cabal-install-solver
Safe HaskellSafe-Inferred
LanguageHaskell2010

Distribution.Solver.Modular.Var

Synopsis

Documentation

data Var qpn Source #

The type of variables that play a role in the solver. Note that the tree currently does not use this type directly, and rather has separate tree nodes for the different types of variables. This fits better with the fact that in most cases, these have to be treated differently.

Constructors

P qpn 
F (FN qpn) 
S (SN qpn) 

Instances

Instances details
Functor Var Source # 
Instance details

Defined in Distribution.Solver.Modular.Var

Methods

fmap :: (a -> b) -> Var a -> Var b #

(<$) :: a -> Var b -> Var a #

Show qpn => Show (Var qpn) Source # 
Instance details

Defined in Distribution.Solver.Modular.Var

Methods

showsPrec :: Int -> Var qpn -> ShowS #

show :: Var qpn -> String #

showList :: [Var qpn] -> ShowS #

Eq qpn => Eq (Var qpn) Source # 
Instance details

Defined in Distribution.Solver.Modular.Var

Methods

(==) :: Var qpn -> Var qpn -> Bool #

(/=) :: Var qpn -> Var qpn -> Bool #

Ord qpn => Ord (Var qpn) Source # 
Instance details

Defined in Distribution.Solver.Modular.Var

Methods

compare :: Var qpn -> Var qpn -> Ordering #

(<) :: Var qpn -> Var qpn -> Bool #

(<=) :: Var qpn -> Var qpn -> Bool #

(>) :: Var qpn -> Var qpn -> Bool #

(>=) :: Var qpn -> Var qpn -> Bool #

max :: Var qpn -> Var qpn -> Var qpn #

min :: Var qpn -> Var qpn -> Var qpn #

showVar :: Var QPN -> String Source #

varPN :: Var qpn -> qpn Source #

Extract the package name from a Var