.net Core amd Roslyn CSharpCompilation，“对象"类型在未引用的程序集中定义 [英] .net Core amd Roslyn CSharpCompilation, The type 'Object' is defined in an assembly that is not referenced

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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