-- friends:
import HsBinds ( HsBinds, MonoBinds, Sig(..), FixitySig(..) )
import HsExpr ( HsExpr )
+import HsImpExp ( ppr_var )
import HsTypes
import PprCore ( pprCoreRule )
import HsCore ( UfExpr, UfBinder, HsIdInfo, pprHsIdInfo,
eq_ufBinders, eq_ufExpr, pprUfExpr
)
-import CoreSyn ( CoreRule(..) )
-import BasicTypes ( NewOrData(..) )
-import Demand ( StrictnessMark(..) )
+import CoreSyn ( CoreRule(..), RuleName )
+import BasicTypes ( NewOrData(..), StrictnessMark(..), Activation(..) )
import ForeignCall ( CExportSpec, CCallSpec, DNCallSpec, CCallConv )
-- others:
import Class ( FunDep, DefMeth(..) )
import CStrings ( CLabelString )
import Outputable
+import Util ( eqListBy )
import SrcLoc ( SrcLoc )
+import FastString
+
+import Maybe ( isNothing, fromJust )
\end{code}
tcdLoc :: SrcLoc
}
- | ForeignType { tcdName :: name, -- See remarks about IfaceSig above
- tcdFoType :: FoType,
- tcdLoc :: SrcLoc }
+ | ForeignType { tcdName :: name, -- See remarks about IfaceSig above
+ tcdExtName :: Maybe FastString,
+ tcdFoType :: FoType,
+ tcdLoc :: SrcLoc }
| TyData { tcdND :: NewOrData,
tcdCtxt :: HsContext name, -- context
=> Outputable (TyClDecl name pat) where
ppr (IfaceSig {tcdName = var, tcdType = ty, tcdIdInfo = info})
- = hsep [ppr var, dcolon, ppr ty, pprHsIdInfo info]
+ = getPprStyle $ \ sty ->
+ hsep [ if ifaceStyle sty then ppr var else ppr_var var,
+ dcolon, ppr ty, pprHsIdInfo info
+ ]
ppr (ForeignType {tcdName = tycon})
= hsep [ptext SLIT("foreign import type dotnet"), ppr tycon]
ppr (TyData {tcdND = new_or_data, tcdCtxt = context, tcdName = tycon,
tcdTyVars = tyvars, tcdCons = condecls, tcdNCons = ncons,
tcdDerivs = derivings})
- = pp_tydecl (ptext keyword <+> pp_decl_head context tycon tyvars <+> equals)
+ = pp_tydecl (ptext keyword <+> pp_decl_head context tycon tyvars)
(pp_condecls condecls ncons)
derivings
where
where
top_matter = ptext SLIT("class") <+> pp_decl_head context clas tyvars <+> pprFundeps fds
ppr_sig sig = ppr sig <> semi
+
pp_methods = getPprStyle $ \ sty ->
- if ifaceStyle sty then empty else ppr methods
+ if ifaceStyle sty || isNothing methods
+ then empty
+ else ppr (fromJust methods)
pp_decl_head :: Outputable name => HsContext name -> name -> [HsTyVarBndr name] -> SDoc
pp_decl_head context thing tyvars = hsep [pprHsContext context, ppr thing, interppSP tyvars]
pp_condecls [] ncons = ptext SLIT("{- abstract with") <+> int ncons <+> ptext SLIT("constructors -}")
-pp_condecls (c:cs) ncons = sep (ppr c : map (\ c -> ptext SLIT("|") <+> ppr c) cs)
+pp_condecls (c:cs) ncons = equals <+> sep (ppr c : map (\ c -> ptext SLIT("|") <+> ppr c) cs)
pp_tydecl pp_head pp_decl_rhs derivings
= hang pp_head 4 (sep [
ppr_con_details con (InfixCon ty1 ty2)
= hsep [ppr_bang ty1, ppr con, ppr_bang ty2]
+-- ConDecls generated by MkIface.ifaceTyCls always have a VanillaCon, even
+-- if the constructor is an infix one. This is because in an interface file
+-- we don't distinguish between the two. Hence when printing these for the
+-- user, we need to parenthesise infix constructor names.
