diff options
Diffstat (limited to 'ghc/compiler/basicTypes/VarSet.lhs')
| -rw-r--r-- | ghc/compiler/basicTypes/VarSet.lhs | 50 |
1 files changed, 24 insertions, 26 deletions
diff --git a/ghc/compiler/basicTypes/VarSet.lhs b/ghc/compiler/basicTypes/VarSet.lhs index 217e3a16fa..9091dfe2b7 100644 --- a/ghc/compiler/basicTypes/VarSet.lhs +++ b/ghc/compiler/basicTypes/VarSet.lhs @@ -5,7 +5,7 @@ \begin{code} module VarSet ( - VarSet, IdSet, GenIdSet, TyVarSet, GenTyVarSet, IdOrTyVarSet, + VarSet, IdSet, TyVarSet, IdOrTyVarSet, emptyVarSet, unitVarSet, mkVarSet, extendVarSet, elemVarSet, varSetElems, @@ -20,7 +20,7 @@ module VarSet ( #include "HsVersions.h" -import Var ( Var, Id, GenId, TyVar, GenTyVar, IdOrTyVar, setVarUnique ) +import Var ( Var, Id, TyVar, IdOrTyVar, setVarUnique ) import Unique ( Uniquable(..), incrUnique ) import UniqSet import Outputable @@ -33,32 +33,30 @@ import Outputable %************************************************************************ \begin{code} -type VarSet fs ft = UniqSet (Var fs ft) -type IdSet = UniqSet Id -type GenIdSet flexi = UniqSet (GenId flexi) -type TyVarSet = UniqSet TyVar -type GenTyVarSet flexi = UniqSet (GenTyVar flexi) -type IdOrTyVarSet = UniqSet IdOrTyVar +type VarSet = UniqSet Var +type IdSet = UniqSet Id +type TyVarSet = UniqSet TyVar +type IdOrTyVarSet = UniqSet IdOrTyVar -emptyVarSet :: VarSet fs ft -intersectVarSet :: VarSet fs ft -> VarSet fs ft -> VarSet fs ft -intersectsVarSet:: VarSet fs ft -> VarSet fs ft -> Bool -- True if non-empty intersection -unionVarSet :: VarSet fs ft -> VarSet fs ft -> VarSet fs ft -unionVarSets :: [VarSet fs ft] -> VarSet fs ft -varSetElems :: VarSet fs ft -> [Var fs ft] -unitVarSet :: Var fs ft -> VarSet fs ft -extendVarSet :: VarSet fs ft -> Var fs ft -> VarSet fs ft -elemVarSet :: Var fs ft -> VarSet fs ft -> Bool -delVarSet :: VarSet fs ft -> Var fs ft -> VarSet fs ft -minusVarSet :: VarSet fs ft -> VarSet fs ft -> VarSet fs ft -isEmptyVarSet :: VarSet fs ft -> Bool -mkVarSet :: [Var fs ft] -> VarSet fs ft -foldVarSet :: (Var fs ft -> a -> a) -> a -> VarSet fs ft -> a -lookupVarSet :: VarSet fs ft -> Var fs ft -> Maybe (Var fs ft) +emptyVarSet :: VarSet +intersectVarSet :: VarSet -> VarSet -> VarSet +intersectsVarSet:: VarSet -> VarSet -> Bool -- True if non-empty intersection +unionVarSet :: VarSet -> VarSet -> VarSet +unionVarSets :: [VarSet] -> VarSet +varSetElems :: VarSet -> [Var] +unitVarSet :: Var -> VarSet +extendVarSet :: VarSet -> Var -> VarSet +elemVarSet :: Var -> VarSet -> Bool +delVarSet :: VarSet -> Var -> VarSet +minusVarSet :: VarSet -> VarSet -> VarSet +isEmptyVarSet :: VarSet -> Bool +mkVarSet :: [Var] -> VarSet +foldVarSet :: (Var -> a -> a) -> a -> VarSet -> a +lookupVarSet :: VarSet -> Var -> Maybe Var -- Returns the set element, which may be -- (==) to the argument, but not the same as -mapVarSet :: (Var fs ft -> Var fs ft) -> VarSet fs ft -> VarSet fs ft -filterVarSet :: (Var fs ft -> Bool) -> VarSet fs ft -> VarSet fs ft +mapVarSet :: (Var -> Var) -> VarSet -> VarSet +filterVarSet :: (Var -> Bool) -> VarSet -> VarSet emptyVarSet = emptyUniqSet unitVarSet = unitUniqSet @@ -80,7 +78,7 @@ filterVarSet = filterUniqSet \end{code} \begin{code} -uniqAway :: VarSet fs ft -> Var fs ft -> Var fs ft +uniqAway :: VarSet -> Var -> Var -- Give the Var a new unique, different to any in the VarSet uniqAway set var = try 1 (incrUnique (getUnique var)) |