hphp/hack/test/typecheck/expression_trees_not_virtualize_functions/pipe_no_dollardollar.php

   1 <?hh
   2
   3 <<file:__EnableUnstableFeatures('expression_trees')>>
   4
   5 // Note that there is no usage of the $$ here.
   6 // The check for assignment in pipe only checks to see whether $$ is in scope,
   7 // not whether it is being used
   8 // For assignments to occur in expression trees,
   9 // a splice will cause an evaluation of an assignment
  10 function test(ExprTree<ExampleDsl, ExampleDsl::TAst, ExampleInt> $x): void {
  11   1 |> ExampleDsl`${$x}`;
  12 }