{-# LANGUAGE DataKinds            #-}
{-# LANGUAGE DeriveDataTypeable   #-}
{-# LANGUAGE FlexibleContexts     #-}
{-# LANGUAGE FlexibleInstances    #-}
{-# LANGUAGE TypeApplications     #-}
{-# LANGUAGE TypeFamilies         #-}
{-# LANGUAGE UndecidableInstances #-} -- Wrinkle in Note [Trees That Grow]
                                      -- in module Language.Haskell.Syntax.Extension
{-
(c) The University of Glasgow 2006
(c) The GRASP/AQUA Project, Glasgow University, 1992-1998


GHC.Hs.ImpExp: Abstract syntax: imports, exports, interfaces
-}

module GHC.Hs.ImpExp where

import GHC.Prelude

import GHC.Unit.Module        ( ModuleName, IsBootInterface(..) )
import GHC.Hs.Doc
import GHC.Types.SourceText   ( SourceText(..) )
import GHC.Types.FieldLabel   ( FieldLabel )

import GHC.Utils.Outputable
import GHC.Utils.Panic
import GHC.Types.SrcLoc
import Language.Haskell.Syntax.Extension
import GHC.Hs.Extension
import GHC.Parser.Annotation
import GHC.Types.Name
import GHC.Types.PkgQual

import Data.Data
import Data.Maybe

{-
************************************************************************
*                                                                      *
\subsection{Import and export declaration lists}
*                                                                      *
************************************************************************

One per \tr{import} declaration in a module.
-}

-- | Located Import Declaration
type LImportDecl pass = XRec pass (ImportDecl pass)
        -- ^ When in a list this may have
        --
        --  - 'GHC.Parser.Annotation.AnnKeywordId' : 'GHC.Parser.Annotation.AnnSemi'

        -- For details on above see Note [exact print annotations] in GHC.Parser.Annotation
type instance Anno (ImportDecl (GhcPass p)) = SrcSpanAnnA

-- | If/how an import is 'qualified'.
data ImportDeclQualifiedStyle
  = QualifiedPre  -- ^ 'qualified' appears in prepositive position.
  | QualifiedPost -- ^ 'qualified' appears in postpositive position.
  | NotQualified  -- ^ Not qualified.
  deriving (ImportDeclQualifiedStyle -> ImportDeclQualifiedStyle -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: ImportDeclQualifiedStyle -> ImportDeclQualifiedStyle -> Bool
$c/= :: ImportDeclQualifiedStyle -> ImportDeclQualifiedStyle -> Bool
== :: ImportDeclQualifiedStyle -> ImportDeclQualifiedStyle -> Bool
$c== :: ImportDeclQualifiedStyle -> ImportDeclQualifiedStyle -> Bool
Eq, Typeable ImportDeclQualifiedStyle
ImportDeclQualifiedStyle -> DataType
ImportDeclQualifiedStyle -> Constr
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Data)

-- | Given two possible located 'qualified' tokens, compute a style
-- (in a conforming Haskell program only one of the two can be not
-- 'Nothing'). This is called from "GHC.Parser".
importDeclQualifiedStyle :: Maybe EpaLocation
                         -> Maybe EpaLocation
                         -> (Maybe EpaLocation, ImportDeclQualifiedStyle)
importDeclQualifiedStyle :: Maybe EpaLocation
-> Maybe EpaLocation
-> (Maybe EpaLocation, ImportDeclQualifiedStyle)
importDeclQualifiedStyle Maybe EpaLocation
mPre Maybe EpaLocation
mPost =
  if forall a. Maybe a -> Bool
isJust Maybe EpaLocation
mPre then (Maybe EpaLocation
mPre, ImportDeclQualifiedStyle
QualifiedPre)
  else if forall a. Maybe a -> Bool
isJust Maybe EpaLocation
mPost then (Maybe EpaLocation
mPost,ImportDeclQualifiedStyle
QualifiedPost) else (forall a. Maybe a
Nothing, ImportDeclQualifiedStyle
NotQualified)

-- | Convenience function to answer the question if an import decl. is
-- qualified.
isImportDeclQualified :: ImportDeclQualifiedStyle -> Bool
isImportDeclQualified :: ImportDeclQualifiedStyle -> Bool
isImportDeclQualified ImportDeclQualifiedStyle
NotQualified = Bool
False
isImportDeclQualified ImportDeclQualifiedStyle
_ = Bool
True

-- | Import Declaration
--
-- A single Haskell @import@ declaration.
data ImportDecl pass
  = ImportDecl {
      forall pass. ImportDecl pass -> XCImportDecl pass
ideclExt       :: XCImportDecl pass,
      forall pass. ImportDecl pass -> SourceText
ideclSourceSrc :: SourceText,
                                 -- Note [Pragma source text] in GHC.Types.SourceText
      forall pass. ImportDecl pass -> XRec pass ModuleName
ideclName      :: XRec pass ModuleName, -- ^ Module name.
      forall pass. ImportDecl pass -> ImportDeclPkgQual pass
ideclPkgQual   :: ImportDeclPkgQual pass,  -- ^ Package qualifier.
      forall pass. ImportDecl pass -> IsBootInterface
ideclSource    :: IsBootInterface,      -- ^ IsBoot <=> {-\# SOURCE \#-} import
      forall pass. ImportDecl pass -> Bool
ideclSafe      :: Bool,          -- ^ True => safe import
      forall pass. ImportDecl pass -> ImportDeclQualifiedStyle
ideclQualified :: ImportDeclQualifiedStyle, -- ^ If/how the import is qualified.
      forall pass. ImportDecl pass -> Bool
ideclImplicit  :: Bool,          -- ^ True => implicit import (of Prelude)
      forall pass. ImportDecl pass -> Maybe (XRec pass ModuleName)
ideclAs        :: Maybe (XRec pass ModuleName),  -- ^ as Module
      forall pass. ImportDecl pass -> Maybe (Bool, XRec pass [LIE pass])
ideclHiding    :: Maybe (Bool, XRec pass [LIE pass])
                                       -- ^ (True => hiding, names)
    }
  | XImportDecl !(XXImportDecl pass)
     -- ^
     --  'GHC.Parser.Annotation.AnnKeywordId's
     --
     --  - 'GHC.Parser.Annotation.AnnImport'
     --
     --  - 'GHC.Parser.Annotation.AnnOpen', 'GHC.Parser.Annotation.AnnClose' for ideclSource
     --
     --  - 'GHC.Parser.Annotation.AnnSafe','GHC.Parser.Annotation.AnnQualified',
     --    'GHC.Parser.Annotation.AnnPackageName','GHC.Parser.Annotation.AnnAs',
     --    'GHC.Parser.Annotation.AnnVal'
     --
     --  - 'GHC.Parser.Annotation.AnnHiding','GHC.Parser.Annotation.AnnOpen',
     --    'GHC.Parser.Annotation.AnnClose' attached
     --     to location in ideclHiding

