Files
boost_beast/include/boost/beast/http/impl/parser.ipp
T
Damian Jarek b76ab4450a New BodyReader and BodyWriter constructors (API Change):
fix #884

* BodyReader and BodyWriter constructors now require the header and
  body elements to be passed as distinct header and value_type objects.

This enables the composition of body types, for example:

    http::response<compressed_body<http::string_body>> res;

* The previous single-argument constructors are deprecated and will be
  removed in a subsequent version.

Actions Required:

* Change user-defined instances of BodyReader or BodyWriter constructor
  signatures to the two-argument form.

OR

* Define the macro BOOST_BEAST_ALLOW_DEPRECATED in the project (which
  will accept both the new and the deprecated signatures).
2017-12-15 09:27:39 -08:00

137 lines
3.8 KiB
C++

//
// Copyright (c) 2016-2017 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
//
#ifndef BOOST_BEAST_HTTP_IMPL_PARSER_IPP
#define BOOST_BEAST_HTTP_IMPL_PARSER_IPP
#include <boost/throw_exception.hpp>
#include <stdexcept>
namespace boost {
namespace beast {
namespace http {
template<bool isRequest, class Body, class Allocator>
parser<isRequest, Body, Allocator>::
parser()
: parser{detail::has_deprecated_body_reader<Body>{}}
{
}
template<bool isRequest, class Body, class Allocator>
parser<isRequest, Body, Allocator>::
parser(std::true_type)
: rd_(m_)
{
#ifndef BOOST_BEAST_ALLOW_DEPRECATED
// Deprecated BodyReader Concept (v1.66)
static_assert(sizeof(Body) == 0,
BOOST_BEAST_DEPRECATION_STRING);
#endif
}
template<bool isRequest, class Body, class Allocator>
parser<isRequest, Body, Allocator>::
parser(std::false_type)
: rd_(m_.base(), m_.body())
{
}
template<bool isRequest, class Body, class Allocator>
template<class Arg1, class... ArgN, class>
parser<isRequest, Body, Allocator>::
parser(Arg1&& arg1, ArgN&&... argn)
: parser(std::forward<Arg1>(arg1),
detail::has_deprecated_body_reader<Body>{},
std::forward<ArgN>(argn)...)
{
}
// VFALCO arg1 comes before `true_type` to make
// the signature unambiguous.
template<bool isRequest, class Body, class Allocator>
template<class Arg1, class... ArgN, class>
parser<isRequest, Body, Allocator>::
parser(Arg1&& arg1, std::true_type, ArgN&&... argn)
: m_(std::forward<Arg1>(arg1),
std::forward<ArgN>(argn)...)
, rd_(m_)
{
m_.clear();
#ifndef BOOST_BEAST_ALLOW_DEPRECATED
/* Deprecated BodyWriter Concept (v1.66) */
static_assert(sizeof(Body) == 0,
BOOST_BEAST_DEPRECATION_STRING);
#endif // BOOST_BEAST_ALLOW_DEPRECATED
}
// VFALCO arg1 comes before `false_type` to make
// the signature unambiguous.
template<bool isRequest, class Body, class Allocator>
template<class Arg1, class... ArgN, class>
parser<isRequest, Body, Allocator>::
parser(Arg1&& arg1, std::false_type, ArgN&&... argn)
: m_(std::forward<Arg1>(arg1),
std::forward<ArgN>(argn)...)
, rd_(m_.base(), m_.body())
{
m_.clear();
}
template<bool isRequest, class Body, class Allocator>
template<class OtherBody, class... Args, class>
parser<isRequest, Body, Allocator>::
parser(
parser<isRequest, OtherBody, Allocator>&& other,
Args&&... args)
: parser(detail::has_deprecated_body_reader<Body>{},
std::move(other), std::forward<Args>(args)...)
{
}
template<bool isRequest, class Body, class Allocator>
template<class OtherBody, class... Args, class>
parser<isRequest, Body, Allocator>::
parser(std::true_type,
parser<isRequest, OtherBody, Allocator>&& other,
Args&&... args)
: base_type(std::move(other))
, m_(other.release(), std::forward<Args>(args)...)
, rd_(m_)
{
if(other.rd_inited_)
BOOST_THROW_EXCEPTION(std::invalid_argument{
"moved-from parser has a body"});
#ifndef BOOST_BEAST_ALLOW_DEPRECATED
// Deprecated BodyReader Concept (v1.66)
static_assert(sizeof(Body) == 0,
BOOST_BEAST_DEPRECATION_STRING);
#endif
}
template<bool isRequest, class Body, class Allocator>
template<class OtherBody, class... Args, class>
parser<isRequest, Body, Allocator>::
parser(std::false_type, parser<isRequest, OtherBody, Allocator>&& other,
Args&&... args)
: base_type(std::move(other))
, m_(other.release(), std::forward<Args>(args)...)
, rd_(m_.base(), m_.body())
{
if(other.rd_inited_)
BOOST_THROW_EXCEPTION(std::invalid_argument{
"moved-from parser has a body"});
}
} // http
} // beast
} // boost
#endif