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authorbors <bors@rust-lang.org>2019-01-02 09:24:10 +0000
committerbors <bors@rust-lang.org>2019-01-02 09:24:10 +0000
commitd3704932bd3bf72fefe62fe4c4a1a0d9b37cec6b (patch)
treeef3d5ca62781a7f778d7fb97755bcd7c0e6a1897 /src/libsyntax/parse/parser.rs
parent96530344ef951c79e07cad69cf65eddb876b0e2d (diff)
parent3df500db29b6f50c5c74e7735a9e007ae90206d7 (diff)
downloadrust-d3704932bd3bf72fefe62fe4c4a1a0d9b37cec6b.tar.gz
rust-d3704932bd3bf72fefe62fe4c4a1a0d9b37cec6b.zip
Auto merge of #57251 - petrochenkov:reregr, r=varkor
syntax: Fix regression in diagnostics for patterns in trait method parameters

Fixes https://github.com/rust-lang/rust/issues/55036
Diffstat (limited to 'src/libsyntax/parse/parser.rs')
-rw-r--r--src/libsyntax/parse/parser.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index 7c471fdebb3..1e4a26b3537 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -1878,7 +1878,8 @@ impl<'a> Parser<'a> {
             let parser_snapshot_before_ty = self.clone();
             self.eat_incorrect_doc_comment("a method argument's type");
             let mut ty = self.parse_ty();
-            if ty.is_ok() && self.token == token::Colon {
+            if ty.is_ok() && self.token != token::Comma &&
+               self.token != token::CloseDelim(token::Paren) {
                 // This wasn't actually a type, but a pattern looking like a type,
                 // so we are going to rollback and re-parse for recovery.
                 ty = self.unexpected();