{-# LANGUAGE DerivingStrategies #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE ViewPatterns #-}

-- | Manipulations on import lists.
module Ormolu.Imports
  ( normalizeImports,
  )
where

import Data.Bifunctor
import Data.Char (isAlphaNum)
import Data.Function (on)
import Data.List (foldl', nubBy, sortBy, sortOn)
import Data.Map.Strict (Map)
import Data.Map.Strict qualified as M
import GHC.Data.FastString
import GHC.Hs
import GHC.Hs.ImpExp as GHC
import GHC.Types.Name.Reader
import GHC.Types.PkgQual
import GHC.Types.SourceText
import GHC.Types.SrcLoc
import Ormolu.Utils (notImplemented, showOutputable)

-- | Sort and normalize imports.
normalizeImports :: [LImportDecl GhcPs] -> [LImportDecl GhcPs]
normalizeImports :: [LImportDecl GhcPs] -> [LImportDecl GhcPs]
normalizeImports =
  ((ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))
 -> GenLocated SrcSpanAnnA (ImportDecl GhcPs))
-> [(ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))]
-> [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
forall a b. (a -> b) -> [a] -> [b]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap (ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))
-> GenLocated SrcSpanAnnA (ImportDecl GhcPs)
forall a b. (a, b) -> b
snd
    ([(ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))]
 -> [GenLocated SrcSpanAnnA (ImportDecl GhcPs)])
-> ([GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
    -> [(ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))])
-> [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
-> [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Map ImportId (GenLocated SrcSpanAnnA (ImportDecl GhcPs))
-> [(ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))]
forall k a. Map k a -> [(k, a)]
M.toAscList
    (Map ImportId (GenLocated SrcSpanAnnA (ImportDecl GhcPs))
 -> [(ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))])
-> ([GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
    -> Map ImportId (GenLocated SrcSpanAnnA (ImportDecl GhcPs)))
-> [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
-> [(ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (GenLocated SrcSpanAnnA (ImportDecl GhcPs)
 -> GenLocated SrcSpanAnnA (ImportDecl GhcPs)
 -> GenLocated SrcSpanAnnA (ImportDecl GhcPs))
-> [(ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))]
-> Map ImportId (GenLocated SrcSpanAnnA (ImportDecl GhcPs))
forall k a. Ord k => (a -> a -> a) -> [(k, a)] -> Map k a
M.fromListWith LImportDecl GhcPs -> LImportDecl GhcPs -> LImportDecl GhcPs
GenLocated SrcSpanAnnA (ImportDecl GhcPs)
-> GenLocated SrcSpanAnnA (ImportDecl GhcPs)
-> GenLocated SrcSpanAnnA (ImportDecl GhcPs)
combineImports
    ([(ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))]
 -> Map ImportId (GenLocated SrcSpanAnnA (ImportDecl GhcPs)))
-> ([GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
    -> [(ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))])
-> [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
-> Map ImportId (GenLocated SrcSpanAnnA (ImportDecl GhcPs))
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (GenLocated SrcSpanAnnA (ImportDecl GhcPs)
 -> (ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs)))
-> [GenLocated SrcSpanAnnA (ImportDecl GhcPs)]
-> [(ImportId, GenLocated SrcSpanAnnA (ImportDecl GhcPs))]
forall a b. (a -> b) -> [a] -> [b]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap (\GenLocated SrcSpanAnnA (ImportDecl GhcPs)
x -> (LImportDecl GhcPs -> ImportId
importId LImportDecl GhcPs
GenLocated SrcSpanAnnA (ImportDecl GhcPs)
x, LImportDecl GhcPs -> LImportDecl GhcPs
g LImportDecl GhcPs
GenLocated SrcSpanAnnA (ImportDecl GhcPs)
x))
  where
    g :: LImportDecl GhcPs -> LImportDecl GhcPs
    g :: LImportDecl GhcPs -> LImportDecl GhcPs
g (L SrcSpanAnnA
l ImportDecl {Bool
Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
Maybe (XRec GhcPs ModuleName)
ImportDeclPkgQual GhcPs
XCImportDecl GhcPs
XRec GhcPs ModuleName
IsBootInterface
ImportDeclQualifiedStyle
ideclExt :: XCImportDecl GhcPs
ideclName :: XRec GhcPs ModuleName
ideclPkgQual :: ImportDeclPkgQual GhcPs
ideclSource :: IsBootInterface
ideclSafe :: Bool
ideclQualified :: ImportDeclQualifiedStyle
ideclAs :: Maybe (XRec GhcPs ModuleName)
ideclImportList :: Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
ideclExt :: forall pass. ImportDecl pass -> XCImportDecl pass
ideclName :: forall pass. ImportDecl pass -> XRec pass ModuleName
ideclPkgQual :: forall pass. ImportDecl pass -> ImportDeclPkgQual pass
ideclSource :: forall pass. ImportDecl pass -> IsBootInterface
ideclSafe :: forall pass. ImportDecl pass -> Bool
ideclQualified :: forall pass. ImportDecl pass -> ImportDeclQualifiedStyle
ideclAs :: forall pass. ImportDecl pass -> Maybe (XRec pass ModuleName)
ideclImportList :: forall pass.
ImportDecl pass
-> Maybe (ImportListInterpretation, XRec pass [LIE pass])
..}) =
      SrcSpanAnnA
-> ImportDecl GhcPs -> GenLocated SrcSpanAnnA (ImportDecl GhcPs)
forall l e. l -> e -> GenLocated l e
L
        SrcSpanAnnA
l
        ImportDecl
          { ideclImportList :: Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
ideclImportList = (GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)]
 -> GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
-> (ImportListInterpretation,
    GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
-> (ImportListInterpretation,
    GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
forall b c a. (b -> c) -> (a, b) -> (a, c)
forall (p :: * -> * -> *) b c a.
Bifunctor p =>
(b -> c) -> p a b -> p a c
second (([GenLocated SrcSpanAnnA (IE GhcPs)]
 -> [GenLocated SrcSpanAnnA (IE GhcPs)])
-> GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)]
-> GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)]
forall a b.
(a -> b) -> GenLocated SrcSpanAnnL a -> GenLocated SrcSpanAnnL b
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap [LIE GhcPs] -> [LIE GhcPs]
[GenLocated SrcSpanAnnA (IE GhcPs)]
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
normalizeLies) ((ImportListInterpretation,
  GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
 -> (ImportListInterpretation,
     GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)]))
-> Maybe
     (ImportListInterpretation,
      GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
-> Maybe
     (ImportListInterpretation,
      GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
Maybe
  (ImportListInterpretation,
   GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
ideclImportList,
            Bool
Maybe (XRec GhcPs ModuleName)
ImportDeclPkgQual GhcPs
XCImportDecl GhcPs
XRec GhcPs ModuleName
IsBootInterface
ImportDeclQualifiedStyle
ideclExt :: XCImportDecl GhcPs
ideclName :: XRec GhcPs ModuleName
ideclPkgQual :: ImportDeclPkgQual GhcPs
ideclSource :: IsBootInterface
ideclSafe :: Bool
ideclQualified :: ImportDeclQualifiedStyle
ideclAs :: Maybe (XRec GhcPs ModuleName)
ideclExt :: XCImportDecl GhcPs
ideclName :: XRec GhcPs ModuleName
ideclPkgQual :: ImportDeclPkgQual GhcPs
ideclSource :: IsBootInterface
ideclSafe :: Bool
ideclQualified :: ImportDeclQualifiedStyle
ideclAs :: Maybe (XRec GhcPs ModuleName)
..
          }

