{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE BlockArguments #-}
{-# LANGUAGE TupleSections #-}
module GHC.HsToCore.Arrows ( dsProcExpr ) where
import GHC.Prelude
import GHC.HsToCore.Match
import GHC.HsToCore.Utils
import GHC.HsToCore.Monad
import GHC.Hs
import GHC.Hs.Syn.Type
import {-# SOURCE #-} GHC.HsToCore.Expr ( dsExpr, dsLExpr, dsLocalBinds,
dsSyntaxExpr )
import GHC.Tc.Utils.TcType
import GHC.Core.Multiplicity
import GHC.Tc.Types.Evidence
import GHC.Core
import GHC.Core.FVs
import GHC.Core.Utils
import GHC.Core.Make
import GHC.HsToCore.Binds (dsHsWrapper)
import GHC.Types.Id
import GHC.Core.ConLike
import GHC.Builtin.Types
import GHC.Types.Basic
import GHC.Builtin.Names
import GHC.Utils.Outputable
import GHC.Utils.Panic
import GHC.Types.Var.Set
import GHC.Types.SrcLoc
import GHC.Data.List.SetOps( assocMaybe )
import Data.Foldable (toList)
import Data.List (mapAccumL)
import Data.List.NonEmpty (NonEmpty(..), nonEmpty)
import GHC.Utils.Misc
import GHC.Types.Unique.DSet
data DsCmdEnv = DsCmdEnv {
DsCmdEnv -> CoreExpr
arr_id, DsCmdEnv -> CoreExpr
compose_id, DsCmdEnv -> CoreExpr
first_id, DsCmdEnv -> CoreExpr
app_id, DsCmdEnv -> CoreExpr
choice_id, DsCmdEnv -> CoreExpr
loop_id :: CoreExpr
}
mkCmdEnv :: CmdSyntaxTable GhcTc -> DsM ([CoreBind], DsCmdEnv)
mkCmdEnv :: CmdSyntaxTable (GhcPass 'Typechecked) -> DsM ([CoreBind], DsCmdEnv)
mkCmdEnv CmdSyntaxTable (GhcPass 'Typechecked)
tc_meths
= do { (meth_binds, prs) <- ((Name, HsExpr (GhcPass 'Typechecked))
-> IOEnv (Env DsGblEnv DsLclEnv) (CoreBind, (Name, Id)))
-> CmdSyntaxTable (GhcPass 'Typechecked)
-> IOEnv (Env DsGblEnv DsLclEnv) ([CoreBind], [(Name, Id)])
forall (m :: * -> *) a b c.
Applicative m =>
(a -> m (b, c)) -> [a] -> m ([b], [c])
mapAndUnzipM (Name, HsExpr (GhcPass 'Typechecked))
-> IOEnv (Env DsGblEnv DsLclEnv) (CoreBind, (Name, Id))
forall {a}.
(a, HsExpr (GhcPass 'Typechecked))
-> IOEnv (Env DsGblEnv DsLclEnv) (CoreBind, (a, Id))
mk_bind CmdSyntaxTable (GhcPass 'Typechecked)
tc_meths
; let the_arr_id = [(Name, Id)] -> Name -> Maybe Id
forall a b. Eq a => Assoc a b -> a -> Maybe b
assocMaybe [(Name, Id)]
prs Name
arrAName
the_compose_id = [(Name, Id)] -> Name -> Maybe Id
forall a b. Eq a => Assoc a b -> a -> Maybe b
assocMaybe [(Name, Id)]
prs Name
composeAName
the_first_id = [(Name, Id)] -> Name -> Maybe Id
forall a b. Eq a => Assoc a b -> a -> Maybe b
assocMaybe [(Name, Id)]
prs Name
firstAName
the_app_id = [(Name, Id)] -> Name -> Maybe Id
forall a b. Eq a => Assoc a b -> a -> Maybe b
assocMaybe [(Name, Id)]
prs Name
appAName
the_choice_id = [(Name, Id)] -> Name -> Maybe Id
forall a b. Eq a => Assoc a b -> a -> Maybe b
assocMaybe [(Name, Id)]
prs Name
choiceAName
the_loop_id = [(Name, Id)] -> Name -> Maybe Id
forall a b. Eq a => Assoc a b -> a -> Maybe b
assocMaybe [(Name, Id)]
prs Name
loopAName
; return (meth_binds, DsCmdEnv {
arr_id = Var (unmaybe the_arr_id arrAName),
compose_id = Var (unmaybe the_compose_id composeAName),
first_id = Var (unmaybe the_first_id firstAName),
app_id = Var (unmaybe the_app_id appAName),
choice_id = Var (unmaybe the_choice_id choiceAName),
loop_id = Var (unmaybe the_loop_id loopAName)
}) }
where
mk_bind :: (a, HsExpr (GhcPass 'Typechecked))
-> IOEnv (Env DsGblEnv DsLclEnv) (CoreBind, (a, Id))
mk_bind (a
std_name, HsExpr (GhcPass 'Typechecked)
expr)
= do { rhs <- HsExpr (GhcPass 'Typechecked) -> DsM CoreExpr
dsExpr HsExpr (GhcPass 'Typechecked)
expr
; id <- newSysLocalMDs (exprType rhs)
; return (NonRec id rhs, (std_name, id)) }
unmaybe :: Maybe a -> a -> a
unmaybe Maybe a
Nothing a
name = String -> SDoc -> a
forall a. HasCallStack => String -> SDoc -> a
pprPanic String
"mkCmdEnv" (String -> SDoc
forall doc. IsLine doc => String -> doc
text String
"Not found:" SDoc -> SDoc -> SDoc
forall doc. IsLine doc => doc -> doc -> doc
<+> a -> SDoc
forall a. Outputable a => a -> SDoc
ppr a
name)
unmaybe (Just a
id) a
_ = a
id
do_arr :: DsCmdEnv -> Type -> Type -> CoreExpr -> CoreExpr
do_arr :: DsCmdEnv -> Type -> Type -> CoreExpr -> CoreExpr
do_arr DsCmdEnv
ids Type
b_ty Type
c_ty CoreExpr
f = CoreExpr -> [CoreExpr] -> CoreExpr
forall b. Expr b -> [Expr b] -> Expr b
mkApps (DsCmdEnv -> CoreExpr
arr_id DsCmdEnv
ids) [Type -> CoreExpr
forall b. Type -> Expr b
Type Type
b_ty, Type -> CoreExpr
forall b. Type -> Expr b
Type Type
c_ty, CoreExpr
f]
do_compose :: DsCmdEnv -> Type -> Type -> Type ->
CoreExpr -> CoreExpr -> CoreExpr
do_compose :: DsCmdEnv
-> Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr
do_compose DsCmdEnv
ids Type
b_ty Type
c_ty Type
d_ty CoreExpr
f CoreExpr
g
= CoreExpr -> [CoreExpr] -> CoreExpr
forall b. Expr b -> [Expr b] -> Expr b
mkApps (DsCmdEnv -> CoreExpr
compose_id DsCmdEnv
ids) [Type -> CoreExpr
forall b. Type -> Expr b
Type Type
b_ty, Type -> CoreExpr
forall b. Type -> Expr b
Type Type
c_ty, Type -> CoreExpr
forall b. Type -> Expr b
Type Type
d_ty, CoreExpr
f, CoreExpr
g]
do_first :: DsCmdEnv -> Type -> Type -> Type -> CoreExpr -> CoreExpr
do_first :: DsCmdEnv -> Type -> Type -> Type -> CoreExpr -> CoreExpr
do_first DsCmdEnv
ids Type
b_ty Type
c_ty Type
d_ty CoreExpr
f
= CoreExpr -> [CoreExpr] -> CoreExpr
forall b. Expr b -> [Expr b] -> Expr b
mkApps (DsCmdEnv -> CoreExpr
first_id DsCmdEnv
ids) [Type -> CoreExpr
forall b. Type -> Expr b
Type Type
b_ty, Type -> CoreExpr
forall b. Type -> Expr b
Type Type
c_ty, Type -> CoreExpr
forall b. Type -> Expr b
Type Type
d_ty, CoreExpr
f]
do_app :: DsCmdEnv -> Type -> Type -> CoreExpr
do_app :: DsCmdEnv -> Type -> Type -> CoreExpr
do_app DsCmdEnv
ids Type
b_ty Type
c_ty = CoreExpr -> [CoreExpr] -> CoreExpr
forall b. Expr b -> [Expr b] -> Expr b
mkApps (DsCmdEnv -> CoreExpr
app_id DsCmdEnv
ids) [Type -> CoreExpr
forall b. Type -> Expr b
Type Type
b_ty, Type -> CoreExpr
forall b. Type -> Expr b
Type Type
c_ty]
do_choice :: DsCmdEnv -> Type -> Type -> Type ->
CoreExpr -> CoreExpr -> CoreExpr
do_choice :: DsCmdEnv
-> Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr
do_choice DsCmdEnv
ids Type
b_ty Type
c_ty Type
d_ty CoreExpr
f CoreExpr
g
= CoreExpr -> [CoreExpr] -> CoreExpr
forall b. Expr b -> [Expr b] -> Expr b
mkApps (DsCmdEnv -> CoreExpr
choice_id DsCmdEnv
ids) [Type -> CoreExpr
forall b. Type -> Expr b
Type Type
b_ty, Type -> CoreExpr
forall b. Type -> Expr b
Type Type
d_ty, Type -> CoreExpr
forall b. Type -> Expr b
Type Type
c_ty, CoreExpr
f, CoreExpr
g]
do_loop :: DsCmdEnv -> Type -> Type -> Type -> CoreExpr -> CoreExpr
do_loop :: DsCmdEnv -> Type -> Type -> Type -> CoreExpr -> CoreExpr
do_loop DsCmdEnv
ids Type
b_ty Type
c_ty Type
d_ty CoreExpr
f
= CoreExpr -> [CoreExpr] -> CoreExpr
forall b. Expr b -> [Expr b] -> Expr b
mkApps (DsCmdEnv -> CoreExpr
loop_id DsCmdEnv
ids) [Type -> CoreExpr
forall b. Type -> Expr b
Type Type
b_ty, Type -> CoreExpr
forall b. Type -> Expr b
Type Type
d_ty, Type -> CoreExpr
forall b. Type -> Expr b
Type Type
c_ty, CoreExpr
f]
do_premap :: DsCmdEnv -> Type -> Type -> Type ->
CoreExpr -> CoreExpr -> CoreExpr
do_premap :: DsCmdEnv
-> Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr
do_premap DsCmdEnv
ids Type
b_ty Type
c_ty Type
d_ty CoreExpr
f CoreExpr
g
= DsCmdEnv
-> Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr
do_compose DsCmdEnv
ids Type
b_ty Type
c_ty Type
d_ty (DsCmdEnv -> Type -> Type -> CoreExpr -> CoreExpr
do_arr DsCmdEnv
ids Type
b_ty Type
c_ty CoreExpr
f) CoreExpr
g
mkFstExpr :: Type -> Type -> DsM CoreExpr
mkFstExpr :: Type -> Type -> DsM CoreExpr
mkFstExpr Type
a_ty Type
b_ty = do
a_var <- Type -> DsM Id
newSysLocalMDs Type
a_ty
b_var <- newSysLocalMDs b_ty
pair_var <- newSysLocalMDs (mkCorePairTy a_ty b_ty)
return (Lam pair_var
(coreCasePair pair_var a_var b_var (Var a_var)))
mkSndExpr :: Type -> Type -> DsM CoreExpr
mkSndExpr :: Type -> Type -> DsM CoreExpr
mkSndExpr Type
a_ty Type
b_ty = do
a_var <- Type -> DsM Id
newSysLocalMDs Type
a_ty
b_var <- newSysLocalMDs b_ty
pair_var <- newSysLocalMDs (mkCorePairTy a_ty b_ty)
return (Lam pair_var
(coreCasePair pair_var a_var b_var (Var b_var)))
coreCaseTuple :: Id -> [Id] -> CoreExpr -> DsM CoreExpr
coreCaseTuple :: Id -> [Id] -> CoreExpr -> DsM CoreExpr
coreCaseTuple Id
scrut_var [Id]
vars CoreExpr
body
= [Id] -> CoreExpr -> CoreExpr -> DsM CoreExpr
forall (m :: * -> *).
