hphp/runtime/base/type-structure.h

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-2015 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_TYPE_STRUCTURE_H
  18 #define incl_HPHP_TYPE_STRUCTURE_H
  19
  20 #include <cstdint>
  21
  22 namespace HPHP {
  23
  24 struct String;
  25 struct ArrayData;
  26 struct Class;
  27
  28 /* Utility for representing full type information in the runtime. */
  29 namespace TypeStructure {
  30
  31 // These values are exposed to the user in
  32 // hphp/runtime/ext/reflection/ext_reflection-TypeInfo.php
  33 enum class Kind : uint8_t {
  34   T_void = 0,
  35   T_int = 1,
  36   T_bool = 2,
  37   T_float = 3,
  38   T_string = 4,
  39   T_resource = 5,
  40   T_num = 6,
  41   T_arraykey = 7,
  42   T_noreturn = 8,
  43   T_mixed = 9,
  44   T_tuple = 10,
  45   T_fun = 11,
  46   T_array = 12,
  47   T_typevar = 13, // corresponds to user OF_GENERIC
  48   T_shape = 14,
  49
  50   // These values are only used after resolution in ext_reflection.cpp
  51   T_class = 15,
  52   T_interface = 16,
  53   T_trait = 17,
  54   T_enum = 18,
  55
  56   /* TODO(7657500): the following kinds needs alias resolution, and
  57    * are not exposed to the users. Could resolve to a class, enum,
  58    * interface, or alias. */
  59   T_unresolved = 101,
  60   T_typeaccess = 102,
  61   T_xhp = 103,
  62 };
  63
  64 String toString(const ArrayData* arr);
  65
  66 ArrayData* resolve(ArrayData* arr, const Class* typeCstCls);
  67
  68 }
  69
  70 }
  71
  72 #endif