129 lines
4.9 KiB
VB.net
129 lines
4.9 KiB
VB.net
#Region "Microsoft.VisualBasic::d8b6f46f12dc7bc47dcaa346d479d398, Microsoft.VisualBasic.Core\CommandLine\InteropService\CLIAbstractor.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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' Module CLIAbstractor
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'
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' Function: CLICaller, CLIUsage
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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 System.Runtime.CompilerServices
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Imports System.Text
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Imports Microsoft.VisualBasic.Language
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Imports Microsoft.VisualBasic.Scripting.Runtime
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Namespace CommandLine.InteropService
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''' <summary>
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''' 将函数的定义抽象为一个命令行，从而能够提供更好的命令行编写服务
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''' </summary>
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Public Module CLIAbstractor
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''' <summary>
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''' Abstract the function declare as a CLI usage declare. This tool not support the generic function method.
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''' (不支持泛型函数)
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''' </summary>
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''' <param name="api"></param>
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''' <param name="prefix$"></param>
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''' <returns></returns>
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Public Function CLIUsage(api As MethodInfo, Optional prefix$ = "/") As String
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Dim isGeneric = (Not api.GetGenericArguments.IsNullOrEmpty) Or die($"Function abstract tool not working on a generic method: {api.DeclaringType.FullName}::{api.Name}!")
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Dim name$ = prefix & api.Name
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Dim args As New List(Of ParameterInfo)(api.GetParameters)
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Dim optionalArguments = args.Where(Function(param) param.IsOptional).ToArray
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Dim requiredArguments = args - optionalArguments
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Dim usage As New StringBuilder
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Dim required$ = requiredArguments _
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.Select(Function(param)
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Return $"{prefix}{param.Name} <value:={param.Name}>"
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End Function) _
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.JoinBy(" ")
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Dim optionals = optionalArguments _
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.Select(Function(param)
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If param.ParameterType Is GetType(Boolean) Then
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Return $"{prefix}{param.Name}"
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Else
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Dim default$ = $"<default={CStrSafe(param.DefaultValue)}>"
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Return $"{prefix}{param.Name} {[default]}"
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End If
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End Function) _
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.JoinBy(" ")
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Call usage.Append(name & " ")
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Call usage.Append(required)
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Call usage.Append(" ")
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Call usage.Append($"[{optionals}]")
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Return usage.ToString.Trim
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End Function
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<Extension> Public Function CLICaller(api As MethodInfo, args As CommandLine) As Integer
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Dim paramValues As List(Of Object)
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Dim names As Dictionary(Of String, String)
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Dim parameters = api.GetParameters
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If parameters.Length = 1 AndAlso parameters(Scan0).ParameterType Is GetType(CommandLine) Then
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Return DirectCast(api.Invoke(Nothing, {args}), Integer)
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Else
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paramValues = New List(Of Object)
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End If
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names = args _
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.Keys _
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.ToDictionary(Function(k)
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Return k.Trim("/"c, "-"c).Trim.ToLower
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End Function)
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For Each param As ParameterInfo In api.GetParameters
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Dim name$ = param.Name.ToLower
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If param.ParameterType Is GetType(Boolean) Then
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paramValues += names.ContainsKey(name)
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Else
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paramValues += Scripting.CTypeDynamic(
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args(names(name)),
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param.ParameterType
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)
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End If
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Next
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Dim result% = DirectCast(api.Invoke(Nothing, paramValues.ToArray), Integer)
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Return result
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End Function
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End Module
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End Namespace
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