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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_ZONE_CONTAINERS_H_
#define V8_ZONE_CONTAINERS_H_
#include <deque>
#include <list>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <vector>
#include "src/zone-allocator.h"
namespace v8 {
namespace internal {
// A wrapper subclass for std::vector to make it easy to construct one
// that uses a zone allocator.
template <typename T>
class ZoneVector : public std::vector<T, zone_allocator<T>> {
public:
// Constructs an empty vector.
explicit ZoneVector(Zone* zone)
: std::vector<T, zone_allocator<T>>(zone_allocator<T>(zone)) {}
// Constructs a new vector and fills it with {size} elements, each
// constructed via the default constructor.
ZoneVector(size_t size, Zone* zone)
: std::vector<T, zone_allocator<T>>(size, T(), zone_allocator<T>(zone)) {}
// Constructs a new vector and fills it with {size} elements, each
// having the value {def}.
ZoneVector(size_t size, T def, Zone* zone)
: std::vector<T, zone_allocator<T>>(size, def, zone_allocator<T>(zone)) {}
};
// A wrapper subclass std::deque to make it easy to construct one
// that uses a zone allocator.
template <typename T>
class ZoneDeque : public std::deque<T, zone_allocator<T>> {
public:
// Constructs an empty deque.
explicit ZoneDeque(Zone* zone)
: std::deque<T, zone_allocator<T>>(zone_allocator<T>(zone)) {}
};
// A wrapper subclass std::list to make it easy to construct one
// that uses a zone allocator.
// TODO(mstarzinger): This should be renamed to ZoneList once we got rid of our
// own home-grown ZoneList that actually is a ZoneVector.
template <typename T>
class ZoneLinkedList : public std::list<T, zone_allocator<T>> {
public:
// Constructs an empty list.
explicit ZoneLinkedList(Zone* zone)
: std::list<T, zone_allocator<T>>(zone_allocator<T>(zone)) {}
};
// A wrapper subclass std::priority_queue to make it easy to construct one
// that uses a zone allocator.
template <typename T, typename Compare = std::less<T>>
class ZonePriorityQueue
: public std::priority_queue<T, ZoneVector<T>, Compare> {
public:
// Constructs an empty list.
explicit ZonePriorityQueue(Zone* zone)
: std::priority_queue<T, ZoneVector<T>, Compare>(Compare(),
ZoneVector<T>(zone)) {}
};
// A wrapper subclass for std::queue to make it easy to construct one
// that uses a zone allocator.
template <typename T>
class ZoneQueue : public std::queue<T, ZoneDeque<T>> {
public:
// Constructs an empty queue.
explicit ZoneQueue(Zone* zone)
: std::queue<T, ZoneDeque<T>>(ZoneDeque<T>(zone)) {}
};
// A wrapper subclass for std::stack to make it easy to construct one that uses
// a zone allocator.
template <typename T>
class ZoneStack : public std::stack<T, ZoneDeque<T>> {
public:
// Constructs an empty stack.
explicit ZoneStack(Zone* zone)
: std::stack<T, ZoneDeque<T>>(ZoneDeque<T>(zone)) {}
};
// A wrapper subclass for std::set to make it easy to construct one that uses
// a zone allocator.
template <typename K, typename Compare = std::less<K>>
class ZoneSet : public std::set<K, Compare, zone_allocator<K>> {
public:
// Constructs an empty set.
explicit ZoneSet(Zone* zone)
: std::set<K, Compare, zone_allocator<K>>(Compare(),
zone_allocator<K>(zone)) {}
};
// A wrapper subclass for std::map to make it easy to construct one that uses
// a zone allocator.
template <typename K, typename V, typename Compare = std::less<K>>
class ZoneMap
: public std::map<K, V, Compare, zone_allocator<std::pair<const K, V>>> {
public:
// Constructs an empty map.
explicit ZoneMap(Zone* zone)
: std::map<K, V, Compare, zone_allocator<std::pair<const K, V>>>(
Compare(), zone_allocator<std::pair<const K, V>>(zone)) {}
};
// Typedefs to shorten commonly used vectors.
typedef ZoneVector<bool> BoolVector;
typedef ZoneVector<int> IntVector;
} // namespace internal
} // namespace v8
#endif // V8_ZONE_CONTAINERS_H_
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