blob: 3421333b8a07686cc17fac9bb896568510ce3aff (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
// Regression test for issue #115780.
// Ensure that we don't emit a parse error for the token sequence `Ident "<" Ty` in pattern position
// if we are inside a macro call since it can be valid input for a subsequent macro rule.
// See also #103534.
// check-pass
macro_rules! mdo {
($p: pat =<< $e: expr ; $( $t: tt )*) => {
$e.and_then(|$p| mdo! { $( $t )* })
};
(ret<$ty: ty> $e: expr;) => { Some::<$ty>($e) };
}
fn main() {
mdo! {
x_val =<< Some(0);
y_val =<< Some(1);
ret<(i32, i32)> (x_val, y_val);
};
}
|
