diff options
Diffstat (limited to 'pretyping/typeclasses.ml')
| -rw-r--r-- | pretyping/typeclasses.ml | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/pretyping/typeclasses.ml b/pretyping/typeclasses.ml index e85f174e0..d8a09f95c 100644 --- a/pretyping/typeclasses.ml +++ b/pretyping/typeclasses.ml @@ -473,19 +473,24 @@ let is_resolvable evi = assert (evi.evar_body = Evar_empty); Option.default true (resolvable.get evi.evar_extra) -let mark_unresolvable_undef evi = - let t = resolvable.set false evi.evar_extra in +let mark_resolvability_undef b evi = + let t = resolvable.set b evi.evar_extra in { evi with evar_extra = t } -let mark_unresolvable evi = +let mark_resolvability b evi = assert (evi.evar_body = Evar_empty); - mark_unresolvable_undef evi + mark_resolvability_undef false evi -let mark_unresolvables sigma = +let mark_unresolvable evi = mark_resolvability false evi + +let mark_resolvability b sigma = Evd.fold_undefined (fun ev evi evs -> - Evd.add evs ev (mark_unresolvable_undef evi)) + Evd.add evs ev (mark_resolvability_undef b evi)) sigma (Evd.defined_evars sigma) +let mark_unresolvables sigma = mark_resolvability false sigma +let mark_resolvables sigma = mark_resolvability true sigma + let has_typeclasses evd = Evd.fold_undefined (fun ev evi has -> has || (is_class_evar evd evi && is_resolvable evi)) |