{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE PatternSynonyms #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE ViewPatterns #-}

-- | Rendering of declarations.
module Ormolu.Printer.Meat.Declaration
  ( p_hsDecls,
    p_hsDeclsRespectGrouping,
  )
where

import Data.List (sort)
import Data.List.NonEmpty (NonEmpty (..), (<|))
import qualified Data.List.NonEmpty as NE
import GHC hiding (InlinePragma)
import OccName (occNameFS)
import Ormolu.Printer.Combinators
import Ormolu.Printer.Meat.Common
import Ormolu.Printer.Meat.Declaration.Annotation
import Ormolu.Printer.Meat.Declaration.Class
import Ormolu.Printer.Meat.Declaration.Data
import Ormolu.Printer.Meat.Declaration.Default
import Ormolu.Printer.Meat.Declaration.Foreign
import Ormolu.Printer.Meat.Declaration.Instance
import Ormolu.Printer.Meat.Declaration.RoleAnnotation
import Ormolu.Printer.Meat.Declaration.Rule
import Ormolu.Printer.Meat.Declaration.Signature
import Ormolu.Printer.Meat.Declaration.Splice
import Ormolu.Printer.Meat.Declaration.Type
import Ormolu.Printer.Meat.Declaration.TypeFamily
import Ormolu.Printer.Meat.Declaration.Value
import Ormolu.Printer.Meat.Declaration.Warning
import Ormolu.Printer.Meat.Type
import Ormolu.Utils

data UserGrouping
  = -- | Always put newlines where we think they should be
    Disregard
  | -- | Respect user preferences regarding grouping
    Respect
  deriving (UserGrouping -> UserGrouping -> Bool
(UserGrouping -> UserGrouping -> Bool)
-> (UserGrouping -> UserGrouping -> Bool) -> Eq UserGrouping
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: UserGrouping -> UserGrouping -> Bool
$c/= :: UserGrouping -> UserGrouping -> Bool
== :: UserGrouping -> UserGrouping -> Bool
$c== :: UserGrouping -> UserGrouping -> Bool
Eq, Int -> UserGrouping -> ShowS
[UserGrouping] -> ShowS
UserGrouping -> String
(Int -> UserGrouping -> ShowS)
-> (UserGrouping -> String)
-> ([UserGrouping] -> ShowS)
-> Show UserGrouping
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [UserGrouping] -> ShowS
$cshowList :: [UserGrouping] -> ShowS
show :: UserGrouping -> String
$cshow :: UserGrouping -> String
showsPrec :: Int -> UserGrouping -> ShowS
$cshowsPrec :: Int -> UserGrouping -> ShowS
Show)

p_hsDecls :: FamilyStyle -> [LHsDecl GhcPs] -> R ()
p_hsDecls :: FamilyStyle -> [LHsDecl GhcPs] -> R ()
p_hsDecls = UserGrouping -> FamilyStyle -> [LHsDecl GhcPs] -> R ()
p_hsDecls' UserGrouping
Disregard

-- | Like 'p_hsDecls' but respects user choices regarding grouping. If the
-- user omits newlines between declarations, we also omit them in most
-- cases, except when said declarations have associated Haddocks.
--
-- Does some normalization (compress subsequent newlines into a single one)
p_hsDeclsRespectGrouping :: FamilyStyle -> [LHsDecl GhcPs] -> R ()
p_hsDeclsRespectGrouping :: FamilyStyle -> [LHsDecl GhcPs] -> R ()
p_hsDeclsRespectGrouping = UserGrouping -> FamilyStyle -> [LHsDecl GhcPs] -> R ()
p_hsDecls' UserGrouping
Respect

