X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Ftypecheck%2FTcDefaults.lhs;h=66064c0dd5c9869e046d48facbfb0a8c11d1f728;hb=032e31a4f05e6e8e560d113c73dca47c0c18df10;hp=43f23a329ed6cf4b991cdb46f5e460a9761e67a0;hpb=7fc749a43b4b6b85d234fa95d4928648259584f4;p=ghc-hetmet.git diff --git a/compiler/typecheck/TcDefaults.lhs b/compiler/typecheck/TcDefaults.lhs index 43f23a3..66064c0 100644 --- a/compiler/typecheck/TcDefaults.lhs +++ b/compiler/typecheck/TcDefaults.lhs @@ -14,8 +14,6 @@ module TcDefaults ( tcDefaults ) where -#include "HsVersions.h" - import HsSyn import Name import Class @@ -29,6 +27,7 @@ import DynFlags import SrcLoc import Maybe import Outputable +import FastString \end{code} \begin{code} @@ -50,7 +49,7 @@ tcDefaults [] -- defaultDefaultTys tcDefaults [L locn (DefaultDecl [])] - = returnM (Just []) -- Default declaration specifying no types + = return (Just []) -- Default declaration specifying no types tcDefaults [L locn (DefaultDecl mono_tys)] = setSrcSpan locn $ @@ -61,7 +60,7 @@ tcDefaults [L locn (DefaultDecl mono_tys)] ; let deflt_clss | ovl_str = [num_class, is_str_class] | otherwise = [num_class] - ; tau_tys <- mappM (tc_default_ty deflt_clss) mono_tys + ; tau_tys <- mapM (tc_default_ty deflt_clss) mono_tys ; return (Just tau_tys) } @@ -86,19 +85,19 @@ check_instance ty cls = do { (_, mb_res) <- tryTc (tcSimplifyDefault [mkClassPred cls [ty]]) ; return (isJust mb_res) } -defaultDeclCtxt = ptext SLIT("When checking the types in a default declaration") +defaultDeclCtxt = ptext (sLit "When checking the types in a default declaration") dupDefaultDeclErr (L _ (DefaultDecl _) : dup_things) - = hang (ptext SLIT("Multiple default declarations")) + = hang (ptext (sLit "Multiple default declarations")) 4 (vcat (map pp dup_things)) where - pp (L locn (DefaultDecl _)) = ptext SLIT("here was another default declaration") <+> ppr locn + pp (L locn (DefaultDecl _)) = ptext (sLit "here was another default declaration") <+> ppr locn polyDefErr ty - = hang (ptext SLIT("Illegal polymorphic type in default declaration") <> colon) 4 (ppr ty) + = hang (ptext (sLit "Illegal polymorphic type in default declaration") <> colon) 4 (ppr ty) badDefaultTy ty deflt_clss - = hang (ptext SLIT("The default type") <+> quotes (ppr ty) <+> ptext SLIT("is not an instance of")) - 2 (foldr1 (\a b -> a <+> ptext SLIT("or") <+> b) (map (quotes. ppr) deflt_clss)) + = hang (ptext (sLit "The default type") <+> quotes (ppr ty) <+> ptext (sLit "is not an instance of")) + 2 (foldr1 (\a b -> a <+> ptext (sLit "or") <+> b) (map (quotes. ppr) deflt_clss)) \end{code}