diff options
Diffstat (limited to 'src/libsyntax')
| -rw-r--r-- | src/libsyntax/ext/tt/macro_rules.rs | 4 |
1 files changed, 2 insertions, 2 deletions
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)") |