p_hsDecls' :: UserGrouping -> FamilyStyle -> [LHsDecl GhcPs] -> R ()
p_hsDecls' :: UserGrouping -> FamilyStyle -> [LHsDecl GhcPs] -> R ()
p_hsDecls' grouping :: UserGrouping
grouping style :: FamilyStyle
style decls :: [LHsDecl GhcPs]
decls =
  (R () -> R ()) -> [R ()] -> R ()
forall a. (a -> R ()) -> [a] -> R ()
sepSemi R () -> R ()
forall a. a -> a
id ([R ()] -> R ()) -> [R ()] -> R ()
forall a b. (a -> b) -> a -> b
$
    -- Return a list of rendered declarations, adding a newline to separate
    -- groups.
    case [LHsDecl GhcPs] -> [NonEmpty (LHsDecl GhcPs)]
groupDecls [LHsDecl GhcPs]
decls of
      [] -> []
      (x :: NonEmpty (LHsDecl GhcPs)
x : xs :: [NonEmpty (LHsDecl GhcPs)]
xs) -> NonEmpty (LHsDecl GhcPs) -> [R ()]
renderGroup NonEmpty (LHsDecl GhcPs)
x [R ()] -> [R ()] -> [R ()]
forall a. [a] -> [a] -> [a]
++ [[R ()]] -> [R ()]
forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat ((NonEmpty (LHsDecl GhcPs) -> NonEmpty (LHsDecl GhcPs) -> [R ()])
-> [NonEmpty (LHsDecl GhcPs)]
-> [NonEmpty (LHsDecl GhcPs)]
-> [[R ()]]
forall a b c. (a -> b -> c) -> [a] -> [b] -> [c]
zipWith NonEmpty (LHsDecl GhcPs) -> NonEmpty (LHsDecl GhcPs) -> [R ()]
renderGroupWithPrev (NonEmpty (LHsDecl GhcPs)
x NonEmpty (LHsDecl GhcPs)
-> [NonEmpty (LHsDecl GhcPs)] -> [NonEmpty (LHsDecl GhcPs)]
forall a. a -> [a] -> [a]
: [NonEmpty (LHsDecl GhcPs)]
xs) [NonEmpty (LHsDecl GhcPs)]
xs)
  where
    renderGroup :: NonEmpty (LHsDecl GhcPs) -> [R ()]
renderGroup = NonEmpty (R ()) -> [R ()]
forall a. NonEmpty a -> [a]
NE.toList (NonEmpty (R ()) -> [R ()])
-> (NonEmpty (LHsDecl GhcPs) -> NonEmpty (R ()))
-> NonEmpty (LHsDecl GhcPs)
-> [R ()]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (LHsDecl GhcPs -> R ())
-> NonEmpty (LHsDecl GhcPs) -> NonEmpty (R ())
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap ((HsDecl GhcPs -> R ()) -> LHsDecl GhcPs -> R ()
forall a. (a -> R ()) -> Located a -> R ()
located' ((HsDecl GhcPs -> R ()) -> LHsDecl GhcPs -> R ())
-> (HsDecl GhcPs -> R ()) -> LHsDecl GhcPs -> R ()
forall a b. (a -> b) -> a -> b
$ R () -> R ()
dontUseBraces (R () -> R ()) -> (HsDecl GhcPs -> R ()) -> HsDecl GhcPs -> R ()
forall b c a. (b -> c) -> (a -> b) -> a -> c
. FamilyStyle -> HsDecl GhcPs -> R ()
p_hsDecl FamilyStyle
style)
    renderGroupWithPrev :: NonEmpty (LHsDecl GhcPs) -> NonEmpty (LHsDecl GhcPs) -> [R ()]
renderGroupWithPrev prev :: NonEmpty (LHsDecl GhcPs)
prev curr :: NonEmpty (LHsDecl GhcPs)
curr =
      -- We can omit a blank line when the user didn't add one, but we must
      -- ensure we always add blank lines around documented declarations
      case UserGrouping
grouping of
        Disregard ->
          R ()
breakpoint R () -> [R ()] -> [R ()]
forall a. a -> [a] -> [a]
: NonEmpty (LHsDecl GhcPs) -> [R ()]
renderGroup NonEmpty (LHsDecl GhcPs)
curr
        Respect ->
          if (LHsDecl GhcPs -> SrcSpan)
-> NonEmpty (LHsDecl GhcPs) -> NonEmpty (LHsDecl GhcPs) -> Bool
forall a. (a -> SrcSpan) -> NonEmpty a -> NonEmpty a -> Bool
separatedByBlankNE LHsDecl GhcPs -> SrcSpan
forall a. HasSrcSpan a => a -> SrcSpan
getLoc NonEmpty (LHsDecl GhcPs)
prev NonEmpty (LHsDecl GhcPs)
curr
            Bool -> Bool -> Bool
|| NonEmpty (LHsDecl GhcPs) -> Bool
isDocumented NonEmpty (LHsDecl GhcPs)
prev
            Bool -> Bool -> Bool
|| NonEmpty (LHsDecl GhcPs) -> Bool
isDocumented NonEmpty (LHsDecl GhcPs)
curr
            then R ()
breakpoint R () -> [R ()] -> [R ()]
forall a. a -> [a] -> [a]
: NonEmpty (LHsDecl GhcPs) -> [R ()]
renderGroup NonEmpty (LHsDecl GhcPs)
curr
            else NonEmpty (LHsDecl GhcPs) -> [R ()]
renderGroup NonEmpty (LHsDecl GhcPs)
curr

-- | Is a declaration group documented?
isDocumented :: NonEmpty (LHsDecl GhcPs) -> Bool
isDocumented :: NonEmpty (LHsDecl GhcPs) -> Bool
isDocumented = (LHsDecl GhcPs -> Bool) -> NonEmpty (LHsDecl GhcPs) -> Bool
forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
any (HsDecl GhcPs -> Bool
isHaddock (HsDecl GhcPs -> Bool)
-> (LHsDecl GhcPs -> HsDecl GhcPs) -> LHsDecl GhcPs -> Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. LHsDecl GhcPs -> HsDecl GhcPs
forall a. HasSrcSpan a => a -> SrcSpanLess a
unLoc)
  where
    isHaddock :: HsDecl GhcPs -> Bool
isHaddock DocNext = Bool
True
    isHaddock DocPrev = Bool
True
    isHaddock _ = Bool
False

