.net Core和Roslyn CSharpCompilation，类型'Object'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运行时中，而移植一些即时编译时却遇到了麻烦。

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.

要恢复，它总是要求我引用System.Runtime和mscorlib，但是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.

作为补充，我可以请参考Framework 4.6，因为必须将项目发布到具有.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.

这是最小代码：

        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（在此示例中）和System.Runtime（在我的真实情况下）项目）。

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

我正在使用Microsoft.CodeAnalysis.CSharp软件包版本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进行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，终于可以正常工作了：

Ok, got it finally working:

    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，因为采用硬编码，但这似乎是使其工作的唯一途径

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

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