%
+% (c) The University of Glasgow 2006
% (c) The GRASP/AQUA Project, Glasgow University, 1992-1998
%
-\section[HsImpExp]{Abstract syntax: imports, exports, interfaces}
+
+HsImpExp: Abstract syntax: imports, exports, interfaces
\begin{code}
-module HsImpExp where
+{-# OPTIONS -fno-warn-incomplete-patterns #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
-#include "HsVersions.h"
+module HsImpExp where
import Module ( ModuleName )
+import HsDoc ( HsDoc )
+
import Outputable
import FastString
import SrcLoc ( Located(..) )
\begin{code}
instance (Outputable name) => Outputable (ImportDecl name) where
ppr (ImportDecl mod from qual as spec)
- = hang (hsep [ptext SLIT("import"), ppr_imp from,
+ = hang (hsep [ptext (sLit "import"), ppr_imp from,
pp_qual qual, ppr mod, pp_as as])
4 (pp_spec spec)
where
pp_qual False = empty
- pp_qual True = ptext SLIT("qualified")
+ pp_qual True = ptext (sLit "qualified")
pp_as Nothing = empty
- pp_as (Just a) = ptext SLIT("as ") <+> ppr a
+ pp_as (Just a) = ptext (sLit "as ") <+> ppr a
- ppr_imp True = ptext SLIT("{-# SOURCE #-}")
+ ppr_imp True = ptext (sLit "{-# SOURCE #-}")
ppr_imp False = empty
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)
+ = ptext (sLit "hiding") <+> parens (interpp'SP spec)
+ideclName :: ImportDecl name -> Located ModuleName
ideclName (ImportDecl mod_nm _ _ _ _) = mod_nm
\end{code}
type LIE name = Located (IE name)
data IE name
- = IEVar name
- | 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 ModuleName -- (Export Only)
+ = IEVar name
+ | 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 ModuleName -- (Export Only)
+ | IEGroup Int (HsDoc name) -- Doc section heading
+ | IEDoc (HsDoc name) -- Some documentation
+ | IEDocNamed String -- Reference to named doc
\end{code}
\begin{code}
ieNames (IEThingAll n ) = [n]
ieNames (IEThingWith n ns) = n:ns
ieNames (IEModuleContents _ ) = []
+ieNames (IEGroup _ _ ) = []
+ieNames (IEDoc _ ) = []
+ieNames (IEDocNamed _ ) = []
\end{code}
\begin{code}
ppr (IEThingWith thing withs)
= ppr thing <> parens (fsep (punctuate comma (map pprHsVar withs)))
ppr (IEModuleContents mod)
- = ptext SLIT("module") <+> ppr mod
+ = ptext (sLit "module") <+> ppr mod
+ ppr (IEGroup n _) = text ("<IEGroup: " ++ (show n) ++ ">")
+ ppr (IEDoc doc) = ppr doc
+ ppr (IEDocNamed string) = text ("<IEDocNamed: " ++ string ++ ">")
\end{code}
\begin{code}
isOperator :: SDoc -> Bool
isOperator ppr_v
= case showSDocUnqual ppr_v of
- ('(':s) -> False -- (), (,) etc
- ('[':s) -> False -- []
- ('$':c:s) -> not (isAlpha c) -- Don't treat $d as an operator
- (':':c:s) -> not (isAlpha c) -- Don't treat :T as an operator
- ('_':s) -> False -- Not an operator
- (c:s) -> not (isAlpha c) -- Starts with non-alpha
- other -> False
+ ('(':_) -> False -- (), (,) etc
+ ('[':_) -> False -- []
+ ('$':c:_) -> not (isAlpha c) -- Don't treat $d as an operator
+ (':':c:_) -> not (isAlpha c) -- Don't treat :T as an operator
+ ('_':_) -> False -- Not an operator
+ (c:_) -> not (isAlpha c) -- Starts with non-alpha
+ _ -> False
-- 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.