-- | Group relevant declarations together.
groupDecls :: [LHsDecl GhcPs] -> [NonEmpty (LHsDecl GhcPs)]
groupDecls :: [LHsDecl GhcPs] -> [NonEmpty (LHsDecl GhcPs)]
groupDecls [] = []
groupDecls (l :: LHsDecl GhcPs
l@(L _ DocNext) : xs :: [LHsDecl GhcPs]
xs) =
  -- If the first element is a doc string for next element, just include it
  -- in the next block:
  case [LHsDecl GhcPs] -> [NonEmpty (LHsDecl GhcPs)]
groupDecls [LHsDecl GhcPs]
xs of
    [] -> [LHsDecl GhcPs
l LHsDecl GhcPs -> [LHsDecl GhcPs] -> NonEmpty (LHsDecl GhcPs)
forall a. a -> [a] -> NonEmpty a
:| []]
    (x :: NonEmpty (LHsDecl GhcPs)
x : xs' :: [NonEmpty (LHsDecl GhcPs)]
xs') -> (LHsDecl GhcPs
l LHsDecl GhcPs
-> NonEmpty (LHsDecl GhcPs) -> NonEmpty (LHsDecl GhcPs)
forall a. a -> NonEmpty a -> NonEmpty a
<| NonEmpty (LHsDecl GhcPs)
x) NonEmpty (LHsDecl GhcPs)
-> [NonEmpty (LHsDecl GhcPs)] -> [NonEmpty (LHsDecl GhcPs)]
forall a. a -> [a] -> [a]
: [NonEmpty (LHsDecl GhcPs)]
xs'
groupDecls (header :: LHsDecl GhcPs
header : xs :: [LHsDecl GhcPs]
xs) =
  let (grp :: [(LHsDecl GhcPs, LHsDecl GhcPs)]
grp, rest :: [(LHsDecl GhcPs, LHsDecl GhcPs)]
rest) = (((LHsDecl GhcPs, LHsDecl GhcPs) -> Bool)
 -> [(LHsDecl GhcPs, LHsDecl GhcPs)]
 -> ([(LHsDecl GhcPs, LHsDecl GhcPs)],
     [(LHsDecl GhcPs, LHsDecl GhcPs)]))
-> [(LHsDecl GhcPs, LHsDecl GhcPs)]
-> ((LHsDecl GhcPs, LHsDecl GhcPs) -> Bool)
-> ([(LHsDecl GhcPs, LHsDecl GhcPs)],
    [(LHsDecl GhcPs, LHsDecl GhcPs)])
forall a b c. (a -> b -> c) -> b -> a -> c
flip ((LHsDecl GhcPs, LHsDecl GhcPs) -> Bool)
-> [(LHsDecl GhcPs, LHsDecl GhcPs)]
-> ([(LHsDecl GhcPs, LHsDecl GhcPs)],
    [(LHsDecl GhcPs, LHsDecl GhcPs)])
forall a. (a -> Bool) -> [a] -> ([a], [a])
span ([LHsDecl GhcPs]
-> [LHsDecl GhcPs] -> [(LHsDecl GhcPs, LHsDecl GhcPs)]
forall a b. [a] -> [b] -> [(a, b)]
zip (LHsDecl GhcPs
header LHsDecl GhcPs -> [LHsDecl GhcPs] -> [LHsDecl GhcPs]
forall a. a -> [a] -> [a]
: [LHsDecl GhcPs]
xs) [LHsDecl GhcPs]
xs) (((LHsDecl GhcPs, LHsDecl GhcPs) -> Bool)
 -> ([(LHsDecl GhcPs, LHsDecl GhcPs)],
     [(LHsDecl GhcPs, LHsDecl GhcPs)]))
-> ((LHsDecl GhcPs, LHsDecl GhcPs) -> Bool)
-> ([(LHsDecl GhcPs, LHsDecl GhcPs)],
    [(LHsDecl GhcPs, LHsDecl GhcPs)])
forall a b. (a -> b) -> a -> b
$ \(previous :: LHsDecl GhcPs
previous, current :: LHsDecl GhcPs
current) ->
        let relevantToHdr :: Bool
relevantToHdr = LHsDecl GhcPs -> LHsDecl GhcPs -> Bool
groupedDecls LHsDecl GhcPs
header LHsDecl GhcPs
current
            relevantToPrev :: Bool
relevantToPrev = LHsDecl GhcPs -> LHsDecl GhcPs -> Bool
groupedDecls LHsDecl GhcPs
previous LHsDecl GhcPs
current
            isDeclSeries :: Bool
isDeclSeries = LHsDecl GhcPs -> LHsDecl GhcPs -> Bool
declSeries LHsDecl GhcPs
previous LHsDecl GhcPs
current
         in Bool
isDeclSeries Bool -> Bool -> Bool
|| Bool
relevantToHdr Bool -> Bool -> Bool
|| Bool
relevantToPrev
   in (LHsDecl GhcPs
header LHsDecl GhcPs -> [LHsDecl GhcPs] -> NonEmpty (LHsDecl GhcPs)
forall a. a -> [a] -> NonEmpty a
:| ((LHsDecl GhcPs, LHsDecl GhcPs) -> LHsDecl GhcPs)
-> [(LHsDecl GhcPs, LHsDecl GhcPs)] -> [LHsDecl GhcPs]
forall a b. (a -> b) -> [a] -> [b]
map (LHsDecl GhcPs, LHsDecl GhcPs) -> LHsDecl GhcPs
forall a b. (a, b) -> b
snd [(LHsDecl GhcPs, LHsDecl GhcPs)]
grp) NonEmpty (LHsDecl GhcPs)
-> [NonEmpty (LHsDecl GhcPs)] -> [NonEmpty (LHsDecl GhcPs)]
forall a. a -> [a] -> [a]
: [LHsDecl GhcPs] -> [NonEmpty (LHsDecl GhcPs)]
groupDecls (((LHsDecl GhcPs, LHsDecl GhcPs) -> LHsDecl GhcPs)
-> [(LHsDecl GhcPs, LHsDecl GhcPs)] -> [LHsDecl GhcPs]
forall a b. (a -> b) -> [a] -> [b]
map (LHsDecl GhcPs, LHsDecl GhcPs) -> LHsDecl GhcPs
forall a b. (a, b) -> b
snd [(LHsDecl GhcPs, LHsDecl GhcPs)]
rest)

