{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE LambdaCase #-}
module GHC.StgToJS.Monad
( runG
, emitGlobal
, addDependency
, emitToplevel
, emitStatic
, emitClosureInfo
, emitForeign
, assertRtsStat
, getSettings
, globalOccs
, setGlobalIdCache
, getGlobalIdCache
, GlobalOcc(..)
, modifyGroup
, resetGroup
)
where
import GHC.Prelude
import GHC.JS.Syntax
import GHC.JS.Transform
import GHC.StgToJS.Types
import GHC.Unit.Module
import GHC.Stg.Syntax
import GHC.Types.SrcLoc
import GHC.Types.Id
import GHC.Types.Unique.FM
import GHC.Types.ForeignCall
import qualified Control.Monad.Trans.State.Strict as State
import GHC.Data.FastString
import GHC.Data.FastMutInt
import qualified Data.Map as M
import qualified Data.Set as S
import qualified Data.List as L
runG :: StgToJSConfig -> Module -> UniqFM Id CgStgExpr -> G a -> IO a
runG :: forall a.
StgToJSConfig -> Module -> UniqFM Id CgStgExpr -> G a -> IO a
runG StgToJSConfig
config Module
m UniqFM Id CgStgExpr
unfloat G a
action = forall (m :: * -> *) s a. Monad m => StateT s m a -> s -> m a
State.evalStateT G a
action forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< StgToJSConfig -> Module -> UniqFM Id CgStgExpr -> IO GenState
initState StgToJSConfig
config Module
m UniqFM Id CgStgExpr
unfloat
initState :: StgToJSConfig -> Module -> UniqFM Id CgStgExpr -> IO GenState
initState :: StgToJSConfig -> Module -> UniqFM Id CgStgExpr -> IO GenState
initState StgToJSConfig
config Module
m UniqFM Id CgStgExpr
unfloat = do
FastMutInt
id_gen <- Int -> IO FastMutInt
newFastMutInt Int
1
forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ GenState
{ gsSettings :: StgToJSConfig
gsSettings = StgToJSConfig
config
, gsModule :: Module
gsModule = Module
m
, gsId :: FastMutInt
gsId = FastMutInt
id_gen
, gsIdents :: IdCache
gsIdents = IdCache
emptyIdCache
, gsUnfloated :: UniqFM Id CgStgExpr
gsUnfloated = UniqFM Id CgStgExpr
unfloat
, gsGroup :: GenGroupState
gsGroup = GenGroupState
defaultGenGroupState
, gsGlobal :: [JStat]
gsGlobal = []
}
modifyGroup :: (GenGroupState -> GenGroupState) -> G ()
modifyGroup :: (GenGroupState -> GenGroupState) -> G ()
modifyGroup GenGroupState -> GenGroupState
f = forall (m :: * -> *) s. Monad m => (s -> s) -> StateT s m ()
State.modify GenState -> GenState
mod_state
where
mod_state :: GenState -> GenState
mod_state GenState
s = GenState
s { gsGroup :: GenGroupState
gsGroup = GenGroupState -> GenGroupState
f (GenState -> GenGroupState
gsGroup GenState
s) }
emitGlobal :: JStat -> G ()
emitGlobal :: JStat -> G ()
emitGlobal JStat
stat = forall (m :: * -> *) s. Monad m => (s -> s) -> StateT s m ()
State.modify (\GenState
s -> GenState
s { gsGlobal :: [JStat]
gsGlobal = JStat
stat forall a. a -> [a] -> [a]
: GenState -> [JStat]
gsGlobal GenState
s })
addDependency :: OtherSymb -> G ()
addDependency :: OtherSymb -> G ()
addDependency OtherSymb
symbol = (GenGroupState -> GenGroupState) -> G ()
modifyGroup GenGroupState -> GenGroupState
mod_group
where
mod_group :: GenGroupState -> GenGroupState
mod_group GenGroupState
g = GenGroupState
g { ggsExtraDeps :: Set OtherSymb
ggsExtraDeps = forall a. Ord a => a -> Set a -> Set a
S.insert OtherSymb
symbol (GenGroupState -> Set OtherSymb
ggsExtraDeps GenGroupState
g) }
emitToplevel :: JStat -> G ()
emitToplevel :: JStat -> G ()
emitToplevel JStat
s = (GenGroupState -> GenGroupState) -> G ()
modifyGroup GenGroupState -> GenGroupState
mod_group
where
mod_group :: GenGroupState -> GenGroupState
mod_group GenGroupState
g = GenGroupState
