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Add C++20 module support #3068

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10 changes: 10 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,7 @@ if (BOOST_BEAST_IS_ROOT)
endif ()
option(BOOST_BEAST_BUILD_TESTS "Build boost::beast tests" ${BUILD_TESTING})
option(BOOST_BEAST_BUILD_FUZZERS "Build boost::beast fuzzers" OFF)
option(BOOST_BEAST_EXPERIMENTAL_MODULE "Build experimental boost.beast C++20 module" OFF)
option(BOOST_BEAST_BUILD_EXAMPLES "Build boost::beast examples" ${BOOST_BEAST_IS_ROOT})
option(BOOST_BEAST_WARNINGS_AS_ERRORS "Treat warnings as errors" OFF)

Expand Down Expand Up @@ -163,6 +164,15 @@ if (BOOST_BEAST_BUILD_TESTS)
add_subdirectory(test)
endif ()

#-------------------------------------------------
#
# Module
#
#-------------------------------------------------
if (BOOST_BEAST_EXPERIMENTAL_MODULE)
add_subdirectory(modules)
endif ()

#-------------------------------------------------
#
# Examples
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22 changes: 22 additions & 0 deletions modules/CMakeLists.txt
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@@ -0,0 +1,22 @@
#
# Copyright (c) 2016-2026 Vinnie Falco (vinnie dot falco at gmail dot com)
#
# Distributed under the Boost Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#
# Official repository: https://github.com/boostorg/beast
#

add_library(boost_beast_module)

target_sources(boost_beast_module
PUBLIC
FILE_SET CXX_MODULES FILES
boost_beast.cppm
)

target_compile_features(boost_beast_module PUBLIC cxx_std_20)

target_link_libraries(boost_beast_module PUBLIC Boost::beast)

add_library(Boost::beast_module ALIAS boost_beast_module)
250 changes: 250 additions & 0 deletions modules/boost_beast.cppm
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//
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// Copyright (c) 2016-2026 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/boostorg/beast
//

module;

#include <boost/beast.hpp>
#include <boost/beast/core/buffer_traits.hpp>
#include <boost/beast/_experimental/http/icy_stream.hpp>
#include <boost/beast/_experimental/test/error.hpp>
#include <boost/beast/_experimental/test/fail_count.hpp>
#include <boost/beast/_experimental/test/handler.hpp>
#include <boost/beast/_experimental/test/stream.hpp>

export module boost.beast;

export namespace boost::beast {
using boost::beast::async_base;
using boost::beast::basic_stream;
using boost::beast::file;
using boost::beast::file_mode;
#if BOOST_BEAST_USE_POSIX_FILE
using boost::beast::file_posix;
#endif
using boost::beast::file_stdio;
#if BOOST_BEAST_USE_WIN32_FILE
using boost::beast::file_win32;
#endif
using boost::beast::flat_stream;
using boost::beast::iequal;
using boost::beast::iless;
using boost::beast::rate_policy_access;
using boost::beast::saved_handler;
using boost::beast::simple_rate_policy;
using boost::beast::static_string;
using boost::beast::stable_async_base;
using boost::beast::string_view;
using boost::beast::tcp_stream;
using boost::beast::unlimited_rate_policy;

using boost::beast::condition;
using boost::beast::error;
using boost::beast::file_mode;
using boost::beast::role_type;

using boost::beast::allocate_stable;
using boost::beast::async_detect_ssl;
using boost::beast::beast_close_socket;
using boost::beast::bind_front_handler;
using boost::beast::bind_handler;

template <class Socket>
inline void close_socket(Socket& sock) {
boost::beast::close_socket(sock);
}

using boost::beast::detect_ssl;
using boost::beast::generic_category;
using boost::beast::get_lowest_layer;
using boost::beast::iequals;
using boost::beast::to_static_string;

using boost::beast::executor_type;
using boost::beast::has_get_executor;
using boost::beast::is_async_read_stream;
using boost::beast::is_async_stream;
using boost::beast::is_async_write_stream;

using boost::beast::is_file;
using boost::beast::is_sync_read_stream;
using boost::beast::is_sync_stream;
using boost::beast::is_sync_write_stream;
// using boost::beast::lowest_layer_type;

// using boost::beast::ssl_stream;

namespace errc = boost::beast::errc;
using boost::beast::error_category;
using boost::beast::error_code;
using boost::beast::error_condition;
using boost::beast::system_category;
using boost::beast::system_error;

using boost::beast::basic_flat_buffer;
using boost::beast::basic_multi_buffer;
// using boost::beast::buffer_ref;
using boost::beast::buffered_read_stream;
using boost::beast::buffers_adaptor;
using boost::beast::buffers_cat_view;
using boost::beast::buffers_prefix_view;
using boost::beast::buffers_prefix_view;
using boost::beast::buffers_suffix;
using boost::beast::flat_buffer;
using boost::beast::flat_static_buffer;
using boost::beast::flat_static_buffer_base;
using boost::beast::multi_buffer;
using boost::beast::static_buffer;
using boost::beast::static_buffer_base;

