1 | #Region "Microsoft.VisualBasic::53e7c6597d5aef0c229055d7d29eadc6, Microsoft.VisualBasic.Core\Text\Xml\Serialization\XmlComment.vb" |
2 | |
3 | ' Author: |
4 | ' |
5 | ' asuka (amethyst.asuka@gcmodeller.org) |
6 | ' xie (genetics@smrucc.org) |
7 | ' xieguigang (xie.guigang@live.com) |
8 | ' |
9 | ' Copyright (c) 2018 GPL3 Licensed |
10 | ' |
11 | ' |
12 | ' GNU GENERAL PUBLIC LICENSE (GPL3) |
13 | ' |
14 | ' |
15 | ' This program is free software: you can redistribute it and/or modify |
16 | ' it under the terms of the GNU General Public License as published by |
17 | ' the Free Software Foundation, either version 3 of the License, or |
18 | ' (at your option) any later version. |
19 | ' |
20 | ' This program is distributed in the hope that it will be useful, |
21 | ' but WITHOUT ANY WARRANTY; without even the implied warranty of |
22 | ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
23 | ' GNU General Public License for more details. |
24 | ' |
25 | ' You should have received a copy of the GNU General Public License |
26 | ' along with this program. If not, see <http://www.gnu.org/licenses/>. |
27 | |
28 | |
29 | |
30 | ' /********************************************************************************/ |
31 | |
32 | ' Summaries: |
33 | |
34 | ' Class XmlCommentAttribute |
35 | ' |
36 | ' Properties: Value |
37 | ' |
38 | ' Constructor: (+1 Overloads) Sub New |
39 | ' Function: ToString |
40 | ' |
41 | ' Module XmlCommentExtensions |
42 | ' |
43 | ' Function: GetXmlComment, GetXmlCommentAttribute |
44 | ' |
45 | ' |
46 | ' /********************************************************************************/ |
47 | |
48 | #End Region |
49 | |
50 | Imports System.Reflection |
51 | Imports System.Runtime.CompilerServices |
52 | Imports System.Xml |
53 | |
54 | Namespace Text.Xml.Serialization |
55 | |
56 | <AttributeUsage(AttributeTargets.Property, AllowMultiple:=False)> |
57 | Public Class XmlCommentAttribute : Inherits Attribute |
58 | |
59 | Public Property Value As String |
60 | |
61 | Sub New(value As String) |
62 | _Value = value |
63 | End Sub |
64 | |
65 | Public Overrides Function ToString() As String |
66 | Return Value |
67 | End Function |
68 | End Class |
69 | |
70 | Public Module XmlCommentExtensions |
71 | |
72 | Const XmlCommentPropertyPostfix$ = "XmlComment" |
73 | |
74 | <Extension> |
75 | Public Function GetXmlCommentAttribute(type As Type, <CallerMemberName> Optional memberName$ = Nothing) As XmlCommentAttribute |
76 | Dim member = type.GetProperty(memberName) |
77 | |
78 | If (member Is Nothing) Then |
79 | Return Nothing |
80 | Else |
81 | Dim attr = member.GetCustomAttribute(Of XmlCommentAttribute)() |
82 | Return attr |
83 | End If |
84 | End Function |
85 | |
86 | <Extension> |
87 | Public Function GetXmlComment(type As Type, <CallerMemberName> Optional memberName$ = "") As XmlComment |
88 | Dim attr = GetXmlCommentAttribute(type, memberName) |
89 | |
90 | If (attr Is Nothing) Then |
91 | If (memberName.EndsWith(XmlCommentPropertyPostfix)) Then |
92 | attr = type.GetXmlCommentAttribute(memberName.Substring(0, memberName.Length - XmlCommentPropertyPostfix.Length)) |
93 | End If |
94 | End If |
95 | |
96 | If (attr Is Nothing OrElse String.IsNullOrEmpty(attr.Value)) Then |
97 | Return Nothing |
98 | Else |
99 | Return New XmlDocument().CreateComment(attr.Value) |
100 | End If |
101 | End Function |
102 | End Module |
103 | End Namespace |