Unique

Main data types

data Unique

Unique identifier.

The type of unique identifiers that are used in many places in GHC for fast ordering and equality tests. You should generate these with the functions from the UniqSupply module

These are sometimes also referred to as "keys" in comments in GHC.

Instances

Eq Unique

Defined in Unique

Methods

(==) :: Unique -> Unique -> Bool

(/=) :: Unique -> Unique -> Bool

Show Unique

Defined in Unique

Methods

showsPrec :: Int -> Unique -> ShowS

show :: Unique -> String

showList :: [Unique] -> ShowS

Outputable Unique

Defined in Unique

Methods

ppr :: Unique -> SDoc

pprPrec :: Rational -> Unique -> SDoc

Uniquable Unique

Defined in Unique

Methods

getUnique :: Unique -> Unique

class Uniquable a where

Class of things that we can obtain a Unique from

Methods

getUnique :: a -> Unique

Instances

Uniquable Int

Defined in Unique

Methods

getUnique :: Int -> Unique

Uniquable Name

Defined in Name

Methods

getUnique :: Name -> Unique

Uniquable OccName

Defined in OccName

Methods

getUnique :: OccName -> Unique

Uniquable TyCon

Defined in TyCon

Methods

getUnique :: TyCon -> Unique

Uniquable FastString

Defined in Unique

Methods

getUnique :: FastString -> Unique

Uniquable ComponentId

Defined in Module

Methods

getUnique :: ComponentId -> Unique

Uniquable InstalledUnitId

Defined in Module

Methods

getUnique :: InstalledUnitId -> Unique

Uniquable UnitId

Defined in Module

Methods

getUnique :: UnitId -> Unique

Uniquable ModuleName

Defined in Module

Methods

getUnique :: ModuleName -> Unique

Uniquable Module

Defined in Module

Methods

getUnique :: Module -> Unique

Uniquable Unique

Defined in Unique

Methods

getUnique :: Unique -> Unique

Uniquable PackageName

Defined in PackageConfig

Methods

getUnique :: PackageName -> Unique

Uniquable SourcePackageId

Defined in PackageConfig

Methods

getUnique :: SourcePackageId -> Unique

Uniquable Var

Defined in Var

Methods

getUnique :: Var -> Unique

Uniquable PatSyn

Defined in PatSyn

Methods

getUnique :: PatSyn -> Unique

Uniquable DataCon

Defined in DataCon

Methods

getUnique :: DataCon -> Unique

Uniquable ConLike

Defined in ConLike

Methods

getUnique :: ConLike -> Unique

Uniquable CoAxiomRule

Defined in CoAxiom

Methods

getUnique :: CoAxiomRule -> Unique

Uniquable Class

Defined in Class

Methods

getUnique :: Class -> Unique

Uniquable EvBindsVar

Defined in TcEvidence

Methods

getUnique :: EvBindsVar -> Unique

Uniquable name => Uniquable (AnnTarget name)

Defined in Annotations

Methods

getUnique :: AnnTarget name -> Unique

Uniquable (CoAxiom br)

Defined in CoAxiom

Methods

getUnique :: CoAxiom br -> Unique

uNIQUE_BITS :: Int

Constructors, destructors and operations on Uniques

hasKey :: Uniquable a => a -> Unique -> Bool

pprUniqueAlways :: Unique -> SDoc

mkUniqueGrimily :: Int -> Unique

getKey :: Unique -> Int

mkUnique :: Char -> Int -> Unique

unpkUnique :: Unique -> (Char, Int)

eqUnique :: Unique -> Unique -> Bool

ltUnique :: Unique -> Unique -> Bool

deriveUnique :: Unique -> Int -> Unique

newTagUnique :: Unique -> Char -> Unique

initTyVarUnique :: Unique

initExitJoinUnique :: Unique

nonDetCmpUnique :: Unique -> Unique -> Ordering

isValidKnownKeyUnique :: Unique -> Bool

The interface file symbol-table encoding assumes that known-key uniques fit in 30-bits; verify this.

See Note [Symbol table representation of names] in BinIface for details.

Making built-in uniques

mkAlphaTyVarUnique :: Int -> Unique

mkPrimOpIdUnique :: Int -> Unique

mkPrimOpWrapperUnique :: Int -> Unique

mkPreludeMiscIdUnique :: Int -> Unique

mkPreludeDataConUnique :: Arity -> Unique

mkPreludeTyConUnique :: Int -> Unique

mkPreludeClassUnique :: Int -> Unique

mkCoVarUnique :: Int -> Unique

mkVarOccUnique :: FastString -> Unique

mkDataOccUnique :: FastString -> Unique

mkTvOccUnique :: FastString -> Unique

mkTcOccUnique :: FastString -> Unique

mkRegSingleUnique :: Int -> Unique

mkRegPairUnique :: Int -> Unique

mkRegClassUnique :: Int -> Unique

mkRegSubUnique :: Int -> Unique

mkCostCentreUnique :: Int -> Unique

mkBuiltinUnique :: Int -> Unique

mkPseudoUniqueD :: Int -> Unique

mkPseudoUniqueE :: Int -> Unique

mkPseudoUniqueH :: Int -> Unique

Deriving uniques

From TyCon name uniques

tyConRepNameUnique :: Unique -> Unique

From DataCon name uniques

dataConWorkerUnique :: Unique -> Unique

dataConTyRepNameUnique :: Unique -> Unique