{-# LANGUAGE ConstraintKinds #-}
{-|
Module      : GHC.Hs.Utils
Description : Generic helpers for the HsSyn type.
Copyright   : (c) The University of Glasgow, 1992-2006

Here we collect a variety of helper functions that construct or
analyse HsSyn.  All these functions deal with generic HsSyn; functions
which deal with the instantiated versions are located elsewhere:

   Parameterised by          Module
   ----------------          -------------
   GhcPs/RdrName             GHC.Parser.PostProcess
   GhcRn/Name                GHC.Rename.*
   GhcTc/Id                  GHC.Tc.Utils.Zonk

The @mk*@ functions attempt to construct a not-completely-useless SrcSpan
from their components, compared with the @nl*@ functions which
just attach noSrcSpan to everything.

-}

{-# LANGUAGE CPP #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE PatternSynonyms #-}
{-# LANGUAGE ViewPatterns #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE GADTs #-}

{-# OPTIONS_GHC -Wno-incomplete-record-updates #-}

module GHC.Hs.Utils(
  -- * Terms
  mkHsPar, mkHsApp, mkHsAppWith, mkHsApps, mkHsAppsWith,
  mkHsAppType, mkHsAppTypes, mkHsCaseAlt,
  mkSimpleMatch, unguardedGRHSs, unguardedRHS,
  mkMatchGroup, mkMatch, mkPrefixFunRhs, mkHsLam, mkHsIf,
  mkHsWrap, mkLHsWrap, mkHsWrapCo, mkHsWrapCoR, mkLHsWrapCo,
  mkHsDictLet, mkHsLams,
  mkHsOpApp, mkHsDo, mkHsDoAnns, mkHsComp, mkHsCompAnns, mkHsWrapPat, mkHsWrapPatCo,
  mkLHsPar, mkHsCmdWrap, mkLHsCmdWrap,
  mkHsCmdIf,

  nlHsTyApp, nlHsTyApps, nlHsVar, nl_HsVar, nlHsDataCon,
  nlHsLit, nlHsApp, nlHsApps, nlHsSyntaxApps,
  nlHsIntLit, nlHsVarApps,
  nlHsDo, nlHsOpApp, nlHsLam, nlHsPar, nlHsIf, nlHsCase, nlList,
  mkLHsTupleExpr, mkLHsVarTuple, missingTupArg,
  mkLocatedList,

  -- * Constructing general big tuples
  -- $big_tuples
  mkChunkified, chunkify,

  -- * Bindings
  mkFunBind, mkVarBind, mkHsVarBind, mkSimpleGeneratedFunBind, mkTopFunBind,
  mkPatSynBind,
  isInfixFunBind,
  spanHsLocaLBinds,

  -- * Literals
  mkHsIntegral, mkHsFractional, mkHsIsString, mkHsString, mkHsStringPrimLit,
  mkHsCharPrimLit,

  -- * Patterns
  mkNPat, mkNPlusKPat, nlVarPat, nlLitPat, nlConVarPat, nlConVarPatName, nlConPat,
  nlConPatName, nlInfixConPat, nlNullaryConPat, nlWildConPat, nlWildPat,
  nlWildPatName, nlTuplePat, mkParPat, nlParPat,
  mkBigLHsVarTup, mkBigLHsTup, mkBigLHsVarPatTup, mkBigLHsPatTup,

  -- * Types
  mkHsAppTy, mkHsAppKindTy,
  hsTypeToHsSigType, hsTypeToHsSigWcType, mkClassOpSigs, mkHsSigEnv,
  nlHsAppTy, nlHsAppKindTy, nlHsTyVar, nlHsFunTy, nlHsParTy, nlHsTyConApp,

  -- * Stmts
  mkTransformStmt, mkTransformByStmt, mkBodyStmt,
  mkPsBindStmt, mkRnBindStmt, mkTcBindStmt,
  mkLastStmt,
  emptyTransStmt, mkGroupUsingStmt, mkGroupByUsingStmt,
  emptyRecStmt, emptyRecStmtName, emptyRecStmtId, mkRecStmt,
  unitRecStmtTc,
  mkLetStmt,

  -- * Template Haskell
  mkUntypedSplice, mkTypedSplice,
  mkHsQuasiQuote,

  -- * Collecting binders
  isUnliftedHsBind, isBangedHsBind,

  collectLocalBinders, collectHsValBinders, collectHsBindListBinders,
  collectHsIdBinders,
  collectHsBindsBinders, collectHsBindBinders, collectMethodBinders,

  collectPatBinders, collectPatsBinders,
  collectLStmtsBinders, collectStmtsBinders,
  collectLStmtBinders, collectStmtBinders,
  CollectPass(..), CollectFlag(..),

  hsLTyClDeclBinders, hsTyClForeignBinders,
  hsPatSynSelectors, getPatSynBinds,
  hsForeignDeclsBinders, hsGroupBinders, hsDataFamInstBinders,

  -- * Collecting implicit binders
  lStmtsImplicits, hsValBindsImplicits, lPatImplicits
  ) where

#include "HsVersions.h"

import GHC.Prelude

import GHC.Hs.Decls
import GHC.Hs.Binds
import GHC.Hs.Expr
import GHC.Hs.Pat
import GHC.Hs.Type
import GHC.Hs.Lit
import Language.Haskell.Syntax.Extension
import GHC.Hs.Extension
import GHC.Parser.Annotation

import GHC.Tc.Types.Evidence
import GHC.Core.TyCo.Rep
import GHC.Core.Multiplicity ( pattern Many )
import GHC.Builtin.Types ( unitTy )
import GHC.Tc.Utils.TcType
import GHC.Core.DataCon
import GHC.Core.ConLike
import GHC.Types.Id
import GHC.Types.Name
import GHC.Types.Name.Set hiding ( unitFV )
import GHC.Types.Name.Env
import GHC.Types.Name.Reader
import GHC.Types.Var
import GHC.Types.Basic
import GHC.Types.SrcLoc
import GHC.Types.Fixity
import GHC.Types.SourceText
import GHC.Data.FastString
import GHC.Data.Bag
import GHC.Settings.Constants

import GHC.Utils.Misc
import GHC.Utils.Outputable
import GHC.Utils.Panic

import Data.Either
import Data.Function
import Data.List ( partition, deleteBy )
import Data.Proxy
import Data.Data (Data)

{-
************************************************************************
*                                                                      *
        Some useful helpers for constructing syntax
*                                                                      *
************************************************************************

These functions attempt to construct a not-completely-useless 'SrcSpan'
from their components, compared with the @nl*@ functions below which
just attach 'noSrcSpan' to everything.
-}

-- | @e => (e)@
mkHsPar :: LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
mkHsPar :: forall (id :: Pass). LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
mkHsPar LHsExpr (GhcPass id)
e = forall l e. l -> e -> GenLocated l e
L (forall l e. GenLocated l e -> l
getLoc LHsExpr (GhcPass id)
e) (forall p. XPar p -> LHsExpr p -> HsExpr p
HsPar forall a. EpAnn a
noAnn LHsExpr (GhcPass id)
e)

mkSimpleMatch :: (Anno (Match (GhcPass p) (LocatedA (body (GhcPass p))))
                        ~ SrcSpanAnnA,
                  Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p))))
                        ~ SrcSpan)
              => HsMatchContext (NoGhcTc (GhcPass p))
              -> [LPat (GhcPass p)] -> LocatedA (body (GhcPass p))
              -> LMatch (GhcPass p) (LocatedA (body (GhcPass p)))
mkSimpleMatch :: forall (p :: Pass) (body :: * -> *).
(Anno (Match (GhcPass p) (LocatedA (body (GhcPass p))))
 ~ SrcSpanAnnA,
 Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p)))) ~ SrcSpan) =>
HsMatchContext (NoGhcTc (GhcPass p))
-> [LPat (GhcPass p)]
-> LocatedA (body (GhcPass p))
-> LMatch (GhcPass p) (LocatedA (body (GhcPass p)))
mkSimpleMatch HsMatchContext (NoGhcTc (GhcPass p))
ctxt [LPat (GhcPass p)]
pats LocatedA (body (GhcPass p))
rhs
  = forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc forall a b. (a -> b) -> a -> b
$
    Match { m_ext :: XCMatch (GhcPass p) (LocatedA (body (GhcPass p)))
m_ext = forall a. EpAnn a
noAnn, m_ctxt :: HsMatchContext (NoGhcTc (GhcPass p))
m_ctxt = HsMatchContext (NoGhcTc (GhcPass p))
ctxt, m_pats :: [LPat (GhcPass p)]
m_pats = [LPat (GhcPass p)]
pats
          , m_grhss :: GRHSs (GhcPass p) (LocatedA (body (GhcPass p)))
m_grhss = forall (p :: Pass) (body :: * -> *).
(Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p))))
 ~ SrcSpan) =>
SrcSpan
-> LocatedA (body (GhcPass p))
-> EpAnn GrhsAnn
-> GRHSs (GhcPass p) (LocatedA (body (GhcPass p)))
unguardedGRHSs (forall a. SrcSpanAnn' a -> SrcSpan
locA SrcSpanAnnA
loc) LocatedA (body (GhcPass p))
rhs forall a. EpAnn a
noAnn }
  where
    loc :: SrcSpanAnnA
loc = case [LPat (GhcPass p)]
pats of
                []      -> forall l e. GenLocated l e -> l
getLoc LocatedA (body (GhcPass p))
rhs
                (LPat (GhcPass p)
pat:[LPat (GhcPass p)]
_) -> forall a. Semigroup a => SrcAnn a -> SrcAnn a -> SrcAnn a
combineSrcSpansA (forall l e. GenLocated l e -> l
getLoc LPat (GhcPass p)
pat) (forall l e. GenLocated l e -> l
getLoc LocatedA (body (GhcPass p))
rhs)

unguardedGRHSs :: Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p))))
                     ~ SrcSpan
               => SrcSpan -> LocatedA (body (GhcPass p)) -> EpAnn GrhsAnn
               -> GRHSs (GhcPass p) (LocatedA (body (GhcPass p)))
unguardedGRHSs :: forall (p :: Pass) (body :: * -> *).
(Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p))))
 ~ SrcSpan) =>
SrcSpan
-> LocatedA (body (GhcPass p))
-> EpAnn GrhsAnn
-> GRHSs (GhcPass p) (LocatedA (body (GhcPass p)))
unguardedGRHSs SrcSpan
loc LocatedA (body (GhcPass p))
rhs EpAnn GrhsAnn
an
  = forall p body.
XCGRHSs p body -> [LGRHS p body] -> HsLocalBinds p -> GRHSs p body
GRHSs EpAnnComments
emptyComments (forall (p :: Pass) (body :: * -> *).
(Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p))))
 ~ SrcSpan) =>
EpAnn GrhsAnn
-> SrcSpan
-> LocatedA (body (GhcPass p))
-> [LGRHS (GhcPass p) (LocatedA (body (GhcPass p)))]
unguardedRHS EpAnn GrhsAnn
an SrcSpan
loc LocatedA (body (GhcPass p))
rhs) forall (a :: Pass) (b :: Pass).
HsLocalBindsLR (GhcPass a) (GhcPass b)
emptyLocalBinds

unguardedRHS :: Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p))))
                     ~ SrcSpan
             => EpAnn GrhsAnn -> SrcSpan -> LocatedA (body (GhcPass p))
             -> [LGRHS (GhcPass p) (LocatedA (body (GhcPass p)))]
unguardedRHS :: forall (p :: Pass) (body :: * -> *).
(Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p))))
 ~ SrcSpan) =>
EpAnn GrhsAnn
-> SrcSpan
-> LocatedA (body (GhcPass p))
-> [LGRHS (GhcPass p) (LocatedA (body (GhcPass p)))]
unguardedRHS EpAnn GrhsAnn
an SrcSpan
loc LocatedA (body (GhcPass p))
rhs = [forall l e. l -> e -> GenLocated l e
L SrcSpan
loc (forall p body.
XCGRHS p body -> [GuardLStmt p] -> body -> GRHS p body
GRHS EpAnn GrhsAnn
an [] LocatedA (body (GhcPass p))
rhs)]

type AnnoBody p body
  = ( XMG (GhcPass p) (LocatedA (body (GhcPass p))) ~ NoExtField
    , Anno [LocatedA (Match (GhcPass p) (LocatedA (body (GhcPass p))))] ~ SrcSpanAnnL
    , Anno (Match (GhcPass p) (LocatedA (body (GhcPass p)))) ~ SrcSpanAnnA
    )

mkMatchGroup :: AnnoBody p body
             => Origin
             -> LocatedL [LocatedA (Match (GhcPass p) (LocatedA (body (GhcPass p))))]
             -> MatchGroup (GhcPass p) (LocatedA (body (GhcPass p)))
mkMatchGroup :: forall (p :: Pass) (body :: * -> *).
AnnoBody p body =>
Origin
-> LocatedL
     [LocatedA (Match (GhcPass p) (LocatedA (body (GhcPass p))))]
-> MatchGroup (GhcPass p) (LocatedA (body (GhcPass p)))
mkMatchGroup Origin
origin LocatedL
  [LocatedA (Match (GhcPass p) (LocatedA (body (GhcPass p))))]
matches = MG { mg_ext :: XMG (GhcPass p) (LocatedA (body (GhcPass p)))
mg_ext = NoExtField
noExtField
                                 , mg_alts :: XRec (GhcPass p) [LMatch (GhcPass p) (LocatedA (body (GhcPass p)))]
mg_alts = LocatedL
  [LocatedA (Match (GhcPass p) (LocatedA (body (GhcPass p))))]
matches
                                 , mg_origin :: Origin
mg_origin = Origin
origin }

mkLocatedList :: Semigroup a
  => [GenLocated (SrcAnn a) e2] -> LocatedAn an [GenLocated (SrcAnn a) e2]
mkLocatedList :: forall a e2 an.
Semigroup a =>
[GenLocated (SrcAnn a) e2]
-> LocatedAn an [GenLocated (SrcAnn a) e2]
mkLocatedList [] = forall a an. a -> LocatedAn an a
noLocA []
mkLocatedList [GenLocated (SrcAnn a) e2]
ms = forall l e. l -> e -> GenLocated l e
L (forall ann. SrcSpan -> SrcAnn ann
noAnnSrcSpan forall a b. (a -> b) -> a -> b
$ forall a. SrcSpanAnn' a -> SrcSpan
locA forall a b. (a -> b) -> a -> b
$ forall a e1 e2.
Semigroup a =>
GenLocated (SrcAnn a) e1 -> GenLocated (SrcAnn a) e2 -> SrcAnn a
combineLocsA (forall a. [a] -> a
head [GenLocated (SrcAnn a) e2]
ms) (forall a. [a] -> a
last [GenLocated (SrcAnn a) e2]
ms)) [GenLocated (SrcAnn a) e2]
ms

mkHsApp :: LHsExpr (GhcPass id) -> LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
mkHsApp :: forall (id :: Pass).
LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
mkHsApp LHsExpr (GhcPass id)
e1 LHsExpr (GhcPass id)
e2 = forall a1 e1 a2 e2 e3 ann.
GenLocated (SrcSpanAnn' a1) e1
-> GenLocated (SrcSpanAnn' a2) e2
-> e3
-> GenLocated (SrcAnn ann) e3
addCLocAA LHsExpr (GhcPass id)
e1 LHsExpr (GhcPass id)
e2 (forall p. XApp p -> LHsExpr p -> LHsExpr p -> HsExpr p
HsApp EpAnnCO
noComments LHsExpr (GhcPass id)
e1 LHsExpr (GhcPass id)
e2)

mkHsAppWith
  :: (LHsExpr (GhcPass id) -> LHsExpr (GhcPass id) -> HsExpr (GhcPass id) -> LHsExpr (GhcPass id))
  -> LHsExpr (GhcPass id)
  -> LHsExpr (GhcPass id)
  -> LHsExpr (GhcPass id)
mkHsAppWith :: forall (id :: Pass).
(LHsExpr (GhcPass id)
 -> LHsExpr (GhcPass id)
 -> HsExpr (GhcPass id)
 -> LHsExpr (GhcPass id))
-> LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
mkHsAppWith LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
-> HsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
mkLocated LHsExpr (GhcPass id)
e1 LHsExpr (GhcPass id)
e2 = LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
-> HsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
mkLocated LHsExpr (GhcPass id)
e1 LHsExpr (GhcPass id)
e2 (forall p. XApp p -> LHsExpr p -> LHsExpr p -> HsExpr p
HsApp forall a. EpAnn a
noAnn LHsExpr (GhcPass id)
e1 LHsExpr (GhcPass id)
e2)

mkHsApps
  :: LHsExpr (GhcPass id) -> [LHsExpr (GhcPass id)] -> LHsExpr (GhcPass id)
mkHsApps :: forall (id :: Pass).
LHsExpr (GhcPass id)
-> [LHsExpr (GhcPass id)] -> LHsExpr (GhcPass id)
mkHsApps = forall (id :: Pass).
(LHsExpr (GhcPass id)
 -> LHsExpr (GhcPass id)
 -> HsExpr (GhcPass id)
 -> LHsExpr (GhcPass id))
-> LHsExpr (GhcPass id)
-> [LHsExpr (GhcPass id)]
-> LHsExpr (GhcPass id)
mkHsAppsWith forall a1 e1 a2 e2 e3 ann.
GenLocated (SrcSpanAnn' a1) e1
-> GenLocated (SrcSpanAnn' a2) e2
-> e3
-> GenLocated (SrcAnn ann) e3
addCLocAA

mkHsAppsWith
 :: (LHsExpr (GhcPass id) -> LHsExpr (GhcPass id) -> HsExpr (GhcPass id) -> LHsExpr (GhcPass id))
 -> LHsExpr (GhcPass id)
 -> [LHsExpr (GhcPass id)]
 -> LHsExpr (GhcPass id)
mkHsAppsWith :: forall (id :: Pass).
(LHsExpr (GhcPass id)
 -> LHsExpr (GhcPass id)
 -> HsExpr (GhcPass id)
 -> LHsExpr (GhcPass id))
-> LHsExpr (GhcPass id)
-> [LHsExpr (GhcPass id)]
-> LHsExpr (GhcPass id)
mkHsAppsWith LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
-> HsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
mkLocated = forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' (forall (id :: Pass).
(LHsExpr (GhcPass id)
 -> LHsExpr (GhcPass id)
 -> HsExpr (GhcPass id)
 -> LHsExpr (GhcPass id))
-> LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
mkHsAppWith LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
-> HsExpr (GhcPass id)
-> LHsExpr (GhcPass id)
mkLocated)

mkHsAppType :: LHsExpr GhcRn -> LHsWcType GhcRn -> LHsExpr GhcRn
mkHsAppType :: LHsExpr (GhcPass 'Renamed)
-> LHsWcType (GhcPass 'Renamed) -> LHsExpr (GhcPass 'Renamed)
mkHsAppType LHsExpr (GhcPass 'Renamed)
e LHsWcType (GhcPass 'Renamed)
t = forall a1 e1 a2 e2 e3 ann.
GenLocated (SrcSpanAnn' a1) e1
-> GenLocated (SrcSpanAnn' a2) e2
-> e3
-> GenLocated (SrcAnn ann) e3
addCLocAA GenLocated SrcSpanAnnA (HsType (GhcPass 'Renamed))
t_body LHsExpr (GhcPass 'Renamed)
e (forall p.
XAppTypeE p -> LHsExpr p -> LHsWcType (NoGhcTc p) -> HsExpr p
HsAppType NoExtField
noExtField LHsExpr (GhcPass 'Renamed)
e HsWildCardBndrs
  (GhcPass 'Renamed)
  (GenLocated SrcSpanAnnA (HsType (GhcPass 'Renamed)))
paren_wct)
  where
    t_body :: GenLocated SrcSpanAnnA (HsType (GhcPass 'Renamed))
t_body    = forall pass thing. HsWildCardBndrs pass thing -> thing
hswc_body LHsWcType (GhcPass 'Renamed)
t
    paren_wct :: HsWildCardBndrs
  (GhcPass 'Renamed)
  (GenLocated SrcSpanAnnA (HsType (GhcPass 'Renamed)))
paren_wct = LHsWcType (GhcPass 'Renamed)
t { hswc_body :: GenLocated SrcSpanAnnA (HsType (GhcPass 'Renamed))
hswc_body = forall (p :: Pass).
PprPrec -> LHsType (GhcPass p) -> LHsType (GhcPass p)
parenthesizeHsType PprPrec
appPrec GenLocated SrcSpanAnnA (HsType (GhcPass 'Renamed))
t_body }

mkHsAppTypes :: LHsExpr GhcRn -> [LHsWcType GhcRn] -> LHsExpr GhcRn
mkHsAppTypes :: LHsExpr (GhcPass 'Renamed)
-> [LHsWcType (GhcPass 'Renamed)] -> LHsExpr (GhcPass 'Renamed)
mkHsAppTypes = forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' LHsExpr (GhcPass 'Renamed)
-> LHsWcType (GhcPass 'Renamed) -> LHsExpr (GhcPass 'Renamed)
mkHsAppType

mkHsLam :: (IsPass p, XMG (GhcPass p) (LHsExpr (GhcPass p)) ~ NoExtField)
        => [LPat (GhcPass p)]
        -> LHsExpr (GhcPass p)
        -> LHsExpr (GhcPass p)
mkHsLam :: forall (p :: Pass).
(IsPass p, XMG (GhcPass p) (LHsExpr (GhcPass p)) ~ NoExtField) =>
[LPat (GhcPass p)] -> LHsExpr (GhcPass p) -> LHsExpr (GhcPass p)
mkHsLam [LPat (GhcPass p)]
pats LHsExpr (GhcPass p)
body = forall (id :: Pass). LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
mkHsPar (forall l e. l -> e -> GenLocated l e
L (forall l e. GenLocated l e -> l
getLoc LHsExpr (GhcPass p)
body) (forall p. XLam p -> MatchGroup p (LHsExpr p) -> HsExpr p
HsLam NoExtField
noExtField MatchGroup (GhcPass p) (LocatedA (HsExpr (GhcPass p)))
matches))
  where
    matches :: MatchGroup (GhcPass p) (LocatedA (HsExpr (GhcPass p)))
matches = forall (p :: Pass) (body :: * -> *).
AnnoBody p body =>
Origin
-> LocatedL
     [LocatedA (Match (GhcPass p) (LocatedA (body (GhcPass p))))]
-> MatchGroup (GhcPass p) (LocatedA (body (GhcPass p)))
mkMatchGroup Origin
Generated
                           (forall a an. a -> LocatedAn an a
noLocA [forall (p :: Pass) (body :: * -> *).
(Anno (Match (GhcPass p) (LocatedA (body (GhcPass p))))
 ~ SrcSpanAnnA,
 Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p)))) ~ SrcSpan) =>
HsMatchContext (NoGhcTc (GhcPass p))
-> [LPat (GhcPass p)]
-> LocatedA (body (GhcPass p))
-> LMatch (GhcPass p) (LocatedA (body (GhcPass p)))
mkSimpleMatch forall p. HsMatchContext p
LambdaExpr [GenLocated SrcSpanAnnA (Pat (GhcPass p))]
pats' LHsExpr (GhcPass p)
body])
    pats' :: [GenLocated SrcSpanAnnA (Pat (GhcPass p))]
pats' = forall a b. (a -> b) -> [a] -> [b]
map (forall (p :: Pass).
IsPass p =>
PprPrec -> LPat (GhcPass p) -> LPat (GhcPass p)
parenthesizePat PprPrec
appPrec) [LPat (GhcPass p)]
pats

mkHsLams :: [TyVar] -> [EvVar] -> LHsExpr GhcTc -> LHsExpr GhcTc
mkHsLams :: [Id] -> [Id] -> LHsExpr GhcTc -> LHsExpr GhcTc
mkHsLams [Id]
tyvars [Id]
dicts LHsExpr GhcTc
expr = HsWrapper -> LHsExpr GhcTc -> LHsExpr GhcTc
mkLHsWrap ([Id] -> HsWrapper
mkWpTyLams [Id]
tyvars
                                       HsWrapper -> HsWrapper -> HsWrapper
<.> [Id] -> HsWrapper
mkWpLams [Id]
dicts) LHsExpr GhcTc
expr

-- |A simple case alternative with a single pattern, no binds, no guards;
-- pre-typechecking
mkHsCaseAlt :: (Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p))))
                     ~ SrcSpan,
                 Anno (Match (GhcPass p) (LocatedA (body (GhcPass p))))
                        ~ SrcSpanAnnA)
            => LPat (GhcPass p) -> (LocatedA (body (GhcPass p)))
            -> LMatch (GhcPass p) (LocatedA (body (GhcPass p)))
mkHsCaseAlt :: forall (p :: Pass) (body :: * -> *).
(Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p)))) ~ SrcSpan,
 Anno (Match (GhcPass p) (LocatedA (body (GhcPass p))))
 ~ SrcSpanAnnA) =>
LPat (GhcPass p)
-> LocatedA (body (GhcPass p))
-> LMatch (GhcPass p) (LocatedA (body (GhcPass p)))
mkHsCaseAlt LPat (GhcPass p)
pat LocatedA (body (GhcPass p))
expr
  = forall (p :: Pass) (body :: * -> *).
(Anno (Match (GhcPass p) (LocatedA (body (GhcPass p))))
 ~ SrcSpanAnnA,
 Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p)))) ~ SrcSpan) =>
HsMatchContext (NoGhcTc (GhcPass p))
-> [LPat (GhcPass p)]
-> LocatedA (body (GhcPass p))
-> LMatch (GhcPass p) (LocatedA (body (GhcPass p)))
mkSimpleMatch forall p. HsMatchContext p
CaseAlt [LPat (GhcPass p)
pat] LocatedA (body (GhcPass p))
expr

nlHsTyApp :: Id -> [Type] -> LHsExpr GhcTc
nlHsTyApp :: Id -> [Type] -> LHsExpr GhcTc
nlHsTyApp Id
fun_id [Type]
tys
  = forall a an. a -> LocatedAn an a
noLocA (HsWrapper -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrap ([Type] -> HsWrapper
mkWpTyApps [Type]
tys) (forall p. XVar p -> LIdP p -> HsExpr p
HsVar NoExtField
noExtField (forall a an. a -> LocatedAn an a
noLocA Id
fun_id)))

nlHsTyApps :: Id -> [Type] -> [LHsExpr GhcTc] -> LHsExpr GhcTc
nlHsTyApps :: Id -> [Type] -> [LHsExpr GhcTc] -> LHsExpr GhcTc
nlHsTyApps Id
fun_id [Type]
tys [LHsExpr GhcTc]
xs = forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' forall (id :: Pass).
IsPass id =>
LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
nlHsApp (Id -> [Type] -> LHsExpr GhcTc
nlHsTyApp Id
fun_id [Type]
tys) [LHsExpr GhcTc]
xs

