c# - 如何使用 Roslyn 的 OpenSolutionAsync 解析所有引用？

Question

我正在尝试使用 OpenSolutionAsync 打开 RoslynLight.sln，然后遍历所有项目。出于我的目的，我需要一个语义模型和已解析的引用。通过这个 issue 的组合和 this question ，我得出了这个部分解决方案:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.MSBuild;
using System.IO;

namespace OpenRoslyn
{
  class Program
  {
    static void Main(string[] args)
    {

      var msbw = MSBuildWorkspace.Create();
      var sln = msbw.OpenSolutionAsync(@"C:\Users\carr27\Documents\GitHub\roslyn\src\RoslynLight.sln").Result;
      //var proj = sln.Projects.First(x => x.Name == "CodeAnalysis.Desktop");
      var messages = new List<string>();
      foreach (var p in sln.Projects)
      {
        Console.WriteLine(p.FilePath);
        messages.Add(p.FilePath);
        var facadesDir = @"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6\Facades\";
        var proj = p.AddMetadataReference(MetadataReference.CreateFromAssembly(typeof(object).Assembly));
        proj = proj.AddMetadataReference(MetadataReference.CreateFromFile(facadesDir + "System.Runtime.dll"));
        proj = proj.AddMetadataReference(MetadataReference.CreateFromFile(facadesDir + "System.Runtime.Extensions.dll"));
        proj = proj.AddMetadataReference(MetadataReference.CreateFromFile(facadesDir + "System.IO.dll"));
        proj = proj.AddMetadataReference(MetadataReference.CreateFromFile(facadesDir + "System.Threading.Tasks.dll"));
        proj = proj.AddMetadataReference(MetadataReference.CreateFromFile(facadesDir + "System.Text.Encoding.dll"));
        proj = proj.AddMetadataReference(MetadataReference.CreateFromFile(facadesDir + "System.Reflection.dll"));
        try
        {
          var cu = proj.GetCompilationAsync().Result;
          // here I would do useful work, but for know I just get diagnostics
          foreach (var e in cu.GetDiagnostics().Where(x => x.Severity == DiagnosticSeverity.Error))
          {
            Console.WriteLine("{0}: {1}", e.Location, e.GetMessage());
            messages.Add(String.Format("{0}: {1}", e.Location, e.GetMessage()));
          }
        }
        catch (AggregateException e)
        {
          foreach(var ie in e.InnerExceptions)
          {
            Console.WriteLine(ie.Message);
            messages.Add(ie.Message);
          }

        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
            messages.Add(e.Message);
        }
      }
      File.WriteAllLines("log.txt", messages);
      Console.WriteLine("done.");
      Console.ReadKey();
    }
  }
}

该程序的日志太大，我无法发布，但变通方法仅适用于某些项目。例如rosyln\src\compilers\Core\Desktop\CodeAnalysis.Desktop.csproj没有错误，但是roslyn\src\Compilers\CSharp\Portable\CSharpCodeAnalysis.csproj有:

None: Multiple assemblies with equivalent identity have been imported: 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETPortable\v4.5\Profile\Profile7\System.Threading.Tasks.dll' and 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6\Facades\System.Threading.Tasks.dll'. Remove one of the duplicate references.
None: Multiple assemblies with equivalent identity have been imported: 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETPortable\v4.5\Profile\Profile7\System.Text.Encoding.dll' and 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6\Facades\System.Text.Encoding.dll'. Remove one of the duplicate references.
None: Multiple assemblies with equivalent identity have been imported: 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETPortable\v4.5\Profile\Profile7\System.Runtime.Extensions.dll' and 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6\Facades\System.Runtime.Extensions.dll'. Remove one of the duplicate references.
None: Multiple assemblies with equivalent identity have been imported: 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETPortable\v4.5\Profile\Profile7\System.Runtime.dll' and 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6\Facades\System.Runtime.dll'. Remove one of the duplicate references.
None: Multiple assemblies with equivalent identity have been imported: 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETPortable\v4.5\Profile\Profile7\System.Reflection.dll' and 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6\Facades\System.Reflection.dll'. Remove one of the duplicate references.
None: Multiple assemblies with equivalent identity have been imported: 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETPortable\v4.5\Profile\Profile7\System.IO.dll' and 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6\Facades\System.IO.dll'. Remove one of the duplicate references.
SourceFile(C:\Users\carr27\Documents\GitHub\roslyn\src\Compilers\CSharp\Portable\BoundTree\UnboundLambda.cs[9068..9109)): The type 'ConcurrentDictionary<TKey, TValue>' exists in both 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' and 'System.Collections.Concurrent, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
SourceFile(C:\Users\carr27\Documents\GitHub\roslyn\src\Compilers\CSharp\Portable\BoundTree\UnboundLambda.cs[9203..9250)): The type 'ConcurrentDictionary<TKey, TValue>' exists in both 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' and 'System.Collections.Concurrent, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'

……还有很多其他的。在我看来，我可以通过任何方式使这项工作适用于任意项目/解决方案都非常麻烦。我错过了什么吗？

Answer 1

我正在考虑在 MSBuild 目标中修复此问题，但与此同时，以下解决方法应该可以解决该问题。而不是使用:

MSBuildWorkspace.Create();

使用:

MSBuildWorkspace.Create(new Dictionary<string, string> { { "CheckForSystemRuntimeDependency", "true" } });