CabalLenses.CondVars

Documentation

data CondVars

The variables that are used to resolve the conditionals inside of the cabal file. Holds the enable state of the cabal flags, the used OS, ARCH, CompilerFlavor and compiler version.

Constructors

CondVars

Fields

• flags :: FlagMap

  the enable state of the flags, initialized with the default flag values in the cabal file

• os :: OS

  the used OS, by default the one cabal was build on

• arch :: Arch

  the used ARCH, by default the one cabal was build on

• compilerFlavor :: CompilerFlavor

  the used CompilerFlavor, by default the one cabal was build on

• compilerVersion :: Maybe Version

  the user specified compiler version

Instances

Show CondVars

Methods

showsPrec :: Int -> CondVars -> ShowS

show :: CondVars -> String

showList :: [CondVars] -> ShowS

fromDefaults :: GenericPackageDescription -> CondVars

Create a CondVars from the default flags of the cabal package description. The os, arch and compilerFlavor fields are initialized by the ones the cabal library was build on.

enableFlag :: FlagName -> CondVars -> CondVars

Enable the given flag in CondVars.

disableFlag :: FlagName -> CondVars -> CondVars

Disable the given flag in CondVars.

eval :: CondVars -> Condition ConfVar -> Bool

Evaluate the Condition using the CondVars.