Is it possible to use KSP on non-JVM source sets in a multiplatform project, even if compilation wil...

# ksp

[natario1]

Is it possible to use KSP on non-JVM source sets in a multiplatform project, even if compilation will fail?

Say you have a non-JVM target and you are interested in analyzing the source code, without code generation. For example, count how many functions have the @Function annotation. May be a weird idea but what I'm thinking is:
• add a fake JVM target which reads the non-JVM source set
• run KSP on this target, count @Function s or any other read-only symbol operation
• have compilation fail, we don't care because it's a fake target
Would this be possible? I'm not sure if KSP gets a chance to run if the source set is not compilable (it has non-JVM imports, non-JVM dependencies...)

[russhwolf]

I did a proof-of-concept sort of like this with common code, where I had a jvm module that applies KSP and a multiplatform module that includes the same source in its common source-set. I wouldn't be optimistic that it would work if you needed to include platform-specific code on non-JVM platforms.

[russhwolf]

maybe you could hack something together with dummy classes on the JVM side since you don't actually need it to run

[natario1]

I tried with a simple setup, having a JVM source set, but adding unresolved imports, say import foo and later foo.bar(). My KSP processor just logs hello world.

Great news is that in a clean gradle build, I can see the KSP log before failure. If this works with other platforms too (it should?), I think we only need a way to catch and swallow the error. In Gradle or maybe some special compiler flag

[russhwolf]

Issue I ran into is, if you have other platforms besides JVM then including KSP will fail the build. That's why I set up a separate JVM-only project just to do the KSP analysis

[russhwolf]

It's not pretty

[natario1]

You're right... Got stuck against https://github.com/google/ksp/issues/367

[russhwolf]

Right, that's why I could only get it working by running ksp from a separate jvm module