113 lines
3.6 KiB
VB.net
113 lines
3.6 KiB
VB.net
#Region "Microsoft.VisualBasic::9d6786f72ebfd4475e7c88b79cf84fb0, Microsoft.VisualBasic.Core\Scripting\Runtime\OverloadsFunction.vb"
|
|
|
|
' 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 OverloadsFunction
|
|
'
|
|
' Properties: Name
|
|
'
|
|
' Constructor: (+1 Overloads) Sub New
|
|
' Function: Align, Match, ToString
|
|
'
|
|
'
|
|
' /********************************************************************************/
|
|
|
|
#End Region
|
|
|
|
Imports System.Reflection
|
|
Imports Microsoft.VisualBasic.ComponentModel.Collection.Generic
|
|
Imports Microsoft.VisualBasic.ComponentModel.DataSourceModel.Repository
|
|
Imports Microsoft.VisualBasic.Linq
|
|
|
|
Namespace Scripting.Runtime
|
|
|
|
Public Class OverloadsFunction
|
|
Implements INamedValue
|
|
|
|
Public Property Name As String Implements IKeyedEntity(Of String).Key
|
|
|
|
ReadOnly functions As MethodInfo()
|
|
|
|
Sub New(name$, methods As IEnumerable(Of MethodInfo))
|
|
Me.Name = name
|
|
Me.functions = methods.ToArray
|
|
End Sub
|
|
|
|
Public Function Match(args As Type()) As MethodInfo
|
|
Dim alignments = functions.Select(Function(m) Align(m, args)).ToArray
|
|
Dim p = Linq.Which.Max(alignments)
|
|
|
|
If alignments(p) <= 0 Then
|
|
Return Nothing
|
|
End If
|
|
|
|
Dim method As MethodInfo = functions(p)
|
|
Return method
|
|
End Function
|
|
|
|
''' <summary>
|
|
''' Find the best matched overloads function based on the input parameter
|
|
''' </summary>
|
|
''' <param name="target"></param>
|
|
''' <param name="args"></param>
|
|
''' <returns></returns>
|
|
Public Shared Function Align(target As MethodInfo, args As Type()) As Double
|
|
Dim params = target.GetParameters
|
|
|
|
If args.Length > params.Length Then
|
|
Return -1
|
|
ElseIf params.Length = args.Length AndAlso args.Length = 0 Then
|
|
Return 100000000
|
|
End If
|
|
|
|
Dim score#
|
|
Dim tmp%
|
|
|
|
For i As Integer = 0 To args.Length - 1
|
|
tmp = 1000
|
|
|
|
If Not args(i).IsInheritsFrom(params(i).ParameterType, False, tmp) Then
|
|
Return -1 ' 类型不符，则肯定不可以使用这个方法
|
|
Else
|
|
score += (Short.MaxValue - tmp)
|
|
End If
|
|
Next
|
|
|
|
Return score
|
|
End Function
|
|
|
|
Public Overrides Function ToString() As String
|
|
Return $"{Name} (+{functions.Length} Overloads)"
|
|
End Function
|
|
End Class
|
|
End Namespace
|