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Merge remote-tracking branch 'origin/master' into environment-scoping

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Timothy Clem 2018-03-06 11:02:43 -08:00
commit f5edf073a2
2 changed files with 5 additions and 3 deletions
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src/Control/Abstract/Value.hs
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@ -17,7 +17,7 @@ import Prelude hiding (fail)
-- --
-- This allows us to abstract the choice of whether to evaluate under binders for different value types. -- This allows us to abstract the choice of whether to evaluate under binders for different value types.
class (MonadEvaluator t v m) => MonadValue t v m where class (MonadEvaluator t v m) => MonadValue t v m where
-- | Construct an abstract unit value. -- | Construct an abstract unit value.
unit :: m v unit :: m v
-- | Construct an abstract integral value. -- | Construct an abstract integral value.

6
src/Control/Monad/Effect/Fresh.hs
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@ -8,8 +8,10 @@ type TName = Int
-- | An effect offering a (resettable) sequence of always-incrementing, and therefore “fresh,” type variables. -- | An effect offering a (resettable) sequence of always-incrementing, and therefore “fresh,” type variables.
data Fresh a where data Fresh a where
Reset :: TName -> Fresh () -- ^ Request a reset of the sequence of variable names. -- | Request a reset of the sequence of variable names.
Fresh :: Fresh TName -- ^ Request a fresh variable name. Reset :: TName -> Fresh ()
-- | Request a fresh variable name.
Fresh :: Fresh TName
-- | 'Monad's offering a (resettable) sequence of guaranteed-fresh type variables. -- | 'Monad's offering a (resettable) sequence of guaranteed-fresh type variables.
class Monad m => MonadFresh m where class Monad m => MonadFresh m where