diff options
| author |  gareuselesinge <gareuselesinge@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2013-08-30 12:20:10 +0000 |
|---|---|---|
| committer | gareuselesinge <gareuselesinge@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2013-08-30 12:20:10 +0000 |
| commit | 6a5b186d2b53cf2c3e3a7ed5c238d26367a9df96 (patch) | |
| tree | 06830f8dd95df021b1c84e97801e4b49b585f3eb /library | |
| parent | fe07a7f5f4b5b1d92e0e83cab9b886b642c6f8eb (diff) | |
recdef: restore old semantics (pre STM)
The Stm commit switched from an home made handling of failures to
a with_state_protection. This was wrong, since in case of success
the global state has to be left altered.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16746 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'library')
| -rw-r--r-- | library/states.ml | 2 | ||||
| -rw-r--r-- | library/states.mli | 7 |
2 files changed, 8 insertions, 1 deletions
diff --git a/library/states.ml b/library/states.ml index a06e7ce80..ea4e7d43c 100644 --- a/library/states.ml +++ b/library/states.ml @@ -39,4 +39,4 @@ let with_state_protection f x = with reraise -> (unfreeze st; raise reraise) - +let with_state_protection_on_exception = Future.transactify diff --git a/library/states.mli b/library/states.mli index 0babae6af..fae1bfc02 100644 --- a/library/states.mli +++ b/library/states.mli @@ -27,3 +27,10 @@ val unfreeze : state -> unit val with_state_protection : ('a -> 'b) -> 'a -> 'b +(** [with_state_protection_on_exception f x] applies [f] to [x] and restores the + state of the whole system as it was before applying [f] only if an + exception is raised. Unlike [with_state_protection] it also takes into + account the proof state *) + +val with_state_protection_on_exception : ('a -> 'b) -> 'a -> 'b + |