-- | Combine two import declarations. It should be assumed that 'ImportId's
-- are equal.
combineImports ::
  LImportDecl GhcPs ->
  LImportDecl GhcPs ->
  LImportDecl GhcPs
combineImports :: LImportDecl GhcPs -> LImportDecl GhcPs -> LImportDecl GhcPs
combineImports (L SrcSpanAnnA
lx ImportDecl {Bool
Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
Maybe (XRec GhcPs ModuleName)
ImportDeclPkgQual GhcPs
XCImportDecl GhcPs
XRec GhcPs ModuleName
IsBootInterface
ImportDeclQualifiedStyle
ideclExt :: forall pass. ImportDecl pass -> XCImportDecl pass
ideclName :: forall pass. ImportDecl pass -> XRec pass ModuleName
ideclPkgQual :: forall pass. ImportDecl pass -> ImportDeclPkgQual pass
ideclSource :: forall pass. ImportDecl pass -> IsBootInterface
ideclSafe :: forall pass. ImportDecl pass -> Bool
ideclQualified :: forall pass. ImportDecl pass -> ImportDeclQualifiedStyle
ideclAs :: forall pass. ImportDecl pass -> Maybe (XRec pass ModuleName)
ideclImportList :: forall pass.
ImportDecl pass
-> Maybe (ImportListInterpretation, XRec pass [LIE pass])
ideclExt :: XCImportDecl GhcPs
ideclName :: XRec GhcPs ModuleName
ideclPkgQual :: ImportDeclPkgQual GhcPs
ideclSource :: IsBootInterface
ideclSafe :: Bool
ideclQualified :: ImportDeclQualifiedStyle
ideclAs :: Maybe (XRec GhcPs ModuleName)
ideclImportList :: Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
..}) (L SrcSpanAnnA
_ ImportDecl GhcPs
y) =
  SrcSpanAnnA
-> ImportDecl GhcPs -> GenLocated SrcSpanAnnA (ImportDecl GhcPs)
forall l e. l -> e -> GenLocated l e
L
    SrcSpanAnnA
lx
    ImportDecl
      { ideclImportList :: Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
ideclImportList = case (Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
Maybe
  (ImportListInterpretation,
   GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
ideclImportList, ImportDecl GhcPs
-> Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
forall pass.
ImportDecl pass
-> Maybe (ImportListInterpretation, XRec pass [LIE pass])
GHC.ideclImportList ImportDecl GhcPs
y) of
          (Just (ImportListInterpretation
hiding, L SrcSpanAnnL
l' [GenLocated SrcSpanAnnA (IE GhcPs)]
xs), Just (ImportListInterpretation
_, L SrcSpanAnnL
_ [GenLocated SrcSpanAnnA (IE GhcPs)]
ys)) ->
            (ImportListInterpretation,
 GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
-> Maybe
     (ImportListInterpretation,
      GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
forall a. a -> Maybe a
Just (ImportListInterpretation
hiding, (SrcSpanAnnL
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
-> GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)]
forall l e. l -> e -> GenLocated l e
L SrcSpanAnnL
l' ([LIE GhcPs] -> [LIE GhcPs]
normalizeLies ([GenLocated SrcSpanAnnA (IE GhcPs)]
xs [GenLocated SrcSpanAnnA (IE GhcPs)]
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
forall a. [a] -> [a] -> [a]
++ [GenLocated SrcSpanAnnA (IE GhcPs)]
ys))))
          (Maybe
   (ImportListInterpretation,
    GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)]),
 Maybe
   (ImportListInterpretation,
    GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)]))
_ -> Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
Maybe
  (ImportListInterpretation,
   GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
forall a. Maybe a
Nothing,
        Bool
Maybe (XRec GhcPs ModuleName)
ImportDeclPkgQual GhcPs
XCImportDecl GhcPs
XRec GhcPs ModuleName
IsBootInterface
ImportDeclQualifiedStyle
ideclExt :: XCImportDecl GhcPs
ideclName :: XRec GhcPs ModuleName
ideclPkgQual :: ImportDeclPkgQual GhcPs
ideclSource :: IsBootInterface
ideclSafe :: Bool
ideclQualified :: ImportDeclQualifiedStyle
ideclAs :: Maybe (XRec GhcPs ModuleName)
ideclExt :: XCImportDecl GhcPs
ideclName :: XRec GhcPs ModuleName
ideclPkgQual :: ImportDeclPkgQual GhcPs
ideclSource :: IsBootInterface
ideclSafe :: Bool
ideclQualified :: ImportDeclQualifiedStyle
ideclAs :: Maybe (XRec GhcPs ModuleName)
..
      }

