roslyn

In old .NET we used to be able to run the csc compiler to compile a single .cs file or several files. With .NET Core we have dotnet build that insists on having a proper project file. Is there a stand-alone command line compiler that would allow to compile source code files without having a project (and listing referenced dependencies on the same command line)? On Linux, when I have the old csc and the new .NET Core installed, I get these timings: [root@li1742-80 test]# time dotnet build Microsoft (R) Build Engine version 15.3.409.57025 for .NET Core Copyright (C) Microsoft Corporation. All

Now that we have enum constraint, why doesn't compiler allow me to write this code? public static TResult? ToEnum<TResult>(this String value, TResult? defaultValue) where TResult : Enum { return String.IsNullOrEmpty(value) ? defaultValue : (TResult?)Enum.Parse(typeof(TResult), value); } The compiler says: Error CS0453 The type 'TResult' must be a non-nullable value type in order to use it as parameter 'T' in the generic type or method 'Nullable' You can, but you have to add another constraint: the struct constraint. public static void DoSomething<T>(T? defaultValue) where T : struct, Enum { }

(What I'm trying to do is work around the Application.Settings/MVVM problem by generating an interface and wrapper class from the vs-generated settings file.) What I'd like to do is: Parse a class declaration from file Generate an interface declaration based on just the (non static) properties of the class Generate a wrapper class which implements this interface, takes an instance of the original class in the constructor, and 'pipes' all the properties through to the instance. Generate another class which implements the interface directly. My question is two-fold: Am I barking up the wrong

I just recently downloaded and installed Visual Studio Professional 2015 (14.0.23107.0). The first time I opened up our solution (28 projects) and performed a Build -> Rebuild Solution, my development machine came to an absolute crawl. The CPU was maxed out at 100% and the build never completed - even after > 10 minutes. I opened up Windows Task Manager and noticed: > 10 VBCSCompiler.exe tasks running. When combined, these tasks sent the CPU > 90%. Any idea why there are so many of these tasks running? Any way to stop this from happening? This is the closest thing I can find to someone else

If I want to support scripting in my application, does scriptcs offer any particular advantages over just using the plain vanilla Roslyn script engine? Unfortunately there's not much documentation on hosting scriptcs yet, but I'll try to give you a short summary. Hosting scriptcs in your application provides several features that vanilla Roslyn doesn't: Pluggable Engines While scriptcs comes with the Roslyn and Mono engines by default, you can easily replace it with another engine, i.e. F# , LOLcode or even Brainfuck . Pre-processing scriptcs will process your scripts and extract things like