hphp/runtime/vm/rx-inl.h

   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
  17 #ifndef incl_HPHP_VM_RX_INL_H_
  18 #error "rx-inl.h should only be included by rx.h"
  19 #endif
  20
  21 namespace HPHP {
  22 ///////////////////////////////////////////////////////////////////////////////
  23
  24 inline Attr rxAttrsFromAttrString(const std::string& a) {
  25   if (a == "conditional_rx_local")   return rxMakeAttr(RxLevel::Local, true);
  26   if (a == "conditional_rx_shallow") return rxMakeAttr(RxLevel::Shallow, true);
  27   if (a == "conditional_rx")         return rxMakeAttr(RxLevel::Rx, true);
  28   if (a == "rx_local")               return rxMakeAttr(RxLevel::Local, false);
  29   if (a == "rx_shallow")             return rxMakeAttr(RxLevel::Shallow, false);
  30   if (a == "rx")                     return rxMakeAttr(RxLevel::Rx, false);
  31   return static_cast<Attr>(0);
  32 }
  33
  34 inline const char* rxAttrsToAttrString(Attr attrs) {
  35   auto const c = rxConditionalFromAttr(attrs);
  36   switch (rxLevelFromAttr(attrs)) {
  37     case RxLevel::None:    return nullptr;
  38     case RxLevel::Local:   return c ? "conditional_rx_local" : "rx_local";
  39     case RxLevel::Shallow: return c ? "conditional_rx_shallow" : "rx_shallow";
  40     case RxLevel::Rx:      return c ? "conditional_rx" : "rx";
  41   }
  42   not_reached();
  43 }
  44
  45 inline const char* rxLevelToString(RxLevel level) {
  46   switch (level) {
  47     case RxLevel::None:    return "non-reactive";
  48     case RxLevel::Local:   return "local reactive";
  49     case RxLevel::Shallow: return "shallow reactive";
  50     case RxLevel::Rx:      return "reactive";
  51   }
  52   not_reached();
  53 }
  54
  55 inline bool rxEnforceCallsInLevel(RxLevel level) {
  56   return level >= RxLevel::Shallow;
  57 }
  58
  59 inline RxLevel rxRequiredCalleeLevel(RxLevel level) {
  60   assertx(rxEnforceCallsInLevel(level));
  61   switch (level) {
  62     case RxLevel::None:
  63     case RxLevel::Local:   not_reached();
  64     case RxLevel::Shallow: return RxLevel::Local;
  65     case RxLevel::Rx:      return RxLevel::Rx;
  66   }
  67   not_reached();
  68 }
  69
  70 ///////////////////////////////////////////////////////////////////////////////
  71 }