diff options
| author | Matthieu Sozeau | 2017-04-25 21:54:31 +0200 |
|---|---|---|
| committer | Maxime Dénès | 2020-09-07 20:47:42 +0200 |
| commit | b6dabf6aa5b96cfa3c11038316399f0797d734ac (patch) | |
| tree | 0e97b6c66bba554833c47cec50d017820f72afe6 /engine/proofview_monad.mli | |
| parent | b972cc5195e941633319c1fa428a9801ac4ef9e2 (diff) | |
Refine test for unresolved evars: not reachable from initial evars
The test is refined to handle aliases: i.e. undefined evars coming from
restrictions and evar-evar unifications with an initial evar are not
considered fresh unresolved evars. To check this, we generalize the
restricted_evars set to an aliased_evars set in the evar map,
registering evars being solved by another evar due to restriction
or evar-evar unifications. This implements the proposal of PR #370
for testing the resolution status of evars independently of the evar-evar
orientation order.
This allows [apply] to refine an evar with a new one if it results from a
[clear] request or an evar-evar solution only, otherwise the new evar is
considered fresh and an error is raised.
Also fixes bugs #4095 and #4413.
Co-authored-by: Maxime Dénès <maxime.denes@inria.fr>
Diffstat (limited to 'engine/proofview_monad.mli')
| -rw-r--r-- | engine/proofview_monad.mli | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/engine/proofview_monad.mli b/engine/proofview_monad.mli index 6cca3f5a5e..00d322858d 100644 --- a/engine/proofview_monad.mli +++ b/engine/proofview_monad.mli @@ -79,7 +79,7 @@ val with_empty_state : goal -> goal_with_state val map_goal_with_state : (goal -> goal) -> goal_with_state -> goal_with_state (** Type of proof views: current [evar_map] together with the list of - focused goals. *) + focused goals, locally shelved goals and globally shelved goals. *) type proofview = { solution : Evd.evar_map; comb : goal_with_state list; @@ -115,6 +115,10 @@ module type State = sig val set : t -> unit Logical.t val modify : (t->t) -> unit Logical.t end +module type Reader = sig + type t + val get : t Logical.t +end module type Writer = sig type t |