MonadUnique m =>
[Id] -> CoreExpr -> CoreExpr -> m CoreExpr
mkBigTupleCase [Id]
vars CoreExpr
body (Id -> CoreExpr
forall b. Id -> Expr b
Var Id
scrut_var)
coreCasePair :: Id -> Id -> Id -> CoreExpr -> CoreExpr
coreCasePair :: Id -> Id -> Id -> CoreExpr -> CoreExpr
coreCasePair Id
scrut_var Id
var1 Id
var2 CoreExpr
body
= CoreExpr -> Id -> Type -> [Alt Id] -> CoreExpr
forall b. Expr b -> b -> Type -> [Alt b] -> Expr b
Case (Id -> CoreExpr
forall b. Id -> Expr b
Var Id
scrut_var) Id
scrut_var (HasDebugCallStack => CoreExpr -> Type
CoreExpr -> Type
exprType CoreExpr
body)
[AltCon -> [Id] -> CoreExpr -> Alt Id
forall b. AltCon -> [b] -> Expr b -> Alt b
Alt (DataCon -> AltCon
DataAlt (Boxity -> Int -> DataCon
tupleDataCon Boxity
Boxed Int
2)) [Id
var1, Id
var2] CoreExpr
body]
mkCorePairTy :: Type -> Type -> Type
mkCorePairTy :: Type -> Type -> Type
mkCorePairTy Type
t1 Type
t2 = [Type] -> Type
mkBoxedTupleTy [Type
t1, Type
t2]
mkCorePairExpr :: CoreExpr -> CoreExpr -> CoreExpr
mkCorePairExpr :: CoreExpr -> CoreExpr -> CoreExpr
mkCorePairExpr CoreExpr
e1 CoreExpr
e2 = [CoreExpr] -> CoreExpr
mkCoreTup [CoreExpr
e1, CoreExpr
e2]
mkCoreUnitExpr :: CoreExpr
mkCoreUnitExpr :: CoreExpr
mkCoreUnitExpr = [CoreExpr] -> CoreExpr
mkCoreTup []
envStackType :: [Id] -> Type -> Type
envStackType :: [Id] -> Type -> Type
envStackType [Id]
ids Type
stack_ty = Type -> Type -> Type
mkCorePairTy ([Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
ids) Type
stack_ty
splitTypeAt :: Int -> Type -> ([Type], Type)
splitTypeAt :: Int -> Type -> ([Type], Type)
splitTypeAt Int
n Type
ty
| Int
n Int -> Int -> Bool
forall a. Eq a => a -> a -> Bool
== Int
0 = ([], Type
ty)
| Bool
otherwise = case Type -> [Type]
tcTyConAppArgs Type
ty of
[Type
t, Type
ty'] -> let ([Type]
ts, Type
ty_r) = Int -> Type -> ([Type], Type)
splitTypeAt (Int
nInt -> Int -> Int
forall a. Num a => a -> a -> a
-Int
1) Type
ty' in (Type
tType -> [Type] -> [Type]
forall a. a -> [a] -> [a]
:[Type]
ts, Type
ty_r)
[Type]
_ -> String -> SDoc -> ([Type], Type)
forall a. HasCallStack => String -> SDoc -> a
pprPanic String
"splitTypeAt" (Type -> SDoc
forall a. Outputable a => a -> SDoc
ppr Type
ty)
buildEnvStack :: [Id] -> Id -> CoreExpr
buildEnvStack :: [Id] -> Id -> CoreExpr
buildEnvStack [Id]
env_ids Id
stack_id
= CoreExpr -> CoreExpr -> CoreExpr
mkCorePairExpr ([Id] -> CoreExpr
mkBigCoreVarTup [Id]
env_ids) (Id -> CoreExpr
forall b. Id -> Expr b
Var Id
stack_id)
matchEnvStack :: [Id]
-> Id
-> CoreExpr
-> DsM CoreExpr
matchEnvStack :: [Id] -> Id -> CoreExpr -> DsM CoreExpr
matchEnvStack [Id]
env_ids Id
stack_id CoreExpr
body = do
tup_var <- Type -> DsM Id
newSysLocalMDs ([Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids)
match_env <- coreCaseTuple tup_var env_ids body
pair_id <- newSysLocalMDs (mkCorePairTy (idType tup_var) (idType stack_id))
return (Lam pair_id (coreCasePair pair_id tup_var stack_id match_env))
matchEnv :: [Id]
-> CoreExpr
-> DsM CoreExpr
matchEnv :: [Id] -> CoreExpr -> DsM CoreExpr
matchEnv [Id]
env_ids CoreExpr
body = do
tup_id <- Type -> DsM Id
newSysLocalMDs ([Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids)
tup_case <- coreCaseTuple tup_id env_ids body
return (Lam tup_id tup_case)
matchVarStack :: [Id] -> Id -> CoreExpr -> DsM (Id, CoreExpr)
matchVarStack :: [Id] -> Id -> CoreExpr -> DsM (Id, CoreExpr)
matchVarStack [] Id
stack_id CoreExpr
body = (Id, CoreExpr) -> DsM (Id, CoreExpr)
forall a. a -> IOEnv (Env DsGblEnv DsLclEnv) a
forall (m :: * -> *) a. Monad m => a -> m a
return (Id
stack_id, CoreExpr
body)
matchVarStack (Id
param_id:[Id]
param_ids) Id
stack_id CoreExpr
body = do
(tail_id, tail_code) <- [Id] -> Id -> CoreExpr -> DsM (Id, CoreExpr)
matchVarStack [Id]
param_ids Id
stack_id CoreExpr
body
pair_id <- newSysLocalMDs (mkCorePairTy (idType param_id) (idType tail_id))
return (pair_id, coreCasePair pair_id param_id tail_id tail_code)
mkHsEnvStackExpr :: [Id] -> Id -> LHsExpr GhcTc
mkHsEnvStackExpr :: [Id] -> Id -> LHsExpr (GhcPass 'Typechecked)
mkHsEnvStackExpr [Id]
env_ids Id
stack_id
= [LHsExpr (GhcPass 'Typechecked)]
-> XExplicitTuple (GhcPass 'Typechecked)
-> LHsExpr (GhcPass 'Typechecked)
forall (p :: Pass).
[LHsExpr (GhcPass p)]
-> XExplicitTuple (GhcPass p) -> LHsExpr (GhcPass p)
mkLHsTupleExpr [[IdP (GhcPass 'Typechecked)]
-> XExplicitTuple (GhcPass 'Typechecked)
-> LHsExpr (GhcPass 'Typechecked)
forall (p :: Pass) a.
IsSrcSpanAnn p a =>
[IdP (GhcPass p)]
-> XExplicitTuple (GhcPass p) -> LHsExpr (GhcPass p)
mkLHsVarTuple [IdP (GhcPass 'Typechecked)]
[Id]
env_ids XExplicitTuple (GhcPass 'Typechecked)
NoExtField
noExtField, IdP (GhcPass 'Typechecked) -> LHsExpr (GhcPass 'Typechecked)
forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LHsExpr (GhcPass p)
nlHsVar IdP (GhcPass 'Typechecked)
Id
stack_id]
XExplicitTuple (GhcPass 'Typechecked)
NoExtField
noExtField
dsProcExpr
:: LPat GhcTc
-> LHsCmdTop GhcTc
-> DsM CoreExpr
dsProcExpr :: LPat (GhcPass 'Typechecked)
-> LHsCmdTop (GhcPass 'Typechecked) -> DsM CoreExpr
dsProcExpr LPat (GhcPass 'Typechecked)
pat (L EpAnnCO
_ (HsCmdTop (CmdTopTc Type
_unitTy Type
cmd_ty CmdSyntaxTable (GhcPass 'Typechecked)
ids) LHsCmd (GhcPass 'Typechecked)
cmd)) = do
(meth_binds, meth_ids) <- CmdSyntaxTable (GhcPass 'Typechecked) -> DsM ([CoreBind], DsCmdEnv)
mkCmdEnv CmdSyntaxTable (GhcPass 'Typechecked)
ids
let locals = [Id] -> VarSet
mkVarSet (CollectFlag (GhcPass 'Typechecked)
-> LPat (GhcPass 'Typechecked) -> [IdP (GhcPass 'Typechecked)]
forall p. CollectPass p => CollectFlag p -> LPat p -> [IdP p]
collectPatBinders CollectFlag (GhcPass 'Typechecked)
CollWithDictBinders LPat (GhcPass 'Typechecked)
pat)
(core_cmd, _free_vars, env_ids)
<- dsfixCmd meth_ids locals unitTy cmd_ty cmd
let env_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids
let env_stk_ty = Type -> Type -> Type
mkCorePairTy Type
env_ty Type
unitTy
let env_stk_expr = CoreExpr -> CoreExpr -> CoreExpr
mkCorePairExpr ([Id] -> CoreExpr
mkBigCoreVarTup [Id]
env_ids) CoreExpr
mkCoreUnitExpr
fail_expr <- mkFailExpr (ArrowMatchCtxt ProcExpr) env_stk_ty
var <- selectSimpleMatchVarL ManyTy pat
match_code <- matchSimply (Var var) (ArrowMatchCtxt ProcExpr) ManyTy pat env_stk_expr fail_expr
let pat_ty = LPat (GhcPass 'Typechecked) -> Type
hsLPatType LPat (GhcPass 'Typechecked)
pat
let proc_code = DsCmdEnv
-> Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr
do_premap DsCmdEnv
meth_ids Type
pat_ty Type
env_stk_ty Type
cmd_ty
(Id -> CoreExpr -> CoreExpr
forall b. b -> Expr b -> Expr b
Lam Id
var CoreExpr
match_code)
CoreExpr
core_cmd
return (mkLets meth_binds proc_code)
dsLCmd :: DsCmdEnv -> IdSet -> Type -> Type -> LHsCmd GhcTc -> [Id]
-> DsM (CoreExpr, DIdSet)
dsLCmd :: DsCmdEnv
-> VarSet
-> Type
-> Type
-> LHsCmd (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsLCmd DsCmdEnv
ids VarSet
local_vars Type
stk_ty Type
res_ty LHsCmd (GhcPass 'Typechecked)
cmd [Id]
env_ids
= DsCmdEnv
-> VarSet
-> Type
-> Type
-> HsCmd (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stk_ty Type
res_ty (LocatedA (HsCmd (GhcPass 'Typechecked))
-> HsCmd (GhcPass 'Typechecked)
forall l e. GenLocated l e -> e
unLoc LHsCmd (GhcPass 'Typechecked)
LocatedA (HsCmd (GhcPass 'Typechecked))
cmd) [Id]
env_ids
dsCmd :: DsCmdEnv
-> IdSet
-> Type
-> Type
-> HsCmd GhcTc
-> [Id]
-> DsM (CoreExpr,
DIdSet)
dsCmd :: DsCmdEnv
-> VarSet
-> Type
-> Type
-> HsCmd (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty
(HsCmdArrApp XCmdArrApp (GhcPass 'Typechecked)
arrow_ty LHsExpr (GhcPass 'Typechecked)
arrow LHsExpr (GhcPass 'Typechecked)
arg HsArrAppType
HsFirstOrderApp Bool
_)
[Id]
env_ids = do
let
(Type
a_arg_ty, Type
_res_ty') = Type -> (Type, Type)
tcSplitAppTy XCmdArrApp (GhcPass 'Typechecked)
Type
arrow_ty
(Type
_a_ty, Type
arg_ty) = Type -> (Type, Type)
tcSplitAppTy Type
a_arg_ty
core_arrow <- LHsExpr (GhcPass 'Typechecked) -> DsM CoreExpr
dsLExpr LHsExpr (GhcPass 'Typechecked)
arrow
core_arg <- dsLExpr arg
stack_id <- newSysLocalMDs stack_ty
core_make_arg <- matchEnvStack env_ids stack_id core_arg
return (do_premap ids
(envStackType env_ids stack_ty)
arg_ty
res_ty
core_make_arg
core_arrow,
exprFreeIdsDSet core_arg `uniqDSetIntersectUniqSet` local_vars)
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty
(HsCmdArrApp XCmdArrApp (GhcPass 'Typechecked)
arrow_ty LHsExpr (GhcPass 'Typechecked)
arrow LHsExpr (GhcPass 'Typechecked)
arg HsArrAppType
HsHigherOrderApp Bool
_)
[Id]
env_ids = do
