从 Visual Studio 编译时,以下 VB.NET 代码可以工作:
Sub Main()
Dim source As Dictionary(Of String, Integer) = New Dictionary(Of String, Integer)
Dim result = From i In source
Where String.IsNullOrEmpty(i.Key)
Select i.Value
End Sub
但是,当尝试通过使用它来编译它时,CodeDom
它似乎不使用隐式续行(我可以通过添加下划线使其工作,但这正是我想要避免的)。
使用的代码:
static void Main(string[] args)
{
string vbSource = @"
Imports System
Imports System.Collections.Generic
Imports System.Linq
Module Module1
Sub Main()
Dim source As Dictionary(Of String, Integer) = New Dictionary(Of String, Integer)
Dim result = From i In source
Where String.IsNullOrEmpty(i.Key)
Select i.Value
End Sub
End Module
";
var providerOptions = new Dictionary<string, string>();
providerOptions.Add("CompilerVersion", "v3.5"); // .NET v3.5
CodeDomProvider codeProvider = new Microsoft.VisualBasic.VBCodeProvider(providerOptions);
CompilerParameters parameters = new CompilerParameters();
parameters.GenerateInMemory = true;
parameters.ReferencedAssemblies.Add("System.Core.dll");
CompilerResults results = codeProvider.CompileAssemblyFromSource(parameters, vbSource);
}