Safe Haskell	None
Language	Haskell98

Data.Generics.PlateTypeable

Contents

The Class
The Combinators
Orphan instances

Description

Deprecated: Use Data.Generics.Uniplate.Typeable instead

DEPRECATED: Use Data.Generics.Uniplate.Typeable instead.

This module supplies a method for writing Biplate instances more easily.

To take an example:

data Expr = Var Int | Neg Expr | Add Expr Expr

instance Typeable Expr where ...

instance (Typeable a, Uniplate a) => PlateAll Expr a where
  plateAll (Var x  ) = plate Var |- x
  plateAll (Neg x  ) = plate Neg |+ x
  plateAll (Add x y) = plate Add |+ x |+ y

instance Uniplate Expr where
  uniplate = uniplateAll

Synopsis

module Data.Generics.Biplate
class PlateAll from to where
- plateAll :: from -> Type from to
uniplateAll :: PlateAll a b => a -> (Str b, Str b -> a)
plate :: from -> Type from to
(|+) :: (Typeable item, Typeable to, PlateAll item to) => Type (item -> from) to -> item -> Type from to
(|-) :: Type (item -> from) to -> item -> Type from to

Documentation

module Data.Generics.Biplate

The Class

class PlateAll from to where #

This class represents going from the container type to the target.

This class should only be constructed with plate, |+ and |-

Methods

plateAll :: from -> Type from to #

Instances

Instances details

PlateAll Bool to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: Bool -> Type Bool to #
PlateAll Char to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: Char -> Type Char to #
PlateAll Double to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: Double -> Type Double to #
PlateAll Float to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: Float -> Type Float to #
PlateAll Int to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: Int -> Type Int to #
PlateAll Integer to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: Integer -> Type Integer to #
PlateAll () to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: () -> Type () to #
(PlateAll from to, Typeable from, Typeable to, Uniplate to) => PlateAll [from] to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: [from] -> Type [from] to #
(PlateAll from to, Typeable from, Typeable to, Uniplate to) => PlateAll (Maybe from) to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: Maybe from -> Type (Maybe from) to #
(PlateAll a to, Typeable a, PlateAll b to, Typeable b, Typeable to, Uniplate to) => PlateAll (Either a b) to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: Either a b -> Type (Either a b) to #
(PlateAll a to, Typeable a, PlateAll b to, Typeable b, Typeable to, Uniplate to) => PlateAll (a, b) to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: (a, b) -> Type (a, b) to #
(PlateAll a to, Typeable a, PlateAll b to, Typeable b, PlateAll c to, Typeable c, Typeable to, Uniplate to) => PlateAll (a, b, c) to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: (a, b, c) -> Type (a, b, c) to #
(PlateAll a to, Typeable a, PlateAll b to, Typeable b, PlateAll c to, Typeable c, PlateAll d to, Typeable d, Typeable to, Uniplate to) => PlateAll (a, b, c, d) to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: (a, b, c, d) -> Type (a, b, c, d) to #
(PlateAll a to, Typeable a, PlateAll b to, Typeable b, PlateAll c to, Typeable c, PlateAll d to, Typeable d, PlateAll e to, Typeable e, Typeable to, Uniplate to) => PlateAll (a, b, c, d, e) to #
Instance details Defined in Data.Generics.PlateTypeable Methods plateAll :: (a, b, c, d, e) -> Type (a, b, c, d, e) to #

uniplateAll :: PlateAll a b => a -> (Str b, Str b -> a) #

This function is used to write a Uniplate instance from a PlateAll one

The Combinators

plate :: from -> Type from to #

The main combinator used to start the chain.

The following rule can be used for optimisation:

plate Ctor |- x == plate (Ctor x)

(|+) :: (Typeable item, Typeable to, PlateAll item to) => Type (item -> from) to -> item -> Type from to #

the field to the right may contain the target.

(|-) :: Type (item -> from) to -> item -> Type from to #

The field to the right does not contain the target. This can be used as either an optimisation, or more commonly for excluding primitives such as Int.

Orphan instances

Uniplate Bool #
Instance details Methods uniplate :: UniplateType Bool #
Uniplate Char #
Instance details Methods uniplate :: UniplateType Char #
Uniplate Double #
Instance details Methods uniplate :: UniplateType Double #
Uniplate Float #
Instance details Methods uniplate :: UniplateType Float #
Uniplate Int #
Instance details Methods uniplate :: UniplateType Int #
Uniplate Integer #
Instance details Methods uniplate :: UniplateType Integer #
Uniplate () #
Instance details Methods uniplate :: UniplateType () #
(Typeable a, Typeable b, Uniplate b, PlateAll a b) => Biplate a b #
Instance details Methods biplate :: BiplateType a b #