     -- For details on above see Note [exact print annotations] in GHC.Parser.Annotation

type family ImportDeclPkgQual pass
type instance ImportDeclPkgQual GhcPs = RawPkgQual
type instance ImportDeclPkgQual GhcRn = PkgQual
type instance ImportDeclPkgQual GhcTc = PkgQual

type instance XCImportDecl  GhcPs = EpAnn EpAnnImportDecl
type instance XCImportDecl  GhcRn = NoExtField
type instance XCImportDecl  GhcTc = NoExtField

type instance XXImportDecl  (GhcPass _) = DataConCantHappen

type instance Anno ModuleName = SrcSpanAnnA
type instance Anno [LocatedA (IE (GhcPass p))] = SrcSpanAnnL

-- ---------------------------------------------------------------------

-- API Annotations types

data EpAnnImportDecl = EpAnnImportDecl
  { EpAnnImportDecl -> EpaLocation
importDeclAnnImport    :: EpaLocation
  , EpAnnImportDecl -> Maybe (EpaLocation, EpaLocation)
importDeclAnnPragma    :: Maybe (EpaLocation, EpaLocation)
  , EpAnnImportDecl -> Maybe EpaLocation
importDeclAnnSafe      :: Maybe EpaLocation
  , EpAnnImportDecl -> Maybe EpaLocation
importDeclAnnQualified :: Maybe EpaLocation
  , EpAnnImportDecl -> Maybe EpaLocation
importDeclAnnPackage   :: Maybe EpaLocation
  , EpAnnImportDecl -> Maybe EpaLocation
importDeclAnnAs        :: Maybe EpaLocation
  } deriving (Typeable EpAnnImportDecl
EpAnnImportDecl -> DataType
EpAnnImportDecl -> Constr
(forall b. Data b => b -> b) -> EpAnnImportDecl -> EpAnnImportDecl
forall a.
Typeable a
-> (forall (c :: * -> *).
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-> (forall u. (forall d. Data d => d -> u) -> a -> [u])
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    (forall d. Data d => d -> m d) -> a -> m a)
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    (forall d. Data d => d -> m d) -> a -> m a)
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Data)

-- ---------------------------------------------------------------------

simpleImportDecl :: ModuleName -> ImportDecl GhcPs
simpleImportDecl :: ModuleName -> ImportDecl GhcPs
simpleImportDecl ModuleName
mn = ImportDecl {
      ideclExt :: XCImportDecl GhcPs
ideclExt       = forall a. EpAnn a
noAnn,
      ideclSourceSrc :: SourceText
ideclSourceSrc = SourceText
NoSourceText,
      ideclName :: XRec GhcPs ModuleName
ideclName      = forall a an. a -> LocatedAn an a
noLocA ModuleName
mn,
      ideclPkgQual :: ImportDeclPkgQual GhcPs
ideclPkgQual   = RawPkgQual
NoRawPkgQual,
      ideclSource :: IsBootInterface
ideclSource    = IsBootInterface
NotBoot,
      ideclSafe :: Bool
ideclSafe      = Bool
False,
      ideclImplicit :: Bool
ideclImplicit  = Bool
False,
      ideclQualified :: ImportDeclQualifiedStyle
ideclQualified = ImportDeclQualifiedStyle
NotQualified,
      ideclAs :: Maybe (XRec GhcPs ModuleName)
ideclAs        = forall a. Maybe a
Nothing,
      ideclHiding :: Maybe (Bool, XRec GhcPs [LIE GhcPs])
ideclHiding    = forall a. Maybe a
Nothing
    }

instance (OutputableBndrId p
         , Outputable (Anno (IE (GhcPass p)))
         , Outputable (ImportDeclPkgQual (GhcPass p)))
       => Outputable (ImportDecl (GhcPass p)) where
    ppr :: ImportDecl (GhcPass p) -> SDoc
ppr (ImportDecl { ideclSourceSrc :: forall pass. ImportDecl pass -> SourceText
ideclSourceSrc = SourceText
mSrcText, ideclName :: forall pass. ImportDecl pass -> XRec pass ModuleName
ideclName = XRec (GhcPass p) ModuleName
mod'
                    , ideclPkgQual :: forall pass. ImportDecl pass -> ImportDeclPkgQual pass
ideclPkgQual = ImportDeclPkgQual (GhcPass p)
pkg
                    , ideclSource :: forall pass. ImportDecl pass -> IsBootInterface
ideclSource = IsBootInterface
from, ideclSafe :: forall pass. ImportDecl pass -> Bool
ideclSafe = Bool
safe
                    , ideclQualified :: forall pass. ImportDecl pass -> ImportDeclQualifiedStyle
ideclQualified = ImportDeclQualifiedStyle
qual, ideclImplicit :: forall pass. ImportDecl pass -> Bool
ideclImplicit = Bool
implicit
                    , ideclAs :: forall pass. ImportDecl pass -> Maybe (XRec pass ModuleName)
ideclAs = Maybe (XRec (GhcPass p) ModuleName)
as, ideclHiding :: forall pass. ImportDecl pass -> Maybe (Bool, XRec pass [LIE pass])
ideclHiding = Maybe (Bool, XRec (GhcPass p) [LIE (GhcPass p)])
spec })
      = SDoc -> Int -> SDoc -> SDoc
hang ([SDoc] -> SDoc
hsep [String -> SDoc
text String
"import", IsBootInterface -> SDoc
ppr_imp IsBootInterface
from, Bool -> SDoc
pp_implicit Bool
implicit, Bool -> SDoc
pp_safe Bool
safe,
                    ImportDeclQualifiedStyle -> Bool -> SDoc
pp_qual ImportDeclQualifiedStyle
qual Bool
False, forall a. Outputable a => a -> SDoc
ppr ImportDeclPkgQual (GhcPass p)
pkg, forall a. Outputable a => a -> SDoc
ppr XRec (GhcPass p) ModuleName
mod', ImportDeclQualifiedStyle -> Bool -> SDoc
pp_qual ImportDeclQualifiedStyle
qual Bool
True, forall {a}. Outputable a => Maybe a -> SDoc
pp_as Maybe (XRec (GhcPass p) ModuleName)
as])
             Int
4 (forall {a} {l}.
Outputable a =>
Maybe (Bool, GenLocated l [a]) -> SDoc
pp_spec Maybe (Bool, XRec (GhcPass p) [LIE (GhcPass p)])
spec)
      where
        pp_implicit :: Bool -> SDoc
pp_implicit Bool
False = SDoc
empty
        pp_implicit Bool
True = String -> SDoc
text String
"(implicit)"

