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
14namespace v8 {
15namespace internal {
16
17// A wrapper subclass for std::vector to make it easy to construct one
18// that uses a zone allocator.
19template <typename T>
20class 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.
35template <typename T>
36class 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.
44template <typename T>
45class 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.
54typedef ZoneVector<bool> BoolVector;
55typedef ZoneVector<int> IntVector;
56} }  // namespace v8::internal
57
58#endif  // V8_ZONE_CONTAINERS_H_
59