hphp/hack/test/typecheck/test_lambda2.php

   1 <?hh //strict
   2
   3 function normal(string $s): int {
   4   return 1;
   5 }
   6
   7 <<__Rx>>
   8 function rx(): void {
   9   $l = <<__NonRx>>() ==> {
  10     normal("text");
  11   };
  12   // Not OK - lambda is not reactive
  13   $l();
  14 }