X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Ftactics%2FproofEngineTypes.ml;h=6e532a807478f3f28f4c11898e4ed1afb6ea7c48;hb=55ba0a660f91e491e904dad63b14ddf2bcc2754d;hp=2e25e4a057389f7149bfa64334bcbefdca615d84;hpb=d1126c6b78a3333bbf415daf027004496b77c2f4;p=helm.git

diff --git a/helm/ocaml/tactics/proofEngineTypes.ml b/helm/ocaml/tactics/proofEngineTypes.ml
index 2e25e4a05..6e532a807 100644
--- a/helm/ocaml/tactics/proofEngineTypes.ml
+++ b/helm/ocaml/tactics/proofEngineTypes.ml
@@ -72,7 +72,10 @@ type lazy_reduction =
 let const_lazy_reduction red =
   (fun _ metasenv ugraph -> red, metasenv, ugraph)
 
-type pattern = lazy_term option * (string * Cic.term) list * Cic.term
+type ('term, 'lazy_term) pattern =
+  'lazy_term option * (string * 'term) list * 'term option
+
+type lazy_pattern = (Cic.term, lazy_term) pattern
 
 let conclusion_pattern t =
   let t' = 
@@ -80,10 +83,10 @@ let conclusion_pattern t =
     | None -> None
     | Some t -> Some (fun _ m u -> t, m, u)
   in
-  t',[],Cic.Implicit (Some `Hole)
+  t',[],Some (Cic.Implicit (Some `Hole))
 
   (** tactic failure *)
-exception Fail of string
+exception Fail of string Lazy.t
 
   (** 
     calls the opaque tactic on the status, restoring the original 
@@ -95,3 +98,6 @@ let apply_tactic t status =
   (** constraint: the returned value will always be constructed by Cic.Name **)
 type mk_fresh_name_type =
  Cic.metasenv -> Cic.context -> Cic.name -> typ:Cic.term -> Cic.name
+
+let goals_of_proof (_,metasenv,_,_) = List.map (fun (g,_,_) -> g) metasenv
+