54 lines
978 B
Rust
54 lines
978 B
Rust
use super::*;
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pub(super) fn inner_attrs(p: &mut Parser) {
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while p.at(T![#]) && p.nth(1) == T![!] {
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attr(p, true);
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}
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}
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pub(super) fn outer_attrs(p: &mut Parser) {
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while p.at(T![#]) {
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attr(p, false);
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}
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}
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fn attr(p: &mut Parser, inner: bool) {
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assert!(p.at(T![#]));
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let attr = p.start();
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p.bump(T![#]);
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if inner {
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p.bump(T![!]);
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}
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if p.eat(T!['[']) {
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meta(p);
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if !p.eat(T![']']) {
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p.error("expected `]`");
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}
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} else {
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p.error("expected `[`");
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}
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attr.complete(p, ATTR);
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}
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pub(super) fn meta(p: &mut Parser) {
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let meta = p.start();
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paths::use_path(p);
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match p.current() {
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T![=] => {
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p.bump(T![=]);
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if !expressions::expr(p) {
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p.error("expected expression");
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}
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}
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T!['('] | T!['['] | T!['{'] => items::token_tree(p),
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_ => {}
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}
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meta.complete(p, META);
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}
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