ty1' <- zonkTcKind ty1
ty2' <- zonkTcKind ty2
let
- msg = hang (ptext SLIT("Couldn't match kind"))
+ msg = hang (ptext (sLit "Couldn't match kind"))
2 (sep [quotes (ppr ty1'),
- ptext SLIT("against"),
+ ptext (sLit "against"),
quotes (ppr ty2')])
failWithTc msg
-- tv1 and ty2 are zonked already
= return msg
where
- msg = (env2, ptext SLIT("When matching the kinds of") <+>
- sep [quotes pp_expected <+> ptext SLIT("and"), quotes pp_actual])
+ msg = (env2, ptext (sLit "When matching the kinds of") <+>
+ sep [quotes pp_expected <+> ptext (sLit "and"), quotes pp_actual])
(pp_expected, pp_actual) | swapped = (pp2, pp1)
| otherwise = (pp1, pp2)
extra = sep [ppr tidy_ty1, char '=', ppr tidy_ty2]
; failWithTcM (env2, hang msg 2 extra) }
where
- msg = ptext SLIT("Occurs check: cannot construct the infinite type:")
+ msg = ptext (sLit "Occurs check: cannot construct the infinite type:")
\end{code}
%************************************************************************
newCoVars :: [(TcType,TcType)] -> TcM [CoVar]
newCoVars spec
= do { us <- newUniqueSupply
- ; return [ mkCoVar (mkSysTvName uniq FSLIT("co"))
+ ; return [ mkCoVar (mkSysTvName uniq (fsLit "co"))
(mkCoKind ty1 ty2)
| ((ty1,ty2), uniq) <- spec `zip` uniqsFromSupply us] }
; ref <- newMutVar Flexi
; let name = mkSysTvName uniq fs
fs = case box_info of
- BoxTv -> FSLIT("t")
- TauTv -> FSLIT("t")
- SigTv _ -> FSLIT("a")
+ BoxTv -> fsLit "t"
+ TauTv -> fsLit "t"
+ SigTv _ -> fsLit "a"
-- We give BoxTv and TauTv the same string, because
-- otherwise we get user-visible differences in error
-- messages, which are confusing. If you want to see
; checkTc (not (isUnLiftedType ty)) (unliftedArgErr ty) }
----------------------------------------
-forAllTyErr ty = sep [ptext SLIT("Illegal polymorphic or qualified type:"), ppr ty]
-unliftedArgErr ty = sep [ptext SLIT("Illegal unlifted type:"), ppr ty]
-ubxArgTyErr ty = sep [ptext SLIT("Illegal unboxed tuple type as function argument:"), ppr ty]
-kindErr kind = sep [ptext SLIT("Expecting an ordinary type, but found a type of kind"), ppr kind]
+forAllTyErr ty = sep [ptext (sLit "Illegal polymorphic or qualified type:"), ppr ty]
+unliftedArgErr ty = sep [ptext (sLit "Illegal unlifted type:"), ppr ty]
+ubxArgTyErr ty = sep [ptext (sLit "Illegal unboxed tuple type as function argument:"), ppr ty]
+kindErr kind = sep [ptext (sLit "Expecting an ordinary type, but found a type of kind"), ppr kind]
\end{code}
Note [Liberal type synonyms]
| InstThetaCtxt -- Context of an instance decl
-- instance <S> => C [a] where ...
