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Diffstat (limited to 'src/libsyntax/parse')
| -rw-r--r-- | src/libsyntax/parse/parser.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs index 8860d1b5cea..1a87d7fed69 100644 --- a/src/libsyntax/parse/parser.rs +++ b/src/libsyntax/parse/parser.rs @@ -570,6 +570,7 @@ impl parser { fn parse_arg_mode() -> mode { if self.eat(token::BINOP(token::AND)) { + self.warn(~"Obsolete syntax has no effect"); expl(by_mutbl_ref) } else if self.eat(token::BINOP(token::MINUS)) { expl(by_move) |