```// in kotlin you can suspend fun hi() { sus...

# language-evolution

[Mikhail]

// in kotlin you can
suspend fun hi() {
    suspend fun thing() {
    }
 
    thing()
}

// you can
suspend fun hi() {
    val thing: suspend () -> Unit = {
    }

    thing()
}

// you can
fun hi() {
    val thing = fun() {
    }
  
    thing()
}

// but you CAN'T
suspend fun hi() {
    val thing = suspend fun() {
    }

    thing()
}

any specific reason?

[ephemient]

val thing = suspend {
}

works fine, the grammar just doesn't allow for suspending anonymous functions right now. in fact, suspending function literals aren't a "real" thing either; suspend {} isn't a keyword, but rather an inline function taking a lambda: https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/suspend.html

[ephemient]

the latter is intended to change in the future: https://youtrack.jetbrains.com/issue/KT-22765/Introduce-suspend-modifier-for-lambdas

[ephemient]

and I expect that will enable https://youtrack.jetbrains.com/issue/KT-18346/Support-anonymous-function-literals-as-suspend-lambdas

[Ilmir Usmanov [JB]]

It is a bug: https://youtrack.jetbrains.com/issue/KT-27650/Literal-suspend-fun-can-be-used-then-ClassCastException-is-thrown-in-a-runtime