-- | Import id, a collection of all things that justify having a separate
-- import entry. This is used for merging of imports. If two imports have
-- the same 'ImportId' they can be merged.
data ImportId = ImportId
  { ImportId -> Bool
importIsPrelude :: Bool,
    ImportId -> ImportPkgQual
importPkgQual :: ImportPkgQual,
    ImportId -> ModuleName
importIdName :: ModuleName,
    ImportId -> IsBootInterface
importSource :: IsBootInterface,
    ImportId -> Bool
importSafe :: Bool,
    ImportId -> Bool
importQualified :: Bool,
    ImportId -> Maybe ModuleName
importAs :: Maybe ModuleName,
    ImportId -> Maybe ImportListInterpretationOrd
importHiding :: Maybe ImportListInterpretationOrd
  }
  deriving (ImportId -> ImportId -> Bool
(ImportId -> ImportId -> Bool)
-> (ImportId -> ImportId -> Bool) -> Eq ImportId
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
$c== :: ImportId -> ImportId -> Bool
== :: ImportId -> ImportId -> Bool
$c/= :: ImportId -> ImportId -> Bool
/= :: ImportId -> ImportId -> Bool
Eq, Eq ImportId
Eq ImportId =>
(ImportId -> ImportId -> Ordering)
-> (ImportId -> ImportId -> Bool)
-> (ImportId -> ImportId -> Bool)
-> (ImportId -> ImportId -> Bool)
-> (ImportId -> ImportId -> Bool)
-> (ImportId -> ImportId -> ImportId)
-> (ImportId -> ImportId -> ImportId)
-> Ord ImportId
ImportId -> ImportId -> Bool
ImportId -> ImportId -> Ordering
ImportId -> ImportId -> ImportId
forall a.
Eq a =>
(a -> a -> Ordering)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> a)
-> (a -> a -> a)
-> Ord a
$ccompare :: ImportId -> ImportId -> Ordering
compare :: ImportId -> ImportId -> Ordering
$c< :: ImportId -> ImportId -> Bool
< :: ImportId -> ImportId -> Bool
$c<= :: ImportId -> ImportId -> Bool
<= :: ImportId -> ImportId -> Bool
$c> :: ImportId -> ImportId -> Bool
> :: ImportId -> ImportId -> Bool
$c>= :: ImportId -> ImportId -> Bool
>= :: ImportId -> ImportId -> Bool
$cmax :: ImportId -> ImportId -> ImportId
max :: ImportId -> ImportId -> ImportId
$cmin :: ImportId -> ImportId -> ImportId
min :: ImportId -> ImportId -> ImportId
Ord)

data ImportPkgQual
  = -- | The import is not qualified by a package name.
    NoImportPkgQual
  | -- | The import is qualified by an external package name.
    ImportPkgQual LexicalFastString
  | -- | The import is qualified by the current package being built, using the
    -- special @this@ package name.
    ImportPkgQualThis
  deriving stock (ImportPkgQual -> ImportPkgQual -> Bool
(ImportPkgQual -> ImportPkgQual -> Bool)
-> (ImportPkgQual -> ImportPkgQual -> Bool) -> Eq ImportPkgQual
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
$c== :: ImportPkgQual -> ImportPkgQual -> Bool
== :: ImportPkgQual -> ImportPkgQual -> Bool
$c/= :: ImportPkgQual -> ImportPkgQual -> Bool
/= :: ImportPkgQual -> ImportPkgQual -> Bool
Eq, Eq ImportPkgQual
Eq ImportPkgQual =>
(ImportPkgQual -> ImportPkgQual -> Ordering)
-> (ImportPkgQual -> ImportPkgQual -> Bool)
-> (ImportPkgQual -> ImportPkgQual -> Bool)
-> (ImportPkgQual -> ImportPkgQual -> Bool)
-> (ImportPkgQual -> ImportPkgQual -> Bool)
-> (ImportPkgQual -> ImportPkgQual -> ImportPkgQual)
-> (ImportPkgQual -> ImportPkgQual -> ImportPkgQual)
-> Ord ImportPkgQual
ImportPkgQual -> ImportPkgQual -> Bool
ImportPkgQual -> ImportPkgQual -> Ordering
ImportPkgQual -> ImportPkgQual -> ImportPkgQual
forall a.
Eq a =>
(a -> a -> Ordering)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> Bool)
-> (a -> a -> a)
-> (a -> a -> a)
-> Ord a
$ccompare :: ImportPkgQual -> ImportPkgQual -> Ordering
compare :: ImportPkgQual -> ImportPkgQual -> Ordering
$c< :: ImportPkgQual -> ImportPkgQual -> Bool
< :: ImportPkgQual -> ImportPkgQual -> Bool
$c<= :: ImportPkgQual -> ImportPkgQual -> Bool
<= :: ImportPkgQual -> ImportPkgQual -> Bool
$c> :: ImportPkgQual -> ImportPkgQual -> Bool
> :: ImportPkgQual -> ImportPkgQual -> Bool
$c>= :: ImportPkgQual -> ImportPkgQual -> Bool
>= :: ImportPkgQual -> ImportPkgQual -> Bool
$cmax :: ImportPkgQual -> ImportPkgQual -> ImportPkgQual
max :: ImportPkgQual -> ImportPkgQual -> ImportPkgQual
$cmin :: ImportPkgQual -> ImportPkgQual -> ImportPkgQual
min :: ImportPkgQual -> ImportPkgQual -> ImportPkgQual
Ord)

mkImportPkgQual :: RawPkgQual -> ImportPkgQual
mkImportPkgQual :: RawPkgQual -> ImportPkgQual
mkImportPkgQual = \case
  RawPkgQual
NoRawPkgQual -> ImportPkgQual
NoImportPkgQual
  RawPkgQual (StringLiteral -> FastString
sl_fs -> FastString
fs)
    | FastString
fs FastString -> FastString -> Bool
forall a. Eq a => a -> a -> Bool
== String -> FastString
mkFastString String
"this" -> ImportPkgQual
ImportPkgQualThis
    | Bool
otherwise -> LexicalFastString -> ImportPkgQual
ImportPkgQual (FastString -> LexicalFastString
LexicalFastString FastString
fs)

