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Location: CSY/reowolf/src/macros.rs - annotation
7b826a4cebeb
653 B
application/rls-services+xml
logging
91c57e99c66e 91c57e99c66e 91c57e99c66e 91c57e99c66e 91c57e99c66e 91c57e99c66e 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 06f259bf8031 | macro_rules! log {
($logger:expr, $($arg:tt)*) => {{
use std::fmt::Write;
writeln!($logger, $($arg)*).unwrap();
}};
}
macro_rules! assert_let {
($pat:pat = $expr:expr => $work:expr) => {
if let $pat = $expr {
$work
} else {
panic!("assert_let failed");
}
};
}
#[test]
fn assert_let() {
let x = Some(5);
let z = assert_let![Some(y) = x => {
println!("{:?}", y);
3
}];
println!("{:?}", z);
}
#[test]
#[should_panic]
fn must_let_panic() {
let x: Option<u32> = None;
assert_let![Some(y) = x => {
println!("{:?}", y);
}];
}
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