ladybird/Libraries/LibGC/Function.h
Andrew Kaster 2f38c83caf LibGC: Mark GC::Function and create_function as ESCAPING
Whenever we create a GC function, it should always be so that we can
pass it to a platform event loop spin, HTML event loop spin, or some
queued task on the HTML event loop. For every use case, any local
variables will be out of scope by the time the function executes.
2024-12-10 07:13:00 +01:00

50 lines
1.1 KiB
C++

/*
* Copyright (c) 2023, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Function.h>
#include <LibGC/Cell.h>
#include <LibGC/Heap.h>
namespace GC {
template<typename T>
class Function final : public Cell {
GC_CELL(Function, Cell);
public:
static Ref<Function> create(Heap& heap, ESCAPING AK::Function<T> function)
{
return heap.allocate<Function>(move(function));
}
virtual ~Function() override = default;
[[nodiscard]] AK::Function<T> const& function() const { return m_function; }
private:
Function(AK::Function<T> function)
: m_function(move(function))
{
}
virtual void visit_edges(Visitor& visitor) override
{
Base::visit_edges(visitor);
visitor.visit_possible_values(m_function.raw_capture_range());
}
AK::Function<T> m_function;
};
template<typename Callable, typename T = EquivalentFunctionType<Callable>>
static Ref<Function<T>> create_function(Heap& heap, ESCAPING Callable&& function)
{
return Function<T>::create(heap, AK::Function<T> { forward<Callable>(function) });
}
}