{-# LANGUAGE CPP #-}
{-# LANGUAGE ConstraintKinds #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE UndecidableInstances #-} -- Wrinkle in Note [Trees That Grow]
                                      -- in module Language.Haskell.Syntax.Extension

{-# OPTIONS_GHC -Wno-orphans #-} -- Outputable

{-
(c) The University of Glasgow 2006
(c) The GRASP/AQUA Project, Glasgow University, 1992-1998

\section[HsBinds]{Abstract syntax: top-level bindings and signatures}

Datatype for: @BindGroup@, @Bind@, @Sig@, @Bind@.
-}

module GHC.Hs.Binds
  ( module Language.Haskell.Syntax.Binds
  , module GHC.Hs.Binds
  ) where

import GHC.Prelude

import Language.Haskell.Syntax.Extension
import Language.Haskell.Syntax.Binds

import {-# SOURCE #-} GHC.Hs.Expr ( pprExpr, pprFunBind, pprPatBind )
import {-# SOURCE #-} GHC.Hs.Pat  (pprLPat )

import GHC.Types.Tickish
import GHC.Hs.Extension
import GHC.Parser.Annotation
import GHC.Hs.Type
import GHC.Tc.Types.Evidence
import GHC.Core.Type
import GHC.Types.Name.Set
import GHC.Types.Basic
import GHC.Types.SourceText
import GHC.Types.SrcLoc as SrcLoc
import GHC.Types.Var
import GHC.Data.Bag
import GHC.Data.BooleanFormula (LBooleanFormula)
import GHC.Types.Name.Reader
import GHC.Types.Name

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

import Data.Function
import Data.List (sortBy)
import Data.Data (Data)

{-
************************************************************************
*                                                                      *
\subsection{Bindings: @BindGroup@}
*                                                                      *
************************************************************************

Global bindings (where clauses)
-}

-- the ...LR datatypes are parameterized by two id types,
-- one for the left and one for the right.

type instance XHsValBinds      (GhcPass pL) (GhcPass pR) = EpAnn AnnList
type instance XHsIPBinds       (GhcPass pL) (GhcPass pR) = EpAnn AnnList
type instance XEmptyLocalBinds (GhcPass pL) (GhcPass pR) = NoExtField
type instance XXHsLocalBindsLR (GhcPass pL) (GhcPass pR) = DataConCantHappen

-- ---------------------------------------------------------------------
-- Deal with ValBindsOut

-- TODO: make this the only type for ValBinds
data NHsValBindsLR idL
  = NValBinds
      [(RecFlag, LHsBinds idL)]
      [LSig GhcRn]

type instance XValBinds    (GhcPass pL) (GhcPass pR) = AnnSortKey
type instance XXValBindsLR (GhcPass pL) pR
            = NHsValBindsLR (GhcPass pL)

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

type instance XFunBind    (GhcPass pL) GhcPs = NoExtField
type instance XFunBind    (GhcPass pL) GhcRn = NameSet
-- ^ After the renamer (but before the type-checker), the FunBind
-- extension field contains the locally-bound free variables of this
-- defn. See Note [Bind free vars]

type instance XFunBind    (GhcPass pL) GhcTc = (HsWrapper, [CoreTickish])
-- ^ After the type-checker, the FunBind extension field contains
-- the ticks to put on the rhs, if any, and a coercion from the
-- type of the MatchGroup to the type of the Id.
-- Example:
--
-- @
--      f :: Int -> forall a. a -> a
--      f x y = y
-- @
--
-- Then the MatchGroup will have type (Int -> a' -> a')
-- (with a free type variable a').  The coercion will take
-- a CoreExpr of this type and convert it to a CoreExpr of
-- type         Int -> forall a'. a' -> a'
-- Notice that the coercion captures the free a'.

type instance XPatBind    GhcPs (GhcPass pR) = EpAnn [AddEpAnn]
type instance XPatBind    GhcRn (GhcPass pR) = NameSet -- See Note [Bind free vars]
type instance XPatBind    GhcTc (GhcPass pR) =
    ( Type                  -- Type of the GRHSs
    , ( [CoreTickish]       -- Ticks to put on the rhs, if any
      , [[CoreTickish]] ) ) -- and ticks to put on the bound variables.

type instance XVarBind (GhcPass pL) (GhcPass pR) = XVarBindGhc pL pR
type family XVarBindGhc pL pR where
  XVarBindGhc 'Typechecked 'Typechecked = NoExtField
  XVarBindGhc _     _                   = DataConCantHappen

type instance XPatSynBind (GhcPass pL) (GhcPass pR) = NoExtField

type instance XXHsBindsLR GhcPs pR = DataConCantHappen
type instance XXHsBindsLR GhcRn pR = DataConCantHappen
type instance XXHsBindsLR GhcTc pR = AbsBinds

type instance XPSB         (GhcPass idL) GhcPs = EpAnn [AddEpAnn]
type instance XPSB         (GhcPass idL) GhcRn = NameSet -- Post renaming, FVs. See Note [Bind free vars]
type instance XPSB         (GhcPass idL) GhcTc = NameSet

type instance XXPatSynBind (GhcPass idL) (GhcPass idR) = DataConCantHappen

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

-- | Typechecked, generalised bindings, used in the output to the type checker.
-- See Note [AbsBinds].
data AbsBinds = AbsBinds {
      AbsBinds -> [TyVar]
abs_tvs     :: [TyVar],
      AbsBinds -> [TyVar]
abs_ev_vars :: [EvVar],  -- ^ Includes equality constraints

     -- | AbsBinds only gets used when idL = idR after renaming,
     -- but these need to be idL's for the collect... code in HsUtil
     -- to have the right type
      AbsBinds -> [ABExport]
abs_exports :: [ABExport],

      -- | Evidence bindings
      -- Why a list? See "GHC.Tc.TyCl.Instance"
      -- Note [Typechecking plan for instance declarations]
      AbsBinds -> [TcEvBinds]
abs_ev_binds :: [TcEvBinds],

      -- | Typechecked user bindings
      AbsBinds -> LHsBinds GhcTc
abs_binds    :: LHsBinds GhcTc,

      AbsBinds -> Bool
abs_sig :: Bool  -- See Note [The abs_sig field of AbsBinds]
  }


        -- Consider (AbsBinds tvs ds [(ftvs, poly_f, mono_f) binds]
        --
        -- Creates bindings for (polymorphic, overloaded) poly_f
        -- in terms of monomorphic, non-overloaded mono_f
        --
        -- Invariants:
        --      1. 'binds' binds mono_f
        --      2. ftvs is a subset of tvs
        --      3. ftvs includes all tyvars free in ds
        --
        -- See Note [AbsBinds]

-- | Abstraction Bindings Export
data ABExport
  = ABE { ABExport -> TyVar
abe_poly      :: Id           -- ^ Any INLINE pragma is attached to this Id
        , ABExport -> TyVar
abe_mono      :: Id
        , ABExport -> HsWrapper
abe_wrap      :: HsWrapper    -- ^ See Note [ABExport wrapper]
             -- Shape: (forall abs_tvs. abs_ev_vars => abe_mono) ~ abe_poly
        , ABExport -> TcSpecPrags
abe_prags     :: TcSpecPrags  -- ^ SPECIALISE pragmas
        }

{-
Note [AbsBinds]
~~~~~~~~~~~~~~~
The AbsBinds constructor is used in the output of the type checker, to
record *typechecked* and *generalised* bindings.  Specifically

         AbsBinds { abs_tvs      = tvs
                  , abs_ev_vars  = [d1,d2]
                  , abs_exports  = [ABE { abe_poly = fp, abe_mono = fm
                                        , abe_wrap = fwrap }
                                    ABE { slly for g } ]
                  , abs_ev_binds = DBINDS
                  , abs_binds    = BIND[fm,gm] }

where 'BIND' binds the monomorphic Ids 'fm' and 'gm', means

        fp = fwrap [/\ tvs. \d1 d2. letrec { DBINDS        ]
                   [                       ; BIND[fm,gm] } ]
                   [                 in fm                 ]

        gp = ...same again, with gm instead of fm

The 'fwrap' is an impedance-matcher that typically does nothing; see
Note [ABExport wrapper].

This is a pretty bad translation, because it duplicates all the bindings.
So the desugarer tries to do a better job:

        fp = /\ [a,b] -> \ [d1,d2] -> case tp [a,b] [d1,d2] of
                                        (fm,gm) -> fm
        ..ditto for gp..

        tp = /\ [a,b] -> \ [d1,d2] -> letrec { DBINDS; BIND }
                                      in (fm,gm)

In general:

  * abs_tvs are the type variables over which the binding group is
    generalised
  * abs_ev_var are the evidence variables (usually dictionaries)
    over which the binding group is generalised
  * abs_binds are the monomorphic bindings
  * abs_ex_binds are the evidence bindings that wrap the abs_binds
  * abs_exports connects the monomorphic Ids bound by abs_binds
    with the polymorphic Ids bound by the AbsBinds itself.

For example, consider a module M, with this top-level binding, where
there is no type signature for M.reverse,
    M.reverse []     = []
    M.reverse (x:xs) = M.reverse xs ++ [x]

In Hindley-Milner, a recursive binding is typechecked with the
*recursive* uses being *monomorphic*.  So after typechecking *and*
desugaring we will get something like this

    M.reverse :: forall a. [a] -> [a]
      = /\a. letrec
                reverse :: [a] -> [a] = \xs -> case xs of
                                                []     -> []
                                                (x:xs) -> reverse xs ++ [x]
             in reverse

Notice that 'M.reverse' is polymorphic as expected, but there is a local
definition for plain 'reverse' which is *monomorphic*.  The type variable
'a' scopes over the entire letrec.

That's after desugaring.  What about after type checking but before
desugaring?  That's where AbsBinds comes in.  It looks like this:

   AbsBinds { abs_tvs     = [a]
            , abs_ev_vars = []
            , abs_exports = [ABE { abe_poly = M.reverse :: forall a. [a] -> [a],
                                 , abe_mono = reverse :: [a] -> [a]}]
            , abs_ev_binds = {}
            , abs_binds = { reverse :: [a] -> [a]
                               = \xs -> case xs of
                                            []     -> []
                                            (x:xs) -> reverse xs ++ [x] } }

Here,

  * abs_tvs says what type variables are abstracted over the binding
    group, just 'a' in this case.
  * abs_binds is the *monomorphic* bindings of the group
  * abs_exports describes how to get the polymorphic Id 'M.reverse'
    from the monomorphic one 'reverse'

Notice that the *original* function (the polymorphic one you thought
you were defining) appears in the abe_poly field of the
abs_exports. The bindings in abs_binds are for fresh, local, Ids with
a *monomorphic* Id.

If there is a group of mutually recursive (see Note [Polymorphic
recursion]) functions without type signatures, we get one AbsBinds
with the monomorphic versions of the bindings in abs_binds, and one
element of abe_exports for each variable bound in the mutually
recursive group.  This is true even for pattern bindings.  Example:
        (f,g) = (\x -> x, f)
After type checking we get
   AbsBinds { abs_tvs     = [a]
            , abs_exports = [ ABE { abe_poly = M.f :: forall a. a -> a
                                  , abe_mono = f :: a -> a }
                            , ABE { abe_poly = M.g :: forall a. a -> a
                                  , abe_mono = g :: a -> a }]
            , abs_binds = { (f,g) = (\x -> x, f) }

Note [Polymorphic recursion]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Consider
   Rec { f x = ...(g ef)...

       ; g :: forall a. [a] -> [a]
       ; g y = ...(f eg)...  }

These bindings /are/ mutually recursive (f calls g, and g calls f).
But we can use the type signature for g to break the recursion,
like this:

  1. Add g :: forall a. [a] -> [a] to the type environment

  2. Typecheck the definition of f, all by itself,
     including generalising it to find its most general
     type, say f :: forall b. b -> b -> [b]

  3. Extend the type environment with that type for f

  4. Typecheck the definition of g, all by itself,
     checking that it has the type claimed by its signature

Steps 2 and 4 each generate a separate AbsBinds, so we end
up with
   Rec { AbsBinds { ...for f ... }
       ; AbsBinds { ...for g ... } }

This approach allows both f and to call each other
polymorphically, even though only g has a signature.

We get an AbsBinds that encompasses multiple source-program
bindings only when
 * Each binding in the group has at least one binder that
   lacks a user type signature
 * The group forms a strongly connected component


Note [The abs_sig field of AbsBinds]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The abs_sig field supports a couple of special cases for bindings.
Consider

  x :: Num a => (# a, a #)
  x = (# 3, 4 #)

The general desugaring for AbsBinds would give

  x = /\a. \ ($dNum :: Num a) ->
      letrec xm = (# fromInteger $dNum 3, fromInteger $dNum 4 #) in
      xm

But that has an illegal let-binding for an unboxed tuple.  In this
case we'd prefer to generate the (more direct)

  x = /\ a. \ ($dNum :: Num a) ->
     (# fromInteger $dNum 3, fromInteger $dNum 4 #)

A similar thing happens with representation-polymorphic defns
(#11405):

  undef :: forall (r :: RuntimeRep) (a :: TYPE r). HasCallStack => a
  undef = error "undef"

Again, the vanilla desugaring gives a local let-binding for a
representation-polymorphic (undefm :: a), which is illegal.  But
again we can desugar without a let:

  undef = /\ a. \ (d:HasCallStack) -> error a d "undef"

The abs_sig field supports this direct desugaring, with no local
let-binding.  When abs_sig = True

 * the abs_binds is single FunBind

 * the abs_exports is a singleton

 * we have a complete type sig for binder
   and hence the abs_binds is non-recursive
   (it binds the mono_id but refers to the poly_id

These properties are exploited in GHC.HsToCore.Binds.dsAbsBinds to
generate code without a let-binding.

Note [ABExport wrapper]
~~~~~~~~~~~~~~~~~~~~~~~
Consider
   (f,g) = (\x.x, \y.y)
This ultimately desugars to something like this:
   tup :: forall a b. (a->a, b->b)
   tup = /\a b. (\x:a.x, \y:b.y)
   f :: forall a. a -> a
   f = /\a. case tup a Any of
               (fm::a->a,gm:Any->Any) -> fm
   ...similarly for g...

