Is there a way to only allow experimental coroutines for tes kotlinlang #coroutines

tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
    kotlinOptions {
        kotlinOptions.freeCompilerArgs += ["-Xuse-experimental=kotlin.Experimental"]
    }
}

louiscad

08/12/2019, 7:51 PM

You mean experimental coroutines api? You need to filter the tasks that compile tests. The Gradle tool window in the IDE might be helpful. Also, note that you're activating the Experimental feature of Kotlin in this snippet, not ExperimentalCoroutinesApi.

👍 1

reline

08/12/2019, 8:09 PM

so the warning I’m seeing is

This declaration is experimental and its usages should be marked with @ExperimentalCoroutinesApi or @UseExperimental(ExperimentalCoroutinesApi::class)

so I marked the class with the @UseExperimental annotation but then it warns me

This class can only be used with the compiler argument -Xuse-experimental=kotlin.Experimental

. Does that differ from what you just said? I’m also unsure on what operators to use to filter on test tasks only.

louiscad

08/12/2019, 8:46 PM

You can use their name to filter the ones for tests.

@UseExperimental

is experimental, so you need to opt-in to

kotlin.Experimental

, but an alternative is to opt-in to

kotlinx.coroutines.ExperimentalCoroutinesApi

and not need to add

@UseExperimental

annotation to its usages. I tend to use

@UseExperimental

so I know exactly where they are in case I want or need to change them while them not being deprecated, but I could as well opt-in for all.

miqbaldc

08/13/2019, 3:00 AM

using kotlinOptions is the recommemded one. As stated above, because when you annotating the

@EXperimentalApi

you'll refactor your code to the outside layer as well (the code that implemented it) and it's ugly imho

And for your question, maybe you can wrap the

task.withType

inside the if condition if the source directory is under

test

androidTest

. But that would be my suggestion, I didn't tried that one as well. *nice question

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