let
(Type
a_arg_ty, Type
_res_ty') = Type -> (Type, Type)
tcSplitAppTy XCmdArrApp (GhcPass 'Typechecked)
Type
arrow_ty
(Type
_a_ty, Type
arg_ty) = Type -> (Type, Type)
tcSplitAppTy Type
a_arg_ty
core_arrow <- LHsExpr (GhcPass 'Typechecked) -> DsM CoreExpr
dsLExpr LHsExpr (GhcPass 'Typechecked)
arrow
core_arg <- dsLExpr arg
stack_id <- newSysLocalMDs stack_ty
core_make_pair <- matchEnvStack env_ids stack_id
(mkCorePairExpr core_arrow core_arg)
return (do_premap ids
(envStackType env_ids stack_ty)
(mkCorePairTy arrow_ty arg_ty)
res_ty
core_make_pair
(do_app ids arg_ty res_ty),
(exprsFreeIdsDSet [core_arrow, core_arg])
`uniqDSetIntersectUniqSet` local_vars)
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty (HsCmdApp XCmdApp (GhcPass 'Typechecked)
_ LHsCmd (GhcPass 'Typechecked)
cmd LHsExpr (GhcPass 'Typechecked)
arg) [Id]
env_ids = do
core_arg <- LHsExpr (GhcPass 'Typechecked) -> DsM CoreExpr
dsLExpr LHsExpr (GhcPass 'Typechecked)
arg
let
arg_ty = HasDebugCallStack => CoreExpr -> Type
CoreExpr -> Type
exprType CoreExpr
core_arg
stack_ty' = Type -> Type -> Type
mkCorePairTy Type
arg_ty Type
stack_ty
(core_cmd, free_vars, env_ids')
<- dsfixCmd ids local_vars stack_ty' res_ty cmd
stack_id <- newSysLocalMDs stack_ty
arg_id <- newSysLocalMDs arg_ty
let
stack' = CoreExpr -> CoreExpr -> CoreExpr
mkCorePairExpr (Id -> CoreExpr
forall b. Id -> Expr b
Var Id
arg_id) (Id -> CoreExpr
forall b. Id -> Expr b
Var Id
stack_id)
core_body = HasDebugCallStack => Id -> CoreExpr -> CoreExpr -> CoreExpr
Id -> CoreExpr -> CoreExpr -> CoreExpr
bindNonRec Id
arg_id CoreExpr
core_arg
(CoreExpr -> CoreExpr -> CoreExpr
mkCorePairExpr ([Id] -> CoreExpr
mkBigCoreVarTup [Id]
env_ids') CoreExpr
stack')
core_map <- matchEnvStack env_ids stack_id core_body
return (do_premap ids
(envStackType env_ids stack_ty)
(envStackType env_ids' stack_ty')
res_ty
core_map
core_cmd,
free_vars `unionDVarSet`
(exprFreeIdsDSet core_arg `uniqDSetIntersectUniqSet` local_vars))
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty (HsCmdPar XCmdPar (GhcPass 'Typechecked)
_ LHsCmd (GhcPass 'Typechecked)
cmd) [Id]
env_ids
= DsCmdEnv
-> VarSet
-> Type
-> Type
-> LHsCmd (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsLCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty LHsCmd (GhcPass 'Typechecked)
cmd [Id]
env_ids
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty (HsCmdIf XCmdIf (GhcPass 'Typechecked)
_ SyntaxExpr (GhcPass 'Typechecked)
mb_fun LHsExpr (GhcPass 'Typechecked)
cond LHsCmd (GhcPass 'Typechecked)
then_cmd LHsCmd (GhcPass 'Typechecked)
else_cmd)
[Id]
env_ids = do
core_cond <- LHsExpr (GhcPass 'Typechecked) -> DsM CoreExpr
dsLExpr LHsExpr (GhcPass 'Typechecked)
cond
(core_then, fvs_then, then_ids)
<- dsfixCmd ids local_vars stack_ty res_ty then_cmd
(core_else, fvs_else, else_ids)
<- dsfixCmd ids local_vars stack_ty res_ty else_cmd
stack_id <- newSysLocalMDs stack_ty
either_con <- dsLookupTyCon eitherTyConName
left_con <- dsLookupDataCon leftDataConName
right_con <- dsLookupDataCon rightDataConName
let mk_left_expr Type
ty1 Type
ty2 CoreExpr
e = DataCon -> [CoreExpr] -> CoreExpr
mkCoreConApps DataCon
left_con [Type -> CoreExpr
forall b. Type -> Expr b
Type Type
ty1,Type -> CoreExpr
forall b. Type -> Expr b
Type Type
ty2, CoreExpr
e]
mk_right_expr Type
ty1 Type
ty2 CoreExpr
e = DataCon -> [CoreExpr] -> CoreExpr
mkCoreConApps DataCon
right_con [Type -> CoreExpr
forall b. Type -> Expr b
Type Type
ty1,Type -> CoreExpr
forall b. Type -> Expr b
Type Type
ty2, CoreExpr
e]
in_ty = [Id] -> Type -> Type
envStackType [Id]
env_ids Type
stack_ty
then_ty = [Id] -> Type -> Type
envStackType [Id]
then_ids Type
stack_ty
else_ty = [Id] -> Type -> Type
envStackType [Id]
else_ids Type
stack_ty
sum_ty = TyCon -> [Type] -> Type
mkTyConApp TyCon
either_con [Type
then_ty, Type
else_ty]
fvs_cond = CoreExpr -> DIdSet
exprFreeIdsDSet CoreExpr
core_cond
DIdSet -> VarSet -> DIdSet
forall a. UniqDSet a -> UniqSet a -> UniqDSet a
`uniqDSetIntersectUniqSet` VarSet
local_vars
core_left = Type -> Type -> CoreExpr -> CoreExpr
mk_left_expr Type
then_ty Type
else_ty
([Id] -> Id -> CoreExpr
buildEnvStack [Id]
then_ids Id
stack_id)
core_right = Type -> Type -> CoreExpr -> CoreExpr
mk_right_expr Type
then_ty Type
else_ty
([Id] -> Id -> CoreExpr
buildEnvStack [Id]
else_ids Id
stack_id)
core_if <- case mb_fun of
SyntaxExpr (GhcPass 'Typechecked)
SyntaxExprTc
NoSyntaxExprTc -> [Id] -> Id -> CoreExpr -> DsM CoreExpr
matchEnvStack [Id]
env_ids Id
stack_id (CoreExpr -> DsM CoreExpr) -> CoreExpr -> DsM CoreExpr
forall a b. (a -> b) -> a -> b
$
CoreExpr -> CoreExpr -> CoreExpr -> CoreExpr
mkIfThenElse CoreExpr
core_cond CoreExpr
core_left CoreExpr
core_right
SyntaxExpr (GhcPass 'Typechecked)
_ -> do { fun_apps <- SyntaxExpr (GhcPass 'Typechecked) -> [CoreExpr] -> DsM CoreExpr
dsSyntaxExpr SyntaxExpr (GhcPass 'Typechecked)
mb_fun
[CoreExpr
core_cond, CoreExpr
core_left, CoreExpr
core_right]
; matchEnvStack env_ids stack_id fun_apps }
return (do_premap ids in_ty sum_ty res_ty
core_if
(do_choice ids then_ty else_ty res_ty core_then core_else),
fvs_cond `unionDVarSet` fvs_then `unionDVarSet` fvs_else)
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty (HsCmdCase XCmdCase (GhcPass 'Typechecked)
_ LHsExpr (GhcPass 'Typechecked)
exp MatchGroup (GhcPass 'Typechecked) (LHsCmd (GhcPass 'Typechecked))
match) [Id]
env_ids = do
stack_id <- Type -> DsM Id
newSysLocalMDs Type
stack_ty
(match', core_choices)
<- dsCases ids local_vars stack_id stack_ty res_ty match
let MG{ mg_ext = MatchGroupTc _ sum_ty _ } = match'
in_ty = [Id] -> Type -> Type
envStackType [Id]
env_ids Type
stack_ty
core_body <- dsExpr (HsCase (ArrowMatchCtxt ArrowCaseAlt) exp match')
core_matches <- matchEnvStack env_ids stack_id core_body
return (do_premap ids in_ty sum_ty res_ty core_matches core_choices,
exprFreeIdsDSet core_body `uniqDSetIntersectUniqSet` local_vars)
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty
(HsCmdLam XCmdLamCase (GhcPass 'Typechecked)
_ HsLamVariant
LamSingle (MG { mg_alts :: forall p body. MatchGroup p body -> XRec p [LMatch p body]
mg_alts
= (L SrcSpanAnnLW
_ [L SrcSpanAnnA
_ (Match { m_pats :: forall p body. Match p body -> XRec p [LPat p]
m_pats = L EpaLocation
_ [GenLocated SrcSpanAnnA (Pat (GhcPass 'Typechecked))]
pats
, m_grhss :: forall p body. Match p body -> GRHSs p body
m_grhss = GRHSs XCGRHSs
(GhcPass 'Typechecked) (LocatedA (HsCmd (GhcPass 'Typechecked)))
_ [L EpAnnCO
_ (GRHS XCGRHS
(GhcPass 'Typechecked) (LocatedA (HsCmd (GhcPass 'Typechecked)))
_ [] LocatedA (HsCmd (GhcPass 'Typechecked))
body)] HsLocalBinds (GhcPass 'Typechecked)
_ })]) }))
[Id]
env_ids
= DsCmdEnv
-> VarSet
-> Type
-> Type
-> [LPat (GhcPass 'Typechecked)]
-> LHsCmd (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdLam DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty [LPat (GhcPass 'Typechecked)]
[GenLocated SrcSpanAnnA (Pat (GhcPass 'Typechecked))]
pats LHsCmd (GhcPass 'Typechecked)
LocatedA (HsCmd (GhcPass 'Typechecked))
body [Id]
env_ids
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty
(HsCmdLam XCmdLamCase (GhcPass 'Typechecked)
_ HsLamVariant
lam_variant match :: MatchGroup (GhcPass 'Typechecked) (LHsCmd (GhcPass 'Typechecked))
match@MG { mg_ext :: forall p body. MatchGroup p body -> XMG p body
mg_ext = MatchGroupTc {mg_arg_tys :: MatchGroupTc -> [Scaled Type]
mg_arg_tys = [Scaled Type]
arg_tys} } )
[Id]
env_ids = do
arg_ids <- [Scaled Type] -> DsM [Id]
newSysLocalsDs [Scaled Type]
arg_tys
let match_ctxt = HsLamVariant -> HsArrowMatchContext
ArrowLamAlt HsLamVariant
lam_variant
pat_vars = [Id] -> VarSet
mkVarSet [Id]
arg_ids
local_vars' = VarSet
pat_vars VarSet -> VarSet -> VarSet
`unionVarSet` VarSet
local_vars
(pat_tys, stack_ty') = splitTypeAt (length arg_tys) stack_ty
(core_body, free_vars, env_ids') <- trimInput \[Id]
env_ids -> do
stack_id <- Type -> DsM Id
newSysLocalMDs Type
stack_ty'
(match', core_choices)
<- dsCases ids local_vars' stack_id stack_ty' res_ty match
let MG{ mg_ext = MatchGroupTc _ sum_ty _ } = match'
in_ty = [Id] -> Type -> Type
envStackType [Id]
env_ids Type
stack_ty'
discrims = (Id -> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))
-> [Id] -> [GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))]
forall a b. (a -> b) -> [a] -> [b]
map IdP (GhcPass 'Typechecked) -> LHsExpr (GhcPass 'Typechecked)
Id -> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
forall (p :: Pass) a.