        pp_qual :: ImportDeclQualifiedStyle -> Bool -> SDoc
pp_qual ImportDeclQualifiedStyle
QualifiedPre Bool
False = String -> SDoc
text String
"qualified" -- Prepositive qualifier/prepositive position.
        pp_qual ImportDeclQualifiedStyle
QualifiedPost Bool
True = String -> SDoc
text String
"qualified" -- Postpositive qualifier/postpositive position.
        pp_qual ImportDeclQualifiedStyle
QualifiedPre Bool
True = SDoc
empty -- Prepositive qualifier/postpositive position.
        pp_qual ImportDeclQualifiedStyle
QualifiedPost Bool
False = SDoc
empty -- Postpositive qualifier/prepositive position.
        pp_qual ImportDeclQualifiedStyle
NotQualified Bool
_ = SDoc
empty

        pp_safe :: Bool -> SDoc
pp_safe Bool
False   = SDoc
empty
        pp_safe Bool
True    = String -> SDoc
text String
"safe"

        pp_as :: Maybe a -> SDoc
pp_as Maybe a
Nothing   = SDoc
empty
        pp_as (Just a
a)  = String -> SDoc
text String
"as" SDoc -> SDoc -> SDoc
<+> forall a. Outputable a => a -> SDoc
ppr a
a

        ppr_imp :: IsBootInterface -> SDoc
ppr_imp IsBootInterface
IsBoot = case SourceText
mSrcText of
                          SourceText
NoSourceText   -> String -> SDoc
text String
"{-# SOURCE #-}"
                          SourceText String
src -> String -> SDoc
text String
src SDoc -> SDoc -> SDoc
<+> String -> SDoc
text String
"#-}"
        ppr_imp IsBootInterface
NotBoot = SDoc
empty

        pp_spec :: Maybe (Bool, GenLocated l [a]) -> SDoc
pp_spec Maybe (Bool, GenLocated l [a])
Nothing             = SDoc
empty
        pp_spec (Just (Bool
False, (L l
_ [a]
ies))) = forall {a}. Outputable a => [a] -> SDoc
ppr_ies [a]
ies
        pp_spec (Just (Bool
True, (L l
_ [a]
ies))) = String -> SDoc
text String
"hiding" SDoc -> SDoc -> SDoc
<+> forall {a}. Outputable a => [a] -> SDoc
ppr_ies [a]
ies

        ppr_ies :: [a] -> SDoc
ppr_ies []  = String -> SDoc
text String
"()"
        ppr_ies [a]
ies = Char -> SDoc
char Char
'(' SDoc -> SDoc -> SDoc
<+> forall {a}. Outputable a => [a] -> SDoc
interpp'SP [a]
ies SDoc -> SDoc -> SDoc
<+> Char -> SDoc
char Char
')'

{-
************************************************************************
*                                                                      *
\subsection{Imported and exported entities}
*                                                                      *
************************************************************************
-}

