Coercions graph is printed between real types and not approximated ones

[helm.git] / helm / software / components / ng_kernel / nCicPp.ml

diff --git a/helm/software/components/ng_kernel/nCicPp.ml b/helm/software/components/ng_kernel/nCicPp.ml
index 2b0787a72cfc4d1b35a7b3ac0b909deb9745cbd3..42b05d10e46561265b1186b292c333e9ca3d408d 100644 (file)
--- a/helm/software/components/ng_kernel/nCicPp.ml
+++ b/helm/software/components/ng_kernel/nCicPp.ml
@@ -110,18 +110,24 @@ let ppterm ~context ~subst ~metasenv:_ ?(inside_fix=false) t =
        F.fprintf f "@; @[<v>[ ";
        if pl <> [] then
          begin
-           F.fprintf f "@[<hov 2>%s ⇒@;" (r2s inside_fix (R.mk_constructor 1 r));
+           F.fprintf f "@[<hov 2>%s ⇒@;" 
+             (try r2s inside_fix (R.mk_constructor 1 r)
+              with R.IllFormedReference _ -> "#ERROR#");
            aux ~toplevel:true ctx (List.hd pl);
            F.fprintf f "@]";
            ignore(List.fold_left 
              (fun i t -> 
-              F.fprintf f "@;| @[<hov 2>%s ⇒@;" (r2s inside_fix (R.mk_constructor i r));
+              F.fprintf f "@;| @[<hov 2>%s ⇒@;" 
+                (try r2s inside_fix (R.mk_constructor i r)
+                 with R.IllFormedReference _ -> "#ERROR#");
               aux ~toplevel:true ctx t; 
               F.fprintf f "@]";
               i+1)
              2 (List.tl pl));
          end;
       F.fprintf f "]@] @]";
+   | C.Appl [] | C.Appl [_] | C.Appl (C.Appl _::_) -> 
+       F.fprintf f "BAD APPLICATION"
    | C.Appl l -> 
        F.fprintf f "@[<hov 2>";
        if not toplevel then F.fprintf f "(";