IsSrcSpanAnn p a =>
IdP (GhcPass p) -> LHsExpr (GhcPass p)
nlHsVar [Id]
arg_ids
(discrim_vars, matching_code)
<- matchWrapper (ArrowMatchCtxt match_ctxt) (Just discrims) match'
core_body <- flip (bind_vars discrim_vars) matching_code <$>
traverse dsLExpr discrims
core_matches <- matchEnvStack env_ids stack_id core_body
return (do_premap ids in_ty sum_ty res_ty core_matches core_choices,
exprFreeIdsDSet core_body `uniqDSetIntersectUniqSet` local_vars')
param_ids <- newSysLocalsMDs pat_tys
stack_id' <- newSysLocalMDs stack_ty'
let
core_expr = [Id] -> Id -> CoreExpr
buildEnvStack [Id]
env_ids' Id
stack_id'
in_ty = [Id] -> Type -> Type
envStackType [Id]
env_ids Type
stack_ty
in_ty' = [Id] -> Type -> Type
envStackType [Id]
env_ids' Type
stack_ty'
let match_code = [Id] -> [CoreExpr] -> CoreExpr -> CoreExpr
bind_vars [Id]
arg_ids ((Id -> CoreExpr) -> [Id] -> [CoreExpr]
forall a b. (a -> b) -> [a] -> [b]
map Id -> CoreExpr
forall b. Id -> Expr b
Var [Id]
param_ids) CoreExpr
core_expr
(stack_id, param_code) <- matchVarStack param_ids stack_id' match_code
select_code <- matchEnvStack env_ids stack_id param_code
return (do_premap ids in_ty in_ty' res_ty select_code core_body,
free_vars `uniqDSetMinusUniqSet` pat_vars)
where
bind_vars :: [Id] -> [CoreExpr] -> CoreExpr -> CoreExpr
bind_vars [Id]
vars [CoreExpr]
exprs CoreExpr
expr = ((Id, CoreExpr) -> CoreExpr -> CoreExpr)
-> CoreExpr -> [(Id, CoreExpr)] -> CoreExpr
forall a b. (a -> b -> b) -> b -> [a] -> b
forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr ((Id -> CoreExpr -> CoreExpr -> CoreExpr)
-> (Id, CoreExpr) -> CoreExpr -> CoreExpr
forall a b c. (a -> b -> c) -> (a, b) -> c
uncurry HasDebugCallStack => Id -> CoreExpr -> CoreExpr -> CoreExpr
Id -> CoreExpr -> CoreExpr -> CoreExpr
bindNonRec) CoreExpr
expr ([(Id, CoreExpr)] -> CoreExpr) -> [(Id, CoreExpr)] -> CoreExpr
forall a b. (a -> b) -> a -> b
$ [Id] -> [CoreExpr] -> [(Id, CoreExpr)]
forall a b. [a] -> [b] -> [(a, b)]
zip [Id]
vars [CoreExpr]
exprs
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty (HsCmdLet XCmdLet (GhcPass 'Typechecked)
_ lbinds :: HsLocalBinds (GhcPass 'Typechecked)
lbinds@HsLocalBinds (GhcPass 'Typechecked)
binds LHsCmd (GhcPass 'Typechecked)
body) [Id]
env_ids = do
let
defined_vars :: VarSet
defined_vars = [Id] -> VarSet
mkVarSet (CollectFlag (GhcPass 'Typechecked)
-> HsLocalBinds (GhcPass 'Typechecked)
-> [IdP (GhcPass 'Typechecked)]
forall (idL :: Pass) (idR :: Pass).
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> HsLocalBindsLR (GhcPass idL) (GhcPass idR)
-> [IdP (GhcPass idL)]
collectLocalBinders CollectFlag (GhcPass 'Typechecked)
CollWithDictBinders HsLocalBinds (GhcPass 'Typechecked)
binds)
local_vars' :: VarSet
local_vars' = VarSet
defined_vars VarSet -> VarSet -> VarSet
`unionVarSet` VarSet
local_vars
(core_body, _free_vars, env_ids')
<- DsCmdEnv
-> VarSet
-> Type
-> Type
-> LHsCmd (GhcPass 'Typechecked)
-> DsM (CoreExpr, DIdSet, [Id])
dsfixCmd DsCmdEnv
ids VarSet
local_vars' Type
stack_ty Type
res_ty LHsCmd (GhcPass 'Typechecked)
body
stack_id <- newSysLocalMDs stack_ty
core_binds <- dsLocalBinds lbinds (buildEnvStack env_ids' stack_id)
core_map <- matchEnvStack env_ids stack_id core_binds
return (do_premap ids
(envStackType env_ids stack_ty)
(envStackType env_ids' stack_ty)
res_ty
core_map
core_body,
exprFreeIdsDSet core_binds `uniqDSetIntersectUniqSet` local_vars)
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty (HsCmdDo XCmdDo (GhcPass 'Typechecked)
_ (L SrcSpanAnnLW
_ [GenLocated
SrcSpanAnnA
(StmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LocatedA (HsCmd (GhcPass 'Typechecked))))]
stmts)) [Id]
env_ids = do
(core_stmts, env_ids') <- DsCmdEnv
-> VarSet
-> Type
-> [CmdLStmt (GhcPass 'Typechecked)]
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdDo DsCmdEnv
ids VarSet
local_vars Type
res_ty [CmdLStmt (GhcPass 'Typechecked)]
[GenLocated
SrcSpanAnnA
(StmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LocatedA (HsCmd (GhcPass 'Typechecked))))]
stmts [Id]
env_ids
let env_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids
core_fst <- mkFstExpr env_ty stack_ty
return (do_premap ids
(mkCorePairTy env_ty stack_ty)
env_ty
res_ty
core_fst
core_stmts,
env_ids')
dsCmd DsCmdEnv
_ VarSet
local_vars Type
_stack_ty Type
_res_ty (HsCmdArrForm XCmdArrForm (GhcPass 'Typechecked)
_ LHsExpr (GhcPass 'Typechecked)
op LexicalFixity
_ [LHsCmdTop (GhcPass 'Typechecked)]
args) [Id]
env_ids = do
let env_ty :: Type
env_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids
core_op <- LHsExpr (GhcPass 'Typechecked) -> DsM CoreExpr
dsLExpr LHsExpr (GhcPass 'Typechecked)
op
(core_args, fv_sets) <- mapAndUnzipM (dsTrimCmdArg local_vars env_ids) args
return (mkApps (App core_op (Type env_ty)) core_args,
unionDVarSets fv_sets)
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty (XCmd (HsWrap HsWrapper
wrap HsCmd (GhcPass 'Typechecked)
cmd)) [Id]
env_ids = do
(core_cmd, env_ids') <- DsCmdEnv
-> VarSet
-> Type
-> Type
-> HsCmd (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmd DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty HsCmd (GhcPass 'Typechecked)
cmd [Id]
env_ids
dsHsWrapper wrap $ \CoreExpr -> CoreExpr
core_wrap ->
(CoreExpr, DIdSet) -> DsM (CoreExpr, DIdSet)
forall a. a -> IOEnv (Env DsGblEnv DsLclEnv) a
forall (m :: * -> *) a. Monad m => a -> m a
return (CoreExpr -> CoreExpr
core_wrap CoreExpr
core_cmd, DIdSet
env_ids')
dsTrimCmdArg
:: IdSet
-> [Id]
-> LHsCmdTop GhcTc
-> DsM (CoreExpr,
DIdSet)
dsTrimCmdArg :: VarSet
-> [Id]
-> LHsCmdTop (GhcPass 'Typechecked)
-> DsM (CoreExpr, DIdSet)
dsTrimCmdArg VarSet
local_vars [Id]
env_ids
(L EpAnnCO
_ (HsCmdTop
(CmdTopTc Type
stack_ty Type
cmd_ty CmdSyntaxTable (GhcPass 'Typechecked)
ids) LHsCmd (GhcPass 'Typechecked)
cmd )) = do
(meth_binds, meth_ids) <- CmdSyntaxTable (GhcPass 'Typechecked) -> DsM ([CoreBind], DsCmdEnv)
mkCmdEnv CmdSyntaxTable (GhcPass 'Typechecked)
ids
(core_cmd, free_vars, env_ids')
<- dsfixCmd meth_ids local_vars stack_ty cmd_ty cmd
stack_id <- newSysLocalMDs stack_ty
trim_code
<- matchEnvStack env_ids stack_id (buildEnvStack env_ids' stack_id)
let
in_ty = [Id] -> Type -> Type
envStackType [Id]
env_ids Type
stack_ty
in_ty' = [Id] -> Type -> Type
envStackType [Id]
env_ids' Type
stack_ty
arg_code = if [Id]
env_ids' [Id] -> [Id] -> Bool
forall a. Eq a => a -> a -> Bool
== [Id]
env_ids then CoreExpr
core_cmd else
DsCmdEnv
-> Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr
do_premap DsCmdEnv
meth_ids Type
in_ty Type
in_ty' Type
cmd_ty CoreExpr
trim_code CoreExpr
core_cmd
return (mkLets meth_binds arg_code, free_vars)
dsfixCmd
:: DsCmdEnv
-> IdSet
-> Type
-> Type
-> LHsCmd GhcTc
-> DsM (CoreExpr,
DIdSet,
[Id])
dsfixCmd :: DsCmdEnv
-> VarSet
-> Type
-> Type
-> LHsCmd (GhcPass 'Typechecked)
-> DsM (CoreExpr, DIdSet, [Id])
dsfixCmd DsCmdEnv
ids VarSet
local_vars Type
stk_ty Type
cmd_ty LHsCmd (GhcPass 'Typechecked)
cmd
= ([Id] -> DsM (CoreExpr, DIdSet)) -> DsM (CoreExpr, DIdSet, [Id])
trimInput (DsCmdEnv
-> VarSet
-> Type
-> Type
-> LHsCmd (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsLCmd DsCmdEnv
ids VarSet
local_vars Type
stk_ty Type
cmd_ty LHsCmd (GhcPass 'Typechecked)
cmd)
trimInput
:: ([Id] -> DsM (CoreExpr, DIdSet))
-> DsM (CoreExpr,
DIdSet,
[Id])
trimInput :: ([Id] -> DsM (CoreExpr, DIdSet)) -> DsM (CoreExpr, DIdSet, [Id])
trimInput [Id] -> DsM (CoreExpr, DIdSet)
build_arrow
= ((CoreExpr, DIdSet, [Id]) -> DsM (CoreExpr, DIdSet, [Id]))
-> DsM (CoreExpr, DIdSet, [Id])
forall a. (a -> DsM a) -> DsM a
fixDs (\ ~(CoreExpr
_,DIdSet
_,[Id]
env_ids) -> do
(core_cmd, free_vars) <- [Id] -> DsM (CoreExpr, DIdSet)
build_arrow [Id]
env_ids
return (core_cmd, free_vars, dVarSetElems free_vars))
dsCmdLam :: DsCmdEnv
-> IdSet
-> Type
-> Type
-> [LPat GhcTc]
-> LHsCmd GhcTc
-> [Id]
-> DsM (CoreExpr,
DIdSet)
dsCmdLam :: DsCmdEnv
-> VarSet
-> Type
-> Type
-> [LPat (GhcPass 'Typechecked)]
-> LHsCmd (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdLam DsCmdEnv
ids VarSet
local_vars Type
stack_ty Type
res_ty [LPat (GhcPass 'Typechecked)]
pats LHsCmd (GhcPass 'Typechecked)
body [Id]
env_ids = do
let pat_vars :: VarSet
pat_vars = [Id] -> VarSet
mkVarSet (CollectFlag (GhcPass 'Typechecked)
-> [LPat (GhcPass 'Typechecked)] -> [IdP (GhcPass 'Typechecked)]
forall p. CollectPass p => CollectFlag p -> [LPat p] -> [IdP p]
collectPatsBinders CollectFlag (GhcPass 'Typechecked)
CollWithDictBinders [LPat (GhcPass 'Typechecked)]
pats)
let local_vars' :: VarSet
local_vars' = VarSet
pat_vars VarSet -> VarSet -> VarSet
`unionVarSet` VarSet
local_vars
([Type]
pat_tys, Type
stack_ty') = Int -> Type -> ([Type], Type)
splitTypeAt ([GenLocated SrcSpanAnnA (Pat (GhcPass 'Typechecked))] -> Int
forall a. [a] -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length [LPat (GhcPass 'Typechecked)]
[GenLocated SrcSpanAnnA (Pat (GhcPass 'Typechecked))]
pats) Type
stack_ty
(core_body, free_vars, env_ids')
<- DsCmdEnv
-> VarSet
-> Type
-> Type
-> LHsCmd (GhcPass 'Typechecked)
-> DsM (CoreExpr, DIdSet, [Id])
dsfixCmd DsCmdEnv
ids VarSet
local_vars' Type
stack_ty' Type
res_ty LHsCmd (GhcPass 'Typechecked)
body
param_ids <- newSysLocalsMDs pat_tys
stack_id' <- newSysLocalMDs stack_ty'
let
core_expr = [Id] -> Id -> CoreExpr
buildEnvStack [Id]
env_ids' Id
stack_id'
in_ty = [Id] -> Type -> Type
envStackType [Id]
env_ids Type
stack_ty
in_ty' = [Id] -> Type -> Type
envStackType [Id]
env_ids' Type
stack_ty'
lam_cxt = HsArrowMatchContext -> HsMatchContext fn
forall fn. HsArrowMatchContext -> HsMatchContext fn
ArrowMatchCtxt (HsLamVariant -> HsArrowMatchContext
ArrowLamAlt HsLamVariant
LamSingle)
fail_expr <- mkFailExpr lam_cxt in_ty'
match_code <- matchSimplys (map Var param_ids) lam_cxt pats core_expr
fail_expr
(stack_id, param_code) <- matchVarStack param_ids stack_id' match_code
select_code <- matchEnvStack env_ids stack_id param_code
return (do_premap ids in_ty in_ty' res_ty select_code core_body,
free_vars `uniqDSetMinusUniqSet` pat_vars)
dsCases :: DsCmdEnv
-> IdSet
-> Id
-> Type
-> Type
-> MatchGroup GhcTc (LHsCmd GhcTc)
-> DsM (MatchGroup GhcTc (LHsExpr GhcTc),
CoreExpr)
dsCases :: DsCmdEnv
-> VarSet
-> Id
-> Type
-> Type
-> MatchGroup
(GhcPass 'Typechecked) (LHsCmd (GhcPass 'Typechecked))
-> DsM
(MatchGroup
(GhcPass 'Typechecked) (LHsExpr (GhcPass 'Typechecked)),
CoreExpr)
dsCases DsCmdEnv
ids VarSet
local_vars Id
stack_id Type
stack_ty Type
res_ty
(MG { mg_alts :: forall p body. MatchGroup p body -> XRec p [LMatch p body]
mg_alts = L SrcSpanAnnLW
l [GenLocated
SrcSpanAnnA
(Match
(GhcPass 'Typechecked) (LocatedA (HsCmd (GhcPass 'Typechecked))))]
matches
, mg_ext :: forall p body. MatchGroup p body -> XMG p body
mg_ext = MatchGroupTc [Scaled Type]
arg_tys Type
_ Origin
origin
}) = do
let leaves :: [(LocatedA (HsCmd (GhcPass 'Typechecked)), VarSet)]
leaves = (GenLocated
SrcSpanAnnA
(Match
(GhcPass 'Typechecked) (LocatedA (HsCmd (GhcPass 'Typechecked))))
-> [(LocatedA (HsCmd (GhcPass 'Typechecked)), VarSet)])
-> [GenLocated
SrcSpanAnnA
(Match
(GhcPass 'Typechecked) (LocatedA (HsCmd (GhcPass 'Typechecked))))]
-> [(LocatedA (HsCmd (GhcPass 'Typechecked)), VarSet)]
forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap LMatch
(GhcPass 'Typechecked) (LocatedA (HsCmd (GhcPass 'Typechecked)))
-> [(LocatedA (HsCmd (GhcPass 'Typechecked)), VarSet)]
GenLocated
SrcSpanAnnA
(Match
(GhcPass 'Typechecked) (LocatedA (HsCmd (GhcPass 'Typechecked))))
-> [(LocatedA (HsCmd (GhcPass 'Typechecked)), VarSet)]
forall (body :: * -> *).
