blob: 8093b53bd5c84c3a54f75cc87b6a6a020d7d9b40 (
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
|
use syn::{
ext::IdentExt,
parse::{ParseStream, Result},
punctuated::Punctuated,
Ident, Path, PathArguments, PathSegment, Token,
};
fn parse_path_segment(input: ParseStream<'_>) -> Result<PathSegment> {
if input.peek(Token![super])
|| input.peek(Token![self])
|| input.peek(Token![crate])
|| input.peek(Token![extern])
{
let ident = input.call(Ident::parse_any)?;
return Ok(PathSegment::from(ident));
}
let ident = if input.peek(Token![Self]) {
input.call(Ident::parse_any)?
} else {
input.parse()?
};
if input.peek(Token![::]) && input.peek3(Token![<]) {
Ok(PathSegment {
ident,
arguments: PathArguments::AngleBracketed(input.parse()?),
})
} else {
Ok(PathSegment::from(ident))
}
}
pub(crate) fn parse_path(input: ParseStream<'_>) -> Result<Path> {
Ok(Path {
leading_colon: input.parse()?,
segments: {
let mut segments = Punctuated::new();
let value = parse_path_segment(input)?;
segments.push_value(value);
while input.peek(Token![::]) {
let punct: Token![::] = input.parse()?;
segments.push_punct(punct);
let value = parse_path_segment(input)?;
segments.push_value(value);
}
segments
},
})
}
|
