Safe Haskell	None
Language	Haskell2010

CabalGild.Unstable.Type.Variable

Synopsis

data Variable
- = Arch Arch
- | Flag FlagName
- | Impl CompilerFlavor (Maybe VersionRange)
- | Os OS
parseVariable :: CabalParsing m => m Variable
parseArch :: CabalParsing m => m Arch
parseFlag :: CabalParsing m => m FlagName
parseImpl :: CabalParsing m => m (CompilerFlavor, Maybe VersionRange)
parseOs :: CabalParsing m => m OS
parseIdent :: CabalParsing m => m String
prettyVariable :: Variable -> Doc

Documentation

data Variable Source #

Similar to ConfVar, but with different parsing and pretty-printing behavior.

Constructors

Arch Arch
Flag FlagName
Impl CompilerFlavor (Maybe VersionRange)
Os OS

Instances

Instances details

Show Variable Source #
Instance details Defined in CabalGild.Unstable.Type.Variable Methods showsPrec :: Int -> Variable -> ShowS # show :: Variable -> String # showList :: [Variable] -> ShowS #
Eq Variable Source #
Instance details Defined in CabalGild.Unstable.Type.Variable Methods (==) :: Variable -> Variable -> Bool # (/=) :: Variable -> Variable -> Bool #

parseVariable :: CabalParsing m => m Variable Source #

Parses a Variable. This is generally as permissive as possible.

parseArch :: CabalParsing m => m Arch Source #

Parses an Arch.

parseFlag :: CabalParsing m => m FlagName Source #

Parses a Flag.

parseImpl :: CabalParsing m => m (CompilerFlavor, Maybe VersionRange) Source #

Parses an Impl.

parseOs :: CabalParsing m => m OS Source #

Parses an Os.

parseIdent :: CabalParsing m => m String Source #

Parses an identifier. This is more permissive than anything provided by Cabal. Any run of alphanumeric characters, underscores, or hyphens is considered an identifier.

prettyVariable :: Variable -> Doc Source #

Pretty-prints a Variable.