-- | 'ImportListInterpretation' does not have an 'Ord' instance.
newtype ImportListInterpretationOrd = ImportListInterpretationOrd
  { ImportListInterpretationOrd -> ImportListInterpretation
unImportListInterpretationOrd :: ImportListInterpretation
  }
  deriving stock (ImportListInterpretationOrd -> ImportListInterpretationOrd -> Bool
(ImportListInterpretationOrd
 -> ImportListInterpretationOrd -> Bool)
-> (ImportListInterpretationOrd
    -> ImportListInterpretationOrd -> Bool)
-> Eq ImportListInterpretationOrd
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
$c== :: ImportListInterpretationOrd -> ImportListInterpretationOrd -> Bool
== :: ImportListInterpretationOrd -> ImportListInterpretationOrd -> Bool
$c/= :: ImportListInterpretationOrd -> ImportListInterpretationOrd -> Bool
/= :: ImportListInterpretationOrd -> ImportListInterpretationOrd -> Bool
Eq)

instance Ord ImportListInterpretationOrd where
  compare :: ImportListInterpretationOrd
-> ImportListInterpretationOrd -> Ordering
compare = Bool -> Bool -> Ordering
forall a. Ord a => a -> a -> Ordering
compare (Bool -> Bool -> Ordering)
-> (ImportListInterpretationOrd -> Bool)
-> ImportListInterpretationOrd
-> ImportListInterpretationOrd
-> Ordering
forall b c a. (b -> b -> c) -> (a -> b) -> a -> a -> c
`on` ImportListInterpretation -> Bool
toBool (ImportListInterpretation -> Bool)
-> (ImportListInterpretationOrd -> ImportListInterpretation)
-> ImportListInterpretationOrd
-> Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ImportListInterpretationOrd -> ImportListInterpretation
unImportListInterpretationOrd
    where
      toBool :: ImportListInterpretation -> Bool
toBool ImportListInterpretation
Exactly = Bool
False
      toBool ImportListInterpretation
EverythingBut = Bool
True

-- | Obtain an 'ImportId' for a given import.
importId :: LImportDecl GhcPs -> ImportId
importId :: LImportDecl GhcPs -> ImportId
importId (L SrcSpanAnnA
_ ImportDecl {Bool
Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
Maybe (XRec GhcPs ModuleName)
ImportDeclPkgQual GhcPs
XCImportDecl GhcPs
XRec GhcPs ModuleName
IsBootInterface
ImportDeclQualifiedStyle
ideclExt :: forall pass. ImportDecl pass -> XCImportDecl pass
ideclName :: forall pass. ImportDecl pass -> XRec pass ModuleName
ideclPkgQual :: forall pass. ImportDecl pass -> ImportDeclPkgQual pass
ideclSource :: forall pass. ImportDecl pass -> IsBootInterface
ideclSafe :: forall pass. ImportDecl pass -> Bool
ideclQualified :: forall pass. ImportDecl pass -> ImportDeclQualifiedStyle
ideclAs :: forall pass. ImportDecl pass -> Maybe (XRec pass ModuleName)
ideclImportList :: forall pass.
ImportDecl pass
-> Maybe (ImportListInterpretation, XRec pass [LIE pass])
ideclExt :: XCImportDecl GhcPs
ideclName :: XRec GhcPs ModuleName
ideclPkgQual :: ImportDeclPkgQual GhcPs
ideclSource :: IsBootInterface
ideclSafe :: Bool
ideclQualified :: ImportDeclQualifiedStyle
ideclAs :: Maybe (XRec GhcPs ModuleName)
ideclImportList :: Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
..}) =
  ImportId
    { importIsPrelude :: Bool
importIsPrelude = Bool
isPrelude,
      importIdName :: ModuleName
importIdName = ModuleName
moduleName,
      importPkgQual :: ImportPkgQual
importPkgQual = RawPkgQual -> ImportPkgQual
mkImportPkgQual ImportDeclPkgQual GhcPs
RawPkgQual
ideclPkgQual,
      importSource :: IsBootInterface
importSource = IsBootInterface
ideclSource,
      importSafe :: Bool
importSafe = Bool
ideclSafe,
      importQualified :: Bool
importQualified = case ImportDeclQualifiedStyle
ideclQualified of
        ImportDeclQualifiedStyle
QualifiedPre -> Bool
True
        ImportDeclQualifiedStyle
QualifiedPost -> Bool
True
        ImportDeclQualifiedStyle
NotQualified -> Bool
False,
      importAs :: Maybe ModuleName
importAs = GenLocated SrcSpanAnnA ModuleName -> ModuleName
forall l e. GenLocated l e -> e
unLoc (GenLocated SrcSpanAnnA ModuleName -> ModuleName)
-> Maybe (GenLocated SrcSpanAnnA ModuleName) -> Maybe ModuleName
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Maybe (XRec GhcPs ModuleName)
Maybe (GenLocated SrcSpanAnnA ModuleName)
ideclAs,
      importHiding :: Maybe ImportListInterpretationOrd
importHiding = ImportListInterpretation -> ImportListInterpretationOrd
ImportListInterpretationOrd (ImportListInterpretation -> ImportListInterpretationOrd)
-> ((ImportListInterpretation,
     GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
    -> ImportListInterpretation)
-> (ImportListInterpretation,
    GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
-> ImportListInterpretationOrd
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (ImportListInterpretation,
 GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
-> ImportListInterpretation
forall a b. (a, b) -> a
fst ((ImportListInterpretation,
  GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
 -> ImportListInterpretationOrd)
-> Maybe
     (ImportListInterpretation,
      GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
-> Maybe ImportListInterpretationOrd
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Maybe (ImportListInterpretation, XRec GhcPs [LIE GhcPs])
Maybe
  (ImportListInterpretation,
   GenLocated SrcSpanAnnL [GenLocated SrcSpanAnnA (IE GhcPs)])
ideclImportList
    }
  where
    isPrelude :: Bool
isPrelude = ModuleName -> String
moduleNameString ModuleName
moduleName String -> String -> Bool
forall a. Eq a => a -> a -> Bool
== String
"Prelude"
    moduleName :: ModuleName
moduleName = GenLocated SrcSpanAnnA ModuleName -> ModuleName
forall l e. GenLocated l e -> e
unLoc XRec GhcPs ModuleName
GenLocated SrcSpanAnnA ModuleName
ideclName

