Hello! Does anyone have a clue why syntax highlighting of Swift code interacting with KMP fails to ...

# multiplatform

[David Everlöf]

Hello!

Does anyone have a clue why syntax highlighting of Swift code interacting with KMP fails to syntax highlight so badly?
I've attached a simple example.

[François]

Yes, a lot!

[François]

My guess, it’s xcode who don’t like the big umbrella header.

[David Everlöf]

But.. it's actually quite small. It's currently 2.2k. It was previously 27k, and the I'd suppose it's reasonable for it to fail

[François]

Check the output of this command

SOURCEKIT_LOGGING=3 /Applications/Xcode.app/Contents/MacOS/Xcode

At least it helps me about the completion, I will also retry for the highlighting

[François]

BTW: Xcode is not really reliable about this kind of issue (for many years).
At least the completion is working (sometimes)

[David Everlöf]

What am I looking for in the source kit-logging?

Is the request - response mapped by the index within the square brackets?

2025-10-09 09:17:49.815 Xcode[2509:7109359] SourceKit-client: [2:request:259:184.3122] [34]

2025-10-09 09:17:49.816 Xcode[2509:7109362] SourceKit-client: [2:response:278043:184.3139] [34] {
}

[François]

What am I looking for in the source kit-logging?

Good question! I was expected to see some error on the output, but there is nothing.
I’m not an expert on sourcekit