using boost::beast::async_write;

template <class BufferSequence>
[[nodiscard]]
inline std::size_t buffer_bytes(BufferSequence const& buffers) {
return boost::beast::buffer_bytes(buffers);
}

using boost::beast::buffers_cat;
using boost::beast::buffers_front;
using boost::beast::buffers_prefix;
using boost::beast::buffers_range;
using boost::beast::buffers_range_ref;
using boost::beast::buffers_to_string;
using boost::beast::make_printable;
using boost::beast::ostream;
using boost::beast::read_size;
using boost::beast::read_size_or_throw;
// using boost::beast::ref;
using boost::beast::write;

using boost::beast::buffers_iterator_type;
// using boost::beast::buffers_type;
using boost::beast::is_buffers_generator;
// using boost::beast::is_const_buffer_sequence;
// using boost::beast::is_mutable_buffer_sequence;

namespace http {
using boost::beast::http::basic_chunk_extensions;
using boost::beast::http::basic_dynamic_body;
using boost::beast::http::basic_fields;
using boost::beast::http::basic_file_body;
using boost::beast::http::basic_parser;
using boost::beast::http::basic_string_body;
using boost::beast::http::buffer_body;
using boost::beast::http::chunk_body;
using boost::beast::http::chunk_crlf;
using boost::beast::http::chunk_extensions;
using boost::beast::http::chunk_header;
using boost::beast::http::chunk_last;
using boost::beast::http::dynamic_body;
using boost::beast::http::empty_body;
using boost::beast::http::fields;
using boost::beast::http::file_body;
using boost::beast::http::header;
using boost::beast::http::message;
using boost::beast::http::message_generator;
using boost::beast::http::parser;
using boost::beast::http::request;
using boost::beast::http::request_header;
using boost::beast::http::request_serializer;
using boost::beast::http::response;
using boost::beast::http::response_header;
using boost::beast::http::response_parser;
using boost::beast::http::response_serializer;
using boost::beast::http::serializer;
using boost::beast::http::span_body;
using string_body = boost::beast::http::basic_string_body<char>;
using boost::beast::http::vector_body;

using boost::beast::http::async_read;
using boost::beast::http::async_read_header;
using boost::beast::http::async_read_some;
using boost::beast::http::async_write;
using boost::beast::http::async_write_header;
using boost::beast::http::async_write_some;
using boost::beast::http::int_to_status;
using boost::beast::http::make_chunk;
using boost::beast::http::make_chunk_last;
using boost::beast::http::obsolete_reason;
using boost::beast::http::operator<<;
using boost::beast::http::read;
using boost::beast::http::read_header;
using boost::beast::http::read_some;
using boost::beast::http::string_to_field;
using boost::beast::http::string_to_verb;
using boost::beast::http::swap;
using boost::beast::http::to_string;
using boost::beast::http::to_status_class;
using boost::beast::http::write;
using boost::beast::http::write_header;
using boost::beast::http::write_some;

using boost::beast::http::error;
using boost::beast::http::field;
using boost::beast::http::status;
using boost::beast::http::status_class;
using boost::beast::http::verb;

// using boost::beast::http::is_body;
using boost::beast::http::is_body_reader;
using boost::beast::http::is_body_writer;
using boost::beast::http::is_fields;
using boost::beast::http::is_mutable_body_writer;

using boost::beast::http::ext_list;
using boost::beast::http::opt_token_list;
using boost::beast::http::param_list;
using boost::beast::http::token_list;
}

namespace websocket {
using boost::beast::websocket::close_reason;
using ping_data = boost::beast::static_string<125, char>;
using boost::beast::websocket::stream;
using boost::beast::websocket::stream_base;
using reason_string = boost::beast::static_string<123, char>;

using boost::beast::websocket::async_teardown;
using boost::beast::websocket::is_upgrade;
using boost::beast::websocket::seed_prng;
using boost::beast::websocket::teardown;

using boost::beast::websocket::permessage_deflate;

using boost::beast::websocket::close_code;
using boost::beast::websocket::condition;
using boost::beast::websocket::error;
using boost::beast::websocket::frame_type;
}

namespace zlib {
using boost::beast::zlib::deflate_stream;
using boost::beast::zlib::inflate_stream;
using boost::beast::zlib::z_params;
using boost::beast::zlib::deflate_upper_bound;
using boost::beast::zlib::error;
using boost::beast::zlib::Flush;
using boost::beast::zlib::Strategy;
}

namespace http {
using boost::beast::http::icy_stream;
}

namespace test {
using boost::beast::test::fail_count;
using boost::beast::test::handler;
// using boost::beast::test::stream;
using boost::beast::test::connect;
using boost::beast::test::any_handler;
using boost::beast::test::fail_handler;
using boost::beast::test::success_handler;
using boost::beast::test::error;
}
}