foundation-0.0.15: Alternative prelude with batteries and no dependencies

LicenseBSD-style
Maintainerfoundation
Stabilityexperimental
Portabilityportable
Safe HaskellNone
LanguageHaskell2010

Foundation.System.Info

Contents

Description

 

Synopsis

Operation System info

data OS Source #

Constructors

Windows 
OSX 
Linux 
Android 
BSD 

Instances

Bounded OS Source # 

Methods

minBound :: OS #

maxBound :: OS #

Enum OS Source # 

Methods

succ :: OS -> OS #

pred :: OS -> OS #

toEnum :: Int -> OS #

fromEnum :: OS -> Int #

enumFrom :: OS -> [OS] #

enumFromThen :: OS -> OS -> [OS] #

enumFromTo :: OS -> OS -> [OS] #

enumFromThenTo :: OS -> OS -> OS -> [OS] #

Eq OS Source # 

Methods

(==) :: OS -> OS -> Bool #

(/=) :: OS -> OS -> Bool #

Data OS Source # 

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> OS -> c OS #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c OS #

toConstr :: OS -> Constr #

dataTypeOf :: OS -> DataType #

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c OS) #

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c OS) #

gmapT :: (forall b. Data b => b -> b) -> OS -> OS #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> OS -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> OS -> r #

gmapQ :: (forall d. Data d => d -> u) -> OS -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> OS -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> OS -> m OS #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> OS -> m OS #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> OS -> m OS #

Ord OS Source # 

Methods

compare :: OS -> OS -> Ordering #

(<) :: OS -> OS -> Bool #

(<=) :: OS -> OS -> Bool #

(>) :: OS -> OS -> Bool #

(>=) :: OS -> OS -> Bool #

max :: OS -> OS -> OS #

min :: OS -> OS -> OS #

Show OS Source # 

Methods

showsPrec :: Int -> OS -> ShowS #

show :: OS -> String #

showList :: [OS] -> ShowS #

os :: Either [Char] OS Source #

get the operating system on which the program is running.

Either return the known OS or a strict String of the OS name.

This function uses the base's os function.

CPU info

data Arch Source #

Enumeration of the known GHC supported architecture.

Instances

Bounded Arch Source # 
Enum Arch Source # 

Methods

succ :: Arch -> Arch #

pred :: Arch -> Arch #

toEnum :: Int -> Arch #

fromEnum :: Arch -> Int #

enumFrom :: Arch -> [Arch] #

enumFromThen :: Arch -> Arch -> [Arch] #

enumFromTo :: Arch -> Arch -> [Arch] #

enumFromThenTo :: Arch -> Arch -> Arch -> [Arch] #

Eq Arch Source # 

Methods

(==) :: Arch -> Arch -> Bool #

(/=) :: Arch -> Arch -> Bool #

Data Arch Source # 

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Arch -> c Arch #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Arch #

toConstr :: Arch -> Constr #

dataTypeOf :: Arch -> DataType #

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c Arch) #

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Arch) #

gmapT :: (forall b. Data b => b -> b) -> Arch -> Arch #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Arch -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Arch -> r #

gmapQ :: (forall d. Data d => d -> u) -> Arch -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Arch -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Arch -> m Arch #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Arch -> m Arch #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Arch -> m Arch #

Ord Arch Source # 

Methods

compare :: Arch -> Arch -> Ordering #

(<) :: Arch -> Arch -> Bool #

(<=) :: Arch -> Arch -> Bool #

(>) :: Arch -> Arch -> Bool #

(>=) :: Arch -> Arch -> Bool #

max :: Arch -> Arch -> Arch #

min :: Arch -> Arch -> Arch #

Show Arch Source # 

Methods

showsPrec :: Int -> Arch -> ShowS #

show :: Arch -> String #

showList :: [Arch] -> ShowS #

arch :: Either [Char] Arch Source #

get the machine architecture on which the program is running

Either return the known architecture or a Strict String of the architecture name.

This function uses the base's arch function.

cpus :: IO Int Source #

returns the number of CPUs the machine has

endianness :: Endianness #

endianness of the current architecture

Compiler info

compilerName :: String Source #

get the compiler name

get the compilerName from base package but convert it into a strict String

compilerVersion :: Version #

The version of compilerName with which the program was compiled or is being interpreted.

data Version :: * #

A Version represents the version of a software entity.

An instance of Eq is provided, which implements exact equality modulo reordering of the tags in the versionTags field.

An instance of Ord is also provided, which gives lexicographic ordering on the versionBranch fields (i.e. 2.1 > 2.0, 1.2.3 > 1.2.2, etc.). This is expected to be sufficient for many uses, but note that you may need to use a more specific ordering for your versioning scheme. For example, some versioning schemes may include pre-releases which have tags "pre1", "pre2", and so on, and these would need to be taken into account when determining ordering. In some cases, date ordering may be more appropriate, so the application would have to look for date tags in the versionTags field and compare those. The bottom line is, don't always assume that compare and other Ord operations are the right thing for every Version.

Similarly, concrete representations of versions may differ. One possible concrete representation is provided (see showVersion and parseVersion), but depending on the application a different concrete representation may be more appropriate.

Constructors

Version 

Fields

  • versionBranch :: [Int]

    The numeric branch for this version. This reflects the fact that most software versions are tree-structured; there is a main trunk which is tagged with versions at various points (1,2,3...), and the first branch off the trunk after version 3 is 3.1, the second branch off the trunk after version 3 is 3.2, and so on. The tree can be branched arbitrarily, just by adding more digits.

    We represent the branch as a list of Int, so version 3.2.1 becomes [3,2,1]. Lexicographic ordering (i.e. the default instance of Ord for [Int]) gives the natural ordering of branches.

  • versionTags :: [String]

    A version can be tagged with an arbitrary list of strings. The interpretation of the list of tags is entirely dependent on the entity that this version applies to.

Instances

IsList Version

Since: 4.8.0.0

Associated Types

type Item Version :: * #

Eq Version 

Methods

(==) :: Version -> Version -> Bool #

(/=) :: Version -> Version -> Bool #

Data Version 

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Version -> c Version #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Version #

toConstr :: Version -> Constr #

dataTypeOf :: Version -> DataType #

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c Version) #

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Version) #

gmapT :: (forall b. Data b => b -> b) -> Version -> Version #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Version -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Version -> r #

gmapQ :: (forall d. Data d => d -> u) -> Version -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Version -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Version -> m Version #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Version -> m Version #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Version -> m Version #

Ord Version 
Read Version 
Show Version 
Generic Version 

Associated Types

type Rep Version :: * -> * #

Methods

from :: Version -> Rep Version x #

to :: Rep Version x -> Version #

type Rep Version 
type Item Version