--------- Adding parens ---------
-- | Wrap in parens if @'hsExprNeedsParens' appPrec@ says it needs them
-- So @f x@ becomes @(f x)@, but @3@ stays as @3@.
mkLHsPar :: IsPass id => LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
mkLHsPar :: forall (id :: Pass).
IsPass id =>
LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
mkLHsPar le :: LHsExpr (GhcPass id)
le@(L SrcSpanAnnA
loc HsExpr (GhcPass id)
e)
  | forall (p :: Pass).
IsPass p =>
PprPrec -> HsExpr (GhcPass p) -> Bool
hsExprNeedsParens PprPrec
appPrec HsExpr (GhcPass id)
e = forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc (forall p. XPar p -> LHsExpr p -> HsExpr p
HsPar forall a. EpAnn a
noAnn LHsExpr (GhcPass id)
le)
  | Bool
otherwise                   = LHsExpr (GhcPass id)
le

mkParPat :: IsPass p => LPat (GhcPass p) -> LPat (GhcPass p)
mkParPat :: forall (p :: Pass).
IsPass p =>
LPat (GhcPass p) -> LPat (GhcPass p)
mkParPat lp :: LPat (GhcPass p)
lp@(L SrcSpanAnnA
loc Pat (GhcPass p)
p)
  | forall (p :: Pass). IsPass p => PprPrec -> Pat (GhcPass p) -> Bool
patNeedsParens PprPrec
appPrec Pat (GhcPass p)
p = forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc (forall p. XParPat p -> LPat p -> Pat p
ParPat forall a. EpAnn a
noAnn LPat (GhcPass p)
lp)
  | Bool
otherwise                = LPat (GhcPass p)
lp

nlParPat :: LPat (GhcPass name) -> LPat (GhcPass name)
nlParPat :: forall (name :: Pass). LPat (GhcPass name) -> LPat (GhcPass name)
nlParPat LPat (GhcPass name)
p = forall a an. a -> LocatedAn an a
noLocA (forall p. XParPat p -> LPat p -> Pat p
ParPat forall a. EpAnn a
noAnn LPat (GhcPass name)
p)

-------------------------------
-- These are the bits of syntax that contain rebindable names
-- See GHC.Rename.Env.lookupSyntax

mkHsIntegral   :: IntegralLit -> HsOverLit GhcPs
mkHsFractional :: FractionalLit -> HsOverLit GhcPs
mkHsIsString   :: SourceText -> FastString -> HsOverLit GhcPs
mkHsDo         :: HsStmtContext GhcRn -> LocatedL [ExprLStmt GhcPs] -> HsExpr GhcPs
mkHsDoAnns     :: HsStmtContext GhcRn -> LocatedL [ExprLStmt GhcPs] -> EpAnn AnnList -> HsExpr GhcPs
mkHsComp       :: HsStmtContext GhcRn -> [ExprLStmt GhcPs] -> LHsExpr GhcPs
               -> HsExpr GhcPs
mkHsCompAnns   :: HsStmtContext GhcRn -> [ExprLStmt GhcPs] -> LHsExpr GhcPs
               -> EpAnn AnnList
               -> HsExpr GhcPs

mkNPat      :: Located (HsOverLit GhcPs) -> Maybe (SyntaxExpr GhcPs) -> EpAnn [AddEpAnn]
            -> Pat GhcPs
mkNPlusKPat :: LocatedN RdrName -> Located (HsOverLit GhcPs) -> EpAnn EpaLocation
            -> Pat GhcPs

-- NB: The following functions all use noSyntaxExpr: the generated expressions
--     will not work with rebindable syntax if used after the renamer
mkLastStmt :: IsPass idR => LocatedA (bodyR (GhcPass idR))
           -> StmtLR (GhcPass idL) (GhcPass idR) (LocatedA (bodyR (GhcPass idR)))
mkBodyStmt :: LocatedA (bodyR GhcPs)
           -> StmtLR (GhcPass idL) GhcPs (LocatedA (bodyR GhcPs))
mkPsBindStmt :: EpAnn [AddEpAnn] -> LPat GhcPs -> LocatedA (bodyR GhcPs)
             -> StmtLR GhcPs GhcPs (LocatedA (bodyR GhcPs))
mkRnBindStmt :: LPat GhcRn -> LocatedA (bodyR GhcRn)
             -> StmtLR GhcRn GhcRn (LocatedA (bodyR GhcRn))
mkTcBindStmt :: LPat GhcTc -> LocatedA (bodyR GhcTc)
             -> StmtLR GhcTc GhcTc (LocatedA (bodyR GhcTc))

emptyRecStmt     :: (Anno [GenLocated
                             (Anno (StmtLR (GhcPass idL) GhcPs bodyR))
                             (StmtLR (GhcPass idL) GhcPs bodyR)]
                        ~ SrcSpanAnnL)
                 => StmtLR (GhcPass idL) GhcPs bodyR
emptyRecStmtName :: (Anno [GenLocated
                             (Anno (StmtLR GhcRn GhcRn bodyR))
                             (StmtLR GhcRn GhcRn bodyR)]
                        ~ SrcSpanAnnL)
                 => StmtLR GhcRn GhcRn bodyR
emptyRecStmtId   :: Stmt GhcTc (LocatedA (HsCmd GhcTc))
mkRecStmt        :: (Anno [GenLocated
                             (Anno (StmtLR (GhcPass idL) GhcPs bodyR))
                             (StmtLR (GhcPass idL) GhcPs bodyR)]
                        ~ SrcSpanAnnL)
                 => EpAnn AnnList
                 -> LocatedL [LStmtLR (GhcPass idL) GhcPs bodyR]
                 -> StmtLR (GhcPass idL) GhcPs bodyR


mkHsIntegral :: IntegralLit -> HsOverLit GhcPs
mkHsIntegral     IntegralLit
i  = forall p. XOverLit p -> OverLitVal -> HsExpr p -> HsOverLit p
OverLit NoExtField
noExtField (IntegralLit -> OverLitVal
HsIntegral       IntegralLit
i) forall (p :: Pass). HsExpr (GhcPass p)
noExpr
mkHsFractional :: FractionalLit -> HsOverLit GhcPs
mkHsFractional   FractionalLit
f  = forall p. XOverLit p -> OverLitVal -> HsExpr p -> HsOverLit p
OverLit NoExtField
noExtField (FractionalLit -> OverLitVal
HsFractional     FractionalLit
f) forall (p :: Pass). HsExpr (GhcPass p)
noExpr
mkHsIsString :: SourceText -> FastString -> HsOverLit GhcPs
mkHsIsString SourceText
src FastString
s  = forall p. XOverLit p -> OverLitVal -> HsExpr p -> HsOverLit p
OverLit NoExtField
noExtField (SourceText -> FastString -> OverLitVal
HsIsString   SourceText
src FastString
s) forall (p :: Pass). HsExpr (GhcPass p)
noExpr

mkHsDo :: HsStmtContext (GhcPass 'Renamed)
-> LocatedL [ExprLStmt GhcPs] -> HsExpr GhcPs
mkHsDo     HsStmtContext (GhcPass 'Renamed)
ctxt LocatedL [ExprLStmt GhcPs]
stmts      = forall p.
XDo p
-> HsStmtContext (HsDoRn p) -> XRec p [ExprLStmt p] -> HsExpr p
HsDo forall a. EpAnn a
noAnn HsStmtContext (GhcPass 'Renamed)
ctxt LocatedL [ExprLStmt GhcPs]
stmts
mkHsDoAnns :: HsStmtContext (GhcPass 'Renamed)
-> LocatedL [ExprLStmt GhcPs] -> EpAnn AnnList -> HsExpr GhcPs
mkHsDoAnns HsStmtContext (GhcPass 'Renamed)
ctxt LocatedL [ExprLStmt GhcPs]
stmts EpAnn AnnList
anns = forall p.
XDo p
-> HsStmtContext (HsDoRn p) -> XRec p [ExprLStmt p] -> HsExpr p
HsDo EpAnn AnnList
anns  HsStmtContext (GhcPass 'Renamed)
ctxt LocatedL [ExprLStmt GhcPs]
stmts
mkHsComp :: HsStmtContext (GhcPass 'Renamed)
-> [ExprLStmt GhcPs] -> LHsExpr GhcPs -> HsExpr GhcPs
mkHsComp HsStmtContext (GhcPass 'Renamed)
ctxt [ExprLStmt GhcPs]
stmts LHsExpr GhcPs
expr = HsStmtContext (GhcPass 'Renamed)
-> [ExprLStmt GhcPs]
-> LHsExpr GhcPs
-> EpAnn AnnList
-> HsExpr GhcPs
mkHsCompAnns HsStmtContext (GhcPass 'Renamed)
ctxt [ExprLStmt GhcPs]
stmts LHsExpr GhcPs
expr forall a. EpAnn a
noAnn
mkHsCompAnns :: HsStmtContext (GhcPass 'Renamed)
-> [ExprLStmt GhcPs]
-> LHsExpr GhcPs
-> EpAnn AnnList
-> HsExpr GhcPs
mkHsCompAnns HsStmtContext (GhcPass 'Renamed)
ctxt [ExprLStmt GhcPs]
stmts LHsExpr GhcPs
expr EpAnn AnnList
anns = HsStmtContext (GhcPass 'Renamed)
-> LocatedL [ExprLStmt GhcPs] -> EpAnn AnnList -> HsExpr GhcPs
mkHsDoAnns HsStmtContext (GhcPass 'Renamed)
ctxt (forall a e2 an.
Semigroup a =>
[GenLocated (SrcAnn a) e2]
-> LocatedAn an [GenLocated (SrcAnn a) e2]
mkLocatedList ([ExprLStmt GhcPs]
stmts forall a. [a] -> [a] -> [a]
++ [GenLocated
  SrcSpanAnnA (StmtLR GhcPs GhcPs (LocatedA (HsExpr GhcPs)))
last_stmt])) EpAnn AnnList
anns
  where
    -- Strip the annotations from the location, they are in the embedded expr
    last_stmt :: GenLocated
  SrcSpanAnnA (StmtLR GhcPs GhcPs (LocatedA (HsExpr GhcPs)))
last_stmt = forall l e. l -> e -> GenLocated l e
L (forall ann. SrcSpan -> SrcAnn ann
noAnnSrcSpan forall a b. (a -> b) -> a -> b
$ forall a e. GenLocated (SrcSpanAnn' a) e -> SrcSpan
getLocA LHsExpr GhcPs
expr) forall a b. (a -> b) -> a -> b
$ forall (idR :: Pass) (bodyR :: * -> *) (idL :: Pass).
IsPass idR =>
LocatedA (bodyR (GhcPass idR))
-> StmtLR
     (GhcPass idL) (GhcPass idR) (LocatedA (bodyR (GhcPass idR)))
mkLastStmt LHsExpr GhcPs
expr

-- restricted to GhcPs because other phases might need a SyntaxExpr
mkHsIf :: LHsExpr GhcPs -> LHsExpr GhcPs -> LHsExpr GhcPs -> EpAnn AnnsIf
       -> HsExpr GhcPs
mkHsIf :: LHsExpr GhcPs
-> LHsExpr GhcPs -> LHsExpr GhcPs -> EpAnn AnnsIf -> HsExpr GhcPs
mkHsIf LHsExpr GhcPs
c LHsExpr GhcPs
a LHsExpr GhcPs
b EpAnn AnnsIf
anns = forall p. XIf p -> LHsExpr p -> LHsExpr p -> LHsExpr p -> HsExpr p
HsIf EpAnn AnnsIf
anns LHsExpr GhcPs
c LHsExpr GhcPs
a LHsExpr GhcPs
b

-- restricted to GhcPs because other phases might need a SyntaxExpr
mkHsCmdIf :: LHsExpr GhcPs -> LHsCmd GhcPs -> LHsCmd GhcPs -> EpAnn AnnsIf
       -> HsCmd GhcPs
mkHsCmdIf :: LHsExpr GhcPs
-> LHsCmd GhcPs -> LHsCmd GhcPs -> EpAnn AnnsIf -> HsCmd GhcPs
mkHsCmdIf LHsExpr GhcPs
c LHsCmd GhcPs
a LHsCmd GhcPs
b EpAnn AnnsIf
anns = forall id.
XCmdIf id
-> SyntaxExpr id
-> LHsExpr id
-> LHsCmd id
-> LHsCmd id
-> HsCmd id
HsCmdIf EpAnn AnnsIf
anns forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr LHsExpr GhcPs
c LHsCmd GhcPs
a LHsCmd GhcPs
b

mkNPat :: Located (HsOverLit GhcPs)
-> Maybe (SyntaxExpr GhcPs) -> EpAnn [AddEpAnn] -> Pat GhcPs
mkNPat Located (HsOverLit GhcPs)
lit Maybe (SyntaxExpr GhcPs)
neg EpAnn [AddEpAnn]
anns  = forall p.
XNPat p
-> XRec p (HsOverLit p)
-> Maybe (SyntaxExpr p)
-> SyntaxExpr p
-> Pat p
NPat EpAnn [AddEpAnn]
anns Located (HsOverLit GhcPs)
lit Maybe (SyntaxExpr GhcPs)
neg forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr
mkNPlusKPat :: LocatedN RdrName
-> Located (HsOverLit GhcPs) -> EpAnn EpaLocation -> Pat GhcPs
mkNPlusKPat LocatedN RdrName
id Located (HsOverLit GhcPs)
lit EpAnn EpaLocation
anns
  = forall p.
XNPlusKPat p
-> LIdP p
-> XRec p (HsOverLit p)
-> HsOverLit p
-> SyntaxExpr p
-> SyntaxExpr p
-> Pat p
NPlusKPat EpAnn EpaLocation
anns LocatedN RdrName
id Located (HsOverLit GhcPs)
lit (forall l e. GenLocated l e -> e
unLoc Located (HsOverLit GhcPs)
lit) forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr

mkTransformStmt    :: EpAnn [AddEpAnn] -> [ExprLStmt GhcPs] -> LHsExpr GhcPs
                   -> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
mkTransformByStmt  :: EpAnn [AddEpAnn] -> [ExprLStmt GhcPs] -> LHsExpr GhcPs
                   -> LHsExpr GhcPs -> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
mkGroupUsingStmt   :: EpAnn [AddEpAnn] -> [ExprLStmt GhcPs] -> LHsExpr GhcPs
                   -> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
mkGroupByUsingStmt :: EpAnn [AddEpAnn] -> [ExprLStmt GhcPs] -> LHsExpr GhcPs
                   -> LHsExpr GhcPs
                   -> StmtLR GhcPs GhcPs (LHsExpr GhcPs)

emptyTransStmt :: EpAnn [AddEpAnn] -> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
emptyTransStmt :: EpAnn [AddEpAnn] -> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
emptyTransStmt EpAnn [AddEpAnn]
anns = TransStmt { trS_ext :: XTransStmt GhcPs GhcPs (LocatedA (HsExpr GhcPs))
trS_ext = EpAnn [AddEpAnn]
anns
                                , trS_form :: TransForm
trS_form = forall a. String -> a
panic String
"emptyTransStmt: form"
                                , trS_stmts :: [ExprLStmt GhcPs]
trS_stmts = [], trS_bndrs :: [(IdP GhcPs, IdP GhcPs)]
trS_bndrs = []
                                , trS_by :: Maybe (LHsExpr GhcPs)
trS_by = forall a. Maybe a
Nothing, trS_using :: LHsExpr GhcPs
trS_using = forall a an. a -> LocatedAn an a
noLocA forall (p :: Pass). HsExpr (GhcPass p)
noExpr
                                , trS_ret :: SyntaxExpr GhcPs
trS_ret = forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr, trS_bind :: SyntaxExpr GhcPs
trS_bind = forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr
                                , trS_fmap :: HsExpr GhcPs
trS_fmap = forall (p :: Pass). HsExpr (GhcPass p)
noExpr }
mkTransformStmt :: EpAnn [AddEpAnn]
-> [ExprLStmt GhcPs]
-> LHsExpr GhcPs
-> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
mkTransformStmt    EpAnn [AddEpAnn]
a [ExprLStmt GhcPs]
ss LHsExpr GhcPs
u   = (EpAnn [AddEpAnn] -> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
emptyTransStmt EpAnn [AddEpAnn]
a) { trS_form :: TransForm
trS_form = TransForm
ThenForm,  trS_stmts :: [ExprLStmt GhcPs]
trS_stmts = [ExprLStmt GhcPs]
ss, trS_using :: LHsExpr GhcPs
trS_using = LHsExpr GhcPs
u }
mkTransformByStmt :: EpAnn [AddEpAnn]
-> [ExprLStmt GhcPs]
-> LHsExpr GhcPs
-> LHsExpr GhcPs
-> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
mkTransformByStmt  EpAnn [AddEpAnn]
a [ExprLStmt GhcPs]
ss LHsExpr GhcPs
u LHsExpr GhcPs
b = (EpAnn [AddEpAnn] -> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
emptyTransStmt EpAnn [AddEpAnn]
a) { trS_form :: TransForm
trS_form = TransForm
ThenForm,  trS_stmts :: [ExprLStmt GhcPs]
trS_stmts = [ExprLStmt GhcPs]
ss, trS_using :: LHsExpr GhcPs
trS_using = LHsExpr GhcPs
u, trS_by :: Maybe (LHsExpr GhcPs)
trS_by = forall a. a -> Maybe a
Just LHsExpr GhcPs
b }
mkGroupUsingStmt :: EpAnn [AddEpAnn]
-> [ExprLStmt GhcPs]
-> LHsExpr GhcPs
-> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
mkGroupUsingStmt   EpAnn [AddEpAnn]
a [ExprLStmt GhcPs]
ss LHsExpr GhcPs
u   = (EpAnn [AddEpAnn] -> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
emptyTransStmt EpAnn [AddEpAnn]
a) { trS_form :: TransForm
trS_form = TransForm
GroupForm, trS_stmts :: [ExprLStmt GhcPs]
trS_stmts = [ExprLStmt GhcPs]
ss, trS_using :: LHsExpr GhcPs
trS_using = LHsExpr GhcPs
u }
mkGroupByUsingStmt :: EpAnn [AddEpAnn]
-> [ExprLStmt GhcPs]
-> LHsExpr GhcPs
-> LHsExpr GhcPs
-> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
mkGroupByUsingStmt EpAnn [AddEpAnn]
a [ExprLStmt GhcPs]
ss LHsExpr GhcPs
b LHsExpr GhcPs
u = (EpAnn [AddEpAnn] -> StmtLR GhcPs GhcPs (LHsExpr GhcPs)
emptyTransStmt EpAnn [AddEpAnn]
a) { trS_form :: TransForm
trS_form = TransForm
GroupForm, trS_stmts :: [ExprLStmt GhcPs]
trS_stmts = [ExprLStmt GhcPs]
ss, trS_using :: LHsExpr GhcPs
trS_using = LHsExpr GhcPs
u, trS_by :: Maybe (LHsExpr GhcPs)
trS_by = forall a. a -> Maybe a
Just LHsExpr GhcPs
b }

mkLastStmt :: forall (idR :: Pass) (bodyR :: * -> *) (idL :: Pass).
IsPass idR =>
LocatedA (bodyR (GhcPass idR))
-> StmtLR
     (GhcPass idL) (GhcPass idR) (LocatedA (bodyR (GhcPass idR)))
mkLastStmt LocatedA (bodyR (GhcPass idR))
body = forall idL idR body.
XLastStmt idL idR body
-> body -> Maybe Bool -> SyntaxExpr idR -> StmtLR idL idR body
LastStmt NoExtField
noExtField LocatedA (bodyR (GhcPass idR))
body forall a. Maybe a
Nothing forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr
mkBodyStmt :: forall (bodyR :: * -> *) (idL :: Pass).
LocatedA (bodyR GhcPs)
-> StmtLR (GhcPass idL) GhcPs (LocatedA (bodyR GhcPs))
mkBodyStmt LocatedA (bodyR GhcPs)
body
  = forall idL idR body.
XBodyStmt idL idR body
-> body -> SyntaxExpr idR -> SyntaxExpr idR -> StmtLR idL idR body
BodyStmt NoExtField
noExtField LocatedA (bodyR GhcPs)
body forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr
mkPsBindStmt :: forall (bodyR :: * -> *).
EpAnn [AddEpAnn]
-> LPat GhcPs
-> LocatedA (bodyR GhcPs)
-> StmtLR GhcPs GhcPs (LocatedA (bodyR GhcPs))
mkPsBindStmt EpAnn [AddEpAnn]
ann LPat GhcPs
pat LocatedA (bodyR GhcPs)
body = forall idL idR body.
XBindStmt idL idR body -> LPat idL -> body -> StmtLR idL idR body
BindStmt EpAnn [AddEpAnn]
ann LPat GhcPs
pat LocatedA (bodyR GhcPs)
body
mkRnBindStmt :: forall (bodyR :: * -> *).
LPat (GhcPass 'Renamed)
-> LocatedA (bodyR (GhcPass 'Renamed))
-> StmtLR
     (GhcPass 'Renamed)
     (GhcPass 'Renamed)
     (LocatedA (bodyR (GhcPass 'Renamed)))
mkRnBindStmt LPat (GhcPass 'Renamed)
pat LocatedA (bodyR (GhcPass 'Renamed))
body = forall idL idR body.
XBindStmt idL idR body -> LPat idL -> body -> StmtLR idL idR body
BindStmt (XBindStmtRn { xbsrn_bindOp :: SyntaxExpr (GhcPass 'Renamed)
xbsrn_bindOp = forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr, xbsrn_failOp :: FailOperator (GhcPass 'Renamed)
xbsrn_failOp = forall a. Maybe a
Nothing }) LPat (GhcPass 'Renamed)
pat LocatedA (bodyR (GhcPass 'Renamed))
body
mkTcBindStmt :: forall (bodyR :: * -> *).
LPat GhcTc
-> LocatedA (bodyR GhcTc)
-> StmtLR GhcTc GhcTc (LocatedA (bodyR GhcTc))
mkTcBindStmt LPat GhcTc
pat LocatedA (bodyR GhcTc)
body = forall idL idR body.
XBindStmt idL idR body -> LPat idL -> body -> StmtLR idL idR body
BindStmt (XBindStmtTc { xbstc_bindOp :: SyntaxExpr GhcTc
xbstc_bindOp = forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr,
                                                xbstc_boundResultType :: Type
xbstc_boundResultType = Type
unitTy,
                                                   -- unitTy is a dummy value
                                                   -- can't panic here: it's forced during zonking
                                                xbstc_boundResultMult :: Type
xbstc_boundResultMult = Type
Many,
                                                xbstc_failOp :: FailOperator GhcTc
xbstc_failOp = forall a. Maybe a
Nothing }) LPat GhcTc
pat LocatedA (bodyR GhcTc)
body

emptyRecStmt' :: forall idL idR body .
  (WrapXRec (GhcPass idR) [LStmtLR (GhcPass idL) (GhcPass idR) body], IsPass idR)
              => XRecStmt (GhcPass idL) (GhcPass idR) body
              -> StmtLR (GhcPass idL) (GhcPass idR) body
emptyRecStmt' :: forall (idL :: Pass) (idR :: Pass) body.
(WrapXRec (GhcPass idR) [LStmtLR (GhcPass idL) (GhcPass idR) body],
 IsPass idR) =>
XRecStmt (GhcPass idL) (GhcPass idR) body
-> StmtLR (GhcPass idL) (GhcPass idR) body
emptyRecStmt' XRecStmt (GhcPass idL) (GhcPass idR) body
tyVal =
   RecStmt
     { recS_stmts :: XRec (GhcPass idR) [LStmtLR (GhcPass idL) (GhcPass idR) body]
recS_stmts = forall p a. WrapXRec p a => a -> XRec p a
wrapXRec @(GhcPass idR) []
     , recS_later_ids :: [IdP (GhcPass idR)]
recS_later_ids = []
     , recS_rec_ids :: [IdP (GhcPass idR)]
recS_rec_ids = []
     , recS_ret_fn :: SyntaxExpr (GhcPass idR)
recS_ret_fn = forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr
     , recS_mfix_fn :: SyntaxExpr (GhcPass idR)
recS_mfix_fn = forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr
     , recS_bind_fn :: SyntaxExpr (GhcPass idR)
recS_bind_fn = forall (p :: Pass). IsPass p => SyntaxExpr (GhcPass p)
noSyntaxExpr
     , recS_ext :: XRecStmt (GhcPass idL) (GhcPass idR) body
recS_ext = XRecStmt (GhcPass idL) (GhcPass idR) body
tyVal }