The abe_wrap field deals with impedance-matching between
    (/\a b. case tup a b of { (f,g) -> f })
and the thing we really want, which may have fewer type
variables.  The action happens in GHC.Tc.Gen.Bind.mkExport.

Note [Bind free vars]
~~~~~~~~~~~~~~~~~~~~~
The extension fields of FunBind, PatBind and PatSynBind at GhcRn records the free
variables of the definition.  It is used for the following purposes:

a) Dependency analysis prior to type checking
    (see GHC.Tc.Gen.Bind.tc_group)

b) Deciding whether we can do generalisation of the binding
    (see GHC.Tc.Gen.Bind.decideGeneralisationPlan)

c) Deciding whether the binding can be used in static forms
    (see GHC.Tc.Gen.Expr.checkClosedInStaticForm for the HsStatic case and
     GHC.Tc.Gen.Bind.isClosedBndrGroup).

Specifically,

  * it includes all free vars that are defined in this module
    (including top-level things and lexically scoped type variables)

  * it excludes imported vars; this is just to keep the set smaller

  * Before renaming, and after typechecking, the field is unused;
    it's just an error thunk
-}

instance (OutputableBndrId pl, OutputableBndrId pr)
        => Outputable (HsLocalBindsLR (GhcPass pl) (GhcPass pr)) where
  ppr :: HsLocalBindsLR (GhcPass pl) (GhcPass pr) -> SDoc
ppr (HsValBinds XHsValBinds (GhcPass pl) (GhcPass pr)
_ HsValBindsLR (GhcPass pl) (GhcPass pr)
bs)   = HsValBindsLR (GhcPass pl) (GhcPass pr) -> SDoc
forall a. Outputable a => a -> SDoc
ppr HsValBindsLR (GhcPass pl) (GhcPass pr)
bs
  ppr (HsIPBinds XHsIPBinds (GhcPass pl) (GhcPass pr)
_ HsIPBinds (GhcPass pr)
bs)    = HsIPBinds (GhcPass pr) -> SDoc
forall a. Outputable a => a -> SDoc
ppr HsIPBinds (GhcPass pr)
bs
  ppr (EmptyLocalBinds XEmptyLocalBinds (GhcPass pl) (GhcPass pr)
_) = SDoc
forall doc. IsOutput doc => doc
empty

instance (OutputableBndrId pl, OutputableBndrId pr)
        => Outputable (HsValBindsLR (GhcPass pl) (GhcPass pr)) where
  ppr :: HsValBindsLR (GhcPass pl) (GhcPass pr) -> SDoc
ppr (ValBinds XValBinds (GhcPass pl) (GhcPass pr)
_ LHsBindsLR (GhcPass pl) (GhcPass pr)
binds [LSig (GhcPass pr)]
sigs)
   = [SDoc] -> SDoc
pprDeclList (LHsBindsLR (GhcPass pl) (GhcPass pr)
-> [LSig (GhcPass pr)] -> [SDoc]
forall (idL :: Pass) (idR :: Pass) (id2 :: Pass).
(OutputableBndrId idL, OutputableBndrId idR,
 OutputableBndrId id2) =>
LHsBindsLR (GhcPass idL) (GhcPass idR)
-> [LSig (GhcPass id2)] -> [SDoc]
pprLHsBindsForUser LHsBindsLR (GhcPass pl) (GhcPass pr)
binds [LSig (GhcPass pr)]
sigs)

  ppr (XValBindsLR (NValBinds [(RecFlag, LHsBinds (GhcPass pl))]
sccs [LSig GhcRn]
sigs))
    = (Bool -> SDoc) -> SDoc
forall doc. IsOutput doc => (Bool -> doc) -> doc
getPprDebug ((Bool -> SDoc) -> SDoc) -> (Bool -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \case
        -- Print with sccs showing
        Bool
True  -> [SDoc] -> SDoc
forall doc. IsDoc doc => [doc] -> doc
vcat ((GenLocated SrcSpanAnnA (Sig GhcRn) -> SDoc)
-> [GenLocated SrcSpanAnnA (Sig GhcRn)] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map GenLocated SrcSpanAnnA (Sig GhcRn) -> SDoc
forall a. Outputable a => a -> SDoc
ppr [LSig GhcRn]
[GenLocated SrcSpanAnnA (Sig GhcRn)]
sigs) SDoc -> SDoc -> SDoc
forall doc. IsDoc doc => doc -> doc -> doc
$$ [SDoc] -> SDoc
forall doc. IsDoc doc => [doc] -> doc
vcat (((RecFlag,
  Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl))))
 -> SDoc)
-> [(RecFlag,
     Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl))))]
-> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map (RecFlag,
 Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl))))
-> SDoc
forall {idR :: Pass} {idL :: Pass}.
(OutputableBndr (IdGhcP idL), OutputableBndr (IdGhcP idR),
 OutputableBndr (IdGhcP (NoGhcTcPass idL)),
 OutputableBndr (IdGhcP (NoGhcTcPass idR)), IsPass idL, IsPass idR,
 Outputable (GenLocated (Anno (IdGhcP idL)) (IdGhcP idL)),
 Outputable (GenLocated (Anno (IdGhcP idR)) (IdGhcP idR)),
 Outputable
   (GenLocated
      (Anno (IdGhcP (NoGhcTcPass idL))) (IdGhcP (NoGhcTcPass idL))),
 Outputable
   (GenLocated
      (Anno (IdGhcP (NoGhcTcPass idR))) (IdGhcP (NoGhcTcPass idR)))) =>
(RecFlag,
 Bag
   (GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR))))
-> SDoc
ppr_scc [(RecFlag, LHsBinds (GhcPass pl))]
[(RecFlag,
  Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl))))]
sccs)
        Bool
False -> [SDoc] -> SDoc
pprDeclList (LHsBinds (GhcPass pl) -> [LSig GhcRn] -> [SDoc]
forall (idL :: Pass) (idR :: Pass) (id2 :: Pass).
(OutputableBndrId idL, OutputableBndrId idR,
 OutputableBndrId id2) =>
LHsBindsLR (GhcPass idL) (GhcPass idR)
-> [LSig (GhcPass id2)] -> [SDoc]
pprLHsBindsForUser ([Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl)))]
-> Bag
     (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl)))
forall a. [Bag a] -> Bag a
unionManyBags (((RecFlag,
  Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl))))
 -> Bag
      (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl))))
-> [(RecFlag,
     Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl))))]
-> [Bag
      (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl)))]
forall a b. (a -> b) -> [a] -> [b]
map (RecFlag,
 Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl))))
-> Bag
     (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl)))
forall a b. (a, b) -> b
snd [(RecFlag, LHsBinds (GhcPass pl))]
[(RecFlag,
  Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass pl) (GhcPass pl))))]
sccs)) [LSig GhcRn]
sigs)
   where
     ppr_scc :: (RecFlag,
 Bag
   (GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR))))
-> SDoc
ppr_scc (RecFlag
rec_flag, Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR)))
binds) = RecFlag -> SDoc
forall {doc}. IsLine doc => RecFlag -> doc
pp_rec RecFlag
rec_flag SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> LHsBindsLR (GhcPass idL) (GhcPass idR) -> SDoc
forall (idL :: Pass) (idR :: Pass).
(OutputableBndrId idL, OutputableBndrId idR) =>
LHsBindsLR (GhcPass idL) (GhcPass idR) -> SDoc
pprLHsBinds LHsBindsLR (GhcPass idL) (GhcPass idR)
Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR)))
binds
     pp_rec :: RecFlag -> doc
pp_rec RecFlag
Recursive    = String -> doc
forall doc. IsLine doc => String -> doc
text String
"rec"
     pp_rec RecFlag
NonRecursive = String -> doc
forall doc. IsLine doc => String -> doc
text String
"nonrec"

pprLHsBinds :: (OutputableBndrId idL, OutputableBndrId idR)
            => LHsBindsLR (GhcPass idL) (GhcPass idR) -> SDoc
pprLHsBinds :: forall (idL :: Pass) (idR :: Pass).
(OutputableBndrId idL, OutputableBndrId idR) =>
LHsBindsLR (GhcPass idL) (GhcPass idR) -> SDoc
pprLHsBinds LHsBindsLR (GhcPass idL) (GhcPass idR)
binds
  | LHsBindsLR (GhcPass idL) (GhcPass idR) -> Bool
forall (idL :: Pass) idR. LHsBindsLR (GhcPass idL) idR -> Bool
isEmptyLHsBinds LHsBindsLR (GhcPass idL) (GhcPass idR)
binds = SDoc
forall doc. IsOutput doc => doc
empty
  | Bool
otherwise = [SDoc] -> SDoc
pprDeclList ((GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR))
 -> SDoc)
-> [GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR))]
-> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR))
-> SDoc
forall a. Outputable a => a -> SDoc
ppr (Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR)))
-> [GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR))]
forall a. Bag a -> [a]
bagToList LHsBindsLR (GhcPass idL) (GhcPass idR)
Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR)))
binds))

pprLHsBindsForUser :: (OutputableBndrId idL,
                       OutputableBndrId idR,
                       OutputableBndrId id2)
     => LHsBindsLR (GhcPass idL) (GhcPass idR) -> [LSig (GhcPass id2)] -> [SDoc]
--  pprLHsBindsForUser is different to pprLHsBinds because
--  a) No braces: 'let' and 'where' include a list of HsBindGroups
--     and we don't want several groups of bindings each
--     with braces around
--  b) Sort by location before printing
--  c) Include signatures
pprLHsBindsForUser :: forall (idL :: Pass) (idR :: Pass) (id2 :: Pass).
(OutputableBndrId idL, OutputableBndrId idR,
 OutputableBndrId id2) =>
LHsBindsLR (GhcPass idL) (GhcPass idR)
-> [LSig (GhcPass id2)] -> [SDoc]
pprLHsBindsForUser LHsBindsLR (GhcPass idL) (GhcPass idR)
binds [LSig (GhcPass id2)]
sigs
  = ((SrcSpan, SDoc) -> SDoc) -> [(SrcSpan, SDoc)] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map (SrcSpan, SDoc) -> SDoc
forall a b. (a, b) -> b
snd ([(SrcSpan, SDoc)] -> [(SrcSpan, SDoc)]
forall {b}. [(SrcSpan, b)] -> [(SrcSpan, b)]
sort_by_loc [(SrcSpan, SDoc)]
decls)
  where

    decls :: [(SrcSpan, SDoc)]
    decls :: [(SrcSpan, SDoc)]
decls = [(SrcSpanAnnA -> SrcSpan
forall a. SrcSpanAnn' a -> SrcSpan
locA SrcSpanAnnA
loc, Sig (GhcPass id2) -> SDoc
forall a. Outputable a => a -> SDoc
ppr Sig (GhcPass id2)
sig)  | L SrcSpanAnnA
loc Sig (GhcPass id2)
sig <- [LSig (GhcPass id2)]
[GenLocated SrcSpanAnnA (Sig (GhcPass id2))]
sigs] [(SrcSpan, SDoc)] -> [(SrcSpan, SDoc)] -> [(SrcSpan, SDoc)]
forall a. [a] -> [a] -> [a]
++
            [(SrcSpanAnnA -> SrcSpan
forall a. SrcSpanAnn' a -> SrcSpan
locA SrcSpanAnnA
loc, HsBindLR (GhcPass idL) (GhcPass idR) -> SDoc
forall a. Outputable a => a -> SDoc
ppr HsBindLR (GhcPass idL) (GhcPass idR)
bind) | L SrcSpanAnnA
loc HsBindLR (GhcPass idL) (GhcPass idR)
bind <- Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR)))
-> [GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR))]
forall a. Bag a -> [a]
bagToList LHsBindsLR (GhcPass idL) (GhcPass idR)
Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass idL) (GhcPass idR)))
binds]

    sort_by_loc :: [(SrcSpan, b)] -> [(SrcSpan, b)]
sort_by_loc [(SrcSpan, b)]
decls = ((SrcSpan, b) -> (SrcSpan, b) -> Ordering)
-> [(SrcSpan, b)] -> [(SrcSpan, b)]
forall a. (a -> a -> Ordering) -> [a] -> [a]
sortBy (SrcSpan -> SrcSpan -> Ordering
SrcLoc.leftmost_smallest (SrcSpan -> SrcSpan -> Ordering)
-> ((SrcSpan, b) -> SrcSpan)
-> (SrcSpan, b)
-> (SrcSpan, b)
-> Ordering
forall b c a. (b -> b -> c) -> (a -> b) -> a -> a -> c
`on` (SrcSpan, b) -> SrcSpan
