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{-# LANGUAGE CPP #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE ConstraintKinds #-}
module GHC.Rename.Expr where

#if MIN_VERSION_GLASGOW_HASKELL(9,3,0,0)
import Data.Type.Equality (type (~))
#endif

import GHC.Types.Name
import GHC.Hs
import GHC.Types.Name.Set ( FreeVars )
import GHC.Tc.Types
import GHC.Utils.Outputable  ( Outputable )

rnExpr :: HsExpr GhcPs
        -> RnM (HsExpr GhcRn, FreeVars)

rnLExpr :: LHsExpr GhcPs
        -> RnM (LHsExpr GhcRn, FreeVars)

type AnnoBody body
  = ( Outputable (body GhcPs)
    , Anno (StmtLR GhcPs GhcPs (LocatedA (body GhcPs))) ~ SrcSpanAnnA
    , Anno (StmtLR GhcRn GhcPs (LocatedA (body GhcPs))) ~ SrcSpanAnnA
    , Anno (StmtLR GhcRn GhcRn (LocatedA (body GhcRn))) ~ SrcSpanAnnA
    )
rnStmts :: --forall thing body.
           AnnoBody body => HsStmtContext GhcRn
        -> (body GhcPs -> RnM (body GhcRn, FreeVars))
        -> [LStmt GhcPs (LocatedA (body GhcPs))]
        -> ([Name] -> RnM (thing, FreeVars))
        -> RnM (([LStmt GhcRn (LocatedA (body GhcRn))], thing), FreeVars)