LMatch
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
-> [(LocatedA (body (GhcPass 'Typechecked)), VarSet)]
leavesMatch [GenLocated
SrcSpanAnnA
(Match
(GhcPass 'Typechecked) (LocatedA (HsCmd (GhcPass 'Typechecked))))]
matches
make_branch :: (LocatedA (HsCmd (GhcPass 'Typechecked)), VarSet)
-> IOEnv
(Env DsGblEnv DsLclEnv)
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
make_branch (LocatedA (HsCmd (GhcPass 'Typechecked))
leaf, VarSet
bound_vars) = do
(core_leaf, _fvs, leaf_ids)
<- DsCmdEnv
-> VarSet
-> Type
-> Type
-> LHsCmd (GhcPass 'Typechecked)
-> DsM (CoreExpr, DIdSet, [Id])
dsfixCmd DsCmdEnv
ids (VarSet
bound_vars VarSet -> VarSet -> VarSet
`unionVarSet` VarSet
local_vars) Type
stack_ty
Type
res_ty LHsCmd (GhcPass 'Typechecked)
LocatedA (HsCmd (GhcPass 'Typechecked))
leaf
return ([mkHsEnvStackExpr leaf_ids stack_id],
envStackType leaf_ids stack_ty,
core_leaf)
branches <- ((LocatedA (HsCmd (GhcPass 'Typechecked)), VarSet)
-> IOEnv
(Env DsGblEnv DsLclEnv)
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr))
-> [(LocatedA (HsCmd (GhcPass 'Typechecked)), VarSet)]
-> IOEnv
(Env DsGblEnv DsLclEnv)
[([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
forall (m :: * -> *) a b. Monad m => (a -> m b) -> [a] -> m [b]
mapM (LocatedA (HsCmd (GhcPass 'Typechecked)), VarSet)
-> IOEnv
(Env DsGblEnv DsLclEnv)
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
make_branch [(LocatedA (HsCmd (GhcPass 'Typechecked)), VarSet)]
leaves
either_con <- dsLookupTyCon eitherTyConName
left_con <- dsLookupDataCon leftDataConName
right_con <- dsLookupDataCon rightDataConName
void_ty <- mkTyConTy <$> dsLookupTyCon voidTyConName
let
left_id = ConLike -> HsExpr (GhcPass 'Typechecked)
mkConLikeTc (DataCon -> ConLike
RealDataCon DataCon
left_con)
right_id = ConLike -> HsExpr (GhcPass 'Typechecked)
mkConLikeTc (DataCon -> ConLike
RealDataCon DataCon
right_con)
left_expr Type
ty1 Type
ty2 GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
e = HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
forall e a. HasAnnotation e => a -> GenLocated e a
noLocA (HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))
-> HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
forall a b. (a -> b) -> a -> b
$ XApp (GhcPass 'Typechecked)
-> LHsExpr (GhcPass 'Typechecked)
-> LHsExpr (GhcPass 'Typechecked)
-> HsExpr (GhcPass 'Typechecked)
forall p. XApp p -> LHsExpr p -> LHsExpr p -> HsExpr p
HsApp XApp (GhcPass 'Typechecked)
NoExtField
noExtField
(HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
forall e a. HasAnnotation e => a -> GenLocated e a
noLocA (HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))
-> HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
forall a b. (a -> b) -> a -> b
$ HsWrapper
-> HsExpr (GhcPass 'Typechecked) -> HsExpr (GhcPass 'Typechecked)
mkHsWrap ([Type] -> HsWrapper
mkWpTyApps [Type
ty1, Type
ty2]) HsExpr (GhcPass 'Typechecked)
left_id ) LHsExpr (GhcPass 'Typechecked)
GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
e
right_expr Type
ty1 Type
ty2 GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
e = HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
forall e a. HasAnnotation e => a -> GenLocated e a
noLocA (HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))
-> HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
forall a b. (a -> b) -> a -> b
$ XApp (GhcPass 'Typechecked)
-> LHsExpr (GhcPass 'Typechecked)
-> LHsExpr (GhcPass 'Typechecked)
-> HsExpr (GhcPass 'Typechecked)
forall p. XApp p -> LHsExpr p -> LHsExpr p -> HsExpr p
HsApp XApp (GhcPass 'Typechecked)
NoExtField
noExtField
(HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
forall e a. HasAnnotation e => a -> GenLocated e a
noLocA (HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))
-> HsExpr (GhcPass 'Typechecked)
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
forall a b. (a -> b) -> a -> b
$ HsWrapper
-> HsExpr (GhcPass 'Typechecked) -> HsExpr (GhcPass 'Typechecked)
mkHsWrap ([Type] -> HsWrapper
mkWpTyApps [Type
ty1, Type
ty2]) HsExpr (GhcPass 'Typechecked)
right_id) LHsExpr (GhcPass 'Typechecked)
GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
e
merge_branches :: ([LHsExpr GhcTc], Type, CoreExpr)
-> ([LHsExpr GhcTc], Type, CoreExpr)
-> ([LHsExpr GhcTc], Type, CoreExpr)
merge_branches ([LHsExpr (GhcPass 'Typechecked)]
builds1, Type
in_ty1, CoreExpr
core_exp1)
([LHsExpr (GhcPass 'Typechecked)]
builds2, Type
in_ty2, CoreExpr
core_exp2)
= ((GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))
-> [GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))]
-> [GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))]
forall a b. (a -> b) -> [a] -> [b]
map (Type
-> Type
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
left_expr Type
in_ty1 Type
in_ty2) [LHsExpr (GhcPass 'Typechecked)]
[GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))]
builds1 [GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))]
-> [GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))]
-> [GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))]
forall a. [a] -> [a] -> [a]
++
(GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))
-> [GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))]
-> [GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))]
forall a b. (a -> b) -> [a] -> [b]
map (Type
-> Type
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
-> GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))
right_expr Type
in_ty1 Type
in_ty2) [LHsExpr (GhcPass 'Typechecked)]
[GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))]
builds2,
TyCon -> [Type] -> Type
mkTyConApp TyCon
either_con [Type
in_ty1, Type
in_ty2],
DsCmdEnv
-> Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr
do_choice DsCmdEnv
ids Type
in_ty1 Type
in_ty2 Type
res_ty CoreExpr
core_exp1 CoreExpr
core_exp2)
(leaves', sum_ty, core_choices) <- case nonEmpty branches of
Just NonEmpty
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
bs -> ([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
-> IOEnv
(Env DsGblEnv DsLclEnv)
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
forall a. a -> IOEnv (Env DsGblEnv DsLclEnv) a
forall (m :: * -> *) a. Monad m => a -> m a
return (([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
-> IOEnv
(Env DsGblEnv DsLclEnv)
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr))
-> ([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
-> IOEnv
(Env DsGblEnv DsLclEnv)
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
forall a b. (a -> b) -> a -> b
$ (([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
-> ([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
-> ([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr))
-> NonEmpty
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
-> ([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
forall a. (a -> a -> a) -> NonEmpty a -> a
foldb ([LHsExpr (GhcPass 'Typechecked)], Type, CoreExpr)
-> ([LHsExpr (GhcPass 'Typechecked)], Type, CoreExpr)
-> ([LHsExpr (GhcPass 'Typechecked)], Type, CoreExpr)
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
-> ([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
-> ([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
merge_branches NonEmpty
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
bs
Maybe
(NonEmpty
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr))
Nothing -> ([], Type
void_ty,) (CoreExpr
-> ([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr))
-> (CoreExpr -> CoreExpr)
-> CoreExpr
-> ([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
forall b c a. (b -> c) -> (a -> b) -> a -> c
. DsCmdEnv -> Type -> Type -> CoreExpr -> CoreExpr
do_arr DsCmdEnv
ids Type
void_ty Type
res_ty (CoreExpr
-> ([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr))
-> DsM CoreExpr
-> IOEnv
(Env DsGblEnv DsLclEnv)
([GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))], Type,
CoreExpr)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$>
HsExpr (GhcPass 'Typechecked) -> DsM CoreExpr
dsExpr (XLam (GhcPass 'Typechecked)
-> HsLamVariant
-> MatchGroup
(GhcPass 'Typechecked) (LHsExpr (GhcPass 'Typechecked))
-> HsExpr (GhcPass 'Typechecked)
forall p.
