jsExternTryCatch

actual inline fun <T> jsExternTryCatch(block: () -> T): T(source)

Helper for calling externally defined code in order to propagate a proper JS Error. On Kotlin/Js this simply calls block, but on Kotlin/WasmJs block is wrapped in a function call and run from Js within its own try/catch block. If an Error was caught, it is returned to Kotlin code, converted to Throwable, and then thrown.

NOTE: This should only be utilized for externally defined calls, not general kotlin code.

e.g.

internal external interface SomeJsThing {
    fun doSomethingFromJs(): Int
}

fun executeFromKotlin(thing: SomeJsThing): Int {
    return try {
        jsExternTryCatch { thing.doSomethingFromJs() }
    } catch(t: Throwable) {
        println(t.errorCodeOrNull)
        throw t
    }
}

Throws

Throwable

If block throws exception

@DelicateFileApi

expect inline fun <T> jsExternTryCatch(crossinline block: () -> T): T(source)

Helper for calling externally defined code in order to propagate a proper JS Error. On Kotlin/Js this simply calls block, but on Kotlin/WasmJs block is wrapped in a function call and run from Js within its own try/catch block. If an Error was caught, it is returned to Kotlin code, converted to Throwable, and then thrown.

NOTE: This should only be utilized for externally defined calls, not general kotlin code.

e.g.

internal external interface SomeJsThing {
    fun doSomethingFromJs(): Int
}

fun executeFromKotlin(thing: SomeJsThing): Int {
    return try {
        jsExternTryCatch { thing.doSomethingFromJs() }
    } catch(t: Throwable) {
        println(t.errorCodeOrNull)
        throw t
    }
}

Throws

Throwable

If block throws exception

@DelicateFileApi

actual inline fun <T> jsExternTryCatch(crossinline block: () -> T): T(source)

Helper for calling externally defined code in order to propagate a proper JS Error. On Kotlin/Js this simply calls block, but on Kotlin/WasmJs block is wrapped in a function call and run from Js within its own try/catch block. If an Error was caught, it is returned to Kotlin code, converted to Throwable, and then thrown.

NOTE: This should only be utilized for externally defined calls, not general kotlin code.

e.g.

internal external interface SomeJsThing {
    fun doSomethingFromJs(): Int
}

fun executeFromKotlin(thing: SomeJsThing): Int {
    return try {
        jsExternTryCatch { thing.doSomethingFromJs() }
    } catch(t: Throwable) {
        println(t.errorCodeOrNull)
        throw t
    }
}

Throws

Throwable

If block throws exception

jsExternTryCatch

See also

Throws

See also

Throws

See also

Throws