I'm getting a Platform declaration clash even with...

# getting-started

[elect]

I'm getting a Platform declaration clash even with @OverloadResolutionByLambdaReturnType for these functions

Platform declaration clash: The following declarations have the same JVM signature (generateListing(Ljava/lang/Integer;Ljava/lang/String;Lkotlin/jvm/functions/Function1;)Ljava/util/Iterator;):

fun generateListing(maxAmount: Int? = ..., after: String? = ..., func: (String?) -> CommitList): Iterator<Commit> defined in lakefs

fun generateListing(maxAmount: Int? = ..., after: String? = ..., func: (String?) -> DiffList): Iterator<Diff> defined in lakefs

fun generateListing(maxAmount: Int? = ..., after: String? = ..., func: (String?) -> ObjectStatsList): Iterator<ObjectStats> defined in lakefs

fun generateListing(maxAmount: Int? = ..., after: String? = ..., func: (String?) -> RefList): Iterator<Ref> defined in lakefs

Why? Shouldn't this work?

[hfhbd]

The return type isn’t part of the Java function signature.

[hfhbd]

Technically Kotlin could add the return type to the Kotlin function signature (ignoring the problematic case when calling without a assignment) and could generate valid JVM byte code but you will loose Java interop so it is not implemented (and possibly never will). As a workaround use JvmName

[elect]

OverloadResolutionByLambdaReturnType should make func signature unique, given its return type (docs)

[hfhbd]

The function resolution of the Kotlin compiler has nothing to do with the Java signature clash, you still need JvmName to prevent the latter, see https://github.com/JetBrains/kotlin/blob/171ea3571c4c1f2f0b23e3c9448e635889392f67/libraries/stdlib/api/js/kotlin.text.kt#L339 for a sample.

[elect]

you were right, it worked, thanks

[elect]

I really wish Kotlin would add that

[hfhbd]

Well, this won't be compatible with Java. It also makes calls weird if you don't care about the result.

[elect]

well, JvmName could provide compatibility