-pprSourceTyCtxt (ClassSCCtxt c) = ptext SLIT("the super-classes of class") <+> quotes (ppr c)
-pprSourceTyCtxt SigmaCtxt = ptext SLIT("the context of a polymorphic type")
-pprSourceTyCtxt (DataTyCtxt tc) = ptext SLIT("the context of the data type declaration for") <+> quotes (ppr tc)
-pprSourceTyCtxt InstThetaCtxt = ptext SLIT("the context of an instance declaration")
-pprSourceTyCtxt TypeCtxt = ptext SLIT("the context of a type")
+pprSourceTyCtxt (ClassSCCtxt c) = ptext (sLit "the super-classes of class") <+> quotes (ppr c)
+pprSourceTyCtxt SigmaCtxt = ptext (sLit "the context of a polymorphic type")
+pprSourceTyCtxt (DataTyCtxt tc) = ptext (sLit "the context of the data type declaration for") <+> quotes (ppr tc)
+pprSourceTyCtxt InstThetaCtxt = ptext (sLit "the context of an instance declaration")
+pprSourceTyCtxt TypeCtxt = ptext (sLit "the context of a type")
\end{code}
\begin{code}
arity = classArity cls
n_tys = length tys
arity_err = arityErr "Class" class_name arity n_tys
- how_to_allow = parens (ptext SLIT("Use -XFlexibleContexts to permit this"))
+ how_to_allow = parens (ptext (sLit "Use -XFlexibleContexts to permit this"))
check_pred_ty dflags ctxt pred@(EqPred ty1 ty2)
= do { -- Equational constraints are valid in all contexts if type
not (ct_var `elemVarSet` extended_tau_vars)
ambigErr pred
- = sep [ptext SLIT("Ambiguous constraint") <+> quotes (pprPred pred),
- nest 4 (ptext SLIT("At least one of the forall'd type variables mentioned by the constraint") $$
- ptext SLIT("must be reachable from the type after the '=>'"))]
+ = sep [ptext (sLit "Ambiguous constraint") <+> quotes (pprPred pred),
+ nest 4 (ptext (sLit "At least one of the forall'd type variables mentioned by the constraint") $$
+ ptext (sLit "must be reachable from the type after the '=>'"))]
\end{code}
In addition, GHC insists that at least one type variable
complain pred = addErrTc (freeErr pred)
freeErr pred
- = sep [ ptext SLIT("All of the type variables in the constraint") <+>
+ = sep [ ptext (sLit "All of the type variables in the constraint") <+>
quotes (pprPred pred)
- , ptext SLIT("are already in scope") <+>
- ptext SLIT("(at least one must be universally quantified here)")
+ , ptext (sLit "are already in scope") <+>
+ ptext (sLit "(at least one must be universally quantified here)")
, nest 4 $
- ptext SLIT("(Use -XFlexibleContexts to lift this restriction)")
+ ptext (sLit "(Use -XFlexibleContexts to lift this restriction)")
]
\end{code}
\begin{code}
checkThetaCtxt ctxt theta
- = vcat [ptext SLIT("In the context:") <+> pprTheta theta,
- ptext SLIT("While checking") <+> pprSourceTyCtxt ctxt ]
+ = vcat [ptext (sLit "In the context:") <+> pprTheta theta,
+ ptext (sLit "While checking") <+> pprSourceTyCtxt ctxt ]
-badPredTyErr sty = ptext SLIT("Illegal constraint") <+> pprPred sty
-eqPredTyErr sty = ptext SLIT("Illegal equational constraint") <+> pprPred sty
+badPredTyErr sty = ptext (sLit "Illegal constraint") <+> pprPred sty
+eqPredTyErr sty = ptext (sLit "Illegal equational constraint") <+> pprPred sty
$$
- parens (ptext SLIT("Use -XTypeFamilies to permit this"))
-predTyVarErr pred = sep [ptext SLIT("Non type-variable argument"),
- nest 2 (ptext SLIT("in the constraint:") <+> pprPred pred)]
-dupPredWarn dups = ptext SLIT("Duplicate constraint(s):") <+> pprWithCommas pprPred (map head dups)
+ parens (ptext (sLit "Use -XTypeFamilies to permit this"))
+predTyVarErr pred = sep [ptext (sLit "Non type-variable argument"),
+ nest 2 (ptext (sLit "in the constraint:") <+> pprPred pred)]
