diff options
| -rw-r--r-- | tactics/class_tactics.ml | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/tactics/class_tactics.ml b/tactics/class_tactics.ml index 7a8595653..55df67c6e 100644 --- a/tactics/class_tactics.ml +++ b/tactics/class_tactics.ml @@ -1425,18 +1425,20 @@ let deps_of_constraints cstrs evm p = Intpart.union_set (Evar.Set.union evx evy) p) cstrs -let evar_dependencies evm p = +let evar_dependencies pred evm p = Evd.fold_undefined (fun ev evi _ -> - let evars = Evar.Set.add ev (Evarutil.undefined_evars_of_evar_info evm evi) - in Intpart.union_set evars p) + if Typeclasses.is_resolvable evi && pred evm ev evi then + let evars = Evar.Set.add ev (Evarutil.undefined_evars_of_evar_info evm evi) + in Intpart.union_set evars p + else ()) evm () (** [split_evars] returns groups of undefined evars according to dependencies *) -let split_evars evm = +let split_evars pred evm = let p = Intpart.create () in - evar_dependencies evm p; + evar_dependencies pred evm p; deps_of_constraints (snd (extract_all_conv_pbs evm)) evm p; Intpart.partition p @@ -1521,7 +1523,7 @@ exception Unresolved (** If [do_split] is [true], we try to separate the problem in several components and then solve them separately *) let resolve_all_evars debug depth unique env p oevd do_split fail = - let split = if do_split then split_evars oevd else [Evar.Set.empty] in + let split = if do_split then split_evars p oevd else [Evar.Set.empty] in let in_comp comp ev = if do_split then Evar.Set.mem ev comp else true in let rec docomp evd = function |