/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
// Use stl-like empty propagation to avoid issues with wrapping closures which // implicitly coerce to bool. #define FU2_WITH_LIMITED_EMPTY_PROPAGATION
#include"function2/function2.hpp"
namespace mozilla {
/// A type like `std::function`, but with support for move-only callable /// objects. /// /// A similar type is proposed to be added to the standard library as /// `std::move_only_function` in C++23. /// /// Unlike `std::function`, the function signature may be given const or /// reference qualifiers which will be applied to `operator()`. This can be used /// to declare const qualified or move-only functions. /// /// The implementation this definition depends on (function2) also has support /// for callables with overload sets, however support for this was not exposed /// to align better with the proposed `std::move_only_function`, which does not /// support overload sets. /// /// A custom typedef over `fu2::function_base` is used to control the size and /// alignment of the inline storage to store 2 aligned pointers, and ensure the /// type is compatible with `nsTArray`. template <typename Signature> using MoveOnlyFunction = fu2::function_base< /* IsOwning */ true, /* IsCopyable */ false, /* Capacity */ fu2::capacity_fixed<2 * sizeof(void*), alignof(void*)>, /* IsThrowing */ false, /* HasStrongExceptionGuarantee */ false, /* Signature */ Signature>;
} // namespace mozilla
#endif// mozilla_MoveOnlyFunction_h
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(vorverarbeitet am 2026-06-05)
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