-- | A name in an import or export specification which may have
-- adornments. Used primarily for accurate pretty printing of
-- ParsedSource, and API Annotation placement. The
-- 'GHC.Parser.Annotation' is the location of the adornment in
-- the original source.
data IEWrappedName name
  = IEName                (LocatedN name)  -- ^ no extra
  | IEPattern EpaLocation (LocatedN name)  -- ^ pattern X
  | IEType    EpaLocation (LocatedN name)  -- ^ type (:+:)
  deriving (IEWrappedName name -> IEWrappedName name -> Bool
forall name.
Eq name =>
IEWrappedName name -> IEWrappedName name -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: IEWrappedName name -> IEWrappedName name -> Bool
$c/= :: forall name.
Eq name =>
IEWrappedName name -> IEWrappedName name -> Bool
== :: IEWrappedName name -> IEWrappedName name -> Bool
$c== :: forall name.
Eq name =>
IEWrappedName name -> IEWrappedName name -> Bool
Eq,IEWrappedName name -> DataType
IEWrappedName name -> Constr
forall {name}. Data name => Typeable (IEWrappedName name)
forall name. Data name => IEWrappedName name -> DataType
forall name. Data name => IEWrappedName name -> Constr
forall name.
Data name =>
(forall b. Data b => b -> b)
-> IEWrappedName name -> IEWrappedName name
forall name u.
Data name =>
Int -> (forall d. Data d => d -> u) -> IEWrappedName name -> u
forall name u.
Data name =>
(forall d. Data d => d -> u) -> IEWrappedName name -> [u]
forall name r r'.
Data name =>
(r -> r' -> r)
-> r -> (forall d. Data d => d -> r') -> IEWrappedName name -> r
forall name r r'.
Data name =>
(r' -> r -> r)
-> r -> (forall d. Data d => d -> r') -> IEWrappedName name -> r
forall name (m :: * -> *).
(Data name, Monad m) =>
(forall d. Data d => d -> m d)
-> IEWrappedName name -> m (IEWrappedName name)
forall name (m :: * -> *).
(Data name, MonadPlus m) =>
(forall d. Data d => d -> m d)
-> IEWrappedName name -> m (IEWrappedName name)
forall name (c :: * -> *).
Data name =>
(forall b r. Data b => c (b -> r) -> c r)
-> (forall r. r -> c r) -> Constr -> c (IEWrappedName name)
forall name (c :: * -> *).
Data name =>
(forall d b. Data d => c (d -> b) -> d -> c b)
-> (forall g. g -> c g)
-> IEWrappedName name
-> c (IEWrappedName name)
forall name (t :: * -> *) (c :: * -> *).
(Data name, Typeable t) =>
(forall d. Data d => c (t d)) -> Maybe (c (IEWrappedName name))
forall name (t :: * -> * -> *) (c :: * -> *).
(Data name, Typeable t) =>
(forall d e. (Data d, Data e) => c (t d e))
-> Maybe (c (IEWrappedName name))
forall a.
Typeable a
-> (forall (c :: * -> *).
    (forall d b. Data d => c (d -> b) -> d -> c b)
    -> (forall g. g -> c g) -> a -> c a)
-> (forall (c :: * -> *).
    (forall b r. Data b => c (b -> r) -> c r)
    -> (forall r. r -> c r) -> Constr -> c a)
-> (a -> Constr)
-> (a -> DataType)
-> (forall (t :: * -> *) (c :: * -> *).
    Typeable t =>
    (forall d. Data d => c (t d)) -> Maybe (c a))
-> (forall (t :: * -> * -> *) (c :: * -> *).
    Typeable t =>
    (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c a))
-> ((forall b. Data b => b -> b) -> a -> a)
-> (forall r r'.
    (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> a -> r)
-> (forall r r'.
    (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> a -> r)
-> (forall u. (forall d. Data d => d -> u) -> a -> [u])
-> (forall u. Int -> (forall d. Data d => d -> u) -> a -> u)
-> (forall (m :: * -> *).
    Monad m =>
    (forall d. Data d => d -> m d) -> a -> m a)
-> (forall (m :: * -> *).
    MonadPlus m =>
    (forall d. Data d => d -> m d) -> a -> m a)
-> (forall (m :: * -> *).
    MonadPlus m =>
    (forall d. Data d => d -> m d) -> a -> m a)
-> Data a
forall (c :: * -> *).
(forall b r. Data b => c (b -> r) -> c r)
-> (forall r. r -> c r) -> Constr -> c (IEWrappedName name)
forall (c :: * -> *).
(forall d b. Data d => c (d -> b) -> d -> c b)
-> (forall g. g -> c g)
-> IEWrappedName name
-> c (IEWrappedName name)
forall (t :: * -> *) (c :: * -> *).
Typeable t =>
(forall d. Data d => c (t d)) -> Maybe (c (IEWrappedName name))
gmapMo :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d)
-> IEWrappedName name -> m (IEWrappedName name)
$cgmapMo :: forall name (m :: * -> *).
(Data name, MonadPlus m) =>
(forall d. Data d => d -> m d)
-> IEWrappedName name -> m (IEWrappedName name)
gmapMp :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d)
-> IEWrappedName name -> m (IEWrappedName name)
$cgmapMp :: forall name (m :: * -> *).
(Data name, MonadPlus m) =>
(forall d. Data d => d -> m d)
-> IEWrappedName name -> m (IEWrappedName name)
gmapM :: forall (m :: * -> *).
Monad m =>
(forall d. Data d => d -> m d)
-> IEWrappedName name -> m (IEWrappedName name)
$cgmapM :: forall name (m :: * -> *).
(Data name, Monad m) =>
(forall d. Data d => d -> m d)
-> IEWrappedName name -> m (IEWrappedName name)
gmapQi :: forall u.
Int -> (forall d. Data d => d -> u) -> IEWrappedName name -> u
$cgmapQi :: forall name u.
Data name =>
Int -> (forall d. Data d => d -> u) -> IEWrappedName name -> u
gmapQ :: forall u. (forall d. Data d => d -> u) -> IEWrappedName name -> [u]
$cgmapQ :: forall name u.
Data name =>
(forall d. Data d => d -> u) -> IEWrappedName name -> [u]
gmapQr :: forall r r'.
(r' -> r -> r)
-> r -> (forall d. Data d => d -> r') -> IEWrappedName name -> r
$cgmapQr :: forall name r r'.
Data name =>
(r' -> r -> r)
-> r -> (forall d. Data d => d -> r') -> IEWrappedName name -> r
gmapQl :: forall r r'.
(r -> r' -> r)
-> r -> (forall d. Data d => d -> r') -> IEWrappedName name -> r
$cgmapQl :: forall name r r'.
Data name =>
(r -> r' -> r)
-> r -> (forall d. Data d => d -> r') -> IEWrappedName name -> r
gmapT :: (forall b. Data b => b -> b)
-> IEWrappedName name -> IEWrappedName name
$cgmapT :: forall name.
Data name =>
(forall b. Data b => b -> b)
-> IEWrappedName name -> IEWrappedName name
dataCast2 :: forall (t :: * -> * -> *) (c :: * -> *).
Typeable t =>
(forall d e. (Data d, Data e) => c (t d e))
-> Maybe (c (IEWrappedName name))
$cdataCast2 :: forall name (t :: * -> * -> *) (c :: * -> *).
(Data name, Typeable t) =>
(forall d e. (Data d, Data e) => c (t d e))
-> Maybe (c (IEWrappedName name))
dataCast1 :: forall (t :: * -> *) (c :: * -> *).
Typeable t =>
(forall d. Data d => c (t d)) -> Maybe (c (IEWrappedName name))
$cdataCast1 :: forall name (t :: * -> *) (c :: * -> *).
(Data name, Typeable t) =>
(forall d. Data d => c (t d)) -> Maybe (c (IEWrappedName name))
dataTypeOf :: IEWrappedName name -> DataType
$cdataTypeOf :: forall name. Data name => IEWrappedName name -> DataType
toConstr :: IEWrappedName name -> Constr
$ctoConstr :: forall name. Data name => IEWrappedName name -> Constr
gunfold :: forall (c :: * -> *).
(forall b r. Data b => c (b -> r) -> c r)
-> (forall r. r -> c r) -> Constr -> c (IEWrappedName name)
$cgunfold :: forall name (c :: * -> *).
Data name =>
(forall b r. Data b => c (b -> r) -> c r)
-> (forall r. r -> c r) -> Constr -> c (IEWrappedName name)
gfoldl :: forall (c :: * -> *).
(forall d b. Data d => c (d -> b) -> d -> c b)
-> (forall g. g -> c g)
-> IEWrappedName name
-> c (IEWrappedName name)
$cgfoldl :: forall name (c :: * -> *).
Data name =>
(forall d b. Data d => c (d -> b) -> d -> c b)
-> (forall g. g -> c g)
-> IEWrappedName name
-> c (IEWrappedName name)
Data)

