2
0
Fork 0
mirror of https://github.com/rust-lang/rust-clippy synced 2024-12-28 05:53:35 +00:00
rust-clippy/tests/ui/result_map_unit_fn_fixable.rs

81 lines
1.8 KiB
Rust
Raw Normal View History

2019-09-25 16:03:32 +00:00
// run-rustfix
2018-07-28 15:34:52 +00:00
#![warn(clippy::result_map_unit_fn)]
2018-04-15 11:00:12 +00:00
#![allow(unused)]
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 {
2020-08-05 01:37:29 +00:00
fn do_result_nothing(&self, value: usize) {}
2018-04-15 11:00:12 +00:00
2020-08-05 01:37:29 +00:00
fn do_result_plus_one(&self, value: usize) -> usize {
2018-04-15 11:00:12 +00:00
value + 1
}
}
#[rustfmt::skip]
2018-04-15 11:00:12 +00:00
fn result_map_unit_fn() {
let x = HasResult { field: Ok(10) };
x.field.map(plus_one);
2018-12-09 22:26:16 +00:00
let _: Result<(), usize> = x.field.map(do_nothing);
2018-04-15 11:00:12 +00:00
x.field.map(do_nothing);
x.field.map(do_nothing);
x.field.map(diverge);
let captured = 10;
if let Ok(value) = x.field { do_nothing(value + captured) };
2018-12-09 22:26:16 +00:00
let _: Result<(), usize> = x.field.map(|value| do_nothing(value + captured));
2018-04-15 11:00:12 +00:00
x.field.map(|value| x.do_result_nothing(value + captured));
x.field.map(|value| { x.do_result_plus_one(value + captured); });
2018-04-15 11:00:12 +00:00
2018-12-09 22:26:16 +00:00
x.field.map(|value| do_nothing(value + captured));
2018-04-15 11:00:12 +00:00
x.field.map(|value| { do_nothing(value + captured) });
2018-04-15 11:00:12 +00:00
x.field.map(|value| { do_nothing(value + captured); });
x.field.map(|value| { { do_nothing(value + captured); } });
2018-04-15 11:00:12 +00:00
2018-12-09 22:26:16 +00:00
x.field.map(|value| diverge(value + captured));
2018-04-15 11:00:12 +00:00
x.field.map(|value| { diverge(value + captured) });
x.field.map(|value| { diverge(value + captured); });
x.field.map(|value| { { diverge(value + captured); } });
2018-04-15 11:00:12 +00:00
x.field.map(|value| plus_one(value + captured));
x.field.map(|value| { plus_one(value + captured) });
x.field.map(|value| { let y = plus_one(value + captured); });
2018-04-15 11:00:12 +00:00
x.field.map(|value| { plus_one(value + captured); });
2018-04-15 11:00:12 +00:00
x.field.map(|value| { { plus_one(value + captured); } });
2018-04-15 11:00:12 +00:00
x.field.map(|ref value| { do_nothing(value + captured) });
2018-04-15 11:00:12 +00:00
}
2018-12-09 22:26:16 +00:00
fn main() {}