foundation-0.0.30: Alternative prelude with batteries and no dependencies

License | BSD-style
Maintainer | foundation
Stability | experimental
Portability | portable
Safe Haskell | None
Language | Haskell2010

Foundation.System.Info

Contents

- Operation System info
- CPU info
- Compiler info

Description

Synopsis

- data OS
  - = Windows
  - | OSX
  - | Linux
  - | Android
  - | BSD
- os :: Either [Char] OS
- data Arch
  - = I386
  - | X86_64
  - | PowerPC
  - | PowerPC64
  - | Sparc
  - | Sparc64
  - | ARM
  - | ARM64
- arch :: Either [Char] Arch
- cpus :: IO Int
- data Endianness
  - = LittleEndian
  - | BigEndian
- endianness :: Endianness
- compilerName :: String
- compilerVersion :: Version
- data Version = Version {
  - versionBranch :: [Int]
  - versionTags :: [String]
  }

# Operation System info

data OS Source #

Constructors

Windows |
OSX |
Linux |
Android |
BSD |

#### Instances

Instances details

Data OS Source # |

Instance details

Defined in Foundation.System.Info

Methods

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

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

toConstr :: OS -> Constr Source #

dataTypeOf :: OS -> DataType Source #

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

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

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

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

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

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

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

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

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

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

Bounded OS Source # |
Instance details Defined in Foundation.System.Info Methods minBound :: OS Source # maxBound :: OS Source #
Enum OS Source # |
Instance details Defined in Foundation.System.Info Methods succ :: OS -> OS Source # pred :: OS -> OS Source # toEnum :: Int -> OS Source # fromEnum :: OS -> Int Source # enumFrom :: OS -> [OS] Source # enumFromThen :: OS -> OS -> [OS] Source # enumFromTo :: OS -> OS -> [OS] Source # enumFromThenTo :: OS -> OS -> OS -> [OS] Source #
Show OS Source # |
Instance details Defined in Foundation.System.Info Methods showsPrec :: Int -> OS -> ShowS Source # show :: OS -> String Source # showList :: [OS] -> ShowS Source #
Eq OS Source # |
Instance details Defined in Foundation.System.Info Methods (==) :: OS -> OS -> Bool Source # (/=) :: OS -> OS -> Bool Source #
Ord OS Source # |
Instance details Defined in Foundation.System.Info Methods compare :: OS -> OS -> Ordering Source # (<) :: OS -> OS -> Bool Source # (<=) :: OS -> OS -> Bool Source # (>) :: OS -> OS -> Bool Source # (>=) :: OS -> OS -> Bool Source # max :: OS -> OS -> OS Source # min :: OS -> OS -> OS Source #

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.

Constructors

I386 |
X86_64 |
PowerPC |
PowerPC64 |
Sparc |
Sparc64 |
ARM |
ARM64 |

#### Instances

Instances details

Data Arch Source # |

Instance details

Defined in Foundation.System.Info

Methods

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

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

toConstr :: Arch -> Constr Source #

dataTypeOf :: Arch -> DataType Source #

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

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

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

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

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

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

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

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

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

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

Bounded Arch Source # |
Instance details Defined in Foundation.System.Info Methods minBound :: Arch Source # maxBound :: Arch Source #
Enum Arch Source # |
Instance details Defined in Foundation.System.Info Methods succ :: Arch -> Arch Source # pred :: Arch -> Arch Source # toEnum :: Int -> Arch Source # fromEnum :: Arch -> Int Source # enumFrom :: Arch -> [Arch] Source # enumFromThen :: Arch -> Arch -> [Arch] Source # enumFromTo :: Arch -> Arch -> [Arch] Source # enumFromThenTo :: Arch -> Arch -> Arch -> [Arch] Source #
Show Arch Source # |
Instance details Defined in Foundation.System.Info Methods showsPrec :: Int -> Arch -> ShowS Source # show :: Arch -> String Source # showList :: [Arch] -> ShowS Source #
Eq Arch Source # |
Instance details Defined in Foundation.System.Info Methods (==) :: Arch -> Arch -> Bool Source # (/=) :: Arch -> Arch -> Bool Source #
Ord Arch Source # |
Instance details Defined in Foundation.System.Info Methods compare :: Arch -> Arch -> Ordering Source # (<) :: Arch -> Arch -> Bool Source # (<=) :: Arch -> Arch -> Bool Source # (>) :: Arch -> Arch -> Bool Source # (>=) :: Arch -> Arch -> Bool Source # max :: Arch -> Arch -> Arch Source # min :: Arch -> Arch -> Arch Source #

