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Bug 1441059 - Add cycle collection implementations for Maybe. r=bz

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This commit is contained in:
Dylan Roeh 2018-07-17 10:34:58 -05:00
parent 04bf64da6a
commit 5fa70ba038
1 changed files with 24 additions and 0 deletions
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24
mfbt/Maybe.h
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@ -22,6 +22,8 @@
#include <ostream> #include <ostream>
#include <type_traits> #include <type_traits>
class nsCycleCollectionTraversalCallback;
namespace mozilla { namespace mozilla {
struct Nothing { }; struct Nothing { };
@ -713,6 +715,28 @@ operator>=(const Maybe<T>& aLHS, const Maybe<T>& aRHS)
return !(aLHS < aRHS); return !(aLHS < aRHS);
} }
template<typename T>
void
ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& aCallback,
Maybe<T>& aMaybe,
const char* aName,
uint32_t aFlags = 0)
{
if (aMaybe.isSome()) {
ImplCycleCollectionTraverse(aCallback, aMaybe.ref(), aName, aFlags);
}
}
template<typename T>
void
ImplCycleCollectionUnlink(Maybe<T>& aMaybe)
{
if (aMaybe.isSome()) {
ImplCycleCollectionUnlink(aMaybe.ref());
}
}
} // namespace mozilla } // namespace mozilla
#endif /* mozilla_Maybe_h */ #endif /* mozilla_Maybe_h */