Hakyll.Core.Item

An item is a combination of some content and its Identifier. This way, we can still use the Identifier to access metadata.

Documentation

data Item a

Constructors

Item

Fields

• itemIdentifier :: Identifier
• itemBody :: a

Instances

Functor Item

Methods

fmap :: (a -> b) -> Item a -> Item b

(<$) :: a -> Item b -> Item a

Foldable Item

Methods

fold :: Monoid m => Item m -> m

foldMap :: Monoid m => (a -> m) -> Item a -> m

foldr :: (a -> b -> b) -> b -> Item a -> b

foldr' :: (a -> b -> b) -> b -> Item a -> b

foldl :: (b -> a -> b) -> b -> Item a -> b

foldl' :: (b -> a -> b) -> b -> Item a -> b

foldr1 :: (a -> a -> a) -> Item a -> a

foldl1 :: (a -> a -> a) -> Item a -> a

toList :: Item a -> [a]

null :: Item a -> Bool

length :: Item a -> Int

elem :: Eq a => a -> Item a -> Bool

maximum :: Ord a => Item a -> a

minimum :: Ord a => Item a -> a

sum :: Num a => Item a -> a

product :: Num a => Item a -> a

Traversable Item

Methods

traverse :: Applicative f => (a -> f b) -> Item a -> f (Item b)

sequenceA :: Applicative f => Item (f a) -> f (Item a)

mapM :: Monad m => (a -> m b) -> Item a -> m (Item b)

sequence :: Monad m => Item (m a) -> m (Item a)

Show a => Show (Item a)

Methods

showsPrec :: Int -> Item a -> ShowS

show :: Item a -> String

showList :: [Item a] -> ShowS

Binary a => Binary (Item a)

Methods

put :: Item a -> Put

get :: Get (Item a)

putList :: [Item a] -> Put

itemSetBody :: a -> Item b -> Item a

withItemBody :: (a -> Compiler b) -> Item a -> Compiler (Item b)

Perform a compiler action on the item body. This is the same as traverse, but looks less intimidating.

withItemBody = traverse