rust/tests/ui/double_must_use.rs

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#![warn(clippy::double_must_use)]
#[must_use]
pub fn must_use_result() -> Result<(), ()> {
unimplemented!();
}
#[must_use]
pub fn must_use_tuple() -> (Result<(), ()>, u8) {
unimplemented!();
}
#[must_use]
pub fn must_use_array() -> [Result<(), ()>; 1] {
unimplemented!();
}
#[must_use = "With note"]
pub fn must_use_with_note() -> Result<(), ()> {
unimplemented!();
}
fn main() {
must_use_result();
must_use_tuple();
must_use_with_note();
}