#include "HsVersions.h"
-import BasicTypes ( Module, IfaceFlavour(..) )
-import Name ( NamedThing )
+import Name ( isLexSym )
+import Module ( ModuleName, WhereFrom )
import Outputable
import SrcLoc ( SrcLoc )
\end{code}
One per \tr{import} declaration in a module.
\begin{code}
data ImportDecl name
- = ImportDecl Module -- module name
+ = ImportDecl ModuleName -- module name
+ WhereFrom
Bool -- True => qualified
- IfaceFlavour -- True => source imported module
- -- (current interpretation: ignore ufolding info)
- (Maybe Module) -- as Module
+ (Maybe ModuleName) -- as Module
(Maybe (Bool, [IE name])) -- (True => hiding, names)
SrcLoc
\end{code}
\begin{code}
-instance (NamedThing name, Outputable name) => Outputable (ImportDecl name) where
- ppr (ImportDecl mod qual as_source as spec _)
- = hang (hsep [ptext SLIT("import"), pp_src as_source,
- pp_qual qual, ptext mod, pp_as as])
+instance (Outputable name) => Outputable (ImportDecl name) where
+ ppr (ImportDecl mod from qual as spec _)
+ = hang (hsep [ptext SLIT("import"), ppr from,
+ pp_qual qual, ppr mod, pp_as as])
4 (pp_spec spec)
where
- pp_src HiFile = empty
- pp_src HiBootFile = ptext SLIT("{-# SOURCE #-}")
-
pp_qual False = empty
pp_qual True = ptext SLIT("qualified")
pp_as Nothing = empty
- pp_as (Just a) = ptext SLIT("as ") <+> ptext a
+ pp_as (Just a) = ptext SLIT("as ") <+> ppr a
pp_spec Nothing = empty
pp_spec (Just (False, spec))
= parens (interpp'SP spec)
pp_spec (Just (True, spec))
= ptext SLIT("hiding") <+> parens (interpp'SP spec)
+
+ideclName (ImportDecl mod_nm _ _ _ _ _) = mod_nm
\end{code}
%************************************************************************
| IEThingAbs name -- Class/Type (can't tell)
| IEThingAll name -- Class/Type plus all methods/constructors
| IEThingWith name [name] -- Class/Type plus some methods/constructors
- | IEModuleContents Module -- (Export Only)
+ | IEModuleContents ModuleName -- (Export Only)
\end{code}
\begin{code}
ieName (IEThingAbs n) = n
ieName (IEThingWith n _) = n
ieName (IEThingAll n) = n
+
+ieNames :: IE a -> [a]
+ieNames (IEVar n ) = [n]
+ieNames (IEThingAbs n ) = [n]
+ieNames (IEThingAll n ) = [n]
+ieNames (IEThingWith n ns) = n:ns
+ieNames (IEModuleContents _ ) = []
\end{code}
\begin{code}
-instance (NamedThing name, Outputable name) => Outputable (IE name) where
- ppr (IEVar var) = ppr var
+instance (Outputable name) => Outputable (IE name) where
+ ppr (IEVar var) = ppr_var var
ppr (IEThingAbs thing) = ppr thing
ppr (IEThingAll thing) = hcat [ppr thing, text "(..)"]
ppr (IEThingWith thing withs)
- = ppr thing <> parens (fsep (punctuate comma (map ppr withs)))
+ = ppr thing <> parens (fsep (punctuate comma (map ppr_var withs)))
ppr (IEModuleContents mod)
- = ptext SLIT("module") <+> ptext mod
+ = ptext SLIT("module") <+> ppr mod
+
+ppr_var v | isOperator v = parens (ppr v)
+ | otherwise = ppr v
+\end{code}
+
+\begin{code}
+isOperator :: Outputable a => a -> Bool
+isOperator v = isLexSym (_PK_ (showSDocUnqual (ppr v)))
+ -- We use (showSDoc (ppr v)), rather than isSymOcc (getOccName v) simply so
+ -- that we don't need NamedThing in the context of all these functions.
+ -- Gruesome, but simple.
\end{code}