[FE 1.0] Support suspend only SAM conversions

^KT-50477 Fixed
2022-01-12 18:45:47 +03:00
parent d2c0234895
commit 22b2554368
15 changed files with 157 additions and 8 deletions
@@ -0,0 +1,30 @@
+// !LANGUAGE: +SuspendOnlySamConversions
+// TARGET_BACKEND: JVM_IR
+
+fun interface FI {
+    suspend fun call() // suspending now(!!!)
+}
+
+fun accept(fi: FI): Int = 1
+
+suspend fun foo() {}
+fun foo2() {}
+
+fun box(): String {
+    val fi0: () -> Unit = {}
+    accept(fi0)
+
+    val fi: suspend () -> Unit = {} // Lambda of a suspending(!!!) functional type
+    accept(fi) // ERROR: Type mismatch. Required: FI Found: suspend () → Unit
+
+    accept(::foo)
+    val x1 = ::foo
+    accept(x1) // ERROR: Type mismatch. Required: FI Found: suspend () → Unit
+
+    accept(::foo2)
+    val x2 = ::foo2
+    accept(x2) // ERROR: Type mismatch. Required: FI Found: suspend () → Unit
+
+    return "OK"
+}
+