+dupPredWarn dups = ptext (sLit "Duplicate constraint(s):") <+> pprWithCommas pprPred (map head dups)
arityErr kind name n m
- = hsep [ text kind, quotes (ppr name), ptext SLIT("should have"),
+ = hsep [ text kind, quotes (ppr name), ptext (sLit "should have"),
n_arguments <> comma, text "but has been given", int m]
where
- n_arguments | n == 0 = ptext SLIT("no arguments")
- | n == 1 = ptext SLIT("1 argument")
- | True = hsep [int n, ptext SLIT("arguments")]
+ n_arguments | n == 0 = ptext (sLit "no arguments")
+ | n == 1 = ptext (sLit "1 argument")
+ | True = hsep [int n, ptext (sLit "arguments")]
-----------------
notMonoType ty
= do { ty' <- zonkTcType ty
; env0 <- tcInitTidyEnv
; let (env1, tidy_ty) = tidyOpenType env0 ty'
- msg = ptext SLIT("Cannot match a monotype with") <+> quotes (ppr tidy_ty)
+ msg = ptext (sLit "Cannot match a monotype with") <+> quotes (ppr tidy_ty)
; failWithTcM (env1, msg) }
notMonoArgs ty
= do { ty' <- zonkTcType ty
; env0 <- tcInitTidyEnv
; let (env1, tidy_ty) = tidyOpenType env0 ty'
- msg = ptext SLIT("Arguments of type synonym families must be monotypes") <+> quotes (ppr tidy_ty)
+ msg = ptext (sLit "Arguments of type synonym families must be monotypes") <+> quotes (ppr tidy_ty)
; failWithTcM (env1, msg) }
\end{code}
text "Use -XMultiParamTypeClasses if you want to allow more.")
instTypeErr pp_ty msg
- = sep [ptext SLIT("Illegal instance declaration for") <+> quotes pp_ty,
+ = sep [ptext (sLit "Illegal instance declaration for") <+> quotes pp_ty,
nest 4 msg]
\end{code}
(instTypeErr (pprClassPred clas inst_tys) msg)
}
where
- msg = parens (vcat [ptext SLIT("the Coverage Condition fails for one of the functional dependencies;"),
+ msg = parens (vcat [ptext (sLit "the Coverage Condition fails for one of the functional dependencies;"),
undecidableMsg])
\end{code}
= Nothing
predUndecErr pred msg = sep [msg,
- nest 2 (ptext SLIT("in the constraint:") <+> pprPred pred)]
+ nest 2 (ptext (sLit "in the constraint:") <+> pprPred pred)]
-nomoreMsg = ptext SLIT("Variable occurs more often in a constraint than in the instance head")
-smallerMsg = ptext SLIT("Constraint is no smaller than the instance head")
-undecidableMsg = ptext SLIT("Use -fallow-undecidable-instances to permit this")
+nomoreMsg = ptext (sLit "Variable occurs more often in a constraint than in the instance head")
+smallerMsg = ptext (sLit "Constraint is no smaller than the instance head")
+undecidableMsg = ptext (sLit "Use -fallow-undecidable-instances to permit this")
\end{code}
-- Error messages
tyFamInstInIndexErr ty
- = hang (ptext SLIT("Illegal type family application in type instance") <>
+ = hang (ptext (sLit "Illegal type family application in type instance") <>
colon) 4 $
ppr ty
polyTyErr ty
- = hang (ptext SLIT("Illegal polymorphic type in type instance") <> colon) 4 $
+ = hang (ptext (sLit "Illegal polymorphic type in type instance") <> colon) 4 $
ppr ty
famInstUndecErr ty msg
= sep [msg,
- nest 2 (ptext SLIT("in the type family application:") <+>
+ nest 2 (ptext (sLit "in the type family application:") <+>
pprType ty)]
-nestedMsg = ptext SLIT("Nested type family application")
-nomoreVarMsg = ptext SLIT("Variable occurs more often than in instance head")
-smallerAppMsg = ptext SLIT("Application is no smaller than the instance head")
+nestedMsg = ptext (sLit "Nested type family application")
+nomoreVarMsg = ptext (sLit "Variable occurs more often than in instance head")
+smallerAppMsg = ptext (sLit "Application is no smaller than the instance head")
\end{code}
projects / ghc-hetmet.git / blobdiff