Hi. how can I opt-in for all annotations? tried so...

# multiplatform

[Giorgi]

Hi. how can I opt-in for all annotations? tried something like all { languageSettings.optIn("*") } but it does not work

[Giorgi]

fails with

e: file:///Users/Giorgi_Shalvashvili/IdeaProjects/catchclicker/data/src/commonTest/kotlin/com/app/data/bluetooth/dto/SetupPacketTest.kt:40:25 This declaration needs opt-in. Its usage must be marked with '@kotlin.ExperimentalStdlibApi' or '@OptIn(kotlin.ExperimentalStdlibApi::class)'

[Moussa]

I'm not sure if there is a way not need to use it all, but you can add this in build.gradle.kts

kotlin {
    targets.all {
        compilations.all {
            compileTaskProvider.configure {
                compilerOptions {
                    // For the usage of expect/actual warning
                    freeCompilerArgs.add("-Xexpect-actual-classes")
                    // For not needing to add `ExperimentalCoroutinesApi`
                    freeCompilerArgs.add("-opt-in=kotlinx.coroutines.ExperimentalCoroutinesApi")
                    // For not needing to add `ExperimentalUuidApi`
                    freeCompilerArgs.add("-opt-in=kotlin.uuid.ExperimentalUuidApi")
                    // For you specific case you would add `kotlin.ExperimentalStdlibApi`
                    freeCompilerArgs.add("-opt-in=kotlin.ExperimentalStdlibApi")
                }
            }
        }
    }
}

OR you can have something like this

kotlin {
    sourceSets {
        all {
            languageSettings {
                optIn("kotlin.uuid.ExperimentalUuidApi")
            }
        }
       // OR Per target
       commonTest {
            languageSettings {
                optIn("kotlin.uuid.ExperimentalUuidApi")
            }
        }
    }
}

[tapchicoma]

kotlin {
    compilerOptions.optIn(listOf("..."))
}

[Giorgi]

> compilerOptions.optIn(listOf("..."))
at first got Unresolved reference. and had to change to compilerOptions.optIn = listOf("..."). that also did not work. still get errors like This declaration needs opt-in. Its usage must be marked with '@kotlin.ExperimentalStdlibApi' or '@OptIn(kotlin.ExperimentalStdlibApi::class)'

> compilerOptions {
> // For the usage of expect/actual warning
> freeCompilerArgs.add("-Xexpect-actual-classes")
> // For not needing to add ExperimentalCoroutinesApi
> freeCompilerArgs.add("-opt-in=kotlinx.coroutines.ExperimentalCoroutinesApi")
> // For not needing to add ExperimentalUuidApi
> freeCompilerArgs.add("-opt-in=kotlin.uuid.ExperimentalUuidApi")
> // For you specific case you would add kotlin.ExperimentalStdlibApi
> freeCompilerArgs.add("-opt-in=kotlin.ExperimentalStdlibApi")
> }
that will only work for that specific classes. Also other libraries will have their opt-in annotations for example compose.

it's just annoying to keep adding those annotations, especially for small projects that is just for learning.

[tapchicoma]

@Giorgi at the moment such case is not support and you should file a new Kotlin feature request to add a new compiler argument to optin to all @OptIn preset in the compilation: https://kotl.in/issue

[Giorgi]

done https://youtrack.jetbrains.com/issue/KT-75081/Provide-a-way-to-opt-in-to-all-Opt-In-annotations