106 lines
3.3 KiB
VB.net
106 lines
3.3 KiB
VB.net
#Region "Microsoft.VisualBasic::27579ccb20e6051398794740ba47a9a7, Microsoft.VisualBasic.Core\Language\Value\var.vb"
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' Author:
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'
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' asuka (amethyst.asuka@gcmodeller.org)
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' xie (genetics@smrucc.org)
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' xieguigang (xie.guigang@live.com)
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'
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' Copyright (c) 2018 GPL3 Licensed
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'
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'
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' GNU GENERAL PUBLIC LICENSE (GPL3)
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'
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'
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' This program is free software: you can redistribute it and/or modify
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' it under the terms of the GNU General Public License as published by
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' the Free Software Foundation, either version 3 of the License, or
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' (at your option) any later version.
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'
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' This program is distributed in the hope that it will be useful,
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' but WITHOUT ANY WARRANTY; without even the implied warranty of
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' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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' GNU General Public License for more details.
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'
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' You should have received a copy of the GNU General Public License
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' along with this program. If not, see <http://www.gnu.org/licenses/>.
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' /********************************************************************************/
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' Summaries:
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' Class Value
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'
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' Properties: IsNumeric, IsString, Name, Trace, Type
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'
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' Function: ToString
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'
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'
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' /********************************************************************************/
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#End Region
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Imports System.Reflection
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Imports Microsoft.VisualBasic.ComponentModel.Collection.Generic
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Imports Microsoft.VisualBasic.ComponentModel.DataSourceModel
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Imports Microsoft.VisualBasic.ComponentModel.DataSourceModel.Repository
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Namespace Language
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''' <summary>
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''' Variable model in VisualBasic
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''' </summary>
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Public Class Value : Inherits Value(Of Object)
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Implements INamedValue
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Public Property Name As String Implements IKeyedEntity(Of String).Key
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Public Property Type As Type
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''' <summary>
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''' 这个变量所在的函数的位置记录
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''' </summary>
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''' <returns></returns>
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Public Property Trace As NamedValue(Of MethodBase)
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''' <summary>
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''' Is a numeric type?
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''' </summary>
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''' <returns></returns>
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Public ReadOnly Property IsNumeric As Boolean
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Get
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Dim tcode As TypeCode = Type.GetTypeCode(Type)
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If tcode = TypeCode.Byte OrElse
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tcode = TypeCode.Decimal OrElse
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tcode = TypeCode.Double OrElse
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tcode = TypeCode.Int16 OrElse
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tcode = TypeCode.Int32 OrElse
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tcode = TypeCode.Int64 OrElse
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tcode = TypeCode.Single OrElse
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tcode = TypeCode.UInt16 OrElse
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tcode = TypeCode.UInt32 OrElse
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tcode = TypeCode.UInt64 Then
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Return True
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Else
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Return False
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End If
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End Get
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End Property
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Public ReadOnly Property IsString As Boolean
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Get
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Return Type.Equals(GetType(String))
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End Get
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End Property
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Public Overrides Function ToString() As String
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If value Is Nothing Then
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Return Nothing
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End If
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Return value.ToString
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End Function
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End Class
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End Namespace
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