Control.DeepSeq

This module provides a deepseq function for fully evaluating data structures (that is, evaluating to "Normal Form", and not just up to "Head Normal Form" like seq does).

It uses the GHC.Generics framework so that you can generate instances for your datatypes without having to provide an implementation.

Documentation

class DeepSeq a where

Methods

rnf :: a -> ()

Evaluate its argument to normal form, and then return '()'.

Instances

DeepSeq Bool

DeepSeq Char

DeepSeq Double

DeepSeq Float

DeepSeq Int

DeepSeq Int8

DeepSeq Int16

DeepSeq Int32

DeepSeq Int64

DeepSeq Integer

DeepSeq Ordering

DeepSeq Word

DeepSeq Word8

DeepSeq Word16

DeepSeq Word32

DeepSeq Word64

DeepSeq ()

DeepSeq a => DeepSeq [a]

(Integral a, DeepSeq a) => DeepSeq (Ratio a)

DeepSeq a => DeepSeq (Complex a)

DeepSeq a => DeepSeq (Maybe a)

DeepSeq (a -> b)

(DeepSeq a, DeepSeq b) => DeepSeq (Either a b)

(DeepSeq a, DeepSeq b) => DeepSeq (a, b)

(DeepSeq a, DeepSeq b, DeepSeq c) => DeepSeq (a, b, c)

(DeepSeq a, DeepSeq b, DeepSeq c, DeepSeq d) => DeepSeq (a, b, c, d)

(DeepSeq a, DeepSeq b, DeepSeq c, DeepSeq d, DeepSeq e) => DeepSeq (a, b, c, d, e)

(DeepSeq a, DeepSeq b, DeepSeq c, DeepSeq d, DeepSeq e, DeepSeq f) => DeepSeq (a, b, c, d, e, f)

(DeepSeq a, DeepSeq b, DeepSeq c, DeepSeq d, DeepSeq e, DeepSeq f, DeepSeq g) => DeepSeq (a, b, c, d, e, f, g)

deepseq :: DeepSeq a => a -> b -> b

Evaluates its first argument to normal form, and then returns its second argument as the result.

($!!) :: DeepSeq a => (a -> b) -> a -> b

The deep analogue of $!.

force :: DeepSeq a => a -> a

Evaluates its argument to normal form, and then return it.