-- | Normalize a collection of import items.
normalizeLies :: [LIE GhcPs] -> [LIE GhcPs]
normalizeLies :: [LIE GhcPs] -> [LIE GhcPs]
normalizeLies = (GenLocated SrcSpanAnnA (IE GhcPs) -> IEWrappedNameOrd)
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
forall b a. Ord b => (a -> b) -> [a] -> [a]
sortOn (IE GhcPs -> IEWrappedNameOrd
getIewn (IE GhcPs -> IEWrappedNameOrd)
-> (GenLocated SrcSpanAnnA (IE GhcPs) -> IE GhcPs)
-> GenLocated SrcSpanAnnA (IE GhcPs)
-> IEWrappedNameOrd
forall b c a. (b -> c) -> (a -> b) -> a -> c
. GenLocated SrcSpanAnnA (IE GhcPs) -> IE GhcPs
forall l e. GenLocated l e -> e
unLoc) ([GenLocated SrcSpanAnnA (IE GhcPs)]
 -> [GenLocated SrcSpanAnnA (IE GhcPs)])
-> ([GenLocated SrcSpanAnnA (IE GhcPs)]
    -> [GenLocated SrcSpanAnnA (IE GhcPs)])
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs))
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
forall k a. Map k a -> [a]
M.elems (Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs))
 -> [GenLocated SrcSpanAnnA (IE GhcPs)])
-> ([GenLocated SrcSpanAnnA (IE GhcPs)]
    -> Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs)))
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs))
 -> GenLocated SrcSpanAnnA (IE GhcPs)
 -> Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs)))
-> Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs))
-> [GenLocated SrcSpanAnnA (IE GhcPs)]
-> Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs))
forall b a. (b -> a -> b) -> b -> [a] -> b
forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' Map IEWrappedNameOrd (LIE GhcPs)
-> LIE GhcPs -> Map IEWrappedNameOrd (LIE GhcPs)
Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs))
-> GenLocated SrcSpanAnnA (IE GhcPs)
-> Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs))
combine Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs))
forall k a. Map k a
M.empty
  where
    combine ::
      Map IEWrappedNameOrd (LIE GhcPs) ->
      LIE GhcPs ->
      Map IEWrappedNameOrd (LIE GhcPs)
    combine :: Map IEWrappedNameOrd (LIE GhcPs)
-> LIE GhcPs -> Map IEWrappedNameOrd (LIE GhcPs)
combine Map IEWrappedNameOrd (LIE GhcPs)
m (L SrcSpanAnnA
new_l IE GhcPs
new) =
      let wname :: IEWrappedNameOrd
wname = IE GhcPs -> IEWrappedNameOrd
getIewn IE GhcPs
new
          normalizeWNames :: [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
-> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
normalizeWNames =
            (GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
 -> GenLocated SrcSpanAnnA (IEWrappedName GhcPs) -> Bool)
-> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
-> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
forall a. (a -> a -> Bool) -> [a] -> [a]
nubBy (\GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
x GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
y -> LIEWrappedName GhcPs -> LIEWrappedName GhcPs -> Ordering
compareLIewn LIEWrappedName GhcPs
GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
x LIEWrappedName GhcPs
GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
y Ordering -> Ordering -> Bool
forall a. Eq a => a -> a -> Bool
== Ordering
EQ) ([GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
 -> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)])
-> ([GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
    -> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)])
-> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
-> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
 -> GenLocated SrcSpanAnnA (IEWrappedName GhcPs) -> Ordering)
-> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
-> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
forall a. (a -> a -> Ordering) -> [a] -> [a]
sortBy LIEWrappedName GhcPs -> LIEWrappedName GhcPs -> Ordering
GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
-> GenLocated SrcSpanAnnA (IEWrappedName GhcPs) -> Ordering
compareLIewn
          alter :: Maybe (GenLocated SrcSpanAnnA (IE GhcPs))
-> Maybe (GenLocated SrcSpanAnnA (IE GhcPs))
alter = \case
            Maybe (GenLocated SrcSpanAnnA (IE GhcPs))
Nothing -> GenLocated SrcSpanAnnA (IE GhcPs)
-> Maybe (GenLocated SrcSpanAnnA (IE GhcPs))
forall a. a -> Maybe a
Just (GenLocated SrcSpanAnnA (IE GhcPs)
 -> Maybe (GenLocated SrcSpanAnnA (IE GhcPs)))
-> (IE GhcPs -> GenLocated SrcSpanAnnA (IE GhcPs))
-> IE GhcPs
-> Maybe (GenLocated SrcSpanAnnA (IE GhcPs))
forall b c a. (b -> c) -> (a -> b) -> a -> c
. SrcSpanAnnA -> IE GhcPs -> GenLocated SrcSpanAnnA (IE GhcPs)
forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
new_l (IE GhcPs -> Maybe (GenLocated SrcSpanAnnA (IE GhcPs)))
-> IE GhcPs -> Maybe (GenLocated SrcSpanAnnA (IE GhcPs))
forall a b. (a -> b) -> a -> b
$
              case IE GhcPs
new of
                IEThingWith XIEThingWith GhcPs
_ LIEWrappedName GhcPs
n IEWildcard
wildcard [LIEWrappedName GhcPs]
g ->
                  XIEThingWith GhcPs
-> LIEWrappedName GhcPs
-> IEWildcard
-> [LIEWrappedName GhcPs]
-> IE GhcPs
forall pass.
XIEThingWith pass
-> LIEWrappedName pass
-> IEWildcard
-> [LIEWrappedName pass]
-> IE pass
IEThingWith (Maybe (LocatedP (WarningTxt GhcPs))
forall a. Maybe a
Nothing, EpAnn [AddEpAnn]
forall ann. EpAnn ann
EpAnnNotUsed) LIEWrappedName GhcPs
n IEWildcard
wildcard ([GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
-> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
normalizeWNames [LIEWrappedName GhcPs]
[GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
g)
                IE GhcPs
other -> IE GhcPs
other
            Just GenLocated SrcSpanAnnA (IE GhcPs)
old ->
              let f :: IE GhcPs -> IE GhcPs
f = \case
                    IEVar XIEVar GhcPs
_ LIEWrappedName GhcPs
