Expand macros in Swift file from command line?

[moreindirection]

Is there any command-line utility that will accept a Swift file, expand all macros in the file and emit the result?

[carlhung]

I haven’t tried. But I saw it in other post
-Xfrontend -dump-macro-expansions

Don’t blame me if it doesn’t work.

[ahoppen (Alex Hoppen)]

There currently doesn’t exist a command-line utility that outputs the expanded file.