Would a Kotlin Native library (in KLib form) using...
# kotlin-nativen
napperley
09/26/2019, 11:33 PMWould a Kotlin Native library (in KLib form) using Kotlin 1.3.41 be compatible with a Kotlin Native program using Kotlin 1.3.50?
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basher
09/27/2019, 12:34 AMNo. The ABI is unstable and the ABI version often changes each major release (and did in this case)
basher
09/27/2019, 12:35 AMThe current situation is that major version upgrades in your program have to be accompanied by similar upgrades for all of your libraries
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napperley
09/27/2019, 12:37 AMIn this particular case the version differences are minor. Do both the Kotlin Native library, and program have to use the same Kotlin version?
napperley
09/27/2019, 12:39 AMIs the Kotlin Native ABI going to be stable when the first stable version of Kotlin Native is released?
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kpgalligan
09/27/2019, 1:22 AM“Do both the Kotlin Native library, and program have to use the same Kotlin version?” Major, yes. Minor, no(t as much). 1.3.40 and 1.3.41 will match. 1.3.41 and 1.3.50 will not
kpgalligan
09/27/2019, 1:23 AM“Is the Kotlin Native ABI going to be stable when the first stable version of Kotlin Native is released?” Well, Swift 5.1 is finally ABI stable, so we’ll see?
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napperley
09/27/2019, 1:29 AMWhat has Swift ABI stability got to with Kotlin Native ABI stability?
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kpgalligan
09/27/2019, 1:31 AMNothing?
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napperley
09/27/2019, 1:32 AMTurns out a Kotlin Native library using Kotlin 1.3.41 is compatible with a Kotlin Native program using Kotlin 1.3.50. The main catch is the Gradle version used by the program needs to be compatible with the Gradle Metadata generated by the Kotlin Native library.
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kpgalligan
09/27/2019, 1:34 AMThey’re not, though, or at least they shouldn’t be. You should be getting a compiler error from native. I would think, anyway?
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napperley
09/27/2019, 1:35 AMWas seeing a Gradle metadata error at one stage.
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kpgalligan
09/27/2019, 1:36 AMThat’s different. I’m talking about the native compiler. You should get an error. The gradle thing is just how it resolves the dependency. There are version issues there too, but they’re resolved as of 5.3-ish with metadata 1.0.
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napperley
09/27/2019, 1:41 AMNow seeing the compiler error: The abi versions don't match. Expected '[14]', found '9'
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kpgalligan
09/27/2019, 1:42 AMYeah, that. Was just going to paste mine (same, essentially)
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napperley
09/27/2019, 1:43 AMAlso seeing this message, which clarifies things even further: w: The compiler versions don't match either. Expected '[]', found '1.3.1-release-11173'
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kpgalligan
09/27/2019, 1:43 AMMy project is on 1.3.50 and I switched to a 1.3.41 dep, and it failed. Moved it to the 1.3.50 and it compiled
kpgalligan
09/27/2019, 1:43 AMKotlin native had a different version number scheme before 1.3.50
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napperley
09/27/2019, 1:44 AMWhat was the previous version scheme?
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kpgalligan
09/27/2019, 1:44 AM1.3.0 was 1.3.40, 1.3.1 was 1.3.41 (presumably). With 1.3.50 they aligned.
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napperley
09/27/2019, 1:44 AMMakes sense.
napperley
09/27/2019, 1:45 AMWould it be prudent to make sure both the Kotlin Native library and program use the same Gradle version?
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kpgalligan
09/27/2019, 1:45 AMkpgalligan
09/27/2019, 1:46 AMEh, gradle version doesn’t matter as much after metadata 1.0, but it’s not a bad idea to have them on the same version. I try to do that. Now I generally use 5.4
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napperley
09/27/2019, 1:50 AMGradle 5.4.1 is a safe version to use for Kotlin Native projects.
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kpgalligan
09/27/2019, 1:51 AMYeah, that’s a good one
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