p_hsDecl :: FamilyStyle -> HsDecl GhcPs -> R ()
p_hsDecl :: FamilyStyle -> HsDecl GhcPs -> R ()
p_hsDecl style :: FamilyStyle
style = \case
  TyClD NoExtField x :: TyClDecl GhcPs
x -> FamilyStyle -> TyClDecl GhcPs -> R ()
p_tyClDecl FamilyStyle
style TyClDecl GhcPs
x
  ValD NoExtField x :: HsBind GhcPs
x -> HsBind GhcPs -> R ()
p_valDecl HsBind GhcPs
x
  SigD NoExtField x :: Sig GhcPs
x -> Sig GhcPs -> R ()
p_sigDecl Sig GhcPs
x
  InstD NoExtField x :: InstDecl GhcPs
x -> FamilyStyle -> InstDecl GhcPs -> R ()
p_instDecl FamilyStyle
style InstDecl GhcPs
x
  DerivD NoExtField x :: DerivDecl GhcPs
x -> DerivDecl GhcPs -> R ()
p_derivDecl DerivDecl GhcPs
x
  DefD NoExtField x :: DefaultDecl GhcPs
x -> DefaultDecl GhcPs -> R ()
p_defaultDecl DefaultDecl GhcPs
x
  ForD NoExtField x :: ForeignDecl GhcPs
x -> ForeignDecl GhcPs -> R ()
p_foreignDecl ForeignDecl GhcPs
x
  WarningD NoExtField x :: WarnDecls GhcPs
x -> WarnDecls GhcPs -> R ()
p_warnDecls WarnDecls GhcPs
x
  AnnD NoExtField x :: AnnDecl GhcPs
x -> AnnDecl GhcPs -> R ()
p_annDecl AnnDecl GhcPs
x
  RuleD NoExtField x :: RuleDecls GhcPs
x -> RuleDecls GhcPs -> R ()
p_ruleDecls RuleDecls GhcPs
x
  SpliceD NoExtField x :: SpliceDecl GhcPs
x -> SpliceDecl GhcPs -> R ()
p_spliceDecl SpliceDecl GhcPs
x
  DocD NoExtField docDecl :: DocDecl
docDecl ->
    case DocDecl
docDecl of
      DocCommentNext str :: HsDocString
str -> HaddockStyle -> Bool -> LHsDocString -> R ()
p_hsDocString HaddockStyle
Pipe Bool
False (SrcSpanLess LHsDocString -> LHsDocString
forall a. HasSrcSpan a => SrcSpanLess a -> a
noLoc HsDocString
SrcSpanLess LHsDocString
str)
      DocCommentPrev str :: HsDocString
str -> HaddockStyle -> Bool -> LHsDocString -> R ()
p_hsDocString HaddockStyle
Caret Bool
False (SrcSpanLess LHsDocString -> LHsDocString
forall a. HasSrcSpan a => SrcSpanLess a -> a
noLoc HsDocString
SrcSpanLess LHsDocString
str)
      DocCommentNamed name :: String
name str :: HsDocString
str -> HaddockStyle -> Bool -> LHsDocString -> R ()
p_hsDocString (String -> HaddockStyle
Named String
name) Bool
False (SrcSpanLess LHsDocString -> LHsDocString
forall a. HasSrcSpan a => SrcSpanLess a -> a
noLoc HsDocString
SrcSpanLess LHsDocString
str)
      DocGroup n :: Int
n str :: HsDocString
str -> HaddockStyle -> Bool -> LHsDocString -> R ()
p_hsDocString (Int -> HaddockStyle
Asterisk Int
n) Bool
False (SrcSpanLess LHsDocString -> LHsDocString
forall a. HasSrcSpan a => SrcSpanLess a -> a
noLoc HsDocString
SrcSpanLess LHsDocString
str)
  RoleAnnotD NoExtField x :: RoleAnnotDecl GhcPs
x -> RoleAnnotDecl GhcPs -> R ()
p_roleAnnot RoleAnnotDecl GhcPs
x
  KindSigD NoExtField s :: StandaloneKindSig GhcPs
s -> StandaloneKindSig GhcPs -> R ()
p_standaloneKindSig StandaloneKindSig GhcPs
s
  XHsDecl x :: XXHsDecl GhcPs
x -> NoExtCon -> R ()
forall a. NoExtCon -> a
noExtCon NoExtCon
XXHsDecl GhcPs
x

p_tyClDecl :: FamilyStyle -> TyClDecl GhcPs -> R ()
p_tyClDecl :: FamilyStyle -> TyClDecl GhcPs -> R ()
p_tyClDecl style :: FamilyStyle
style = \case
  FamDecl NoExtField x :: FamilyDecl GhcPs
x -> FamilyStyle -> FamilyDecl GhcPs -> R ()
p_famDecl FamilyStyle
style FamilyDecl GhcPs
x
  SynDecl {..} -> Located RdrName
-> LexicalFixity -> LHsQTyVars GhcPs -> LHsType GhcPs -> R ()
p_synDecl Located (IdP GhcPs)
Located RdrName
tcdLName LexicalFixity
tcdFixity LHsQTyVars GhcPs
tcdTyVars LHsType GhcPs
tcdRhs
  DataDecl {..} ->
    FamilyStyle
-> Located RdrName
-> [LHsType GhcPs]
-> LexicalFixity
-> HsDataDefn GhcPs
-> R ()
p_dataDecl
      FamilyStyle
Associated
      Located (IdP GhcPs)
Located RdrName
tcdLName
      (LHsQTyVars GhcPs -> [LHsType GhcPs]
tyVarsToTypes LHsQTyVars GhcPs
tcdTyVars)
      LexicalFixity
tcdFixity
      HsDataDefn GhcPs
tcdDataDefn
  ClassDecl {..} ->
    LHsContext GhcPs
-> Located RdrName
-> LHsQTyVars GhcPs
-> LexicalFixity
-> [Located (FunDep (Located RdrName))]
-> [LSig GhcPs]
-> LHsBinds GhcPs
-> [LFamilyDecl GhcPs]
-> [LTyFamDefltDecl GhcPs]
-> [LDocDecl]
-> R ()
p_classDecl
      LHsContext GhcPs
tcdCtxt
      Located (IdP GhcPs)
Located RdrName
tcdLName
      LHsQTyVars GhcPs
tcdTyVars
      LexicalFixity
tcdFixity
      [LHsFunDep GhcPs]
[Located (FunDep (Located RdrName))]
tcdFDs
      [LSig GhcPs]
tcdSigs
      LHsBinds GhcPs
tcdMeths
      [LFamilyDecl GhcPs]
tcdATs
      [LTyFamDefltDecl GhcPs]
tcdATDefs
      [LDocDecl]
tcdDocs
  XTyClDecl x :: XXTyClDecl GhcPs
x -> NoExtCon -> R ()
forall a. NoExtCon -> a
noExtCon NoExtCon
XXTyClDecl GhcPs
x

p_instDecl :: FamilyStyle -> InstDecl GhcPs -> R ()
p_instDecl :: FamilyStyle -> InstDecl GhcPs -> R ()
p_instDecl style :: FamilyStyle
style = \case
  ClsInstD NoExtField x :: ClsInstDecl GhcPs
x -> ClsInstDecl GhcPs -> R ()
p_clsInstDecl ClsInstDecl GhcPs
x
  TyFamInstD NoExtField x :: TyFamInstDecl GhcPs
x -> FamilyStyle -> TyFamInstDecl GhcPs -> R ()
p_tyFamInstDecl FamilyStyle
style TyFamInstDecl GhcPs
x
  DataFamInstD NoExtField x :: DataFamInstDecl GhcPs
x -> FamilyStyle -> DataFamInstDecl GhcPs -> R ()
p_dataFamInstDecl FamilyStyle
style DataFamInstDecl GhcPs
x
  XInstDecl x :: XXInstDecl GhcPs
x -> NoExtCon -> R ()
forall a. NoExtCon -> a
noExtCon NoExtCon
XXInstDecl GhcPs
x

p_derivDecl :: DerivDecl GhcPs -> R ()
p_derivDecl :: DerivDecl GhcPs -> R ()
p_derivDecl = \case
  d :: DerivDecl GhcPs
d@DerivDecl {} -> DerivDecl GhcPs -> R ()
p_standaloneDerivDecl DerivDecl GhcPs
d
  XDerivDecl x :: XXDerivDecl GhcPs
x -> NoExtCon -> R ()
forall a. NoExtCon -> a
noExtCon NoExtCon
XXDerivDecl GhcPs
x