forall a b. (a, b) -> a
fst) [(SrcSpan, b)]
decls

pprDeclList :: [SDoc] -> SDoc   -- Braces with a space
-- Print a bunch of declarations
-- One could choose  { d1; d2; ... }, using 'sep'
-- or      d1
--         d2
--         ..
--    using vcat
-- At the moment we chose the latter
-- Also we do the 'pprDeeperList' thing.
pprDeclList :: [SDoc] -> SDoc
pprDeclList [SDoc]
ds = ([SDoc] -> SDoc) -> [SDoc] -> SDoc
pprDeeperList [SDoc] -> SDoc
forall doc. IsDoc doc => [doc] -> doc
vcat [SDoc]
ds

------------
emptyLocalBinds :: HsLocalBindsLR (GhcPass a) (GhcPass b)
emptyLocalBinds :: forall (a :: Pass) (b :: Pass).
HsLocalBindsLR (GhcPass a) (GhcPass b)
emptyLocalBinds = XEmptyLocalBinds (GhcPass a) (GhcPass b)
-> HsLocalBindsLR (GhcPass a) (GhcPass b)
forall idL idR. XEmptyLocalBinds idL idR -> HsLocalBindsLR idL idR
EmptyLocalBinds XEmptyLocalBinds (GhcPass a) (GhcPass b)
NoExtField
noExtField

eqEmptyLocalBinds :: HsLocalBindsLR a b -> Bool
eqEmptyLocalBinds :: forall a b. HsLocalBindsLR a b -> Bool
eqEmptyLocalBinds (EmptyLocalBinds XEmptyLocalBinds a b
_) = Bool
True
eqEmptyLocalBinds HsLocalBindsLR a b
_                   = Bool
False

isEmptyValBinds :: HsValBindsLR (GhcPass a) (GhcPass b) -> Bool
isEmptyValBinds :: forall (a :: Pass) (b :: Pass).
HsValBindsLR (GhcPass a) (GhcPass b) -> Bool
isEmptyValBinds (ValBinds XValBinds (GhcPass a) (GhcPass b)
_ LHsBindsLR (GhcPass a) (GhcPass b)
ds [LSig (GhcPass b)]
sigs)  = LHsBindsLR (GhcPass a) (GhcPass b) -> Bool
forall (idL :: Pass) idR. LHsBindsLR (GhcPass idL) idR -> Bool
isEmptyLHsBinds LHsBindsLR (GhcPass a) (GhcPass b)
ds Bool -> Bool -> Bool
&& [GenLocated SrcSpanAnnA (Sig (GhcPass b))] -> Bool
forall a. [a] -> Bool
forall (t :: * -> *) a. Foldable t => t a -> Bool
null [LSig (GhcPass b)]
[GenLocated SrcSpanAnnA (Sig (GhcPass b))]
sigs
isEmptyValBinds (XValBindsLR (NValBinds [(RecFlag, LHsBinds (GhcPass a))]
ds [LSig GhcRn]
sigs)) = [(RecFlag,
  Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a))))]
-> Bool
forall a. [a] -> Bool
forall (t :: * -> *) a. Foldable t => t a -> Bool
null [(RecFlag, LHsBinds (GhcPass a))]
[(RecFlag,
  Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a))))]
ds Bool -> Bool -> Bool
&& [GenLocated SrcSpanAnnA (Sig GhcRn)] -> Bool
forall a. [a] -> Bool
forall (t :: * -> *) a. Foldable t => t a -> Bool
null [LSig GhcRn]
[GenLocated SrcSpanAnnA (Sig GhcRn)]
sigs

emptyValBindsIn, emptyValBindsOut :: HsValBindsLR (GhcPass a) (GhcPass b)
emptyValBindsIn :: forall (a :: Pass) (b :: Pass).
HsValBindsLR (GhcPass a) (GhcPass b)
emptyValBindsIn  = XValBinds (GhcPass a) (GhcPass b)
-> LHsBindsLR (GhcPass a) (GhcPass b)
-> [LSig (GhcPass b)]
-> HsValBindsLR (GhcPass a) (GhcPass b)
forall idL idR.
XValBinds idL idR
-> LHsBindsLR idL idR -> [LSig idR] -> HsValBindsLR idL idR
ValBinds XValBinds (GhcPass a) (GhcPass b)
AnnSortKey
NoAnnSortKey LHsBindsLR (GhcPass a) (GhcPass b)
Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass b)))
forall a. Bag a
emptyBag []
emptyValBindsOut :: forall (a :: Pass) (b :: Pass).
HsValBindsLR (GhcPass a) (GhcPass b)
emptyValBindsOut = XXValBindsLR (GhcPass a) (GhcPass b)
-> HsValBindsLR (GhcPass a) (GhcPass b)
forall idL idR. XXValBindsLR idL idR -> HsValBindsLR idL idR
XValBindsLR ([(RecFlag, LHsBinds (GhcPass a))]
-> [LSig GhcRn] -> NHsValBindsLR (GhcPass a)
forall idL.
[(RecFlag, LHsBinds idL)] -> [LSig GhcRn] -> NHsValBindsLR idL
NValBinds [] [])

emptyLHsBinds :: LHsBindsLR (GhcPass idL) idR
emptyLHsBinds :: forall (idL :: Pass) idR. LHsBindsLR (GhcPass idL) idR
emptyLHsBinds = Bag (XRec (GhcPass idL) (HsBindLR (GhcPass idL) idR))
Bag
  (GenLocated
     (Anno (HsBindLR (GhcPass idL) idR)) (HsBindLR (GhcPass idL) idR))
forall a. Bag a
emptyBag

isEmptyLHsBinds :: LHsBindsLR (GhcPass idL) idR -> Bool
isEmptyLHsBinds :: forall (idL :: Pass) idR. LHsBindsLR (GhcPass idL) idR -> Bool
isEmptyLHsBinds = Bag (XRec (GhcPass idL) (HsBindLR (GhcPass idL) idR)) -> Bool
Bag
  (GenLocated
     (Anno (HsBindLR (GhcPass idL) idR)) (HsBindLR (GhcPass idL) idR))
-> Bool
forall a. Bag a -> Bool
isEmptyBag

------------
plusHsValBinds :: HsValBinds (GhcPass a) -> HsValBinds (GhcPass a)
               -> HsValBinds(GhcPass a)
plusHsValBinds :: forall (a :: Pass).
HsValBinds (GhcPass a)
-> HsValBinds (GhcPass a) -> HsValBinds (GhcPass a)
plusHsValBinds (ValBinds XValBinds (GhcPass a) (GhcPass a)
_ LHsBindsLR (GhcPass a) (GhcPass a)
ds1 [LSig (GhcPass a)]
sigs1) (ValBinds XValBinds (GhcPass a) (GhcPass a)
_ LHsBindsLR (GhcPass a) (GhcPass a)
ds2 [LSig (GhcPass a)]
sigs2)
  = XValBinds (GhcPass a) (GhcPass a)
-> LHsBindsLR (GhcPass a) (GhcPass a)
-> [LSig (GhcPass a)]
-> HsValBindsLR (GhcPass a) (GhcPass a)
forall idL idR.
XValBinds idL idR
-> LHsBindsLR idL idR -> [LSig idR] -> HsValBindsLR idL idR
ValBinds XValBinds (GhcPass a) (GhcPass a)
AnnSortKey
NoAnnSortKey (LHsBindsLR (GhcPass a) (GhcPass a)
Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a)))
ds1 Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a)))
-> Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a)))
-> Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a)))
forall a. Bag a -> Bag a -> Bag a
`unionBags` LHsBindsLR (GhcPass a) (GhcPass a)
Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a)))
ds2) ([LSig (GhcPass a)]
[GenLocated SrcSpanAnnA (Sig (GhcPass a))]
sigs1 [GenLocated SrcSpanAnnA (Sig (GhcPass a))]
-> [GenLocated SrcSpanAnnA (Sig (GhcPass a))]
-> [GenLocated SrcSpanAnnA (Sig (GhcPass a))]
forall a. [a] -> [a] -> [a]
++ [LSig (GhcPass a)]
[GenLocated SrcSpanAnnA (Sig (GhcPass a))]
sigs2)
plusHsValBinds (XValBindsLR (NValBinds [(RecFlag, LHsBindsLR (GhcPass a) (GhcPass a))]
ds1 [LSig GhcRn]
sigs1))
               (XValBindsLR (NValBinds [(RecFlag, LHsBindsLR (GhcPass a) (GhcPass a))]
ds2 [LSig GhcRn]
sigs2))
  = XXValBindsLR (GhcPass a) (GhcPass a)
-> HsValBindsLR (GhcPass a) (GhcPass a)
forall idL idR. XXValBindsLR idL idR -> HsValBindsLR idL idR
XValBindsLR ([(RecFlag, LHsBindsLR (GhcPass a) (GhcPass a))]
-> [LSig GhcRn] -> NHsValBindsLR (GhcPass a)
forall idL.
[(RecFlag, LHsBinds idL)] -> [LSig GhcRn] -> NHsValBindsLR idL
NValBinds ([(RecFlag, LHsBindsLR (GhcPass a) (GhcPass a))]
[(RecFlag,
  Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a))))]
ds1 [(RecFlag,
  Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a))))]
-> [(RecFlag,
     Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a))))]
-> [(RecFlag,
     Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a))))]
forall a. [a] -> [a] -> [a]
++ [(RecFlag, LHsBindsLR (GhcPass a) (GhcPass a))]
[(RecFlag,
  Bag (GenLocated SrcSpanAnnA (HsBindLR (GhcPass a) (GhcPass a))))]
ds2) ([LSig GhcRn]
[GenLocated SrcSpanAnnA (Sig GhcRn)]
sigs1 [GenLocated SrcSpanAnnA (Sig GhcRn)]
-> [GenLocated SrcSpanAnnA (Sig GhcRn)]
-> [GenLocated SrcSpanAnnA (Sig GhcRn)]
forall a. [a] -> [a] -> [a]
++ [LSig GhcRn]
[GenLocated SrcSpanAnnA (Sig GhcRn)]
sigs2))
plusHsValBinds HsValBindsLR (GhcPass a) (GhcPass a)
_ HsValBindsLR (GhcPass a) (GhcPass a)
_
  = String -> HsValBindsLR (GhcPass a) (GhcPass a)
forall a. HasCallStack => String -> a
panic String
"HsBinds.plusHsValBinds"

instance (OutputableBndrId pl, OutputableBndrId pr)
         => Outputable (HsBindLR (GhcPass pl) (GhcPass pr)) where
    ppr :: HsBindLR (GhcPass pl) (GhcPass pr) -> SDoc
ppr HsBindLR (GhcPass pl) (GhcPass pr)
mbind = HsBindLR (GhcPass pl) (GhcPass pr) -> SDoc
forall (pl :: Pass) (pr :: Pass).
(OutputableBndrId pl, OutputableBndrId pr) =>
HsBindLR (GhcPass pl) (GhcPass pr) -> SDoc
ppr_monobind HsBindLR (GhcPass pl) (GhcPass pr)
mbind

ppr_monobind :: forall idL idR.
                (OutputableBndrId idL, OutputableBndrId idR)
             => HsBindLR (GhcPass idL) (GhcPass idR) -> SDoc

ppr_monobind :: forall (pl :: Pass) (pr :: Pass).
(OutputableBndrId pl, OutputableBndrId pr) =>
HsBindLR (GhcPass pl) (GhcPass pr) -> SDoc
ppr_monobind (PatBind { pat_lhs :: forall idL idR. HsBindLR idL idR -> LPat idL
pat_lhs = LPat (GhcPass idL)
pat, pat_rhs :: forall idL idR. HsBindLR idL idR -> GRHSs idR (LHsExpr idR)
pat_rhs = GRHSs (GhcPass idR) (LHsExpr (GhcPass idR))
grhss })
  = LPat (GhcPass idL)
-> GRHSs (GhcPass idR) (LHsExpr (GhcPass idR)) -> SDoc
forall (bndr :: Pass) (p :: Pass).
(OutputableBndrId bndr, OutputableBndrId p) =>
LPat (GhcPass bndr)
-> GRHSs (GhcPass p) (LHsExpr (GhcPass p)) -> SDoc
pprPatBind LPat (GhcPass idL)
pat GRHSs (GhcPass idR) (LHsExpr (GhcPass idR))
grhss
ppr_monobind (VarBind { var_id :: forall idL idR. HsBindLR idL idR -> IdP idL
var_id = IdP (GhcPass idL)
var, var_rhs :: forall idL idR. HsBindLR idL idR -> LHsExpr idR
var_rhs = LHsExpr (GhcPass idR)
rhs })
  = [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep [BindingSite -> IdGhcP idL -> SDoc
forall a. OutputableBndr a => BindingSite -> a -> SDoc
pprBndr BindingSite
CasePatBind IdP (GhcPass idL)
IdGhcP idL
var, Int -> SDoc -> SDoc
nest Int
2 (SDoc -> SDoc) -> SDoc -> SDoc
forall a b. (a -> b) -> a -> b
$ SDoc
forall doc. IsLine doc => doc
equals SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> HsExpr (GhcPass idR) -> SDoc
forall (p :: Pass).
OutputableBndrId p =>
HsExpr (GhcPass p) -> SDoc
pprExpr (GenLocated (Anno (HsExpr (GhcPass idR))) (HsExpr (GhcPass idR))
-> HsExpr (GhcPass idR)
forall l e. GenLocated l e -> e
unLoc LHsExpr (GhcPass idR)
GenLocated (Anno (HsExpr (GhcPass idR))) (HsExpr (GhcPass idR))
rhs)]
ppr_monobind (FunBind { fun_id :: forall idL idR. HsBindLR idL idR -> LIdP idL
fun_id = LIdP (GhcPass idL)
fun,
                        fun_matches :: forall idL idR. HsBindLR idL idR -> MatchGroup idR (LHsExpr idR)
fun_matches = MatchGroup (GhcPass idR) (LHsExpr (GhcPass idR))
matches,
                        fun_ext :: forall idL idR. HsBindLR idL idR -> XFunBind idL idR
fun_ext = XFunBind (GhcPass idL) (GhcPass idR)
ext })
  = SDoc -> SDoc -> SDoc
pprTicks SDoc
forall doc. IsOutput doc => doc
empty SDoc
ticksDoc
    SDoc -> SDoc -> SDoc
forall doc. IsDoc doc => doc -> doc -> doc
$$  SDoc -> SDoc
forall doc. IsOutput doc => doc -> doc
