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#![feature(let_chains)]
trait Demo {}
impl dyn Demo {
pub fn report(&self) -> u32 {
let sum = |a: u32,
b: u32,
c: u32| {
a + b + c
};
sum(1, 2, 3)
}
fn check(&self, val: Option<u32>, num: Option<u32>) {
if let Some(b) = val
&& let Some(c) = num {
&& b == c {
}
}
}
fn main() { } //~ ERROR this file contains an unclosed delimiter
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