sb.Append (ftype).Append (' ');
  74                                 sb.Append (name);
  75                                 if (ftype == "string" && e.Attribute ("value") != null) {
  76                                         if (value == null)
  77                                                 sb.Append (" = null");
  78                                         else
  79                                                 sb.Append (" = \"").Append (value).Append ('"');
  80                                 }
  81                                 sb.Append (';');
  82                         }
  83
  84                         return sb.ToString ();
  85                 }
  86
  87                 public override void BeforeAdding (IEnumerable<XElement> list)
  88                 {
  89                         first = true;
  90                         if (State.BaseType == "System.Enum")
  91                                 Output.WriteLine ("<p>Added value{0}:</p><pre>", list.Count () > 1 ? "s" : String.Empty);
  92                         else
  93                                 base.BeforeAdding (list);
  94                 }
  95
  96                 public override void BeforeRemoving (IEnumerable<XElement> list)
  97                 {
  98                         first = true;
  99                         if (State.BaseType == "System.Enum")
 100                                 Output.WriteLine ("<p>Removed value{0}:</p><pre>", list.Count () > 1 ? "s" : String.Empty);
 101                         else
 102                                 base.BeforeRemoving (list);
 103                 }
 104         }
 105 }