Moduleghc-10.0.0.20260917GHC2024

GHC.StgToJS.Closure

2 types
14 values

Packageghc-10.0.0.20260917
Exports16
LanguageGHC2024
LicenceBSD-3-Clause
SourceClosure.hs

valueclosureInfoStat :: Bool -> ClosureInfo -> JStgStat

Generate statements to set infotable field values for the given ClosureInfo

Depending on debug flag, it generates h$setObjInfo(...) or h$o(...). The latter form doesn't store the pretty-printed name in the closure to save space.

valueclosure

:: ClosureInfo
object being info'd see ciVar
-> JSM JStgStat
rhs
-> JSM JStgStat

Special case of closures that do not need to generate any fresh names

valueconClosure :: Ident -> FastString -> CILayout -> Int -> JSM JStgStat

datadata Closure

Used to pass arguments to newClosure with some safety

Constructors

Closure
- clInfo :: JStgExpr
  InfoTable object
- clField1 :: JStgExpr
  Payload field 1
- clField2 :: JStgExpr
  Payload field 2
- clMeta :: JStgExpr
- clCC :: Maybe JStgExpr

valuenewClosure :: Closure -> JStgExpr

valueassignClosure :: JStgExpr -> Closure -> JStgStat

datadata CopyCC

CopyCC DontCopyCC

valuecopyClosure :: CopyCC -> JStgExpr -> JStgExpr -> JStgStat

valuemkClosure :: JStgExpr -> [JStgExpr] -> JStgExpr -> Maybe JStgExpr -> Closure

valueallocData :: Int -> JStgExpr

valueallocClsA :: Int -> JStgExpr

valuedataName :: Int -> FastString

valueclsName :: Int -> FastString

valuedataFieldName :: Int -> FastString

valuevarName :: Int -> Ident

valuejsClosureCount :: Int

We use this in the RTS to determine the number of generated closures. These closures use the names cached here, so we bind them to the same number.