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
|
#[macro_use]
mod macros;
use proc_macro2::{Delimiter, Group, Ident, Punct, Spacing, Span, TokenStream, TokenTree};
use quote::quote;
use std::iter::FromIterator;
use syn::Type;
#[test]
fn test_mut_self() {
syn::parse_str::<Type>("fn(mut self)").unwrap();
syn::parse_str::<Type>("fn(mut self: ())").unwrap();
syn::parse_str::<Type>("fn(mut self: ...)").unwrap_err();
syn::parse_str::<Type>("fn(mut self: mut self)").unwrap_err();
syn::parse_str::<Type>("fn(mut self::T)").unwrap_err();
}
#[test]
fn test_macro_variable_type() {
// mimics the token stream corresponding to `$ty<T>`
let tokens = TokenStream::from_iter(vec![
TokenTree::Group(Group::new(Delimiter::None, quote! { ty })),
TokenTree::Punct(Punct::new('<', Spacing::Alone)),
TokenTree::Ident(Ident::new("T", Span::call_site())),
TokenTree::Punct(Punct::new('>', Spacing::Alone)),
]);
snapshot!(tokens as Type, @r###"
Type::Path {
path: Path {
segments: [
PathSegment {
ident: "ty",
arguments: PathArguments::AngleBracketed {
args: [
Type(Type::Path {
path: Path {
segments: [
PathSegment {
ident: "T",
arguments: None,
},
],
},
}),
],
},
},
],
},
}
"###);
}
|
