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Diffstat (limited to 'src/Erebos/State.hs')
| -rw-r--r-- | src/Erebos/State.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Erebos/State.hs b/src/Erebos/State.hs index d930248..d74dddb 100644 --- a/src/Erebos/State.hs +++ b/src/Erebos/State.hs @@ -112,7 +112,7 @@ instance SharedType (Maybe ComposedIdentity) where sharedTypeID _ = mkSharedTypeID "0c6c1fe0-f2d7-4891-926b-c332449f7871" -class (MonadIO m, MonadStorage m, HeadType a) => MonadHead a m where +class (MonadStorage m, HeadType a) => MonadHead a m where updateLocalHead :: (Stored a -> m (Stored a, b)) -> m b getLocalHead :: m (Stored a) getLocalHead = updateLocalHead $ \x -> return (x, x) |