Safe Haskell	None
Language	Haskell2010

Deque.Lazy.Reader

Description

Lazy Deque API lifted to a Reader monad, "mtl"-style.

Synopsis

map :: MonadReader (Deque a) m => (a -> b) -> m (Deque b)
prepend :: MonadReader (Deque a) m => Deque a -> m (Deque a)
append :: MonadReader (Deque a) m => Deque a -> m (Deque a)
cons :: MonadReader (Deque a) m => a -> m (Deque a)
snoc :: MonadReader (Deque a) m => a -> m (Deque a)
reverse :: MonadReader (Deque a) m => m (Deque a)
shiftLeft :: MonadReader (Deque a) m => m (Deque a)
shiftRight :: MonadReader (Deque a) m => m (Deque a)
filter :: MonadReader (Deque a) m => (a -> Bool) -> m (Deque a)
take :: MonadReader (Deque a) m => Int -> m (Deque a)
drop :: MonadReader (Deque a) m => Int -> m (Deque a)
takeWhile :: MonadReader (Deque a) m => (a -> Bool) -> m (Deque a)
dropWhile :: MonadReader (Deque a) m => (a -> Bool) -> m (Deque a)
span :: MonadReader (Deque a) m => (a -> Bool) -> m (Deque a, Deque a)
uncons :: MonadReader (Deque a) m => m (Maybe a, Deque a)
unsnoc :: MonadReader (Deque a) m => m (Maybe a, Deque a)
null :: MonadReader (Deque a) m => m Bool
length :: MonadReader (Deque a) m => m Int
head :: MonadReader (Deque a) m => m (Maybe a)
last :: MonadReader (Deque a) m => m (Maybe a)
tail :: MonadReader (Deque a) m => m (Deque a)
init :: MonadReader (Deque a) m => m (Deque a)

Documentation

map :: MonadReader (Deque a) m => (a -> b) -> m (Deque b) Source #

$\mathcal{O}(n)$. Modify each element of the queue.

prepend :: MonadReader (Deque a) m => Deque a -> m (Deque a) Source #

$\mathcal{O}(n)$. Add elements to the begginning.

append :: MonadReader (Deque a) m => Deque a -> m (Deque a) Source #

$\mathcal{O}(n)$. Add elements to the ending.

cons :: MonadReader (Deque a) m => a -> m (Deque a) Source #

$\mathcal{O}(1)$. Add element in the beginning.

snoc :: MonadReader (Deque a) m => a -> m (Deque a) Source #

$\mathcal{O}(1)$. Add element in the ending.

reverse :: MonadReader (Deque a) m => m (Deque a) Source #

$\mathcal{O}(1)$. Reverse the deque.

shiftLeft :: MonadReader (Deque a) m => m (Deque a) Source #

$\mathcal{O}(1)$, occasionally $\mathcal{O}(n)$. Move the first element to the end.

shiftRight :: MonadReader (Deque a) m => m (Deque a) Source #

$\mathcal{O}(1)$, occasionally $\mathcal{O}(n)$. Move the last element to the beginning.

filter :: MonadReader (Deque a) m => (a -> Bool) -> m (Deque a) Source #

$\mathcal{O}(n)$. Leave only the elements satisfying the predicate.

take :: MonadReader (Deque a) m => Int -> m (Deque a) Source #

$\mathcal{O}(n)$. Leave only the specified amount of first elements.

drop :: MonadReader (Deque a) m => Int -> m (Deque a) Source #

$\mathcal{O}(n)$. Drop the specified amount of first elements.

takeWhile :: MonadReader (Deque a) m => (a -> Bool) -> m (Deque a) Source #

$\mathcal{O}(n)$. Leave only the first elements satisfying the predicate.

dropWhile :: MonadReader (Deque a) m => (a -> Bool) -> m (Deque a) Source #

$\mathcal{O}(n)$. Drop the first elements satisfying the predicate.

span :: MonadReader (Deque a) m => (a -> Bool) -> m (Deque a, Deque a) Source #

$\mathcal{O}(n)$. Same as (,) <$> takeWhile predicate <*> dropWhile predicate.

uncons :: MonadReader (Deque a) m => m (Maybe a, Deque a) Source #

$\mathcal{O}(1)$, occasionally $\mathcal{O}(n)$. Get the first element and deque without it if it's not empty.

unsnoc :: MonadReader (Deque a) m => m (Maybe a, Deque a) Source #

$\mathcal{O}(1)$, occasionally $\mathcal{O}(n)$. Get the last element and deque without it if it's not empty.

null :: MonadReader (Deque a) m => m Bool Source #

$\mathcal{O}(1)$. Check whether deque is empty.

length :: MonadReader (Deque a) m => m Int Source #

$\mathcal{O}(1)$. Check whether deque is empty.

head :: MonadReader (Deque a) m => m (Maybe a) Source #

$\mathcal{O}(1)$, occasionally $\mathcal{O}(n)$. Get the first element if deque is not empty.

last :: MonadReader (Deque a) m => m (Maybe a) Source #

$\mathcal{O}(1)$, occasionally $\mathcal{O}(n)$. Get the last element if deque is not empty.

tail :: MonadReader (Deque a) m => m (Deque a) Source #

$\mathcal{O}(1)$, occasionally $\mathcal{O}(n)$. Keep all elements but the first one.

init :: MonadReader (Deque a) m => m (Deque a) Source #

$\mathcal{O}(1)$, occasionally $\mathcal{O}(n)$. Keep all elements but the last one.