rust/crates/ra_parser/src/grammar/attributes.rs
2019-09-10 01:00:38 +03:00

32 lines
579 B
Rust

use super::*;
pub(super) fn inner_attributes(p: &mut Parser) {
while p.at(T![#]) && p.nth(1) == T![!] {
attribute(p, true)
}
}
pub(super) fn outer_attributes(p: &mut Parser) {
while p.at(T![#]) {
attribute(p, false)
}
}
fn attribute(p: &mut Parser, inner: bool) {
let attr = p.start();
assert!(p.at(T![#]));
p.bump_any();
if inner {
assert!(p.at(T![!]));
p.bump_any();
}
if p.at(T!['[']) {
items::token_tree(p);
} else {
p.error("expected `[`");
}
attr.complete(p, ATTR);
}