diff options
Diffstat (limited to 'libbuild2/target.cxx')
| -rw-r--r-- | libbuild2/target.cxx | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/libbuild2/target.cxx b/libbuild2/target.cxx index a9ae47a..c1002b9 100644 --- a/libbuild2/target.cxx +++ b/libbuild2/target.cxx @@ -1217,6 +1217,42 @@ namespace build2 target_type::flag::none }; + // group + // + group_view group:: + group_members (action a) const + { + if (members_on == 0) // Not yet discovered. + return group_view {nullptr, 0}; + + // Members discovered during anything other than perform_update are only + // good for that operation. For example, we only return the static members + // ("representative sample") for perform_configure. + // + // We also re-discover the members on each update and clean not to + // overcomplicate the already twisted adhoc_buildscript_rule::apply() + // logic. + // + if (members_on != ctx.current_on) + { + if (members_action != perform_update_id || + a == perform_update_id || + a == perform_clean_id) + return group_view {nullptr, 0}; + } + + // Note that we may have no members (e.g., perform_configure and there are + // no static members). However, whether std::vector returns a non-NULL + // pointer in this case is undefined. + // + size_t n (members.size ()); + return group_view { + n != 0 + ? members.data () + : reinterpret_cast<const target* const*> (this), + n}; + } + const target_type group::static_type { "group", @@ -1230,6 +1266,8 @@ namespace build2 target_type::flag::group }; + // alias + // static const target* alias_search (const target& t, const prerequisite_key& pk) { |