X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;ds=sidebyside;f=src%2Frun.mli;h=60daa4cfaf3251290a27f9cc4400783251f23ecf;hb=refs%2Fheads%2Fmaster;hp=603ad035ac9387ad90d57f268d9c9fc9c6dc3d08;hpb=f36210fd16a8e4e4d6ecdd8825bf8b8307943472;p=goals.git

diff --git a/src/run.mli b/src/run.mli
index 603ad03..60daa4c 100644
--- a/src/run.mli
+++ b/src/run.mli
@@ -17,8 +17,15 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *)
 
-val run_targets : Ast.env -> Ast.expr list -> unit
-(** This drives evaluation of the list of target expressions (in
-    parallel) until they are complete or we reach an error.  The
-    expressions are either a list of dependencies and/or a list of
-    initial targets. *)
+val goal_runner : Deps.goal_runner
+(** Run a single goal. *)
+
+val exists_runner : Deps.exists_runner
+(** Run the implicit existence predicate.
+
+    This is used when we find a predicate like is-foo(...) but there
+    is no matching goal.  We run (in this callback) the associated
+    predicate code.  As long as it runs successfully, not returning 99 or
+    any error value, then we're OK - the predicate doesn't need rebuilding
+    so the dependency is satisfied.  However if it returns 99 (needs
+    rebuild) or an error then we have to exit with an error. *)