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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "off-heap-collections-of-gced.h"
namespace blink {
class WithCollections : public GarbageCollected<WithCollections> {
public:
virtual void Trace(Visitor* v) const {
(void)set_;
(void)vector_;
(void)map_key_;
(void)map_value_;
(void)set_ptr_;
(void)vector_ref_;
(void)map_const_;
(void)vector_pair_;
(void)ignored_set_;
(void)array_;
(void)array_of_vectors_;
v->Trace(heap_hash_set_);
v->Trace(heap_deque_);
v->Trace(heap_vector_);
v->Trace(heap_linked_hash_set_);
v->Trace(heap_hash_counted_set_);
v->Trace(heap_hash_map_key_);
v->Trace(heap_hash_map_value_);
// The following calls are not needed and are added merely to silence false
// untraced field errors.
v->Trace(wtf_hash_set_);
v->Trace(wtf_deque_);
v->Trace(wtf_vector_);
v->Trace(wtf_hash_map_key_);
v->Trace(wtf_hash_map_value_);
}
private:
// Bad stl collections:
std::set<Base> set_;
std::vector<Derived> vector_;
std::map<Mixin, int> map_key_;
std::unordered_map<int, Base> map_value_;
std::unordered_set<Base*> set_ptr_;
std::vector<Derived&> vector_ref_;
std::map<const Mixin, int> map_const_;
std::vector<std::pair<Base, int>> vector_pair_;
std::array<Base, 4> array_;
std::array<HeapVector<Base>, 4> array_of_vectors_;
// Bad WTF collections:
WTF::HashSet<Base> wtf_hash_set_;
WTF::Deque<Derived> wtf_deque_;
WTF::Vector<Mixin> wtf_vector_;
WTF::LinkedHashSet<Base*> wtf_linked_hash_set_;
WTF::HashCountedSet<Derived&> wtf_hash_counted_set_;
WTF::HashMap<Mixin, bool> wtf_hash_map_key_;
WTF::HashMap<double, const Base> wtf_hash_map_value_;
// Good collections:
blink::HeapHashSet<Base> heap_hash_set_;
blink::HeapDeque<Derived> heap_deque_;
blink::HeapVector<Mixin> heap_vector_;
blink::HeapLinkedHashSet<Base> heap_linked_hash_set_;
blink::HeapHashCountedSet<Derived> heap_hash_counted_set_;
blink::HeapHashMap<Mixin, bool> heap_hash_map_key_;
blink::HeapHashMap<double, Base> heap_hash_map_value_;
GC_PLUGIN_IGNORE("For testing")
std::set<Base> ignored_set_;
};
class StackAllocated {
STACK_ALLOCATED();
public:
StackAllocated() {
(void)array_;
(void)array_of_vectors_;
}
private:
std::array<Base, 4> array_;
std::array<HeapVector<Base>, 4> array_of_vectors_;
};
void DisallowedUseOfCollections() {
// Bad stl collections:
std::set<Base> set;
(void)set;
std::vector<Derived> vector;
(void)vector;
std::map<Mixin, int> map_key;
(void)map_key;
std::unordered_map<int, Base> map_value;
(void)map_value;
std::unordered_set<Base*> set_ptr;
(void)set_ptr;
std::vector<Derived&> vector_ref;
(void)vector_ref;
std::map<const Mixin, int> map_const;
(void)map_const;
std::vector<std::pair<Base, int>> vector_pair;
(void)vector_pair;
// Bad WTF collections:
WTF::HashSet<Base> wtf_hash_set;
WTF::Deque<Derived> wtf_deque;
WTF::Vector<Mixin> wtf_vector;
WTF::LinkedHashSet<Base*> wtf_linked_hash_set;
WTF::HashCountedSet<Derived&> wtf_hash_counted_set;
WTF::HashMap<Mixin, bool> wtf_hash_map_key;
WTF::HashMap<double, const Base> wtf_hash_map_value;
// Good collections:
blink::HeapHashSet<Base> heap_hash_set;
blink::HeapDeque<Derived> heap_deque;
blink::HeapVector<Mixin> heap_vector;
blink::HeapLinkedHashSet<Base> heap_linked_hash_set;
blink::HeapHashCountedSet<Derived> heap_hash_counted_set;
blink::HeapHashMap<Mixin, bool> heap_hash_map_key;
blink::HeapHashMap<double, Base> heap_hash_map_value;
std::array<Base, 4> array;
(void)array;
std::array<HeapVector<Base>, 4> array_of_vectors;
(void)array_of_vectors;
GC_PLUGIN_IGNORE("For testing")
std::set<Base> ignored_set;
(void)ignored_set;
}
} // namespace blink
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