unitRecStmtTc :: RecStmtTc
unitRecStmtTc :: RecStmtTc
unitRecStmtTc = RecStmtTc { recS_bind_ty :: Type
recS_bind_ty = Type
unitTy
                          , recS_later_rets :: [HsExpr GhcTc]
recS_later_rets = []
                          , recS_rec_rets :: [HsExpr GhcTc]
recS_rec_rets = []
                          , recS_ret_ty :: Type
recS_ret_ty = Type
unitTy }

emptyRecStmt :: forall (idL :: Pass) bodyR.
(Anno
   [GenLocated
      (Anno (StmtLR (GhcPass idL) GhcPs bodyR))
      (StmtLR (GhcPass idL) GhcPs bodyR)]
 ~ SrcSpanAnn' (EpAnn AnnList)) =>
StmtLR (GhcPass idL) GhcPs bodyR
emptyRecStmt     = forall (idL :: Pass) (idR :: Pass) body.
(WrapXRec (GhcPass idR) [LStmtLR (GhcPass idL) (GhcPass idR) body],
 IsPass idR) =>
XRecStmt (GhcPass idL) (GhcPass idR) body
-> StmtLR (GhcPass idL) (GhcPass idR) body
emptyRecStmt' forall a. EpAnn a
noAnn
emptyRecStmtName :: forall bodyR.
(Anno
   [GenLocated
      (Anno (StmtLR (GhcPass 'Renamed) (GhcPass 'Renamed) bodyR))
      (StmtLR (GhcPass 'Renamed) (GhcPass 'Renamed) bodyR)]
 ~ SrcSpanAnn' (EpAnn AnnList)) =>
StmtLR (GhcPass 'Renamed) (GhcPass 'Renamed) bodyR
emptyRecStmtName = forall (idL :: Pass) (idR :: Pass) body.
(WrapXRec (GhcPass idR) [LStmtLR (GhcPass idL) (GhcPass idR) body],
 IsPass idR) =>
XRecStmt (GhcPass idL) (GhcPass idR) body
-> StmtLR (GhcPass idL) (GhcPass idR) body
emptyRecStmt' NoExtField
noExtField
emptyRecStmtId :: StmtLR GhcTc GhcTc (LocatedA (HsCmd GhcTc))
emptyRecStmtId   = forall (idL :: Pass) (idR :: Pass) body.
(WrapXRec (GhcPass idR) [LStmtLR (GhcPass idL) (GhcPass idR) body],
 IsPass idR) =>
XRecStmt (GhcPass idL) (GhcPass idR) body
-> StmtLR (GhcPass idL) (GhcPass idR) body
emptyRecStmt' RecStmtTc
unitRecStmtTc
                                        -- a panic might trigger during zonking
mkRecStmt :: forall (idL :: Pass) bodyR.
(Anno
   [GenLocated
      (Anno (StmtLR (GhcPass idL) GhcPs bodyR))
      (StmtLR (GhcPass idL) GhcPs bodyR)]
 ~ SrcSpanAnn' (EpAnn AnnList)) =>
EpAnn AnnList
-> LocatedL [LStmtLR (GhcPass idL) GhcPs bodyR]
-> StmtLR (GhcPass idL) GhcPs bodyR
mkRecStmt EpAnn AnnList
anns LocatedL [LStmtLR (GhcPass idL) GhcPs bodyR]
stmts  = (forall (idL :: Pass) (idR :: Pass) body.
(WrapXRec (GhcPass idR) [LStmtLR (GhcPass idL) (GhcPass idR) body],
 IsPass idR) =>
XRecStmt (GhcPass idL) (GhcPass idR) body
-> StmtLR (GhcPass idL) (GhcPass idR) body
emptyRecStmt' EpAnn AnnList
anns) { recS_stmts :: XRec GhcPs [LStmtLR (GhcPass idL) GhcPs bodyR]
recS_stmts = LocatedL [LStmtLR (GhcPass idL) GhcPs bodyR]
stmts }

mkLetStmt :: EpAnn [AddEpAnn] -> HsLocalBinds GhcPs -> StmtLR GhcPs GhcPs (LocatedA b)
mkLetStmt :: forall b.
EpAnn [AddEpAnn]
-> HsLocalBinds GhcPs -> StmtLR GhcPs GhcPs (LocatedA b)
mkLetStmt EpAnn [AddEpAnn]
anns HsLocalBinds GhcPs
binds = forall idL idR body.
XLetStmt idL idR body
-> HsLocalBindsLR idL idR -> StmtLR idL idR body
LetStmt EpAnn [AddEpAnn]
anns HsLocalBinds GhcPs
binds

-------------------------------
-- | A useful function for building @OpApps@.  The operator is always a
-- variable, and we don't know the fixity yet.
mkHsOpApp :: LHsExpr GhcPs -> IdP GhcPs -> LHsExpr GhcPs -> HsExpr GhcPs
mkHsOpApp :: LHsExpr GhcPs -> IdP GhcPs -> LHsExpr GhcPs -> HsExpr GhcPs
mkHsOpApp LHsExpr GhcPs
e1 IdP GhcPs
op LHsExpr GhcPs
e2 = forall p.
XOpApp p -> LHsExpr p -> LHsExpr p -> LHsExpr p -> HsExpr p
OpApp forall a. EpAnn a
noAnn LHsExpr GhcPs
e1 (forall a an. a -> LocatedAn an a
noLocA (forall p. XVar p -> LIdP p -> HsExpr p
HsVar NoExtField
noExtField (forall a an. a -> LocatedAn an a
noLocA IdP GhcPs
op))) LHsExpr GhcPs
e2

unqualSplice :: RdrName
unqualSplice :: RdrName
unqualSplice = OccName -> RdrName
mkRdrUnqual (FastString -> OccName
mkVarOccFS (String -> FastString
fsLit String
"splice"))

mkUntypedSplice :: EpAnn [AddEpAnn] -> SpliceDecoration -> LHsExpr GhcPs -> HsSplice GhcPs
mkUntypedSplice :: EpAnn [AddEpAnn]
-> SpliceDecoration -> LHsExpr GhcPs -> HsSplice GhcPs
mkUntypedSplice EpAnn [AddEpAnn]
ann SpliceDecoration
hasParen LHsExpr GhcPs
e = forall id.
XUntypedSplice id
-> SpliceDecoration -> IdP id -> LHsExpr id -> HsSplice id
HsUntypedSplice EpAnn [AddEpAnn]
ann SpliceDecoration
hasParen RdrName
unqualSplice LHsExpr GhcPs
e

mkTypedSplice :: EpAnn [AddEpAnn] -> SpliceDecoration -> LHsExpr GhcPs -> HsSplice GhcPs
mkTypedSplice :: EpAnn [AddEpAnn]
-> SpliceDecoration -> LHsExpr GhcPs -> HsSplice GhcPs
mkTypedSplice EpAnn [AddEpAnn]
ann SpliceDecoration
hasParen LHsExpr GhcPs
e = forall id.
XTypedSplice id
-> SpliceDecoration -> IdP id -> LHsExpr id -> HsSplice id
HsTypedSplice EpAnn [AddEpAnn]
ann SpliceDecoration
hasParen RdrName
unqualSplice LHsExpr GhcPs
e

mkHsQuasiQuote :: RdrName -> SrcSpan -> FastString -> HsSplice GhcPs
mkHsQuasiQuote :: RdrName -> SrcSpan -> FastString -> HsSplice GhcPs
mkHsQuasiQuote RdrName
quoter SrcSpan
span FastString
quote
  = forall id.
XQuasiQuote id
-> IdP id -> IdP id -> SrcSpan -> FastString -> HsSplice id
HsQuasiQuote NoExtField
noExtField RdrName
unqualSplice RdrName
quoter SrcSpan
span FastString
quote

mkHsString :: String -> HsLit (GhcPass p)
mkHsString :: forall (p :: Pass). String -> HsLit (GhcPass p)
mkHsString String
s = forall x. XHsString x -> FastString -> HsLit x
HsString SourceText
NoSourceText (String -> FastString
mkFastString String
s)

mkHsStringPrimLit :: FastString -> HsLit (GhcPass p)
mkHsStringPrimLit :: forall (p :: Pass). FastString -> HsLit (GhcPass p)
mkHsStringPrimLit FastString
fs = forall x. XHsStringPrim x -> ByteString -> HsLit x
HsStringPrim SourceText
NoSourceText (FastString -> ByteString
bytesFS FastString
fs)

mkHsCharPrimLit :: Char -> HsLit (GhcPass p)
mkHsCharPrimLit :: forall (p :: Pass). Char -> HsLit (GhcPass p)
mkHsCharPrimLit Char
c = forall x. XHsChar x -> Char -> HsLit x
HsChar SourceText
NoSourceText Char
c


{-
************************************************************************
*                                                                      *
        Constructing syntax with no location info
*                                                                      *
************************************************************************
-}

nlHsVar :: IsSrcSpanAnn p a
        => IdP (GhcPass p) -> LHsExpr (GhcPass p)
nlHsVar :: forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LHsExpr (GhcPass p)
nlHsVar IdP (GhcPass p)
n = forall a an. a -> LocatedAn an a
noLocA (forall p. XVar p -> LIdP p -> HsExpr p
HsVar NoExtField
noExtField (forall a an. a -> LocatedAn an a
noLocA IdP (GhcPass p)
n))

nl_HsVar :: IsSrcSpanAnn p a
        => IdP (GhcPass p) -> HsExpr (GhcPass p)
nl_HsVar :: forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> HsExpr (GhcPass p)
nl_HsVar IdP (GhcPass p)
n = forall p. XVar p -> LIdP p -> HsExpr p
HsVar NoExtField
noExtField (forall a an. a -> LocatedAn an a
noLocA IdP (GhcPass p)
n)

-- | NB: Only for 'LHsExpr' 'Id'.
nlHsDataCon :: DataCon -> LHsExpr GhcTc
nlHsDataCon :: DataCon -> LHsExpr GhcTc
nlHsDataCon DataCon
con = forall a an. a -> LocatedAn an a
noLocA (forall p. XConLikeOut p -> ConLike -> HsExpr p
HsConLikeOut NoExtField
noExtField (DataCon -> ConLike
RealDataCon DataCon
con))

nlHsLit :: HsLit (GhcPass p) -> LHsExpr (GhcPass p)
nlHsLit :: forall (p :: Pass). HsLit (GhcPass p) -> LHsExpr (GhcPass p)
nlHsLit HsLit (GhcPass p)
n = forall a an. a -> LocatedAn an a
noLocA (forall p. XLitE p -> HsLit p -> HsExpr p
HsLit EpAnnCO
noComments HsLit (GhcPass p)
n)

nlHsIntLit :: Integer -> LHsExpr (GhcPass p)
nlHsIntLit :: forall (p :: Pass). Integer -> LHsExpr (GhcPass p)
nlHsIntLit Integer
n = forall a an. a -> LocatedAn an a
noLocA (forall p. XLitE p -> HsLit p -> HsExpr p
HsLit EpAnnCO
noComments (forall x. XHsInt x -> IntegralLit -> HsLit x
HsInt NoExtField
noExtField (forall a. Integral a => a -> IntegralLit
mkIntegralLit Integer
n)))

nlVarPat :: IsSrcSpanAnn p a
        => IdP (GhcPass p) -> LPat (GhcPass p)
nlVarPat :: forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LPat (GhcPass p)
nlVarPat IdP (GhcPass p)
n = forall a an. a -> LocatedAn an a
noLocA (forall p. XVarPat p -> LIdP p -> Pat p
VarPat NoExtField
noExtField (forall a an. a -> LocatedAn an a
noLocA IdP (GhcPass p)
n))

nlLitPat :: HsLit GhcPs -> LPat GhcPs
nlLitPat :: HsLit GhcPs -> LPat GhcPs
nlLitPat HsLit GhcPs
l = forall a an. a -> LocatedAn an a
noLocA (forall p. XLitPat p -> HsLit p -> Pat p
LitPat NoExtField
noExtField HsLit GhcPs
l)

nlHsApp :: IsPass id => LHsExpr (GhcPass id) -> LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
nlHsApp :: forall (id :: Pass).
IsPass id =>
LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
nlHsApp LHsExpr (GhcPass id)
f LHsExpr (GhcPass id)
x = forall a an. a -> LocatedAn an a
noLocA (forall p. XApp p -> LHsExpr p -> LHsExpr p -> HsExpr p
HsApp EpAnnCO
noComments LHsExpr (GhcPass id)
f (forall (id :: Pass).
IsPass id =>
LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
mkLHsPar LHsExpr (GhcPass id)
x))

nlHsSyntaxApps :: SyntaxExprTc -> [LHsExpr GhcTc]
               -> LHsExpr GhcTc
nlHsSyntaxApps :: SyntaxExprTc -> [LHsExpr GhcTc] -> LHsExpr GhcTc
nlHsSyntaxApps (SyntaxExprTc { syn_expr :: SyntaxExprTc -> HsExpr GhcTc
syn_expr      = HsExpr GhcTc
fun
                             , syn_arg_wraps :: SyntaxExprTc -> [HsWrapper]
syn_arg_wraps = [HsWrapper]
arg_wraps
                             , syn_res_wrap :: SyntaxExprTc -> HsWrapper
syn_res_wrap  = HsWrapper
res_wrap }) [LHsExpr GhcTc]
args
  = HsWrapper -> LHsExpr GhcTc -> LHsExpr GhcTc
mkLHsWrap HsWrapper
res_wrap (forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' forall (id :: Pass).
IsPass id =>
LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
nlHsApp (forall a an. a -> LocatedAn an a
noLocA HsExpr GhcTc
fun) (forall a b c. String -> (a -> b -> c) -> [a] -> [b] -> [c]
zipWithEqual String
"nlHsSyntaxApps"
                                                     HsWrapper -> LHsExpr GhcTc -> LHsExpr GhcTc
mkLHsWrap [HsWrapper]
arg_wraps [LHsExpr GhcTc]
args))
nlHsSyntaxApps SyntaxExprTc
NoSyntaxExprTc [LHsExpr GhcTc]
args = forall a. HasCallStack => String -> SDoc -> a
pprPanic String
"nlHsSyntaxApps" (forall a. Outputable a => a -> SDoc
ppr [LHsExpr GhcTc]
args)
  -- this function should never be called in scenarios where there is no
  -- syntax expr

nlHsApps :: IsSrcSpanAnn p a
         => IdP (GhcPass p) -> [LHsExpr (GhcPass p)] -> LHsExpr (GhcPass p)
nlHsApps :: forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> [LHsExpr (GhcPass p)] -> LHsExpr (GhcPass p)
nlHsApps IdP (GhcPass p)
f [LHsExpr (GhcPass p)]
xs = forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' forall (id :: Pass).
IsPass id =>
LHsExpr (GhcPass id)
-> LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
nlHsApp (forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LHsExpr (GhcPass p)
nlHsVar IdP (GhcPass p)
f) [LHsExpr (GhcPass p)]
xs

nlHsVarApps :: IsSrcSpanAnn p a
            => IdP (GhcPass p) -> [IdP (GhcPass p)] -> LHsExpr (GhcPass p)
nlHsVarApps :: forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> [IdP (GhcPass p)] -> LHsExpr (GhcPass p)
nlHsVarApps IdP (GhcPass p)
f [IdP (GhcPass p)]
xs = forall a an. a -> LocatedAn an a
noLocA (forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' forall {p} {an}.
(XApp p ~ EpAnnCO,
 XRec p (HsExpr p) ~ GenLocated (SrcAnn an) (HsExpr p)) =>
HsExpr p -> HsExpr p -> HsExpr p
mk (forall p. XVar p -> LIdP p -> HsExpr p
HsVar NoExtField
noExtField (forall a an. a -> LocatedAn an a
noLocA IdP (GhcPass p)
f))
                                         (forall a b. (a -> b) -> [a] -> [b]
map ((forall p. XVar p -> LIdP p -> HsExpr p
HsVar NoExtField
noExtField) forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a an. a -> LocatedAn an a
noLocA) [IdP (GhcPass p)]
xs))
                 where
                   mk :: HsExpr p -> HsExpr p -> HsExpr p
mk HsExpr p
f HsExpr p
a = forall p. XApp p -> LHsExpr p -> LHsExpr p -> HsExpr p
HsApp EpAnnCO
noComments (forall a an. a -> LocatedAn an a
noLocA HsExpr p
f) (forall a an. a -> LocatedAn an a
noLocA HsExpr p
a)

nlConVarPat :: RdrName -> [RdrName] -> LPat GhcPs
nlConVarPat :: RdrName -> [RdrName] -> LPat GhcPs
nlConVarPat RdrName
con [RdrName]
vars = RdrName -> [LPat GhcPs] -> LPat GhcPs
nlConPat RdrName
con (forall a b. (a -> b) -> [a] -> [b]
map forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LPat (GhcPass p)
nlVarPat [RdrName]
vars)

nlConVarPatName :: Name -> [Name] -> LPat GhcRn
nlConVarPatName :: Name -> [Name] -> LPat (GhcPass 'Renamed)
nlConVarPatName Name
con [Name]
vars = Name -> [LPat (GhcPass 'Renamed)] -> LPat (GhcPass 'Renamed)
nlConPatName Name
con (forall a b. (a -> b) -> [a] -> [b]
map forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LPat (GhcPass p)
nlVarPat [Name]
vars)

nlInfixConPat :: RdrName -> LPat GhcPs -> LPat GhcPs -> LPat GhcPs
nlInfixConPat :: RdrName -> LPat GhcPs -> LPat GhcPs -> LPat GhcPs
nlInfixConPat RdrName
con LPat GhcPs
l LPat GhcPs
r = forall a an. a -> LocatedAn an a
noLocA forall a b. (a -> b) -> a -> b
$ ConPat
  { pat_con :: XRec GhcPs (ConLikeP GhcPs)
pat_con = forall a an. a -> LocatedAn an a
noLocA RdrName
con
  , pat_args :: HsConPatDetails GhcPs
pat_args = forall tyarg arg rec. arg -> arg -> HsConDetails tyarg arg rec
InfixCon (forall (p :: Pass).
IsPass p =>
PprPrec -> LPat (GhcPass p) -> LPat (GhcPass p)
parenthesizePat PprPrec
opPrec LPat GhcPs
l)
                        (forall (p :: Pass).
IsPass p =>
PprPrec -> LPat (GhcPass p) -> LPat (GhcPass p)
parenthesizePat PprPrec
opPrec LPat GhcPs
r)
  , pat_con_ext :: XConPat GhcPs
pat_con_ext = forall a. EpAnn a
noAnn
  }

nlConPat :: RdrName -> [LPat GhcPs] -> LPat GhcPs
nlConPat :: RdrName -> [LPat GhcPs] -> LPat GhcPs
nlConPat RdrName
con [LPat GhcPs]
pats = forall a an. a -> LocatedAn an a
noLocA forall a b. (a -> b) -> a -> b
$ ConPat
  { pat_con_ext :: XConPat GhcPs
pat_con_ext = forall a. EpAnn a
noAnn
  , pat_con :: XRec GhcPs (ConLikeP GhcPs)
pat_con = forall a an. a -> LocatedAn an a
noLocA RdrName
con
  , pat_args :: HsConPatDetails GhcPs
pat_args = forall tyarg arg rec.
[tyarg] -> [arg] -> HsConDetails tyarg arg rec
PrefixCon [] (forall a b. (a -> b) -> [a] -> [b]
map (forall (p :: Pass).
IsPass p =>
PprPrec -> LPat (GhcPass p) -> LPat (GhcPass p)
parenthesizePat PprPrec
appPrec) [LPat GhcPs]
pats)
  }

nlConPatName :: Name -> [LPat GhcRn] -> LPat GhcRn
nlConPatName :: Name -> [LPat (GhcPass 'Renamed)] -> LPat (GhcPass 'Renamed)
nlConPatName Name
con [LPat (GhcPass 'Renamed)]
pats = forall a an. a -> LocatedAn an a
noLocA forall a b. (a -> b) -> a -> b
$ ConPat
  { pat_con_ext :: XConPat (GhcPass 'Renamed)
pat_con_ext = NoExtField
noExtField
  , pat_con :: XRec (GhcPass 'Renamed) (ConLikeP (GhcPass 'Renamed))
pat_con = forall a an. a -> LocatedAn an a
noLocA Name
con
  , pat_args :: HsConPatDetails (GhcPass 'Renamed)
pat_args = forall tyarg arg rec.
[tyarg] -> [arg] -> HsConDetails tyarg arg rec
PrefixCon [] (forall a b. (a -> b) -> [a] -> [b]
map (forall (p :: Pass).
IsPass p =>
PprPrec -> LPat (GhcPass p) -> LPat (GhcPass p)
parenthesizePat PprPrec
appPrec) [LPat (GhcPass 'Renamed)]
pats)
  }

nlNullaryConPat :: RdrName -> LPat GhcPs
nlNullaryConPat :: RdrName -> LPat GhcPs
nlNullaryConPat RdrName
con = forall a an. a -> LocatedAn an a
noLocA forall a b. (a -> b) -> a -> b
$ ConPat
  { pat_con_ext :: XConPat GhcPs
pat_con_ext = forall a. EpAnn a
noAnn
  , pat_con :: XRec GhcPs (ConLikeP GhcPs)
pat_con = forall a an. a -> LocatedAn an a
noLocA RdrName
con
  , pat_args :: HsConPatDetails GhcPs
pat_args = forall tyarg arg rec.
[tyarg] -> [arg] -> HsConDetails tyarg arg rec
PrefixCon [] []
  }

nlWildConPat :: DataCon -> LPat GhcPs
nlWildConPat :: DataCon -> LPat GhcPs
nlWildConPat DataCon
con = forall a an. a -> LocatedAn an a
noLocA forall a b. (a -> b) -> a -> b
$ ConPat
  { pat_con_ext :: XConPat GhcPs
pat_con_ext = forall a. EpAnn a
noAnn
  , pat_con :: XRec GhcPs (ConLikeP GhcPs)
pat_con = forall a an. a -> LocatedAn an a
noLocA forall a b. (a -> b) -> a -> b
$ forall thing. NamedThing thing => thing -> RdrName
getRdrName DataCon
con
  , pat_args :: HsConPatDetails GhcPs
pat_args = forall tyarg arg rec.
[tyarg] -> [arg] -> HsConDetails tyarg arg rec
PrefixCon [] forall a b. (a -> b) -> a -> b
$
     forall a. Int -> a -> [a]
replicate (DataCon -> Int
dataConSourceArity DataCon
con)
               LPat GhcPs
nlWildPat
  }

-- | Wildcard pattern - after parsing
nlWildPat :: LPat GhcPs
nlWildPat :: LPat GhcPs
nlWildPat  = forall a an. a -> LocatedAn an a
noLocA (forall p. XWildPat p -> Pat p
WildPat NoExtField
noExtField )

-- | Wildcard pattern - after renaming
nlWildPatName :: LPat GhcRn
nlWildPatName :: LPat (GhcPass 'Renamed)
nlWildPatName  = forall a an. a -> LocatedAn an a
noLocA (forall p. XWildPat p -> Pat p
WildPat NoExtField
noExtField )

nlHsDo :: HsStmtContext GhcRn -> [LStmt GhcPs (LHsExpr GhcPs)]
       -> LHsExpr GhcPs
nlHsDo :: HsStmtContext (GhcPass 'Renamed)
-> [ExprLStmt GhcPs] -> LHsExpr GhcPs
nlHsDo HsStmtContext (GhcPass 'Renamed)
ctxt [ExprLStmt GhcPs]
stmts = forall a an. a -> LocatedAn an a
noLocA (HsStmtContext (GhcPass 'Renamed)
-> LocatedL [ExprLStmt GhcPs] -> HsExpr GhcPs
mkHsDo HsStmtContext (GhcPass 'Renamed)
ctxt (forall a an. a -> LocatedAn an a
noLocA [ExprLStmt GhcPs]
stmts))

nlHsOpApp :: LHsExpr GhcPs -> IdP GhcPs -> LHsExpr GhcPs -> LHsExpr GhcPs
nlHsOpApp :: LHsExpr GhcPs -> IdP GhcPs -> LHsExpr GhcPs -> LHsExpr GhcPs
nlHsOpApp LHsExpr GhcPs
e1 IdP GhcPs
op LHsExpr GhcPs
e2 = forall a an. a -> LocatedAn an a
noLocA (LHsExpr GhcPs -> IdP GhcPs -> LHsExpr GhcPs -> HsExpr GhcPs
mkHsOpApp LHsExpr GhcPs
e1 IdP GhcPs
op LHsExpr GhcPs
e2)

nlHsLam  :: LMatch GhcPs (LHsExpr GhcPs) -> LHsExpr GhcPs
nlHsPar  :: LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
nlHsCase :: LHsExpr GhcPs -> [LMatch GhcPs (LHsExpr GhcPs)]
         -> LHsExpr GhcPs
nlList   :: [LHsExpr GhcPs] -> LHsExpr GhcPs