g { ggsToplevelStats :: [JStat]
ggsToplevelStats = JStat
s forall a. a -> [a] -> [a]
: GenGroupState -> [JStat]
ggsToplevelStats GenGroupState
g}
emitStatic :: FastString -> StaticVal -> Maybe Ident -> G ()
emitStatic :: FastString -> StaticVal -> Maybe Ident -> G ()
emitStatic FastString
ident StaticVal
val Maybe Ident
cc = (GenGroupState -> GenGroupState) -> G ()
modifyGroup GenGroupState -> GenGroupState
mod_group
where
mod_group :: GenGroupState -> GenGroupState
mod_group GenGroupState
g = GenGroupState
g { ggsStatic :: [StaticInfo]
ggsStatic = [StaticInfo] -> [StaticInfo]
mod_static (GenGroupState -> [StaticInfo]
ggsStatic GenGroupState
g) }
mod_static :: [StaticInfo] -> [StaticInfo]
mod_static [StaticInfo]
s = FastString -> StaticVal -> Maybe Ident -> StaticInfo
StaticInfo FastString
ident StaticVal
val Maybe Ident
cc forall a. a -> [a] -> [a]
: [StaticInfo]
s
emitClosureInfo :: ClosureInfo -> G ()
emitClosureInfo :: ClosureInfo -> G ()
emitClosureInfo ClosureInfo
ci = (GenGroupState -> GenGroupState) -> G ()
modifyGroup GenGroupState -> GenGroupState
mod_group
where
mod_group :: GenGroupState -> GenGroupState
mod_group GenGroupState
g = GenGroupState
g { ggsClosureInfo :: [ClosureInfo]
ggsClosureInfo = ClosureInfo
ci forall a. a -> [a] -> [a]
: GenGroupState -> [ClosureInfo]
ggsClosureInfo GenGroupState
g}
emitForeign :: Maybe RealSrcSpan
-> FastString
-> Safety
-> CCallConv
-> [FastString]
-> FastString
-> G ()
emitForeign :: Maybe RealSrcSpan
-> FastString
-> Safety
-> CCallConv
-> [FastString]
-> FastString
-> G ()
emitForeign Maybe RealSrcSpan
mbSpan FastString
pat Safety
safety CCallConv
cconv [FastString]
arg_tys FastString
res_ty = (GenGroupState -> GenGroupState) -> G ()
modifyGroup GenGroupState -> GenGroupState
mod_group
where
mod_group :: GenGroupState -> GenGroupState
mod_group GenGroupState
g = GenGroupState
g { ggsForeignRefs :: [ForeignJSRef]
ggsForeignRefs = ForeignJSRef
new_ref forall a. a -> [a] -> [a]
: GenGroupState -> [ForeignJSRef]
ggsForeignRefs GenGroupState
g }
new_ref :: ForeignJSRef
new_ref = FastString
-> FastString
-> Safety
-> CCallConv
-> [FastString]
-> FastString
-> ForeignJSRef
ForeignJSRef FastString
spanTxt FastString
pat Safety
safety CCallConv
cconv [FastString]
arg_tys FastString
res_ty
spanTxt :: FastString
spanTxt = case Maybe RealSrcSpan
mbSpan of
Just RealSrcSpan
sp -> [Char] -> FastString
mkFastString forall a b. (a -> b) -> a -> b
$
FastString -> [Char]
unpackFS (RealSrcSpan -> FastString
srcSpanFile RealSrcSpan
sp) forall a. [a] -> [a] -> [a]
++
[Char]
" " forall a. [a] -> [a] -> [a]
++
forall a. Show a => a -> [Char]
show (RealSrcSpan -> Int
srcSpanStartLine RealSrcSpan
sp, RealSrcSpan -> Int
srcSpanStartCol RealSrcSpan
sp) forall a. [a] -> [a] -> [a]
++
[Char]
"-" forall a. [a] -> [a] -> [a]
++
forall a. Show a => a -> [Char]
show (RealSrcSpan -> Int
srcSpanEndLine RealSrcSpan
sp, RealSrcSpan -> Int
srcSpanEndCol RealSrcSpan
sp)
Maybe RealSrcSpan
Nothing -> FastString
"<unknown>"
resetGroup :: G ()
resetGroup :: G ()
resetGroup = forall (m :: * -> *) s. Monad m => (s -> s) -> StateT s m ()
State.modify (\GenState
s -> GenState
s { gsGroup :: GenGroupState
gsGroup = GenGroupState
defaultGenGroupState })
defaultGenGroupState :: GenGroupState
defaultGenGroupState :: GenGroupState
defaultGenGroupState = [JStat]
-> [ClosureInfo]
-> [StaticInfo]
-> [StackSlot]
-> Int
-> Set OtherSymb
-> GlobalIdCache
-> [ForeignJSRef]
-> GenGroupState
GenGroupState [] [] [] [] Int
0 forall a. Set a
S.empty GlobalIdCache
emptyGlobalIdCache []
