如何从.NET Core中的流加载程序集 [英] How to load assembly from stream in .NET Core

问题描述

我在.NET Core控制台应用程序上遇到了Roslyn.我试图创建一个程序集并将其编译到内存流中.但是加载它似乎缺少API(通常可以在常规.NET Framework上运行)

I am experiencing with Roslyn on a .NET Core console application. I tried to create an assembly and compile it into a memory stream. But loading it seems to be missing an API (that normally works on the regular .NET Framework)

var compilation = CSharpCompilation.Create("MyCompilation",
         syntaxTrees: new[] { pocoTree }, references: new[] { mscorlib, currentAssembly });

var ms = new MemoryStream();
var emitResult = compilation.Emit(ms);

var ourAssembly = Assembly.Load(ms.ToArray()); // Fails to compile here

我收到此错误:

无法从"byte []"转换为"System.Reflection.AssemblyName"

cannot convert from 'byte[]' to 'System.Reflection.AssemblyName'

.NET Core中从Steam加载的替代方法是什么? (除了实际保存并加载程序集之外)

What is the alternative in .NET Core to load from a steam? (other than physically saving the assembly and loading it)

推荐答案

您可以使用AssemblyLoadContext从.NET Core中的流中加载程序集:

You can load the assembly from a stream in .NET core using AssemblyLoadContext:

// requires "System.Runtime.Loader": "4.0.0",
protected virtual Assembly LoadAssembly(MemoryStream peStream, MemoryStream pdbStream)
{
    return System.Runtime.Loader.AssemblyLoadContext.Default.LoadFromStream(peStream, pdbStream);
}

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