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https://github.com/matrix-construct/construct
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ircd::rfc1459: Reorg grammar instantiations; visibility; initialization issues.
This commit is contained in:
Jason Volk
parent
eb43826d99
commit
246ae05881
1 changed files with 116 additions and 97 deletions
213
ircd/rfc1459.cc
213
ircd/rfc1459.cc
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@ -13,22 +13,30 @@ namespace ircd::rfc1459
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using namespace ircd::spirit;
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}
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namespace ircd { namespace rfc1459 { namespace parse
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__attribute__((visibility("hidden")))
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#pragma GCC visibility push(internal)
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namespace ircd::rfc1459::parse
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{
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template<class it, class top> struct grammar;
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struct capstan extern const capstan;
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template<class it> struct grammar;
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struct head extern const head;
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}}}
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struct capstan extern const capstan;
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}
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#pragma GCC visibility pop
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namespace ircd { namespace rfc1459 { namespace gen
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__attribute__((visibility("hidden")))
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#pragma GCC visibility push(internal)
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namespace ircd::rfc1459::gen
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{
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using ircd::spirit::buffer;
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template<class it, class top> struct grammar;
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}}}
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template<class it> struct grammar;
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struct carriage extern const carriage;
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struct generate_prefix extern const generate_prefix;
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struct generate_middle extern const generate_middle;
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struct generate_command extern const generate_command;
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struct generate_trailing extern const generate_trailing;
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}
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#pragma GCC visibility pop
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#pragma GCC visibility push(internal)
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BOOST_FUSION_ADAPT_STRUCT
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(
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ircd::rfc1459::pfx
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@ -36,7 +44,9 @@ BOOST_FUSION_ADAPT_STRUCT
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,( decltype(ircd::rfc1459::pfx::user), user )
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,( decltype(ircd::rfc1459::pfx::host), host )
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)
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#pragma GCC visibility pop
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#pragma GCC visibility push(internal)
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BOOST_FUSION_ADAPT_STRUCT
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(
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ircd::rfc1459::line
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@ -44,6 +54,7 @@ BOOST_FUSION_ADAPT_STRUCT
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,( decltype(ircd::rfc1459::line::cmd), cmd )
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,( decltype(ircd::rfc1459::line::parv), parv )
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)
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#pragma GCC visibility pop
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/* The grammar template class.
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* This aggregates all the rules under one template to make composing them easier.
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@ -53,10 +64,10 @@ BOOST_FUSION_ADAPT_STRUCT
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* a class was created `struct head` specifying grammar::line as the top rule, and
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* rfc1459::line as the top output target to parse into.
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*/
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template<class it,
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class top>
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struct ircd::rfc1459::parse::grammar
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:qi::grammar<it, top>
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template<class it>
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struct [[gnu::visibility("internal")]]
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ircd::rfc1459::parse::grammar
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:qi::grammar<it, unused_type>
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{
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qi::rule<it> space;
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qi::rule<it> colon;
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@ -80,15 +91,38 @@ struct ircd::rfc1459::parse::grammar
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qi::rule<it, rfc1459::line> line;
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qi::rule<it, std::deque<rfc1459::line>> tape;
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grammar(qi::rule<it, top> &top_rule);
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grammar() noexcept;
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};
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template<class it,
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class top>
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ircd::rfc1459::parse::grammar<it, top>::grammar(qi::rule<it, top> &top_rule)
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:qi::grammar<it, top>::base_type
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// Instantiate the input grammar to parse a const char* buffer into an rfc1459::line object.
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// The top rule is inherited and then specified as grammar::line, which is compatible
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// with an rfc1459::line object.
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//
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struct [[gnu::visibility("internal")]]
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ircd::rfc1459::parse::head
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:parse::grammar<const char *>
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{
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top_rule
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head() = default;
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}
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const ircd::rfc1459::parse::head;
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// Instantiate the input grammar to parse a const char* buffer into an rfc1459::tape object.
