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Diffstat (limited to 'engine/proofview.mli')
| -rw-r--r-- | engine/proofview.mli | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/engine/proofview.mli b/engine/proofview.mli index d0a2b37a69..70513c8166 100644 --- a/engine/proofview.mli +++ b/engine/proofview.mli @@ -208,6 +208,16 @@ val tclORELSE : 'a tactic -> (Exninfo.iexn -> 'a tactic) -> 'a tactic exception can be assumed non critical. *) val tclIFCATCH : 'a tactic -> ('a -> 'b tactic) -> (Exninfo.iexn -> 'b tactic) -> 'b tactic +(** [tclWRAPFINALLY before tac finally] runs [before] before each + entry-point of [tac] and passes the result of [before] to + [finally], which is then run at each exit-point of [tac], + regardless of whether it succeeds or fails. Said another way, if + [tac] succeeds, then it behaves as [before >>= fun v -> tac >>= fun + ret -> finally v <*> tclUNIT ret]; otherwise, if [tac] fails with + [e], it behaves as [before >>= fun v -> finally v <*> tclZERO + e]. *) +val tclWRAPFINALLY : 'a tactic -> 'b tactic -> ('a -> unit tactic) -> 'b tactic + (** [tclONCE t] behave like [t] except it has at most one success: [tclONCE t] stops after the first success of [t]. If [t] fails with [e], [tclONCE t] also fails with [e]. *) |