ladybird/Userland/Libraries/LibJS/Runtime/MapIterator.cpp
Linus Groh b84f8fb55b LibJS: Make intrinsics getters return NonnullGCPtr
Some of these are allocated upon initialization of the intrinsics, and
some lazily, but in neither case the getters actually return a nullptr.

This saves us a whole bunch of pointer dereferences (as NonnullGCPtr has
an `operator T&()`), and also has the interesting side effect of forcing
us to explicitly use the FunctionObject& overload of call(), as passing
a NonnullGCPtr is ambigous - it could implicitly be turned into a Value
_or_ a FunctionObject& (so we have to dereference manually).
2023-04-13 14:29:42 +02:00

31 lines
890 B
C++

/*
* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/MapIterator.h>
namespace JS {
NonnullGCPtr<MapIterator> MapIterator::create(Realm& realm, Map& map, Object::PropertyKind iteration_kind)
{
return realm.heap().allocate<MapIterator>(realm, map, iteration_kind, realm.intrinsics().map_iterator_prototype()).release_allocated_value_but_fixme_should_propagate_errors();
}
MapIterator::MapIterator(Map& map, Object::PropertyKind iteration_kind, Object& prototype)
: Object(ConstructWithPrototypeTag::Tag, prototype)
, m_map(map)
, m_iteration_kind(iteration_kind)
, m_iterator(static_cast<Map const&>(map).begin())
{
}
void MapIterator::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_map);
}
}