n -> XIEVar GhcPs -> LIEWrappedName GhcPs -> IE GhcPs
forall pass. XIEVar pass -> LIEWrappedName pass -> IE pass
IEVar Maybe (LocatedP (WarningTxt GhcPs))
XIEVar GhcPs
forall a. Maybe a
Nothing LIEWrappedName GhcPs
n
                    IEThingAbs XIEThingAbs GhcPs
_ LIEWrappedName GhcPs
_ -> IE GhcPs
new
                    IEThingAll XIEThingAll GhcPs
_ LIEWrappedName GhcPs
n -> XIEThingAll GhcPs -> LIEWrappedName GhcPs -> IE GhcPs
forall pass. XIEThingAll pass -> LIEWrappedName pass -> IE pass
IEThingAll (Maybe (LocatedP (WarningTxt GhcPs))
forall a. Maybe a
Nothing, EpAnn [AddEpAnn]
forall ann. EpAnn ann
EpAnnNotUsed) LIEWrappedName GhcPs
n
                    IEThingWith XIEThingWith GhcPs
_ LIEWrappedName GhcPs
n IEWildcard
wildcard [LIEWrappedName GhcPs]
g ->
                      case IE GhcPs
new of
                        IEVar XIEVar GhcPs
_ LIEWrappedName GhcPs
_ ->
                          String -> IE GhcPs
forall a. HasCallStack => String -> a
error String
"Ormolu.Imports broken presupposition"
                        IEThingAbs XIEThingAbs GhcPs
_ LIEWrappedName GhcPs
_ ->
                          XIEThingWith GhcPs
-> LIEWrappedName GhcPs
-> IEWildcard
-> [LIEWrappedName GhcPs]
-> IE GhcPs
forall pass.
XIEThingWith pass
-> LIEWrappedName pass
-> IEWildcard
-> [LIEWrappedName pass]
-> IE pass
IEThingWith (Maybe (LocatedP (WarningTxt GhcPs))
forall a. Maybe a
Nothing, EpAnn [AddEpAnn]
forall ann. EpAnn ann
EpAnnNotUsed) LIEWrappedName GhcPs
n IEWildcard
wildcard [LIEWrappedName GhcPs]
g
                        IEThingAll XIEThingAll GhcPs
_ LIEWrappedName GhcPs
n' ->
                          XIEThingAll GhcPs -> LIEWrappedName GhcPs -> IE GhcPs
forall pass. XIEThingAll pass -> LIEWrappedName pass -> IE pass
IEThingAll (Maybe (LocatedP (WarningTxt GhcPs))
forall a. Maybe a
Nothing, EpAnn [AddEpAnn]
forall ann. EpAnn ann
EpAnnNotUsed) LIEWrappedName GhcPs
n'
                        IEThingWith XIEThingWith GhcPs
_ LIEWrappedName GhcPs
n' IEWildcard
wildcard' [LIEWrappedName GhcPs]
g' ->
                          let combinedWildcard :: IEWildcard
combinedWildcard =
                                case (IEWildcard
wildcard, IEWildcard
wildcard') of
                                  (IEWildcard Int
_, IEWildcard
_) -> Int -> IEWildcard
IEWildcard Int
0
                                  (IEWildcard
_, IEWildcard Int
_) -> Int -> IEWildcard
IEWildcard Int
0
                                  (IEWildcard, IEWildcard)
_ -> IEWildcard
NoIEWildcard
                           in XIEThingWith GhcPs
-> LIEWrappedName GhcPs
-> IEWildcard
-> [LIEWrappedName GhcPs]
-> IE GhcPs
forall pass.
XIEThingWith pass
-> LIEWrappedName pass
-> IEWildcard
-> [LIEWrappedName pass]
-> IE pass
IEThingWith
                                (Maybe (LocatedP (WarningTxt GhcPs))
forall a. Maybe a
Nothing, EpAnn [AddEpAnn]
forall ann. EpAnn ann
EpAnnNotUsed)
                                LIEWrappedName GhcPs
n'
                                IEWildcard
combinedWildcard
                                ([GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
-> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
normalizeWNames ([LIEWrappedName GhcPs]
[GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
g [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
-> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
-> [GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
forall a. Semigroup a => a -> a -> a
<> [LIEWrappedName GhcPs]
[GenLocated SrcSpanAnnA (IEWrappedName GhcPs)]
g'))
                        IEModuleContents XIEModuleContents GhcPs
_ XRec GhcPs ModuleName
_ -> String -> IE GhcPs
forall a. String -> a
notImplemented String
"IEModuleContents"
                        IEGroup XIEGroup GhcPs
NoExtField
NoExtField Int
_ LHsDoc GhcPs
_ -> String -> IE GhcPs
forall a. String -> a
notImplemented String
"IEGroup"
                        IEDoc XIEDoc GhcPs
NoExtField
NoExtField LHsDoc GhcPs
_ -> String -> IE GhcPs
forall a. String -> a
notImplemented String
"IEDoc"
                        IEDocNamed XIEDocNamed GhcPs
NoExtField
NoExtField String
_ -> String -> IE GhcPs
forall a. String -> a
notImplemented String
"IEDocNamed"
                    IEModuleContents XIEModuleContents GhcPs
_ XRec GhcPs ModuleName
_ -> String -> IE GhcPs
forall a. String -> a
notImplemented String
"IEModuleContents"
                    IEGroup XIEGroup GhcPs
NoExtField
NoExtField Int
_ LHsDoc GhcPs
_ -> String -> IE GhcPs
forall a. String -> a
notImplemented String
"IEGroup"
                    IEDoc XIEDoc GhcPs
NoExtField
NoExtField LHsDoc GhcPs
_ -> String -> IE GhcPs
forall a. String -> a
notImplemented String
"IEDoc"
                    IEDocNamed XIEDocNamed GhcPs
NoExtField
NoExtField String
_ -> String -> IE GhcPs
forall a. String -> a
notImplemented String
"IEDocNamed"
               in GenLocated SrcSpanAnnA (IE GhcPs)
-> Maybe (GenLocated SrcSpanAnnA (IE GhcPs))
forall a. a -> Maybe a
Just (IE GhcPs -> IE GhcPs
f (IE GhcPs -> IE GhcPs)
-> GenLocated SrcSpanAnnA (IE GhcPs)
-> GenLocated SrcSpanAnnA (IE GhcPs)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> GenLocated SrcSpanAnnA (IE GhcPs)
old)
       in (Maybe (GenLocated SrcSpanAnnA (IE GhcPs))
 -> Maybe (GenLocated SrcSpanAnnA (IE GhcPs)))
-> IEWrappedNameOrd
-> Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs))
-> Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs))
forall k a.
Ord k =>
(Maybe a -> Maybe a) -> k -> Map k a -> Map k a
M.alter Maybe (GenLocated SrcSpanAnnA (IE GhcPs))
-> Maybe (GenLocated SrcSpanAnnA (IE GhcPs))
alter IEWrappedNameOrd
wname Map IEWrappedNameOrd (LIE GhcPs)
Map IEWrappedNameOrd (GenLocated SrcSpanAnnA (IE GhcPs))
m