-- AZ:Is this used?
nlHsLam :: LMatch GhcPs (LHsExpr GhcPs) -> LHsExpr GhcPs
nlHsLam LMatch GhcPs (LHsExpr GhcPs)
match = forall a an. a -> LocatedAn an a
noLocA (forall p. XLam p -> MatchGroup p (LHsExpr p) -> HsExpr p
HsLam NoExtField
noExtField (forall (p :: Pass) (body :: * -> *).
AnnoBody p body =>
Origin
-> LocatedL
     [LocatedA (Match (GhcPass p) (LocatedA (body (GhcPass p))))]
-> MatchGroup (GhcPass p) (LocatedA (body (GhcPass p)))
mkMatchGroup Origin
Generated (forall a an. a -> LocatedAn an a
noLocA [LMatch GhcPs (LHsExpr GhcPs)
match])))
nlHsPar :: forall (id :: Pass). LHsExpr (GhcPass id) -> LHsExpr (GhcPass id)
nlHsPar LHsExpr (GhcPass id)
e     = forall a an. a -> LocatedAn an a
noLocA (forall p. XPar p -> LHsExpr p -> HsExpr p
HsPar forall a. EpAnn a
noAnn LHsExpr (GhcPass id)
e)

-- nlHsIf should generate if-expressions which are NOT subject to
-- RebindableSyntax, so the first field of HsIf is False. (#12080)
nlHsIf :: LHsExpr GhcPs -> LHsExpr GhcPs -> LHsExpr GhcPs -> LHsExpr GhcPs
nlHsIf :: LHsExpr GhcPs -> LHsExpr GhcPs -> LHsExpr GhcPs -> LHsExpr GhcPs
nlHsIf LHsExpr GhcPs
cond LHsExpr GhcPs
true LHsExpr GhcPs
false = forall a an. a -> LocatedAn an a
noLocA (forall p. XIf p -> LHsExpr p -> LHsExpr p -> LHsExpr p -> HsExpr p
HsIf forall a. EpAnn a
noAnn LHsExpr GhcPs
cond LHsExpr GhcPs
true LHsExpr GhcPs
false)

nlHsCase :: LHsExpr GhcPs -> [LMatch GhcPs (LHsExpr GhcPs)] -> LHsExpr GhcPs
nlHsCase LHsExpr GhcPs
expr [LMatch GhcPs (LHsExpr GhcPs)]
matches
  = forall a an. a -> LocatedAn an a
noLocA (forall p.
XCase p -> LHsExpr p -> MatchGroup p (LHsExpr p) -> HsExpr p
HsCase forall a. EpAnn a
noAnn LHsExpr GhcPs
expr (forall (p :: Pass) (body :: * -> *).
AnnoBody p body =>
Origin
-> LocatedL
     [LocatedA (Match (GhcPass p) (LocatedA (body (GhcPass p))))]
-> MatchGroup (GhcPass p) (LocatedA (body (GhcPass p)))
mkMatchGroup Origin
Generated (forall a an. a -> LocatedAn an a
noLocA [LMatch GhcPs (LHsExpr GhcPs)]
matches)))
nlList :: [LHsExpr GhcPs] -> LHsExpr GhcPs
nlList [LHsExpr GhcPs]
exprs          = forall a an. a -> LocatedAn an a
noLocA (forall p. XExplicitList p -> [LHsExpr p] -> HsExpr p
ExplicitList forall a. EpAnn a
noAnn [LHsExpr GhcPs]
exprs)

nlHsAppTy :: LHsType (GhcPass p) -> LHsType (GhcPass p) -> LHsType (GhcPass p)
nlHsTyVar :: IsSrcSpanAnn p a
          => IdP (GhcPass p)                            -> LHsType (GhcPass p)
nlHsFunTy :: LHsType (GhcPass p) -> LHsType (GhcPass p) -> LHsType (GhcPass p)
nlHsParTy :: LHsType (GhcPass p)                        -> LHsType (GhcPass p)

nlHsAppTy :: forall (p :: Pass).
LHsType (GhcPass p) -> LHsType (GhcPass p) -> LHsType (GhcPass p)
nlHsAppTy LHsType (GhcPass p)
f LHsType (GhcPass p)
t = forall a an. a -> LocatedAn an a
noLocA (forall pass.
XAppTy pass -> LHsType pass -> LHsType pass -> HsType pass
HsAppTy NoExtField
noExtField LHsType (GhcPass p)
f (forall (p :: Pass).
PprPrec -> LHsType (GhcPass p) -> LHsType (GhcPass p)
parenthesizeHsType PprPrec
appPrec LHsType (GhcPass p)
t))
nlHsTyVar :: forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LHsType (GhcPass p)
nlHsTyVar IdP (GhcPass p)
x   = forall a an. a -> LocatedAn an a
noLocA (forall pass.
XTyVar pass -> PromotionFlag -> LIdP pass -> HsType pass
HsTyVar forall a. EpAnn a
noAnn PromotionFlag
NotPromoted (forall a an. a -> LocatedAn an a
noLocA IdP (GhcPass p)
x))
nlHsFunTy :: forall (p :: Pass).
LHsType (GhcPass p) -> LHsType (GhcPass p) -> LHsType (GhcPass p)
nlHsFunTy LHsType (GhcPass p)
a LHsType (GhcPass p)
b = forall a an. a -> LocatedAn an a
noLocA (forall pass.
XFunTy pass
-> HsArrow pass -> LHsType pass -> LHsType pass -> HsType pass
HsFunTy forall a. EpAnn a
noAnn (forall pass. IsUnicodeSyntax -> HsArrow pass
HsUnrestrictedArrow IsUnicodeSyntax
NormalSyntax) (forall (p :: Pass).
PprPrec -> LHsType (GhcPass p) -> LHsType (GhcPass p)
parenthesizeHsType PprPrec
funPrec LHsType (GhcPass p)
a) LHsType (GhcPass p)
b)
nlHsParTy :: forall (p :: Pass). LHsType (GhcPass p) -> LHsType (GhcPass p)
nlHsParTy LHsType (GhcPass p)
t   = forall a an. a -> LocatedAn an a
noLocA (forall pass. XParTy pass -> LHsType pass -> HsType pass
HsParTy forall a. EpAnn a
noAnn LHsType (GhcPass p)
t)

nlHsTyConApp :: IsSrcSpanAnn p a
             => LexicalFixity -> IdP (GhcPass p)
             -> [LHsTypeArg (GhcPass p)] -> LHsType (GhcPass p)
nlHsTyConApp :: forall (p :: Pass) a.
IsSrcSpanAnn p a =>
LexicalFixity
-> IdP (GhcPass p)
-> [LHsTypeArg (GhcPass p)]
-> LHsType (GhcPass p)
nlHsTyConApp LexicalFixity
fixity IdP (GhcPass p)
tycon [LHsTypeArg (GhcPass p)]
tys
  | LexicalFixity
Infix <- LexicalFixity
fixity
  , HsValArg LHsType (GhcPass p)
ty1 : HsValArg LHsType (GhcPass p)
ty2 : [LHsTypeArg (GhcPass p)]
rest <- [LHsTypeArg (GhcPass p)]
tys
  = forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' forall (p :: Pass).
LHsType (GhcPass p)
-> LHsTypeArg (GhcPass p) -> LHsType (GhcPass p)
mk_app (forall a an. a -> LocatedAn an a
noLocA forall a b. (a -> b) -> a -> b
$ forall pass.
XOpTy pass
-> LHsType pass -> LIdP pass -> LHsType pass -> HsType pass
HsOpTy NoExtField
noExtField LHsType (GhcPass p)
ty1 (forall a an. a -> LocatedAn an a
noLocA IdP (GhcPass p)
tycon) LHsType (GhcPass p)
ty2) [LHsTypeArg (GhcPass p)]
rest
  | Bool
otherwise
  = forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl' forall (p :: Pass).
LHsType (GhcPass p)
-> LHsTypeArg (GhcPass p) -> LHsType (GhcPass p)
mk_app (forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LHsType (GhcPass p)
nlHsTyVar IdP (GhcPass p)
tycon) [LHsTypeArg (GhcPass p)]
tys
  where
    mk_app :: LHsType (GhcPass p) -> LHsTypeArg (GhcPass p) -> LHsType (GhcPass p)
    mk_app :: forall (p :: Pass).
LHsType (GhcPass p)
-> LHsTypeArg (GhcPass p) -> LHsType (GhcPass p)
mk_app fun :: LHsType (GhcPass p)
fun@(L SrcSpanAnnA
_ (HsOpTy {})) LHsTypeArg (GhcPass p)
arg = forall (p :: Pass).
LHsType (GhcPass p)
-> LHsTypeArg (GhcPass p) -> LHsType (GhcPass p)
mk_app (forall a an. a -> LocatedAn an a
noLocA forall a b. (a -> b) -> a -> b
$ forall pass. XParTy pass -> LHsType pass -> HsType pass
HsParTy forall a. EpAnn a
noAnn LHsType (GhcPass p)
fun) LHsTypeArg (GhcPass p)
arg
      -- parenthesize things like `(A + B) C`
    mk_app LHsType (GhcPass p)
fun (HsValArg LHsType (GhcPass p)
ty) = forall a an. a -> LocatedAn an a
noLocA (forall pass.
XAppTy pass -> LHsType pass -> LHsType pass -> HsType pass
HsAppTy NoExtField
noExtField LHsType (GhcPass p)
fun (forall (p :: Pass).
PprPrec -> LHsType (GhcPass p) -> LHsType (GhcPass p)
parenthesizeHsType PprPrec
appPrec LHsType (GhcPass p)
ty))
    mk_app LHsType (GhcPass p)
fun (HsTypeArg SrcSpan
_ LHsType (GhcPass p)
ki) = forall a an. a -> LocatedAn an a
noLocA (forall pass.
XAppKindTy pass -> LHsType pass -> LHsType pass -> HsType pass
HsAppKindTy SrcSpan
noSrcSpan LHsType (GhcPass p)
fun (forall (p :: Pass).
PprPrec -> LHsType (GhcPass p) -> LHsType (GhcPass p)
parenthesizeHsType PprPrec
appPrec LHsType (GhcPass p)
ki))
    mk_app LHsType (GhcPass p)
fun (HsArgPar SrcSpan
_) = forall a an. a -> LocatedAn an a
noLocA (forall pass. XParTy pass -> LHsType pass -> HsType pass
HsParTy forall a. EpAnn a
noAnn LHsType (GhcPass p)
fun)

nlHsAppKindTy ::
  LHsType (GhcPass p) -> LHsKind (GhcPass p) -> LHsType (GhcPass p)
nlHsAppKindTy :: forall (p :: Pass).
LHsType (GhcPass p) -> LHsType (GhcPass p) -> LHsType (GhcPass p)
nlHsAppKindTy LHsType (GhcPass p)
f LHsType (GhcPass p)
k
  = forall a an. a -> LocatedAn an a
noLocA (forall pass.
XAppKindTy pass -> LHsType pass -> LHsType pass -> HsType pass
HsAppKindTy SrcSpan
noSrcSpan LHsType (GhcPass p)
f (forall (p :: Pass).
PprPrec -> LHsType (GhcPass p) -> LHsType (GhcPass p)
parenthesizeHsType PprPrec
appPrec LHsType (GhcPass p)
k))

{-
Tuples.  All these functions are *pre-typechecker* because they lack
types on the tuple.
-}

mkLHsTupleExpr :: [LHsExpr (GhcPass p)] -> XExplicitTuple (GhcPass p)
               -> LHsExpr (GhcPass p)
-- Makes a pre-typechecker boxed tuple, deals with 1 case
mkLHsTupleExpr :: forall (p :: Pass).
[LHsExpr (GhcPass p)]
-> XExplicitTuple (GhcPass p) -> LHsExpr (GhcPass p)
mkLHsTupleExpr [LHsExpr (GhcPass p)
e] XExplicitTuple (GhcPass p)
_ = LHsExpr (GhcPass p)
e
mkLHsTupleExpr [LHsExpr (GhcPass p)]
es XExplicitTuple (GhcPass p)
ext
  = forall a an. a -> LocatedAn an a
noLocA forall a b. (a -> b) -> a -> b
$ forall p. XExplicitTuple p -> [HsTupArg p] -> Boxity -> HsExpr p
ExplicitTuple XExplicitTuple (GhcPass p)
ext (forall a b. (a -> b) -> [a] -> [b]
map (forall id. XPresent id -> LHsExpr id -> HsTupArg id
Present forall a. EpAnn a
noAnn) [LHsExpr (GhcPass p)]
es) Boxity
Boxed

mkLHsVarTuple :: IsSrcSpanAnn p a
               => [IdP (GhcPass p)]  -> XExplicitTuple (GhcPass p)
              -> LHsExpr (GhcPass p)
mkLHsVarTuple :: forall (p :: Pass) a.
IsSrcSpanAnn p a =>
[IdP (GhcPass p)]
-> XExplicitTuple (GhcPass p) -> LHsExpr (GhcPass p)
mkLHsVarTuple [IdP (GhcPass p)]
ids XExplicitTuple (GhcPass p)
ext = forall (p :: Pass).
[LHsExpr (GhcPass p)]
-> XExplicitTuple (GhcPass p) -> LHsExpr (GhcPass p)
mkLHsTupleExpr (forall a b. (a -> b) -> [a] -> [b]
map forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LHsExpr (GhcPass p)
nlHsVar [IdP (GhcPass p)]
ids) XExplicitTuple (GhcPass p)
ext

nlTuplePat :: [LPat GhcPs] -> Boxity -> LPat GhcPs
nlTuplePat :: [LPat GhcPs] -> Boxity -> LPat GhcPs
nlTuplePat [LPat GhcPs]
pats Boxity
box = forall a an. a -> LocatedAn an a
noLocA (forall p. XTuplePat p -> [LPat p] -> Boxity -> Pat p
TuplePat forall a. EpAnn a
noAnn [LPat GhcPs]
pats Boxity
box)

missingTupArg :: EpAnn EpaLocation -> HsTupArg GhcPs
missingTupArg :: EpAnn EpaLocation -> HsTupArg GhcPs
missingTupArg EpAnn EpaLocation
ann = forall id. XMissing id -> HsTupArg id
Missing EpAnn EpaLocation
ann

mkLHsPatTup :: [LPat GhcRn] -> LPat GhcRn
mkLHsPatTup :: [LPat (GhcPass 'Renamed)] -> LPat (GhcPass 'Renamed)
mkLHsPatTup []     = forall a an. a -> LocatedAn an a
noLocA forall a b. (a -> b) -> a -> b
$ forall p. XTuplePat p -> [LPat p] -> Boxity -> Pat p
TuplePat NoExtField
noExtField [] Boxity
Boxed
mkLHsPatTup [LPat (GhcPass 'Renamed)
lpat] = LPat (GhcPass 'Renamed)
lpat
mkLHsPatTup [LPat (GhcPass 'Renamed)]
lpats  = forall l e. l -> e -> GenLocated l e
L (forall l e. GenLocated l e -> l
getLoc (forall a. [a] -> a
head [LPat (GhcPass 'Renamed)]
lpats)) forall a b. (a -> b) -> a -> b
$ forall p. XTuplePat p -> [LPat p] -> Boxity -> Pat p
TuplePat NoExtField
noExtField [LPat (GhcPass 'Renamed)]
lpats Boxity
Boxed

-- | The Big equivalents for the source tuple expressions
mkBigLHsVarTup :: IsSrcSpanAnn p a
               => [IdP (GhcPass p)] -> XExplicitTuple (GhcPass p)
               -> LHsExpr (GhcPass p)
mkBigLHsVarTup :: forall (p :: Pass) a.
IsSrcSpanAnn p a =>
[IdP (GhcPass p)]
-> XExplicitTuple (GhcPass p) -> LHsExpr (GhcPass p)
mkBigLHsVarTup [IdP (GhcPass p)]
ids XExplicitTuple (GhcPass p)
anns = forall (p :: Pass).
[LHsExpr (GhcPass p)]
-> XExplicitTuple (GhcPass p) -> LHsExpr (GhcPass p)
mkBigLHsTup (forall a b. (a -> b) -> [a] -> [b]
map forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LHsExpr (GhcPass p)
nlHsVar [IdP (GhcPass p)]
ids) XExplicitTuple (GhcPass p)
anns

mkBigLHsTup :: [LHsExpr (GhcPass id)] -> XExplicitTuple (GhcPass id)
            -> LHsExpr (GhcPass id)
mkBigLHsTup :: forall (p :: Pass).
[LHsExpr (GhcPass p)]
-> XExplicitTuple (GhcPass p) -> LHsExpr (GhcPass p)
mkBigLHsTup [LHsExpr (GhcPass id)]
es XExplicitTuple (GhcPass id)
anns = forall a. ([a] -> a) -> [a] -> a
mkChunkified (\[GenLocated SrcSpanAnnA (HsExpr (GhcPass id))]
e -> forall (p :: Pass).
[LHsExpr (GhcPass p)]
-> XExplicitTuple (GhcPass p) -> LHsExpr (GhcPass p)
mkLHsTupleExpr [GenLocated SrcSpanAnnA (HsExpr (GhcPass id))]
e XExplicitTuple (GhcPass id)
anns) [LHsExpr (GhcPass id)]
es

-- | The Big equivalents for the source tuple patterns
mkBigLHsVarPatTup :: [IdP GhcRn] -> LPat GhcRn
mkBigLHsVarPatTup :: [IdP (GhcPass 'Renamed)] -> LPat (GhcPass 'Renamed)
mkBigLHsVarPatTup [IdP (GhcPass 'Renamed)]
bs = [LPat (GhcPass 'Renamed)] -> LPat (GhcPass 'Renamed)
mkBigLHsPatTup (forall a b. (a -> b) -> [a] -> [b]
map forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LPat (GhcPass p)
nlVarPat [IdP (GhcPass 'Renamed)]
bs)

mkBigLHsPatTup :: [LPat GhcRn] -> LPat GhcRn
mkBigLHsPatTup :: [LPat (GhcPass 'Renamed)] -> LPat (GhcPass 'Renamed)
mkBigLHsPatTup = forall a. ([a] -> a) -> [a] -> a
mkChunkified [LPat (GhcPass 'Renamed)] -> LPat (GhcPass 'Renamed)
mkLHsPatTup

-- $big_tuples
-- #big_tuples#
--
-- GHCs built in tuples can only go up to 'mAX_TUPLE_SIZE' in arity, but
-- we might conceivably want to build such a massive tuple as part of the
-- output of a desugaring stage (notably that for list comprehensions).
--
-- We call tuples above this size \"big tuples\", and emulate them by
-- creating and pattern matching on >nested< tuples that are expressible
-- by GHC.
--
-- Nesting policy: it's better to have a 2-tuple of 10-tuples (3 objects)
-- than a 10-tuple of 2-tuples (11 objects), so we want the leaves of any
-- construction to be big.
--
-- If you just use the 'mkBigCoreTup', 'mkBigCoreVarTupTy', 'mkTupleSelector'
-- and 'mkTupleCase' functions to do all your work with tuples you should be
-- fine, and not have to worry about the arity limitation at all.

-- | Lifts a \"small\" constructor into a \"big\" constructor by recursive decomposition
mkChunkified :: ([a] -> a)      -- ^ \"Small\" constructor function, of maximum input arity 'mAX_TUPLE_SIZE'
             -> [a]             -- ^ Possible \"big\" list of things to construct from
             -> a               -- ^ Constructed thing made possible by recursive decomposition
mkChunkified :: forall a. ([a] -> a) -> [a] -> a
mkChunkified [a] -> a
small_tuple [a]
as = [[a]] -> a
mk_big_tuple (forall a. [a] -> [[a]]
chunkify [a]
as)
  where
        -- Each sub-list is short enough to fit in a tuple
    mk_big_tuple :: [[a]] -> a
mk_big_tuple [[a]
as] = [a] -> a
small_tuple [a]
as
    mk_big_tuple [[a]]
as_s = [[a]] -> a
mk_big_tuple (forall a. [a] -> [[a]]
chunkify (forall a b. (a -> b) -> [a] -> [b]
map [a] -> a
small_tuple [[a]]
as_s))

chunkify :: [a] -> [[a]]
-- ^ Split a list into lists that are small enough to have a corresponding
-- tuple arity. The sub-lists of the result all have length <= 'mAX_TUPLE_SIZE'
-- But there may be more than 'mAX_TUPLE_SIZE' sub-lists
chunkify :: forall a. [a] -> [[a]]
chunkify [a]
xs
  | Int
n_xs forall a. Ord a => a -> a -> Bool
<= Int
mAX_TUPLE_SIZE = [[a]
xs]
  | Bool
otherwise              = forall a. [a] -> [[a]]
split [a]
xs
  where
    n_xs :: Int
n_xs     = forall (t :: * -> *) a. Foldable t => t a -> Int
length [a]
xs
    split :: [a] -> [[a]]
split [] = []
    split [a]
xs = forall a. Int -> [a] -> [a]
take Int
mAX_TUPLE_SIZE [a]
xs forall a. a -> [a] -> [a]
: [a] -> [[a]]
split (forall a. Int -> [a] -> [a]
drop Int
mAX_TUPLE_SIZE [a]
xs)

{-
************************************************************************
*                                                                      *
        LHsSigType and LHsSigWcType
*                                                                      *
********************************************************************* -}

-- | Convert an 'LHsType' to an 'LHsSigType'.
hsTypeToHsSigType :: LHsType GhcPs -> LHsSigType GhcPs
hsTypeToHsSigType :: LHsType GhcPs -> LHsSigType GhcPs
hsTypeToHsSigType lty :: LHsType GhcPs
lty@(L SrcSpanAnnA
loc HsType GhcPs
ty) = forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc forall a b. (a -> b) -> a -> b
$ case HsType GhcPs
ty of
  HsForAllTy { hst_tele :: forall pass. HsType pass -> HsForAllTelescope pass
hst_tele = HsForAllInvis { hsf_xinvis :: forall pass. HsForAllTelescope pass -> XHsForAllInvis pass
hsf_xinvis = XHsForAllInvis GhcPs
an
                                        , hsf_invis_bndrs :: forall pass.
HsForAllTelescope pass -> [LHsTyVarBndr Specificity pass]
hsf_invis_bndrs = [LHsTyVarBndr Specificity GhcPs]
bndrs }
             , hst_body :: forall pass. HsType pass -> LHsType pass
hst_body = LHsType GhcPs
body }
    -> EpAnnForallTy
-> [LHsTyVarBndr Specificity GhcPs]
-> LHsType GhcPs
-> HsSigType GhcPs
mkHsExplicitSigType XHsForAllInvis GhcPs
an [LHsTyVarBndr Specificity GhcPs]
bndrs LHsType GhcPs
body
  HsType GhcPs
_ -> LHsType GhcPs -> HsSigType GhcPs
mkHsImplicitSigType LHsType GhcPs
lty

-- | Convert an 'LHsType' to an 'LHsSigWcType'.
hsTypeToHsSigWcType :: LHsType GhcPs -> LHsSigWcType GhcPs
hsTypeToHsSigWcType :: LHsType GhcPs -> LHsSigWcType GhcPs
hsTypeToHsSigWcType = forall thing. thing -> HsWildCardBndrs GhcPs thing
mkHsWildCardBndrs forall b c a. (b -> c) -> (a -> b) -> a -> c
. LHsType GhcPs -> LHsSigType GhcPs
hsTypeToHsSigType

mkHsSigEnv :: forall a. (LSig GhcRn -> Maybe ([LocatedN Name], a))
                     -> [LSig GhcRn]
                     -> NameEnv a
mkHsSigEnv :: forall a.
(LSig (GhcPass 'Renamed)
 -> Maybe ([GenLocated SrcSpanAnnN Name], a))
-> [LSig (GhcPass 'Renamed)] -> NameEnv a
mkHsSigEnv LSig (GhcPass 'Renamed) -> Maybe ([GenLocated SrcSpanAnnN Name], a)
get_info [LSig (GhcPass 'Renamed)]
sigs
  = forall a. [(Name, a)] -> NameEnv a
mkNameEnv          ([LSig (GhcPass 'Renamed)] -> [(Name, a)]
mk_pairs [GenLocated SrcSpanAnnA (Sig (GhcPass 'Renamed))]
ordinary_sigs)
   forall a. NameEnv a -> [(Name, a)] -> NameEnv a
`extendNameEnvList` ([LSig (GhcPass 'Renamed)] -> [(Name, a)]
mk_pairs [GenLocated SrcSpanAnnA (Sig (GhcPass 'Renamed))]
gen_dm_sigs)
   -- The subtlety is this: in a class decl with a
   -- default-method signature as well as a method signature
   -- we want the latter to win (#12533)
   --    class C x where
   --       op :: forall a . x a -> x a
   --       default op :: forall b . x b -> x b
   --       op x = ...(e :: b -> b)...
   -- The scoped type variables of the 'default op', namely 'b',
   -- scope over the code for op.   The 'forall a' does not!
   -- This applies both in the renamer and typechecker, both
   -- of which use this function
  where
    ([GenLocated SrcSpanAnnA (Sig (GhcPass 'Renamed))]
gen_dm_sigs, [GenLocated SrcSpanAnnA (Sig (GhcPass 'Renamed))]
ordinary_sigs) = forall a. (a -> Bool) -> [a] -> ([a], [a])
partition forall {l} {pass}. GenLocated l (Sig pass) -> Bool
is_gen_dm_sig [LSig (GhcPass 'Renamed)]
sigs
    is_gen_dm_sig :: GenLocated l (Sig pass) -> Bool
is_gen_dm_sig (L l
_ (ClassOpSig XClassOpSig pass
_ Bool
True [LIdP pass]
_ LHsSigType pass
_)) = Bool
True
    is_gen_dm_sig GenLocated l (Sig pass)
_                             = Bool
False

    mk_pairs :: [LSig GhcRn] -> [(Name, a)]
    mk_pairs :: [LSig (GhcPass 'Renamed)] -> [(Name, a)]
mk_pairs [LSig (GhcPass 'Renamed)]
sigs = [ (Name
n,a
a) | Just ([GenLocated SrcSpanAnnN Name]
ns,a
a) <- forall a b. (a -> b) -> [a] -> [b]
map LSig (GhcPass 'Renamed) -> Maybe ([GenLocated SrcSpanAnnN Name], a)
get_info [LSig (GhcPass 'Renamed)]
sigs
                            , L SrcSpanAnnN
_ Name
n <- [GenLocated SrcSpanAnnN Name]
ns ]

mkClassOpSigs :: [LSig GhcPs] -> [LSig GhcPs]
-- ^ Convert 'TypeSig' to 'ClassOpSig'.
-- The former is what is parsed, but the latter is
-- what we need in class/instance declarations
mkClassOpSigs :: [LSig GhcPs] -> [LSig GhcPs]
mkClassOpSigs [LSig GhcPs]
sigs
  = forall a b. (a -> b) -> [a] -> [b]
map forall {pass} {l}.
(XTypeSig pass ~ XClassOpSig pass) =>
GenLocated l (Sig pass) -> GenLocated l (Sig pass)
fiddle [LSig GhcPs]
sigs
  where
    fiddle :: GenLocated l (Sig pass) -> GenLocated l (Sig pass)
fiddle (L l
loc (TypeSig XTypeSig pass
anns [LIdP pass]
nms LHsSigWcType pass
ty))
      = forall l e. l -> e -> GenLocated l e
L l
loc (forall pass.
XClassOpSig pass
-> Bool -> [LIdP pass] -> LHsSigType pass -> Sig pass
ClassOpSig XTypeSig pass
anns Bool
False [LIdP pass]
nms (forall pass. LHsSigWcType pass -> LHsSigType pass
dropWildCards LHsSigWcType pass
ty))
    fiddle GenLocated l (Sig pass)
sig = GenLocated l (Sig pass)
sig