XLam p -> HsLamVariant -> MatchGroup p (LHsExpr p) -> HsExpr p
HsLam XLam (GhcPass 'Typechecked)
EpAnnLam
forall a. NoAnn a => a
noAnn HsLamVariant
LamCase
(MG { mg_alts :: XRec
(GhcPass 'Typechecked)
[LMatch
(GhcPass 'Typechecked)
(GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))]
mg_alts = [GenLocated
(Anno
(Match
(GhcPass 'Typechecked)
(GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))))
(Match
(GhcPass 'Typechecked)
(GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))))]
-> GenLocated
(Anno
[GenLocated
(Anno
(Match
(GhcPass 'Typechecked)
(GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))))
(Match
(GhcPass 'Typechecked)
(GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))))])
[GenLocated
(Anno
(Match
(GhcPass 'Typechecked)
(GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))))
(Match
(GhcPass 'Typechecked)
(GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked))))]
forall e a. HasAnnotation e => a -> GenLocated e a
noLocA []
, mg_ext :: XMG
(GhcPass 'Typechecked)
(GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))
mg_ext = [Scaled Type] -> Type -> Origin -> MatchGroupTc
MatchGroupTc [Type -> Type -> Scaled Type
forall a. Type -> a -> Scaled a
Scaled Type
ManyTy Type
void_ty] Type
res_ty (GenReason -> DoPmc -> Origin
Generated GenReason
OtherExpansion DoPmc
SkipPmc)
}))
let (_, matches') = mapAccumL (replaceLeavesMatch res_ty) leaves' matches
return (MG { mg_alts = L l matches'
, mg_ext = MatchGroupTc arg_tys sum_ty origin
},
core_choices)
dsCmdDo :: DsCmdEnv
-> IdSet
-> Type
-> [CmdLStmt GhcTc]
-> [Id]
-> DsM (CoreExpr,
DIdSet)
dsCmdDo :: DsCmdEnv
-> VarSet
-> Type
-> [CmdLStmt (GhcPass 'Typechecked)]
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdDo DsCmdEnv
_ VarSet
_ Type
_ [] [Id]
_ = String -> DsM (CoreExpr, DIdSet)
forall a. HasCallStack => String -> a
panic String
"dsCmdDo"
dsCmdDo DsCmdEnv
ids VarSet
local_vars Type
res_ty [L SrcSpanAnnA
_ (LastStmt XLastStmt
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LocatedA (HsCmd (GhcPass 'Typechecked)))
_ LocatedA (HsCmd (GhcPass 'Typechecked))
body Maybe Bool
_ SyntaxExpr (GhcPass 'Typechecked)
_)] [Id]
env_ids = do
(core_body, env_ids') <- DsCmdEnv
-> VarSet
-> Type
-> Type
-> LHsCmd (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsLCmd DsCmdEnv
ids VarSet
local_vars Type
unitTy Type
res_ty LHsCmd (GhcPass 'Typechecked)
LocatedA (HsCmd (GhcPass 'Typechecked))
body [Id]
env_ids
let env_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids
env_var <- newSysLocalMDs env_ty
let core_map = Id -> CoreExpr -> CoreExpr
forall b. b -> Expr b -> Expr b
Lam Id
env_var (CoreExpr -> CoreExpr -> CoreExpr
mkCorePairExpr (Id -> CoreExpr
forall b. Id -> Expr b
Var Id
env_var) CoreExpr
mkCoreUnitExpr)
return (do_premap ids
env_ty
(mkCorePairTy env_ty unitTy)
res_ty
core_map
core_body,
env_ids')
dsCmdDo DsCmdEnv
ids VarSet
local_vars Type
res_ty (CmdLStmt (GhcPass 'Typechecked)
stmt:[CmdLStmt (GhcPass 'Typechecked)]
stmts) [Id]
env_ids = do
let bound_vars :: VarSet
bound_vars = [Id] -> VarSet
mkVarSet (CollectFlag (GhcPass 'Typechecked)
-> LStmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LocatedA (HsCmd (GhcPass 'Typechecked)))
-> [IdP (GhcPass 'Typechecked)]
forall (idL :: Pass) (idR :: Pass) body.
(IsPass idL, IsPass idR, CollectPass (GhcPass idL)) =>
CollectFlag (GhcPass idL)
-> LStmtLR (GhcPass idL) (GhcPass idR) body -> [IdP (GhcPass idL)]
collectLStmtBinders CollectFlag (GhcPass 'Typechecked)
CollWithDictBinders CmdLStmt (GhcPass 'Typechecked)
LStmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LocatedA (HsCmd (GhcPass 'Typechecked)))
stmt)
let local_vars' :: VarSet
local_vars' = VarSet
bound_vars VarSet -> VarSet -> VarSet
`unionVarSet` VarSet
local_vars
(core_stmts, _, env_ids') <- ([Id] -> DsM (CoreExpr, DIdSet)) -> DsM (CoreExpr, DIdSet, [Id])
trimInput (DsCmdEnv
-> VarSet
-> Type
-> [CmdLStmt (GhcPass 'Typechecked)]
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdDo DsCmdEnv
ids VarSet
local_vars' Type
res_ty [CmdLStmt (GhcPass 'Typechecked)]
stmts)
(core_stmt, fv_stmt) <- dsCmdLStmt ids local_vars env_ids' stmt env_ids
return (do_compose ids
(mkBigCoreVarTupTy env_ids)
(mkBigCoreVarTupTy env_ids')
res_ty
core_stmt
core_stmts,
fv_stmt)
dsCmdLStmt :: DsCmdEnv -> IdSet -> [Id] -> CmdLStmt GhcTc -> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdLStmt :: DsCmdEnv
-> VarSet
-> [Id]
-> CmdLStmt (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdLStmt DsCmdEnv
ids VarSet
local_vars [Id]
out_ids CmdLStmt (GhcPass 'Typechecked)
cmd [Id]
env_ids
= DsCmdEnv
-> VarSet
-> [Id]
-> CmdStmt (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdStmt DsCmdEnv
ids VarSet
local_vars [Id]
out_ids (GenLocated
SrcSpanAnnA
(StmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LocatedA (HsCmd (GhcPass 'Typechecked))))
-> StmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LocatedA (HsCmd (GhcPass 'Typechecked)))
forall l e. GenLocated l e -> e
unLoc CmdLStmt (GhcPass 'Typechecked)
GenLocated
SrcSpanAnnA
(StmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LocatedA (HsCmd (GhcPass 'Typechecked))))
cmd) [Id]
env_ids
dsCmdStmt
:: DsCmdEnv
-> IdSet
-> [Id]
-> CmdStmt GhcTc
-> [Id]
-> DsM (CoreExpr,
DIdSet)
dsCmdStmt :: DsCmdEnv
-> VarSet
-> [Id]
-> CmdStmt (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdStmt DsCmdEnv
ids VarSet
local_vars [Id]
out_ids (BodyStmt XBodyStmt
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LHsCmd (GhcPass 'Typechecked))
c_ty LHsCmd (GhcPass 'Typechecked)
cmd SyntaxExpr (GhcPass 'Typechecked)
_ SyntaxExpr (GhcPass 'Typechecked)
_) [Id]
env_ids = do
(core_cmd, fv_cmd, env_ids1) <- DsCmdEnv
-> VarSet
-> Type
-> Type
-> LHsCmd (GhcPass 'Typechecked)
-> DsM (CoreExpr, DIdSet, [Id])
dsfixCmd DsCmdEnv
ids VarSet
local_vars Type
unitTy XBodyStmt
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LHsCmd (GhcPass 'Typechecked))
Type
c_ty LHsCmd (GhcPass 'Typechecked)
cmd
core_mux <- matchEnv env_ids
(mkCorePairExpr
(mkCorePairExpr (mkBigCoreVarTup env_ids1) mkCoreUnitExpr)
(mkBigCoreVarTup out_ids))
let
in_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids
in_ty1 = Type -> Type -> Type
mkCorePairTy ([Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids1) Type
unitTy
out_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
out_ids
before_c_ty = Type -> Type -> Type
mkCorePairTy Type
in_ty1 Type
out_ty
after_c_ty = Type -> Type -> Type
mkCorePairTy XBodyStmt
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LHsCmd (GhcPass 'Typechecked))
Type
c_ty Type
out_ty
snd_fn <- mkSndExpr c_ty out_ty
return (do_premap ids in_ty before_c_ty out_ty core_mux $
do_compose ids before_c_ty after_c_ty out_ty
(do_first ids in_ty1 c_ty out_ty core_cmd) $
do_arr ids after_c_ty out_ty snd_fn,
extendDVarSetList fv_cmd out_ids)
dsCmdStmt DsCmdEnv
ids VarSet
local_vars [Id]
out_ids (BindStmt XBindStmt
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LHsCmd (GhcPass 'Typechecked))
_ LPat (GhcPass 'Typechecked)
pat LHsCmd (GhcPass 'Typechecked)
cmd) [Id]
env_ids = do
let pat_ty :: Type
pat_ty = LPat (GhcPass 'Typechecked) -> Type
hsLPatType LPat (GhcPass 'Typechecked)
pat
(core_cmd, fv_cmd, env_ids1) <- DsCmdEnv
-> VarSet
-> Type
-> Type
-> LHsCmd (GhcPass 'Typechecked)
-> DsM (CoreExpr, DIdSet, [Id])
dsfixCmd DsCmdEnv
ids VarSet
local_vars Type
unitTy Type
pat_ty LHsCmd (GhcPass 'Typechecked)
cmd
let pat_vars = [Id] -> VarSet
mkVarSet (CollectFlag (GhcPass 'Typechecked)
-> LPat (GhcPass 'Typechecked) -> [IdP (GhcPass 'Typechecked)]
forall p. CollectPass p => CollectFlag p -> LPat p -> [IdP p]
collectPatBinders CollectFlag (GhcPass 'Typechecked)
CollWithDictBinders LPat (GhcPass 'Typechecked)
pat)
let
env_ids2 = (Id -> Bool) -> [Id] -> [Id]
forall a. (a -> Bool) -> [a] -> [a]
filterOut (Id -> VarSet -> Bool
`elemVarSet` VarSet
pat_vars) [Id]
out_ids
env_ty2 = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids2
core_mux <- matchEnv env_ids
(mkCorePairExpr
(mkCorePairExpr (mkBigCoreVarTup env_ids1) mkCoreUnitExpr)
(mkBigCoreVarTup env_ids2))
env_id <- newSysLocalMDs env_ty2
let
after_c_ty = Type -> Type -> Type
mkCorePairTy Type
pat_ty Type
env_ty2
out_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
out_ids
body_expr <- coreCaseTuple env_id env_ids2 (mkBigCoreVarTup out_ids)
fail_expr <- mkFailExpr (StmtCtxt (HsDoStmt (DoExpr Nothing))) out_ty
pat_id <- selectSimpleMatchVarL ManyTy pat
match_code
<- matchSimply (Var pat_id) (StmtCtxt (HsDoStmt (DoExpr Nothing))) ManyTy pat body_expr fail_expr
pair_id <- newSysLocalMDs after_c_ty
let
proj_expr = Id -> CoreExpr -> CoreExpr
forall b. b -> Expr b -> Expr b
Lam Id
pair_id (Id -> Id -> Id -> CoreExpr -> CoreExpr
coreCasePair Id
pair_id Id
pat_id Id
env_id CoreExpr
match_code)
let
in_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids
in_ty1 = Type -> Type -> Type
mkCorePairTy ([Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids1) Type
unitTy
in_ty2 = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids2
before_c_ty = Type -> Type -> Type
mkCorePairTy Type
in_ty1 Type
in_ty2
return (do_premap ids in_ty before_c_ty out_ty core_mux $
do_compose ids before_c_ty after_c_ty out_ty
(do_first ids in_ty1 pat_ty in_ty2 core_cmd) $
do_arr ids after_c_ty out_ty proj_expr,
fv_cmd `unionDVarSet` (mkDVarSet out_ids
`uniqDSetMinusUniqSet` pat_vars))
dsCmdStmt DsCmdEnv
ids VarSet
local_vars [Id]
out_ids (LetStmt XLetStmt
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LHsCmd (GhcPass 'Typechecked))
_ HsLocalBinds (GhcPass 'Typechecked)
binds) [Id]
env_ids = do
core_binds <- HsLocalBinds (GhcPass 'Typechecked) -> CoreExpr -> DsM CoreExpr
dsLocalBinds HsLocalBinds (GhcPass 'Typechecked)
binds ([Id] -> CoreExpr
mkBigCoreVarTup [Id]
out_ids)
core_map <- matchEnv env_ids core_binds
return (do_arr ids
(mkBigCoreVarTupTy env_ids)
(mkBigCoreVarTupTy out_ids)
core_map,
exprFreeIdsDSet core_binds `uniqDSetIntersectUniqSet` local_vars)
dsCmdStmt DsCmdEnv
ids VarSet
local_vars [Id]
out_ids
(RecStmt { recS_stmts :: forall idL idR body.