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// The top rule is now grammar::tape and the target object is an rfc1459::tape deque.
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//
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struct [[gnu::visibility("internal")]]
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ircd::rfc1459::parse::capstan
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:parse::grammar<const char *>
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{
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capstan() = default;
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}
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const ircd::rfc1459::parse::capstan;
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template<class it>
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ircd::rfc1459::parse::grammar<it>::grammar()
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noexcept
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:qi::grammar<it, unused_type>::base_type
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{
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qi::rule<it>{}
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}
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,space // A single space character
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{
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@ -187,31 +221,10 @@ ircd::rfc1459::parse::grammar<it, top>::grammar(qi::rule<it, top> &top_rule)
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{
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}
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// Instantiate the input grammar to parse a const char* buffer into an rfc1459::line object.
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// The top rule is inherited and then specified as grammar::line, which is compatible
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// with an rfc1459::line object.
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//
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struct ircd::rfc1459::parse::head
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:parse::grammar<const char *, rfc1459::line>
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{
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head(): grammar{line} {}
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}
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const ircd::rfc1459::parse::head;
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// Instantiate the input grammar to parse a const char* buffer into an rfc1459::tape object.
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// The top rule is now grammar::tape and the target object is an rfc1459::tape deque.
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//
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struct ircd::rfc1459::parse::capstan
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:parse::grammar<const char *, std::deque<rfc1459::line>>
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{
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capstan(): grammar{tape} {}
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}
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const ircd::rfc1459::parse::capstan;
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template<class it,
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class top>
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struct ircd::rfc1459::gen::grammar
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:karma::grammar<it, top>
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template<class it>
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struct [[gnu::visibility("internal")]]
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ircd::rfc1459::gen::grammar
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:karma::grammar<it, unused_type>
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{
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std::string trail_save;
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@ -234,15 +247,55 @@ struct ircd::rfc1459::gen::grammar
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karma::rule<it, rfc1459::cmd> command;
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karma::rule<it, rfc1459::line> line;
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grammar(karma::rule<it, top> &top_rule);
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grammar() noexcept;
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};
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template<class it,
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class top>
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ircd::rfc1459::gen::grammar<it, top>::grammar(karma::rule<it, top> &top_rule)
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:karma::grammar<it, top>::base_type
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struct [[gnu::visibility("internal")]]
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ircd::rfc1459::gen::carriage
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:gen::grammar<karma::ostream_iterator<char>>
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{
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top_rule
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carriage() = default;
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}
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const ircd::rfc1459::gen::carriage;
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struct [[gnu::visibility("internal")]]
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ircd::rfc1459::gen::generate_middle
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:gen::grammar<karma::ostream_iterator<char>>
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{
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generate_middle() = default;
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}
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const ircd::rfc1459::gen::generate_middle;
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struct [[gnu::visibility("internal")]]
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ircd::rfc1459::gen::generate_trailing
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:gen::grammar<karma::ostream_iterator<char>>
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{
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generate_trailing() = default;
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}
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const ircd::rfc1459::gen::generate_trailing;
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struct [[gnu::visibility("internal")]]
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ircd::rfc1459::gen::generate_command
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:gen::grammar<karma::ostream_iterator<char>>
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{
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generate_command() = default;
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}
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const ircd::rfc1459::gen::generate_command;
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struct [[gnu::visibility("internal")]]
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ircd::rfc1459::gen::generate_prefix
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:gen::grammar<karma::ostream_iterator<char>>
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{
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generate_prefix() = default;
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}
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const ircd::rfc1459::gen::generate_prefix;
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template<class it>
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ircd::rfc1459::gen::grammar<it>::grammar()
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noexcept
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:karma::grammar<it>::base_type
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{
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karma::rule<it>{}
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}
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,space // A single space character
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{
