X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=GHC%2FBase.lhs;h=8dd3124b397c544db7144eebfe6938c329bec769;hb=83e087f3e465913e321ac0edd362238410d81082;hp=c1db36463123d918499a742c7c7151d72286344b;hpb=ca102a0efb1c88bca67462101403e99e448494bc;p=ghc-base.git diff --git a/GHC/Base.lhs b/GHC/Base.lhs index c1db364..8dd3124 100644 --- a/GHC/Base.lhs +++ b/GHC/Base.lhs @@ -63,6 +63,8 @@ Other Prelude modules are much easier with fewer complex dependencies. \begin{code} {-# OPTIONS_GHC -XNoImplicitPrelude #-} +-- -fno-warn-orphans is needed for things like: +-- Orphan rule: "x# -# x#" ALWAYS forall x# :: Int# -# x# x# = 0 {-# OPTIONS_GHC -fno-warn-orphans #-} {-# OPTIONS_HADDOCK hide #-} ----------------------------------------------------------------------------- @@ -85,7 +87,6 @@ Other Prelude modules are much easier with fewer complex dependencies. module GHC.Base ( module GHC.Base, - module GHC.Bool, module GHC.Classes, module GHC.Generics, module GHC.Ordering, @@ -96,7 +97,6 @@ module GHC.Base where import GHC.Types -import GHC.Bool import GHC.Classes import GHC.Generics import GHC.Ordering @@ -171,7 +171,7 @@ Instances of 'Functor' should satisfy the following laws: > fmap (f . g) == fmap f . fmap g The instances of 'Functor' for lists, 'Data.Maybe.Maybe' and 'System.IO.IO' -defined in the "Prelude" satisfy these laws. +satisfy these laws. -} class Functor f where @@ -237,24 +237,6 @@ class Monad m where %********************************************************* \begin{code} --- do explicitly: deriving (Eq, Ord) --- to avoid weird names like con2tag_[]# - -instance (Eq a) => Eq [a] where - {-# SPECIALISE instance Eq [Char] #-} - [] == [] = True - (x:xs) == (y:ys) = x == y && xs == ys - _xs == _ys = False - -instance (Ord a) => Ord [a] where - {-# SPECIALISE instance Ord [Char] #-} - compare [] [] = EQ - compare [] (_:_) = LT - compare (_:_) [] = GT - compare (x:xs) (y:ys) = case compare x y of - EQ -> compare xs ys - other -> other - instance Functor [] where fmap = map @@ -377,7 +359,7 @@ map f (x:xs) = f x : map f xs -- Note eta expanded mapFB :: (elt -> lst -> lst) -> (a -> elt) -> a -> lst -> lst {-# INLINE [0] mapFB #-} -mapFB c f x ys = c (f x) ys +mapFB c f = \x ys -> c (f x) ys -- The rules for map work like this. -- @@ -455,33 +437,6 @@ otherwise = True -- type String = [Char] -{-| The character type 'Char' is an enumeration whose values represent -Unicode (or equivalently ISO\/IEC 10646) characters -(see for details). -This set extends the ISO 8859-1 (Latin-1) character set -(the first 256 charachers), which is itself an extension of the ASCII -character set (the first 128 characters). -A character literal in Haskell has type 'Char'. - -To convert a 'Char' to or from the corresponding 'Int' value defined -by Unicode, use 'Prelude.toEnum' and 'Prelude.fromEnum' from the -'Prelude.Enum' class respectively (or equivalently 'ord' and 'chr'). --} - --- We don't use deriving for Eq and Ord, because for Ord the derived --- instance defines only compare, which takes two primops. Then --- '>' uses compare, and therefore takes two primops instead of one. - -instance Eq Char where - (C# c1) == (C# c2) = c1 `eqChar#` c2 - (C# c1) /= (C# c2) = c1 `neChar#` c2 - -instance Ord Char where - (C# c1) > (C# c2) = c1 `gtChar#` c2 - (C# c1) >= (C# c2) = c1 `geChar#` c2 - (C# c1) <= (C# c2) = c1 `leChar#` c2 - (C# c1) < (C# c2) = c1 `ltChar#` c2 - {-# RULES "x# `eqChar#` x#" forall x#. x# `eqChar#` x# = True "x# `neChar#` x#" forall x#. x# `neChar#` x# = False