{- *********************************************************************
*                                                                      *
    --------- HsWrappers: type args, dict args, casts ---------
*                                                                      *
********************************************************************* -}

mkLHsWrap :: HsWrapper -> LHsExpr GhcTc -> LHsExpr GhcTc
mkLHsWrap :: HsWrapper -> LHsExpr GhcTc -> LHsExpr GhcTc
mkLHsWrap HsWrapper
co_fn (L SrcSpanAnnA
loc HsExpr GhcTc
e) = forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc (HsWrapper -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrap HsWrapper
co_fn HsExpr GhcTc
e)

-- | Avoid @'HsWrap' co1 ('HsWrap' co2 _)@ and @'HsWrap' co1 ('HsPar' _ _)@
-- See Note [Detecting forced eta expansion] in "GHC.HsToCore.Expr"
mkHsWrap :: HsWrapper -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrap :: HsWrapper -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrap HsWrapper
co_fn HsExpr GhcTc
e | HsWrapper -> Bool
isIdHsWrapper HsWrapper
co_fn   = HsExpr GhcTc
e
mkHsWrap HsWrapper
co_fn (XExpr (WrapExpr (HsWrap HsWrapper
co_fn' HsExpr GhcTc
e))) = HsWrapper -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrap (HsWrapper
co_fn HsWrapper -> HsWrapper -> HsWrapper
<.> HsWrapper
co_fn') HsExpr GhcTc
e
mkHsWrap HsWrapper
co_fn (HsPar XPar GhcTc
x (L SrcSpanAnnA
l HsExpr GhcTc
e))                = forall p. XPar p -> LHsExpr p -> HsExpr p
HsPar XPar GhcTc
x (forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
l (HsWrapper -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrap HsWrapper
co_fn HsExpr GhcTc
e))
mkHsWrap HsWrapper
co_fn HsExpr GhcTc
e                                = forall p. XXExpr p -> HsExpr p
XExpr (HsWrap HsExpr -> XXExprGhcTc
WrapExpr forall a b. (a -> b) -> a -> b
$ forall (hs_syn :: * -> *).
HsWrapper -> hs_syn GhcTc -> HsWrap hs_syn
HsWrap HsWrapper
co_fn HsExpr GhcTc
e)

mkHsWrapCo :: TcCoercionN   -- A Nominal coercion  a ~N b
           -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrapCo :: TcCoercionN -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrapCo TcCoercionN
co HsExpr GhcTc
e = HsWrapper -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrap (TcCoercionN -> HsWrapper
mkWpCastN TcCoercionN
co) HsExpr GhcTc
e

mkHsWrapCoR :: TcCoercionR   -- A Representational coercion  a ~R b
            -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrapCoR :: TcCoercionN -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrapCoR TcCoercionN
co HsExpr GhcTc
e = HsWrapper -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrap (TcCoercionN -> HsWrapper
mkWpCastR TcCoercionN
co) HsExpr GhcTc
e

mkLHsWrapCo :: TcCoercionN -> LHsExpr GhcTc -> LHsExpr GhcTc
mkLHsWrapCo :: TcCoercionN -> LHsExpr GhcTc -> LHsExpr GhcTc
mkLHsWrapCo TcCoercionN
co (L SrcSpanAnnA
loc HsExpr GhcTc
e) = forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc (TcCoercionN -> HsExpr GhcTc -> HsExpr GhcTc
mkHsWrapCo TcCoercionN
co HsExpr GhcTc
e)

mkHsCmdWrap :: HsWrapper -> HsCmd GhcTc -> HsCmd GhcTc
mkHsCmdWrap :: HsWrapper -> HsCmd GhcTc -> HsCmd GhcTc
mkHsCmdWrap HsWrapper
w HsCmd GhcTc
cmd | HsWrapper -> Bool
isIdHsWrapper HsWrapper
w = HsCmd GhcTc
cmd
                  | Bool
otherwise       = forall id. XXCmd id -> HsCmd id
XCmd (forall (hs_syn :: * -> *).
HsWrapper -> hs_syn GhcTc -> HsWrap hs_syn
HsWrap HsWrapper
w HsCmd GhcTc
cmd)

mkLHsCmdWrap :: HsWrapper -> LHsCmd GhcTc -> LHsCmd GhcTc
mkLHsCmdWrap :: HsWrapper -> LHsCmd GhcTc -> LHsCmd GhcTc
mkLHsCmdWrap HsWrapper
w (L SrcSpanAnnA
loc HsCmd GhcTc
c) = forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc (HsWrapper -> HsCmd GhcTc -> HsCmd GhcTc
mkHsCmdWrap HsWrapper
w HsCmd GhcTc
c)

mkHsWrapPat :: HsWrapper -> Pat GhcTc -> Type -> Pat GhcTc
mkHsWrapPat :: HsWrapper -> Pat GhcTc -> Type -> Pat GhcTc
mkHsWrapPat HsWrapper
co_fn Pat GhcTc
p Type
ty | HsWrapper -> Bool
isIdHsWrapper HsWrapper
co_fn = Pat GhcTc
p
                       | Bool
otherwise           = forall p. XXPat p -> Pat p
XPat forall a b. (a -> b) -> a -> b
$ HsWrapper -> Pat GhcTc -> Type -> CoPat
CoPat HsWrapper
co_fn Pat GhcTc
p Type
ty

mkHsWrapPatCo :: TcCoercionN -> Pat GhcTc -> Type -> Pat GhcTc
mkHsWrapPatCo :: TcCoercionN -> Pat GhcTc -> Type -> Pat GhcTc
mkHsWrapPatCo TcCoercionN
co Pat GhcTc
pat Type
ty | TcCoercionN -> Bool
isTcReflCo TcCoercionN
co = Pat GhcTc
pat
                        | Bool
otherwise     = forall p. XXPat p -> Pat p
XPat forall a b. (a -> b) -> a -> b
$ HsWrapper -> Pat GhcTc -> Type -> CoPat
CoPat (TcCoercionN -> HsWrapper
mkWpCastN TcCoercionN
co) Pat GhcTc
pat Type
ty

mkHsDictLet :: TcEvBinds -> LHsExpr GhcTc -> LHsExpr GhcTc
mkHsDictLet :: TcEvBinds -> LHsExpr GhcTc -> LHsExpr GhcTc
mkHsDictLet TcEvBinds
ev_binds LHsExpr GhcTc
expr = HsWrapper -> LHsExpr GhcTc -> LHsExpr GhcTc
mkLHsWrap (TcEvBinds -> HsWrapper
mkWpLet TcEvBinds
ev_binds) LHsExpr GhcTc
expr

{-
l
************************************************************************
*                                                                      *
                Bindings; with a location at the top
*                                                                      *
************************************************************************
-}

mkFunBind :: Origin -> LocatedN RdrName -> [LMatch GhcPs (LHsExpr GhcPs)]
          -> HsBind GhcPs
-- ^ Not infix, with place holders for coercion and free vars
mkFunBind :: Origin
-> LocatedN RdrName
-> [LMatch GhcPs (LHsExpr GhcPs)]
-> HsBind GhcPs
mkFunBind Origin
origin LocatedN RdrName
fn [LMatch GhcPs (LHsExpr GhcPs)]
ms
  = FunBind { fun_id :: LIdP GhcPs
fun_id = LocatedN RdrName
fn
            , fun_matches :: MatchGroup GhcPs (LHsExpr GhcPs)
fun_matches = forall (p :: Pass) (body :: * -> *).
AnnoBody p body =>
Origin
-> LocatedL
     [LocatedA (Match (GhcPass p) (LocatedA (body (GhcPass p))))]
-> MatchGroup (GhcPass p) (LocatedA (body (GhcPass p)))
mkMatchGroup Origin
origin (forall a an. a -> LocatedAn an a
noLocA [LMatch GhcPs (LHsExpr GhcPs)]
ms)
            , fun_ext :: XFunBind GhcPs GhcPs
fun_ext = NoExtField
noExtField
            , fun_tick :: [CoreTickish]
fun_tick = [] }

mkTopFunBind :: Origin -> LocatedN Name -> [LMatch GhcRn (LHsExpr GhcRn)]
             -> HsBind GhcRn
-- ^ In Name-land, with empty bind_fvs
mkTopFunBind :: Origin
-> GenLocated SrcSpanAnnN Name
-> [LMatch (GhcPass 'Renamed) (LHsExpr (GhcPass 'Renamed))]
-> HsBind (GhcPass 'Renamed)
mkTopFunBind Origin
origin GenLocated SrcSpanAnnN Name
fn [LMatch (GhcPass 'Renamed) (LHsExpr (GhcPass 'Renamed))]
ms = FunBind { fun_id :: LIdP (GhcPass 'Renamed)
fun_id = GenLocated SrcSpanAnnN Name
fn
                                    , fun_matches :: MatchGroup (GhcPass 'Renamed) (LHsExpr (GhcPass 'Renamed))
fun_matches = forall (p :: Pass) (body :: * -> *).
AnnoBody p body =>
Origin
-> LocatedL
     [LocatedA (Match (GhcPass p) (LocatedA (body (GhcPass p))))]
-> MatchGroup (GhcPass p) (LocatedA (body (GhcPass p)))
mkMatchGroup Origin
origin (forall a an. a -> LocatedAn an a
noLocA [LMatch (GhcPass 'Renamed) (LHsExpr (GhcPass 'Renamed))]
ms)
                                    , fun_ext :: XFunBind (GhcPass 'Renamed) (GhcPass 'Renamed)
fun_ext  = NameSet
emptyNameSet -- NB: closed
                                                              --     binding
                                    , fun_tick :: [CoreTickish]
fun_tick = [] }

mkHsVarBind :: SrcSpan -> RdrName -> LHsExpr GhcPs -> LHsBind GhcPs
mkHsVarBind :: SrcSpan -> RdrName -> LHsExpr GhcPs -> LHsBind GhcPs
mkHsVarBind SrcSpan
loc RdrName
var LHsExpr GhcPs
rhs = SrcSpan
-> RdrName -> [LPat GhcPs] -> LHsExpr GhcPs -> LHsBind GhcPs
mkSimpleGeneratedFunBind SrcSpan
loc RdrName
var [] LHsExpr GhcPs
rhs

mkVarBind :: IdP (GhcPass p) -> LHsExpr (GhcPass p) -> LHsBind (GhcPass p)
mkVarBind :: forall (p :: Pass).
IdP (GhcPass p) -> LHsExpr (GhcPass p) -> LHsBind (GhcPass p)
mkVarBind IdP (GhcPass p)
var LHsExpr (GhcPass p)
rhs = forall l e. l -> e -> GenLocated l e
L (forall l e. GenLocated l e -> l
getLoc LHsExpr (GhcPass p)
rhs) forall a b. (a -> b) -> a -> b
$
                    VarBind { var_ext :: XVarBind (GhcPass p) (GhcPass p)
var_ext = NoExtField
noExtField,
                              var_id :: IdP (GhcPass p)
var_id = IdP (GhcPass p)
var, var_rhs :: LHsExpr (GhcPass p)
var_rhs = LHsExpr (GhcPass p)
rhs }

mkPatSynBind :: LocatedN RdrName -> HsPatSynDetails GhcPs
             -> LPat GhcPs -> HsPatSynDir GhcPs -> EpAnn [AddEpAnn] -> HsBind GhcPs
mkPatSynBind :: LocatedN RdrName
-> HsPatSynDetails GhcPs
-> LPat GhcPs
-> HsPatSynDir GhcPs
-> EpAnn [AddEpAnn]
-> HsBind GhcPs
mkPatSynBind LocatedN RdrName
name HsPatSynDetails GhcPs
details LPat GhcPs
lpat HsPatSynDir GhcPs
dir EpAnn [AddEpAnn]
anns = forall idL idR.
XPatSynBind idL idR -> PatSynBind idL idR -> HsBindLR idL idR
PatSynBind NoExtField
noExtField PatSynBind GhcPs GhcPs
psb
  where
    psb :: PatSynBind GhcPs GhcPs
psb = PSB{ psb_ext :: XPSB GhcPs GhcPs
psb_ext = EpAnn [AddEpAnn]
anns
             , psb_id :: LIdP GhcPs
psb_id = LocatedN RdrName
name
             , psb_args :: HsPatSynDetails GhcPs
psb_args = HsPatSynDetails GhcPs
details
             , psb_def :: LPat GhcPs
psb_def = LPat GhcPs
lpat
             , psb_dir :: HsPatSynDir GhcPs
psb_dir = HsPatSynDir GhcPs
dir }

-- |If any of the matches in the 'FunBind' are infix, the 'FunBind' is
-- considered infix.
isInfixFunBind :: forall id1 id2. UnXRec id2 => HsBindLR id1 id2 -> Bool
isInfixFunBind :: forall id1 id2. UnXRec id2 => HsBindLR id1 id2 -> Bool
isInfixFunBind (FunBind { fun_matches :: forall idL idR. HsBindLR idL idR -> MatchGroup idR (LHsExpr idR)
fun_matches = MG XMG id2 (LHsExpr id2)
_ XRec id2 [LMatch id2 (LHsExpr id2)]
matches Origin
_ })
  = forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
any (forall id body. Match id body -> Bool
isInfixMatch forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall p a. UnXRec p => XRec p a -> a
unXRec @id2) (forall p a. UnXRec p => XRec p a -> a
unXRec @id2 XRec id2 [LMatch id2 (LHsExpr id2)]
matches)
isInfixFunBind HsBindLR id1 id2
_ = Bool
False

-- |Return the 'SrcSpan' encompassing the contents of any enclosed binds
spanHsLocaLBinds :: (Data (HsLocalBinds (GhcPass p))) => HsLocalBinds (GhcPass p) -> SrcSpan
spanHsLocaLBinds :: forall (p :: Pass).
Data (HsLocalBinds (GhcPass p)) =>
HsLocalBinds (GhcPass p) -> SrcSpan
spanHsLocaLBinds (EmptyLocalBinds XEmptyLocalBinds (GhcPass p) (GhcPass p)
_) = SrcSpan
noSrcSpan
spanHsLocaLBinds (HsValBinds XHsValBinds (GhcPass p) (GhcPass p)
_ (ValBinds XValBinds (GhcPass p) (GhcPass p)
_ LHsBindsLR (GhcPass p) (GhcPass p)
bs [LSig (GhcPass p)]
sigs))
  = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr SrcSpan -> SrcSpan -> SrcSpan
combineSrcSpans SrcSpan
noSrcSpan ([SrcSpan]
bsSpans forall a. [a] -> [a] -> [a]
++ [SrcSpan]
sigsSpans)
  where
    bsSpans :: [SrcSpan]
    bsSpans :: [SrcSpan]
bsSpans = forall a b. (a -> b) -> [a] -> [b]
map forall a e. GenLocated (SrcSpanAnn' a) e -> SrcSpan
getLocA forall a b. (a -> b) -> a -> b
$ forall a. Bag a -> [a]
bagToList LHsBindsLR (GhcPass p) (GhcPass p)
bs
    sigsSpans :: [SrcSpan]
    sigsSpans :: [SrcSpan]
sigsSpans = forall a b. (a -> b) -> [a] -> [b]
map forall a e. GenLocated (SrcSpanAnn' a) e -> SrcSpan
getLocA [LSig (GhcPass p)]
sigs
spanHsLocaLBinds (HsValBinds XHsValBinds (GhcPass p) (GhcPass p)
_ (XValBindsLR (NValBinds [(RecFlag, LHsBindsLR (GhcPass p) (GhcPass p))]
bs [LSig (GhcPass 'Renamed)]
sigs)))
  = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr SrcSpan -> SrcSpan -> SrcSpan
combineSrcSpans SrcSpan
noSrcSpan ([SrcSpan]
bsSpans forall a. [a] -> [a] -> [a]
++ [SrcSpan]
sigsSpans)
  where
    bsSpans :: [SrcSpan]
    bsSpans :: [SrcSpan]
bsSpans = forall a b. (a -> b) -> [a] -> [b]
map forall a e. GenLocated (SrcSpanAnn' a) e -> SrcSpan
getLocA forall a b. (a -> b) -> a -> b
$ forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (forall a. Bag a -> [a]
bagToList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a, b) -> b
snd) [(RecFlag, LHsBindsLR (GhcPass p) (GhcPass p))]
bs
    sigsSpans :: [SrcSpan]
    sigsSpans :: [SrcSpan]
sigsSpans = forall a b. (a -> b) -> [a] -> [b]
map forall a e. GenLocated (SrcSpanAnn' a) e -> SrcSpan
getLocA [LSig (GhcPass 'Renamed)]
sigs
spanHsLocaLBinds (HsIPBinds XHsIPBinds (GhcPass p) (GhcPass p)
_ (IPBinds XIPBinds (GhcPass p)
_ [LIPBind (GhcPass p)]
bs))
  = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr SrcSpan -> SrcSpan -> SrcSpan
combineSrcSpans SrcSpan
noSrcSpan (forall a b. (a -> b) -> [a] -> [b]
map forall a e. GenLocated (SrcSpanAnn' a) e -> SrcSpan
getLocA [LIPBind (GhcPass p)]
bs)

------------
-- | Convenience function using 'mkFunBind'.
-- This is for generated bindings only, do not use for user-written code.
mkSimpleGeneratedFunBind :: SrcSpan -> RdrName -> [LPat GhcPs]
                -> LHsExpr GhcPs -> LHsBind GhcPs
mkSimpleGeneratedFunBind :: SrcSpan
-> RdrName -> [LPat GhcPs] -> LHsExpr GhcPs -> LHsBind GhcPs
mkSimpleGeneratedFunBind SrcSpan
loc RdrName
fun [LPat GhcPs]
pats LHsExpr GhcPs
expr
  = forall l e. l -> e -> GenLocated l e
L (forall ann. SrcSpan -> SrcAnn ann
noAnnSrcSpan SrcSpan
loc) forall a b. (a -> b) -> a -> b
$ Origin
-> LocatedN RdrName
-> [LMatch GhcPs (LHsExpr GhcPs)]
-> HsBind GhcPs
mkFunBind Origin
Generated (forall l e. l -> e -> GenLocated l e
L (forall ann. SrcSpan -> SrcAnn ann
noAnnSrcSpan SrcSpan
loc) RdrName
fun)
              [forall (p :: Pass).
IsPass p =>
HsMatchContext (NoGhcTc (GhcPass p))
-> [LPat (GhcPass p)]
-> LHsExpr (GhcPass p)
-> HsLocalBinds (GhcPass p)
-> LMatch (GhcPass p) (LHsExpr (GhcPass p))
mkMatch (forall p. LIdP p -> HsMatchContext p
mkPrefixFunRhs (forall l e. l -> e -> GenLocated l e
L (forall ann. SrcSpan -> SrcAnn ann
noAnnSrcSpan SrcSpan
loc) RdrName
fun)) [LPat GhcPs]
pats LHsExpr GhcPs
expr
                       forall (a :: Pass) (b :: Pass).
HsLocalBindsLR (GhcPass a) (GhcPass b)
emptyLocalBinds]

-- | Make a prefix, non-strict function 'HsMatchContext'
mkPrefixFunRhs :: LIdP p -> HsMatchContext p
mkPrefixFunRhs :: forall p. LIdP p -> HsMatchContext p
mkPrefixFunRhs LIdP p
n = FunRhs { mc_fun :: LIdP p
mc_fun = LIdP p
n
                          , mc_fixity :: LexicalFixity
mc_fixity = LexicalFixity
Prefix
                          , mc_strictness :: SrcStrictness
mc_strictness = SrcStrictness
NoSrcStrict }

------------
mkMatch :: forall p. IsPass p
        => HsMatchContext (NoGhcTc (GhcPass p))
        -> [LPat (GhcPass p)]
        -> LHsExpr (GhcPass p)
        -> HsLocalBinds (GhcPass p)
        -> LMatch (GhcPass p) (LHsExpr (GhcPass p))
mkMatch :: forall (p :: Pass).
IsPass p =>
HsMatchContext (NoGhcTc (GhcPass p))
-> [LPat (GhcPass p)]
-> LHsExpr (GhcPass p)
-> HsLocalBinds (GhcPass p)
-> LMatch (GhcPass p) (LHsExpr (GhcPass p))
mkMatch HsMatchContext (NoGhcTc (GhcPass p))
ctxt [LPat (GhcPass p)]
pats LHsExpr (GhcPass p)
expr HsLocalBinds (GhcPass p)
binds
  = forall a an. a -> LocatedAn an a
noLocA (Match { m_ext :: XCMatch (GhcPass p) (LocatedA (HsExpr (GhcPass p)))
m_ext   = forall a. EpAnn a
noAnn
                  , m_ctxt :: HsMatchContext (NoGhcTc (GhcPass p))
m_ctxt  = HsMatchContext (NoGhcTc (GhcPass p))
ctxt
                  , m_pats :: [LPat (GhcPass p)]
m_pats  = forall a b. (a -> b) -> [a] -> [b]
map LPat (GhcPass p) -> LPat (GhcPass p)
paren [LPat (GhcPass p)]
pats
                  , m_grhss :: GRHSs (GhcPass p) (LocatedA (HsExpr (GhcPass p)))
m_grhss = forall p body.
XCGRHSs p body -> [LGRHS p body] -> HsLocalBinds p -> GRHSs p body
GRHSs EpAnnComments
emptyComments (forall (p :: Pass) (body :: * -> *).
(Anno (GRHS (GhcPass p) (LocatedA (body (GhcPass p))))
 ~ SrcSpan) =>
EpAnn GrhsAnn
-> SrcSpan
-> LocatedA (body (GhcPass p))
-> [LGRHS (GhcPass p) (LocatedA (body (GhcPass p)))]
unguardedRHS forall a. EpAnn a
noAnn SrcSpan
noSrcSpan LHsExpr (GhcPass p)
expr) HsLocalBinds (GhcPass p)
binds })
  where
    paren :: LPat (GhcPass p) -> LPat (GhcPass p)
    paren :: LPat (GhcPass p) -> LPat (GhcPass p)
paren lp :: LPat (GhcPass p)
lp@(L SrcSpanAnnA
l Pat (GhcPass p)
p)
      | forall (p :: Pass). IsPass p => PprPrec -> Pat (GhcPass p) -> Bool
patNeedsParens PprPrec
appPrec Pat (GhcPass p)
p = forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
l (forall p. XParPat p -> LPat p -> Pat p
ParPat forall a. EpAnn a
noAnn LPat (GhcPass p)
lp)
      | Bool
otherwise                = LPat (GhcPass p)
lp

{-
************************************************************************
*                                                                      *
        Collecting binders
*                                                                      *
************************************************************************

Get all the binders in some HsBindGroups, IN THE ORDER OF APPEARANCE. eg.

...
where
  (x, y) = ...
  f i j  = ...
  [a, b] = ...

it should return [x, y, f, a, b] (remember, order important).

Note [Collect binders only after renaming]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
These functions should only be used on HsSyn *after* the renamer,
to return a [Name] or [Id].  Before renaming the record punning
and wild-card mechanism makes it hard to know what is bound.
So these functions should not be applied to (HsSyn RdrName)

Note [Unlifted id check in isUnliftedHsBind]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The function isUnliftedHsBind is used to complain if we make a top-level
binding for a variable of unlifted type.

Such a binding is illegal if the top-level binding would be unlifted;
but also if the local letrec generated by desugaring AbsBinds would be.
E.g.
      f :: Num a => (# a, a #)
      g :: Num a => a -> a
      f = ...g...
      g = ...g...

The top-level bindings for f,g are not unlifted (because of the Num a =>),
but the local, recursive, monomorphic bindings are:

      t = /\a \(d:Num a).
         letrec fm :: (# a, a #) = ...g...
                gm :: a -> a = ...f...
         in (fm, gm)

Here the binding for 'fm' is illegal.  So generally we check the abe_mono types.