emptyGlobalIdCache :: GlobalIdCache
emptyGlobalIdCache :: GlobalIdCache
emptyGlobalIdCache = UniqFM Ident (IdKey, Id) -> GlobalIdCache
GlobalIdCache forall key elt. UniqFM key elt
emptyUFM
emptyIdCache :: IdCache
emptyIdCache :: IdCache
emptyIdCache = Map IdKey Ident -> IdCache
IdCache forall k a. Map k a
M.empty
assertRtsStat :: G JStat -> G JStat
assertRtsStat :: G JStat -> G JStat
assertRtsStat G JStat
stat = do
StgToJSConfig
s <- forall (m :: * -> *) s a. Monad m => (s -> a) -> StateT s m a
State.gets GenState -> StgToJSConfig
gsSettings
if StgToJSConfig -> Bool
csAssertRts StgToJSConfig
s then G JStat
stat else forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a. Monoid a => a
mempty
getSettings :: G StgToJSConfig
getSettings :: G StgToJSConfig
getSettings = forall (m :: * -> *) s a. Monad m => (s -> a) -> StateT s m a
State.gets GenState -> StgToJSConfig
gsSettings
getGlobalIdCache :: G GlobalIdCache
getGlobalIdCache :: G GlobalIdCache
getGlobalIdCache = forall (m :: * -> *) s a. Monad m => (s -> a) -> StateT s m a
State.gets (GenGroupState -> GlobalIdCache
ggsGlobalIdCache forall b c a. (b -> c) -> (a -> b) -> a -> c
. GenState -> GenGroupState
gsGroup)
setGlobalIdCache :: GlobalIdCache -> G ()
setGlobalIdCache :: GlobalIdCache -> G ()
setGlobalIdCache GlobalIdCache
v = forall (m :: * -> *) s. Monad m => (s -> s) -> StateT s m ()
State.modify (\GenState
s -> GenState
s { gsGroup :: GenGroupState
gsGroup = (GenState -> GenGroupState
gsGroup GenState
s) { ggsGlobalIdCache :: GlobalIdCache
ggsGlobalIdCache = GlobalIdCache
v}})
data GlobalOcc = GlobalOcc
{ GlobalOcc -> Ident
global_ident :: !Ident
, GlobalOcc -> Id
global_id :: !Id
, GlobalOcc -> Word
global_count :: !Word
}
globalOccs :: JStat -> G [GlobalOcc]
globalOccs :: JStat -> G [GlobalOcc]
globalOccs JStat
jst = do
GlobalIdCache UniqFM Ident (IdKey, Id)
gidc <- G GlobalIdCache
getGlobalIdCache
let
cmp_cnt :: GlobalOcc -> GlobalOcc -> Ordering
cmp_cnt GlobalOcc
g1 GlobalOcc
g2 = forall a. Ord a => a -> a -> Ordering
compare (GlobalOcc -> Word
global_count GlobalOcc
g1) (GlobalOcc -> Word
global_count GlobalOcc
g2)
inc :: GlobalOcc -> GlobalOcc -> GlobalOcc
inc GlobalOcc
g1 GlobalOcc
g2 = GlobalOcc
g1 { global_count :: Word
global_count = GlobalOcc -> Word
global_count GlobalOcc
g1 forall a. Num a => a -> a -> a
+ GlobalOcc -> Word
global_count GlobalOcc
g2 }
go :: UniqFM Ident GlobalOcc -> [Ident] -> [GlobalOcc]
go UniqFM Ident GlobalOcc
gids = \case
[] ->
forall a. (a -> a -> Ordering) -> [a] -> [a]
L.sortBy GlobalOcc -> GlobalOcc -> Ordering
cmp_cnt forall a b. (a -> b) -> a -> b
$ forall key elt. UniqFM key elt -> [elt]
nonDetEltsUFM UniqFM Ident GlobalOcc
gids
(Ident
i:[Ident]
is) ->
case forall key elt. Uniquable key => UniqFM key elt -> key -> Maybe elt
lookupUFM UniqFM Ident (IdKey, Id)
gidc Ident
i of
Maybe (IdKey, Id)
Nothing -> UniqFM Ident GlobalOcc -> [Ident] -> [GlobalOcc]
go UniqFM Ident GlobalOcc
gids [Ident]
is
Just (IdKey
_k,Id
gid) ->
let g :: GlobalOcc
g = Ident -> Id -> Word -> GlobalOcc
GlobalOcc Ident
i Id
gid Word
1
in UniqFM Ident GlobalOcc -> [Ident] -> [GlobalOcc]
go (forall key elt.
Uniquable key =>
(elt -> elt -> elt)
-> UniqFM key elt -> key -> elt -> UniqFM key elt
addToUFM_C GlobalOcc -> GlobalOcc -> GlobalOcc
inc UniqFM Ident GlobalOcc
gids Ident
i GlobalOcc
g) [Ident]
is
forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ UniqFM Ident GlobalOcc -> [Ident] -> [GlobalOcc]
go forall key elt. UniqFM key elt
emptyUFM (JStat -> [Ident]
identsS JStat
jst)