-- friends:
import HsTypes ( HsType )
+import HsImpExp ( IE(..), ieName )
import CoreSyn ( CoreExpr )
import PprCore () -- Instances for Outputable
--others:
import Id ( Id )
-import Name ( OccName, NamedThing(..) )
+import NameSet ( NameSet, nameSetToList )
import BasicTypes ( RecFlag(..), Fixity )
import Outputable
import Bag
nullBinds EmptyBinds = True
nullBinds (ThenBinds b1 b2) = nullBinds b1 && nullBinds b2
nullBinds (MonoBind b _ _) = nullMonoBinds b
+
+mkMonoBind :: MonoBinds id pat -> [Sig id] -> RecFlag -> HsBinds id pat
+mkMonoBind EmptyMonoBinds _ _ = EmptyBinds
+mkMonoBind mbinds sigs is_rec = MonoBind mbinds sigs is_rec
\end{code}
\begin{code}
-instance (Outputable pat, NamedThing id, Outputable id) =>
+instance (Outputable pat, Outputable id) =>
Outputable (HsBinds id pat) where
ppr binds = ppr_binds binds
SrcLoc
| FunMonoBind id
- Bool -- True => infix declaration
+ Bool -- True => infix declaration
[Match id pat]
SrcLoc
| CoreMonoBind id -- TRANSLATION
CoreExpr -- No zonking; this is a final CoreExpr with Ids and Types!
- | AbsBinds -- Binds abstraction; TRANSLATION
- [TyVar] -- Type variables
- [id] -- Dicts
- [([TyVar], id, id)] -- (type variables, polymorphic, momonmorphic) triples
+ | AbsBinds -- Binds abstraction; TRANSLATION
+ [TyVar] -- Type variables
+ [id] -- Dicts
+ [([TyVar], id, id)] -- (type variables, polymorphic, momonmorphic) triples
+ NameSet -- Set of *polymorphic* variables that have an INLINE pragma
(MonoBinds id pat) -- The "business end"
-- Creates bindings for *new* (polymorphic, overloaded) locals
in (fm,gm)
\begin{code}
-nullMonoBinds :: MonoBinds id pat -> Bool
+-- We keep the invariant that a MonoBinds is only empty
+-- if it is exactly EmptyMonoBinds
+nullMonoBinds :: MonoBinds id pat -> Bool
nullMonoBinds EmptyMonoBinds = True
-nullMonoBinds (AndMonoBinds bs1 bs2) = nullMonoBinds bs1 && nullMonoBinds bs2
nullMonoBinds other_monobind = False
andMonoBinds :: MonoBinds id pat -> MonoBinds id pat -> MonoBinds id pat
andMonoBinds mb1 mb2 = AndMonoBinds mb1 mb2
andMonoBindList :: [MonoBinds id pat] -> MonoBinds id pat
-andMonoBindList binds = foldr AndMonoBinds EmptyMonoBinds binds
+andMonoBindList binds
+ = loop1 binds
+ where
+ loop1 [] = EmptyMonoBinds
+ loop1 (EmptyMonoBinds : binds) = loop1 binds
+ loop1 (b:bs) = loop2 b bs
+
+ -- acc is non-empty
+ loop2 acc [] = acc
+ loop2 acc (EmptyMonoBinds : bs) = loop2 acc bs
+ loop2 acc (b:bs) = loop2 (acc `AndMonoBinds` b) bs
\end{code}
\begin{code}
-instance (NamedThing id, Outputable id, Outputable pat) =>
+instance (Outputable id, Outputable pat) =>
Outputable (MonoBinds id pat) where
ppr mbind = ppr_monobind mbind
+ppr_monobind :: (Outputable id, Outputable pat) => MonoBinds id pat -> SDoc
ppr_monobind EmptyMonoBinds = empty
ppr_monobind (AndMonoBinds binds1 binds2)
- = ($$) (ppr_monobind binds1) (ppr_monobind binds2)
+ = ppr_monobind binds1 $$ ppr_monobind binds2
ppr_monobind (PatMonoBind pat grhss locn)
= sep [ppr pat, nest 4 (pprGRHSs False grhss)]
ppr_monobind (CoreMonoBind name expr)
= sep [ppr name <+> equals, nest 4 (ppr expr)]
-ppr_monobind (AbsBinds tyvars dictvars exports val_binds)
- = ($$) (sep [ptext SLIT("AbsBinds"),
- brackets (interpp'SP tyvars),
- brackets (interpp'SP dictvars),
- brackets (interpp'SP exports)])
- (nest 4 (ppr val_binds))
+ppr_monobind (AbsBinds tyvars dictvars exports inlines val_binds)
+ = sep [ptext SLIT("AbsBinds"),
+ brackets (interpp'SP tyvars),
+ brackets (interpp'SP dictvars),
+ brackets (sep (punctuate comma (map ppr exports))),
+ brackets (interpp'SP (nameSetToList inlines))]
+ $$
+ nest 4 (ppr val_binds)
\end{code}
%************************************************************************
SrcLoc
| ClassOpSig name -- Selector name
- (Maybe name) -- Default-method name (if any)
+ name -- Default-method name (if any)
+ Bool -- True <=> there is an explicit, programmer-supplied
+ -- default declaration in the class decl
(HsType name)
SrcLoc
| SpecSig name -- specialise a function or datatype ...
