diff options
Diffstat (limited to 'build/cxx/rule.cxx')
| -rw-r--r-- | build/cxx/rule.cxx | 117 |
1 files changed, 40 insertions, 77 deletions
diff --git a/build/cxx/rule.cxx b/build/cxx/rule.cxx index 58d8e88..72c4e35 100644 --- a/build/cxx/rule.cxx +++ b/build/cxx/rule.cxx @@ -637,13 +637,8 @@ namespace build pt = so ? static_cast<target*> (o->so) : o->a; if (pt == nullptr) - { - const target_type& type ( - so ? objso::static_type : obja::static_type); - - pt = &search ( - prerequisite_key {{&type, &p.dir, &p.name, &p.ext}, &p.scope}); - } + pt = &search (so ? objso::static_type : obja::static_type, + p.dir, p.name, p.ext, &p.scope); } else if (lib* l = pt->is_a<lib> ()) { @@ -677,13 +672,8 @@ namespace build pt = lso ? static_cast<target*> (l->so) : l->a; if (pt == nullptr) - { - const target_type& type ( - lso ? libso::static_type : liba::static_type); - - pt = &search ( - prerequisite_key {{&type, &p.dir, &p.name, &p.ext}, &p.scope}); - } + pt = &search (lso ? libso::static_type : liba::static_type, + p.dir, p.name, p.ext, &p.scope); } build::match (a, *pt); @@ -698,18 +688,18 @@ namespace build // altogether. So we are going to use the target's project. // root = t.root_scope (); - assert (root != nullptr); // Shouldn't have matched. + assert (root != nullptr); // Otherwise shouldn't have matched. out_root = &root->path (); src_root = &root->src_path (); } - prerequisite& cp (p); + prerequisite& cp (p); // c(xx){} prerequisite. const target_type& o_type ( group ? obj::static_type : (so ? objso::static_type : obja::static_type)); - // Come up with the obj*{} prerequisite. The c(xx){} prerequisite + // Come up with the obj*{} target. The c(xx){} prerequisite // directory can be relative (to the scope) or absolute. If it is // relative, then use it as is. If it is absolute, then translate // it to the corresponding directory under out_root. While the @@ -729,105 +719,82 @@ namespace build d = *out_root / cp.dir.leaf (*src_root); } - prerequisite& op ( - cp.scope.prerequisites.insert ( - o_type, - move (d), - cp.name, - nullptr, - cp.scope, - trace).first); - - // Resolve this prerequisite to target. - // - target* ot (&search (op)); + target& ot (search (o_type, d, cp.name, nullptr, &cp.scope)); // If we are cleaning, check that this target is in the same or // a subdirectory of ours. // - // If it is not, then we are effectively leaving the prerequisites - // half-rewritten (we only rewrite those that we should clean). - // What will happen if, say, after clean we have update? Well, - // update will come and finish the rewrite process (it will even - // reuse op that we have created but then ignored). So all is good. - // - if (a.operation () == clean_id && !ot->dir.sub (t.dir)) + if (a.operation () == clean_id && !ot.dir.sub (t.dir)) { // 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 - // find yourself another build system). + // find yourself another build system ;-)). // continue; // Skip. } - pt = ot; - // If we have created the obj{} target group, pick one of its // members; the rest would be primarily concerned with it. // if (group) { - obj& o (static_cast<obj&> (*ot)); - ot = so ? static_cast<target*> (o.so) : o.a; - - if (ot == nullptr) - { - const target_type& type ( - so ? objso::static_type : obja::static_type); + obj& o (static_cast<obj&> (ot)); + pt = so ? static_cast<target*> (o.so) : o.a; - ot = &search ( - prerequisite_key {{&type, &o.dir, &o.name, &o.ext}, nullptr}); - } + if (pt == nullptr) + pt = &search (so ? objso::static_type : obja::static_type, + o.dir, o.name, o.ext, nullptr); } + else + pt = &ot; - // If this target already exists, then it needs to be "compatible" - // with what we are doing here. + // If this obj*{} target already exists, then it needs to be + // "compatible" with what we are doing here. // // This gets a bit tricky. We need to make sure the source files // are the same which we can only do by comparing the targets to // which they resolve. But we cannot search the ot's prerequisites // -- only the rule that matches can. Note, however, that if all - // this works out, then our next step is to search and match the - // re-written prerequisite (which points to ot). If things don't - // work out, then we fail, in which case searching and matching - // speculatively doesn't really hurt. + // this works out, then our next step is to match the obj*{} + // target. If things don't work out, then we fail, in which case + // searching and matching speculatively doesn't really hurt. // prerequisite* cp1 (nullptr); - for (prerequisite& p: reverse_iterate (group_prerequisites (*ot))) + for (prerequisite& p: reverse_iterate (group_prerequisites (*pt))) { // Ignore some known target types (fsdir, headers, libraries). // - if (p.type.id == typeid (fsdir) || - p.type.id == typeid (h) || - (cp.type.id == typeid (cxx) && (p.type.id == typeid (hxx) || - p.type.id == typeid (ixx) || - p.type.id == typeid (txx))) || + if (p.is_a<fsdir> () || + p.is_a<h> () || + (cp.is_a<cxx> () && (p.is_a<hxx> () || + p.is_a<ixx> () || + p.is_a<txx> ())) || p.is_a<lib> () || p.is_a<liba> () || p.is_a<libso> ()) continue; - if (p.type.id == typeid (cxx)) + if (p.is_a<cxx> ()) { - cp1 = &p; // Check the rest of the prerequisites. - continue; + cp1 = &p; + continue; // Check the rest of the prerequisites. } fail << "synthesized target for prerequisite " << cp - << " would be incompatible with existing target " << *ot << + << " would be incompatible with existing target " << *pt << info << "unknown existing prerequisite type " << p << info << "specify corresponding obj{} target explicitly"; } if (cp1 != nullptr) { - build::match (a, *ot); // Now cp1 should be resolved. + build::match (a, *pt); // Now cp1 should be resolved. search (cp); // Our own prerequisite, so this is ok. if (cp.target != cp1->target) fail << "synthesized target for prerequisite " << cp - << " would be incompatible with existing target " << *ot << + << " would be incompatible with existing target " << *pt << info << "existing prerequisite " << *cp1 << " does not " << "match " << cp << info << "specify corresponding " << o_type.name << "{} " @@ -837,30 +804,26 @@ namespace build { // Note: add the source to the group, not the member. // - pt->prerequisites.emplace_back (cp); + ot.prerequisites.emplace_back (cp); // Add our lib*{} prerequisites to the object file (see // cxx.export.poptions above for details). // // Initially, we were only adding imported libraries, but // there is a problem with this approach: the non-imported - // library might depend on the imported one(s) which we - // will never "see" unless we add this library as well. + // library might depend on the imported one(s) which we will + // never "see" unless we start with this library. // for (prerequisite& p: group_prerequisites (t)) { if (p.is_a<lib> () || p.is_a<liba> () || p.is_a<libso> ()) - pt->prerequisites.emplace_back (p); + ot.prerequisites.emplace_back (p); } - build::match (a, *ot); + build::match (a, *pt); } - // Change the exe{} target's prerequisite from cxx{} to obj*{}. - // - pr = op; - - t.prerequisite_targets.push_back (ot); + t.prerequisite_targets.push_back (pt); } switch (a) |