1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2  * vim: set ts=8 sts=2 et sw=2 tw=80:
3  * This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 /* Shadow definition of |JS::Symbol| innards.  Do not use this directly! */
8 
9 #ifndef js_shadow_Symbol_h
10 #define js_shadow_Symbol_h
11 
12 #include <stdint.h>  // uint32_t
13 
14 namespace js {
15 namespace gc {
16 struct Cell;
17 }  // namespace gc
18 }  // namespace js
19 
20 namespace JS {
21 
22 namespace shadow {
23 
24 struct Symbol {
25   void* _1;
26   uint32_t code_;
27   static constexpr uint32_t WellKnownAPILimit = 0x80000000;
28 
isWellKnownSymbolSymbol29   static bool isWellKnownSymbol(const js::gc::Cell* cell) {
30     return reinterpret_cast<const Symbol*>(cell)->code_ < WellKnownAPILimit;
31   }
32 };
33 
34 }  // namespace shadow
35 
36 }  // namespace JS
37 
38 #endif  // js_shadow_Symbol_h
39