#, #line directive output

[ncave]

This builds, but does not output any AST:

module Test
#line 25 "somefile.fs"
let i = 1

If you take the #line directive out, then it works.

[alfonsogarciacaro]

Interesting. Fable builds a file map to be able to create the necessary imports between the generated JS files later. However, if you use the #line directive, the file location of the entities (entity.ImplementationLocation.FileName) and the implementation files (parsedProject.AssemblyContents.ImplementationFiles) mismatch (in the sample, the later becomes somefile.fs) so the file map breaks down.

I don't think this is an easy fix, why do you need the #line directive. Are you generating code?

[ncave]

No, I'm compiling generated code with Fable. It's fine, I can just remove the #line directives.

[alfonsogarciacaro]

Great, thanks for the clarification. I'll close the issue then. Please feel free to reopen it if needed.