1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef V8_ZONE_CONTAINERS_H_ 6 #define V8_ZONE_CONTAINERS_H_ 7 8 #include <deque> 9 #include <queue> 10 #include <vector> 11 12 #include "src/zone-allocator.h" 13 14 namespace v8 { 15 namespace internal { 16 17 // A wrapper subclass for std::vector to make it easy to construct one 18 // that uses a zone allocator. 19 template <typename T> 20 class ZoneVector : public std::vector<T, zone_allocator<T> > { 21 public: 22 // Constructs an empty vector. 23 explicit ZoneVector(Zone* zone) 24 : std::vector<T, zone_allocator<T> >(zone_allocator<T>(zone)) {} 25 26 // Constructs a new vector and fills it with {size} elements, each 27 // having the value {def}. 28 ZoneVector(int size, T def, Zone* zone) 29 : std::vector<T, zone_allocator<T> >(size, def, zone_allocator<T>(zone)) { 30 } 31 }; 32 33 // A wrapper subclass std::deque to make it easy to construct one 34 // that uses a zone allocator. 35 template <typename T> 36 class ZoneDeque : public std::deque<T, zone_allocator<T> > { 37 public: 38 explicit ZoneDeque(Zone* zone) 39 : std::deque<T, zone_allocator<T> >(zone_allocator<T>(zone)) {} 40 }; 41 42 // A wrapper subclass for std::queue to make it easy to construct one 43 // that uses a zone allocator. 44 template <typename T> 45 class ZoneQueue : public std::queue<T, std::deque<T, zone_allocator<T> > > { 46 public: 47 // Constructs an empty queue. 48 explicit ZoneQueue(Zone* zone) 49 : std::queue<T, std::deque<T, zone_allocator<T> > >( 50 std::deque<T, zone_allocator<T> >(zone_allocator<T>(zone))) {} 51 }; 52 53 // Typedefs to shorten commonly used vectors. 54 typedef ZoneVector<bool> BoolVector; 55 typedef ZoneVector<int> IntVector; 56 } } // namespace v8::internal 57 58 #endif // V8_ZONE_CONTAINERS_H_ 59
