rust/tests/ui/macros/issue-8851.rs
2024-02-16 20:02:50 +00:00

31 lines
642 B
Rust

//@ run-pass
#![allow(dead_code)]
// after fixing #9384 and implementing hygiene for match bindings,
// this now fails because the insertion of the 'y' into the match
// doesn't cause capture. Making this macro hygienic (as I've done)
// could very well make this test case completely pointless....
//@ pretty-expanded FIXME #23616
enum T {
A(isize),
B(usize)
}
macro_rules! test {
($id:ident, $e:expr) => (
fn foo(t: T) -> isize {
match t {
T::A($id) => $e,
T::B($id) => $e
}
}
)
}
test!(y, 10 + (y as isize));
pub fn main() {
foo(T::A(20));
}