Preprocessing directives in namespace definitions not handled correctly

[mawett]

#endif is always missing in generated stubs, when the interface has namespace definition with preprocessor directives.
Example:

namespace myProject.sublibrary
{
    using System;
    using System.Collections.Generic;
    using System.IO;
#if WinIoT
    using System.Threading.Tasks;
#else
    using myProject.ThreadingLib
#endif

In this case the generated stubs contain the #if statement, but no #else or #endif and therefore no build is possible.

[nehmebilal]

Sounds like a bug. I don't think preprocessor definitions are not handled at all (see here for how usings are being carried over to stubs). We would need to explicitly handle preprocessor definitions.

Please take a look at developers documentation for how to get started and it shouldn't be too hard to add handling for preprocessor definitions. I am happy to answer any questions.

[mawett]

Ok, thanks for the hint where to start. I will take a look. However, it might take some time until I get around to it. Additionally, I have not yet worked with the Roslyn Code Analysers, so I'll have to look into that as well. I'll get back to you if I have any concrete questions.

[nehmebilal]

Sounds good @mawett. It's a bit tricky because preprocessor definitions can be around anything, not just usings, and they are not being handled at the moment.