Gotos的Mono CSharp編譯器錯誤

Question

我正在使用Mono.CSharp.Evaluator的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。 我正在使用VS2012為.NET 4.5進行構建。 我正在通過Evaluator.Evaluate運行以下代碼，並將其存儲在對象中以供以后執行：

        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;

        });

我正在獲取InternalErrorException（（1,1）：）InnerException是

ILGenerator中的標簽內容不正確

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()

我正在這樣設置評估程序（_e）

        _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;");

是否有人有解決此問題的想法？

謝謝，本

Answer 1

經過一番擺弄之后，我通過更改為Evaluator.Run，​​稍微更改運行代碼然后運行Evaluator.Evaluate來解決了此問題。 修改后的代碼如下

_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");