-- | Located name with possible adornment
-- - 'GHC.Parser.Annotation.AnnKeywordId's : 'GHC.Parser.Annotation.AnnType',
--         'GHC.Parser.Annotation.AnnPattern'
type LIEWrappedName name = LocatedA (IEWrappedName name)
-- For details on above see Note [exact print annotations] in GHC.Parser.Annotation


-- | Located Import or Export
type LIE pass = XRec pass (IE pass)
        -- ^ When in a list this may have
        --
        --  - 'GHC.Parser.Annotation.AnnKeywordId' : 'GHC.Parser.Annotation.AnnComma'

        -- For details on above see Note [exact print annotations] in GHC.Parser.Annotation
type instance Anno (IE (GhcPass p)) = SrcSpanAnnA

-- | Imported or exported entity.
data IE pass
  = IEVar       (XIEVar pass) (LIEWrappedName (IdP pass))
        -- ^ Imported or Exported Variable

  | IEThingAbs  (XIEThingAbs pass) (LIEWrappedName (IdP pass))
        -- ^ Imported or exported Thing with Absent list
        --
        -- The thing is a Class/Type (can't tell)
        --  - 'GHC.Parser.Annotation.AnnKeywordId's : 'GHC.Parser.Annotation.AnnPattern',
        --             'GHC.Parser.Annotation.AnnType','GHC.Parser.Annotation.AnnVal'

        -- For details on above see Note [exact print annotations] in GHC.Parser.Annotation
        -- See Note [Located RdrNames] in GHC.Hs.Expr
  | IEThingAll  (XIEThingAll pass) (LIEWrappedName (IdP pass))
        -- ^ Imported or exported Thing with All imported or exported
        --
        -- The thing is a Class/Type and the All refers to methods/constructors
        --
        -- - 'GHC.Parser.Annotation.AnnKeywordId's : 'GHC.Parser.Annotation.AnnOpen',
        --       'GHC.Parser.Annotation.AnnDotdot','GHC.Parser.Annotation.AnnClose',
        --                                 'GHC.Parser.Annotation.AnnType'

        -- For details on above see Note [exact print annotations] in GHC.Parser.Annotation
        -- See Note [Located RdrNames] in GHC.Hs.Expr

  | IEThingWith (XIEThingWith pass)
                (LIEWrappedName (IdP pass))
                IEWildcard
                [LIEWrappedName (IdP pass)]
        -- ^ Imported or exported Thing With given imported or exported
        --
        -- The thing is a Class/Type and the imported or exported things are
        -- methods/constructors and record fields; see Note [IEThingWith]
        -- - 'GHC.Parser.Annotation.AnnKeywordId's : 'GHC.Parser.Annotation.AnnOpen',
        --                                   'GHC.Parser.Annotation.AnnClose',
        --                                   'GHC.Parser.Annotation.AnnComma',
        --                                   'GHC.Parser.Annotation.AnnType'

        -- For details on above see Note [exact print annotations] in GHC.Parser.Annotation
  | IEModuleContents  (XIEModuleContents pass) (XRec pass ModuleName)
        -- ^ Imported or exported module contents
        --
        -- (Export Only)
        --
        -- - 'GHC.Parser.Annotation.AnnKeywordId's : 'GHC.Parser.Annotation.AnnModule'

        -- For details on above see Note [exact print annotations] in GHC.Parser.Annotation
  | IEGroup             (XIEGroup pass) Int (LHsDoc pass) -- ^ Doc section heading
  | IEDoc               (XIEDoc pass) (LHsDoc pass)       -- ^ Some documentation
  | IEDocNamed          (XIEDocNamed pass) String    -- ^ Reference to named doc
  | XIE !(XXIE pass)

type instance XIEVar             GhcPs = NoExtField
type instance XIEVar             GhcRn = NoExtField
type instance XIEVar             GhcTc = NoExtField

type instance XIEThingAbs        (GhcPass _) = EpAnn [AddEpAnn]
type instance XIEThingAll        (GhcPass _) = EpAnn [AddEpAnn]

-- See Note [IEThingWith]
type instance XIEThingWith       (GhcPass 'Parsed)      = EpAnn [AddEpAnn]
type instance XIEThingWith       (GhcPass 'Renamed)     = [Located FieldLabel]
type instance XIEThingWith       (GhcPass 'Typechecked) = NoExtField

type instance XIEModuleContents  GhcPs = EpAnn [AddEpAnn]
type instance XIEModuleContents  GhcRn = NoExtField
type instance XIEModuleContents  GhcTc = NoExtField

type instance XIEGroup           (GhcPass _) = NoExtField
type instance XIEDoc             (GhcPass _) = NoExtField
type instance XIEDocNamed        (GhcPass _) = NoExtField
type instance XXIE               (GhcPass _) = DataConCantHappen