-- | A wrapper for @'IEWrappedName' 'GhcPs'@ that allows us to define an
-- 'Ord' instance for it.
newtype IEWrappedNameOrd = IEWrappedNameOrd (IEWrappedName GhcPs)
  deriving (IEWrappedNameOrd -> IEWrappedNameOrd -> Bool
(IEWrappedNameOrd -> IEWrappedNameOrd -> Bool)
-> (IEWrappedNameOrd -> IEWrappedNameOrd -> Bool)
-> Eq IEWrappedNameOrd
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
$c== :: IEWrappedNameOrd -> IEWrappedNameOrd -> Bool
== :: IEWrappedNameOrd -> IEWrappedNameOrd -> Bool
$c/= :: IEWrappedNameOrd -> IEWrappedNameOrd -> Bool
/= :: IEWrappedNameOrd -> IEWrappedNameOrd -> Bool
Eq)

instance Ord IEWrappedNameOrd where
  compare :: IEWrappedNameOrd -> IEWrappedNameOrd -> Ordering
compare (IEWrappedNameOrd IEWrappedName GhcPs
x) (IEWrappedNameOrd IEWrappedName GhcPs
y) = IEWrappedName GhcPs -> IEWrappedName GhcPs -> Ordering
compareIewn IEWrappedName GhcPs
x IEWrappedName GhcPs
y

-- | Project @'IEWrappedName' 'GhcPs'@ from @'IE' 'GhcPs'@.
getIewn :: IE GhcPs -> IEWrappedNameOrd
getIewn :: IE GhcPs -> IEWrappedNameOrd
getIewn = \case
  IEVar XIEVar GhcPs
_ LIEWrappedName GhcPs
x -> IEWrappedName GhcPs -> IEWrappedNameOrd
IEWrappedNameOrd (GenLocated SrcSpanAnnA (IEWrappedName GhcPs) -> IEWrappedName GhcPs
forall l e. GenLocated l e -> e
unLoc LIEWrappedName GhcPs
GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
x)
  IEThingAbs XIEThingAbs GhcPs
_ LIEWrappedName GhcPs
x -> IEWrappedName GhcPs -> IEWrappedNameOrd
IEWrappedNameOrd (GenLocated SrcSpanAnnA (IEWrappedName GhcPs) -> IEWrappedName GhcPs
forall l e. GenLocated l e -> e
unLoc LIEWrappedName GhcPs
GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
x)
  IEThingAll XIEThingAll GhcPs
_ LIEWrappedName GhcPs
x -> IEWrappedName GhcPs -> IEWrappedNameOrd
IEWrappedNameOrd (GenLocated SrcSpanAnnA (IEWrappedName GhcPs) -> IEWrappedName GhcPs
forall l e. GenLocated l e -> e
unLoc LIEWrappedName GhcPs
GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
x)
  IEThingWith XIEThingWith GhcPs
_ LIEWrappedName GhcPs
x IEWildcard
_ [LIEWrappedName GhcPs]
_ -> IEWrappedName GhcPs -> IEWrappedNameOrd
IEWrappedNameOrd (GenLocated SrcSpanAnnA (IEWrappedName GhcPs) -> IEWrappedName GhcPs
forall l e. GenLocated l e -> e
unLoc LIEWrappedName GhcPs
GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
x)
  IEModuleContents XIEModuleContents GhcPs
_ XRec GhcPs ModuleName
_ -> String -> IEWrappedNameOrd
forall a. String -> a
notImplemented String
"IEModuleContents"
  IEGroup XIEGroup GhcPs
NoExtField
NoExtField Int
_ LHsDoc GhcPs
_ -> String -> IEWrappedNameOrd
forall a. String -> a
notImplemented String
"IEGroup"
  IEDoc XIEDoc GhcPs
NoExtField
NoExtField LHsDoc GhcPs
_ -> String -> IEWrappedNameOrd
forall a. String -> a
notImplemented String
"IEDoc"
  IEDocNamed XIEDocNamed GhcPs
NoExtField
NoExtField String
_ -> String -> IEWrappedNameOrd
forall a. String -> a
notImplemented String
"IEDocNamed"

