You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
2.6 KiB
63 lines
2.6 KiB
#ifndef Corrade_Containers_OptionalPythonBindings_h |
|
#define Corrade_Containers_OptionalPythonBindings_h |
|
/* |
|
This file is part of Magnum. |
|
|
|
Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, |
|
2020, 2021, 2022, 2023, 2024, 2025 |
|
Vladimír Vondruš <mosra@centrum.cz> |
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a |
|
copy of this software and associated documentation files (the "Software"), |
|
to deal in the Software without restriction, including without limitation |
|
the rights to use, copy, modify, merge, publish, distribute, sublicense, |
|
and/or sell copies of the Software, and to permit persons to whom the |
|
Software is furnished to do so, subject to the following conditions: |
|
|
|
The above copyright notice and this permission notice shall be included |
|
in all copies or substantial portions of the Software. |
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
|
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
|
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
|
DEALINGS IN THE SOFTWARE. |
|
*/ |
|
|
|
#include <pybind11/pybind11.h> |
|
#include <Corrade/Containers/Optional.h> |
|
|
|
namespace pybind11 { namespace detail { |
|
|
|
/* pybind11/stl.h has optional_caster for this, but that relies on a value_type |
|
typedef that Optional doesn't have, so adapting a copy of it, also without |
|
std::is_lvalue_reference<T>::value, which is not a thing here */ |
|
template<class T> struct type_caster<Corrade::Containers::Optional<T>> { |
|
using value_conv = make_caster<T>; |
|
|
|
template<class T_> static handle cast(T_&& src, const return_value_policy policy, const handle parent) { |
|
if(!src) return none{}.release(); |
|
return value_conv::cast(*std::forward<T_>(src), return_value_policy_override<T>::policy(policy), parent); |
|
} |
|
|
|
bool load(const handle src, bool convert) { |
|
if(!src) return false; |
|
|
|
/* default-constructed value is already empty */ |
|
if(src.is_none()) return true; |
|
|
|
value_conv inner_caster; |
|
if(!inner_caster.load(src, convert)) return false; |
|
|
|
value.emplace(cast_op<T&&>(std::move(inner_caster))); |
|
return true; |
|
} |
|
|
|
PYBIND11_TYPE_CASTER(Corrade::Containers::Optional<T>, _("Optional[") + value_conv::name + _("]")); |
|
}; |
|
|
|
}} |
|
|
|
#endif
|
|
|