diff options
Diffstat (limited to 'src/libsyntax/parse/parser.rs')
| -rw-r--r-- | src/libsyntax/parse/parser.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs index a4f12769b5c..943910b1570 100644 --- a/src/libsyntax/parse/parser.rs +++ b/src/libsyntax/parse/parser.rs @@ -3426,6 +3426,10 @@ impl<'a> Parser<'a> { // `..` needs to be followed by `)` or `, pat`, `..,)` is disallowed. fields.push(self.parse_pat()?); } + } else if ddpos.is_some() && self.eat(&token::DotDot) { + // Emit a friendly error, ignore `..` and continue parsing + self.span_err(self.last_span, "`..` can only be used once per \ + tuple or tuple struct pattern"); } else { fields.push(self.parse_pat()?); } |