What does this flag do? -Didea.kotlin.plugin.use....

# k2-adopters

[rrva]

What does this flag do?

-Didea.kotlin.plugin.use.k2=true

as opposed to the gradle kotlinOptions.useK2 flag

[Ivan Kubyshkin [JetBrains]]

The option in gradle file enables k2 compiler.
IDE flag enables K2 IDE plugin.

[dmitriy.novozhilov]

Note that it's not recommended to use -Didea.kotlin.plugin.use.k2=true until official announcement, because we don't have any stability and quality guarantees for K2 IDE yet

[rrva]

will ”build using gradle” be replaced with a new mechanism for ”build using intellij” ?

today, for my specific build, ”build using gradle” is faster despite intellij help text hinting the opposite

[Ivan Kubyshkin [JetBrains]]

No, this is two different mechanism with pros and cons. It’s better to use build using gradle with gradle.

[rrva]

will the flag I asked about only affect ”build using IntelliJ” and not code analysis etc?

[rrva]

ok, so it might be usable for a gradle user as well?

[rrva]

thanks, I will wait for an official announcement/docs for this flag

[Ivan Kubyshkin [JetBrains]]

Which exact flag do you mean? When you use kotlinOptions.useK2=true the compiler send information to IDE and IDE shows it. It doesn’t matter what build system do you use.

[rrva]

I meant the flag

-Didea.kotlin.plugin.use.k2=true

[Ivan Kubyshkin [JetBrains]]

It’s a new IDE plugin which is under development. It will be usable for all build systems.