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remove outdated comment

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I believe this comment is now irrelevant, as a result of
commit 6757053cff
This commit is contained in:
John Clements 2014-07-07 14:27:07 -07:00
parent e59dd484c2
commit 7f575186f9
1 changed files with 0 additions and 12 deletions
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12
src/libsyntax/parse/parser.rs
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@ -3233,18 +3233,6 @@ impl<'a> Parser<'a> {
} else if is_ident(&self.token)
&& !token::is_any_keyword(&self.token)
&& self.look_ahead(1, |t| *t == token::NOT) {
// parse a macro invocation. Looks like there's serious
// overlap here; if this clause doesn't catch it (and it
// won't, for brace-delimited macros) it will fall through
// to the macro clause of parse_item_or_view_item. This
// could use some cleanup, it appears to me.
// whoops! I now have a guess: I'm guessing the "parens-only"
// rule here is deliberate, to allow macro users to use parens
// for things that should be parsed as stmt_mac, and braces
// for things that should expand into items. Tricky, and
// somewhat awkward... and probably undocumented. Of course,
// I could just be wrong.
check_expected_item(self, !item_attrs.is_empty());