ircd::spirit: Apply hidden visibility to all headers + our internal grammar namespaces.

include/ircd/rfc3986.h

@@ -20,8 +20,6 @@ namespace ircd::rfc3986
 	IRCD_EXCEPTION(coding_error, decoding_error)
 
 	struct parser;
-	struct encoder extern const encoder;
-	struct decoder extern const decoder;
 
 	constexpr size_t HOSTNAME_MAX {rfc1035::LABEL_MAX};
 	constexpr size_t DOMAIN_MAX {rfc1035::NAME_MAX};

include/ircd/spirit.h

@@ -15,14 +15,25 @@
 /// it involves extremely expensive boost headers for creating formal spirit
 /// grammars. Include this in a definition file which defines such grammars.
 
+#pragma GCC visibility push(hidden)
 #include <boost/spirit/include/qi.hpp>
 #include <boost/spirit/include/karma.hpp>
 #include <boost/spirit/include/phoenix.hpp>
 #include <boost/fusion/include/std_pair.hpp>
 #include <boost/fusion/adapted/std_pair.hpp>
 #include <boost/fusion/adapted/std_tuple.hpp>
+#pragma GCC visibility pop
 
 namespace ircd::spirit
+{
+	template<class parent_error> struct expectation_failure;
+
+	extern thread_local char rulebuf[64]; // parse.cc
+}
+
+namespace ircd {
+namespace spirit
+__attribute__((visibility("hidden")))
 {
 	namespace spirit = boost::spirit;
 	namespace ascii = spirit::ascii;
@@ -87,11 +98,7 @@ namespace ircd::spirit
 	using _r1_type = phx::actor<spirit::attribute<1>>;
 	using _r2_type = phx::actor<spirit::attribute<2>>;
 	using _r3_type = phx::actor<spirit::attribute<3>>;
-
-	template<class parent_error> struct expectation_failure;
-
-	extern thread_local char rulebuf[64]; // parse.cc
-}
+}}
 
 namespace ircd::spirit::local
 {

ircd/fmt.cc

@@ -10,7 +10,8 @@
 
 #include <ircd/spirit.h>
 
-namespace ircd::fmt
+namespace ircd { namespace fmt
+__attribute__((visibility("hidden")))
 {
 	using namespace ircd::spirit;
 
@@ -42,7 +43,7 @@ namespace ircd::fmt
 	void handle_specifier(mutable_buffer &out, const uint &idx, const spec &, const arg &);
 	template<class generator> bool generate_string(char *&out, const generator &gen, const arg &val);
 	template<class T, class lambda> bool visit_type(const arg &val, lambda&& closure);
-}
+}}
 
 /// Structural representation of a format specifier. The parse of each
 /// specifier in the format string creates one of these.

ircd/http.cc

@@ -10,7 +10,8 @@
 
 #include <ircd/spirit.h>
 
-namespace ircd::http
+namespace ircd { namespace http
+__attribute__((visibility("hidden")))
 {
 	using namespace ircd::spirit;
 
@@ -20,7 +21,7 @@ namespace ircd::http
 	extern const std::unordered_map<ircd::http::code, ircd::string_view> reason;
 
 	[[noreturn]] void throw_error(const qi::expectation_failure<const char *> &, const bool &internal = false);
-}
+}}
 
 BOOST_FUSION_ADAPT_STRUCT
 (

ircd/json.cc

@@ -11,7 +11,8 @@
 #include <ircd/spirit.h>
 #include <boost/fusion/include/at.hpp>
 
-namespace ircd::json
+namespace ircd { namespace json
+__attribute__((visibility("hidden")))
 {
 	using namespace ircd::spirit;
 
@@ -23,7 +24,7 @@ namespace ircd::json
 	struct printer extern const printer;
 
 	const size_t &error_show_max {48};
-}
+}}
 
 BOOST_FUSION_ADAPT_STRUCT
 (

ircd/rfc1459.cc

@@ -15,19 +15,21 @@ namespace ircd::rfc1459
 	using namespace ircd::spirit;
 }
 
-namespace ircd::rfc1459::parse
+namespace ircd { namespace rfc1459 { namespace parse
+__attribute__((visibility("hidden")))
 {
 	template<class it, class top> struct grammar;
 	struct capstan extern const capstan;
 	struct head extern const head;
-}
+}}}
 
-namespace ircd::rfc1459::gen
+namespace ircd { namespace rfc1459 { namespace gen
+__attribute__((visibility("hidden")))
 {
 	using ircd::spirit::buffer;
 
 	template<class it, class top> struct grammar;
-}
+}}}
 
 BOOST_FUSION_ADAPT_STRUCT
 (

ircd/rfc3986.cc

@@ -10,10 +10,14 @@
 
 #include <ircd/spirit.h>
 
-namespace ircd::rfc3986
+namespace ircd { namespace rfc3986
+__attribute__((visibility("hidden")))
 {
 	using namespace ircd::spirit;
-}
+
+    struct encoder extern const encoder;
+    struct decoder extern const decoder;
+}}
 
 struct ircd::rfc3986::encoder
 :karma::grammar<char *, const string_view &>