whenPprDebug (BindingSite -> IdGhcP idL -> SDoc
forall a. OutputableBndr a => BindingSite -> a -> SDoc
pprBndr BindingSite
LetBind (GenLocated (Anno (IdGhcP idL)) (IdGhcP idL) -> IdGhcP idL
forall l e. GenLocated l e -> e
unLoc LIdP (GhcPass idL)
GenLocated (Anno (IdGhcP idL)) (IdGhcP idL)
fun))
    SDoc -> SDoc -> SDoc
forall doc. IsDoc doc => doc -> doc -> doc
$$  MatchGroup (GhcPass idR) (LHsExpr (GhcPass idR)) -> SDoc
forall (idR :: Pass).
OutputableBndrId idR =>
MatchGroup (GhcPass idR) (LHsExpr (GhcPass idR)) -> SDoc
pprFunBind  MatchGroup (GhcPass idR) (LHsExpr (GhcPass idR))
matches
    SDoc -> SDoc -> SDoc
forall doc. IsDoc doc => doc -> doc -> doc
$$  SDoc -> SDoc
forall doc. IsOutput doc => doc -> doc
whenPprDebug (forall (p :: Pass).
IsPass p =>
((p ~ 'Typechecked) => SDoc) -> SDoc
pprIfTc @idR (((idR ~ 'Typechecked) => SDoc) -> SDoc)
-> ((idR ~ 'Typechecked) => SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ SDoc
(idR ~ 'Typechecked) => SDoc
wrapDoc)
        where
            ticksDoc :: SDoc
            ticksDoc :: SDoc
ticksDoc = case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @idR of
                         GhcPass idR
GhcPs -> SDoc
forall doc. IsOutput doc => doc
empty
                         GhcPass idR
GhcRn -> SDoc
forall doc. IsOutput doc => doc
empty
                         GhcPass idR
GhcTc | (HsWrapper
_, [CoreTickish]
ticks) <- XFunBind (GhcPass idL) (GhcPass idR)
ext ->
                             if [CoreTickish] -> Bool
forall a. [a] -> Bool
forall (t :: * -> *) a. Foldable t => t a -> Bool
null [CoreTickish]
ticks
                                then SDoc
forall doc. IsOutput doc => doc
empty
                                else String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"-- ticks = " SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> [CoreTickish] -> SDoc
forall a. Outputable a => a -> SDoc
ppr [CoreTickish]
ticks
            wrapDoc :: SDoc
            wrapDoc :: SDoc
wrapDoc = case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @idR of
                        GhcPass idR
GhcPs -> SDoc
forall doc. IsOutput doc => doc
empty
                        GhcPass idR
GhcRn -> SDoc
forall doc. IsOutput doc => doc
empty
                        GhcPass idR
GhcTc | (HsWrapper
wrap, [CoreTickish]
_) <- XFunBind (GhcPass idL) (GhcPass idR)
ext -> HsWrapper -> SDoc
forall a. Outputable a => a -> SDoc
ppr HsWrapper
wrap


ppr_monobind (PatSynBind XPatSynBind (GhcPass idL) (GhcPass idR)
_ PatSynBind (GhcPass idL) (GhcPass idR)
psb) = PatSynBind (GhcPass idL) (GhcPass idR) -> SDoc
forall a. Outputable a => a -> SDoc
ppr PatSynBind (GhcPass idL) (GhcPass idR)
psb
ppr_monobind (XHsBindsLR XXHsBindsLR (GhcPass idL) (GhcPass idR)
b) = case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @idL of
#if __GLASGOW_HASKELL__ <= 900
  GhcPs -> dataConCantHappen b
  GhcRn -> dataConCantHappen b
#endif
  GhcPass idL
GhcTc -> AbsBinds -> SDoc
ppr_absbinds XXHsBindsLR (GhcPass idL) (GhcPass idR)
AbsBinds
b
    where
      ppr_absbinds :: AbsBinds -> SDoc
ppr_absbinds (AbsBinds { abs_tvs :: AbsBinds -> [TyVar]
abs_tvs = [TyVar]
tyvars, abs_ev_vars :: AbsBinds -> [TyVar]
abs_ev_vars = [TyVar]
dictvars
                             , abs_exports :: AbsBinds -> [ABExport]
abs_exports = [ABExport]
exports, abs_binds :: AbsBinds -> LHsBinds GhcTc
abs_binds = LHsBinds GhcTc
val_binds
                             , abs_ev_binds :: AbsBinds -> [TcEvBinds]
abs_ev_binds = [TcEvBinds]
ev_binds })
        = (SDocContext -> Bool) -> (Bool -> SDoc) -> SDoc
forall a. (SDocContext -> a) -> (a -> SDoc) -> SDoc
sdocOption SDocContext -> Bool
sdocPrintTypecheckerElaboration ((Bool -> SDoc) -> SDoc) -> (Bool -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \case
          Bool
False -> LHsBinds GhcTc -> SDoc
forall (idL :: Pass) (idR :: Pass).
(OutputableBndrId idL, OutputableBndrId idR) =>
LHsBindsLR (GhcPass idL) (GhcPass idR) -> SDoc
pprLHsBinds LHsBinds GhcTc
val_binds
          Bool
True  -> -- Show extra information (bug number: #10662)
                   SDoc -> Int -> SDoc -> SDoc
hang (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"AbsBinds"
                         SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep [ SDoc -> SDoc
forall doc. IsLine doc => doc -> doc
brackets ([TyVar] -> SDoc
forall a. Outputable a => [a] -> SDoc
interpp'SP [TyVar]
tyvars)
                                 , SDoc -> SDoc
forall doc. IsLine doc => doc -> doc
brackets ([TyVar] -> SDoc
forall a. Outputable a => [a] -> SDoc
interpp'SP [TyVar]
dictvars) ])
                      Int
2 (SDoc -> SDoc) -> SDoc -> SDoc
forall a b. (a -> b) -> a -> b
$ SDoc -> SDoc
forall doc. IsLine doc => doc -> doc
braces (SDoc -> SDoc) -> SDoc -> SDoc
forall a b. (a -> b) -> a -> b
$ [SDoc] -> SDoc
forall doc. IsDoc doc => [doc] -> doc
vcat
                   [ String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Exports:" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+>
                       SDoc -> SDoc
forall doc. IsLine doc => doc -> doc
brackets ([SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep (SDoc -> [SDoc] -> [SDoc]
forall doc. IsLine doc => doc -> [doc] -> [doc]
punctuate SDoc
forall doc. IsLine doc => doc
comma ((ABExport -> SDoc) -> [ABExport] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map ABExport -> SDoc
forall a. Outputable a => a -> SDoc
ppr [ABExport]
exports)))
                   , String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Exported types:" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+>
                       [SDoc] -> SDoc
forall doc. IsDoc doc => [doc] -> doc
vcat [BindingSite -> TyVar -> SDoc
forall a. OutputableBndr a => BindingSite -> a -> SDoc
pprBndr BindingSite
LetBind (ABExport -> TyVar
abe_poly ABExport
ex) | ABExport
ex <- [ABExport]
exports]
                   , String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Binds:" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> LHsBinds GhcTc -> SDoc
forall (idL :: Pass) (idR :: Pass).
(OutputableBndrId idL, OutputableBndrId idR) =>
LHsBindsLR (GhcPass idL) (GhcPass idR) -> SDoc
pprLHsBinds LHsBinds GhcTc
val_binds
                   , forall (p :: Pass).
IsPass p =>
((p ~ 'Typechecked) => SDoc) -> SDoc
pprIfTc @idR (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Evidence:" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> [TcEvBinds] -> SDoc
forall a. Outputable a => a -> SDoc
ppr [TcEvBinds]
ev_binds)
                   ]

instance Outputable ABExport where
  ppr :: ABExport -> SDoc
ppr (ABE { abe_wrap :: ABExport -> HsWrapper
abe_wrap = HsWrapper
wrap, abe_poly :: ABExport -> TyVar
abe_poly = TyVar
gbl, abe_mono :: ABExport -> TyVar
abe_mono = TyVar
lcl, abe_prags :: ABExport -> TcSpecPrags
abe_prags = TcSpecPrags
prags })
    = [SDoc] -> SDoc
forall doc. IsDoc doc => [doc] -> doc
vcat [ [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep [ TyVar -> SDoc
forall a. Outputable a => a -> SDoc
ppr TyVar
gbl, Int -> SDoc -> SDoc
nest Int
2 (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"<=" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> TyVar -> SDoc
forall a. Outputable a => a -> SDoc
ppr TyVar
lcl) ]
           , Int -> SDoc -> SDoc
nest Int
2 (TcSpecPrags -> SDoc
pprTcSpecPrags TcSpecPrags
prags)
           , SDoc -> SDoc
forall a. Outputable a => a -> SDoc
ppr (SDoc -> SDoc) -> SDoc -> SDoc
forall a b. (a -> b) -> a -> b
$ Int -> SDoc -> SDoc
nest Int
2 (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"wrap:" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> HsWrapper -> SDoc
forall a. Outputable a => a -> SDoc
ppr HsWrapper
wrap) ]

instance (OutputableBndrId l, OutputableBndrId r)
          => Outputable (PatSynBind (GhcPass l) (GhcPass r)) where
  ppr :: PatSynBind (GhcPass l) (GhcPass r) -> SDoc
ppr (PSB{ psb_id :: forall idL idR. PatSynBind idL idR -> LIdP idL
psb_id = (L Anno (IdGhcP l)
_ IdGhcP l
psyn), psb_args :: forall idL idR. PatSynBind idL idR -> HsPatSynDetails idR
psb_args = HsPatSynDetails (GhcPass r)
details, psb_def :: forall idL idR. PatSynBind idL idR -> LPat idR
psb_def = LPat (GhcPass r)
pat,
            psb_dir :: forall idL idR. PatSynBind idL idR -> HsPatSynDir idR
psb_dir = HsPatSynDir (GhcPass r)
dir })
      = SDoc
ppr_lhs SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc
ppr_rhs
    where
      ppr_lhs :: SDoc
ppr_lhs = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"pattern" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc
ppr_details
      ppr_simple :: SDoc -> SDoc
ppr_simple SDoc
syntax = SDoc
syntax SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> LPat (GhcPass r) -> SDoc
forall (p :: Pass). OutputableBndrId p => LPat (GhcPass p) -> SDoc
pprLPat LPat (GhcPass r)
pat

      ppr_details :: SDoc
ppr_details = case HsPatSynDetails (GhcPass r)
details of
          InfixCon LIdP (GhcPass r)
v1 LIdP (GhcPass r)
v2 -> [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
hsep [GenLocated (Anno (IdGhcP r)) (IdGhcP r) -> SDoc
ppr_v LIdP (GhcPass r)
GenLocated (Anno (IdGhcP r)) (IdGhcP r)
v1, IdGhcP l -> SDoc
forall a. OutputableBndr a => a -> SDoc
pprInfixOcc IdGhcP l
psyn, GenLocated (Anno (IdGhcP r)) (IdGhcP r) -> SDoc
ppr_v  LIdP (GhcPass r)
GenLocated (Anno (IdGhcP r)) (IdGhcP r)
v2]
            where
                ppr_v :: GenLocated (Anno (IdGhcP r)) (IdGhcP r) -> SDoc
ppr_v GenLocated (Anno (IdGhcP r)) (IdGhcP r)
v = case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @r of
                    GhcPass r
GhcPs -> GenLocated SrcSpanAnnN RdrName -> SDoc
forall a. Outputable a => a -> SDoc
ppr GenLocated (Anno (IdGhcP r)) (IdGhcP r)
GenLocated SrcSpanAnnN RdrName
v
                    GhcPass r
GhcRn -> GenLocated SrcSpanAnnN Name -> SDoc
forall a. Outputable a => a -> SDoc
ppr GenLocated (Anno (IdGhcP r)) (IdGhcP r)
GenLocated SrcSpanAnnN Name
v
                    GhcPass r
GhcTc -> GenLocated SrcSpanAnnN TyVar -> SDoc
forall a. Outputable a => a -> SDoc
ppr GenLocated (Anno (IdGhcP r)) (IdGhcP r)
