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// Copyright 2019 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_ZONE_SPLAY_TREE_H_
#define V8_ZONE_ZONE_SPLAY_TREE_H_
#include "src/utils/splay-tree.h"
#include "src/zone/zone.h"
namespace v8 {
namespace internal {
// A zone splay tree. The config type parameter encapsulates the
// different configurations of a concrete splay tree (see splay-tree.h).
// The tree itself and all its elements are allocated in the Zone.
template <typename Config>
class ZoneSplayTree final : public SplayTree<Config, ZoneAllocationPolicy> {
public:
explicit ZoneSplayTree(Zone* zone)
: SplayTree<Config, ZoneAllocationPolicy>(ZoneAllocationPolicy(zone)) {}
~ZoneSplayTree() {
// Reset the root to avoid unneeded iteration over all tree nodes
// in the destructor. For a zone-allocated tree, nodes will be
// freed by the Zone.
SplayTree<Config, ZoneAllocationPolicy>::ResetRoot();
}
void* operator new(size_t size, Zone* zone) { return zone->New(size); }
void operator delete(void* pointer) { UNREACHABLE(); }
void operator delete(void* pointer, Zone* zone) { UNREACHABLE(); }
};
} // namespace internal
} // namespace v8
#endif // V8_ZONE_ZONE_SPLAY_TREE_H_
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