-- | Like 'compareIewn' for located wrapped names.
compareLIewn :: LIEWrappedName GhcPs -> LIEWrappedName GhcPs -> Ordering
compareLIewn :: LIEWrappedName GhcPs -> LIEWrappedName GhcPs -> Ordering
compareLIewn = IEWrappedName GhcPs -> IEWrappedName GhcPs -> Ordering
compareIewn (IEWrappedName GhcPs -> IEWrappedName GhcPs -> Ordering)
-> (GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
    -> IEWrappedName GhcPs)
-> GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
-> GenLocated SrcSpanAnnA (IEWrappedName GhcPs)
-> Ordering
forall b c a. (b -> b -> c) -> (a -> b) -> a -> a -> c
`on` GenLocated SrcSpanAnnA (IEWrappedName GhcPs) -> IEWrappedName GhcPs
forall l e. GenLocated l e -> e
unLoc

-- | Compare two @'IEWrapppedName' 'GhcPs'@ things.
compareIewn :: IEWrappedName GhcPs -> IEWrappedName GhcPs -> Ordering
compareIewn :: IEWrappedName GhcPs -> IEWrappedName GhcPs -> Ordering
compareIewn (IEName XIEName GhcPs
_ LIdP GhcPs
x) (IEName XIEName GhcPs
_ LIdP GhcPs
y) = GenLocated SrcSpanAnnN RdrName -> RdrName
forall l e. GenLocated l e -> e
unLoc LIdP GhcPs
GenLocated SrcSpanAnnN RdrName
x RdrName -> RdrName -> Ordering
`compareRdrName` GenLocated SrcSpanAnnN RdrName -> RdrName
forall l e. GenLocated l e -> e
unLoc LIdP GhcPs
GenLocated SrcSpanAnnN RdrName
y
compareIewn (IEName XIEName GhcPs
_ LIdP GhcPs
_) (IEPattern XIEPattern GhcPs
_ LIdP GhcPs
_) = Ordering
LT
compareIewn (IEName XIEName GhcPs
_ LIdP GhcPs
_) (IEType XIEType GhcPs
_ LIdP GhcPs
_) = Ordering
LT
compareIewn (IEPattern XIEPattern GhcPs
_ LIdP GhcPs
_) (IEName XIEName GhcPs
_ LIdP GhcPs
_) = Ordering
GT
compareIewn (IEPattern XIEPattern GhcPs
_ LIdP GhcPs
x) (IEPattern XIEPattern GhcPs
_ LIdP GhcPs
y) = GenLocated SrcSpanAnnN RdrName -> RdrName
forall l e. GenLocated l e -> e
unLoc LIdP GhcPs
GenLocated SrcSpanAnnN RdrName
x RdrName -> RdrName -> Ordering
`compareRdrName` GenLocated SrcSpanAnnN RdrName -> RdrName
forall l e. GenLocated l e -> e
unLoc LIdP GhcPs
GenLocated SrcSpanAnnN RdrName
y
compareIewn (IEPattern XIEPattern GhcPs
_ LIdP GhcPs
_) (IEType XIEType GhcPs
_ LIdP GhcPs
_) = Ordering
LT
compareIewn (IEType XIEType GhcPs
_ LIdP GhcPs
_) (IEName XIEName GhcPs
_ LIdP GhcPs
_) = Ordering
GT
compareIewn (IEType XIEType GhcPs
_ LIdP GhcPs
_) (IEPattern XIEPattern GhcPs
_ LIdP GhcPs
_) = Ordering
GT
compareIewn (IEType XIEType GhcPs
_ LIdP GhcPs
x) (IEType XIEType GhcPs
_ LIdP GhcPs
y) = GenLocated SrcSpanAnnN RdrName -> RdrName
forall l e. GenLocated l e -> e
unLoc LIdP GhcPs
GenLocated SrcSpanAnnN RdrName
x RdrName -> RdrName -> Ordering
`compareRdrName` GenLocated SrcSpanAnnN RdrName -> RdrName
forall l e. GenLocated l e -> e
unLoc LIdP GhcPs
GenLocated SrcSpanAnnN RdrName
y

compareRdrName :: RdrName -> RdrName -> Ordering
compareRdrName :: RdrName -> RdrName -> Ordering
compareRdrName RdrName
x RdrName
y =
  case (RdrName -> String
getNameStr RdrName
x, RdrName -> String
getNameStr RdrName
y) of
    ([], []) -> Ordering
EQ
    ((Char
_ : String
_), []) -> Ordering
GT
    ([], (Char
_ : String
_)) -> Ordering
LT
    ((Char
x' : String
_), (Char
y' : String
_)) ->
      case (Char -> Bool
isAlphaNum Char
x', Char -> Bool
isAlphaNum Char
y') of
        (Bool
False, Bool
False) -> RdrName
x RdrName -> RdrName -> Ordering
forall a. Ord a => a -> a -> Ordering
`compare` RdrName
y
        (Bool
True, Bool
False) -> Ordering
LT
        (Bool
False, Bool
True) -> Ordering
GT
        (Bool
True, Bool
True) -> RdrName
x RdrName -> RdrName -> Ordering
forall a. Ord a => a -> a -> Ordering
`compare` RdrName
y
  where
    getNameStr :: RdrName -> String
getNameStr = OccName -> String
forall o. Outputable o => o -> String
showOutputable (OccName -> String) -> (RdrName -> OccName) -> RdrName -> String
forall b c a. (b -> c) -> (a -> b) -> a -> c
. RdrName -> OccName
rdrNameOcc