type instance Anno (LocatedA (IE (GhcPass p))) = SrcSpanAnnA

-- | Imported or Exported Wildcard
data IEWildcard = NoIEWildcard | IEWildcard Int deriving (IEWildcard -> IEWildcard -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: IEWildcard -> IEWildcard -> Bool
$c/= :: IEWildcard -> IEWildcard -> Bool
== :: IEWildcard -> IEWildcard -> Bool
$c== :: IEWildcard -> IEWildcard -> Bool
Eq, Typeable IEWildcard
IEWildcard -> DataType
IEWildcard -> Constr
(forall b. Data b => b -> b) -> IEWildcard -> IEWildcard
forall a.
Typeable a
-> (forall (c :: * -> *).
    (forall d b. Data d => c (d -> b) -> d -> c b)
    -> (forall g. g -> c g) -> a -> c a)
-> (forall (c :: * -> *).
    (forall b r. Data b => c (b -> r) -> c r)
    -> (forall r. r -> c r) -> Constr -> c a)
-> (a -> Constr)
-> (a -> DataType)
-> (forall (t :: * -> *) (c :: * -> *).
    Typeable t =>
    (forall d. Data d => c (t d)) -> Maybe (c a))
-> (forall (t :: * -> * -> *) (c :: * -> *).
    Typeable t =>
    (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c a))
-> ((forall b. Data b => b -> b) -> a -> a)
-> (forall r r'.
    (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> a -> r)
-> (forall r r'.
    (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> a -> r)
-> (forall u. (forall d. Data d => d -> u) -> a -> [u])
-> (forall u. Int -> (forall d. Data d => d -> u) -> a -> u)
-> (forall (m :: * -> *).
    Monad m =>
    (forall d. Data d => d -> m d) -> a -> m a)
-> (forall (m :: * -> *).
    MonadPlus m =>
    (forall d. Data d => d -> m d) -> a -> m a)
-> (forall (m :: * -> *).
    MonadPlus m =>
    (forall d. Data d => d -> m d) -> a -> m a)
-> Data a
forall u. Int -> (forall d. Data d => d -> u) -> IEWildcard -> u
forall u. (forall d. Data d => d -> u) -> IEWildcard -> [u]
forall r r'.
(r -> r' -> r)
-> r -> (forall d. Data d => d -> r') -> IEWildcard -> r
forall r r'.
(r' -> r -> r)
-> r -> (forall d. Data d => d -> r') -> IEWildcard -> r
forall (m :: * -> *).
Monad m =>
(forall d. Data d => d -> m d) -> IEWildcard -> m IEWildcard
forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> IEWildcard -> m IEWildcard
forall (c :: * -> *).
(forall b r. Data b => c (b -> r) -> c r)
-> (forall r. r -> c r) -> Constr -> c IEWildcard
forall (c :: * -> *).
(forall d b. Data d => c (d -> b) -> d -> c b)
-> (forall g. g -> c g) -> IEWildcard -> c IEWildcard
forall (t :: * -> *) (c :: * -> *).
Typeable t =>
(forall d. Data d => c (t d)) -> Maybe (c IEWildcard)
forall (t :: * -> * -> *) (c :: * -> *).
Typeable t =>
(forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c IEWildcard)
gmapMo :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> IEWildcard -> m IEWildcard
$cgmapMo :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> IEWildcard -> m IEWildcard
gmapMp :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> IEWildcard -> m IEWildcard
$cgmapMp :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> IEWildcard -> m IEWildcard
gmapM :: forall (m :: * -> *).
Monad m =>
(forall d. Data d => d -> m d) -> IEWildcard -> m IEWildcard
$cgmapM :: forall (m :: * -> *).
Monad m =>
(forall d. Data d => d -> m d) -> IEWildcard -> m IEWildcard
gmapQi :: forall u. Int -> (forall d. Data d => d -> u) -> IEWildcard -> u
$cgmapQi :: forall u. Int -> (forall d. Data d => d -> u) -> IEWildcard -> u
gmapQ :: forall u. (forall d. Data d => d -> u) -> IEWildcard -> [u]
$cgmapQ :: forall u. (forall d. Data d => d -> u) -> IEWildcard -> [u]
gmapQr :: forall r r'.
(r' -> r -> r)
-> r -> (forall d. Data d => d -> r') -> IEWildcard -> r
$cgmapQr :: forall r r'.
(r' -> r -> r)
-> r -> (forall d. Data d => d -> r') -> IEWildcard -> r
gmapQl :: forall r r'.
(r -> r' -> r)
-> r -> (forall d. Data d => d -> r') -> IEWildcard -> r
$cgmapQl :: forall r r'.
(r -> r' -> r)
-> r -> (forall d. Data d => d -> r') -> IEWildcard -> r
gmapT :: (forall b. Data b => b -> b) -> IEWildcard -> IEWildcard
$cgmapT :: (forall b. Data b => b -> b) -> IEWildcard -> IEWildcard
dataCast2 :: forall (t :: * -> * -> *) (c :: * -> *).
Typeable t =>
(forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c IEWildcard)
$cdataCast2 :: forall (t :: * -> * -> *) (c :: * -> *).
Typeable t =>
(forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c IEWildcard)
dataCast1 :: forall (t :: * -> *) (c :: * -> *).
Typeable t =>
(forall d. Data d => c (t d)) -> Maybe (c IEWildcard)
$cdataCast1 :: forall (t :: * -> *) (c :: * -> *).
Typeable t =>
(forall d. Data d => c (t d)) -> Maybe (c IEWildcard)
dataTypeOf :: IEWildcard -> DataType
$cdataTypeOf :: IEWildcard -> DataType
toConstr :: IEWildcard -> Constr
$ctoConstr :: IEWildcard -> Constr
gunfold :: forall (c :: * -> *).
(forall b r. Data b => c (b -> r) -> c r)
-> (forall r. r -> c r) -> Constr -> c IEWildcard
$cgunfold :: forall (c :: * -> *).
(forall b r. Data b => c (b -> r) -> c r)
-> (forall r. r -> c r) -> Constr -> c IEWildcard
gfoldl :: forall (c :: * -> *).
(forall d b. Data d => c (d -> b) -> d -> c b)
-> (forall g. g -> c g) -> IEWildcard -> c IEWildcard
$cgfoldl :: forall (c :: * -> *).
(forall d b. Data d => c (d -> b) -> d -> c b)
-> (forall g. g -> c g) -> IEWildcard -> c IEWildcard
Data)