GenLocated SrcSpanAnnN TyVar
v
          PrefixCon [Void]
_ [LIdP (GhcPass r)]
vs -> [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
hsep (IdGhcP l -> SDoc
forall a. OutputableBndr a => a -> SDoc
pprPrefixOcc IdGhcP l
psyn SDoc -> [SDoc] -> [SDoc]
forall a. a -> [a] -> [a]
: (GenLocated (Anno (IdGhcP r)) (IdGhcP r) -> SDoc)
-> [GenLocated (Anno (IdGhcP r)) (IdGhcP r)] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map GenLocated (Anno (IdGhcP r)) (IdGhcP r) -> SDoc
ppr_v [LIdP (GhcPass r)]
[GenLocated (Anno (IdGhcP r)) (IdGhcP r)]
vs)
            where
                ppr_v :: GenLocated (Anno (IdGhcP r)) (IdGhcP r) -> SDoc
ppr_v GenLocated (Anno (IdGhcP r)) (IdGhcP r)
v = case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @r of
                    GhcPass r
GhcPs -> GenLocated SrcSpanAnnN RdrName -> SDoc
forall a. Outputable a => a -> SDoc
ppr GenLocated (Anno (IdGhcP r)) (IdGhcP r)
GenLocated SrcSpanAnnN RdrName
v
                    GhcPass r
GhcRn -> GenLocated SrcSpanAnnN Name -> SDoc
forall a. Outputable a => a -> SDoc
ppr GenLocated (Anno (IdGhcP r)) (IdGhcP r)
GenLocated SrcSpanAnnN Name
v
                    GhcPass r
GhcTc -> GenLocated SrcSpanAnnN TyVar -> SDoc
forall a. Outputable a => a -> SDoc
ppr GenLocated (Anno (IdGhcP r)) (IdGhcP r)
GenLocated SrcSpanAnnN TyVar
v
          RecCon [RecordPatSynField (GhcPass r)]
vs      -> IdGhcP l -> SDoc
forall a. OutputableBndr a => a -> SDoc
pprPrefixOcc IdGhcP l
psyn
                            SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc
braces ([SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep (SDoc -> [SDoc] -> [SDoc]
forall doc. IsLine doc => doc -> [doc] -> [doc]
punctuate SDoc
forall doc. IsLine doc => doc
comma ((RecordPatSynField (GhcPass r) -> SDoc)
-> [RecordPatSynField (GhcPass r)] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map RecordPatSynField (GhcPass r) -> SDoc
ppr_v [RecordPatSynField (GhcPass r)]
vs)))
            where
                ppr_v :: RecordPatSynField (GhcPass r) -> SDoc
ppr_v RecordPatSynField (GhcPass r)
v = case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @r of
                    GhcPass r
GhcPs -> RecordPatSynField (GhcPass 'Parsed) -> SDoc
forall a. Outputable a => a -> SDoc
ppr RecordPatSynField (GhcPass r)
RecordPatSynField (GhcPass 'Parsed)
v
                    GhcPass r
GhcRn -> RecordPatSynField GhcRn -> SDoc
forall a. Outputable a => a -> SDoc
ppr RecordPatSynField (GhcPass r)
RecordPatSynField GhcRn
v
                    GhcPass r
GhcTc -> RecordPatSynField GhcTc -> SDoc
forall a. Outputable a => a -> SDoc
ppr RecordPatSynField (GhcPass r)
RecordPatSynField GhcTc
v

      ppr_rhs :: SDoc
ppr_rhs = case HsPatSynDir (GhcPass r)
dir of
          HsPatSynDir (GhcPass r)
Unidirectional           -> SDoc -> SDoc
ppr_simple (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"<-")
          HsPatSynDir (GhcPass r)
ImplicitBidirectional    -> SDoc -> SDoc
ppr_simple SDoc
forall doc. IsLine doc => doc
equals
          ExplicitBidirectional MatchGroup (GhcPass r) (LHsExpr (GhcPass r))
mg -> SDoc -> SDoc
ppr_simple (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"<-") SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"where" SDoc -> SDoc -> SDoc
forall doc. IsDoc doc => doc -> doc -> doc
$$
                                      (Int -> SDoc -> SDoc
nest Int
2 (SDoc -> SDoc) -> SDoc -> SDoc
forall a b. (a -> b) -> a -> b
$ MatchGroup (GhcPass r) (LHsExpr (GhcPass r)) -> SDoc
forall (idR :: Pass).
OutputableBndrId idR =>
MatchGroup (GhcPass idR) (LHsExpr (GhcPass idR)) -> SDoc
pprFunBind MatchGroup (GhcPass r) (LHsExpr (GhcPass r))
mg)

pprTicks :: SDoc -> SDoc -> SDoc
-- Print stuff about ticks only when -dppr-debug is on, to avoid
-- them appearing in error messages (from the desugarer); see # 3263
-- Also print ticks in dumpStyle, so that -ddump-hpc actually does
-- something useful.
pprTicks :: SDoc -> SDoc -> SDoc
pprTicks SDoc
pp_no_debug SDoc
pp_when_debug
  = (PprStyle -> SDoc) -> SDoc
getPprStyle ((PprStyle -> SDoc) -> SDoc) -> (PprStyle -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \PprStyle
sty ->
    (Bool -> SDoc) -> SDoc
forall doc. IsOutput doc => (Bool -> doc) -> doc
getPprDebug ((Bool -> SDoc) -> SDoc) -> (Bool -> SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ \Bool
debug ->
      if Bool
debug Bool -> Bool -> Bool
|| PprStyle -> Bool
dumpStyle PprStyle
sty
         then SDoc
pp_when_debug
         else SDoc
pp_no_debug

instance Outputable (XRec a RdrName) => Outputable (RecordPatSynField a) where
    ppr :: RecordPatSynField a -> SDoc
ppr (RecordPatSynField { recordPatSynField :: forall pass. RecordPatSynField pass -> FieldOcc pass
recordPatSynField = FieldOcc a
v }) = FieldOcc a -> SDoc
forall a. Outputable a => a -> SDoc
ppr FieldOcc a
v


{-
************************************************************************
*                                                                      *
                Implicit parameter bindings
*                                                                      *
************************************************************************
-}

type instance XIPBinds       GhcPs = NoExtField
type instance XIPBinds       GhcRn = NoExtField
type instance XIPBinds       GhcTc = TcEvBinds -- binds uses of the
                                               -- implicit parameters


type instance XXHsIPBinds    (GhcPass p) = DataConCantHappen

isEmptyIPBindsPR :: HsIPBinds (GhcPass p) -> Bool
isEmptyIPBindsPR :: forall (p :: Pass). HsIPBinds (GhcPass p) -> Bool
isEmptyIPBindsPR (IPBinds XIPBinds (GhcPass p)
_ [LIPBind (GhcPass p)]
is) = [GenLocated SrcSpanAnnA (IPBind (GhcPass p))] -> Bool
forall a. [a] -> Bool
forall (t :: * -> *) a. Foldable t => t a -> Bool
null [LIPBind (GhcPass p)]
[GenLocated SrcSpanAnnA (IPBind (GhcPass p))]
is

isEmptyIPBindsTc :: HsIPBinds GhcTc -> Bool
isEmptyIPBindsTc :: HsIPBinds GhcTc -> Bool
isEmptyIPBindsTc (IPBinds XIPBinds GhcTc
ds [LIPBind GhcTc]
is) = [GenLocated SrcSpanAnnA (IPBind GhcTc)] -> Bool
forall a. [a] -> Bool
forall (t :: * -> *) a. Foldable t => t a -> Bool
null [LIPBind GhcTc]
[GenLocated SrcSpanAnnA (IPBind GhcTc)]
is Bool -> Bool -> Bool
&& TcEvBinds -> Bool
isEmptyTcEvBinds XIPBinds GhcTc
TcEvBinds
ds

-- EPA annotations in GhcPs, dictionary Id in GhcTc
type instance XCIPBind GhcPs = EpAnn [AddEpAnn]
type instance XCIPBind GhcRn = NoExtField
type instance XCIPBind GhcTc = Id
type instance XXIPBind    (GhcPass p) = DataConCantHappen

instance OutputableBndrId p
       => Outputable (HsIPBinds (GhcPass p)) where
  ppr :: HsIPBinds (GhcPass p) -> SDoc
ppr (IPBinds XIPBinds (GhcPass p)
ds [LIPBind (GhcPass p)]
bs) = ([SDoc] -> SDoc) -> [SDoc] -> SDoc
pprDeeperList [SDoc] -> SDoc
forall doc. IsDoc doc => [doc] -> doc
vcat ((GenLocated SrcSpanAnnA (IPBind (GhcPass p)) -> SDoc)
-> [GenLocated SrcSpanAnnA (IPBind (GhcPass p))] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map GenLocated SrcSpanAnnA (IPBind (GhcPass p)) -> SDoc
forall a. Outputable a => a -> SDoc
ppr [LIPBind (GhcPass p)]
[GenLocated SrcSpanAnnA (IPBind (GhcPass p))]
bs)
                        SDoc -> SDoc -> SDoc
forall doc. IsDoc doc => doc -> doc -> doc
$$ SDoc -> SDoc
forall doc. IsOutput doc => doc -> doc
whenPprDebug (forall (p :: Pass).
IsPass p =>
((p ~ 'Typechecked) => SDoc) -> SDoc
pprIfTc @p (((p ~ 'Typechecked) => SDoc) -> SDoc)
-> ((p ~ 'Typechecked) => SDoc) -> SDoc
forall a b. (a -> b) -> a -> b
$ TcEvBinds -> SDoc
forall a. Outputable a => a -> SDoc
ppr XIPBinds (GhcPass p)
TcEvBinds
ds)

instance OutputableBndrId p => Outputable (IPBind (GhcPass p)) where
  ppr :: IPBind (GhcPass p) -> SDoc
ppr (IPBind XCIPBind (GhcPass p)
x (L SrcAnn NoEpAnns
_ HsIPName
ip) LHsExpr (GhcPass p)
rhs) = SDoc
name SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc
forall doc. IsLine doc => doc
equals SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> HsExpr (GhcPass p) -> SDoc
forall (p :: Pass).
OutputableBndrId p =>
HsExpr (GhcPass p) -> SDoc
pprExpr (GenLocated (Anno (HsExpr (GhcPass p))) (HsExpr (GhcPass p))
-> HsExpr (GhcPass p)
forall l e. GenLocated l e -> e
unLoc LHsExpr (GhcPass p)
GenLocated (Anno (HsExpr (GhcPass p))) (HsExpr (GhcPass p))
rhs)
    where name :: SDoc
name = case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @p of
            GhcPass p
GhcPs -> BindingSite -> HsIPName -> SDoc
forall a. OutputableBndr a => BindingSite -> a -> SDoc
pprBndr BindingSite
LetBind HsIPName
ip
            GhcPass p
GhcRn -> BindingSite -> HsIPName -> SDoc
forall a. OutputableBndr a => BindingSite -> a -> SDoc
pprBndr BindingSite
LetBind HsIPName
ip
            GhcPass p
GhcTc -> BindingSite -> TyVar -> SDoc
forall a. OutputableBndr a => BindingSite -> a -> SDoc
pprBndr BindingSite
LetBind XCIPBind (GhcPass p)
TyVar
x

{-
************************************************************************
*                                                                      *
\subsection{@Sig@: type signatures and value-modifying user pragmas}
*                                                                      *
************************************************************************
-}

type instance XTypeSig          (GhcPass p) = EpAnn AnnSig
type instance XPatSynSig        (GhcPass p) = EpAnn AnnSig
type instance XClassOpSig       (GhcPass p) = EpAnn AnnSig
type instance XFixSig           (GhcPass p) = EpAnn [AddEpAnn]
type instance XInlineSig        (GhcPass p) = EpAnn [AddEpAnn]
type instance XSpecSig          (GhcPass p) = EpAnn [AddEpAnn]
type instance XSpecInstSig      (GhcPass p) = (EpAnn [AddEpAnn], SourceText)
type instance XMinimalSig       (GhcPass p) = (EpAnn [AddEpAnn], SourceText)
type instance XSCCFunSig        (GhcPass p) = (EpAnn [AddEpAnn], SourceText)
type instance XCompleteMatchSig (GhcPass p) = (EpAnn [AddEpAnn], SourceText)
    -- SourceText: Note [Pragma source text] in "GHC.Types.SourceText"
type instance XXSig             GhcPs = DataConCantHappen
