microsoft-visualbasic-runtime/ApplicationServices/LanguageHelper/LanguageAttribute.vb

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2019-03-10 18:10:46 +08:00
#Region "Microsoft.VisualBasic::32440ddcf8c97f7be3cf918c5dd8093d, Microsoft.VisualBasic.Core\ApplicationServices\LanguageHelper\LanguageAttribute.vb"
2018-08-02 20:14:48 +08:00
' Author:
'
' asuka (amethyst.asuka@gcmodeller.org)
' xie (genetics@smrucc.org)
' xieguigang (xie.guigang@live.com)
'
' Copyright (c) 2018 GPL3 Licensed
'
'
' GNU GENERAL PUBLIC LICENSE (GPL3)
'
'
' This program is free software: you can redistribute it and/or modify
' it under the terms of the GNU General Public License as published by
' the Free Software Foundation, either version 3 of the License, or
' (at your option) any later version.
'
' This program is distributed in the hope that it will be useful,
' but WITHOUT ANY WARRANTY; without even the implied warranty of
' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
' GNU General Public License for more details.
'
' You should have received a copy of the GNU General Public License
' along with this program. If not, see <http://www.gnu.org/licenses/>.
' /********************************************************************************/
' Summaries:
' Class LanguageAttribute
'
' Properties: Language, Text
'
' Constructor: (+1 Overloads) Sub New
' Function: ToString
'
'
' /********************************************************************************/
#End Region
Namespace ApplicationServices.Globalization
<AttributeUsage(AttributeTargets.Property Or
AttributeTargets.Field Or
AttributeTargets.Enum, AllowMultiple:=True, Inherited:=True)>
Public Class LanguageAttribute : Inherits Attribute
Public ReadOnly Property Language As Integer
Public ReadOnly Property Text As String
ReadOnly _langEnum As Type
''' <summary>
'''
''' </summary>
''' <param name="Language">The language of the target object.</param>
''' <param name="Context"></param>
''' <param name="langEnum">This type define should be a enum type.</param>
''' <remarks></remarks>
Sub New(Language As Integer, Context As String, Optional langEnum As Type = Nothing)
Me.Language = Language
Me.Text = Context
Me._langEnum = langEnum
End Sub
Public Overrides Function ToString() As String
If _langEnum Is Nothing Then
Return Text
Else
Dim language As String = CTypeDynamic(Me.Language, _langEnum)
Return $"@{language} ""{Text}"""
End If
End Function
Public Shared Narrowing Operator CType(context As LanguageAttribute) As String
Return context.Text
End Operator
End Class
End Namespace