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#![warn(clippy::map_identity)]
#![allow(clippy::needless_return)]
fn main() {
let x: [u16; 3] = [1, 2, 3];
// should lint
let _: Vec<_> = x.iter().map(not_identity).collect();
let _: Vec<_> = x.iter().collect();
let _: Option<u8> = Some(3);
let _: Result<i8, f32> = Ok(-3);
// should not lint
let _: Vec<_> = x.iter().map(|x| 2 * x).collect();
let _: Vec<_> = x.iter().map(not_identity).map(|x| return x - 4).collect();
let _: Option<u8> = None.map(|x: u8| x - 1);
let _: Result<i8, f32> = Err(2.3).map(|x: i8| {
return x + 3;
});
let _: Result<u32, u32> = Ok(1);
let _: Result<u32, u32> = Ok(1).map_err(|a: u32| a * 42);
}
fn not_identity(x: &u16) -> u16 {
*x
}
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