blob: 8b5e5bcfe71ec04b529f160c7ffb829e7ec72553 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
use super::*;
#[derive(PartialEq, Eq)]
enum AttrKind {
Inner, Outer
}
pub(super) fn inner_attributes(p: &mut Parser) {
repeat(p, |p| attribute(p, AttrKind::Inner))
}
pub(super) fn outer_attributes(p: &mut Parser) {
repeat(p, |p| attribute(p, AttrKind::Outer))
}
fn attribute(p: &mut Parser, kind: AttrKind) -> bool {
if p.at(POUND) {
if kind == AttrKind::Inner && p.raw_lookahead(1) != EXCL {
return false;
}
p.start(ATTR);
p.bump();
if kind == AttrKind::Inner {
p.bump();
}
p.expect(L_BRACK) && meta_item(p) && p.expect(R_BRACK);
p.finish();
true
} else {
false
}
}
fn meta_item(p: &mut Parser) -> bool {
if p.at(IDENT) {
p.start(META_ITEM);
p.bump();
if p.eat(EQ) {
if !expressions::literal(p) {
p.error()
.message("expected literal")
.emit();
}
} else if p.eat(L_PAREN) {
comma_list(p, R_PAREN, meta_item_inner);
p.expect(R_PAREN);
}
p.finish();
true
} else {
false
}
}
fn meta_item_inner(p: &mut Parser) -> bool {
meta_item(p) || expressions::literal(p)
}
|
