diff options
| author |  msozeau <msozeau@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2008-03-27 00:57:38 +0000 |
|---|---|---|
| committer | msozeau <msozeau@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2008-03-27 00:57:38 +0000 |
| commit | 9eeb0905d1d6f2c9e7b9be83660335838d2c1295 (patch) | |
| tree | c41f29ec9c3d627ae89484ba368145a5fc9c2dd1 /toplevel/vernacexpr.ml | |
| parent | 57eec1e1e4efd09f5181297d87b1908c284e6951 (diff) | |
Various fixes on typeclasses:
- Better interface in constrintern w.r.t. evars used during typechecking
- Add "unsatisfiable_constraints" exception which gives back the raw
evar_map that was not satisfied during typeclass search (presentation
could be improved).
- Correctly infer the minimal sort for typeclasses declared as
definitions (everything was in type before).
- Really handle priorities in typeclass eauto: goals produced with higher
priority (lowest number) instances are tried before other of lower
priority goals, regardless of the number of subgoals.
- Change inverse to a notation for flip, now that universe polymorphic
definitions are handled correctly.
- Add EquivalenceDec class similar to SetoidDec, declaring decision
procedures for equivalences.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10724 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'toplevel/vernacexpr.ml')
| -rw-r--r-- | toplevel/vernacexpr.ml | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/toplevel/vernacexpr.ml b/toplevel/vernacexpr.ml index ee0c42aa2..4579d43a6 100644 --- a/toplevel/vernacexpr.ml +++ b/toplevel/vernacexpr.ml @@ -228,7 +228,7 @@ type vernac_expr = | VernacClass of lident * (* name *) local_binder list * (* params *) - sort_expr located * (* arity *) + sort_expr located option * (* arity *) local_binder list * (* constraints *) (lident * bool * constr_expr) list (* props, with substructure hints *) |