// file : libbuild2/bin/rule.hxx -*- C++ -*- // license : MIT; see accompanying LICENSE file #ifndef LIBBUILD2_BIN_RULE_HXX #define LIBBUILD2_BIN_RULE_HXX #include <libbuild2/types.hxx> #include <libbuild2/utility.hxx> #include <libbuild2/rule.hxx> #include <libbuild2/dist/rule.hxx> #include <libbuild2/bin/export.hxx> namespace build2 { namespace bin { // "Fail rule" for obj{} and [h]bmi{} that issues diagnostics if someone // tries to build these groups directly. // // Note that for dist it acts as a pass-through to all existing (declared) // members. // class obj_rule: public dist::rule { public: obj_rule () {} virtual bool match (action, target&) const override; virtual recipe apply (action, target&) const override; }; // This rule picks, matches, and unmatches (if possible) a member for the // purpose of making its metadata (for example, library's poptions, if // it's one of the cc libraries) available. // // The underlying idea here is that someone else (e.g., cc::link_rule) // makes a more informed choice and we piggy back on that decision, // falling back to making our own based on bin.lib and bin.exe.lib. Note // that for update this rule always returns target_state::unchanged. // // Note also that for dist it acts as a pass-through to all existing // (declared) members. // class libul_rule: public dist::rule { public: explicit libul_rule () {} virtual bool match (action, target&) const override; virtual recipe apply (action, target&) const override; }; // Pass-through to group members rule, similar to alias. // // Note that for dist it always passes to both members. // class LIBBUILD2_BIN_SYMEXPORT lib_rule: public simple_rule { public: lib_rule () {} virtual bool match (action, target&) const override; virtual recipe apply (action, target&) const override; static target_state perform (action, const target&); }; } } #endif // LIBBUILD2_BIN_RULE_HXX