- Reforme de la gestion des args recursifs (via arbres reguliers)

- coqtop -byte -opt bouclait!


git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@2475 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 34 insertions, 0 deletions

diff --git a/lib/rtree.mli b/lib/rtree.mli
new file mode 100644
index 000000000..5a34c819e
--- /dev/null
+++ b/lib/rtree.mli
@@ -0,0 +1,34 @@
+(***********************************************************************)
+(*  v      *   The Coq Proof Assistant  /  The Coq Development Team    *)
+(* <O___,, *        INRIA-Rocquencourt  &  LRI-CNRS-Orsay              *)
+(*   \VV/  *************************************************************)
+(*    //   *      This file is distributed under the terms of the      *)
+(*         *       GNU Lesser General Public License Version 2.1       *)
+(***********************************************************************)
+
+(*i $Id$ i*)
+
+(* Type of regular tree with nodes labelled by values of type 'a *)
+type 'a t
+
+(* Building trees *)
+(* build a recursive call *) 
+val mk_param : int -> 'a t
+(* build a node given a label and the vector of sons *)
+val mk_node  : 'a -> 'a t array -> 'a t
+(* build mutually dependent trees *)
+val mk_rec   : 'a t array -> 'a t array
+
+(* [lift k t] increases of [k] the free parameters of [t]. Needed
+   to avoid captures when a tree appears under mk_rec *) 
+val lift : int -> 'a t -> 'a t
+
+(* Destructors (recursive calls are expanded) *)
+val dest_param : 'a t -> int
+val dest_node  : 'a t -> 'a * 'a t array
+
+(* Tells if a tree has an infinite branch *)
+val is_infinite : 'a t -> bool
+
+(* A rather simple minded pretty-printer *)
+val pp_tree : ('a -> Pp.std_ppcmds) -> 'a t -> Pp.std_ppcmds