Prohibit not-Unit suspend functions

#KT-13560 Fixed
2016-09-29 15:55:28 +03:00
parent 96186c6217
commit d4418d5686
4 changed files with 11 additions and 0 deletions
@@ -80,6 +80,10 @@ object SuspendModifierChecker : SimpleDeclarationChecker {
        if (continuationParameterType?.arguments?.firstOrNull()?.isStarProjection == true) {
            report("Continuation<*> is prohibited as a last parameter of suspend function")
        }
+
+        if (functionDescriptor.returnType?.isUnit() != true) {
+            report("return type of suspension function must be a kotlin.Unit, but ${functionDescriptor.returnType} was found")
+        }
    }
 }