Language.Haskell.Liquid.GHC.Types

Documentation

newtype StableName

A StableName is virtually isomorphic to a GHC's Name but crucially we don't use the Eq instance defined on a Name because it's Unique-based. In particular, GHC doesn't guarantee that if we load an interface multiple times we would get the same Unique for the same Name, and this is a problem when we rely on Names to be the same when we call isExportedVar, which used to use a NameSet derived from the '[AvailInfo]'. As the name implies, a NameSet uses a Names Unique for duplicate detection and indexing, and this would lead to Vars being resolved to a Name which is basically the same, but it has a different Unique, and that would cause the lookup inside the NameSet to fail.

Constructors

MkStableName

Fields

• unStableName :: Name

Instances

Generic StableName

Defined in Language.Haskell.Liquid.GHC.Types

Associated Types

type Rep StableName :: Type -> Type

Methods

from :: StableName -> Rep StableName x

to :: Rep StableName x -> StableName

Show StableName

Defined in Language.Haskell.Liquid.GHC.Types

Methods

showsPrec :: Int -> StableName -> ShowS

show :: StableName -> String

showList :: [StableName] -> ShowS

Eq StableName

Defined in Language.Haskell.Liquid.GHC.Types

Methods

(==) :: StableName -> StableName -> Bool

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

Hashable StableName

Defined in Language.Haskell.Liquid.GHC.Types

Methods

hashWithSalt :: Int -> StableName -> Int

hash :: StableName -> Int

type Rep StableName

Defined in Language.Haskell.Liquid.GHC.Types

type Rep StableName = D1 ('MetaData "StableName" "Language.Haskell.Liquid.GHC.Types" "liquidhaskell-boot-0.9.2.5.0-JuBNLAGIRFD6ItsPyAO3oF" 'True) (C1 ('MetaCons "MkStableName" 'PrefixI 'True) (S1 ('MetaSel ('Just "unStableName") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Name)))

mkStableName :: Name -> StableName

Creates a new StableName out of a Name.

availsToStableNameSet :: [AvailInfo] -> HashSet StableName

Converts a list of AvailInfo into a "StableNameSet", similarly to what availsToNameSet would do.

data MGIModGuts

Datatype For Holding GHC ModGuts ------------------------------------------

Constructors

MI

Fields

• mgi_binds :: !CoreProgram
• mgi_module :: !Module
• mgi_tcs :: ![TyCon]
• mgi_exports :: !(HashSet StableName)
• mgi_cls_inst :: !(Maybe [ClsInst])

miModGuts :: Maybe [ClsInst] -> ModGuts -> MGIModGuts

mgiNamestring :: MGIModGuts -> String