\begin{code}
type LImportDecl name = Located (ImportDecl name)
+-- | A single Haskell @import@ declaration.
data ImportDecl name
- = ImportDecl (Located ModuleName) -- module name
- Bool -- True <=> {-# SOURCE #-} import
- Bool -- True => qualified
- (Maybe ModuleName) -- as Module
- (Maybe (Bool, [LIE name])) -- (True => hiding, names)
+ = ImportDecl {
+ ideclName :: Located ModuleName, -- ^ Module name.
+ ideclPkgQual :: Maybe FastString, -- ^ Package qualifier.
+ ideclSource :: Bool, -- ^ True <=> {-# SOURCE #-} import
+ ideclQualified :: Bool, -- ^ True => qualified
+ ideclAs :: Maybe ModuleName, -- ^ as Module
+ ideclHiding :: Maybe (Bool, [LIE name]) -- ^ (True => hiding, names)
+ }
\end{code}
\begin{code}
instance (Outputable name) => Outputable (ImportDecl name) where
- ppr (ImportDecl mod from qual as spec)
+ ppr (ImportDecl mod pkg from qual as spec)
= hang (hsep [ptext (sLit "import"), ppr_imp from,
- pp_qual qual, ppr mod, pp_as as])
+ pp_qual qual, pp_pkg pkg, ppr mod, pp_as as])
4 (pp_spec spec)
where
+ pp_pkg Nothing = empty
+ pp_pkg (Just p) = doubleQuotes (ftext p)
+
pp_qual False = empty
pp_qual True = ptext (sLit "qualified")
= parens (interpp'SP spec)
pp_spec (Just (True, spec))
= ptext (sLit "hiding") <+> parens (interpp'SP spec)
-
-ideclName :: ImportDecl name -> Located ModuleName
-ideclName (ImportDecl mod_nm _ _ _ _) = mod_nm
\end{code}
%************************************************************************