{-
Note [IEThingWith]
~~~~~~~~~~~~~~~~~~
A definition like

    {-# LANGUAGE DuplicateRecordFields #-}
    module M ( T(MkT, x) ) where
      data T = MkT { x :: Int }

gives rise to this in the output of the parser:

    IEThingWith NoExtField T [MkT, x] NoIEWildcard

But in the renamer we need to attach the correct field label,
because the selector Name is mangled (see Note [FieldLabel] in
GHC.Types.FieldLabel).  Hence we change this to:

    IEThingWith [FieldLabel "x" True $sel:x:MkT)] T [MkT] NoIEWildcard

using the TTG extension field to store the list of fields in renamed syntax
only.  (Record fields always appear in this list, regardless of whether
DuplicateRecordFields was in use at the definition site or not.)

See Note [Representing fields in AvailInfo] in GHC.Types.Avail for more details.
-}

ieName :: IE (GhcPass p) -> IdP (GhcPass p)
ieName :: forall (p :: Pass). IE (GhcPass p) -> IdP (GhcPass p)
ieName (IEVar XIEVar (GhcPass p)
_ (L SrcSpanAnnA
_ IEWrappedName (IdP (GhcPass p))
n))            = forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName (IdP (GhcPass p))
n
ieName (IEThingAbs  XIEThingAbs (GhcPass p)
_ (L SrcSpanAnnA
_ IEWrappedName (IdP (GhcPass p))
n))      = forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName (IdP (GhcPass p))
n
ieName (IEThingWith XIEThingWith (GhcPass p)
_ (L SrcSpanAnnA
_ IEWrappedName (IdP (GhcPass p))
n) IEWildcard
_ [GenLocated SrcSpanAnnA (IEWrappedName (IdP (GhcPass p)))]
_)  = forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName (IdP (GhcPass p))
n
ieName (IEThingAll  XIEThingAll (GhcPass p)
_ (L SrcSpanAnnA
_ IEWrappedName (IdP (GhcPass p))
n))      = forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName (IdP (GhcPass p))
n
ieName IE (GhcPass p)
_ = forall a. String -> a
panic String
"ieName failed pattern match!"

ieNames :: IE (GhcPass p) -> [IdP (GhcPass p)]
ieNames :: forall (p :: Pass). IE (GhcPass p) -> [IdP (GhcPass p)]
ieNames (IEVar       XIEVar (GhcPass p)
_ (L SrcSpanAnnA
_ IEWrappedName (IdP (GhcPass p))
n)   )   = [forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName (IdP (GhcPass p))
n]
ieNames (IEThingAbs  XIEThingAbs (GhcPass p)
_ (L SrcSpanAnnA
_ IEWrappedName (IdP (GhcPass p))
n)   )   = [forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName (IdP (GhcPass p))
n]
ieNames (IEThingAll  XIEThingAll (GhcPass p)
_ (L SrcSpanAnnA
_ IEWrappedName (IdP (GhcPass p))
n)   )   = [forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName (IdP (GhcPass p))
n]
ieNames (IEThingWith XIEThingWith (GhcPass p)
_ (L SrcSpanAnnA
_ IEWrappedName (IdP (GhcPass p))
n) IEWildcard
_ [GenLocated SrcSpanAnnA (IEWrappedName (IdP (GhcPass p)))]
ns) = forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName (IdP (GhcPass p))
n
                                     forall a. a -> [a] -> [a]
: forall a b. (a -> b) -> [a] -> [b]
map (forall name. IEWrappedName name -> name
ieWrappedName forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) [GenLocated SrcSpanAnnA (IEWrappedName (IdP (GhcPass p)))]
ns
-- NB the above case does not include names of field selectors
ieNames (IEModuleContents {})     = []
ieNames (IEGroup          {})     = []
ieNames (IEDoc            {})     = []
ieNames (IEDocNamed       {})     = []

ieWrappedLName :: IEWrappedName name -> LocatedN name
ieWrappedLName :: forall name. IEWrappedName name -> LocatedN name
ieWrappedLName (IEName      LocatedN name
ln) = LocatedN name
ln
ieWrappedLName (IEPattern EpaLocation
_ LocatedN name
ln) = LocatedN name
ln
ieWrappedLName (IEType    EpaLocation
_ LocatedN name
ln) = LocatedN name
ln

ieWrappedName :: IEWrappedName name -> name
ieWrappedName :: forall name. IEWrappedName name -> name
ieWrappedName = forall l e. GenLocated l e -> e
unLoc forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall name. IEWrappedName name -> LocatedN name
ieWrappedLName


lieWrappedName :: LIEWrappedName name -> name
lieWrappedName :: forall name. LIEWrappedName name -> name
lieWrappedName (L SrcSpanAnnA
_ IEWrappedName name
n) = forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName name
n

ieLWrappedName :: LIEWrappedName name -> LocatedN name
ieLWrappedName :: forall name. LIEWrappedName name -> LocatedN name
ieLWrappedName (L SrcSpanAnnA
_ IEWrappedName name
n) = forall name. IEWrappedName name -> LocatedN name
ieWrappedLName IEWrappedName name
n

replaceWrappedName :: IEWrappedName name1 -> name2 -> IEWrappedName name2
replaceWrappedName :: forall name1 name2.
IEWrappedName name1 -> name2 -> IEWrappedName name2
replaceWrappedName (IEName      (L SrcSpanAnn' (EpAnn NameAnn)
l name1
_)) name2
n = forall name. LocatedN name -> IEWrappedName name
IEName      (forall l e. l -> e -> GenLocated l e
L SrcSpanAnn' (EpAnn NameAnn)
l name2
n)
replaceWrappedName (IEPattern EpaLocation
r (L SrcSpanAnn' (EpAnn NameAnn)
l name1
_)) name2
n = forall name. EpaLocation -> LocatedN name -> IEWrappedName name
IEPattern EpaLocation
r (forall l e. l -> e -> GenLocated l e
L SrcSpanAnn' (EpAnn NameAnn)
l name2
n)
replaceWrappedName (IEType    EpaLocation
r (L SrcSpanAnn' (EpAnn NameAnn)
l name1
_)) name2
n = forall name. EpaLocation -> LocatedN name -> IEWrappedName name
IEType    EpaLocation
r (forall l e. l -> e -> GenLocated l e
L SrcSpanAnn' (EpAnn NameAnn)
l name2
n)

replaceLWrappedName :: LIEWrappedName name1 -> name2 -> LIEWrappedName name2
replaceLWrappedName :: forall name1 name2.
LIEWrappedName name1 -> name2 -> LIEWrappedName name2
replaceLWrappedName (L SrcSpanAnnA
l IEWrappedName name1
n) name2
n' = forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