-- | Determine if these declarations should be grouped together.
groupedDecls ::
  LHsDecl GhcPs ->
  LHsDecl GhcPs ->
  Bool
groupedDecls :: LHsDecl GhcPs -> LHsDecl GhcPs -> Bool
groupedDecls (L l_x :: SrcSpan
l_x x' :: HsDecl GhcPs
x') (L l_y :: SrcSpan
l_y y' :: HsDecl GhcPs
y') =
  case (HsDecl GhcPs
x', HsDecl GhcPs
y') of
    (TypeSignature ns :: [RdrName]
ns, FunctionBody ns' :: [RdrName]
ns') -> [RdrName]
ns [RdrName] -> [RdrName] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
`intersects` [RdrName]
ns'
    (TypeSignature ns :: [RdrName]
ns, DefaultSignature ns' :: [RdrName]
ns') -> [RdrName]
ns [RdrName] -> [RdrName] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
`intersects` [RdrName]
ns'
    (DefaultSignature ns :: [RdrName]
ns, TypeSignature ns' :: [RdrName]
ns') -> [RdrName]
ns [RdrName] -> [RdrName] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
`intersects` [RdrName]
ns'
    (DefaultSignature ns :: [RdrName]
ns, FunctionBody ns' :: [RdrName]
ns') -> [RdrName]
ns [RdrName] -> [RdrName] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
`intersects` [RdrName]
ns'
    (x :: HsDecl GhcPs
x, FunctionBody ns :: [RdrName]
ns) | Just ns' :: [RdrName]
ns' <- HsDecl GhcPs -> Maybe [RdrName]
isPragma HsDecl GhcPs
x -> [RdrName]
ns [RdrName] -> [RdrName] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
`intersects` [RdrName]
ns'
    (FunctionBody ns :: [RdrName]
ns, x :: HsDecl GhcPs
x) | Just ns' :: [RdrName]
ns' <- HsDecl GhcPs -> Maybe [RdrName]
isPragma HsDecl GhcPs
x -> [RdrName]
ns [RdrName] -> [RdrName] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
`intersects` [RdrName]
ns'
    (x :: HsDecl GhcPs
x, DataDeclaration n :: RdrName
n) | Just ns :: [RdrName]
ns <- HsDecl GhcPs -> Maybe [RdrName]
isPragma HsDecl GhcPs
x -> RdrName
n RdrName -> [RdrName] -> Bool
forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` [RdrName]
ns
    (DataDeclaration n :: RdrName
n, x :: HsDecl GhcPs
x)
      | Just ns :: [RdrName]
ns <- HsDecl GhcPs -> Maybe [RdrName]
isPragma HsDecl GhcPs
x ->
        let f :: RdrName -> FastString
f = OccName -> FastString
occNameFS (OccName -> FastString)
-> (RdrName -> OccName) -> RdrName -> FastString
forall b c a. (b -> c) -> (a -> b) -> a -> c
. RdrName -> OccName
rdrNameOcc in RdrName -> FastString
f RdrName
n FastString -> [FastString] -> Bool
forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` (RdrName -> FastString) -> [RdrName] -> [FastString]
forall a b. (a -> b) -> [a] -> [b]
map RdrName -> FastString
f [RdrName]
ns
    (x :: HsDecl GhcPs
x, y :: HsDecl GhcPs
y)
      | Just ns :: [RdrName]
ns <- HsDecl GhcPs -> Maybe [RdrName]
isPragma HsDecl GhcPs
x,
        Just ns' :: [RdrName]
ns' <- HsDecl GhcPs -> Maybe [RdrName]
isPragma HsDecl GhcPs
y ->
        [RdrName]
ns [RdrName] -> [RdrName] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
`intersects` [RdrName]
ns'
    (x :: HsDecl GhcPs
x, TypeSignature ns :: [RdrName]
ns) | Just ns' :: [RdrName]
ns' <- HsDecl GhcPs -> Maybe [RdrName]
isPragma HsDecl GhcPs
x -> [RdrName]
ns [RdrName] -> [RdrName] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
`intersects` [RdrName]
ns'
    (TypeSignature ns :: [RdrName]
ns, x :: HsDecl GhcPs
x) | Just ns' :: [RdrName]
ns' <- HsDecl GhcPs -> Maybe [RdrName]
isPragma HsDecl GhcPs
x -> [RdrName]
ns [RdrName] -> [RdrName] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
`intersects` [RdrName]
ns'
    (PatternSignature ns :: [RdrName]
ns, Pattern n :: RdrName
n) -> RdrName
n RdrName -> [RdrName] -> Bool
forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` [RdrName]
ns
    (KindSignature n :: RdrName
n, DataDeclaration n' :: RdrName
n') -> RdrName
n RdrName -> RdrName -> Bool
forall a. Eq a => a -> a -> Bool
== RdrName
n'
    (KindSignature n :: RdrName
n, ClassDeclaration n' :: RdrName
n') -> RdrName
n RdrName -> RdrName -> Bool
forall a. Eq a => a -> a -> Bool
== RdrName
n'
    (KindSignature n :: RdrName
n, FamilyDeclaration n' :: RdrName
n') -> RdrName
n RdrName -> RdrName -> Bool
forall a. Eq a => a -> a -> Bool
== RdrName
n'
    -- Special case for TH splices, we look at locations
    (Splice, Splice) -> Bool -> Bool
not ((SrcSpan -> SrcSpan) -> SrcSpan -> SrcSpan -> Bool
forall a. (a -> SrcSpan) -> a -> a -> Bool
separatedByBlank SrcSpan -> SrcSpan
forall a. a -> a
id SrcSpan
l_x SrcSpan
l_y)
    -- This looks only at Haddocks, normal comments are handled elsewhere
    (DocNext, _) -> Bool
True
    (_, DocPrev) -> Bool
True
    _ -> Bool
False

