hphp/runtime/base/enum-util.cpp

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com)  |
   6    +----------------------------------------------------------------------+
   7    | This source file is subject to version 3.01 of the PHP license,      |
   8    | that is bundled with this package in the file LICENSE, and is        |
   9    | available through the world-wide-web at the following url:           |
  10    | http://www.php.net/license/3_01.txt                                  |
  11    | If you did not receive a copy of the PHP license and are unable to   |
  12    | obtain it through the world-wide-web, please send a note to          |
  13    | license@php.net so we can mail you a copy immediately.               |
  14    +----------------------------------------------------------------------+
  15 */
  16 #include "hphp/runtime/base/enum-util.h"
  17
  18 #include "hphp/runtime/base/datatype.h"
  19 #include "hphp/runtime/base/enum-cache.h"
  20
  21 namespace HPHP {
  22
  23 ///////////////////////////////////////////////////////////////////////////////
  24
  25 bool enumHasValue(const Class* cls, const TypedValue* cell) {
  26   assertx(isEnum(cls));
  27   auto const type = cell->m_type;
  28   if (UNLIKELY(type != KindOfInt64 && !isStringType(type))) {
  29     return false;
  30   }
  31   auto const values = EnumCache::getValuesBuiltin(cls);
  32   // Manually perform int-like key conversion even if names is a dict, for
  33   // backwards compatibility.
  34   int64_t num;
  35   if (isStringType(type) &&
  36       cell->m_data.pstr->isStrictlyInteger(num)) {
  37    return values->names.exists(num);
  38   }
  39   return values->names.exists(*cell);
  40 }
  41
  42 ///////////////////////////////////////////////////////////////////////////////
  43
  44 }