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authorVadim Petrochenkov <vadim.petrochenkov@gmail.com>2016-03-06 15:54:44 +0300
committerVadim Petrochenkov <vadim.petrochenkov@gmail.com>2016-05-26 11:11:58 +0300
commitc038b454239a30cb8a734bcb2ff8a7e5e543939a (patch)
tree978a7e11ebc682cb15f3f3decb256c0ae2ea15cd /src/libsyntax/parse
parentd69aeaf662c637b454e8c7a5ddbd69b4978ec211 (diff)
downloadrust-c038b454239a30cb8a734bcb2ff8a7e5e543939a.tar.gz
rust-c038b454239a30cb8a734bcb2ff8a7e5e543939a.zip
Address review comments
Diffstat (limited to 'src/libsyntax/parse')
-rw-r--r--src/libsyntax/parse/parser.rs4
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()?);
             }