Mono CSharp Compiler Error with Gotos

我正在使用Mono.CSharp.Evaluator的一個實例來編譯一些代碼並返回一個函數。在我使用goto之前它一直沒有問題。我正在用VS2012構建.NET 4.5。我正在通過Evaluator.Evaluate下面的代碼，並在對象存儲，以便以後執行：Mono CSharp Compiler Error with Gotos

 Func<Dictionary<string, object>, dynamic, LogWrapperMethod, LogWrapperMethod, LogWrapperMethod, LogWrapperMethod, ExcWrapperMethod, AddResultWrapperMethod, int> a = new Func<Dictionary<string, object>, dynamic, LogWrapperMethod, LogWrapperMethod, LogWrapperMethod, LogWrapperMethod, ExcWrapperMethod, AddResultWrapperMethod, int>((parameters, self, debug, log, warn, error, exception, addResult) => 
     { 

      Console.WriteLine("beforegoto"); 
      goto Ben; 
     Ben: 
      Console.WriteLine("gotoResult"); 
      return 0; 

     });

我越來越InternalErrorException（（1,1）：）的的InnerException是

壞標籤在的ILGenerator

at System.Reflection.Emit.ILGenerator.GetLabelPos(Label lbl) 
at System.Reflection.Emit.ILGenerator.BakeByteArray() 
at System.Reflection.Emit.MethodBuilder.CreateMethodBodyHelper(ILGenerator il) 
at System.Reflection.Emit.TypeBuilder.CreateTypeNoLock() 
at System.Reflection.Emit.TypeBuilder.CreateType() 
at Mono.CSharp.TypeDefinition.CloseContainer()

我這樣

 _settings = new CompilerSettings 
         { 
          EnhancedWarnings = true, 
          Stacktrace = true, 
          ShowFullPaths = true, 
          Timestamps = true, 
          Optimize = true, 
          AssemblyReferences = new List<string> 
                { 
                 "Microsoft.CSharp.dll" 
                }, 
         }; 
     _ctx = new CompilerContext(_settings, new Reporter()); 
     _e = new Evaluator(_ctx); 
     _e.Run("using System;"); 
     _e.Run("using System.Collections.Generic;"); 
     _e.Run("using System.Dynamic;"); 
     _e.Run("using System.Linq;"); 
     _e.Run("using System.Text.RegularExpressions;");

0設立評估程序（_E）含量

有沒有人有任何想法如何解決這個問題？

感謝，本

來源

2013-11-20 user2849000

您的匿名功能之外是否有另一個名爲'Ben'的標籤？ –

我已經加倍檢查過了，而且我不需要 – user2849000

[報告錯誤]（https://bugzilla.xamarin.com/enter_bug.cgi?classification=__all）最有可能讓您更好。他們非常敏感。 –

一些擺弄後，我通過改變Evaluator.Run，稍微改變運行代碼，然後運行Evaluator.Evaluate修復了這個問題。修改後的代碼如下

_e.Run("object o = Func<Dictionary<string, object>, dynamic, LogWrapperMethod, LogWrapperMethod, LogWrapperMethod, LogWrapperMethod, ExcWrapperMethod, AddResultWrapperMethod, int> a = new Func<Dictionary<string, object>, dynamic, LogWrapperMethod, LogWrapperMethod, LogWrapperMethod, LogWrapperMethod, ExcWrapperMethod, AddResultWrapperMethod, int>((parameters, self, debug, log, warn, error, exception, addResult) => 
    { 

     Console.WriteLine(\"beforegoto\"); 
     goto Ben; 
    Ben: 
     Console.WriteLine(\"gotoResult\"); 
     return 0; 

    });"); 
object func = _e.Evaluate("o");

來源

2013-11-30 16:58:29 user2849000

Mono CSharp Compiler Error with Gotos

回答

相關問題