BUT we have a special case when abs_sig is true;
  see Note [The abs_sig field of AbsBinds] in GHC.Hs.Binds
-}

----------------- Bindings --------------------------

-- | Should we treat this as an unlifted bind? This will be true for any
-- bind that binds an unlifted variable, but we must be careful around
-- AbsBinds. See Note [Unlifted id check in isUnliftedHsBind]. For usage
-- information, see Note [Strict binds checks] is GHC.HsToCore.Binds.
isUnliftedHsBind :: HsBind GhcTc -> Bool  -- works only over typechecked binds
isUnliftedHsBind :: HsBind GhcTc -> Bool
isUnliftedHsBind HsBind GhcTc
bind
  | AbsBinds { abs_exports :: forall idL idR. HsBindLR idL idR -> [ABExport idL]
abs_exports = [ABExport GhcTc]
exports, abs_sig :: forall idL idR. HsBindLR idL idR -> Bool
abs_sig = Bool
has_sig } <- HsBind GhcTc
bind
  = if Bool
has_sig
    then forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
any (Id -> Bool
is_unlifted_id forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall p. ABExport p -> IdP p
abe_poly) [ABExport GhcTc]
exports
    else forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
any (Id -> Bool
is_unlifted_id forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall p. ABExport p -> IdP p
abe_mono) [ABExport GhcTc]
exports
    -- If has_sig is True we will never generate a binding for abe_mono,
    -- so we don't need to worry about it being unlifted. The abe_poly
    -- binding might not be: e.g. forall a. Num a => (# a, a #)

  | Bool
otherwise
  = forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
any Id -> Bool
is_unlifted_id (forall p idR.
CollectPass p =>
CollectFlag p -> HsBindLR p idR -> [IdP p]
collectHsBindBinders forall p. CollectFlag p
CollNoDictBinders HsBind GhcTc
bind)
  where
    is_unlifted_id :: Id -> Bool
is_unlifted_id Id
id = HasDebugCallStack => Type -> Bool
isUnliftedType (Id -> Type
idType Id
id)

-- | Is a binding a strict variable or pattern bind (e.g. @!x = ...@)?
isBangedHsBind :: HsBind GhcTc -> Bool
isBangedHsBind :: HsBind GhcTc -> Bool
isBangedHsBind (AbsBinds { abs_binds :: forall idL idR. HsBindLR idL idR -> LHsBinds idL
abs_binds = LHsBinds GhcTc
binds })
  = forall a. (a -> Bool) -> Bag a -> Bool
anyBag (HsBind GhcTc -> Bool
isBangedHsBind forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) LHsBinds GhcTc
binds
isBangedHsBind (FunBind {fun_matches :: forall idL idR. HsBindLR idL idR -> MatchGroup idR (LHsExpr idR)
fun_matches = MatchGroup GhcTc (LHsExpr GhcTc)
matches})
  | [L Anno (Match GhcTc (GenLocated SrcSpanAnnA (HsExpr GhcTc)))
_ Match GhcTc (GenLocated SrcSpanAnnA (HsExpr GhcTc))
match] <- forall l e. GenLocated l e -> e
unLoc forall a b. (a -> b) -> a -> b
$ forall p body. MatchGroup p body -> XRec p [LMatch p body]
mg_alts MatchGroup GhcTc (LHsExpr GhcTc)
matches
  , FunRhs{mc_strictness :: forall p. HsMatchContext p -> SrcStrictness
mc_strictness = SrcStrictness
SrcStrict} <- forall p body. Match p body -> HsMatchContext (NoGhcTc p)
m_ctxt Match GhcTc (GenLocated SrcSpanAnnA (HsExpr GhcTc))
match
  = Bool
True
isBangedHsBind (PatBind {pat_lhs :: forall idL idR. HsBindLR idL idR -> LPat idL
pat_lhs = LPat GhcTc
pat})
  = forall (p :: Pass). LPat (GhcPass p) -> Bool
isBangedLPat LPat GhcTc
pat
isBangedHsBind HsBind GhcTc
_
  = Bool
False

collectLocalBinders :: CollectPass (GhcPass idL)
                    => CollectFlag (GhcPass idL)
                    -> HsLocalBindsLR (GhcPass idL) (GhcPass idR)
                    -> [IdP (GhcPass idL)]
collectLocalBinders :: forall (idL :: Pass) (idR :: Pass).
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> HsLocalBindsLR (GhcPass idL) (GhcPass idR)
-> [IdP (GhcPass idL)]
collectLocalBinders CollectFlag (GhcPass idL)
flag = \case
    HsValBinds XHsValBinds (GhcPass idL) (GhcPass idR)
_ HsValBindsLR (GhcPass idL) (GhcPass idR)
binds -> forall (idL :: Pass) (idR :: Pass).
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> HsValBindsLR (GhcPass idL) (GhcPass idR) -> [IdP (GhcPass idL)]
collectHsIdBinders CollectFlag (GhcPass idL)
flag HsValBindsLR (GhcPass idL) (GhcPass idR)
binds
                          -- No pattern synonyms here
    HsIPBinds {}       -> []
    EmptyLocalBinds XEmptyLocalBinds (GhcPass idL) (GhcPass idR)
_  -> []

collectHsIdBinders :: CollectPass (GhcPass idL)
                   => CollectFlag (GhcPass idL)
                   -> HsValBindsLR (GhcPass idL) (GhcPass idR)
                   -> [IdP (GhcPass idL)]
-- ^ Collect 'Id' binders only, or 'Id's + pattern synonyms, respectively
collectHsIdBinders :: forall (idL :: Pass) (idR :: Pass).
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> HsValBindsLR (GhcPass idL) (GhcPass idR) -> [IdP (GhcPass idL)]
collectHsIdBinders CollectFlag (GhcPass idL)
flag = forall (idL :: Pass) (idR :: Pass).
CollectPass (GhcPass idL) =>
Bool
-> CollectFlag (GhcPass idL)
-> HsValBindsLR (GhcPass idL) (GhcPass idR)
-> [IdP (GhcPass idL)]
collect_hs_val_binders Bool
True CollectFlag (GhcPass idL)
flag

collectHsValBinders :: CollectPass (GhcPass idL)
                    => CollectFlag (GhcPass idL)
                    -> HsValBindsLR (GhcPass idL) (GhcPass idR)
                    -> [IdP (GhcPass idL)]
collectHsValBinders :: forall (idL :: Pass) (idR :: Pass).
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> HsValBindsLR (GhcPass idL) (GhcPass idR) -> [IdP (GhcPass idL)]
collectHsValBinders CollectFlag (GhcPass idL)
flag = forall (idL :: Pass) (idR :: Pass).
CollectPass (GhcPass idL) =>
Bool
-> CollectFlag (GhcPass idL)
-> HsValBindsLR (GhcPass idL) (GhcPass idR)
-> [IdP (GhcPass idL)]
collect_hs_val_binders Bool
False CollectFlag (GhcPass idL)
flag

collectHsBindBinders :: CollectPass p
                     => CollectFlag p
                     -> HsBindLR p idR
                     -> [IdP p]
-- ^ Collect both 'Id's and pattern-synonym binders
collectHsBindBinders :: forall p idR.
CollectPass p =>
CollectFlag p -> HsBindLR p idR -> [IdP p]
collectHsBindBinders CollectFlag p
flag HsBindLR p idR
b = forall p idR.
CollectPass p =>
Bool -> CollectFlag p -> HsBindLR p idR -> [IdP p] -> [IdP p]
collect_bind Bool
False CollectFlag p
flag HsBindLR p idR
b []

collectHsBindsBinders :: CollectPass p
                      => CollectFlag p
                      -> LHsBindsLR p idR
                      -> [IdP p]
collectHsBindsBinders :: forall p idR.
CollectPass p =>
CollectFlag p -> LHsBindsLR p idR -> [IdP p]
collectHsBindsBinders CollectFlag p
flag LHsBindsLR p idR
binds = forall p idR.
CollectPass p =>
Bool -> CollectFlag p -> LHsBindsLR p idR -> [IdP p] -> [IdP p]
collect_binds Bool
False CollectFlag p
flag LHsBindsLR p idR
binds []

collectHsBindListBinders :: forall p idR. CollectPass p
                         => CollectFlag p
                         -> [LHsBindLR p idR]
                         -> [IdP p]
-- ^ Same as 'collectHsBindsBinders', but works over a list of bindings
collectHsBindListBinders :: forall p idR.
CollectPass p =>
CollectFlag p -> [LHsBindLR p idR] -> [IdP p]
collectHsBindListBinders CollectFlag p
flag = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr (forall p idR.
CollectPass p =>
Bool -> CollectFlag p -> HsBindLR p idR -> [IdP p] -> [IdP p]
collect_bind Bool
False CollectFlag p
flag forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall p a. UnXRec p => XRec p a -> a
unXRec @p) []

collect_hs_val_binders :: CollectPass (GhcPass idL)
                       => Bool
                       -> CollectFlag (GhcPass idL)
                       -> HsValBindsLR (GhcPass idL) (GhcPass idR)
                       -> [IdP (GhcPass idL)]
collect_hs_val_binders :: forall (idL :: Pass) (idR :: Pass).
CollectPass (GhcPass idL) =>
Bool
-> CollectFlag (GhcPass idL)
-> HsValBindsLR (GhcPass idL) (GhcPass idR)
-> [IdP (GhcPass idL)]
collect_hs_val_binders Bool
ps CollectFlag (GhcPass idL)
flag = \case
    ValBinds XValBinds (GhcPass idL) (GhcPass idR)
_ LHsBindsLR (GhcPass idL) (GhcPass idR)
binds [LSig (GhcPass idR)]
_              -> forall p idR.
CollectPass p =>
Bool -> CollectFlag p -> LHsBindsLR p idR -> [IdP p] -> [IdP p]
collect_binds Bool
ps CollectFlag (GhcPass idL)
flag LHsBindsLR (GhcPass idL) (GhcPass idR)
binds []
    XValBindsLR (NValBinds [(RecFlag, LHsBinds (GhcPass idL))]
binds [LSig (GhcPass 'Renamed)]
_) -> forall p.
CollectPass p =>
Bool -> CollectFlag p -> [(RecFlag, LHsBinds p)] -> [IdP p]
collect_out_binds Bool
ps CollectFlag (GhcPass idL)
flag [(RecFlag, LHsBinds (GhcPass idL))]
binds

collect_out_binds :: forall p. CollectPass p
                  => Bool
                  -> CollectFlag p
                  -> [(RecFlag, LHsBinds p)]
                  -> [IdP p]
collect_out_binds :: forall p.
CollectPass p =>
Bool -> CollectFlag p -> [(RecFlag, LHsBinds p)] -> [IdP p]
collect_out_binds Bool
ps CollectFlag p
flag = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr (forall p idR.
CollectPass p =>
Bool -> CollectFlag p -> LHsBindsLR p idR -> [IdP p] -> [IdP p]
collect_binds Bool
ps CollectFlag p
flag forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a, b) -> b
snd) []

collect_binds :: forall p idR. CollectPass p
              => Bool
              -> CollectFlag p
              -> LHsBindsLR p idR
              -> [IdP p]
              -> [IdP p]
-- ^ Collect 'Id's, or 'Id's + pattern synonyms, depending on boolean flag
collect_binds :: forall p idR.
CollectPass p =>
Bool -> CollectFlag p -> LHsBindsLR p idR -> [IdP p] -> [IdP p]
collect_binds Bool
ps CollectFlag p
flag LHsBindsLR p idR
binds [IdP p]
acc = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr (forall p idR.
CollectPass p =>
Bool -> CollectFlag p -> HsBindLR p idR -> [IdP p] -> [IdP p]
collect_bind Bool
ps CollectFlag p
flag forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall p a. UnXRec p => XRec p a -> a
unXRec @p) [IdP p]
acc LHsBindsLR p idR
binds

collect_bind :: forall p idR. CollectPass p
             => Bool
             -> CollectFlag p
             -> HsBindLR p idR
             -> [IdP p]
             -> [IdP p]
collect_bind :: forall p idR.
CollectPass p =>
Bool -> CollectFlag p -> HsBindLR p idR -> [IdP p] -> [IdP p]
collect_bind Bool
_ CollectFlag p
flag (PatBind { pat_lhs :: forall idL idR. HsBindLR idL idR -> LPat idL
pat_lhs = LPat p
p })           [IdP p]
acc = forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag LPat p
p [IdP p]
acc
collect_bind Bool
_ CollectFlag p
_ (FunBind { fun_id :: forall idL idR. HsBindLR idL idR -> LIdP idL
fun_id = LIdP p
f })            [IdP p]
acc = forall p a. UnXRec p => XRec p a -> a
unXRec @p LIdP p
f forall a. a -> [a] -> [a]
: [IdP p]
acc
collect_bind Bool
_ CollectFlag p
_ (VarBind { var_id :: forall idL idR. HsBindLR idL idR -> IdP idL
var_id = IdP p
f })            [IdP p]
acc = IdP p
f forall a. a -> [a] -> [a]
: [IdP p]
acc
collect_bind Bool
_ CollectFlag p
_ (AbsBinds { abs_exports :: forall idL idR. HsBindLR idL idR -> [ABExport idL]
abs_exports = [ABExport p]
dbinds }) [IdP p]
acc = forall a b. (a -> b) -> [a] -> [b]
map forall p. ABExport p -> IdP p
abe_poly [ABExport p]
dbinds forall a. [a] -> [a] -> [a]
++ [IdP p]
acc
        -- I don't think we want the binders from the abe_binds

        -- binding (hence see AbsBinds) is in zonking in GHC.Tc.Utils.Zonk
collect_bind Bool
omitPatSyn CollectFlag p
_ (PatSynBind XPatSynBind p idR
_ (PSB { psb_id :: forall idL idR. PatSynBind idL idR -> LIdP idL
psb_id = LIdP p
ps })) [IdP p]
acc
  | Bool
omitPatSyn                  = [IdP p]
acc
  | Bool
otherwise                   = forall p a. UnXRec p => XRec p a -> a
unXRec @p LIdP p
ps forall a. a -> [a] -> [a]
: [IdP p]
acc
collect_bind Bool
_ CollectFlag p
_ (PatSynBind XPatSynBind p idR
_ (XPatSynBind XXPatSynBind p idR
_)) [IdP p]
acc = [IdP p]
acc
collect_bind Bool
_ CollectFlag p
_ (XHsBindsLR XXHsBindsLR p idR
_) [IdP p]
acc = [IdP p]
acc

collectMethodBinders :: forall idL idR. UnXRec idL => LHsBindsLR idL idR -> [LIdP idL]
-- ^ Used exclusively for the bindings of an instance decl which are all
-- 'FunBinds'
collectMethodBinders :: forall idL idR. UnXRec idL => LHsBindsLR idL idR -> [LIdP idL]
collectMethodBinders LHsBindsLR idL idR
binds = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr (forall {idL} {idR}.
HsBindLR idL idR -> [XRec idL (IdP idL)] -> [XRec idL (IdP idL)]
get forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall p a. UnXRec p => XRec p a -> a
unXRec @idL) [] LHsBindsLR idL idR
binds
  where
    get :: HsBindLR idL idR -> [XRec idL (IdP idL)] -> [XRec idL (IdP idL)]
get (FunBind { fun_id :: forall idL idR. HsBindLR idL idR -> LIdP idL
fun_id = XRec idL (IdP idL)
f }) [XRec idL (IdP idL)]
fs = XRec idL (IdP idL)
f forall a. a -> [a] -> [a]
: [XRec idL (IdP idL)]
fs
    get HsBindLR idL idR
_                        [XRec idL (IdP idL)]
fs = [XRec idL (IdP idL)]
fs
       -- Someone else complains about non-FunBinds

----------------- Statements --------------------------
--
collectLStmtsBinders
  :: CollectPass (GhcPass idL)
  => CollectFlag (GhcPass idL)
  -> [LStmtLR (GhcPass idL) (GhcPass idR) body]
  -> [IdP (GhcPass idL)]
collectLStmtsBinders :: forall (idL :: Pass) (idR :: Pass) body.
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> [LStmtLR (GhcPass idL) (GhcPass idR) body]
-> [IdP (GhcPass idL)]
collectLStmtsBinders CollectFlag (GhcPass idL)
flag = forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (forall (idL :: Pass) (idR :: Pass) body.
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> LStmtLR (GhcPass idL) (GhcPass idR) body -> [IdP (GhcPass idL)]
collectLStmtBinders CollectFlag (GhcPass idL)
flag)

collectStmtsBinders
  :: (CollectPass (GhcPass idL))
  => CollectFlag (GhcPass idL)
  -> [StmtLR (GhcPass idL) (GhcPass idR) body]
  -> [IdP (GhcPass idL)]
collectStmtsBinders :: forall (idL :: Pass) (idR :: Pass) body.
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> [StmtLR (GhcPass idL) (GhcPass idR) body] -> [IdP (GhcPass idL)]
collectStmtsBinders CollectFlag (GhcPass idL)
flag = forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (forall (idL :: Pass) (idR :: Pass) body.
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> StmtLR (GhcPass idL) (GhcPass idR) body -> [IdP (GhcPass idL)]
collectStmtBinders CollectFlag (GhcPass idL)
flag)

collectLStmtBinders
  :: (CollectPass (GhcPass idL))
  => CollectFlag (GhcPass idL)
  -> LStmtLR (GhcPass idL) (GhcPass idR) body
  -> [IdP (GhcPass idL)]
collectLStmtBinders :: forall (idL :: Pass) (idR :: Pass) body.
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> LStmtLR (GhcPass idL) (GhcPass idR) body -> [IdP (GhcPass idL)]
collectLStmtBinders CollectFlag (GhcPass idL)
flag = forall (idL :: Pass) (idR :: Pass) body.
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> StmtLR (GhcPass idL) (GhcPass idR) body -> [IdP (GhcPass idL)]
collectStmtBinders CollectFlag (GhcPass idL)
flag forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc

collectStmtBinders
  :: CollectPass (GhcPass idL)
  => CollectFlag (GhcPass idL)
  -> StmtLR (GhcPass idL) (GhcPass idR) body
  -> [IdP (GhcPass idL)]
  -- Id Binders for a Stmt... [but what about pattern-sig type vars]?
collectStmtBinders :: forall (idL :: Pass) (idR :: Pass) body.
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> StmtLR (GhcPass idL) (GhcPass idR) body -> [IdP (GhcPass idL)]
collectStmtBinders CollectFlag (GhcPass idL)
flag = \case
    BindStmt XBindStmt (GhcPass idL) (GhcPass idR) body
_ LPat (GhcPass idL)
pat body
_ -> forall p. CollectPass p => CollectFlag p -> LPat p -> [IdP p]
collectPatBinders CollectFlag (GhcPass idL)
flag LPat (GhcPass idL)
pat
    LetStmt XLetStmt (GhcPass idL) (GhcPass idR) body
_  HsLocalBindsLR (GhcPass idL) (GhcPass idR)
binds -> forall (idL :: Pass) (idR :: Pass).
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> HsLocalBindsLR (GhcPass idL) (GhcPass idR)
-> [IdP (GhcPass idL)]
collectLocalBinders CollectFlag (GhcPass idL)
flag HsLocalBindsLR (GhcPass idL) (GhcPass idR)
binds
    BodyStmt {}      -> []
    LastStmt {}      -> []
    ParStmt XParStmt (GhcPass idL) (GhcPass idR) body
_ [ParStmtBlock (GhcPass idL) (GhcPass idR)]
xs HsExpr (GhcPass idR)
_ SyntaxExpr (GhcPass idR)
_ -> forall (idL :: Pass) (idR :: Pass) body.
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> [LStmtLR (GhcPass idL) (GhcPass idR) body]
-> [IdP (GhcPass idL)]
collectLStmtsBinders CollectFlag (GhcPass idL)
flag [GenLocated
  SrcSpanAnnA
  (StmtLR
     (GhcPass idL)
     (GhcPass idL)
     (GenLocated SrcSpanAnnA (HsExpr (GhcPass idL))))
s | ParStmtBlock XParStmtBlock (GhcPass idL) (GhcPass idR)
_ [ExprLStmt (GhcPass idL)]
ss [IdP (GhcPass idR)]
_ SyntaxExpr (GhcPass idR)
_ <- [ParStmtBlock (GhcPass idL) (GhcPass idR)]
xs, GenLocated
  SrcSpanAnnA
  (StmtLR
     (GhcPass idL)
     (GhcPass idL)
     (GenLocated SrcSpanAnnA (HsExpr (GhcPass idL))))
s <- [ExprLStmt (GhcPass idL)]
ss]
    TransStmt { trS_stmts :: forall idL idR body. StmtLR idL idR body -> [ExprLStmt idL]
trS_stmts = [ExprLStmt (GhcPass idL)]
stmts } -> forall (idL :: Pass) (idR :: Pass) body.
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> [LStmtLR (GhcPass idL) (GhcPass idR) body]
-> [IdP (GhcPass idL)]
collectLStmtsBinders CollectFlag (GhcPass idL)
flag [ExprLStmt (GhcPass idL)]
stmts
    RecStmt { recS_stmts :: forall idL idR body.
StmtLR idL idR body -> XRec idR [LStmtLR idL idR body]
recS_stmts = L Anno
  [GenLocated
     (Anno (StmtLR (GhcPass idL) (GhcPass idR) body))
     (StmtLR (GhcPass idL) (GhcPass idR) body)]
_ [GenLocated
   (Anno (StmtLR (GhcPass idL) (GhcPass idR) body))
   (StmtLR (GhcPass idL) (GhcPass idR) body)]
ss } -> forall (idL :: Pass) (idR :: Pass) body.
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> [LStmtLR (GhcPass idL) (GhcPass idR) body]
-> [IdP (GhcPass idL)]
collectLStmtsBinders CollectFlag (GhcPass idL)
flag [GenLocated
   (Anno (StmtLR (GhcPass idL) (GhcPass idR) body))
   (StmtLR (GhcPass idL) (GhcPass idR) body)]
ss
    ApplicativeStmt XApplicativeStmt (GhcPass idL) (GhcPass idR) body
_ [(SyntaxExpr (GhcPass idR), ApplicativeArg (GhcPass idL))]
args Maybe (SyntaxExpr (GhcPass idR))
_        -> forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (SyntaxExprGhc idR, ApplicativeArg (GhcPass idL))
-> [IdP (GhcPass idL)]
collectArgBinders [(SyntaxExpr (GhcPass idR), ApplicativeArg (GhcPass idL))]
args
        where
         collectArgBinders :: (SyntaxExprGhc idR, ApplicativeArg (GhcPass idL))
-> [IdP (GhcPass idL)]
collectArgBinders = \case
            (SyntaxExprGhc idR
_, ApplicativeArgOne { app_arg_pattern :: forall idL. ApplicativeArg idL -> LPat idL
app_arg_pattern = LPat (GhcPass idL)
pat }) -> forall p. CollectPass p => CollectFlag p -> LPat p -> [IdP p]
collectPatBinders CollectFlag (GhcPass idL)
flag LPat (GhcPass idL)
pat
            (SyntaxExprGhc idR
_, ApplicativeArgMany { bv_pattern :: forall idL. ApplicativeArg idL -> LPat idL
bv_pattern = LPat (GhcPass idL)
pat })     -> forall p. CollectPass p => CollectFlag p -> LPat p -> [IdP p]
collectPatBinders CollectFlag (GhcPass idL)
flag LPat (GhcPass idL)
pat


----------------- Patterns --------------------------

collectPatBinders
    :: CollectPass p
    => CollectFlag p
    -> LPat p
    -> [IdP p]
collectPatBinders :: forall p. CollectPass p => CollectFlag p -> LPat p -> [IdP p]
collectPatBinders CollectFlag p
flag LPat p
pat = forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag LPat p
pat []

collectPatsBinders
    :: CollectPass p
    => CollectFlag p
    -> [LPat p]
    -> [IdP p]
collectPatsBinders :: forall p. CollectPass p => CollectFlag p -> [LPat p] -> [IdP p]
collectPatsBinders CollectFlag p
flag [LPat p]
pats = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr (forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag) [] [LPat p]
pats


