Files
kotlin-fork/compiler/testData/diagnostics/tests/inference/regressions/kt2484.fir.kt
T

19 lines
687 B
Kotlin
Vendored

//KT-2484 Type inferred for function literal is (...) -> Int instead of (...) -> Unit, when function literal parameter is explicit
package a
//+JDK
fun <T> Array<T>.forEach(operation: (T) -> Unit) : Unit { for (element in this) operation(element) }
fun bar(operation: (String) -> Unit) = operation("")
fun main(args: Array<String>) {
args.forEach { a : String -> a.length } // Type mismatch: (String) -> Unit required, (String) -> Int found
args.forEach { a -> a.length } // Type mismatch: (String) -> Unit required, (String) -> Int found
args.forEach { it.length } // This works!
bar { a: String -> a.length }
bar { a -> a.length }
bar { it.length }
}