ppr_con_details con (VanillaCon tys)
- = ppr con <+> hsep (map (ppr_bang) tys)
+ = getPprStyle $ \ sty ->
+ hsep ((if ifaceStyle sty then ppr con else ppr_var con)
+ : map (ppr_bang) tys)
ppr_con_details con (RecCon fields)
- = ppr con <+> braces (hsep (punctuate comma (map ppr_field fields)))
+ = ppr con <+> braces (sep (punctuate comma (map ppr_field fields)))
where
ppr_field (ns, ty) = hsep (map (ppr) ns) <+>
dcolon <+>
\begin{code}
data RuleDecl name pat
= HsRule -- Source rule
- FAST_STRING -- Rule name
+ RuleName -- Rule name
+ Activation
[name] -- Forall'd tyvars, filled in by the renamer with
-- tyvars mentioned in sigs; then filled out by typechecker
[RuleBndr name] -- Forall'd term vars
SrcLoc
| IfaceRule -- One that's come in from an interface file; pre-typecheck
- FAST_STRING
+ RuleName
+ Activation
[UfBinder name] -- Tyvars and term vars
name -- Head of lhs
[UfExpr name] -- Args of LHS
name -- Head of LHS
CoreRule
-isIfaceRuleDecl (HsRule _ _ _ _ _ _) = False
-isIfaceRuleDecl other = True
+isIfaceRuleDecl :: RuleDecl name pat -> Bool
+isIfaceRuleDecl (HsRule _ _ _ _ _ _ _) = False
+isIfaceRuleDecl other = True
ifaceRuleDeclName :: RuleDecl name pat -> name
-ifaceRuleDeclName (IfaceRule _ _ n _ _ _) = n
-ifaceRuleDeclName (IfaceRuleOut n r) = n
-ifaceRuleDeclName (HsRule fs _ _ _ _ _) = pprPanic "ifaceRuleDeclName" (ppr fs)
+ifaceRuleDeclName (IfaceRule _ _ _ n _ _ _) = n
+ifaceRuleDeclName (IfaceRuleOut n r) = n
+ifaceRuleDeclName (HsRule fs _ _ _ _ _ _) = pprPanic "ifaceRuleDeclName" (ppr fs)
data RuleBndr name
= RuleBndr name
instance (NamedThing name, Ord name) => Eq (RuleDecl name pat) where
-- Works for IfaceRules only; used when comparing interface file versions
- (IfaceRule n1 bs1 f1 es1 rhs1 _) == (IfaceRule n2 bs2 f2 es2 rhs2 _)
- = n1==n2 && f1 == f2 &&
+ (IfaceRule n1 a1 bs1 f1 es1 rhs1 _) == (IfaceRule n2 a2 bs2 f2 es2 rhs2 _)
+ = n1==n2 && f1 == f2 && a1==a2 &&
eq_ufBinders emptyEqHsEnv bs1 bs2 (\env ->
eqListBy (eq_ufExpr env) (rhs1:es1) (rhs2:es2))
instance (NamedThing name, Outputable name, Outputable pat)
=> Outputable (RuleDecl name pat) where
- ppr (HsRule name tvs ns lhs rhs loc)
- = sep [text "{-# RULES" <+> doubleQuotes (ptext name),
+ ppr (HsRule name act tvs ns lhs rhs loc)
+ = sep [text "{-# RULES" <+> doubleQuotes (ptext name) <+> ppr act,
pp_forall, ppr lhs, equals <+> ppr rhs,
text "#-}" ]
where
fsep (map ppr tvs ++ map ppr ns)
<> dot
- ppr (IfaceRule name tpl_vars fn tpl_args rhs loc)
- = hsep [ doubleQuotes (ptext name),
+ ppr (IfaceRule name act tpl_vars fn tpl_args rhs loc)
+ = hsep [ doubleQuotes (ptext name), ppr act,
ptext SLIT("__forall") <+> braces (interppSP tpl_vars),
ppr fn <+> sep (map (pprUfExpr parens) tpl_args),
ptext SLIT("=") <+> ppr rhs
projects / ghc-hetmet.git / blobdiff