blob: 72e7717b72f268e02a93fa5f161481ecdc274766 (
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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(T![#]);
if inner {
assert!(p.at(T![!]));
p.bump(T![!]);
}
if p.eat(T!['[']) {
paths::use_path(p);
let is_delimiter = |p: &mut Parser| match p.current() {
T!['('] | T!['['] | T!['{'] => true,
_ => false,
};
if p.eat(T![=]) {
if expressions::literal(p).is_none() {
p.error("expected literal");
}
} else if is_delimiter(p) {
items::token_tree(p);
}
if !p.eat(T![']']) {
p.error("expected `]`");
}
} else {
p.error("expected `[`");
}
attr.complete(p, ATTR);
}
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