-- | Detect declaration series that should not have blanks between them.
declSeries ::
  LHsDecl GhcPs ->
  LHsDecl GhcPs ->
  Bool
declSeries :: LHsDecl GhcPs -> LHsDecl GhcPs -> Bool
declSeries (L _ x :: HsDecl GhcPs
x) (L _ y :: HsDecl GhcPs
y) =
  case (HsDecl GhcPs
x, HsDecl GhcPs
y) of
    ( SigD NoExtField (TypeSig NoExtField _ _),
      SigD NoExtField (TypeSig NoExtField _ _)
      ) -> Bool
True
    _ -> Bool
False

intersects :: Ord a => [a] -> [a] -> Bool
intersects :: [a] -> [a] -> Bool
intersects a :: [a]
a b :: [a]
b = [a] -> [a] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
go ([a] -> [a]
forall a. Ord a => [a] -> [a]
sort [a]
a) ([a] -> [a]
forall a. Ord a => [a] -> [a]
sort [a]
b)
  where
    go :: Ord a => [a] -> [a] -> Bool
    go :: [a] -> [a] -> Bool
go _ [] = Bool
False
    go [] _ = Bool
False
    go (x :: a
x : xs :: [a]
xs) (y :: a
y : ys :: [a]
ys)
      | a
x a -> a -> Bool
forall a. Ord a => a -> a -> Bool
< a
y = [a] -> [a] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
go [a]
xs (a
y a -> [a] -> [a]
forall a. a -> [a] -> [a]
: [a]
ys)
      | a
x a -> a -> Bool
forall a. Ord a => a -> a -> Bool
> a
y = [a] -> [a] -> Bool
forall a. Ord a => [a] -> [a] -> Bool
go (a
x a -> [a] -> [a]
forall a. a -> [a] -> [a]
: [a]
xs) [a]
ys
      | Bool
otherwise = Bool
True

isPragma ::
  HsDecl GhcPs ->
  Maybe [RdrName]
isPragma :: HsDecl GhcPs -> Maybe [RdrName]
isPragma = \case
  InlinePragma n :: RdrName
n -> [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just [RdrName
n]
  SpecializePragma n :: RdrName
n -> [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just [RdrName
n]
  SCCPragma n :: RdrName
n -> [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just [RdrName
n]
  AnnTypePragma n :: RdrName
n -> [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just [RdrName
n]
  AnnValuePragma n :: RdrName
n -> [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just [RdrName
n]
  WarningPragma n :: [RdrName]
n -> [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just [RdrName]
n
  _ -> Maybe [RdrName]
forall a. Maybe a
Nothing

-- Declarations that do not refer to names

pattern Splice :: HsDecl GhcPs
pattern $mSplice :: forall r. HsDecl GhcPs -> (Void# -> r) -> (Void# -> r) -> r
Splice <- SpliceD NoExtField (SpliceDecl NoExtField _ _)

-- Declarations referring to a single name

pattern
  InlinePragma,
  SpecializePragma,
  SCCPragma,
  AnnTypePragma,
  AnnValuePragma,
  Pattern,
  DataDeclaration,
  ClassDeclaration,
  KindSignature,
  FamilyDeclaration ::
    RdrName -> HsDecl GhcPs
pattern $mInlinePragma :: forall r. HsDecl GhcPs -> (RdrName -> r) -> (Void# -> r) -> r
InlinePragma n <- SigD NoExtField (InlineSig NoExtField (L _ n) _)
pattern $mSpecializePragma :: forall r. HsDecl GhcPs -> (RdrName -> r) -> (Void# -> r) -> r
SpecializePragma n <- SigD NoExtField (SpecSig NoExtField (L _ n) _ _)
pattern $mSCCPragma :: forall r. HsDecl GhcPs -> (RdrName -> r) -> (Void# -> r) -> r
SCCPragma n <- SigD NoExtField (SCCFunSig NoExtField _ (L _ n) _)
pattern $mAnnTypePragma :: forall r. HsDecl GhcPs -> (RdrName -> r) -> (Void# -> r) -> r
AnnTypePragma n <- AnnD NoExtField (HsAnnotation NoExtField _ (TypeAnnProvenance (L _ n)) _)
pattern $mAnnValuePragma :: forall r. HsDecl GhcPs -> (RdrName -> r) -> (Void# -> r) -> r
AnnValuePragma n <- AnnD NoExtField (HsAnnotation NoExtField _ (ValueAnnProvenance (L _ n)) _)
pattern $mPattern :: forall r. HsDecl GhcPs -> (RdrName -> r) -> (Void# -> r) -> r
Pattern n <- ValD NoExtField (PatSynBind NoExtField (PSB _ (L _ n) _ _ _))
pattern $mDataDeclaration :: forall r. HsDecl GhcPs -> (RdrName -> r) -> (Void# -> r) -> r
DataDeclaration n <- TyClD NoExtField (DataDecl NoExtField (L _ n) _ _ _)
pattern $mClassDeclaration :: forall r. HsDecl GhcPs -> (RdrName -> r) -> (Void# -> r) -> r
ClassDeclaration n <- TyClD NoExtField (ClassDecl NoExtField _ (L _ n) _ _ _ _ _ _ _ _)
pattern $mKindSignature :: forall r. HsDecl GhcPs -> (RdrName -> r) -> (Void# -> r) -> r
KindSignature n <- KindSigD NoExtField (StandaloneKindSig NoExtField (L _ n) _)
pattern $mFamilyDeclaration :: forall r. HsDecl GhcPs -> (RdrName -> r) -> (Void# -> r) -> r
FamilyDeclaration n <- TyClD NoExtField (FamDecl NoExtField (FamilyDecl NoExtField _ (L _ n) _ _ _ _))

