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| author | Matt A. Tobin <email@mattatobin.com> | 2020-11-09 21:10:53 -0500 |
|---|---|---|
| committer | Moonchild <moonchild@palemoon.org> | 2020-11-18 10:54:04 +0000 |
| commit | d7df9b336ae34ff4c4b64f7aa4e0be2579c95ece (patch) | |
| tree | 5b4bc568f53620acdbdd7c45824f91f36d57a99c /js | |
| parent | 6c1b1bd18f2830a2f71027f9b3060200acfd4061 (diff) | |
| download | UXP-d7df9b336ae34ff4c4b64f7aa4e0be2579c95ece.tar UXP-d7df9b336ae34ff4c4b64f7aa4e0be2579c95ece.tar.gz UXP-d7df9b336ae34ff4c4b64f7aa4e0be2579c95ece.tar.lz UXP-d7df9b336ae34ff4c4b64f7aa4e0be2579c95ece.tar.xz UXP-d7df9b336ae34ff4c4b64f7aa4e0be2579c95ece.zip | |
Bug 1328948 - Add is(), as() to Cell.
Tag #1679
Diffstat (limited to 'js')
| -rw-r--r-- | js/src/gc/Heap.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/js/src/gc/Heap.h b/js/src/gc/Heap.h index 697803380..7f2c5fb4f 100644 --- a/js/src/gc/Heap.h +++ b/js/src/gc/Heap.h @@ -29,6 +29,7 @@ #include "js/HeapAPI.h" #include "js/RootingAPI.h" #include "js/TracingAPI.h" +#include "js/TraceKind.h" struct JSRuntime; @@ -273,6 +274,23 @@ struct Cell static MOZ_ALWAYS_INLINE bool needWriteBarrierPre(JS::Zone* zone); + template <class T> + inline bool is() const { + return getTraceKind() == JS::MapTypeToTraceKind<T>::kind; + } + + template<class T> + inline T* as() { + MOZ_ASSERT(is<T>()); + return static_cast<T*>(this); + } + + template <class T> + inline const T* as() const { + MOZ_ASSERT(is<T>()); + return static_cast<const T*>(this); + } + #ifdef DEBUG inline bool isAligned() const; void dump(FILE* fp) const; |