Is System.CodeDom a part of .NET Core 2?

[jlahteen]

According to .NET Api Browser System.CodeDom should be a part of .NET Core 2. However, .NET Core 2 SDK does not seem to contain the library System.CodeDom.dll. Some googling on the topic suggests that .NET Core 2 doesn't cover System.CodeDom. Is this a bug in the documentation?

[terrajobst]

That's a bug in the documentation we're trying to address. CodeDom is available for .NET Core 2.0 but it's not part of .NET Core 2.0. In other words, you'll need to reference the System.CodeDom NuGet package.

[jlahteen]

Thanks for the answer. It's great that CodeDom is available for .NET Core since it enables dynamic code compilation for different scenarios.

However, the current version of System.CodeDom throws PlatformNotSupported for every CompileAssembly* method of CSharpCodeGenerator since they all end up to the method FromFileBatch which throws that exception systematically. Just wondering whether this is still the current state of development or should it already work. Everything works well in my experiment project if I just change the target framework from netcoreapp2.0 to net462.

[terrajobst]

That's unfortunately by-design as the compilers are not part of the .NET Core runtime. However, given that CodeDOM isn't referenced by the core (it only comes in when people depend on it/via the compat pack) we could probably fix this. I've filed this bug.

[dgamma3]

I'm getting the same issue as @jlahteen, how do we resolve it?

[terrajobst]

@dgamma3

We don't support compiling with CodeDOM yet. It's tracked by https://github.com/dotnet/corefx/issues/12180.