type instance XXSig             GhcRn = IdSig
type instance XXSig             GhcTc = IdSig

type instance XFixitySig  (GhcPass p) = NoExtField
type instance XXFixitySig (GhcPass p) = DataConCantHappen

-- | A type signature in generated code, notably the code
-- generated for record selectors. We simply record the desired Id
-- itself, replete with its name, type and IdDetails. Otherwise it's
-- just like a type signature: there should be an accompanying binding
newtype IdSig = IdSig { IdSig -> TyVar
unIdSig :: Id }
    deriving Typeable IdSig
Typeable IdSig =>
(forall (c :: * -> *).
 (forall d b. Data d => c (d -> b) -> d -> c b)
 -> (forall g. g -> c g) -> IdSig -> c IdSig)
-> (forall (c :: * -> *).
    (forall b r. Data b => c (b -> r) -> c r)
    -> (forall r. r -> c r) -> Constr -> c IdSig)
-> (IdSig -> Constr)
-> (IdSig -> DataType)
-> (forall (t :: * -> *) (c :: * -> *).
    Typeable t =>
    (forall d. Data d => c (t d)) -> Maybe (c IdSig))
-> (forall (t :: * -> * -> *) (c :: * -> *).
    Typeable t =>
    (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c IdSig))
-> ((forall b. Data b => b -> b) -> IdSig -> IdSig)
-> (forall r r'.
    (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> IdSig -> r)
-> (forall r r'.
    (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> IdSig -> r)
-> (forall u. (forall d. Data d => d -> u) -> IdSig -> [u])
-> (forall u. Int -> (forall d. Data d => d -> u) -> IdSig -> u)
-> (forall (m :: * -> *).
    Monad m =>
    (forall d. Data d => d -> m d) -> IdSig -> m IdSig)
-> (forall (m :: * -> *).
    MonadPlus m =>
    (forall d. Data d => d -> m d) -> IdSig -> m IdSig)
-> (forall (m :: * -> *).
    MonadPlus m =>
    (forall d. Data d => d -> m d) -> IdSig -> m IdSig)
-> Data IdSig
IdSig -> Constr
IdSig -> DataType
(forall b. Data b => b -> b) -> IdSig -> IdSig
forall a.
Typeable a =>
(forall (c :: * -> *).
 (forall d b. Data d => c (d -> b) -> d -> c b)
 -> (forall g. g -> c g) -> a -> c a)
-> (forall (c :: * -> *).
    (forall b r. Data b => c (b -> r) -> c r)
    -> (forall r. r -> c r) -> Constr -> c a)
-> (a -> Constr)
-> (a -> DataType)
-> (forall (t :: * -> *) (c :: * -> *).
    Typeable t =>
    (forall d. Data d => c (t d)) -> Maybe (c a))
-> (forall (t :: * -> * -> *) (c :: * -> *).
    Typeable t =>
    (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c a))
-> ((forall b. Data b => b -> b) -> a -> a)
-> (forall r r'.
    (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> a -> r)
-> (forall r r'.
    (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> a -> r)
-> (forall u. (forall d. Data d => d -> u) -> a -> [u])
-> (forall u. Int -> (forall d. Data d => d -> u) -> a -> u)
-> (forall (m :: * -> *).
    Monad m =>
    (forall d. Data d => d -> m d) -> a -> m a)
-> (forall (m :: * -> *).
    MonadPlus m =>
    (forall d. Data d => d -> m d) -> a -> m a)
-> (forall (m :: * -> *).
    MonadPlus m =>
    (forall d. Data d => d -> m d) -> a -> m a)
-> Data a
forall u. Int -> (forall d. Data d => d -> u) -> IdSig -> u
forall u. (forall d. Data d => d -> u) -> IdSig -> [u]
forall r r'.
(r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> IdSig -> r
forall r r'.
(r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> IdSig -> r
forall (m :: * -> *).
Monad m =>
(forall d. Data d => d -> m d) -> IdSig -> m IdSig
forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> IdSig -> m IdSig
forall (c :: * -> *).
(forall b r. Data b => c (b -> r) -> c r)
-> (forall r. r -> c r) -> Constr -> c IdSig
forall (c :: * -> *).
(forall d b. Data d => c (d -> b) -> d -> c b)
-> (forall g. g -> c g) -> IdSig -> c IdSig
forall (t :: * -> *) (c :: * -> *).
Typeable t =>
(forall d. Data d => c (t d)) -> Maybe (c IdSig)
forall (t :: * -> * -> *) (c :: * -> *).
Typeable t =>
(forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c IdSig)
$cgfoldl :: forall (c :: * -> *).
(forall d b. Data d => c (d -> b) -> d -> c b)
-> (forall g. g -> c g) -> IdSig -> c IdSig
gfoldl :: forall (c :: * -> *).
(forall d b. Data d => c (d -> b) -> d -> c b)
-> (forall g. g -> c g) -> IdSig -> c IdSig
$cgunfold :: forall (c :: * -> *).
(forall b r. Data b => c (b -> r) -> c r)
-> (forall r. r -> c r) -> Constr -> c IdSig
gunfold :: forall (c :: * -> *).
(forall b r. Data b => c (b -> r) -> c r)
-> (forall r. r -> c r) -> Constr -> c IdSig
$ctoConstr :: IdSig -> Constr
toConstr :: IdSig -> Constr
$cdataTypeOf :: IdSig -> DataType
dataTypeOf :: IdSig -> DataType
$cdataCast1 :: forall (t :: * -> *) (c :: * -> *).
Typeable t =>
(forall d. Data d => c (t d)) -> Maybe (c IdSig)
dataCast1 :: forall (t :: * -> *) (c :: * -> *).
Typeable t =>
(forall d. Data d => c (t d)) -> Maybe (c IdSig)
$cdataCast2 :: forall (t :: * -> * -> *) (c :: * -> *).
Typeable t =>
(forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c IdSig)
dataCast2 :: forall (t :: * -> * -> *) (c :: * -> *).
Typeable t =>
(forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c IdSig)
$cgmapT :: (forall b. Data b => b -> b) -> IdSig -> IdSig
gmapT :: (forall b. Data b => b -> b) -> IdSig -> IdSig
$cgmapQl :: forall r r'.
(r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> IdSig -> r
gmapQl :: forall r r'.
(r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> IdSig -> r
$cgmapQr :: forall r r'.
(r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> IdSig -> r
gmapQr :: forall r r'.
(r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> IdSig -> r
$cgmapQ :: forall u. (forall d. Data d => d -> u) -> IdSig -> [u]
gmapQ :: forall u. (forall d. Data d => d -> u) -> IdSig -> [u]
$cgmapQi :: forall u. Int -> (forall d. Data d => d -> u) -> IdSig -> u
gmapQi :: forall u. Int -> (forall d. Data d => d -> u) -> IdSig -> u
$cgmapM :: forall (m :: * -> *).
Monad m =>
(forall d. Data d => d -> m d) -> IdSig -> m IdSig
gmapM :: forall (m :: * -> *).
Monad m =>
(forall d. Data d => d -> m d) -> IdSig -> m IdSig
$cgmapMp :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> IdSig -> m IdSig
gmapMp :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> IdSig -> m IdSig
$cgmapMo :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> IdSig -> m IdSig
gmapMo :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> IdSig -> m IdSig
Data

data AnnSig
  = AnnSig {
      AnnSig -> AddEpAnn
asDcolon :: AddEpAnn, -- Not an EpaAnchor to capture unicode option
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asRest   :: [AddEpAnn]
      } deriving Typeable AnnSig
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Data


-- | Type checker Specialisation Pragmas
--
-- 'TcSpecPrags' conveys @SPECIALISE@ pragmas from the type checker to the desugarer
data TcSpecPrags
  = IsDefaultMethod     -- ^ Super-specialised: a default method should
                        -- be macro-expanded at every call site
  | SpecPrags [LTcSpecPrag]
  deriving Typeable TcSpecPrags
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Data

-- | Located Type checker Specification Pragmas
type LTcSpecPrag = Located TcSpecPrag

-- | Type checker Specification Pragma
data TcSpecPrag
  = SpecPrag
        Id
        HsWrapper
        InlinePragma
  -- ^ The Id to be specialised, a wrapper that specialises the
  -- polymorphic function, and inlining spec for the specialised function
  deriving Typeable TcSpecPrag
Typeable TcSpecPrag =>
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$cgmapMp :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> TcSpecPrag -> m TcSpecPrag
gmapMp :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> TcSpecPrag -> m TcSpecPrag
$cgmapMo :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> TcSpecPrag -> m TcSpecPrag
gmapMo :: forall (m :: * -> *).
MonadPlus m =>
(forall d. Data d => d -> m d) -> TcSpecPrag -> m TcSpecPrag
Data

noSpecPrags :: TcSpecPrags
noSpecPrags :: TcSpecPrags
noSpecPrags = [LTcSpecPrag] -> TcSpecPrags
SpecPrags []

hasSpecPrags :: TcSpecPrags -> Bool
hasSpecPrags :: TcSpecPrags -> Bool
hasSpecPrags (SpecPrags [LTcSpecPrag]
ps) = Bool -> Bool
not ([LTcSpecPrag] -> Bool
forall a. [a] -> Bool
forall (t :: * -> *) a. Foldable t => t a -> Bool
null [LTcSpecPrag]
ps)
hasSpecPrags TcSpecPrags
IsDefaultMethod = Bool
False

isDefaultMethod :: TcSpecPrags -> Bool
isDefaultMethod :: TcSpecPrags -> Bool
isDefaultMethod TcSpecPrags
IsDefaultMethod = Bool
True
isDefaultMethod (SpecPrags {})  = Bool
False

instance OutputableBndrId p => Outputable (Sig (GhcPass p)) where
    ppr :: Sig (GhcPass p) -> SDoc
ppr Sig (GhcPass p)
sig = Sig (GhcPass p) -> SDoc
forall (p :: Pass). OutputableBndrId p => Sig (GhcPass p) -> SDoc
ppr_sig Sig (GhcPass p)
sig

ppr_sig :: forall p. OutputableBndrId p
        => Sig (GhcPass p) -> SDoc
ppr_sig :: forall (p :: Pass). OutputableBndrId p => Sig (GhcPass p) -> SDoc
ppr_sig (TypeSig XTypeSig (GhcPass p)
_ [LIdP (GhcPass p)]
vars LHsSigWcType (GhcPass p)
ty)  = [IdGhcP p] -> SDoc -> SDoc
forall id. OutputableBndr id => [id] -> SDoc -> SDoc
pprVarSig ((GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p)
-> [GenLocated (Anno (IdGhcP p)) (IdGhcP p)] -> [IdGhcP p]
forall a b. (a -> b) -> [a] -> [b]
map GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p
forall l e. GenLocated l e -> e
unLoc [LIdP (GhcPass p)]
[GenLocated (Anno (IdGhcP p)) (IdGhcP p)]
vars) (HsWildCardBndrs
  (GhcPass p) (GenLocated SrcSpanAnnA (HsSigType (GhcPass p)))
-> SDoc
forall a. Outputable a => a -> SDoc
ppr LHsSigWcType (GhcPass p)
HsWildCardBndrs
  (GhcPass p) (GenLocated SrcSpanAnnA (HsSigType (GhcPass p)))
ty)
ppr_sig (ClassOpSig XClassOpSig (GhcPass p)
_ Bool
is_deflt [LIdP (GhcPass p)]
vars LHsSigType (GhcPass p)
ty)
  | Bool
is_deflt                 = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"default" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> [IdGhcP p] -> SDoc -> SDoc
forall id. OutputableBndr id => [id] -> SDoc -> SDoc
pprVarSig ((GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p)
-> [GenLocated (Anno (IdGhcP p)) (IdGhcP p)] -> [IdGhcP p]
forall a b. (a -> b) -> [a] -> [b]
map GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p
forall l e. GenLocated l e -> e
unLoc [LIdP (GhcPass p)]
[GenLocated (Anno (IdGhcP p)) (IdGhcP p)]
vars) (GenLocated SrcSpanAnnA (HsSigType (GhcPass p)) -> SDoc
forall a. Outputable a => a -> SDoc
ppr LHsSigType (GhcPass p)
GenLocated SrcSpanAnnA (HsSigType (GhcPass p))
ty)
  | Bool
otherwise                = [IdGhcP p] -> SDoc -> SDoc
forall id. OutputableBndr id => [id] -> SDoc -> SDoc
pprVarSig ((GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p)
-> [GenLocated (Anno (IdGhcP p)) (IdGhcP p)] -> [IdGhcP p]
forall a b. (a -> b) -> [a] -> [b]
map GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p
forall l e. GenLocated l e -> e
unLoc [LIdP (GhcPass p)]
[GenLocated (Anno (IdGhcP p)) (IdGhcP p)]
vars) (GenLocated SrcSpanAnnA (HsSigType (GhcPass p)) -> SDoc
forall a. Outputable a => a -> SDoc
ppr LHsSigType (GhcPass p)
GenLocated SrcSpanAnnA (HsSigType (GhcPass p))
ty)
ppr_sig (FixSig XFixSig (GhcPass p)
_ FixitySig (GhcPass p)
fix_sig)   = FixitySig (GhcPass p) -> SDoc
forall a. Outputable a => a -> SDoc
ppr FixitySig (GhcPass p)
fix_sig
ppr_sig (SpecSig XSpecSig (GhcPass p)
_ LIdP (GhcPass p)
var [LHsSigType (GhcPass p)]
ty inl :: InlinePragma
inl@(InlinePragma { inl_inline :: InlinePragma -> InlineSpec
inl_inline = InlineSpec
spec }))
  = SourceText -> String -> SDoc -> SDoc
pragSrcBrackets (InlinePragma -> SourceText
inlinePragmaSource InlinePragma
inl) String
pragmaSrc (IdGhcP p -> SDoc -> InlinePragma -> SDoc
forall id. OutputableBndr id => id -> SDoc -> InlinePragma -> SDoc
pprSpec (GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p
forall l e. GenLocated l e -> e
unLoc LIdP (GhcPass p)
GenLocated (Anno (IdGhcP p)) (IdGhcP p)
var)
                                             ([GenLocated SrcSpanAnnA (HsSigType (GhcPass p))] -> SDoc
forall a. Outputable a => [a] -> SDoc
interpp'SP [LHsSigType (GhcPass p)]
[GenLocated SrcSpanAnnA (HsSigType (GhcPass p))]
ty) InlinePragma
inl)
    where
      pragmaSrc :: String
pragmaSrc = case InlineSpec
spec of
        InlineSpec
NoUserInlinePrag -> String
"{-# " String -> String -> String
forall a. [a] -> [a] -> [a]
++ SourceText -> String
extractSpecPragName (InlinePragma -> SourceText
inl_src InlinePragma
inl)
        InlineSpec
_                -> String
"{-# " String -> String -> String
forall a. [a] -> [a] -> [a]
++ SourceText -> String
extractSpecPragName (InlinePragma -> SourceText
inl_src InlinePragma
inl)  String -> String -> String
forall a. [a] -> [a] -> [a]
++ String
"_INLINE"
ppr_sig (InlineSig XInlineSig (GhcPass p)
_ LIdP (GhcPass p)
var InlinePragma
inl)
  = SDoc
ppr_pfx SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> InlinePragma -> SDoc
pprInline InlinePragma
inl SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> IdGhcP p -> SDoc
forall a. OutputableBndr a => a -> SDoc
pprPrefixOcc (GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p
forall l e. GenLocated l e -> e
unLoc LIdP (GhcPass p)
GenLocated (Anno (IdGhcP p)) (IdGhcP p)
var) SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"#-}"
    where
      ppr_pfx :: SDoc
ppr_pfx = case InlinePragma -> SourceText
inlinePragmaSource InlinePragma
inl of
        SourceText FastString
src -> FastString -> SDoc
forall doc. IsLine doc => FastString -> doc
ftext FastString
src
        SourceText
NoSourceText   -> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"{-#" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> InlineSpec -> SDoc
inlinePragmaName (InlinePragma -> InlineSpec
inl_inline InlinePragma
inl)
ppr_sig (SpecInstSig (EpAnn [AddEpAnn]
_, SourceText
src) LHsSigType (GhcPass p)
ty)
  = SourceText -> String -> SDoc -> SDoc
pragSrcBrackets SourceText
src String
"{-# pragma" (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"instance" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> GenLocated SrcSpanAnnA (HsSigType (GhcPass p)) -> SDoc
forall a. Outputable a => a -> SDoc
ppr LHsSigType (GhcPass p)
GenLocated SrcSpanAnnA (HsSigType (GhcPass p))
ty)
ppr_sig (MinimalSig (EpAnn [AddEpAnn]
_, SourceText
src) LBooleanFormula (LIdP (GhcPass p))
bf)
  = SourceText -> String -> SDoc -> SDoc
pragSrcBrackets SourceText
src String
"{-# MINIMAL" (LBooleanFormula (GenLocated (Anno (IdGhcP p)) (IdGhcP p)) -> SDoc
forall name l.
OutputableBndr name =>
LBooleanFormula (GenLocated l name) -> SDoc
pprMinimalSig LBooleanFormula (LIdP (GhcPass p))
LBooleanFormula (GenLocated (Anno (IdGhcP p)) (IdGhcP p))
bf)
ppr_sig (PatSynSig XPatSynSig (GhcPass p)
_ [LIdP (GhcPass p)]
names LHsSigType (GhcPass p)
sig_ty)
  = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"pattern" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> [IdGhcP p] -> SDoc -> SDoc
forall id. OutputableBndr id => [id] -> SDoc -> SDoc
pprVarSig ((GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p)
-> [GenLocated (Anno (IdGhcP p)) (IdGhcP p)] -> [IdGhcP p]
forall a b. (a -> b) -> [a] -> [b]
map GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p
forall l e. GenLocated l e -> e
unLoc [LIdP (GhcPass p)]
[GenLocated (Anno (IdGhcP p)) (IdGhcP p)]
names) (GenLocated SrcSpanAnnA (HsSigType (GhcPass p)) -> SDoc
forall a. Outputable a => a -> SDoc
ppr LHsSigType (GhcPass p)
GenLocated SrcSpanAnnA (HsSigType (GhcPass p))
sig_ty)
ppr_sig (SCCFunSig (EpAnn [AddEpAnn]
_, SourceText
src) LIdP (GhcPass p)
fn Maybe (XRec (GhcPass p) StringLiteral)
mlabel)
  = SourceText -> String -> SDoc -> SDoc
pragSrcBrackets SourceText
src String
"{-# SCC" (SDoc
ppr_fn SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc
-> (GenLocated (SrcAnn NoEpAnns) StringLiteral -> SDoc)
-> Maybe (GenLocated (SrcAnn NoEpAnns) StringLiteral)
-> SDoc
forall b a. b -> (a -> b) -> Maybe a -> b
maybe SDoc
forall doc. IsOutput doc => doc
empty GenLocated (SrcAnn NoEpAnns) StringLiteral -> SDoc
forall a. Outputable a => a -> SDoc
ppr Maybe (XRec (GhcPass p) StringLiteral)
Maybe (GenLocated (SrcAnn NoEpAnns) StringLiteral)
mlabel )
      where
        ppr_fn :: SDoc
ppr_fn = case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @p of
          GhcPass p
GhcPs -> GenLocated SrcSpanAnnN RdrName -> SDoc
forall a. Outputable a => a -> SDoc
ppr LIdP (GhcPass p)
GenLocated SrcSpanAnnN RdrName
fn
          GhcPass p
GhcRn -> GenLocated SrcSpanAnnN Name -> SDoc
forall a. Outputable a => a -> SDoc
ppr LIdP (GhcPass p)
GenLocated SrcSpanAnnN Name
fn
          GhcPass p
GhcTc -> GenLocated SrcSpanAnnN TyVar -> SDoc
forall a. Outputable a => a -> SDoc
ppr LIdP (GhcPass p)
GenLocated SrcSpanAnnN TyVar
fn
ppr_sig (CompleteMatchSig (EpAnn [AddEpAnn]
_, SourceText
src) XRec (GhcPass p) [LIdP (GhcPass p)]
cs Maybe (LIdP (GhcPass p))
mty)
  = SourceText -> String -> SDoc -> SDoc
pragSrcBrackets SourceText
src String
"{-# COMPLETE"
      (([SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
hsep (SDoc -> [SDoc] -> [SDoc]
forall doc. IsLine doc => doc -> [doc] -> [doc]
punctuate SDoc
forall doc. IsLine doc => doc
comma ((GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> SDoc)
-> [GenLocated (Anno (IdGhcP p)) (IdGhcP p)] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> SDoc
ppr_n (GenLocated
  (Anno [GenLocated (Anno (IdGhcP p)) (IdGhcP p)])
  [GenLocated (Anno (IdGhcP p)) (IdGhcP p)]
-> [GenLocated (Anno (IdGhcP p)) (IdGhcP p)]
forall l e. GenLocated l e -> e
unLoc XRec (GhcPass p) [LIdP (GhcPass p)]
GenLocated
  (Anno [GenLocated (Anno (IdGhcP p)) (IdGhcP p)])
  [GenLocated (Anno (IdGhcP p)) (IdGhcP p)]
cs))))
        SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc
opt_sig)
  where
    opt_sig :: SDoc
opt_sig = SDoc
-> (GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> SDoc)
-> Maybe (GenLocated (Anno (IdGhcP p)) (IdGhcP p))
-> SDoc
forall b a. b -> (a -> b) -> Maybe a -> b
maybe SDoc
forall doc. IsOutput doc => doc
empty ((\IdGhcP p
t -> SDoc
dcolon SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> IdGhcP p -> SDoc
forall a. Outputable a => a -> SDoc
ppr IdGhcP p
t) (IdGhcP p -> SDoc)
-> (GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p)
-> GenLocated (Anno (IdGhcP p)) (IdGhcP p)
-> SDoc
forall b c a. (b -> c) -> (a -> b) -> a -> c
. GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p
forall l e. GenLocated l e -> e
unLoc) Maybe (LIdP (GhcPass p))
Maybe (GenLocated (Anno (IdGhcP p)) (IdGhcP p))
mty
    ppr_n :: GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> SDoc
ppr_n GenLocated (Anno (IdGhcP p)) (IdGhcP p)
n = case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @p of
        GhcPass p
GhcPs -> GenLocated SrcSpanAnnN RdrName -> SDoc
forall a. Outputable a => a -> SDoc
ppr GenLocated (Anno (IdGhcP p)) (IdGhcP p)
GenLocated SrcSpanAnnN RdrName
n
        GhcPass p
GhcRn -> GenLocated SrcSpanAnnN Name -> SDoc
forall a. Outputable a => a -> SDoc
ppr GenLocated (Anno (IdGhcP p)) (IdGhcP p)
GenLocated SrcSpanAnnN Name
n
        GhcPass p
GhcTc -> GenLocated SrcSpanAnnN TyVar -> SDoc
forall a. Outputable a => a -> SDoc
ppr GenLocated (Anno (IdGhcP p)) (IdGhcP p)
GenLocated SrcSpanAnnN TyVar
n
ppr_sig (XSig XXSig (GhcPass p)
x) = case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @p of
                      GhcPass p
GhcRn | IdSig TyVar
id <- XXSig (GhcPass p)
x -> [TyVar] -> SDoc -> SDoc
forall id. OutputableBndr id => [id] -> SDoc -> SDoc
pprVarSig [TyVar
id] (Kind -> SDoc
forall a. Outputable a => a -> SDoc
ppr (TyVar -> Kind
varType TyVar
id))
                      GhcPass p
GhcTc | IdSig TyVar
id <- XXSig (GhcPass p)
x -> [TyVar] -> SDoc -> SDoc
forall id. OutputableBndr id => [id] -> SDoc -> SDoc
pprVarSig [TyVar
id] (Kind -> SDoc
forall a. Outputable a => a -> SDoc
ppr (TyVar -> Kind
varType TyVar
id))

hsSigDoc :: forall p. IsPass p => Sig (GhcPass p) -> SDoc
hsSigDoc :: forall (p :: Pass). IsPass p => Sig (GhcPass p) -> SDoc
hsSigDoc (TypeSig {})           = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"type signature"
hsSigDoc (PatSynSig {})         = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"pattern synonym signature"
hsSigDoc (ClassOpSig XClassOpSig (GhcPass p)