-- Declarations which can refer to multiple names

pattern
  TypeSignature,
  DefaultSignature,
  FunctionBody,
  PatternSignature,
  WarningPragma ::
    [RdrName] -> HsDecl GhcPs
pattern $mTypeSignature :: forall r. HsDecl GhcPs -> ([RdrName] -> r) -> (Void# -> r) -> r
TypeSignature n <- (sigRdrNames -> Just n)
pattern $mDefaultSignature :: forall r. HsDecl GhcPs -> ([RdrName] -> r) -> (Void# -> r) -> r
DefaultSignature n <- (defSigRdrNames -> Just n)
pattern $mFunctionBody :: forall r. HsDecl GhcPs -> ([RdrName] -> r) -> (Void# -> r) -> r
FunctionBody n <- (funRdrNames -> Just n)
pattern $mPatternSignature :: forall r. HsDecl GhcPs -> ([RdrName] -> r) -> (Void# -> r) -> r
PatternSignature n <- (patSigRdrNames -> Just n)
pattern $mWarningPragma :: forall r. HsDecl GhcPs -> ([RdrName] -> r) -> (Void# -> r) -> r
WarningPragma n <- (warnSigRdrNames -> Just n)

pattern DocNext, DocPrev :: HsDecl GhcPs
pattern $mDocNext :: forall r. HsDecl GhcPs -> (Void# -> r) -> (Void# -> r) -> r
DocNext <- (DocD NoExtField (DocCommentNext _))
pattern $mDocPrev :: forall r. HsDecl GhcPs -> (Void# -> r) -> (Void# -> r) -> r
DocPrev <- (DocD NoExtField (DocCommentPrev _))

sigRdrNames :: HsDecl GhcPs -> Maybe [RdrName]
sigRdrNames :: HsDecl GhcPs -> Maybe [RdrName]
sigRdrNames (SigD NoExtField (TypeSig NoExtField ns :: [Located (IdP GhcPs)]
ns _)) = [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just ([RdrName] -> Maybe [RdrName]) -> [RdrName] -> Maybe [RdrName]
forall a b. (a -> b) -> a -> b
$ (Located RdrName -> RdrName) -> [Located RdrName] -> [RdrName]
forall a b. (a -> b) -> [a] -> [b]
map Located RdrName -> RdrName
forall a. HasSrcSpan a => a -> SrcSpanLess a
unLoc [Located (IdP GhcPs)]
[Located RdrName]
ns
sigRdrNames (SigD NoExtField (ClassOpSig NoExtField _ ns :: [Located (IdP GhcPs)]
ns _)) = [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just ([RdrName] -> Maybe [RdrName]) -> [RdrName] -> Maybe [RdrName]
forall a b. (a -> b) -> a -> b
$ (Located RdrName -> RdrName) -> [Located RdrName] -> [RdrName]
forall a b. (a -> b) -> [a] -> [b]
map Located RdrName -> RdrName
forall a. HasSrcSpan a => a -> SrcSpanLess a
unLoc [Located (IdP GhcPs)]
[Located RdrName]
ns
sigRdrNames (SigD NoExtField (PatSynSig NoExtField ns :: [Located (IdP GhcPs)]
ns _)) = [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just ([RdrName] -> Maybe [RdrName]) -> [RdrName] -> Maybe [RdrName]
forall a b. (a -> b) -> a -> b
$ (Located RdrName -> RdrName) -> [Located RdrName] -> [RdrName]
forall a b. (a -> b) -> [a] -> [b]
map Located RdrName -> RdrName
forall a. HasSrcSpan a => a -> SrcSpanLess a
unLoc [Located (IdP GhcPs)]
[Located RdrName]
ns
sigRdrNames _ = Maybe [RdrName]
forall a. Maybe a
Nothing

defSigRdrNames :: HsDecl GhcPs -> Maybe [RdrName]
defSigRdrNames :: HsDecl GhcPs -> Maybe [RdrName]
defSigRdrNames (SigD NoExtField (ClassOpSig NoExtField True ns :: [Located (IdP GhcPs)]
ns _)) = [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just ([RdrName] -> Maybe [RdrName]) -> [RdrName] -> Maybe [RdrName]
forall a b. (a -> b) -> a -> b
$ (Located RdrName -> RdrName) -> [Located RdrName] -> [RdrName]
forall a b. (a -> b) -> [a] -> [b]
map Located RdrName -> RdrName
forall a. HasSrcSpan a => a -> SrcSpanLess a
unLoc [Located (IdP GhcPs)]
[Located RdrName]
ns
defSigRdrNames _ = Maybe [RdrName]
forall a. Maybe a
Nothing

funRdrNames :: HsDecl GhcPs -> Maybe [RdrName]
funRdrNames :: HsDecl GhcPs -> Maybe [RdrName]
funRdrNames (ValD NoExtField (FunBind NoExtField (L _ n :: IdP GhcPs
n) _ _ _)) = [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just [IdP GhcPs
RdrName
n]
funRdrNames (ValD NoExtField (PatBind NoExtField (L _ n) _ _)) = [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just ([RdrName] -> Maybe [RdrName]) -> [RdrName] -> Maybe [RdrName]
forall a b. (a -> b) -> a -> b
$ Pat GhcPs -> [RdrName]
patBindNames Pat GhcPs
n
funRdrNames _ = Maybe [RdrName]
forall a. Maybe a
Nothing

patSigRdrNames :: HsDecl GhcPs -> Maybe [RdrName]
patSigRdrNames :: HsDecl GhcPs -> Maybe [RdrName]
patSigRdrNames (SigD NoExtField (PatSynSig NoExtField ns :: [Located (IdP GhcPs)]
ns _)) = [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just ([RdrName] -> Maybe [RdrName]) -> [RdrName] -> Maybe [RdrName]
forall a b. (a -> b) -> a -> b
$ (Located RdrName -> RdrName) -> [Located RdrName] -> [RdrName]
forall a b. (a -> b) -> [a] -> [b]
map Located RdrName -> RdrName
forall a. HasSrcSpan a => a -> SrcSpanLess a
unLoc [Located (IdP GhcPs)]
[Located RdrName]
ns
patSigRdrNames _ = Maybe [RdrName]
forall a. Maybe a
Nothing

