.net Core amd Roslyn CSharpCompilation，“对象"类型在未引用的程序集中定义

问题描述

我正在尝试将一些 .net 代码移植到新的 Core 运行时，但我在移植一些即时编译时遇到了麻烦.

I'm trying to port some .net code to the new Core runtime and I'm having a bad time porting some on-the-fly compilation.

要继续，它总是要求我提供 System.Runtime 和 mscorlib 的引用，但不知道如何引用它们.

To resume, it always asks me for a reference to System.Runtime and mscorlib, but have no clue on how to reference them.

顺便提一下，我不能引用 Framework 4.6，因为该项目必须发布到带有 .net Core 的 Linux 机器上.

As a side note, I can't reference Framework 4.6 as the project must be published to a Linux machine with .net Core.

这是最低代码:

        string testClass = @"using System;
        namespace test{

         public class tes
         {

           public string unescape(string Text)
          {
            return Uri.UnescapeDataString(Text);
          }

         }

        }";

        var compilation = CSharpCompilation.Create(Guid.NewGuid().ToString() + ".dll")
            .WithOptions(new CSharpCompilationOptions(Microsoft.CodeAnalysis.OutputKind.DynamicallyLinkedLibrary))
            .AddReferences(
            MetadataReference.CreateFromFile(typeof(Object).GetTypeInfo().Assembly.Location),
            MetadataReference.CreateFromFile(typeof(Uri).GetTypeInfo().Assembly.Location)
            )
            .AddSyntaxTrees(CSharpSyntaxTree.ParseText(testClass));

        var eResult = compilation.Emit("test.dll");

它总是抱怨需要 mscorlib(在本例中)和 System.Runtime(在我的实际项目中).

It always complains about the need of mscorlib (in this example) and System.Runtime (in my real project).

我使用的是 Microsoft.CodeAnalysis.CSharp 包版本 2.0.0-beta3

I'm using the Microsoft.CodeAnalysis.CSharp package version 2.0.0-beta3

关于如何使用 Roslyn 和 .net Core 即时编译的任何想法?

Any ideas on how to compile on the fly with Roslyn and .net Core?

推荐答案

好的，终于搞定了:

    string testClass = @"using System;
    namespace test{

     public class tes
     {

       public string unescape(string Text)
      {
        return Uri.UnescapeDataString(Text);
      }

     }

    }";

    var dd = typeof(Enumerable).GetTypeInfo().Assembly.Location;
    var coreDir = Directory.GetParent(dd);

    var compilation = CSharpCompilation.Create(Guid.NewGuid().ToString() + ".dll")
        .WithOptions(new CSharpCompilationOptions(Microsoft.CodeAnalysis.OutputKind.DynamicallyLinkedLibrary))
        .AddReferences(
        MetadataReference.CreateFromFile(typeof(Object).GetTypeInfo().Assembly.Location),
        MetadataReference.CreateFromFile(typeof(Uri).GetTypeInfo().Assembly.Location),
        MetadataReference.CreateFromFile(coreDir.FullName + Path.DirectorySeparatorChar + "mscorlib.dll"),
        MetadataReference.CreateFromFile(coreDir.FullName + Path.DirectorySeparatorChar + "System.Runtime.dll")
        )
        .AddSyntaxTrees(CSharpSyntaxTree.ParseText(testClass));

    var eResult = compilation.Emit("test.dll");

我不喜欢它，因为硬编码，但它似乎是让它工作的唯一方法.

I don't like it because the hardcoding, but it seems it's the only way to get it work.

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