added a debugging helper

diff --git a/helm/matita/matitaMisc.ml b/helm/matita/matitaMisc.ml
index ab077d9238d60d0dbb2ef14278fc160ada0277d9..acaf2123c68690ef7edef457c8b326df963a5e98 100644 (file)
--- a/helm/matita/matitaMisc.ml
+++ b/helm/matita/matitaMisc.ml
@@ -207,4 +207,9 @@ let rec list_uniq = function
   | h1::h2::tl when h1 = h2 -> list_uniq (h2 :: tl) 
   | h1::tl (* when h1 <> h2 *) -> h1 :: list_uniq tl
 
-let end_ma_RE = Pcre.regexp "\\.ma$"
+let debug_wrap name f =
+  prerr_endline (sprintf "debug_wrap: ==>> %s" name);
+  let res = f () in
+  prerr_endline (sprintf "debug_wrap: <<== %s" name);
+  res
+

diff --git a/helm/matita/matitaMisc.mli b/helm/matita/matitaMisc.mli
index 31efae031dc53eb9f7734958a61205d9dd4dc304..c2cba5903192744d61ba9ec7264d1a297ef84e5b 100644 (file)
--- a/helm/matita/matitaMisc.mli
+++ b/helm/matita/matitaMisc.mli
@@ -94,3 +94,8 @@ val get_proof_aliases: MatitaTypes.status -> DisambiguateTypes.environment
 val image_path: string -> string
 val obj_file_of_script: string -> string
 
+  (** invoke a given function and return its value; in addition il will print
+   * the given string before invoking it and "/" ^ the given string afterwards.
+   * This permit tracing of functions which does not return a value *)
+val debug_wrap: string -> (unit -> 'a) -> 'a
+