hphp/runtime/base/tv-conversions-inl.h

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-2014 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
  17 #include "hphp/runtime/base/type-conversions.h" // toInt64(double)
  18
  19 namespace HPHP {
  20
  21 //////////////////////////////////////////////////////////////////////
  22
  23 inline bool cellToBool(Cell cell) {
  24   assert(cellIsPlausible(cell));
  25
  26   switch (cell.m_type) {
  27   case KindOfUninit:
  28   case KindOfNull:          return false;
  29   case KindOfInt64:         return cell.m_data.num != 0;
  30   case KindOfBoolean:       return cell.m_data.num;
  31   case KindOfDouble:        return cell.m_data.dbl != 0;
  32   case KindOfStaticString:
  33   case KindOfString:        return cell.m_data.pstr->toBoolean();
  34   case KindOfArray:         return !cell.m_data.parr->empty();
  35   case KindOfObject:        return cell.m_data.pobj->o_toBoolean();
  36   case KindOfResource:      return cell.m_data.pres->o_toBoolean();
  37   default:                  break;
  38   }
  39   not_reached();
  40 }
  41
  42 inline int64_t cellToInt(Cell cell) {
  43   assert(cellIsPlausible(cell));
  44
  45   switch (cell.m_type) {
  46   case KindOfInt64:        return cell.m_data.num;
  47   case KindOfDouble:       return toInt64(cell.m_data.dbl);
  48   case KindOfString:
  49   case KindOfStaticString: return cell.m_data.pstr->toInt64(10);
  50   case KindOfArray:        return cell.m_data.parr->empty() ? 0 : 1;
  51   case KindOfObject:       return cell.m_data.pobj->o_toInt64();
  52   case KindOfResource:     return cell.m_data.pres->o_toInt64();
  53   case KindOfBoolean:      return cell.m_data.num;
  54   case KindOfUninit:
  55   case KindOfNull:         return 0;
  56   default:                 break;
  57   }
  58   not_reached();
  59 }
  60
  61 inline double cellToDouble(Cell cell) {
  62   Cell tmp;
  63   cellDup(cell, tmp);
  64   tvCastToDoubleInPlace(&tmp);
  65   return tmp.m_data.dbl;
  66 }
  67
  68 inline TypedNum stringToNumeric(const StringData* sd) {
  69   int64_t ival;
  70   double dval;
  71   auto const dt = sd->isNumericWithVal(ival, dval, true /* allow_errors */);
  72   return dt == KindOfInt64 ? make_tv<KindOfInt64>(ival) :
  73          dt == KindOfDouble ? make_tv<KindOfDouble>(dval) :
  74          make_tv<KindOfInt64>(0);
  75 }
  76
  77 //////////////////////////////////////////////////////////////////////
  78
  79 }