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#[lang = "sized"]
pub trait Sized {}
macro_rules! foo {
() => {"foo"};
(number) => { 12 };
(false) => { false };
}
pub const A: &'static str = foo!();
pub static B: &'static str = foo!();
pub trait Number {
const VALUE: u32;
}
impl Number for u32 {
const VALUE: u32 = foo!(number);
}
impl u32 {
pub const TWELVE: u32 = foo!(number);
}
pub enum E {
Variant = foo!(number),
}
pub fn f(c: bool) -> &'static str {
match c {
false => foo!(),
true if foo!(false) => "abc",
_ => "xyz"
}
}
fn main() {
let _ = A;
let _ = u32::VALUE - u32::TWELVE;
}
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