diff options
Diffstat (limited to 'build/target')
| -rw-r--r-- | build/target | 45 |
1 files changed, 35 insertions, 10 deletions
diff --git a/build/target b/build/target index 9587c6a..000496c 100644 --- a/build/target +++ b/build/target @@ -36,7 +36,15 @@ namespace build // Target state. // - enum class target_state {unknown, postponed, unchanged, changed, failed}; + enum class target_state + { + group, // Target's state is the group's state. + unknown, + postponed, + unchanged, + changed, + failed + }; std::ostream& operator<< (std::ostream&, target_state); @@ -68,15 +76,20 @@ namespace build // on all the prerequisites in a loop, skipping ignored. Specially, // for actions with the "first" execution mode, it calls // execute_prerequisites() while for those with the "last" mode -- - // reverse_execute_prerequisites(); see <operation>, <algorithm> - // for details. + // reverse_execute_prerequisites(); see <build/operation>, + // <build/algorithm> for details. The group recipe calls the group's + // recipe. // extern const recipe empty_recipe; extern const recipe noop_recipe; extern const recipe default_recipe; + extern const recipe group_recipe; target_state - noop_action (action, target&); // Defined in <algorithm> + noop_action (action, target&); // Defined in <build/algorithm>. + + target_state + group_action (action, target&); // Defined in <build/algorithm>. // Prerequisite references as used in the target::prerequisites list // below. @@ -264,7 +277,13 @@ namespace build } public: - target_state state; + target_state raw_state; + + target_state + state () const + { + return raw_state != target_state::group ? raw_state : group->raw_state; + } // Number of direct targets that depend on this target in the current // action. It is incremented during the match phase and then decremented @@ -296,12 +315,18 @@ namespace build // Also reset the target state. If this is a noop recipe, then // mark the target unchanged so that we don't waste time executing - // the recipe. + // the recipe. If this is a group recipe, then mark the state as + // coming from the group. // - recipe_function** f (recipe_.target<recipe_function*> ()); - state = (f == nullptr || *f != &noop_action) - ? target_state::unknown - : target_state::unchanged; + raw_state = target_state::unknown; + + if (recipe_function** f = recipe_.target<recipe_function*> ()) + { + if (*f == &noop_action) + raw_state = target_state::unchanged; + else if (*f == &group_action) + raw_state = target_state::group; + } dependents = 0; } |