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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
#[doc(hidden)]
#[macro_export]
macro_rules! __with_dollar_sign {
($($body:tt)*) => {
macro_rules! __with_dollar_sign_ { $($body)* }
__with_dollar_sign_!($);
}
}
#[macro_export]
macro_rules! create {
($name:ident, $args:pat, $body:tt) => {
$crate::__with_dollar_sign! {
($d:tt) => {
macro_rules! $name {
($d($d pname:ident: $d values:expr,)*) => {
mod $name {
#![ allow( unused_imports ) ]
use super::*;
$d(
#[test]
fn $d pname() {
let $args = $d values;
$body
}
)*
}}}}}}}
#[cfg(test)]
mod tests {
create!{ basic, n, { assert!(n > 0); } }
basic! {
one: 1,
two: 2,
ten: 10,
}
create!{ multi_arg, (n, m), { assert!(n > m); } }
multi_arg! {
a: (10, 5),
b: (4, 0),
c: (1000, 500),
}
fn helper(arg: bool) -> bool { arg }
create!{ calls_helper, arg, { assert!(helper(arg)); } }
calls_helper! {
arg: true,
}
}