diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/rustc_expand/src/mbe/macro_parser.rs | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/compiler/rustc_expand/src/mbe/macro_parser.rs b/compiler/rustc_expand/src/mbe/macro_parser.rs index a8db96a199d..5a6a2b2c57b 100644 --- a/compiler/rustc_expand/src/mbe/macro_parser.rs +++ b/compiler/rustc_expand/src/mbe/macro_parser.rs @@ -516,13 +516,14 @@ impl<'tt> TtParser<'tt> { } TokenTree::Token(t) => { - // Doc comments cannot appear in a matcher. - debug_assert!(!matches!(t, Token { kind: DocComment(..), .. })); - - // If the token matches, we can just advance the parser. Otherwise, this - // match hash failed, there is nothing to do, and hopefully another item in - // `cur_items` will match. - if token_name_eq(&t, token) { + // If it's a doc comment, we just ignore it and move on to the next tt in + // the matcher. If the token matches, we can just advance the parser. + // Otherwise, this match has failed, there is nothing to do, and hopefully + // another item in `cur_items` will match. + if matches!(t, Token { kind: DocComment(..), .. }) { + item.idx += 1; + self.cur_items.push(item); + } else if token_name_eq(&t, token) { item.idx += 1; self.next_items.push(item); } |