[project @ 1999-11-08 15:33:20 by simonmar]

Don't allow litlits in patterns.

[project @ 1999-11-08 15:33:20 by simonmar]
ce85eb65 · Simon Marlow · bd2fb1c5 · ce85eb65
Commit ce85eb65 authored 25 years ago by Simon Marlow
--- a/ghc/compiler/parser/ParseUtil.lhs
+++ b/ghc/compiler/parser/ParseUtil.lhs
@@ -186,7 +186,8 @@ checkPat (HsApp f x) args =
 checkPat e [] = case e of
 	EWildPat	   -> returnP WildPatIn
 	HsVar x		   -> returnP (VarPatIn x)
-	HsLit l            -> returnP (LitPatIn l)
+	HsLit (HsLitLit _) -> patFail
+	HsLit l 	   -> returnP (LitPatIn l)
 	ELazyPat e	   -> checkPat e [] `thenP` (returnP . LazyPatIn)
 	EAsPat n e	   -> checkPat e [] `thenP` (returnP . AsPatIn n)
        ExprWithTySig e t  -> checkPat e [] `thenP` \e ->