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@ -329,13 +382,6 @@ ircd::rfc1459::gen::grammar<it, top>::grammar(karma::rule<it, top> &top_rule)
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std::ostream &
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ircd::rfc1459::operator<<(std::ostream &s, const line &line)
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{
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struct carriage
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:gen::grammar<karma::ostream_iterator<char>, rfc1459::line>
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{
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carriage(): grammar{grammar::line} {}
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}
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static const carriage;
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if(!line.pfx.empty())
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s << line.pfx << ' ';
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@ -352,28 +398,14 @@ ircd::rfc1459::operator<<(std::ostream &s, const parv &parv)
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{
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using karma::delimit;
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struct generate_middle
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:gen::grammar<karma::ostream_iterator<char>, string_view>
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{
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generate_middle(): grammar{grammar::middle} {}
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}
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static const generate_middle;
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struct generate_trailing
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:gen::grammar<karma::ostream_iterator<char>, string_view>
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{
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generate_trailing(): grammar{grammar::trailing} {}
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}
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static const generate_trailing;
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ssize_t i(0);
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karma::ostream_iterator<char> osi(s);
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for(; i < ssize_t(parv.size()) - 1; ++i)
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if(!karma::generate(osi, delimit[generate_middle], parv.at(i)))
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if(!karma::generate(osi, delimit[gen::generate_middle], parv.at(i)))
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throw syntax_error("Invalid middle parameter");
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if(!parv.empty())
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if(!karma::generate(osi, generate_trailing, parv.at(parv.size() - 1)))
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if(!karma::generate(osi, gen::generate_trailing, parv.at(parv.size() - 1)))
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throw syntax_error("Invalid trailing parameter");
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return s;
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@ -382,15 +414,8 @@ ircd::rfc1459::operator<<(std::ostream &s, const parv &parv)
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std::ostream &
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ircd::rfc1459::operator<<(std::ostream &s, const cmd &cmd)
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{
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struct generate_command
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:gen::grammar<karma::ostream_iterator<char>, rfc1459::cmd>
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{
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generate_command(): grammar{grammar::command} {}
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}
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static const generate_command;
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karma::ostream_iterator<char> osi(s);
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if(!karma::generate(osi, generate_command, cmd))
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if(!karma::generate(osi, gen::generate_command, cmd))
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throw syntax_error("Bad command or numeric name");
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return s;
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@ -399,15 +424,8 @@ ircd::rfc1459::operator<<(std::ostream &s, const cmd &cmd)
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std::ostream &
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ircd::rfc1459::operator<<(std::ostream &s, const pfx &pfx)
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{
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struct generate_prefix
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:gen::grammar<karma::ostream_iterator<char>, rfc1459::pfx>
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{
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generate_prefix(): grammar{grammar::prefix} {}
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}
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static const generate_prefix;
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karma::ostream_iterator<char> osi(s);
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if(!karma::generate(osi, generate_prefix, pfx))
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if(!karma::generate(osi, gen::generate_prefix, pfx))
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throw syntax_error("Invalid prefix");
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return s;
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@ -417,12 +435,7 @@ ircd::rfc1459::line::line(const char *&start,
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const char *const &stop)
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try
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{
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static const auto &grammar
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{
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parse::head
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};
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ircd::parse(start, stop, grammar, *this);
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ircd::parse(start, stop, parse::head, *this);
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}
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catch(const qi::expectation_failure<const char *> &e)
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{
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@ -457,7 +470,10 @@ ircd::rfc1459::character::charset(const attr &attr)
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{
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uint8_t buf[256];
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const size_t len(charset(attr, buf, sizeof(buf)));
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return { reinterpret_cast<const char *>(buf), len };
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return
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{
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reinterpret_cast<const char *>(buf), len
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};
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}
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size_t
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@ -484,7 +500,10 @@ ircd::rfc1459::character::gather(const attr &attr)
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{
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uint8_t buf[256];
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const size_t len(gather(attr, buf, sizeof(buf)));
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return { reinterpret_cast<const char *>(buf), len };
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return
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{
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reinterpret_cast<const char *>(buf), len
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};
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}
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size_t
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