diff options
Diffstat (limited to 'deps/v8/src/zone/zone-containers.h')
| -rw-r--r-- | deps/v8/src/zone/zone-containers.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/deps/v8/src/zone/zone-containers.h b/deps/v8/src/zone/zone-containers.h index f399899464..78d25cc644 100644 --- a/deps/v8/src/zone/zone-containers.h +++ b/deps/v8/src/zone/zone-containers.h @@ -12,8 +12,11 @@ #include <queue> #include <set> #include <stack> +#include <unordered_map> +#include <unordered_set> #include <vector> +#include "src/base/functional.h" #include "src/zone/zone-allocator.h" namespace v8 { @@ -133,6 +136,35 @@ class ZoneMap Compare(), ZoneAllocator<std::pair<const K, V>>(zone)) {} }; +// A wrapper subclass for std::unordered_map to make it easy to construct one +// that uses a zone allocator. +template <typename K, typename V, typename Hash = base::hash<K>, + typename KeyEqual = std::equal_to<K>> +class ZoneUnorderedMap + : public std::unordered_map<K, V, Hash, KeyEqual, + ZoneAllocator<std::pair<const K, V>>> { + public: + // Constructs an empty map. + explicit ZoneUnorderedMap(Zone* zone) + : std::unordered_map<K, V, Hash, KeyEqual, + ZoneAllocator<std::pair<const K, V>>>( + 100, Hash(), KeyEqual(), + ZoneAllocator<std::pair<const K, V>>(zone)) {} +}; + +// A wrapper subclass for std::unordered_set to make it easy to construct one +// that uses a zone allocator. +template <typename K, typename Hash = base::hash<K>, + typename KeyEqual = std::equal_to<K>> +class ZoneUnorderedSet + : public std::unordered_set<K, Hash, KeyEqual, ZoneAllocator<K>> { + public: + // Constructs an empty map. + explicit ZoneUnorderedSet(Zone* zone) + : std::unordered_set<K, Hash, KeyEqual, ZoneAllocator<K>>( + 100, Hash(), KeyEqual(), ZoneAllocator<K>(zone)) {} +}; + // A wrapper subclass for std::multimap to make it easy to construct one that // uses a zone allocator. template <typename K, typename V, typename Compare = std::less<K>> |