/usr/include/caf/detail/try_match.hpp is in libcaf-dev 0.13.2-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright (C) 2011 - 2015 *
* Dominik Charousset <dominik.charousset (at) haw-hamburg.de> *
* *
* Distributed under the terms and conditions of the BSD 3-Clause License or *
* (at your option) under the terms and conditions of the Boost Software *
* License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE. *
* *
* If you did not receive a copy of the license files, see *
* http://opensource.org/licenses/BSD-3-Clause and *
* http://www.boost.org/LICENSE_1_0.txt. *
******************************************************************************/
#ifndef CAF_DETAIL_TRY_MATCH_HPP
#define CAF_DETAIL_TRY_MATCH_HPP
#include <array>
#include <numeric>
#include <typeinfo>
#include "caf/atom.hpp"
#include "caf/message.hpp"
#include "caf/uniform_typeid.hpp"
#include "caf/detail/type_nr.hpp"
#include "caf/detail/type_list.hpp"
#include "caf/detail/pseudo_tuple.hpp"
namespace caf {
namespace detail {
struct meta_element {
atom_value v;
uint16_t typenr;
const std::type_info* type;
bool (*fun)(const meta_element&, const message&, size_t, void**);
};
bool match_element(const meta_element&, const message&, size_t, void**);
bool match_atom_constant(const meta_element&, const message&, size_t, void**);
template <class T, uint16_t TN = detail::type_nr<T>::value>
struct meta_element_factory {
static meta_element create() {
return {static_cast<atom_value>(0), TN, nullptr, match_element};
}
};
template <class T>
struct meta_element_factory<T, 0> {
static meta_element create() {
return {static_cast<atom_value>(0), 0, &typeid(T), match_element};
}
};
template <atom_value V>
struct meta_element_factory<atom_constant<V>, type_nr<atom_value>::value> {
static meta_element create() {
return {V, detail::type_nr<atom_value>::value,
nullptr, match_atom_constant};
}
};
template <>
struct meta_element_factory<anything, 0> {
static meta_element create() {
return {static_cast<atom_value>(0), 0, nullptr, nullptr};
}
};
template <class TypeList>
struct meta_elements;
template <class... Ts>
struct meta_elements<type_list<Ts...>> {
std::array<meta_element, sizeof...(Ts)> arr;
meta_elements() : arr{{meta_element_factory<Ts>::create()...}} {
// nop
}
};
bool try_match(const message& msg, const meta_element* pattern_begin,
size_t pattern_size, void** out);
} // namespace detail
} // namespace caf
#endif // CAF_DETAIL_TRY_MATCH_HPP
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