ladybird/Userland/Libraries/LibJS/Runtime/Set.h
Timothy Flynn 2692db8699 LibJS+Everywhere: Allow Cell::initialize overrides to throw OOM errors
Note that as of this commit, there aren't any such throwers, and the
call site in Heap::allocate will drop exceptions on the floor. This
commit only serves to change the declaration of the overrides, make sure
they return an empty value, and to propagate OOM errors frm their base
initialize invocations.
2023-01-29 00:02:45 +00:00

49 lines
1.4 KiB
C++

/*
* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Map.h>
#include <LibJS/Runtime/Object.h>
#include <LibJS/Runtime/Value.h>
namespace JS {
class Set : public Object {
JS_OBJECT(Set, Object);
public:
static NonnullGCPtr<Set> create(Realm&);
virtual ThrowCompletionOr<void> initialize(Realm&) override;
virtual ~Set() override = default;
// NOTE: Unlike what the spec says, we implement Sets using an underlying map,
// so all the functions below do not directly implement the operations as
// defined by the specification.
void set_clear() { m_values->map_clear(); }
bool set_remove(Value const& value) { return m_values->map_remove(value); }
bool set_has(Value const& key) const { return m_values->map_has(key); }
void set_add(Value const& key) { m_values->map_set(key, js_undefined()); }
size_t set_size() const { return m_values->map_size(); }
auto begin() const { return const_cast<Map const&>(*m_values).begin(); }
auto begin() { return m_values->begin(); }
auto end() const { return m_values->end(); }
NonnullGCPtr<Set> copy() const;
private:
explicit Set(Object& prototype);
virtual void visit_edges(Visitor& visitor) override;
GCPtr<Map> m_values;
};
}