_ Bool
is_deflt [LIdP (GhcPass p)]
_ LHsSigType (GhcPass p)
_)
 | Bool
is_deflt                     = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"default type signature"
 | Bool
otherwise                    = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"class method signature"
hsSigDoc (SpecSig XSpecSig (GhcPass p)
_ LIdP (GhcPass p)
_ [LHsSigType (GhcPass p)]
_ InlinePragma
inl)    = (InlineSpec -> SDoc
inlinePragmaName (InlineSpec -> SDoc)
-> (InlinePragma -> InlineSpec) -> InlinePragma -> SDoc
forall b c a. (b -> c) -> (a -> b) -> a -> c
. InlinePragma -> InlineSpec
inl_inline (InlinePragma -> SDoc) -> InlinePragma -> SDoc
forall a b. (a -> b) -> a -> b
$ InlinePragma
inl) SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"pragma"
hsSigDoc (InlineSig XInlineSig (GhcPass p)
_ LIdP (GhcPass p)
_ InlinePragma
prag)   = (InlineSpec -> SDoc
inlinePragmaName (InlineSpec -> SDoc)
-> (InlinePragma -> InlineSpec) -> InlinePragma -> SDoc
forall b c a. (b -> c) -> (a -> b) -> a -> c
. InlinePragma -> InlineSpec
inl_inline (InlinePragma -> SDoc) -> InlinePragma -> SDoc
forall a b. (a -> b) -> a -> b
$ InlinePragma
prag) SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"pragma"
-- Using the 'inlinePragmaName' function ensures that the pragma name for any
-- one of the INLINE/INLINABLE/NOINLINE pragmas are printed after being extracted
-- from the InlineSpec field of the pragma.
hsSigDoc (SpecInstSig (EpAnn [AddEpAnn]
_, SourceText
src) LHsSigType (GhcPass p)
_)  = String -> SDoc
forall doc. IsLine doc => String -> doc
text (SourceText -> String
extractSpecPragName SourceText
src) SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"instance pragma"
hsSigDoc (FixSig {})            = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"fixity declaration"
hsSigDoc (MinimalSig {})        = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"MINIMAL pragma"
hsSigDoc (SCCFunSig {})         = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"SCC pragma"
hsSigDoc (CompleteMatchSig {})  = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"COMPLETE pragma"
hsSigDoc (XSig XXSig (GhcPass p)
_)               = case forall (p :: Pass). IsPass p => GhcPass p
ghcPass @p of
                                    GhcPass p
GhcRn -> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"id signature"
                                    GhcPass p
GhcTc -> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"id signature"

-- | Extracts the name for a SPECIALIZE instance pragma. In 'hsSigDoc', the src
-- field of 'SpecInstSig' signature contains the SourceText for a SPECIALIZE
-- instance pragma of the form: "SourceText {-# SPECIALIZE"
--
-- Extraction ensures that all variants of the pragma name (with a 'Z' or an
-- 'S') are output exactly as used in the pragma.
extractSpecPragName :: SourceText -> String
extractSpecPragName :: SourceText -> String
extractSpecPragName SourceText
srcTxt =  case (String -> [String]
words (String -> [String]) -> String -> [String]
forall a b. (a -> b) -> a -> b
$ SourceText -> String
forall a. Show a => a -> String
show SourceText
srcTxt) of
     (String
_:String
_:String
pragName:[String]
_) -> (Char -> Bool) -> String -> String
forall a. (a -> Bool) -> [a] -> [a]
filter (Char -> Char -> Bool
forall a. Eq a => a -> a -> Bool
/= Char
'\"') String
pragName
     [String]
_                -> String -> SDoc -> String
forall a. HasCallStack => String -> SDoc -> a
pprPanic String
"hsSigDoc: Misformed SPECIALISE instance pragma:" (SourceText -> SDoc
forall a. Outputable a => a -> SDoc
ppr SourceText
srcTxt)

instance OutputableBndrId p
       => Outputable (FixitySig (GhcPass p)) where
  ppr :: FixitySig (GhcPass p) -> SDoc
ppr (FixitySig XFixitySig (GhcPass p)
_ [LIdP (GhcPass p)]
names Fixity
fixity) = [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep [Fixity -> SDoc
forall a. Outputable a => a -> SDoc
ppr Fixity
fixity, SDoc
pprops]
    where
      pprops :: SDoc
pprops = [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
hsep ([SDoc] -> SDoc) -> [SDoc] -> SDoc
forall a b. (a -> b) -> a -> b
$ SDoc -> [SDoc] -> [SDoc]
forall doc. IsLine doc => doc -> [doc] -> [doc]
punctuate SDoc
forall doc. IsLine doc => doc
comma ((GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> SDoc)
-> [GenLocated (Anno (IdGhcP p)) (IdGhcP p)] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map (IdGhcP p -> SDoc
forall a. OutputableBndr a => a -> SDoc
pprInfixOcc (IdGhcP p -> SDoc)
-> (GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p)
-> GenLocated (Anno (IdGhcP p)) (IdGhcP p)
-> SDoc
forall b c a. (b -> c) -> (a -> b) -> a -> c
. GenLocated (Anno (IdGhcP p)) (IdGhcP p) -> IdGhcP p
forall l e. GenLocated l e -> e
unLoc) [LIdP (GhcPass p)]
[GenLocated (Anno (IdGhcP p)) (IdGhcP p)]
names)

pragBrackets :: SDoc -> SDoc
pragBrackets :: SDoc -> SDoc
pragBrackets SDoc
doc = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"{-#" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc
doc SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"#-}"

-- | Using SourceText in case the pragma was spelled differently or used mixed
-- case
pragSrcBrackets :: SourceText -> String -> SDoc -> SDoc
pragSrcBrackets :: SourceText -> String -> SDoc -> SDoc
pragSrcBrackets (SourceText FastString
src) String
_   SDoc
doc = FastString -> SDoc
forall doc. IsLine doc => FastString -> doc
ftext FastString
src SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc
doc SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"#-}"
pragSrcBrackets SourceText
NoSourceText     String
alt SDoc
doc = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
alt SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc
doc SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"#-}"

pprVarSig :: (OutputableBndr id) => [id] -> SDoc -> SDoc
pprVarSig :: forall id. OutputableBndr id => [id] -> SDoc -> SDoc
pprVarSig [id]
vars SDoc
pp_ty = [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
sep [SDoc
pprvars SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> SDoc
dcolon, Int -> SDoc -> SDoc
nest Int
2 SDoc
pp_ty]
  where
    pprvars :: SDoc
pprvars = [SDoc] -> SDoc
forall doc. IsLine doc => [doc] -> doc
hsep ([SDoc] -> SDoc) -> [SDoc] -> SDoc
forall a b. (a -> b) -> a -> b
$ SDoc -> [SDoc] -> [SDoc]
forall doc. IsLine doc => doc -> [doc] -> [doc]
punctuate SDoc
forall doc. IsLine doc => doc
comma ((id -> SDoc) -> [id] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map id -> SDoc
forall a. OutputableBndr a => a -> SDoc
pprPrefixOcc [id]
vars)

pprSpec :: (OutputableBndr id) => id -> SDoc -> InlinePragma -> SDoc
pprSpec :: forall id. OutputableBndr id => id -> SDoc -> InlinePragma -> SDoc
pprSpec id
var SDoc
pp_ty InlinePragma
inl = SDoc
pp_inl SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> [id] -> SDoc -> SDoc
forall id. OutputableBndr id => [id] -> SDoc -> SDoc
pprVarSig [id
var] SDoc
pp_ty
  where
    pp_inl :: SDoc
pp_inl | InlinePragma -> Bool
isDefaultInlinePragma InlinePragma
inl = SDoc
forall doc. IsOutput doc => doc
empty
           | Bool
otherwise = InlinePragma -> SDoc
pprInline InlinePragma
inl

pprTcSpecPrags :: TcSpecPrags -> SDoc
pprTcSpecPrags :: TcSpecPrags -> SDoc
pprTcSpecPrags TcSpecPrags
IsDefaultMethod = String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"<default method>"
pprTcSpecPrags (SpecPrags [LTcSpecPrag]
ps)  = [SDoc] -> SDoc
forall doc. IsDoc doc => [doc] -> doc
vcat ((LTcSpecPrag -> SDoc) -> [LTcSpecPrag] -> [SDoc]
forall a b. (a -> b) -> [a] -> [b]
map (TcSpecPrag -> SDoc
forall a. Outputable a => a -> SDoc
ppr (TcSpecPrag -> SDoc)
-> (LTcSpecPrag -> TcSpecPrag) -> LTcSpecPrag -> SDoc
forall b c a. (b -> c) -> (a -> b) -> a -> c
. LTcSpecPrag -> TcSpecPrag
forall l e. GenLocated l e -> e
unLoc) [LTcSpecPrag]
ps)

instance Outputable TcSpecPrag where
  ppr :: TcSpecPrag -> SDoc
ppr (SpecPrag TyVar
var HsWrapper
_ InlinePragma
inl)
    = String -> SDoc
forall doc. IsLine doc => String -> doc
text (SourceText -> String
extractSpecPragName (SourceText -> String) -> SourceText -> String
forall a b. (a -> b) -> a -> b
$ InlinePragma -> SourceText
inl_src InlinePragma
inl) SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> TyVar -> SDoc -> InlinePragma -> SDoc
forall id. OutputableBndr id => id -> SDoc -> InlinePragma -> SDoc
pprSpec TyVar
var (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"<type>") InlinePragma
inl

pprMinimalSig :: (OutputableBndr name)
              => LBooleanFormula (GenLocated l name) -> SDoc
pprMinimalSig :: forall name l.
OutputableBndr name =>
LBooleanFormula (GenLocated l name) -> SDoc
pprMinimalSig (L SrcSpanAnnL
_ BooleanFormula (GenLocated l name)
bf) = BooleanFormula name -> SDoc
forall a. Outputable a => a -> SDoc
ppr ((GenLocated l name -> name)
-> BooleanFormula (GenLocated l name) -> BooleanFormula name
forall a b. (a -> b) -> BooleanFormula a -> BooleanFormula b
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap GenLocated l name -> name
forall l e. GenLocated l e -> e
unLoc BooleanFormula (GenLocated l name)
bf)

{-
************************************************************************
*                                                                      *
\subsection{Anno instances}
*                                                                      *
************************************************************************
-}

type instance Anno (HsBindLR (GhcPass idL) (GhcPass idR)) = SrcSpanAnnA
type instance Anno (IPBind (GhcPass p)) = SrcSpanAnnA
type instance Anno (Sig (GhcPass p)) = SrcSpanAnnA

-- For CompleteMatchSig
type instance Anno [LocatedN RdrName] = SrcSpan
type instance Anno [LocatedN Name]    = SrcSpan
type instance Anno [LocatedN Id]      = SrcSpan

type instance Anno (FixitySig (GhcPass p)) = SrcSpanAnnA

type instance Anno StringLiteral = SrcAnn NoEpAnns
type instance Anno (LocatedN RdrName) = SrcSpan
type instance Anno (LocatedN Name) = SrcSpan
type instance Anno (LocatedN Id) = SrcSpan