# Copyright (c) Meta Platforms, Inc. and affiliates.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

cdef extern from "folly/Optional.h" namespace "folly" nogil:
    cdef cppclass cOptional "folly::Optional"[T]:
        cOptional()
        cOptional(T val)
        bint has_value()
        T value()
        T value_or(T&& altValue)
        T* get_pointer()
        void reset()
        void assign(T&& newValue)

    cOptional[T] make_optional[T](...) except +
