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#![warn(clippy::result_map_unit_fn)]
#![allow(unused)]
#![allow(clippy::uninlined_format_args)]
fn do_nothing<T>(_: T) {}
fn diverge<T>(_: T) -> ! {
panic!()
}
fn plus_one(value: usize) -> usize {
value + 1
}
struct HasResult {
field: Result<usize, usize>,
}
impl HasResult {
fn do_result_nothing(&self, value: usize) {}
fn do_result_plus_one(&self, value: usize) -> usize {
value + 1
}
}
#[rustfmt::skip]
fn result_map_unit_fn() {
let x = HasResult { field: Ok(10) };
x.field.map(plus_one);
let _: Result<(), usize> = x.field.map(do_nothing);
if let Ok(x_field) = x.field { do_nothing(x_field) }
if let Ok(x_field) = x.field { do_nothing(x_field) }
if let Ok(x_field) = x.field { diverge(x_field) }
let captured = 10;
if let Ok(value) = x.field { do_nothing(value + captured) };
let _: Result<(), usize> = x.field.map(|value| do_nothing(value + captured));
if let Ok(value) = x.field { x.do_result_nothing(value + captured) }
if let Ok(value) = x.field { x.do_result_plus_one(value + captured); }
if let Ok(value) = x.field { do_nothing(value + captured) }
if let Ok(value) = x.field { do_nothing(value + captured) }
if let Ok(value) = x.field { do_nothing(value + captured); }
if let Ok(value) = x.field { do_nothing(value + captured); }
if let Ok(value) = x.field { diverge(value + captured) }
if let Ok(value) = x.field { diverge(value + captured) }
if let Ok(value) = x.field { diverge(value + captured); }
if let Ok(value) = x.field { diverge(value + captured); }
x.field.map(|value| plus_one(value + captured));
x.field.map(|value| { plus_one(value + captured) });
if let Ok(value) = x.field { let y = plus_one(value + captured); }
if let Ok(value) = x.field { plus_one(value + captured); }
if let Ok(value) = x.field { plus_one(value + captured); }
if let Ok(ref value) = x.field { do_nothing(value + captured) }
if let Ok(value) = x.field { println!("{:?}", value) }
}
fn main() {}
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