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

-- | Indicate if evidence binders have to be collected.
--
-- This type is used as a boolean (should we collect evidence binders or not?)
-- but also to pass an evidence that the AST has been typechecked when we do
-- want to collect evidence binders, otherwise these binders are not available.
--
-- See Note [Dictionary binders in ConPatOut]
data CollectFlag p where
    -- | Don't collect evidence binders
    CollNoDictBinders   :: CollectFlag p
    -- | Collect evidence binders
    CollWithDictBinders :: CollectFlag GhcTc

collect_lpat :: forall p. (CollectPass p)
             => CollectFlag p
             -> LPat p
             -> [IdP p]
             -> [IdP p]
collect_lpat :: forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag LPat p
pat [IdP p]
bndrs = forall p.
CollectPass p =>
CollectFlag p -> Pat p -> [IdP p] -> [IdP p]
collect_pat CollectFlag p
flag (forall p a. UnXRec p => XRec p a -> a
unXRec @p LPat p
pat) [IdP p]
bndrs

collect_pat :: forall p. CollectPass p
            => CollectFlag p
            -> Pat p
            -> [IdP p]
            -> [IdP p]
collect_pat :: forall p.
CollectPass p =>
CollectFlag p -> Pat p -> [IdP p] -> [IdP p]
collect_pat CollectFlag p
flag Pat p
pat [IdP p]
bndrs = case Pat p
pat of
  VarPat XVarPat p
_ LIdP p
var          -> forall p a. UnXRec p => XRec p a -> a
unXRec @p LIdP p
var forall a. a -> [a] -> [a]
: [IdP p]
bndrs
  WildPat XWildPat p
_             -> [IdP p]
bndrs
  LazyPat XLazyPat p
_ LPat p
pat         -> forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag LPat p
pat [IdP p]
bndrs
  BangPat XBangPat p
_ LPat p
pat         -> forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag LPat p
pat [IdP p]
bndrs
  AsPat XAsPat p
_ LIdP p
a LPat p
pat         -> forall p a. UnXRec p => XRec p a -> a
unXRec @p LIdP p
a forall a. a -> [a] -> [a]
: forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag LPat p
pat [IdP p]
bndrs
  ViewPat XViewPat p
_ LHsExpr p
_ LPat p
pat       -> forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag LPat p
pat [IdP p]
bndrs
  ParPat XParPat p
_ LPat p
pat          -> forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag LPat p
pat [IdP p]
bndrs
  ListPat XListPat p
_ [LPat p]
pats        -> forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr (forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag) [IdP p]
bndrs [LPat p]
pats
  TuplePat XTuplePat p
_ [LPat p]
pats Boxity
_     -> forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr (forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag) [IdP p]
bndrs [LPat p]
pats
  SumPat XSumPat p
_ LPat p
pat Int
_ Int
_      -> forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag LPat p
pat [IdP p]
bndrs
  LitPat XLitPat p
_ HsLit p
_            -> [IdP p]
bndrs
  NPat {}               -> [IdP p]
bndrs
  NPlusKPat XNPlusKPat p
_ LIdP p
n XRec p (HsOverLit p)
_ HsOverLit p
_ SyntaxExpr p
_ SyntaxExpr p
_ -> forall p a. UnXRec p => XRec p a -> a
unXRec @p LIdP p
n forall a. a -> [a] -> [a]
: [IdP p]
bndrs
  SigPat XSigPat p
_ LPat p
pat HsPatSigType (NoGhcTc p)
_        -> forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag LPat p
pat [IdP p]
bndrs
  XPat XXPat p
ext              -> forall p.
CollectPass p =>
Proxy p -> CollectFlag p -> XXPat p -> [IdP p] -> [IdP p]
collectXXPat (forall {k} (t :: k). Proxy t
Proxy @p) CollectFlag p
flag XXPat p
ext [IdP p]
bndrs
  SplicePat XSplicePat p
_ (HsSpliced XSpliced p
_ ThModFinalizers
_ (HsSplicedPat Pat p
pat))
                        -> forall p.
CollectPass p =>
CollectFlag p -> Pat p -> [IdP p] -> [IdP p]
collect_pat CollectFlag p
flag Pat p
pat [IdP p]
bndrs
  SplicePat XSplicePat p
_ HsSplice p
_         -> [IdP p]
bndrs
  -- See Note [Dictionary binders in ConPatOut]
  ConPat {pat_args :: forall p. Pat p -> HsConPatDetails p
pat_args=HsConPatDetails p
ps}  -> case CollectFlag p
flag of
    CollectFlag p
CollNoDictBinders   -> forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr (forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag) [IdP p]
bndrs (forall p. UnXRec p => HsConPatDetails p -> [LPat p]
hsConPatArgs HsConPatDetails p
ps)
    CollectFlag p
CollWithDictBinders -> forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr (forall p.
CollectPass p =>
CollectFlag p -> LPat p -> [IdP p] -> [IdP p]
collect_lpat CollectFlag p
flag) [IdP p]
bndrs (forall p. UnXRec p => HsConPatDetails p -> [LPat p]
hsConPatArgs HsConPatDetails p
ps)
                           forall a. [a] -> [a] -> [a]
++ TcEvBinds -> [Id]
collectEvBinders (ConPatTc -> TcEvBinds
cpt_binds (forall p. Pat p -> XConPat p
pat_con_ext Pat p
pat))

collectEvBinders :: TcEvBinds -> [Id]
collectEvBinders :: TcEvBinds -> [Id]
collectEvBinders (EvBinds Bag EvBind
bs)   = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr EvBind -> [Id] -> [Id]
add_ev_bndr [] Bag EvBind
bs
collectEvBinders (TcEvBinds {}) = forall a. String -> a
panic String
"ToDo: collectEvBinders"

add_ev_bndr :: EvBind -> [Id] -> [Id]
add_ev_bndr :: EvBind -> [Id] -> [Id]
add_ev_bndr (EvBind { eb_lhs :: EvBind -> Id
eb_lhs = Id
b }) [Id]
bs | Id -> Bool
isId Id
b    = Id
bforall a. a -> [a] -> [a]
:[Id]
bs
                                       | Bool
otherwise = [Id]
bs
  -- A worry: what about coercion variable binders??


-- | This class specifies how to collect variable identifiers from extension patterns in the given pass.
-- Consumers of the GHC API that define their own passes should feel free to implement instances in order
-- to make use of functions which depend on it.
--
-- In particular, Haddock already makes use of this, with an instance for its 'DocNameI' pass so that
-- it can reuse the code in GHC for collecting binders.
class UnXRec p => CollectPass p where
  collectXXPat :: Proxy p -> CollectFlag p -> XXPat p -> [IdP p] -> [IdP p]

instance IsPass p => CollectPass (GhcPass p) where
  collectXXPat :: Proxy (GhcPass p)
-> CollectFlag (GhcPass p)
-> XXPat (GhcPass p)
-> [IdP (GhcPass p)]
-> [IdP (GhcPass p)]
collectXXPat Proxy (GhcPass p)
_ CollectFlag (GhcPass p)
flag XXPat (GhcPass p)
ext =
    case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @p of
      GhcPass p
GhcTc -> let CoPat HsWrapper
_ Pat GhcTc
pat Type
_ = XXPat (GhcPass p)
ext in forall p.
CollectPass p =>
CollectFlag p -> Pat p -> [IdP p] -> [IdP p]
collect_pat CollectFlag (GhcPass p)
flag Pat GhcTc
pat
      GhcPass p
GhcRn -> forall a. NoExtCon -> a
noExtCon XXPat (GhcPass p)
ext
      GhcPass p
GhcPs -> forall a. NoExtCon -> a
noExtCon XXPat (GhcPass p)
ext

{-
Note [Dictionary binders in ConPatOut]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Should we collect dictionary binders in ConPatOut? It depends! Use CollectFlag
to choose.

1. Pre-typechecker there are no ConPatOuts. Use CollNoDictBinders flag.

2. In the desugarer, most of the time we don't want to collect evidence binders,
   so we also use CollNoDictBinders flag.

   Example of why it matters:

   In a lazy pattern, for example f ~(C x y) = ..., we want to generate bindings
   for x,y but not for dictionaries bound by C.
   (The type checker ensures they would not be used.)

   Here's the problem.  Consider

        data T a where
           C :: Num a => a -> Int -> T a

        f ~(C (n+1) m) = (n,m)

   Here, the pattern (C (n+1)) binds a hidden dictionary (d::Num a),
   and *also* uses that dictionary to match the (n+1) pattern.  Yet, the
   variables bound by the lazy pattern are n,m, *not* the dictionary d.
   So in mkSelectorBinds in GHC.HsToCore.Utils, we want just m,n as the
   variables bound.

   So in this case, we do *not* gather (a) dictionary and (b) dictionary
   bindings as binders of a ConPatOut pattern.


3. On the other hand, desugaring of arrows needs evidence bindings and uses
   CollWithDictBinders flag.

   Consider

        h :: (ArrowChoice a, Arrow a) => Int -> a (Int,Int) Int
        h x = proc (y,z) -> case compare x y of
                        GT -> returnA -< z+x

   The type checker turns the case into

        case compare x y of
          GT { $dNum_123 = $dNum_Int } -> returnA -< (+) $dNum_123 z x

   That is, it attaches the $dNum_123 binding to a ConPatOut in scope.

   During desugaring, evidence binders must be collected because their sets are
   intersected with free variable sets of subsequent commands to create
   (minimal) command environments.  Failing to do it properly leads to bugs
   (e.g., #18950).

   Note: attaching evidence binders to existing ConPatOut may be suboptimal for
   arrows.  In the example above we would prefer to generate:

        case compare x y of
          GT -> returnA -< let $dNum_123 = $dNum_Int in (+) $dNum_123 z x

   So that the evidence isn't passed into the command environment. This issue
   doesn't arise with desugaring of non-arrow code because the simplifier can
   freely float and inline let-expressions created for evidence binders. But
   with arrow desugaring, the simplifier would have to see through the command
   environment tuple which is more complicated.

-}

hsGroupBinders :: HsGroup GhcRn -> [Name]
hsGroupBinders :: HsGroup (GhcPass 'Renamed) -> [Name]
hsGroupBinders (HsGroup { hs_valds :: forall p. HsGroup p -> HsValBinds p
hs_valds = HsValBinds (GhcPass 'Renamed)
val_decls, hs_tyclds :: forall p. HsGroup p -> [TyClGroup p]
hs_tyclds = [TyClGroup (GhcPass 'Renamed)]
tycl_decls,
                          hs_fords :: forall p. HsGroup p -> [LForeignDecl p]
hs_fords = [LForeignDecl (GhcPass 'Renamed)]
foreign_decls })
  =  forall (idL :: Pass) (idR :: Pass).
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> HsValBindsLR (GhcPass idL) (GhcPass idR) -> [IdP (GhcPass idL)]
collectHsValBinders forall p. CollectFlag p
CollNoDictBinders HsValBinds (GhcPass 'Renamed)
val_decls
  forall a. [a] -> [a] -> [a]
++ [TyClGroup (GhcPass 'Renamed)]
-> [LForeignDecl (GhcPass 'Renamed)] -> [Name]
hsTyClForeignBinders [TyClGroup (GhcPass 'Renamed)]
tycl_decls [LForeignDecl (GhcPass 'Renamed)]
foreign_decls

hsTyClForeignBinders :: [TyClGroup GhcRn]
                     -> [LForeignDecl GhcRn]
                     -> [Name]
-- We need to look at instance declarations too,
-- because their associated types may bind data constructors
hsTyClForeignBinders :: [TyClGroup (GhcPass 'Renamed)]
-> [LForeignDecl (GhcPass 'Renamed)] -> [Name]
hsTyClForeignBinders [TyClGroup (GhcPass 'Renamed)]
tycl_decls [LForeignDecl (GhcPass 'Renamed)]
foreign_decls
  =    forall a b. (a -> b) -> [a] -> [b]
map forall l e. GenLocated l e -> e
unLoc (forall (p :: Pass) a.
(UnXRec (GhcPass p), IsSrcSpanAnn p a) =>
[LForeignDecl (GhcPass p)] -> [LIdP (GhcPass p)]
hsForeignDeclsBinders [LForeignDecl (GhcPass 'Renamed)]
foreign_decls)
    forall a. [a] -> [a] -> [a]
++ ([LocatedA Name], [LFieldOcc (GhcPass 'Renamed)]) -> [Name]
getSelectorNames
         (forall (t :: * -> *) m a.
(Foldable t, Monoid m) =>
(a -> m) -> t a -> m
foldMap (forall (t :: * -> *) m a.
(Foldable t, Monoid m) =>
(a -> m) -> t a -> m
foldMap forall (p :: Pass).
IsPass p =>
LocatedA (TyClDecl (GhcPass p))
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsLTyClDeclBinders forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall pass. TyClGroup pass -> [LTyClDecl pass]
group_tyclds) [TyClGroup (GhcPass 'Renamed)]
tycl_decls
         forall a. Monoid a => a -> a -> a
`mappend`
         forall (t :: * -> *) m a.
(Foldable t, Monoid m) =>
(a -> m) -> t a -> m
foldMap (forall (t :: * -> *) m a.
(Foldable t, Monoid m) =>
(a -> m) -> t a -> m
foldMap forall (p :: Pass).
IsPass p =>
LInstDecl (GhcPass p)
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsLInstDeclBinders forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall pass. TyClGroup pass -> [LInstDecl pass]
group_instds) [TyClGroup (GhcPass 'Renamed)]
tycl_decls)
  where
    getSelectorNames :: ([LocatedA Name], [LFieldOcc GhcRn]) -> [Name]
    getSelectorNames :: ([LocatedA Name], [LFieldOcc (GhcPass 'Renamed)]) -> [Name]
getSelectorNames ([LocatedA Name]
ns, [LFieldOcc (GhcPass 'Renamed)]
fs) = forall a b. (a -> b) -> [a] -> [b]
map forall l e. GenLocated l e -> e
unLoc [LocatedA Name]
ns forall a. [a] -> [a] -> [a]
++ forall a b. (a -> b) -> [a] -> [b]
map (forall pass. FieldOcc pass -> XCFieldOcc pass
extFieldOcc forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) [LFieldOcc (GhcPass 'Renamed)]
fs

-------------------
hsLTyClDeclBinders :: IsPass p
                   => LocatedA (TyClDecl (GhcPass p))
                   -> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
-- ^ Returns all the /binding/ names of the decl.  The first one is
-- guaranteed to be the name of the decl. The first component
-- represents all binding names except record fields; the second
-- represents field occurrences. For record fields mentioned in
-- multiple constructors, the SrcLoc will be from the first occurrence.
--
-- Each returned (Located name) has a SrcSpan for the /whole/ declaration.
-- See Note [SrcSpan for binders]

hsLTyClDeclBinders :: forall (p :: Pass).
IsPass p =>
LocatedA (TyClDecl (GhcPass p))
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsLTyClDeclBinders (L SrcSpanAnnA
loc (FamDecl { tcdFam :: forall pass. TyClDecl pass -> FamilyDecl pass
tcdFam = FamilyDecl
                                            { fdLName :: forall pass. FamilyDecl pass -> LIdP pass
fdLName = (L Anno (IdGhcP p)
_ IdGhcP p
name) } }))
  = ([forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc IdGhcP p
name], [])
hsLTyClDeclBinders (L SrcSpanAnnA
loc (SynDecl
                               { tcdLName :: forall pass. TyClDecl pass -> LIdP pass
tcdLName = (L Anno (IdGhcP p)
_ IdGhcP p
name) }))
  = ([forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc IdGhcP p
name], [])
hsLTyClDeclBinders (L SrcSpanAnnA
loc (ClassDecl
                               { tcdLName :: forall pass. TyClDecl pass -> LIdP pass
tcdLName = (L Anno (IdGhcP p)
_ IdGhcP p
cls_name)
                               , tcdSigs :: forall pass. TyClDecl pass -> [LSig pass]
tcdSigs  = [LSig (GhcPass p)]
sigs
                               , tcdATs :: forall pass. TyClDecl pass -> [LFamilyDecl pass]
tcdATs   = [LFamilyDecl (GhcPass p)]
ats }))
  = (forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc IdGhcP p
cls_name forall a. a -> [a] -> [a]
:
     [ forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
fam_loc IdGhcP p
fam_name | (L SrcSpanAnnA
fam_loc (FamilyDecl
                                        { fdLName :: forall pass. FamilyDecl pass -> LIdP pass
fdLName = L Anno (IdGhcP p)
_ IdGhcP p
fam_name })) <- [LFamilyDecl (GhcPass p)]
ats ]
     forall a. [a] -> [a] -> [a]
++
     [ forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
mem_loc IdGhcP p
mem_name
                          | (L SrcSpanAnnA
mem_loc (ClassOpSig XClassOpSig (GhcPass p)
_ Bool
False [LIdP (GhcPass p)]
ns LHsSigType (GhcPass p)
_)) <- [LSig (GhcPass p)]
sigs
                          , (L Anno (IdGhcP p)
_ IdGhcP p
mem_name) <- [LIdP (GhcPass p)]
ns ]
    , [])
hsLTyClDeclBinders (L SrcSpanAnnA
loc (DataDecl    { tcdLName :: forall pass. TyClDecl pass -> LIdP pass
tcdLName = (L Anno (IdGhcP p)
_ IdGhcP p
name)
                                       , tcdDataDefn :: forall pass. TyClDecl pass -> HsDataDefn pass
tcdDataDefn = HsDataDefn (GhcPass p)
defn }))
  = (\ ([GenLocated SrcSpanAnnA (IdGhcP p)]
xs, [GenLocated SrcSpan (FieldOcc (GhcPass p))]
ys) -> (forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc IdGhcP p
name forall a. a -> [a] -> [a]
: [GenLocated SrcSpanAnnA (IdGhcP p)]
xs, [GenLocated SrcSpan (FieldOcc (GhcPass p))]
ys)) forall a b. (a -> b) -> a -> b
$ forall (p :: Pass).
IsPass p =>
HsDataDefn (GhcPass p)
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsDataDefnBinders HsDataDefn (GhcPass p)
defn


-------------------
hsForeignDeclsBinders :: forall p a. (UnXRec (GhcPass p), IsSrcSpanAnn p a)
                      => [LForeignDecl (GhcPass p)] -> [LIdP (GhcPass p)]
-- ^ See Note [SrcSpan for binders]
hsForeignDeclsBinders :: forall (p :: Pass) a.
(UnXRec (GhcPass p), IsSrcSpanAnn p a) =>
[LForeignDecl (GhcPass p)] -> [LIdP (GhcPass p)]
hsForeignDeclsBinders [LForeignDecl (GhcPass p)]
foreign_decls
  = [ forall l e. l -> e -> GenLocated l e
L (forall ann. SrcSpan -> SrcAnn ann
noAnnSrcSpan (forall a. SrcSpanAnn' a -> SrcSpan
locA SrcSpanAnnA
decl_loc)) IdGhcP p
n
    | L SrcSpanAnnA
decl_loc (ForeignImport { fd_name :: forall pass. ForeignDecl pass -> LIdP pass
fd_name = L SrcSpanAnn' (EpAnn a)
_ IdGhcP p
n })
        <- [LForeignDecl (GhcPass p)]
foreign_decls]


-------------------
hsPatSynSelectors :: IsPass p => HsValBinds (GhcPass p) -> [FieldOcc (GhcPass p)]
-- ^ Collects record pattern-synonym selectors only; the pattern synonym
-- names are collected by 'collectHsValBinders'.
hsPatSynSelectors :: forall (p :: Pass).
IsPass p =>
HsValBinds (GhcPass p) -> [FieldOcc (GhcPass p)]
hsPatSynSelectors (ValBinds XValBinds (GhcPass p) (GhcPass p)
_ LHsBindsLR (GhcPass p) (GhcPass p)
_ [LSig (GhcPass p)]
_) = forall a. String -> a
panic String
"hsPatSynSelectors"
hsPatSynSelectors (XValBindsLR (NValBinds [(RecFlag, LHsBindsLR (GhcPass p) (GhcPass p))]
binds [LSig (GhcPass 'Renamed)]
_))
  = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr forall p. UnXRec p => LHsBind p -> [FieldOcc p] -> [FieldOcc p]
addPatSynSelector [] forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a. [Bag a] -> Bag a
unionManyBags forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map forall a b. (a, b) -> b
snd [(RecFlag, LHsBindsLR (GhcPass p) (GhcPass p))]
binds

addPatSynSelector :: forall p. UnXRec p => LHsBind p -> [FieldOcc p] -> [FieldOcc p]
addPatSynSelector :: forall p. UnXRec p => LHsBind p -> [FieldOcc p] -> [FieldOcc p]
addPatSynSelector LHsBind p
bind [FieldOcc p]
sels
  | PatSynBind XPatSynBind p p
_ (PSB { psb_args :: forall idL idR. PatSynBind idL idR -> HsPatSynDetails idR
psb_args = RecCon [RecordPatSynField p]
as }) <- forall p a. UnXRec p => XRec p a -> a
unXRec @p LHsBind p
bind
  = forall a b. (a -> b) -> [a] -> [b]
map forall pass. RecordPatSynField pass -> FieldOcc pass
recordPatSynField [RecordPatSynField p]
as forall a. [a] -> [a] -> [a]
++ [FieldOcc p]
sels
  | Bool
otherwise = [FieldOcc p]
sels

getPatSynBinds :: forall id. UnXRec id
               => [(RecFlag, LHsBinds id)] -> [PatSynBind id id]
getPatSynBinds :: forall id.
UnXRec id =>
[(RecFlag, LHsBinds id)] -> [PatSynBind id id]
getPatSynBinds [(RecFlag, LHsBinds id)]
binds
  = [ PatSynBind id id
psb | (RecFlag
_, LHsBinds id
lbinds) <- [(RecFlag, LHsBinds id)]
binds
          , (forall p a. UnXRec p => XRec p a -> a
unXRec @id -> (PatSynBind XPatSynBind id id
_ PatSynBind id id
psb)) <- forall a. Bag a -> [a]
bagToList LHsBinds id
lbinds ]

-------------------
hsLInstDeclBinders :: IsPass p
                   => LInstDecl (GhcPass p)
                   -> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsLInstDeclBinders :: forall (p :: Pass).
IsPass p =>
LInstDecl (GhcPass p)
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsLInstDeclBinders (L SrcSpanAnnA
_ (ClsInstD
                             { cid_inst :: forall pass. InstDecl pass -> ClsInstDecl pass
cid_inst = ClsInstDecl
                                          { cid_datafam_insts :: forall pass. ClsInstDecl pass -> [LDataFamInstDecl pass]
cid_datafam_insts = [LDataFamInstDecl (GhcPass p)]
dfis }}))
  = forall (t :: * -> *) m a.
(Foldable t, Monoid m) =>
(a -> m) -> t a -> m
foldMap (forall (p :: Pass).
IsPass p =>
DataFamInstDecl (GhcPass p)
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsDataFamInstBinders forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) [LDataFamInstDecl (GhcPass p)]
dfis
hsLInstDeclBinders (L SrcSpanAnnA
_ (DataFamInstD { dfid_inst :: forall pass. InstDecl pass -> DataFamInstDecl pass
dfid_inst = DataFamInstDecl (GhcPass p)
fi }))
  = forall (p :: Pass).
IsPass p =>
DataFamInstDecl (GhcPass p)
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsDataFamInstBinders DataFamInstDecl (GhcPass p)
fi
hsLInstDeclBinders (L SrcSpanAnnA
_ (TyFamInstD {})) = forall a. Monoid a => a
mempty

-------------------
-- | the 'SrcLoc' returned are for the whole declarations, not just the names
hsDataFamInstBinders :: IsPass p
                     => DataFamInstDecl (GhcPass p)
                     -> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsDataFamInstBinders :: forall (p :: Pass).
IsPass p =>
DataFamInstDecl (GhcPass p)
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsDataFamInstBinders (DataFamInstDecl { dfid_eqn :: forall pass. DataFamInstDecl pass -> FamEqn pass (HsDataDefn pass)
dfid_eqn = FamEqn { feqn_rhs :: forall pass rhs. FamEqn pass rhs -> rhs
feqn_rhs = HsDataDefn (GhcPass p)
defn }})
  = forall (p :: Pass).
IsPass p =>
HsDataDefn (GhcPass p)
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsDataDefnBinders HsDataDefn (GhcPass p)
defn
  -- There can't be repeated symbols because only data instances have binders

-------------------
-- | the 'SrcLoc' returned are for the whole declarations, not just the names
hsDataDefnBinders :: IsPass p
                  => HsDataDefn (GhcPass p)
                  -> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsDataDefnBinders :: forall (p :: Pass).
IsPass p =>
HsDataDefn (GhcPass p)
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsDataDefnBinders (HsDataDefn { dd_cons :: forall pass. HsDataDefn pass -> [LConDecl pass]
dd_cons = [LConDecl (GhcPass p)]
cons })
  = forall (p :: Pass).
IsPass p =>
[LConDecl (GhcPass p)]
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsConDeclsBinders [LConDecl (GhcPass p)]
cons
  -- See Note [Binders in family instances]

-------------------
type Seen p = [LFieldOcc (GhcPass p)] -> [LFieldOcc (GhcPass p)]
                 -- Filters out ones that have already been seen

hsConDeclsBinders :: forall p. IsPass p
                  => [LConDecl (GhcPass p)]
                  -> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
   -- See hsLTyClDeclBinders for what this does
   -- The function is boringly complicated because of the records
   -- And since we only have equality, we have to be a little careful
hsConDeclsBinders :: forall (p :: Pass).
IsPass p =>
[LConDecl (GhcPass p)]
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
hsConDeclsBinders [LConDecl (GhcPass p)]
cons
  = Seen p
-> [LConDecl (GhcPass p)]
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
go forall a. a -> a
id [LConDecl (GhcPass p)]
cons
  where
    go :: Seen p -> [LConDecl (GhcPass p)]
       -> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
    go :: Seen p
-> [LConDecl (GhcPass p)]
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
go Seen p
_ [] = ([], [])
    go Seen p
remSeen (LConDecl (GhcPass p)
r:[LConDecl (GhcPass p)]
rs)
      -- Don't re-mangle the location of field names, because we don't
      -- have a record of the full location of the field declaration anyway
      = let loc :: SrcSpanAnnA
loc = forall l e. GenLocated l e -> l
getLoc LConDecl (GhcPass p)
r
        in case forall l e. GenLocated l e -> e
unLoc LConDecl (GhcPass p)
r of
           -- remove only the first occurrence of any seen field in order to
           -- avoid circumventing detection of duplicate fields (#9156)
           ConDeclGADT { con_names :: forall pass. ConDecl pass -> [LIdP pass]
con_names = [LIdP (GhcPass p)]
names, con_g_args :: forall pass. ConDecl pass -> HsConDeclGADTDetails pass
con_g_args = HsConDeclGADTDetails (GhcPass p)
args }
             -> (forall a b. (a -> b) -> [a] -> [b]
map (forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) [LIdP (GhcPass p)]
names forall a. [a] -> [a] -> [a]
++ [LocatedA (IdP (GhcPass p))]
ns, [LFieldOcc (GhcPass p)]
flds forall a. [a] -> [a] -> [a]
++ [LFieldOcc (GhcPass p)]
fs)
             where
                (Seen p
remSeen', [LFieldOcc (GhcPass p)]
flds) = Seen p
-> HsConDeclGADTDetails (GhcPass p)
-> (Seen p, [LFieldOcc (GhcPass p)])
get_flds_gadt Seen p
remSeen HsConDeclGADTDetails (GhcPass p)
args
                ([LocatedA (IdP (GhcPass p))]
ns, [LFieldOcc (GhcPass p)]
fs) = Seen p
-> [LConDecl (GhcPass p)]
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
go Seen p
remSeen' [LConDecl (GhcPass p)]
rs