l (forall name1 name2.
IEWrappedName name1 -> name2 -> IEWrappedName name2
replaceWrappedName IEWrappedName name1
n name2
n')

instance OutputableBndrId p => Outputable (IE (GhcPass p)) where
    ppr :: IE (GhcPass p) -> SDoc
ppr (IEVar       XIEVar (GhcPass p)
_     LIEWrappedName (IdP (GhcPass p))
var) = forall a. Outputable a => a -> SDoc
ppr (forall l e. GenLocated l e -> e
unLoc LIEWrappedName (IdP (GhcPass p))
var)
    ppr (IEThingAbs  XIEThingAbs (GhcPass p)
_   LIEWrappedName (IdP (GhcPass p))
thing) = forall a. Outputable a => a -> SDoc
ppr (forall l e. GenLocated l e -> e
unLoc LIEWrappedName (IdP (GhcPass p))
thing)
    ppr (IEThingAll  XIEThingAll (GhcPass p)
_   LIEWrappedName (IdP (GhcPass p))
thing) = [SDoc] -> SDoc
hcat [forall a. Outputable a => a -> SDoc
ppr (forall l e. GenLocated l e -> e
unLoc LIEWrappedName (IdP (GhcPass p))
thing), String -> SDoc
text String
"(..)"]
    ppr (IEThingWith XIEThingWith (GhcPass p)
flds LIEWrappedName (IdP (GhcPass p))
thing IEWildcard
wc [LIEWrappedName (IdP (GhcPass p))]
withs)
        = forall a. Outputable a => a -> SDoc
ppr (forall l e. GenLocated l e -> e
unLoc LIEWrappedName (IdP (GhcPass p))
thing) SDoc -> SDoc -> SDoc
<> SDoc -> SDoc
parens ([SDoc] -> SDoc
fsep (SDoc -> [SDoc] -> [SDoc]
punctuate SDoc
comma
                                              ([SDoc]
ppWiths forall a. [a] -> [a] -> [a]
++ [SDoc]
ppFields) ))
      where
        ppWiths :: [SDoc]
ppWiths =
          case IEWildcard
wc of
              IEWildcard
NoIEWildcard ->
                forall a b. (a -> b) -> [a] -> [b]
map (forall a. Outputable a => a -> SDoc
ppr forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) [LIEWrappedName (IdP (GhcPass p))]
withs
              IEWildcard Int
pos ->
                let ([SDoc]
bs, [SDoc]
as) = forall a. Int -> [a] -> ([a], [a])
splitAt Int
pos (forall a b. (a -> b) -> [a] -> [b]
map (forall a. Outputable a => a -> SDoc
ppr forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) [LIEWrappedName (IdP (GhcPass p))]
withs)
                in [SDoc]
bs forall a. [a] -> [a] -> [a]
++ [String -> SDoc
text String
".."] forall a. [a] -> [a] -> [a]
++ [SDoc]
as
        ppFields :: [SDoc]
ppFields =
          case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @p of
            GhcPass p
GhcRn -> forall a b. (a -> b) -> [a] -> [b]
map forall a. Outputable a => a -> SDoc
ppr XIEThingWith (GhcPass p)
flds
            GhcPass p
_     -> []
    ppr (IEModuleContents XIEModuleContents (GhcPass p)
_ XRec (GhcPass p) ModuleName
mod')
        = String -> SDoc
text String
"module" SDoc -> SDoc -> SDoc
<+> forall a. Outputable a => a -> SDoc
ppr XRec (GhcPass p) ModuleName
mod'
    ppr (IEGroup XIEGroup (GhcPass p)
_ Int
n LHsDoc (GhcPass p)
_)           = String -> SDoc
text (String
"<IEGroup: " forall a. [a] -> [a] -> [a]
++ forall a. Show a => a -> String
show Int
n forall a. [a] -> [a] -> [a]
++ String
">")
    ppr (IEDoc XIEDoc (GhcPass p)
_ LHsDoc (GhcPass p)
doc)             = forall a. Outputable a => a -> SDoc
ppr LHsDoc (GhcPass p)
doc
    ppr (IEDocNamed XIEDocNamed (GhcPass p)
_ String
string)     = String -> SDoc
text (String
"<IEDocNamed: " forall a. [a] -> [a] -> [a]
++ String
string forall a. [a] -> [a] -> [a]
++ String
">")

instance (HasOccName name) => HasOccName (IEWrappedName name) where
  occName :: IEWrappedName name -> OccName
occName IEWrappedName name
w = forall name. HasOccName name => name -> OccName
occName (forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName name
w)

instance (OutputableBndr name) => OutputableBndr (IEWrappedName name) where
  pprBndr :: BindingSite -> IEWrappedName name -> SDoc
pprBndr BindingSite
bs   IEWrappedName name
w = forall a. OutputableBndr a => BindingSite -> a -> SDoc
pprBndr BindingSite
bs   (forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName name
w)
  pprPrefixOcc :: IEWrappedName name -> SDoc
pprPrefixOcc IEWrappedName name
w = forall a. OutputableBndr a => a -> SDoc
pprPrefixOcc (forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName name
w)
  pprInfixOcc :: IEWrappedName name -> SDoc
pprInfixOcc  IEWrappedName name
w = forall a. OutputableBndr a => a -> SDoc
pprInfixOcc  (forall name. IEWrappedName name -> name
ieWrappedName IEWrappedName name
w)

instance (OutputableBndr name) => Outputable (IEWrappedName name) where
  ppr :: IEWrappedName name -> SDoc
ppr (IEName      LocatedN name
n) = forall a. OutputableBndr a => a -> SDoc
pprPrefixOcc (forall l e. GenLocated l e -> e
unLoc LocatedN name
n)
  ppr (IEPattern EpaLocation
_ LocatedN name
n) = String -> SDoc
text String
"pattern" SDoc -> SDoc -> SDoc
<+> forall a. OutputableBndr a => a -> SDoc
pprPrefixOcc (forall l e. GenLocated l e -> e
unLoc LocatedN name
n)
  ppr (IEType    EpaLocation
_ LocatedN name
n) = String -> SDoc
text String
"type"    SDoc -> SDoc -> SDoc
<+> forall a. OutputableBndr a => a -> SDoc
pprPrefixOcc (forall l e. GenLocated l e -> e
unLoc LocatedN name
n)

pprImpExp :: (HasOccName name, OutputableBndr name) => name -> SDoc
pprImpExp :: forall name. (HasOccName name, OutputableBndr name) => name -> SDoc
pprImpExp name
name = SDoc
type_pref SDoc -> SDoc -> SDoc
<+> forall a. OutputableBndr a => a -> SDoc
pprPrefixOcc name
name
    where
    occ :: OccName
occ = forall name. HasOccName name => name -> OccName
occName name
name
    type_pref :: SDoc
type_pref | OccName -> Bool
isTcOcc OccName
occ Bool -> Bool -> Bool
&& OccName -> Bool
isSymOcc OccName
occ = String -> SDoc
text String
"type"
              | Bool
otherwise                   = SDoc
empty