StmtLR idL idR body -> XRec idR [LStmtLR idL idR body]
recS_stmts = L SrcSpanAnnLW
_ [GenLocated
SrcSpanAnnA
(StmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LocatedA (HsCmd (GhcPass 'Typechecked))))]
stmts
, recS_later_ids :: forall idL idR body. StmtLR idL idR body -> [IdP idR]
recS_later_ids = [IdP (GhcPass 'Typechecked)]
later_ids, recS_rec_ids :: forall idL idR body. StmtLR idL idR body -> [IdP idR]
recS_rec_ids = [IdP (GhcPass 'Typechecked)]
rec_ids
, recS_ext :: forall idL idR body. StmtLR idL idR body -> XRecStmt idL idR body
recS_ext = RecStmtTc { recS_later_rets :: RecStmtTc -> [HsExpr (GhcPass 'Typechecked)]
recS_later_rets = [HsExpr (GhcPass 'Typechecked)]
later_rets
, recS_rec_rets :: RecStmtTc -> [HsExpr (GhcPass 'Typechecked)]
recS_rec_rets = [HsExpr (GhcPass 'Typechecked)]
rec_rets } })
[Id]
env_ids = do
let
later_ids_set :: VarSet
later_ids_set = [Id] -> VarSet
mkVarSet [IdP (GhcPass 'Typechecked)]
[Id]
later_ids
env2_ids :: [Id]
env2_ids = (Id -> Bool) -> [Id] -> [Id]
forall a. (a -> Bool) -> [a] -> [a]
filterOut (Id -> VarSet -> Bool
`elemVarSet` VarSet
later_ids_set) [Id]
out_ids
env2_id_set :: DIdSet
env2_id_set = [Id] -> DIdSet
mkDVarSet [Id]
env2_ids
env2_ty :: Type
env2_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env2_ids
env2_id <- Type -> DsM Id
newSysLocalMDs Type
env2_ty
let
later_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [IdP (GhcPass 'Typechecked)]
[Id]
later_ids
post_pair_ty = Type -> Type -> Type
mkCorePairTy Type
later_ty Type
env2_ty
post_loop_body <- coreCaseTuple env2_id env2_ids (mkBigCoreVarTup out_ids)
post_loop_fn <- matchEnvStack later_ids env2_id post_loop_body
(core_loop, env1_id_set, env1_ids)
<- dsRecCmd ids local_vars stmts later_ids later_rets rec_ids rec_rets
let
env1_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env1_ids
pre_pair_ty = Type -> Type -> Type
mkCorePairTy Type
env1_ty Type
env2_ty
pre_loop_body = CoreExpr -> CoreExpr -> CoreExpr
mkCorePairExpr ([Id] -> CoreExpr
mkBigCoreVarTup [Id]
env1_ids)
([Id] -> CoreExpr
mkBigCoreVarTup [Id]
env2_ids)
pre_loop_fn <- matchEnv env_ids pre_loop_body
let
env_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids
out_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
out_ids
core_body = DsCmdEnv
-> Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr
do_premap DsCmdEnv
ids Type
env_ty Type
pre_pair_ty Type
out_ty
CoreExpr
pre_loop_fn
(DsCmdEnv
-> Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr
do_compose DsCmdEnv
ids Type
pre_pair_ty Type
post_pair_ty Type
out_ty
(DsCmdEnv -> Type -> Type -> Type -> CoreExpr -> CoreExpr
do_first DsCmdEnv
ids Type
env1_ty Type
later_ty Type
env2_ty
CoreExpr
core_loop)
(DsCmdEnv -> Type -> Type -> CoreExpr -> CoreExpr
do_arr DsCmdEnv
ids Type
post_pair_ty Type
out_ty
CoreExpr
post_loop_fn))
return (core_body, env1_id_set `unionDVarSet` env2_id_set)
dsCmdStmt DsCmdEnv
_ VarSet
_ [Id]
_ CmdStmt (GhcPass 'Typechecked)
_ [Id]
s = String -> SDoc -> DsM (CoreExpr, DIdSet)
forall a. HasCallStack => String -> SDoc -> a
pprPanic String
"dsCmdStmt" ([Id] -> SDoc
forall a. Outputable a => a -> SDoc
ppr [Id]
s)
dsRecCmd
:: DsCmdEnv
-> IdSet
-> [CmdLStmt GhcTc]
-> [Id]
-> [HsExpr GhcTc]
-> [Id]
-> [HsExpr GhcTc]
-> DsM (CoreExpr,
DIdSet,
[Id])
dsRecCmd :: DsCmdEnv
-> VarSet
-> [CmdLStmt (GhcPass 'Typechecked)]
-> [Id]
-> [HsExpr (GhcPass 'Typechecked)]
-> [Id]
-> [HsExpr (GhcPass 'Typechecked)]
-> DsM (CoreExpr, DIdSet, [Id])
dsRecCmd DsCmdEnv
ids VarSet
local_vars [CmdLStmt (GhcPass 'Typechecked)]
stmts [Id]
later_ids [HsExpr (GhcPass 'Typechecked)]
later_rets [Id]
rec_ids [HsExpr (GhcPass 'Typechecked)]
rec_rets = do
let
later_id_set :: VarSet
later_id_set = [Id] -> VarSet
mkVarSet [Id]
later_ids
rec_id_set :: VarSet
rec_id_set = [Id] -> VarSet
mkVarSet [Id]
rec_ids
local_vars' :: VarSet
local_vars' = VarSet
rec_id_set VarSet -> VarSet -> VarSet
`unionVarSet` VarSet
later_id_set VarSet -> VarSet -> VarSet
`unionVarSet` VarSet
local_vars
core_later_rets <- (HsExpr (GhcPass 'Typechecked) -> DsM CoreExpr)
-> [HsExpr (GhcPass 'Typechecked)]
-> IOEnv (Env DsGblEnv DsLclEnv) [CoreExpr]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
forall (m :: * -> *) a b. Monad m => (a -> m b) -> [a] -> m [b]
mapM HsExpr (GhcPass 'Typechecked) -> DsM CoreExpr
dsExpr [HsExpr (GhcPass 'Typechecked)]
later_rets
core_rec_rets <- mapM dsExpr rec_rets
let
out_ids = [CoreExpr] -> [Id]
exprsFreeIdsList ([CoreExpr]
core_later_rets [CoreExpr] -> [CoreExpr] -> [CoreExpr]
forall a. [a] -> [a] -> [a]
++ [CoreExpr]
core_rec_rets)
out_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
out_ids
later_tuple = [CoreExpr] -> CoreExpr
mkBigCoreTup [CoreExpr]
core_later_rets
later_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
later_ids
rec_tuple = [CoreExpr] -> CoreExpr
mkBigCoreTup [CoreExpr]
core_rec_rets
rec_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
rec_ids
out_pair = CoreExpr -> CoreExpr -> CoreExpr
mkCorePairExpr CoreExpr
later_tuple CoreExpr
rec_tuple
out_pair_ty = Type -> Type -> Type
mkCorePairTy Type
later_ty Type
rec_ty
mk_pair_fn <- matchEnv out_ids out_pair
(core_stmts, fv_stmts, env_ids) <- dsfixCmdStmts ids local_vars' out_ids stmts
rec_id <- newSysLocalMDs rec_ty
let
env1_id_set = DIdSet
fv_stmts DIdSet -> VarSet -> DIdSet
forall a. UniqDSet a -> UniqSet a -> UniqDSet a
`uniqDSetMinusUniqSet` VarSet
rec_id_set
env1_ids = DIdSet -> [Id]
dVarSetElems DIdSet
env1_id_set
env1_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env1_ids
in_pair_ty = Type -> Type -> Type
mkCorePairTy Type
env1_ty Type
rec_ty
core_body = [CoreExpr] -> CoreExpr
mkBigCoreTup ((Id -> CoreExpr) -> [Id] -> [CoreExpr]
forall a b. (a -> b) -> [a] -> [b]
map Id -> CoreExpr
selectVar [Id]
env_ids)
where
selectVar :: Id -> CoreExpr
selectVar Id
v
| Id
v Id -> VarSet -> Bool
`elemVarSet` VarSet
rec_id_set
= [Id] -> Id -> Id -> CoreExpr -> CoreExpr
mkBigTupleSelector [Id]
rec_ids Id
v Id
rec_id (Id -> CoreExpr
forall b. Id -> Expr b
Var Id
rec_id)
| Bool
otherwise = Id -> CoreExpr
forall b. Id -> Expr b
Var Id
v
squash_pair_fn <- matchEnvStack env1_ids rec_id core_body
let
env_ty = [Id] -> Type
HasDebugCallStack => [Id] -> Type
mkBigCoreVarTupTy [Id]
env_ids
core_loop = DsCmdEnv -> Type -> Type -> Type -> CoreExpr -> CoreExpr
do_loop DsCmdEnv
ids Type
env1_ty Type
later_ty Type
rec_ty
(DsCmdEnv
-> Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr
do_premap DsCmdEnv
ids Type
in_pair_ty Type
env_ty Type
out_pair_ty
CoreExpr
squash_pair_fn
(DsCmdEnv
-> Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr
do_compose DsCmdEnv
ids Type
env_ty Type
out_ty Type
out_pair_ty
CoreExpr
core_stmts
(DsCmdEnv -> Type -> Type -> CoreExpr -> CoreExpr
do_arr DsCmdEnv
ids Type
out_ty Type
out_pair_ty CoreExpr
mk_pair_fn)))
return (core_loop, env1_id_set, env1_ids)
dsfixCmdStmts
:: DsCmdEnv
-> IdSet
-> [Id]
-> [CmdLStmt GhcTc]
-> DsM (CoreExpr,
DIdSet,
[Id])
dsfixCmdStmts :: DsCmdEnv
-> VarSet
-> [Id]
-> [CmdLStmt (GhcPass 'Typechecked)]
-> DsM (CoreExpr, DIdSet, [Id])
dsfixCmdStmts DsCmdEnv
ids VarSet
local_vars [Id]
out_ids [CmdLStmt (GhcPass 'Typechecked)]
stmts
= ([Id] -> DsM (CoreExpr, DIdSet)) -> DsM (CoreExpr, DIdSet, [Id])
trimInput (DsCmdEnv
-> VarSet
-> [Id]
-> [CmdLStmt (GhcPass 'Typechecked)]
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdStmts DsCmdEnv
ids VarSet
local_vars [Id]
out_ids [CmdLStmt (GhcPass 'Typechecked)]
stmts)
dsCmdStmts
:: DsCmdEnv
-> IdSet
-> [Id]
-> [CmdLStmt GhcTc]
-> [Id]
-> DsM (CoreExpr,
DIdSet)
dsCmdStmts :: DsCmdEnv
-> VarSet
-> [Id]
-> [CmdLStmt (GhcPass 'Typechecked)]
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdStmts DsCmdEnv
ids VarSet
local_vars [Id]
out_ids [CmdLStmt (GhcPass 'Typechecked)
stmt] [Id]
env_ids
= DsCmdEnv
-> VarSet
-> [Id]
-> CmdLStmt (GhcPass 'Typechecked)
-> [Id]
-> DsM (CoreExpr, DIdSet)
dsCmdLStmt DsCmdEnv
ids VarSet
local_vars [Id]
out_ids CmdLStmt (GhcPass 'Typechecked)
stmt [Id]
env_ids
dsCmdStmts DsCmdEnv
ids VarSet
local_vars [Id]
out_ids (CmdLStmt (GhcPass 'Typechecked)
stmt:[CmdLStmt (GhcPass 'Typechecked)]
stmts) [Id]
env_ids = do
let bound_vars :: VarSet
bound_vars = [Id] -> VarSet
mkVarSet (CollectFlag (GhcPass 'Typechecked)
-> LStmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LocatedA (HsCmd (GhcPass 'Typechecked)))
-> [IdP (GhcPass 'Typechecked)]
forall (idL :: Pass) (idR :: Pass) body.
(IsPass idL, IsPass idR, CollectPass (GhcPass idL)) =>
CollectFlag (GhcPass idL)
-> LStmtLR (GhcPass idL) (GhcPass idR) body -> [IdP (GhcPass idL)]
collectLStmtBinders CollectFlag (GhcPass 'Typechecked)
CollWithDictBinders CmdLStmt (GhcPass 'Typechecked)
LStmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(LocatedA (HsCmd (GhcPass 'Typechecked)))
stmt)
let local_vars' :: VarSet
local_vars' = VarSet
bound_vars VarSet -> VarSet -> VarSet
`unionVarSet` VarSet
local_vars
(core_stmts, _fv_stmts, env_ids') <- DsCmdEnv
-> VarSet
-> [Id]
-> [CmdLStmt (GhcPass 'Typechecked)]
-> DsM (CoreExpr, DIdSet, [Id])
dsfixCmdStmts DsCmdEnv
ids VarSet
local_vars' [Id]
out_ids [CmdLStmt (GhcPass 'Typechecked)]
stmts
(core_stmt, fv_stmt) <- dsCmdLStmt ids local_vars env_ids' stmt env_ids
return (do_compose ids
(mkBigCoreVarTupTy env_ids)
(mkBigCoreVarTupTy env_ids')
(mkBigCoreVarTupTy out_ids)
core_stmt
core_stmts,
fv_stmt)
dsCmdStmts DsCmdEnv
_ VarSet
_ [Id]
_ [] [Id]
_ = String -> DsM (CoreExpr, DIdSet)
forall a. HasCallStack => String -> a
panic String
"dsCmdStmts []"
matchSimplys :: [CoreExpr]
-> HsMatchContextRn
-> [LPat GhcTc]
-> CoreExpr
-> CoreExpr
-> DsM CoreExpr
matchSimplys :: [CoreExpr]
-> HsMatchContextRn
-> [LPat (GhcPass 'Typechecked)]
-> CoreExpr
-> CoreExpr
-> DsM CoreExpr
matchSimplys [] HsMatchContextRn
_ctxt [] CoreExpr
result_expr CoreExpr
_fail_expr = CoreExpr -> DsM CoreExpr
forall a. a -> IOEnv (Env DsGblEnv DsLclEnv) a
forall (m :: * -> *) a. Monad m => a -> m a
return CoreExpr
result_expr
matchSimplys (CoreExpr
exp:[CoreExpr]
exps) HsMatchContextRn
ctxt (LPat (GhcPass 'Typechecked)
pat:[LPat (GhcPass 'Typechecked)]
pats) CoreExpr
result_expr CoreExpr
fail_expr = do
match_code <- [CoreExpr]
-> HsMatchContextRn
-> [LPat (GhcPass 'Typechecked)]
-> CoreExpr
-> CoreExpr
-> DsM CoreExpr
matchSimplys [CoreExpr]
exps HsMatchContextRn
ctxt [LPat (GhcPass 'Typechecked)]
pats CoreExpr
result_expr CoreExpr
fail_expr
matchSimply exp ctxt ManyTy pat match_code fail_expr
matchSimplys [CoreExpr]
_ HsMatchContextRn
_ [LPat (GhcPass 'Typechecked)]
_ CoreExpr
_ CoreExpr
_ = String -> DsM CoreExpr
forall a. HasCallStack => String -> a
panic String
"matchSimplys"
leavesMatch :: LMatch GhcTc (LocatedA (body GhcTc))
-> [(LocatedA (body GhcTc), IdSet)]
leavesMatch :: forall (body :: * -> *).
