1 | #Region "Microsoft.VisualBasic::d8bc1d00cad0b167ad1d2d6d37f66594, Microsoft.VisualBasic.Core\Scripting\MetaData\Type.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 TypeInfo |
35 | ' |
36 | ' Properties: assm, FullIdentity, SystemKnownType |
37 | ' |
38 | ' Constructor: (+2 Overloads) Sub New |
39 | ' |
40 | ' Function: [GetType], LoadAssembly, ToString |
41 | ' |
42 | ' Sub: __infoParser |
43 | ' |
44 | ' Operators: <>, = |
45 | ' |
46 | ' |
47 | ' /********************************************************************************/ |
48 | |
49 | #End Region |
50 | |
51 | Imports System.Reflection |
52 | Imports System.Xml.Serialization |
53 | |
54 | Namespace Scripting.MetaData |
55 | |
56 | ''' <summary> |
57 | ''' The type reference information.(类型信息) |
58 | ''' </summary> |
59 | Public Class TypeInfo |
60 | |
61 | ''' <summary> |
62 | ''' The assembly file which contains this type definition.(模块文件) |
63 | ''' </summary> |
64 | ''' <returns></returns> |
65 | <XmlAttribute> Public Property assm As String |
66 | ''' <summary> |
67 | ''' <see cref="Type.FullName"/>.(类型源) |
68 | ''' </summary> |
69 | ''' <returns></returns> |
70 | <XmlAttribute> Public Property FullIdentity As String |
71 | |
72 | ''' <summary> |
73 | ''' Is this type object is a known system type?(是否是已知的类型?) |
74 | ''' </summary> |
75 | ''' <returns></returns> |
76 | Public ReadOnly Property SystemKnownType As Boolean |
77 | Get |
78 | Return Not Scripting.GetType(FullIdentity) Is Nothing |
79 | End Get |
80 | End Property |
81 | |
82 | Sub New() |
83 | End Sub |
84 | |
85 | ''' <summary> |
86 | ''' Creates type reference from the definition. |
87 | ''' </summary> |
88 | ''' <param name="info"></param> |
89 | Sub New(info As Type) |
90 | Call __infoParser(info, assm, FullIdentity) |
91 | End Sub |
92 | |
93 | Private Shared Sub __infoParser(info As Type, ByRef assm As String, ByRef id As String) |
94 | assm = FileIO.FileSystem.GetFileInfo(info.Assembly.Location).Name |
95 | id = info.FullName |
96 | End Sub |
97 | |
98 | Public Overrides Function ToString() As String |
99 | Return $"{assm}!{FullIdentity}" |
100 | End Function |
101 | |
102 | ''' <summary> |
103 | ''' Loads the assembly file which contains this type. If the <param name="DIR"></param> is not a valid directory location, |
104 | ''' then using the location <see cref="App.HOME"/> as default. |
105 | ''' </summary> |
106 | ''' <returns></returns> |
107 | Public Function LoadAssembly(Optional DIR As String = Nothing) As Assembly |
108 | Dim path As String = If(Not DIR.DirectoryExists, App.HOME, DIR) & "/" & Me.assm |
109 | Dim assm As Assembly = Assembly.LoadFile(path) |
110 | Return assm |
111 | End Function |
112 | |
113 | ''' <summary> |
114 | ''' Get mapping type information. |
115 | ''' </summary> |
116 | ''' <returns></returns> |
117 | Public Overloads Function [GetType](Optional knownFirst As Boolean = False) As Type |
118 | Dim type As Type |
119 | |
120 | If knownFirst Then |
121 | type = Scripting.GetType(FullIdentity) |
122 | If Not type Is Nothing Then |
123 | Return type |
124 | End If |
125 | End If |
126 | |
127 | Dim assm As Assembly = LoadAssembly() |
128 | type = assm.GetType(Me.FullIdentity) |
129 | Return type |
130 | End Function |
131 | |
132 | ''' <summary> |
133 | ''' 检查a是否是指向b的类型引用的 |
134 | ''' </summary> |
135 | ''' <param name="a"></param> |
136 | ''' <param name="b"></param> |
137 | ''' <returns></returns> |
138 | Public Overloads Shared Operator =(a As TypeInfo, b As Type) As Boolean |
139 | Dim assm As String = Nothing, type As String = Nothing |
140 | Call __infoParser(b, assm, type) |
141 | Return String.Equals(a.assm, assm, StringComparison.OrdinalIgnoreCase) AndAlso |
142 | String.Equals(a.FullIdentity, type, StringComparison.Ordinal) |
143 | End Operator |
144 | |
145 | Public Overloads Shared Operator <>(a As TypeInfo, b As Type) As Boolean |
146 | Return Not a = b |
147 | End Operator |
148 | End Class |
149 | End Namespace |