diff options
Diffstat (limited to 'libbuild2/target.hxx')
| -rw-r--r-- | libbuild2/target.hxx | 93 |
1 files changed, 65 insertions, 28 deletions
diff --git a/libbuild2/target.hxx b/libbuild2/target.hxx index 4bd11fe..b0d46e9 100644 --- a/libbuild2/target.hxx +++ b/libbuild2/target.hxx @@ -38,6 +38,23 @@ namespace build2 LIBBUILD2_SYMEXPORT const target* search_existing (const prerequisite&); + // Prerequisite inclusion/exclusion (see include() function below). + // + class include_type + { + public: + enum value {excluded, adhoc, normal}; + + include_type (value v): v_ (v) {} + include_type (bool v): v_ (v ? normal : excluded) {} + + operator value () const {return v_;} + explicit operator bool () const {return v_ != excluded;} + + private: + value v_; + }; + // Recipe. // // The returned target state is normally changed or unchanged. If there is @@ -123,9 +140,11 @@ namespace build2 // class LIBBUILD2_SYMEXPORT target { - optional<string>* ext_; // Reference to value in target_key. - public: + // Context this scope belongs to. + // + context& ctx; + // For targets that are in the src tree of a project we also keep the // corresponding out directory. As a result we may end up with multiple // targets for the same file if we are building multiple configurations of @@ -140,9 +159,10 @@ namespace build2 // when src == out). We also treat out of project targets as being in the // out tree. // - const dir_path dir; // Absolute and normalized. - const dir_path out; // Empty or absolute and normalized. - const string name; + const dir_path dir; // Absolute and normalized. + const dir_path out; // Empty or absolute and normalized. + const string name; + optional<string>* ext_; // Reference to value in target_key. const string* ext () const; // Return NULL if not specified. const string& ext (string); @@ -392,7 +412,7 @@ namespace build2 lookup operator[] (const string& name) const { - const variable* var (var_pool.find (name)); + const variable* var (ctx.var_pool.find (name)); return var != nullptr ? operator[] (*var) : lookup (); } @@ -452,6 +472,9 @@ namespace build2 // the target is synchronized, then we can access and modify (second case) // its state etc. // + // NOTE: see also the corresponding count_*() fuctions in context (must be + // kept in sync). + // static const size_t offset_touched = 1; // Target has been locked. static const size_t offset_tried = 2; // Rule match has been tried. static const size_t offset_matched = 3; // Rule has been matched. @@ -459,15 +482,6 @@ namespace build2 static const size_t offset_executed = 5; // Recipe has been executed. static const size_t offset_busy = 6; // Match/execute in progress. - static size_t count_base () {return 5 * (current_on - 1);} - - static size_t count_touched () {return offset_touched + count_base ();} - static size_t count_tried () {return offset_tried + count_base ();} - static size_t count_matched () {return offset_matched + count_base ();} - static size_t count_applied () {return offset_applied + count_base ();} - static size_t count_executed () {return offset_executed + count_base ();} - static size_t count_busy () {return offset_busy + count_base ();} - // Inner/outer operation state. See <libbuild2/operation.hxx> for details. // class LIBBUILD2_SYMEXPORT opstate @@ -530,7 +544,7 @@ namespace build2 lookup operator[] (const string& name) const { - const variable* var (var_pool.find (name)); + const variable* var (target_->ctx.var_pool.find (name)); return var != nullptr ? operator[] (*var) : lookup (); } @@ -563,7 +577,8 @@ namespace build2 assign (const variable* var) {return vars.assign (var);} // For cached. public: - opstate (): vars (false /* global */) {} + explicit + opstate (context& c): vars (c, false /* global */) {} private: friend class target_set; @@ -756,9 +771,11 @@ namespace build2 // Targets should be created via the targets set below. // public: - target (dir_path d, dir_path o, string n) - : dir (move (d)), out (move (o)), name (move (n)), - vars (false /* global */) {} + target (context& c, dir_path d, dir_path o, string n) + : ctx (c), + dir (move (d)), out (move (o)), name (move (n)), + vars (c, false /* global */), + state (c) {} target (target&&) = delete; target& operator= (target&&) = delete; @@ -798,6 +815,21 @@ namespace build2 uint8_t unmark (const target*&); + // Helper for dealing with the prerequisite inclusion/exclusion (the + // 'include' buildfile variable, see var_include in context.hxx). + // + // Note that the include(prerequisite_member) overload is also provided. + // + // @@ Maybe this filtering should be incorporated into *_prerequisites() and + // *_prerequisite_members() logic? Could make normal > adhoc > excluded and + // then pass the "threshold". + // + include_type + include (action, + const target&, + const prerequisite&, + const target* = nullptr); + // A "range" that presents the prerequisites of a group and one of // its members as one continuous sequence, or, in other words, as // if they were in a single container. The group's prerequisites @@ -1377,13 +1409,17 @@ namespace build2 private: friend class target; // Access to mutex. + friend class context; + + explicit + target_set (context& c): ctx (c) {} + + context& ctx; mutable shared_mutex mutex_; map_type map_; }; - LIBBUILD2_SYMEXPORT extern target_set targets; - // Modification time-based target. // class LIBBUILD2_SYMEXPORT mtime_target: public target @@ -1752,9 +1788,10 @@ namespace build2 // template <typename T> target* - target_factory (const target_type&, dir_path d, dir_path o, string n) + target_factory (context& c, + const target_type&, dir_path d, dir_path o, string n) { - return new T (move (d), move (o), move (n)); + return new T (c, move (d), move (o), move (n)); } // Return fixed target extension unless one was specified. @@ -1769,14 +1806,14 @@ namespace build2 string&, optional<string>&, const location&, bool); - // Get the extension from the variable or use the default if none set. If - // the default is NULL, then return NULL. + // Get the extension from the `extension` variable or use the default if + // none set. If the default is NULL, then return NULL. // - template <const char* var, const char* def> + template <const char* def> optional<string> target_extension_var (const target_key&, const scope&, const char*, bool); - template <const char* var, const char* def> + template <const char* def> bool target_pattern_var (const target_type&, const scope&, string&, optional<string>&, const location&, |