warnSigRdrNames :: HsDecl GhcPs -> Maybe [RdrName]
warnSigRdrNames :: HsDecl GhcPs -> Maybe [RdrName]
warnSigRdrNames (WarningD NoExtField (Warnings NoExtField _ ws :: [LWarnDecl GhcPs]
ws)) = [RdrName] -> Maybe [RdrName]
forall a. a -> Maybe a
Just ([RdrName] -> Maybe [RdrName]) -> [RdrName] -> Maybe [RdrName]
forall a b. (a -> b) -> a -> b
$
  ((LWarnDecl GhcPs -> [RdrName]) -> [LWarnDecl GhcPs] -> [RdrName])
-> [LWarnDecl GhcPs] -> (LWarnDecl GhcPs -> [RdrName]) -> [RdrName]
forall a b c. (a -> b -> c) -> b -> a -> c
flip (LWarnDecl GhcPs -> [RdrName]) -> [LWarnDecl GhcPs] -> [RdrName]
forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap [LWarnDecl GhcPs]
ws ((LWarnDecl GhcPs -> [RdrName]) -> [RdrName])
-> (LWarnDecl GhcPs -> [RdrName]) -> [RdrName]
forall a b. (a -> b) -> a -> b
$ \case
    L _ (Warning NoExtField ns :: [Located (IdP GhcPs)]
ns _) -> (Located RdrName -> RdrName) -> [Located RdrName] -> [RdrName]
forall a b. (a -> b) -> [a] -> [b]
map Located RdrName -> RdrName
forall a. HasSrcSpan a => a -> SrcSpanLess a
unLoc [Located (IdP GhcPs)]
[Located RdrName]
ns
    L _ (XWarnDecl x :: XXWarnDecl GhcPs
x) -> NoExtCon -> [RdrName]
forall a. NoExtCon -> a
noExtCon NoExtCon
XXWarnDecl GhcPs
x
warnSigRdrNames _ = Maybe [RdrName]
forall a. Maybe a
Nothing

patBindNames :: Pat GhcPs -> [RdrName]
patBindNames :: Pat GhcPs -> [RdrName]
patBindNames (TuplePat NoExtField ps :: [LPat GhcPs]
ps _) = (Located (Pat GhcPs) -> [RdrName])
-> [Located (Pat GhcPs)] -> [RdrName]
forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (Pat GhcPs -> [RdrName]
patBindNames (Pat GhcPs -> [RdrName])
-> (Located (Pat GhcPs) -> Pat GhcPs)
-> Located (Pat GhcPs)
-> [RdrName]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Located (Pat GhcPs) -> Pat GhcPs
forall a. HasSrcSpan a => a -> SrcSpanLess a
unLoc) [LPat GhcPs]
[Located (Pat GhcPs)]
ps
patBindNames (VarPat NoExtField (L _ n :: IdP GhcPs
n)) = [IdP GhcPs
RdrName
n]
patBindNames (WildPat NoExtField) = []
patBindNames (LazyPat NoExtField (L _ p)) = Pat GhcPs -> [RdrName]
patBindNames Pat GhcPs
p
patBindNames (BangPat NoExtField (L _ p)) = Pat GhcPs -> [RdrName]
patBindNames Pat GhcPs
p
patBindNames (ParPat NoExtField (L _ p)) = Pat GhcPs -> [RdrName]
patBindNames Pat GhcPs
p
patBindNames (ListPat NoExtField ps :: [LPat GhcPs]
ps) = (Located (Pat GhcPs) -> [RdrName])
-> [Located (Pat GhcPs)] -> [RdrName]
forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (Pat GhcPs -> [RdrName]
patBindNames (Pat GhcPs -> [RdrName])
-> (Located (Pat GhcPs) -> Pat GhcPs)
-> Located (Pat GhcPs)
-> [RdrName]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Located (Pat GhcPs) -> Pat GhcPs
forall a. HasSrcSpan a => a -> SrcSpanLess a
unLoc) [LPat GhcPs]
[Located (Pat GhcPs)]
ps
patBindNames (AsPat NoExtField (L _ n :: IdP GhcPs
n) (L _ p)) = IdP GhcPs
RdrName
n RdrName -> [RdrName] -> [RdrName]
forall a. a -> [a] -> [a]
: Pat GhcPs -> [RdrName]
patBindNames Pat GhcPs
p
patBindNames (SumPat NoExtField (L _ p) _ _) = Pat GhcPs -> [RdrName]
patBindNames Pat GhcPs
p
patBindNames (ViewPat NoExtField _ (L _ p)) = Pat GhcPs -> [RdrName]
patBindNames Pat GhcPs
p
patBindNames (SplicePat NoExtField _) = []
patBindNames (LitPat NoExtField _) = []
patBindNames (SigPat _ (L _ p) _) = Pat GhcPs -> [RdrName]
patBindNames Pat GhcPs
p
patBindNames (NPat NoExtField _ _ _) = []
patBindNames (NPlusKPat NoExtField (L _ n :: IdP GhcPs
n) _ _ _ _) = [IdP GhcPs
RdrName
n]
patBindNames (ConPatIn _ d :: HsConPatDetails GhcPs
d) = (Located (Pat GhcPs) -> [RdrName])
-> [Located (Pat GhcPs)] -> [RdrName]
forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (Pat GhcPs -> [RdrName]
patBindNames (Pat GhcPs -> [RdrName])
-> (Located (Pat GhcPs) -> Pat GhcPs)
-> Located (Pat GhcPs)
-> [RdrName]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Located (Pat GhcPs) -> Pat GhcPs
forall a. HasSrcSpan a => a -> SrcSpanLess a
unLoc) (HsConPatDetails GhcPs -> [LPat GhcPs]
forall p. HsConPatDetails p -> [LPat p]
hsConPatArgs HsConPatDetails GhcPs
d)
patBindNames ConPatOut {} = String -> [RdrName]
forall a. String -> a
notImplemented "ConPatOut" -- created by renamer
patBindNames (CoPat NoExtField _ p :: Pat GhcPs
p _) = Pat GhcPs -> [RdrName]
patBindNames Pat GhcPs
p
patBindNames (XPat x :: XXPat GhcPs
x) = NoExtCon -> [RdrName]
forall a. NoExtCon -> a
noExtCon NoExtCon
XXPat GhcPs
x