           ConDeclH98 { con_name :: forall pass. ConDecl pass -> LIdP pass
con_name = LIdP (GhcPass p)
name, con_args :: forall pass. ConDecl pass -> HsConDeclH98Details pass
con_args = HsConDeclH98Details (GhcPass p)
args }
             -> ([forall l e. l -> e -> GenLocated l e
L SrcSpanAnnA
loc (forall l e. GenLocated l e -> e
unLoc LIdP (GhcPass p)
name)] forall a. [a] -> [a] -> [a]
++ [LocatedA (IdP (GhcPass p))]
ns, [LFieldOcc (GhcPass p)]
flds forall a. [a] -> [a] -> [a]
++ [LFieldOcc (GhcPass p)]
fs)
             where
                (Seen p
remSeen', [LFieldOcc (GhcPass p)]
flds) = Seen p
-> HsConDeclH98Details (GhcPass p)
-> (Seen p, [LFieldOcc (GhcPass p)])
get_flds_h98 Seen p
remSeen HsConDeclH98Details (GhcPass p)
args
                ([LocatedA (IdP (GhcPass p))]
ns, [LFieldOcc (GhcPass p)]
fs) = Seen p
-> [LConDecl (GhcPass p)]
-> ([LocatedA (IdP (GhcPass p))], [LFieldOcc (GhcPass p)])
go Seen p
remSeen' [LConDecl (GhcPass p)]
rs

    get_flds_h98 :: Seen p -> HsConDeclH98Details (GhcPass p)
                 -> (Seen p, [LFieldOcc (GhcPass p)])
    get_flds_h98 :: Seen p
-> HsConDeclH98Details (GhcPass p)
-> (Seen p, [LFieldOcc (GhcPass p)])
get_flds_h98 Seen p
remSeen (RecCon XRec (GhcPass p) [LConDeclField (GhcPass p)]
flds) = Seen p
-> LocatedL [LConDeclField (GhcPass p)]
-> (Seen p, [LFieldOcc (GhcPass p)])
get_flds Seen p
remSeen XRec (GhcPass p) [LConDeclField (GhcPass p)]
flds
    get_flds_h98 Seen p
remSeen HsConDeclH98Details (GhcPass p)
_ = (Seen p
remSeen, [])

    get_flds_gadt :: Seen p -> HsConDeclGADTDetails (GhcPass p)
                  -> (Seen p, [LFieldOcc (GhcPass p)])
    get_flds_gadt :: Seen p
-> HsConDeclGADTDetails (GhcPass p)
-> (Seen p, [LFieldOcc (GhcPass p)])
get_flds_gadt Seen p
remSeen (RecConGADT XRec (GhcPass p) [LConDeclField (GhcPass p)]
flds) = Seen p
-> LocatedL [LConDeclField (GhcPass p)]
-> (Seen p, [LFieldOcc (GhcPass p)])
get_flds Seen p
remSeen XRec (GhcPass p) [LConDeclField (GhcPass p)]
flds
    get_flds_gadt Seen p
remSeen HsConDeclGADTDetails (GhcPass p)
_ = (Seen p
remSeen, [])

    get_flds :: Seen p -> LocatedL [LConDeclField (GhcPass p)]
             -> (Seen p, [LFieldOcc (GhcPass p)])
    get_flds :: Seen p
-> LocatedL [LConDeclField (GhcPass p)]
-> (Seen p, [LFieldOcc (GhcPass p)])
get_flds Seen p
remSeen LocatedL [LConDeclField (GhcPass p)]
flds = ([GenLocated SrcSpan (FieldOcc (GhcPass p))]
-> [GenLocated SrcSpan (FieldOcc (GhcPass p))]
remSeen', [LFieldOcc (GhcPass p)]
fld_names)
       where
          fld_names :: [LFieldOcc (GhcPass p)]
fld_names = Seen p
remSeen (forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (forall pass. ConDeclField pass -> [LFieldOcc pass]
cd_fld_names forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) (forall l e. GenLocated l e -> e
unLoc LocatedL [LConDeclField (GhcPass p)]
flds))
          remSeen' :: [GenLocated SrcSpan (FieldOcc (GhcPass p))]
-> [GenLocated SrcSpan (FieldOcc (GhcPass p))]
remSeen' = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr forall b c a. (b -> c) -> (a -> b) -> a -> c
(.) Seen p
remSeen
                               [forall a. (a -> a -> Bool) -> a -> [a] -> [a]
deleteBy (forall a. Eq a => a -> a -> Bool
(==) forall b c a. (b -> b -> c) -> (a -> b) -> a -> a -> c
`on` forall l e. GenLocated l e -> e
unLoc forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall pass. FieldOcc pass -> LocatedN RdrName
rdrNameFieldOcc forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) GenLocated SrcSpan (FieldOcc (GhcPass p))
v
                               | GenLocated SrcSpan (FieldOcc (GhcPass p))
v <- [LFieldOcc (GhcPass p)]
fld_names]

{-

Note [SrcSpan for binders]
~~~~~~~~~~~~~~~~~~~~~~~~~~
When extracting the (Located RdrNme) for a binder, at least for the
main name (the TyCon of a type declaration etc), we want to give it
the @SrcSpan@ of the whole /declaration/, not just the name itself
(which is how it appears in the syntax tree).  This SrcSpan (for the
entire declaration) is used as the SrcSpan for the Name that is
finally produced, and hence for error messages.  (See #8607.)

Note [Binders in family instances]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In a type or data family instance declaration, the type
constructor is an *occurrence* not a binding site
    type instance T Int = Int -> Int   -- No binders
    data instance S Bool = S1 | S2     -- Binders are S1,S2


************************************************************************
*                                                                      *
        Collecting binders the user did not write
*                                                                      *
************************************************************************

The job of this family of functions is to run through binding sites and find the set of all Names
that were defined "implicitly", without being explicitly written by the user.

The main purpose is to find names introduced by record wildcards so that we can avoid
warning the user when they don't use those names (#4404)

Since the addition of -Wunused-record-wildcards, this function returns a pair
of [(SrcSpan, [Name])]. Each element of the list is one set of implicit
binders, the first component of the tuple is the document describes the possible
fix to the problem (by removing the ..).

This means there is some unfortunate coupling between this function and where it
is used but it's only used for one specific purpose in one place so it seemed
easier.
-}

lStmtsImplicits :: [LStmtLR GhcRn (GhcPass idR) (LocatedA (body (GhcPass idR)))]
                -> [(SrcSpan, [Name])]
lStmtsImplicits :: forall (idR :: Pass) (body :: * -> *).
[LStmtLR
   (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))]
-> [(SrcSpan, [Name])]
lStmtsImplicits = forall (idR :: Pass) (body :: * -> *).
[LStmtLR
   (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))]
-> [(SrcSpan, [Name])]
hs_lstmts
  where
    hs_lstmts :: [LStmtLR GhcRn (GhcPass idR) (LocatedA (body (GhcPass idR)))]
              -> [(SrcSpan, [Name])]
    hs_lstmts :: forall (idR :: Pass) (body :: * -> *).
[LStmtLR
   (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))]
-> [(SrcSpan, [Name])]
hs_lstmts = forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (forall (idR :: Pass) (body :: * -> *).
StmtLR
  (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))
-> [(SrcSpan, [Name])]
hs_stmt forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc)

    hs_stmt :: StmtLR GhcRn (GhcPass idR) (LocatedA (body (GhcPass idR)))
            -> [(SrcSpan, [Name])]
    hs_stmt :: forall (idR :: Pass) (body :: * -> *).
StmtLR
  (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))
-> [(SrcSpan, [Name])]
hs_stmt (BindStmt XBindStmt
  (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))
_ LPat (GhcPass 'Renamed)
pat LocatedA (body (GhcPass idR))
_) = LPat (GhcPass 'Renamed) -> [(SrcSpan, [Name])]
lPatImplicits LPat (GhcPass 'Renamed)
pat
    hs_stmt (ApplicativeStmt XApplicativeStmt
  (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))
_ [(SyntaxExpr (GhcPass idR), ApplicativeArg (GhcPass 'Renamed))]
args Maybe (SyntaxExpr (GhcPass idR))
_) = forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap forall {a}.
(a, ApplicativeArg (GhcPass 'Renamed)) -> [(SrcSpan, [Name])]
do_arg [(SyntaxExpr (GhcPass idR), ApplicativeArg (GhcPass 'Renamed))]
args
      where do_arg :: (a, ApplicativeArg (GhcPass 'Renamed)) -> [(SrcSpan, [Name])]
do_arg (a
_, ApplicativeArgOne { app_arg_pattern :: forall idL. ApplicativeArg idL -> LPat idL
app_arg_pattern = LPat (GhcPass 'Renamed)
pat }) = LPat (GhcPass 'Renamed) -> [(SrcSpan, [Name])]
lPatImplicits LPat (GhcPass 'Renamed)
pat
            do_arg (a
_, ApplicativeArgMany { app_stmts :: forall idL. ApplicativeArg idL -> [ExprLStmt idL]
app_stmts = [ExprLStmt (GhcPass 'Renamed)]
stmts }) = forall (idR :: Pass) (body :: * -> *).
[LStmtLR
   (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))]
-> [(SrcSpan, [Name])]
hs_lstmts [ExprLStmt (GhcPass 'Renamed)]
stmts
    hs_stmt (LetStmt XLetStmt
  (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))
_ HsLocalBindsLR (GhcPass 'Renamed) (GhcPass idR)
binds)     = forall {idR :: Pass}.
HsLocalBindsLR (GhcPass 'Renamed) (GhcPass idR)
-> [(SrcSpan, [Name])]
hs_local_binds HsLocalBindsLR (GhcPass 'Renamed) (GhcPass idR)
binds
    hs_stmt (BodyStmt {})         = []
    hs_stmt (LastStmt {})         = []
    hs_stmt (ParStmt XParStmt
  (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))
_ [ParStmtBlock (GhcPass 'Renamed) (GhcPass idR)]
xs HsExpr (GhcPass idR)
_ SyntaxExpr (GhcPass idR)
_)    = forall (idR :: Pass) (body :: * -> *).
[LStmtLR
   (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))]
-> [(SrcSpan, [Name])]
hs_lstmts [GenLocated
  SrcSpanAnnA
  (StmtLR
     (GhcPass 'Renamed)
     (GhcPass 'Renamed)
     (LocatedA (HsExpr (GhcPass 'Renamed))))
s | ParStmtBlock XParStmtBlock (GhcPass 'Renamed) (GhcPass idR)
_ [ExprLStmt (GhcPass 'Renamed)]
ss [IdP (GhcPass idR)]
_ SyntaxExpr (GhcPass idR)
_ <- [ParStmtBlock (GhcPass 'Renamed) (GhcPass idR)]
xs
                                                , GenLocated
  SrcSpanAnnA
  (StmtLR
     (GhcPass 'Renamed)
     (GhcPass 'Renamed)
     (LocatedA (HsExpr (GhcPass 'Renamed))))
s <- [ExprLStmt (GhcPass 'Renamed)]
ss]
    hs_stmt (TransStmt { trS_stmts :: forall idL idR body. StmtLR idL idR body -> [ExprLStmt idL]
trS_stmts = [ExprLStmt (GhcPass 'Renamed)]
stmts }) = forall (idR :: Pass) (body :: * -> *).
[LStmtLR
   (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))]
-> [(SrcSpan, [Name])]
hs_lstmts [ExprLStmt (GhcPass 'Renamed)]
stmts
    hs_stmt (RecStmt { recS_stmts :: forall idL idR body.
StmtLR idL idR body -> XRec idR [LStmtLR idL idR body]
recS_stmts = L Anno
  [GenLocated
     (Anno
        (StmtLR
           (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))))
     (StmtLR
        (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR))))]
_ [GenLocated
   (Anno
      (StmtLR
         (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))))
   (StmtLR
      (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR))))]
ss }) = forall (idR :: Pass) (body :: * -> *).
[LStmtLR
   (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))]
-> [(SrcSpan, [Name])]
hs_lstmts [GenLocated
   (Anno
      (StmtLR
         (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR)))))
   (StmtLR
      (GhcPass 'Renamed) (GhcPass idR) (LocatedA (body (GhcPass idR))))]
ss

    hs_local_binds :: HsLocalBindsLR (GhcPass 'Renamed) (GhcPass idR)
-> [(SrcSpan, [Name])]
hs_local_binds (HsValBinds XHsValBinds (GhcPass 'Renamed) (GhcPass idR)
_ HsValBindsLR (GhcPass 'Renamed) (GhcPass idR)
val_binds) = forall (idR :: Pass).
HsValBindsLR (GhcPass 'Renamed) (GhcPass idR)
-> [(SrcSpan, [Name])]
hsValBindsImplicits HsValBindsLR (GhcPass 'Renamed) (GhcPass idR)
val_binds
    hs_local_binds (HsIPBinds {})           = []
    hs_local_binds (EmptyLocalBinds XEmptyLocalBinds (GhcPass 'Renamed) (GhcPass idR)
_)      = []

hsValBindsImplicits :: HsValBindsLR GhcRn (GhcPass idR) -> [(SrcSpan, [Name])]
hsValBindsImplicits :: forall (idR :: Pass).
HsValBindsLR (GhcPass 'Renamed) (GhcPass idR)
-> [(SrcSpan, [Name])]
hsValBindsImplicits (XValBindsLR (NValBinds [(RecFlag, LHsBinds (GhcPass 'Renamed))]
binds [LSig (GhcPass 'Renamed)]
_))
  = forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (forall idR.
LHsBindsLR (GhcPass 'Renamed) idR -> [(SrcSpan, [Name])]
lhsBindsImplicits forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a, b) -> b
snd) [(RecFlag, LHsBinds (GhcPass 'Renamed))]
binds
hsValBindsImplicits (ValBinds XValBinds (GhcPass 'Renamed) (GhcPass idR)
_ LHsBindsLR (GhcPass 'Renamed) (GhcPass idR)
binds [LSig (GhcPass idR)]
_)
  = forall idR.
LHsBindsLR (GhcPass 'Renamed) idR -> [(SrcSpan, [Name])]
lhsBindsImplicits LHsBindsLR (GhcPass 'Renamed) (GhcPass idR)
binds

lhsBindsImplicits :: LHsBindsLR GhcRn idR -> [(SrcSpan, [Name])]
lhsBindsImplicits :: forall idR.
LHsBindsLR (GhcPass 'Renamed) idR -> [(SrcSpan, [Name])]
lhsBindsImplicits = forall r a. (r -> r -> r) -> (a -> r) -> r -> Bag a -> r
foldBag forall a. [a] -> [a] -> [a]
(++) (forall {idR}.
HsBindLR (GhcPass 'Renamed) idR -> [(SrcSpan, [Name])]
lhs_bind forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) []
  where
    lhs_bind :: HsBindLR (GhcPass 'Renamed) idR -> [(SrcSpan, [Name])]
lhs_bind (PatBind { pat_lhs :: forall idL idR. HsBindLR idL idR -> LPat idL
pat_lhs = LPat (GhcPass 'Renamed)
lpat }) = LPat (GhcPass 'Renamed) -> [(SrcSpan, [Name])]
lPatImplicits LPat (GhcPass 'Renamed)
lpat
    lhs_bind HsBindLR (GhcPass 'Renamed) idR
_ = []

lPatImplicits :: LPat GhcRn -> [(SrcSpan, [Name])]
lPatImplicits :: LPat (GhcPass 'Renamed) -> [(SrcSpan, [Name])]
lPatImplicits = LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
-> [(SrcSpan, [Name])]
hs_lpat
  where
    hs_lpat :: LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
-> [(SrcSpan, [Name])]
hs_lpat LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
lpat = Pat (GhcPass 'Renamed) -> [(SrcSpan, [Name])]
hs_pat (forall l e. GenLocated l e -> e
unLoc LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
lpat)

    hs_lpats :: [LocatedAn AnnListItem (Pat (GhcPass 'Renamed))]
-> [(SrcSpan, [Name])]
hs_lpats = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr (\LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
pat [(SrcSpan, [Name])]
rest -> LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
-> [(SrcSpan, [Name])]
hs_lpat LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
pat forall a. [a] -> [a] -> [a]
++ [(SrcSpan, [Name])]
rest) []

    hs_pat :: Pat (GhcPass 'Renamed) -> [(SrcSpan, [Name])]
hs_pat (LazyPat XLazyPat (GhcPass 'Renamed)
_ LPat (GhcPass 'Renamed)
pat)      = LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
-> [(SrcSpan, [Name])]
hs_lpat LPat (GhcPass 'Renamed)
pat
    hs_pat (BangPat XBangPat (GhcPass 'Renamed)
_ LPat (GhcPass 'Renamed)
pat)      = LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
-> [(SrcSpan, [Name])]
hs_lpat LPat (GhcPass 'Renamed)
pat
    hs_pat (AsPat XAsPat (GhcPass 'Renamed)
_ LIdP (GhcPass 'Renamed)
_ LPat (GhcPass 'Renamed)
pat)      = LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
-> [(SrcSpan, [Name])]
hs_lpat LPat (GhcPass 'Renamed)
pat
    hs_pat (ViewPat XViewPat (GhcPass 'Renamed)
_ LHsExpr (GhcPass 'Renamed)
_ LPat (GhcPass 'Renamed)
pat)    = LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
-> [(SrcSpan, [Name])]
hs_lpat LPat (GhcPass 'Renamed)
pat
    hs_pat (ParPat XParPat (GhcPass 'Renamed)
_ LPat (GhcPass 'Renamed)
pat)       = LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
-> [(SrcSpan, [Name])]
hs_lpat LPat (GhcPass 'Renamed)
pat
    hs_pat (ListPat XListPat (GhcPass 'Renamed)
_ [LPat (GhcPass 'Renamed)]
pats)     = [LocatedAn AnnListItem (Pat (GhcPass 'Renamed))]
-> [(SrcSpan, [Name])]
hs_lpats [LPat (GhcPass 'Renamed)]
pats
    hs_pat (TuplePat XTuplePat (GhcPass 'Renamed)
_ [LPat (GhcPass 'Renamed)]
pats Boxity
_)  = [LocatedAn AnnListItem (Pat (GhcPass 'Renamed))]
-> [(SrcSpan, [Name])]
hs_lpats [LPat (GhcPass 'Renamed)]
pats

    hs_pat (SigPat XSigPat (GhcPass 'Renamed)
_ LPat (GhcPass 'Renamed)
pat HsPatSigType (NoGhcTc (GhcPass 'Renamed))
_)     = LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
-> [(SrcSpan, [Name])]
hs_lpat LPat (GhcPass 'Renamed)
pat

    hs_pat (ConPat {pat_con :: forall p. Pat p -> XRec p (ConLikeP p)
pat_con=XRec (GhcPass 'Renamed) (ConLikeP (GhcPass 'Renamed))
con, pat_args :: forall p. Pat p -> HsConPatDetails p
pat_args=HsConPatDetails (GhcPass 'Renamed)
ps}) = GenLocated SrcSpanAnnN Name
-> HsConPatDetails (GhcPass 'Renamed) -> [(SrcSpan, [Name])]
details XRec (GhcPass 'Renamed) (ConLikeP (GhcPass 'Renamed))
con HsConPatDetails (GhcPass 'Renamed)
ps

    hs_pat Pat (GhcPass 'Renamed)
_ = []

    details :: LocatedN Name -> HsConPatDetails GhcRn -> [(SrcSpan, [Name])]
    details :: GenLocated SrcSpanAnnN Name
-> HsConPatDetails (GhcPass 'Renamed) -> [(SrcSpan, [Name])]
details GenLocated SrcSpanAnnN Name
_ (PrefixCon [HsPatSigType (NoGhcTc (GhcPass 'Renamed))]
_ [LPat (GhcPass 'Renamed)]
ps) = [LocatedAn AnnListItem (Pat (GhcPass 'Renamed))]
-> [(SrcSpan, [Name])]
hs_lpats [LPat (GhcPass 'Renamed)]
ps
    details GenLocated SrcSpanAnnN Name
n (RecCon HsRecFields (GhcPass 'Renamed) (LPat (GhcPass 'Renamed))
fs)      =
      [(SrcSpan
err_loc, forall p. CollectPass p => CollectFlag p -> [LPat p] -> [IdP p]
collectPatsBinders forall p. CollectFlag p
CollNoDictBinders [LocatedAn AnnListItem (Pat (GhcPass 'Renamed))]
implicit_pats) | Just{} <- [forall p arg. HsRecFields p arg -> Maybe (Located Int)
rec_dotdot HsRecFields (GhcPass 'Renamed) (LPat (GhcPass 'Renamed))
fs] ]
        forall a. [a] -> [a] -> [a]
++ [LocatedAn AnnListItem (Pat (GhcPass 'Renamed))]
-> [(SrcSpan, [Name])]
hs_lpats [LocatedAn AnnListItem (Pat (GhcPass 'Renamed))]
explicit_pats

      where implicit_pats :: [LocatedAn AnnListItem (Pat (GhcPass 'Renamed))]
implicit_pats = forall a b. (a -> b) -> [a] -> [b]
map (forall id arg. HsRecField' id arg -> arg
hsRecFieldArg forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) [GenLocated
   SrcSpanAnnA
   (HsRecField'
      (FieldOcc (GhcPass 'Renamed))
      (LocatedAn AnnListItem (Pat (GhcPass 'Renamed))))]
implicit
            explicit_pats :: [LocatedAn AnnListItem (Pat (GhcPass 'Renamed))]
explicit_pats = forall a b. (a -> b) -> [a] -> [b]
map (forall id arg. HsRecField' id arg -> arg
hsRecFieldArg forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc) [GenLocated
   SrcSpanAnnA
   (HsRecField'
      (FieldOcc (GhcPass 'Renamed))
      (LocatedAn AnnListItem (Pat (GhcPass 'Renamed))))]
explicit


            ([GenLocated
   SrcSpanAnnA
   (HsRecField'
      (FieldOcc (GhcPass 'Renamed))
      (LocatedAn AnnListItem (Pat (GhcPass 'Renamed))))]
explicit, [GenLocated
   SrcSpanAnnA
   (HsRecField'
      (FieldOcc (GhcPass 'Renamed))
      (LocatedAn AnnListItem (Pat (GhcPass 'Renamed))))]
implicit) = forall a b. [Either a b] -> ([a], [b])
partitionEithers [if Bool
pat_explicit then forall a b. a -> Either a b
Left GenLocated
  SrcSpanAnnA
  (HsRecField'
     (FieldOcc (GhcPass 'Renamed))
     (LocatedAn AnnListItem (Pat (GhcPass 'Renamed))))
fld else forall a b. b -> Either a b
Right GenLocated
  SrcSpanAnnA
  (HsRecField'
     (FieldOcc (GhcPass 'Renamed))
     (LocatedAn AnnListItem (Pat (GhcPass 'Renamed))))
fld
                                                    | (Int
i, GenLocated
  SrcSpanAnnA
  (HsRecField'
     (FieldOcc (GhcPass 'Renamed))
     (LocatedAn AnnListItem (Pat (GhcPass 'Renamed))))
fld) <- [Int
0..] forall a b. [a] -> [b] -> [(a, b)]
`zip` forall p arg. HsRecFields p arg -> [LHsRecField p arg]
rec_flds HsRecFields (GhcPass 'Renamed) (LPat (GhcPass 'Renamed))
fs
                                                    ,  let  pat_explicit :: Bool
pat_explicit =
                                                              forall b a. b -> (a -> b) -> Maybe a -> b
maybe Bool
True ((Int
iforall a. Ord a => a -> a -> Bool
<) forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall l e. GenLocated l e -> e
unLoc)
                                                                         (forall p arg. HsRecFields p arg -> Maybe (Located Int)
rec_dotdot HsRecFields (GhcPass 'Renamed) (LPat (GhcPass 'Renamed))
fs)]
            err_loc :: SrcSpan
err_loc = forall b a. b -> (a -> b) -> Maybe a -> b
maybe (forall a e. GenLocated (SrcSpanAnn' a) e -> SrcSpan
getLocA GenLocated SrcSpanAnnN Name
n) forall l e. GenLocated l e -> l
getLoc (forall p arg. HsRecFields p arg -> Maybe (Located Int)
rec_dotdot HsRecFields (GhcPass 'Renamed) (LPat (GhcPass 'Renamed))
fs)

    details GenLocated SrcSpanAnnN Name
_ (InfixCon LPat (GhcPass 'Renamed)
p1 LPat (GhcPass 'Renamed)
p2) = LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
-> [(SrcSpan, [Name])]
hs_lpat LPat (GhcPass 'Renamed)
p1 forall a. [a] -> [a] -> [a]
++ LocatedAn AnnListItem (Pat (GhcPass 'Renamed))
-> [(SrcSpan, [Name])]
hs_lpat LPat (GhcPass 'Renamed)
p2