<?hh
/**
* Copyright (c) 2014, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
*/
/**
* This file contains a bunch of php stubs for functions that have been added
* to hhvm (though aren't in a release yet). These are important because the
* Hack typechecker can understand them
*/
class InvariantViolationException extends Exception {}
function invariant(mixed $test, string $message): void {
if (!$test) {
invariant_violation($message);
}
}
function invariant_violation(string $message): void {
throw new InvariantViolationException($message);
}
function class_meth(string $class, string $method) {
return array($class, $method);
}