diff options
| author |  Hugo Herbelin <Hugo.Herbelin@inria.fr> | 2017-08-11 13:20:11 +0200 |
|---|---|---|
| committer | Hugo Herbelin <Hugo.Herbelin@inria.fr> | 2018-02-20 10:03:03 +0100 |
| commit | ead835b3e8c366800b8c95a28a89062abb62d807 (patch) | |
| tree | 280a130d5cf54cf61c3d611e8d601d3a33e0674f /pretyping/glob_ops.ml | |
| parent | 7ef99814a02a0eb7c37dd28fb9ce603e70501745 (diff) | |
Canonically add an encoding in glob_constr of "as" operator for cases_pattern.
Diffstat (limited to 'pretyping/glob_ops.ml')
| -rw-r--r-- | pretyping/glob_ops.ml | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/pretyping/glob_ops.ml b/pretyping/glob_ops.ml index eb8a22a88..f3573360d 100644 --- a/pretyping/glob_ops.ml +++ b/pretyping/glob_ops.ml @@ -457,6 +457,10 @@ let rec rename_glob_vars l c = force @@ DAst.map_with_loc (fun ?loc -> function (**********************************************************************) (* Conversion from glob_constr to cases pattern, if possible *) +let is_gvar id c = match DAst.get c with +| GVar id' -> Id.equal id id' +| _ -> false + let rec cases_pattern_of_glob_constr na = DAst.map (function | GVar id -> begin match na with @@ -473,6 +477,9 @@ let rec cases_pattern_of_glob_constr na = DAst.map (function PatCstr (cstr,List.map (cases_pattern_of_glob_constr Anonymous) l,na) | _ -> raise Not_found end + | GLetIn (Name id as na',b,None,e) when is_gvar id e && na = Anonymous -> + (* A canonical encoding of aliases *) + DAst.get (cases_pattern_of_glob_constr na' b) | _ -> raise Not_found ) |