X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Flambda-delta%2Ftoplevel%2FmetaAut.ml;h=d686c0f2c3e4abbe0476d3633eedd8b5787c0879;hb=28430d599505ac26b51e4887e5196d9b380c898a;hp=75aaa71e6508d61949795300082bfb0b0afe9225;hpb=cd798346d31b14b8947e5801b87dc4f363607862;p=helm.git

diff --git a/helm/software/lambda-delta/toplevel/metaAut.ml b/helm/software/lambda-delta/toplevel/metaAut.ml
index 75aaa71e6..d686c0f2c 100644
--- a/helm/software/lambda-delta/toplevel/metaAut.ml
+++ b/helm/software/lambda-delta/toplevel/metaAut.ml
@@ -19,14 +19,10 @@ module A = Aut
 (* qualified identifier: uri, name, qualifiers *)
 type qid = M.uri * M.id * M.id list
 
-type environment = M.pars H.t
-
 type context_node = qid option (* context node: None = root *)
 
 type status = {
-   henv: environment;        (* optimized global environment *)
    path: M.id list;          (* current section path *) 
-   hcnt: environment;        (* optimized context *)   
    node: context_node;       (* current context node *)
    nodes: context_node list; (* context node list *)
    line: int;                (* line number *)
@@ -38,11 +34,15 @@ type resolver = Local of int
 
 let henv_size, hcnt_size = 7000, 4300 (* hash tables initial sizes *)
 
+let henv = H.create henv_size (* optimized global environment *)
+
+let hcnt = H.create hcnt_size (* optimized context *) 
+
 (* Internal functions *******************************************************)
 
-let initial_status cover = {
+let initial_status cover =
+   H.clear henv; H.clear hcnt; {
    path = []; node = None; nodes = []; line = 1; cover = cover;
-   henv = H.create henv_size; hcnt = H.create hcnt_size
 }
 
 let id_of_name (id, _, _) = id
@@ -93,10 +93,11 @@ let resolve_lref_strict f st l lenv id =
    resolve_lref f st l lenv id
 
 let resolve_gref f st qid =
-   try let args = H.find st.henv (uri_of_qid qid) in f qid (Some args)
+   try let args = H.find henv (uri_of_qid qid) in f qid (Some args)
    with Not_found -> f qid None
 
 let resolve_gref_relaxed f st qid =
+(* this is not tail recursive *)
    let rec g qid = function
       | None      -> relax_qid (resolve_gref g st) st qid
       | Some args -> f qid args
@@ -106,16 +107,18 @@ let resolve_gref_relaxed f st qid =
 let get_pars f st = function
    | None              -> f [] None
    | Some qid as node ->
-      try let pars = H.find st.hcnt (uri_of_qid qid) in f pars None
+      try let pars = H.find hcnt (uri_of_qid qid) in f pars None
       with Not_found -> f [] (Some node)
 
 let get_pars_relaxed f st =
+(* this is not tail recursive *)
    let rec g pars = function
       | None      -> f pars 
       | Some node -> relax_opt_qid (get_pars g st) st node
    in
    get_pars g st st.node
 
+(* this is not tail recursive on the GRef branch *)
 let rec xlate_term f st lenv = function
    | A.Sort sort         -> 
       f (M.Sort sort)
@@ -165,7 +168,7 @@ let xlate_entity err f st = function
       let f qid = 
          let f pars =
 	    let f ww = 
-	       H.add st.hcnt (uri_of_qid qid) ((name, ww) :: pars);
+	       H.add hcnt (uri_of_qid qid) ((name, ww) :: pars);
 	       err {st with node = Some qid}
 	    in
             xlate_term f st pars w
@@ -177,7 +180,7 @@ let xlate_entity err f st = function
       let f pars = 
          let f qid = 
             let f ww =
-	       H.add st.henv (uri_of_qid qid) pars;
+	       H.add henv (uri_of_qid qid) pars;
 	       let a = [Y.Mark st.line] in
 	       let entry = pars, ww, None in
 	       let entity = a, uri_of_qid qid, Y.Abst entry in
@@ -192,7 +195,7 @@ let xlate_entity err f st = function
       let f pars = 
          let f qid = 
             let f ww vv = 
-	       H.add st.henv (uri_of_qid qid) pars;
+	       H.add henv (uri_of_qid qid) pars;
 	       let a = Y.Mark st.line :: if trans then [] else [Y.Priv] in 
 	       let entry = pars, ww, Some vv in
 	       let entity = a, uri_of_qid qid, Y.Abbr entry in