diff options
| author | letouzey | 2013-03-21 21:11:17 +0000 |
|---|---|---|
| committer | letouzey | 2013-03-21 21:11:17 +0000 |
| commit | 5cff8a26e6444a4523eb8f471a1203a33c611b5b (patch) | |
| tree | a6cdc580245c6390deb7f7b26f86bf60fe9e9a15 /interp/constrextern.ml | |
| parent | 4da7ddb8c3c2f1dafd5d9187741659a9332b75c2 (diff) | |
Robust display of NotConvertibleTypeField errors (fix #3008, #2995)
Since the nametab isn't aware of everything needed to print mismatched
types (cf the bug test-cases), we create a robust term printer that
known how to print a fully-qualified name when [shortest_qualid_of_global]
has failed. These Printer.safe_pr_constr and alii are meant to never fail
(at worse they display "??", for instance when the env isn't rich enough).
Moreover, the environnement may have changed between the raise
of NotConvertibleTypeField and its display, so we store the original
env in the exception.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16342 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'interp/constrextern.ml')
| -rw-r--r-- | interp/constrextern.ml | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/interp/constrextern.ml b/interp/constrextern.ml index 47753c1582..84baefe615 100644 --- a/interp/constrextern.ml +++ b/interp/constrextern.ml @@ -140,20 +140,21 @@ let insert_pat_alias loc p = function let extern_evar loc n l = if !print_evar_arguments then CEvar (loc,n,l) else CEvar (loc,n,None) -let debug_global_reference_printer = - ref (fun _ -> failwith "Cannot print a global reference") +(** We allow customization of the global_reference printer. + For instance, in the debugger the tables of global references + may be inaccurate *) -let in_debugger = ref false +let default_extern_reference loc vars r = + Qualid (loc,shortest_qualid_of_global vars r) -let set_debug_global_reference_printer f = - debug_global_reference_printer := f +let my_extern_reference = ref default_extern_reference -let extern_reference loc vars r = - if !in_debugger then - (* Debugger does not have the tables of global reference at hand *) - !debug_global_reference_printer loc r - else - Qualid (loc,shortest_qualid_of_global vars r) +let set_extern_reference f = my_extern_reference := f +let get_extern_reference () = !my_extern_reference + +let extern_reference loc vars l = !my_extern_reference loc vars l + +let in_debugger = ref false (**********************************************************************) (* mapping patterns to cases_pattern_expr *) |