(HsType name) -- ... to these types
- (Maybe name) -- ... maybe using this as the code for it
SrcLoc
| InlineSig name -- INLINE f
+ (Maybe Int) -- phase
SrcLoc
| NoInlineSig name -- NOINLINE f
+ (Maybe Int) -- phase
SrcLoc
| SpecInstSig (HsType name) -- (Class tys); should be a specialisation of the
-- current instance decl
SrcLoc
- | FixSig (FixitySig name) -- Fixity declaration
+ | FixSig (FixitySig name) -- Fixity declaration
+
+ | DeprecSig (Deprecation name) -- DEPRECATED
+ SrcLoc
data FixitySig name = FixitySig name Fixity SrcLoc
+
+-- We use exported entities for things to deprecate. Cunning trick (hack?):
+-- `IEModuleContents undefined' is used for module deprecation.
+data Deprecation name = Deprecation (IE name) DeprecTxt
+
+type DeprecTxt = FAST_STRING -- reason/explanation for deprecation
\end{code}
\begin{code}
sigsForMe f sigs
= filter sig_for_me sigs
where
- sig_for_me (Sig n _ _) = f n
- sig_for_me (ClassOpSig n _ _ _) = f n
- sig_for_me (SpecSig n _ _ _) = f n
- sig_for_me (InlineSig n _) = f n
- sig_for_me (NoInlineSig n _) = f n
- sig_for_me (SpecInstSig _ _) = False
- sig_for_me (FixSig (FixitySig n _ _)) = f n
-
-nonFixitySigs :: [Sig name] -> [Sig name]
-nonFixitySigs sigs = filter not_fix sigs
- where
- not_fix (FixSig _) = False
- not_fix other = True
+ sig_for_me (Sig n _ _) = f n
+ sig_for_me (ClassOpSig n _ _ _ _) = f n
+ sig_for_me (SpecSig n _ _) = f n
+ sig_for_me (InlineSig n _ _) = f n
+ sig_for_me (NoInlineSig n _ _) = f n
+ sig_for_me (SpecInstSig _ _) = False
+ sig_for_me (FixSig (FixitySig n _ _)) = f n
+ sig_for_me
+ (DeprecSig (Deprecation (IEModuleContents _) _) _) = False
+ sig_for_me
+ (DeprecSig (Deprecation d _) _) = f (ieName d)
+
+isFixitySig :: Sig name -> Bool
+isFixitySig (FixSig _) = True
+isFixitySig _ = False
+
+isClassOpSig :: Sig name -> Bool
+isClassOpSig (ClassOpSig _ _ _ _ _) = True
+isClassOpSig _ = False
+
+isPragSig :: Sig name -> Bool
+ -- Identifies pragmas
+isPragSig (SpecSig _ _ _) = True
+isPragSig (InlineSig _ _ _) = True
+isPragSig (NoInlineSig _ _ _) = True
+isPragSig (SpecInstSig _ _) = True
+isPragSig (DeprecSig _ _) = True
+isPragSig other = False
\end{code}
\begin{code}
-instance (NamedThing name, Outputable name) => Outputable (Sig name) where
+instance (Outputable name) => Outputable (Sig name) where
ppr sig = ppr_sig sig
-instance Outputable name => Outputable (FixitySig name) where
- ppr (FixitySig name fixity loc) = sep [ppr fixity, ppr name]
-
-
+ppr_sig :: Outputable name => Sig name -> SDoc
ppr_sig (Sig var ty _)
= sep [ppr var <+> dcolon, nest 4 (ppr ty)]
-ppr_sig (ClassOpSig var _ ty _)
- = sep [ppr (getOccName var) <+> dcolon, nest 4 (ppr ty)]
+ppr_sig (ClassOpSig var _ _ ty _)
+ = sep [ppr var <+> dcolon, nest 4 (ppr ty)]
-ppr_sig (SpecSig var ty using _)
+ppr_sig (SpecSig var ty _)
= sep [ hsep [text "{-# SPECIALIZE", ppr var, dcolon],
- nest 4 (hsep [ppr ty, pp_using using, text "#-}"])
+ nest 4 (ppr ty <+> text "#-}")
]
- where
- pp_using Nothing = empty
- pp_using (Just me) = hsep [char '=', ppr me]
-ppr_sig (InlineSig var _)
- = hsep [text "{-# INLINE", ppr var, text "#-}"]
+ppr_sig (InlineSig var phase _)
+ = hsep [text "{-# INLINE", ppr_phase phase, ppr var, text "#-}"]
-ppr_sig (NoInlineSig var _)
- = hsep [text "{-# NOINLINE", ppr var, text "#-}"]
+ppr_sig (NoInlineSig var phase _)
+ = hsep [text "{-# NOINLINE", ppr_phase phase, ppr var, text "#-}"]
ppr_sig (SpecInstSig ty _)
= hsep [text "{-# SPECIALIZE instance", ppr ty, text "#-}"]
ppr_sig (FixSig fix_sig) = ppr fix_sig
+
+ppr_sig (DeprecSig deprec _) = ppr deprec
+
+instance Outputable name => Outputable (FixitySig name) where
+ ppr (FixitySig name fixity loc) = sep [ppr fixity, ppr name]
+
+instance Outputable name => Outputable (Deprecation name) where
+ ppr (Deprecation (IEModuleContents _) txt)
+ = hsep [text "{-# DEPRECATED", doubleQuotes (ppr txt), text "#-}"]
+ ppr (Deprecation thing txt)
+ = hsep [text "{-# DEPRECATED", ppr thing, doubleQuotes (ppr txt), text "#-}"]
+
+ppr_phase :: Maybe Int -> SDoc
+ppr_phase Nothing = empty
+ppr_phase (Just n) = int n
\end{code}
projects / ghc-hetmet.git / blobdiff