module HsImpExp where
-import Ubiq{-uitous-}
+import Ubiq
--- friends:
-import HsDecls ( FixityDecl, TyDecl, ClassDecl, InstDecl )
-import HsBinds ( Sig )
-
--- others:
import Outputable
import PprStyle ( PprStyle(..) )
import Pretty
-import SrcLoc ( SrcLoc{-instances-} )
+import SrcLoc ( SrcLoc )
\end{code}
%************************************************************************
One per \tr{import} declaration in a module.
\begin{code}
-data ImportedInterface tyvar uvar name pat
- = ImportMod (Interface tyvar uvar name pat)
+data ImportDecl name
+ = ImportDecl Module -- module name
Bool -- qualified?
- (Maybe FAST_STRING) -- as Modid
+ (Maybe Module) -- as Module
(Maybe (Bool, [IE name])) -- (hiding?, names)
+ SrcLoc
\end{code}
\begin{code}
-instance (NamedThing name, Outputable name, Outputable pat,
- Eq tyvar, Outputable tyvar, Eq uvar, Outputable uvar)
- => Outputable (ImportedInterface tyvar uvar name pat) where
-
- ppr sty (ImportMod iface qual as spec)
- = ppAbove (ppHang (ppCat [ppStr "import", pp_qual qual, ppr PprForUser iface, pp_as as])
- 4 (pp_spec spec))
- (case sty of {PprForUser -> ppNil; _ -> ppr sty iface})
+instance (Outputable name) => Outputable (ImportDecl name) where
+ ppr sty (ImportDecl mod qual as spec _)
+ = ppHang (ppCat [ppStr "import", pp_qual qual, ppPStr mod, pp_as as])
+ 4 (pp_spec spec)
where
pp_qual False = ppNil
pp_qual True = ppStr "qualified"
| IEThingAbs name -- Constructor/Type/Class (can't tell)
| IEThingAll name -- Class/Type plus all methods/constructors
| IEThingWith name [name] -- Class/Type plus some methods/constructors
- | IEModuleContents FAST_STRING -- (Export Only)
+ | IEModuleContents Module -- (Export Only)
\end{code}
\begin{code}
ppr sty (IEModuleContents mod)
= ppBeside (ppPStr SLIT("module ")) (ppPStr mod)
\end{code}
-
-%************************************************************************
-%* *
-\subsection{Interfaces}
-%* *
-%************************************************************************
-
-\begin{code}
-data Interface tyvar uvar name pat
- = Interface FAST_STRING -- module name
- [IfaceImportDecl name]
- [FixityDecl name]
- [TyDecl name] -- data decls may have no constructors
- [ClassDecl tyvar uvar name pat] -- without default methods
- [InstDecl tyvar uvar name pat] -- without method defns
- [Sig name]
- SrcLoc
-\end{code}
-
-\begin{code}
-instance (NamedThing name, Outputable name, Outputable pat,
- Eq tyvar, Outputable tyvar, Eq uvar, Outputable uvar)
- => Outputable (Interface tyvar uvar name pat) where
-
- ppr PprForUser (Interface name _ _ _ _ _ _ _) = ppPStr name
-
- ppr sty (Interface name iimpdecls fixities tydecls classdecls instdecls sigs anns)
- = ppAboves [ppStr "{-",
- ifPprShowAll sty (ppr sty anns),
- ppCat [ppStr "interface", ppPStr name, ppStr "where"],
- ppNest 4 (ppAboves [
- pp_nonnull iimpdecls,
- pp_nonnull fixities,
- pp_nonnull tydecls,
- pp_nonnull classdecls,
- pp_nonnull instdecls,
- pp_nonnull sigs]),
- ppStr "-}"]
- where
- pp_nonnull [] = ppNil
- pp_nonnull xs = ppAboves (map (ppr sty) xs)
-\end{code}
-
-\begin{code}
-data IfaceImportDecl name
- = IfaceImportDecl FAST_STRING -- module we're being told about
- [IE name] -- things we're being told about
- SrcLoc
-\end{code}
-
-\begin{code}
-instance Outputable name => Outputable (IfaceImportDecl name) where
-
- ppr sty (IfaceImportDecl mod names src_loc)
- = ppHang (ppCat [ppPStr SLIT("import"), ppPStr mod, ppLparen])
- 4 (ppSep [ppCat [interpp'SP sty names, ppRparen]])
-\end{code}