hphp/hack/test/typecheck/printf.php

   1 <?hh // strict
   2 /**
   3  * Copyright (c) 2014, Facebook, Inc.
   4  * All rights reserved.
   5  *
   6  * This source code is licensed under the MIT license found in the
   7  * LICENSE file in the "hack" directory of this source tree.
   8  *
   9  *
  10  */
  11
  12 interface FormatString<T> { }
  13
  14 interface Dummy {
  15   public function format_0x25() : string;
  16   public function format_0x2e() : Dummy;
  17   public function format_f(float $s) : string;
  18   public function format_s(string $s) : string;
  19 }
  20
  21 function f(FormatString<Dummy> $fs, mixed ...$args) : void {
  22 }
  23
  24 function _() {
  25   f('%.....s %%', 'foo');
  26   f('%f', 0.1);
  27   f('%' . 's', 0.1);
  28 }