LMatch
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
-> [(LocatedA (body (GhcPass 'Typechecked)), VarSet)]
leavesMatch (L Anno
(Match
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))
_ (Match { m_pats :: forall p body. Match p body -> XRec p [LPat p]
m_pats = L EpaLocation
_ [GenLocated SrcSpanAnnA (Pat (GhcPass 'Typechecked))]
pats
, m_grhss :: forall p body. Match p body -> GRHSs p body
m_grhss = GRHSs XCGRHSs
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
_ [LGRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))]
grhss HsLocalBinds (GhcPass 'Typechecked)
binds }))
= let
defined_vars :: VarSet
defined_vars = [Id] -> VarSet
mkVarSet (CollectFlag (GhcPass 'Typechecked)
-> [LPat (GhcPass 'Typechecked)] -> [IdP (GhcPass 'Typechecked)]
forall p. CollectPass p => CollectFlag p -> [LPat p] -> [IdP p]
collectPatsBinders CollectFlag (GhcPass 'Typechecked)
CollWithDictBinders [LPat (GhcPass 'Typechecked)]
[GenLocated SrcSpanAnnA (Pat (GhcPass 'Typechecked))]
pats)
VarSet -> VarSet -> VarSet
`unionVarSet`
[Id] -> VarSet
mkVarSet (CollectFlag (GhcPass 'Typechecked)
-> HsLocalBinds (GhcPass 'Typechecked)
-> [IdP (GhcPass 'Typechecked)]
forall (idL :: Pass) (idR :: Pass).
CollectPass (GhcPass idL) =>
CollectFlag (GhcPass idL)
-> HsLocalBindsLR (GhcPass idL) (GhcPass idR)
-> [IdP (GhcPass idL)]
collectLocalBinders CollectFlag (GhcPass 'Typechecked)
CollWithDictBinders HsLocalBinds (GhcPass 'Typechecked)
binds)
in
[(LocatedA (body (GhcPass 'Typechecked))
body,
[Id] -> VarSet
mkVarSet (CollectFlag (GhcPass 'Typechecked)
-> [LStmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))]
-> [IdP (GhcPass 'Typechecked)]
forall (idL :: Pass) (idR :: Pass) body.
(IsPass idL, IsPass idR, CollectPass (GhcPass idL)) =>
CollectFlag (GhcPass idL)
-> [LStmtLR (GhcPass idL) (GhcPass idR) body]
-> [IdP (GhcPass idL)]
collectLStmtsBinders CollectFlag (GhcPass 'Typechecked)
CollWithDictBinders [GuardLStmt (GhcPass 'Typechecked)]
[LStmtLR
(GhcPass 'Typechecked)
(GhcPass 'Typechecked)
(GenLocated SrcSpanAnnA (HsExpr (GhcPass 'Typechecked)))]
stmts)
VarSet -> VarSet -> VarSet
`unionVarSet` VarSet
defined_vars)
| L Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))
_ (GRHS XCGRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
_ [GuardLStmt (GhcPass 'Typechecked)]
stmts LocatedA (body (GhcPass 'Typechecked))
body) <- [LGRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))]
[GenLocated
(Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))]
grhss]
replaceLeavesMatch
:: ( Anno (Match GhcTc (LocatedA (body' GhcTc))) ~ Anno (Match GhcTc (LocatedA (body GhcTc)))
, Anno (GRHS GhcTc (LocatedA (body' GhcTc))) ~ Anno (GRHS GhcTc (LocatedA (body GhcTc))))
=> Type
-> [LocatedA (body' GhcTc)]
-> LMatch GhcTc (LocatedA (body GhcTc))
-> ([LocatedA (body' GhcTc)],
LMatch GhcTc (LocatedA (body' GhcTc)))
replaceLeavesMatch :: forall (body' :: * -> *) (body :: * -> *).
(Anno
(Match
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
~ Anno
(Match
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))),
Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
~ Anno
(GRHS
(GhcPass 'Typechecked)
(LocatedA (body (GhcPass 'Typechecked))))) =>
Type
-> [LocatedA (body' (GhcPass 'Typechecked))]
-> LMatch
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
-> ([LocatedA (body' (GhcPass 'Typechecked))],
LMatch
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
replaceLeavesMatch Type
_res_ty [LocatedA (body' (GhcPass 'Typechecked))]
leaves
(L Anno
(Match
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))
loc
match :: Match
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
match@(Match { m_grhss :: forall p body. Match p body -> GRHSs p body
m_grhss = GRHSs XCGRHSs
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
x [LGRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))]
grhss HsLocalBinds (GhcPass 'Typechecked)
binds }))
= let
([LocatedA (body' (GhcPass 'Typechecked))]
leaves', [GenLocated
(Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(GRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))]
grhss') = ([LocatedA (body' (GhcPass 'Typechecked))]
-> GenLocated
(Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))
-> ([LocatedA (body' (GhcPass 'Typechecked))],
GenLocated
(Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(GRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))))
-> [LocatedA (body' (GhcPass 'Typechecked))]
-> [GenLocated
(Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))]
-> ([LocatedA (body' (GhcPass 'Typechecked))],
[GenLocated
(Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(GRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))])
forall (t :: * -> *) s a b.
Traversable t =>
(s -> a -> (s, b)) -> s -> t a -> (s, t b)
mapAccumL [LocatedA (body' (GhcPass 'Typechecked))]
-> LGRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
-> ([LocatedA (body' (GhcPass 'Typechecked))],
LGRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
[LocatedA (body' (GhcPass 'Typechecked))]
-> GenLocated
(Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))
-> ([LocatedA (body' (GhcPass 'Typechecked))],
GenLocated
(Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(GRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked)))))
forall (body' :: * -> *) (body :: * -> *).
(Anno
(Match
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
~ Anno
(Match
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))),
Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
~ Anno
(GRHS
(GhcPass 'Typechecked)
(LocatedA (body (GhcPass 'Typechecked))))) =>
[LocatedA (body' (GhcPass 'Typechecked))]
-> LGRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
-> ([LocatedA (body' (GhcPass 'Typechecked))],
LGRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
replaceLeavesGRHS [LocatedA (body' (GhcPass 'Typechecked))]
leaves [LGRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))]
[GenLocated
(Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))]
grhss
in
([LocatedA (body' (GhcPass 'Typechecked))]
leaves', Anno
(Match
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))
-> Match
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked)))
-> GenLocated
(Anno
(Match
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(Match
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
forall l e. l -> e -> GenLocated l e
L Anno
(Match
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))
loc (Match
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
match { m_ext = noExtField, m_grhss = GRHSs x grhss' binds }))
replaceLeavesGRHS
:: ( Anno (Match GhcTc (LocatedA (body' GhcTc))) ~ Anno (Match GhcTc (LocatedA (body GhcTc)))
, Anno (GRHS GhcTc (LocatedA (body' GhcTc))) ~ Anno (GRHS GhcTc (LocatedA (body GhcTc))))
=> [LocatedA (body' GhcTc)]
-> LGRHS GhcTc (LocatedA (body GhcTc))
-> ([LocatedA (body' GhcTc)],
LGRHS GhcTc (LocatedA (body' GhcTc)))
replaceLeavesGRHS :: forall (body' :: * -> *) (body :: * -> *).
(Anno
(Match
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
~ Anno
(Match
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))),
Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
~ Anno
(GRHS
(GhcPass 'Typechecked)
(LocatedA (body (GhcPass 'Typechecked))))) =>
[LocatedA (body' (GhcPass 'Typechecked))]
-> LGRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
-> ([LocatedA (body' (GhcPass 'Typechecked))],
LGRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
replaceLeavesGRHS (LocatedA (body' (GhcPass 'Typechecked))
leaf:[LocatedA (body' (GhcPass 'Typechecked))]
leaves) (L Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))
loc (GRHS XCGRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
x [GuardLStmt (GhcPass 'Typechecked)]
stmts LocatedA (body (GhcPass 'Typechecked))
_))
= ([LocatedA (body' (GhcPass 'Typechecked))]
leaves, Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))
-> GRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked)))
-> GenLocated
(Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(GRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked))))
forall l e. l -> e -> GenLocated l e
L Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked))))
loc (XCGRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked)))
-> [GuardLStmt (GhcPass 'Typechecked)]
-> LocatedA (body' (GhcPass 'Typechecked))
-> GRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked)))
forall p body.
XCGRHS p body -> [GuardLStmt p] -> body -> GRHS p body
GRHS XCGRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked)))
XCGRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
x [GuardLStmt (GhcPass 'Typechecked)]
stmts LocatedA (body' (GhcPass 'Typechecked))
leaf))
replaceLeavesGRHS [] LGRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))
_ = String
-> ([LocatedA (body' (GhcPass 'Typechecked))],
GenLocated
(Anno
(GRHS
(GhcPass 'Typechecked) (LocatedA (body (GhcPass 'Typechecked)))))
(GRHS
(GhcPass 'Typechecked) (LocatedA (body' (GhcPass 'Typechecked)))))
forall a. HasCallStack => String -> a
panic String
"replaceLeavesGRHS []"
foldb :: (a -> a -> a) -> NonEmpty a -> a
foldb :: forall a. (a -> a -> a) -> NonEmpty a -> a
foldb a -> a -> a
_ (a
x:|[]) = a
x
foldb a -> a -> a
f NonEmpty a
xs = (a -> a -> a) -> NonEmpty a -> a
forall a. (a -> a -> a) -> NonEmpty a -> a
foldb a -> a -> a
f (NonEmpty a -> NonEmpty a
fold_pairs NonEmpty a
xs)
where
fold_pairs :: NonEmpty a -> NonEmpty a
fold_pairs (a
x1:|a
x2:[a]
xs) = a -> a -> a
f a
x1 a
x2 a -> [a] -> NonEmpty a
forall a. a -> [a] -> NonEmpty a
:| (NonEmpty a -> NonEmpty a) -> [a] -> [a]
forall a. (NonEmpty a -> NonEmpty a) -> [a] -> [a]
keep_empty NonEmpty a -> NonEmpty a
fold_pairs [a]
xs
fold_pairs NonEmpty a
xs = NonEmpty a
xs
keep_empty :: (NonEmpty a -> NonEmpty a) -> [a] -> [a]
keep_empty :: forall a. (NonEmpty a -> NonEmpty a) -> [a] -> [a]
keep_empty NonEmpty a -> NonEmpty a
f = [a] -> (NonEmpty a -> [a]) -> Maybe (NonEmpty a) -> [a]
forall b a. b -> (a -> b) -> Maybe a -> b
maybe [] (NonEmpty a -> [a]
forall a. NonEmpty a -> [a]
forall (t :: * -> *) a. Foldable t => t a -> [a]
toList (NonEmpty a -> [a])
-> (NonEmpty a -> NonEmpty a) -> NonEmpty a -> [a]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. NonEmpty a -> NonEmpty a
f) (Maybe (NonEmpty a) -> [a])
-> ([a] -> Maybe (NonEmpty a)) -> [a] -> [a]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. [a] -> Maybe (NonEmpty a)
forall a. [a] -> Maybe (NonEmpty a)
nonEmpty