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rust-clippy/tests/ui/must_use_unit.fixed

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//@aux-build:proc_macros.rs
#![warn(clippy::must_use_unit)]
#![allow(clippy::unused_unit)]
extern crate proc_macros;
use proc_macros::external;
pub fn must_use_default() {}
pub fn must_use_unit() -> () {}
pub fn must_use_with_note() {}
fn main() {
must_use_default();
must_use_unit();
must_use_with_note();
// We should not lint in external macros
external!(
#[must_use]
fn foo() {}
);
}