diff options
Diffstat (limited to 'build/cxx/rule.cxx')
| -rw-r--r-- | build/cxx/rule.cxx | 201 |
1 files changed, 56 insertions, 145 deletions
diff --git a/build/cxx/rule.cxx b/build/cxx/rule.cxx index e59c5b9..7f9ea02 100644 --- a/build/cxx/rule.cxx +++ b/build/cxx/rule.cxx @@ -83,10 +83,10 @@ namespace build // a source file specified for an obj member overrides the one // specified for the group. // - for (prerequisite_target& pe: reverse_iterate (group_prerequisites (t))) + for (prerequisite& p: reverse_iterate (group_prerequisites (t))) { - if (pe.prereq->type.id == typeid (cxx)) - return &pe; + if (p.type.id == typeid (cxx)) + return &p; } level3 ([&]{trace << "no c++ source file for target " << t;}); @@ -108,6 +108,10 @@ namespace build t.path (t.derived_path ("o", nullptr, "-so")); } + // Inject dependency on the output directory. + // + inject_parent_fsdir (a, t); + // Search and match all the existing prerequisites. The injection // code (below) takes care of the ones it is adding. // @@ -127,17 +131,17 @@ namespace build // if (a.operation () == update_id || a.operation () == default_id) { - prerequisite_target& spe (*static_cast<prerequisite_target*> (v)); - cxx& st (dynamic_cast<cxx&> (*spe.target)); + // The cached prerequisite target (sp.target) should be the + // same as what is in t.prerequisite_targets since we used + // standard search_and_match() above. + // + prerequisite& sp (*static_cast<prerequisite*> (v)); + cxx& st (dynamic_cast<cxx&> (*sp.target)); if (st.mtime () != timestamp_nonexistent) - inject_prerequisites (a, t, st, spe.prereq->scope); + inject_prerequisites (a, t, st, sp.scope); } - // Inject dependency on the output directory. - // - inject_parent_fsdir (a, t); - switch (a) { case perform_update_id: return &perform_update; @@ -299,13 +303,13 @@ namespace build ds.prerequisites.insert ( hxx::static_type, move (d), move (n), e, ds, trace).first); - // Resolve to target. + // Add to our prerequisites list. // - path_target& pt (dynamic_cast<path_target&> (search (p))); + t.prerequisites.emplace_back (p); - // Add to prerequisites list. + // Resolve to target. // - t.prerequisites.emplace_back (p, pt); + path_target& pt (dynamic_cast<path_target&> (search (p))); // Assign path. // @@ -315,6 +319,10 @@ namespace build // Match to a rule. // build::match (a, pt); + + // Add to our resolved target list. + // + t.prerequisite_targets.push_back (&pt); } } @@ -342,7 +350,7 @@ namespace build perform_update (action a, target& xt) { path_target& t (static_cast<path_target&> (xt)); - cxx* s (execute_find_prerequisites<cxx> (a, t, t.mtime ())); + cxx* s (execute_prerequisites<cxx> (a, t, t.mtime ())); if (s == nullptr) return target_state::unchanged; @@ -484,83 +492,6 @@ namespace build return seen_cxx || seen_c || seen_obj || seen_lib ? &t : nullptr; } - static inline target_state - select_obja_liba (action a, target& t) - { - target* r; - if (obj* o = t.is_a<obj> ()) - r = o->a; - else if (lib* l = t.is_a<lib> ()) - r = l->a; - else - r = &t; - - return execute (a, *r); - } - - static inline target_state - select_obja_libso (action a, target& t) - { - target* r; - if (obj* o = t.is_a<obj> ()) - r = o->a; - else if (lib* l = t.is_a<lib> ()) - r = l->so; - else - r = &t; - - return execute (a, *r); - } - - static inline target_state - select_objso_liba (action a, target& t) - { - target* r; - if (obj* o = t.is_a<obj> ()) - r = o->so; - else if (lib* l = t.is_a<lib> ()) - r = l->a; - else - r = &t; - - return execute (a, *r); - } - - static inline target_state - select_objso_libso (action a, target& t) - { - target* r; - if (obj* o = t.is_a<obj> ()) - r = o->so; - else if (lib* l = t.is_a<lib> ()) - r = l->so; - else - r = &t; - - return execute (a, *r); - } - - static executor_function* clean_table[2][2] = - { - {&perform_clean<select_obja_liba>, &perform_clean<select_obja_libso>}, - {&perform_clean<select_objso_liba>, &perform_clean<select_objso_libso>} - }; - - static executor_function* default_table[2][2] = - { - {&default_action<select_obja_liba>, &default_action<select_obja_libso>}, - {&default_action<select_objso_liba>, &default_action<select_objso_libso>} - }; - - static bool (*execute_table[2][2]) (action, target&, const timestamp&) = - { - {&execute_prerequisites<select_obja_liba>, - &execute_prerequisites<select_obja_libso>}, - - {&execute_prerequisites<select_objso_liba>, - &execute_prerequisites<select_objso_libso>} - }; - recipe link:: apply (action a, target& xt, void*) const { @@ -596,6 +527,10 @@ namespace build } } + // Inject dependency on the output directory. + // + inject_parent_fsdir (a, t); + // We may need the project roots for rule chaining (see below). // We will resolve them lazily only if needed. // @@ -605,29 +540,29 @@ namespace build // Process prerequisites: do rule chaining for C and C++ source // files as well as search and match. // - for (prerequisite_target& pe: group_prerequisites (t)) + group_prerequisites gp (t); + t.prerequisite_targets.reserve (gp.size ()); + + for (prerequisite_ref& pr: gp) { - bool group (!pe.belongs (t)); // Target group's prerequisite. - prerequisite& p (pe); + bool group (!pr.belongs (t)); // Target group's prerequisite. + + prerequisite& p (pr); + target* pt (nullptr); if (!p.is_a<c> () && !p.is_a<cxx> ()) { // The same basic logic as in search_and_match(). // - pe.target = &search (p); + pt = &search (p); - if (a.operation () == clean_id && !pe.target->dir.sub (t.dir)) - { - pe.target = nullptr; // Ignore. - continue; - } + if (a.operation () == clean_id && !pt->dir.sub (t.dir)) + continue; // Skip. // If this is the obj{} or lib{} target group, then pick the // appropriate member and make sure it is searched and matched. // - target* pt; - - if (obj* o = pe.target->is_a<obj> ()) + if (obj* o = pt->is_a<obj> ()) { pt = so ? static_cast<target*> (o->so) : o->a; @@ -639,20 +574,8 @@ namespace build pt = &search ( prerequisite_key {&type, &p.dir, &p.name, &p.ext, &p.scope}); } - - // This is a bit tricky: if this is a group's prerequisite, - // then we have to keep pe.target pointing to the obj{} group - // since there could be another match that uses a different - // member of this prerequisite. In this case we specify the - // "executor" (see below) which will pick the right member - // for one of common algorithms. However, if this is our own - // prerequisite, then we are free to hard-wire the member - // we need directly in pe.target. - // - if (!group) - pe.target = pt; } - else if (lib* l = pe.target->is_a<lib> ()) + else if (lib* l = pt->is_a<lib> ()) { // Make sure the library build that we need is available. // @@ -672,16 +595,10 @@ namespace build pt = &search ( prerequisite_key {&type, &p.dir, &p.name, &p.ext, &p.scope}); } - - // Same logic as for obj{} - // - if (!group) - pe.target = pt; } - else - pt = pe.target; build::match (a, *pt); + t.prerequisite_targets.push_back (pt); continue; } @@ -750,13 +667,12 @@ namespace build // If we shouldn't clean obj{}, then it is fair to assume // we shouldn't clean cxx{} either (generated source will // be in the same directory as obj{} and if not, well, go - // and find yourself another build system). + // find yourself another build system). // - pe.target = nullptr; // Skip. - continue; + continue; // Skip. } - pe.target = ot; + pt = ot; // If we have created the obj{} target group, pick one of its // members; the rest would be primarily concerned with it. @@ -808,7 +724,7 @@ namespace build fail << "synthesized target for prerequisite " << cp << " would be incompatible with existing target " << *ot << - info << "unknown existing prerequsite type " << p << + info << "unknown existing prerequisite type " << p << info << "specify corresponding obj{} target explicitly"; } @@ -820,33 +736,31 @@ namespace build if (cp.target != cp1->target) fail << "synthesized target for prerequisite " << cp << " would be incompatible with existing target " << *ot << - info << "existing prerequsite " << *cp1 << " does not " + info << "existing prerequisite " << *cp1 << " does not " << "match " << cp << info << "specify corresponding " << o_type.name << "{} " << "target explicitly"; } else { - // Note: add the source to the group, not member. + // Note: add the source to the group, not the member. // - pe.target->prerequisites.emplace_back (cp); + pt->prerequisites.emplace_back (cp); build::match (a, *ot); } - // Change the exe{} target's prerequsite ref from cxx{} to obj*{}. + // Change the exe{} target's prerequisite from cxx{} to obj*{}. // - pe.prereq = &op; - } + pr = op; - // Inject dependency on the output directory. - // - inject_parent_fsdir (a, t); + t.prerequisite_targets.push_back (ot); + } switch (a) { case perform_update_id: return &perform_update; - case perform_clean_id: return clean_table[so][lso]; - default: return default_table[so][lso]; // Forward to prerequisites. + case perform_clean_id: return &perform_clean; + default: return default_recipe; // Forward to prerequisites. } } @@ -871,7 +785,7 @@ namespace build case type::libso: lso = true; break; } - if (!execute_table[so][lso] (a, t, t.mtime ())) + if (!execute_prerequisites (a, t, t.mtime ())) return target_state::unchanged; // Translate paths to relative (to working directory) ones. This @@ -909,11 +823,8 @@ namespace build append_options (args, t, "cxx.loptions"); } - for (target* pt: group_prerequisites (t)) + for (target* pt: t.prerequisite_targets) { - if (pt == nullptr) - continue; // Skipped. - path_target* ppt; if (obj* o = pt->is_a<obj> ()) |