From 4f58db485d82a8d4d4f03f9584ba6de347f704a5 Mon Sep 17 00:00:00 2001 From: Andy Caldwell Date: Fri, 24 Jul 2015 01:10:25 +0000 Subject: Make ICE an error and use a sensible error message --- src/libsyntax/ext/tt/macro_rules.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/libsyntax') diff --git a/src/libsyntax/ext/tt/macro_rules.rs b/src/libsyntax/ext/tt/macro_rules.rs index 634572d4694..e29e0ab54d1 100644 --- a/src/libsyntax/ext/tt/macro_rules.rs +++ b/src/libsyntax/ext/tt/macro_rules.rs @@ -302,8 +302,8 @@ fn check_lhs_nt_follows(cx: &mut ExtCtxt, lhs: &NamedMatch, sp: Span) { tt @ &TtSequence(..) => { check_matcher(cx, Some(tt).into_iter(), &Eof); }, - _ => cx.span_bug(sp, "wrong-structured lhs for follow check (didn't find \ - a TtDelimited or TtSequence)") + _ => cx.span_err(sp, "Invalid macro matcher; matchers must be contained \ + in balanced delimiters or a repetition indicator") }, _ => cx.span_bug(sp, "wrong-structured lhs for follow check (didn't find a \ MatchedNonterminal)") -- cgit 1.4.1-3-g733a5