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

data Endianness Source #

Constructors

LittleEndian |
BigEndian |

#### Instances

Instances details

Show Endianness |
Instance details Defined in Basement.Endianness Methods showsPrec :: Int -> Endianness -> ShowS Source # show :: Endianness -> String Source # showList :: [Endianness] -> ShowS Source #
Eq Endianness |
Instance details Defined in Basement.Endianness Methods (==) :: Endianness -> Endianness -> Bool Source # (/=) :: Endianness -> Endianness -> Bool Source #

endianness :: Endianness Source #

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 Source #

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

#### Example

Expand

    ghci> compilerVersion
    Version {versionBranch = [8,8], versionTags = []}

data Version Source #

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

Instances details

Data Version | Since: base-4.7.0.0

Instance details

Defined in GHC.Internal.Data.Data

Methods

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

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

toConstr :: Version -> Constr Source #

dataTypeOf :: Version -> DataType Source #

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

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

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

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

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

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

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

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

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

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

Generic Version |

Instance details

Defined in GHC.Internal.Data.Version

Associated Types

type Rep Version | Since: base-4.9.0.0

Instance details

Defined in GHC.Internal.Data.Version

type Rep Version = D1 ('MetaData "Version" "GHC.Internal.Data.Version" "ghc-internal" 'False) (C1 ('MetaCons "Version" 'PrefixI 'True) (S1 ('MetaSel ('Just "versionBranch") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [Int]) :*: S1 ('MetaSel ('Just "versionTags") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [String])))

Methods

from :: Version -> Rep Version x Source #

to :: Rep Version x -> Version Source #

IsList Version | Since: base-4.8.0.0

Instance details

Defined in GHC.Internal.IsList

Associated Types

type Item Version |
Instance details Defined in GHC.Internal.IsList type Item Version = Int

Methods

fromList :: [Item Version] -> Version Source #

fromListN :: Int -> [Item Version] -> Version Source #

toList :: Version -> [Item Version] Source #

Read Version | Since: base-2.1
Instance details Defined in GHC.Internal.Data.Version Methods readsPrec :: Int -> ReadS Version Source # readList :: ReadS [Version] Source # readPrec :: ReadPrec Version Source # readListPrec :: ReadPrec [Version] Source #
Show Version | Since: base-2.1
Instance details Defined in GHC.Internal.Data.Version Methods showsPrec :: Int -> Version -> ShowS Source # show :: Version -> String Source # showList :: [Version] -> ShowS Source #
Eq Version | Since: base-2.1
Instance details Defined in GHC.Internal.Data.Version Methods (==) :: Version -> Version -> Bool Source # (/=) :: Version -> Version -> Bool Source #
Ord Version | Since: base-2.1
Instance details Defined in GHC.Internal.Data.Version Methods compare :: Version -> Version -> Ordering Source # (<) :: Version -> Version -> Bool Source # (<=) :: Version -> Version -> Bool Source # (>) :: Version -> Version -> Bool Source # (>=) :: Version -> Version -> Bool Source # max :: Version -> Version -> Version Source # min :: Version -> Version -> Version Source #
type Rep Version | Since: base-4.9.0.0

Instance details

Defined in GHC.Internal.Data.Version

type Rep Version = D1 ('MetaData "Version" "GHC.Internal.Data.Version" "ghc-internal" 'False) (C1 ('MetaCons "Version" 'PrefixI 'True) (S1 ('MetaSel ('Just "versionBranch") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [Int]) :*: S1 ('MetaSel ('Just "versionTags") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [String])))

type Item Version |
Instance details Defined in GHC.Internal.IsList type Item Version = Int