mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-24 03:53:20 +00:00
24 lines
918 B
Rust
24 lines
918 B
Rust
// run-rustfix
|
|
|
|
#![warn(clippy::all, clippy::pedantic)]
|
|
#![allow(clippy::missing_docs_in_private_items)]
|
|
#![allow(clippy::map_identity)]
|
|
|
|
fn main() {
|
|
// mapping to Option on Iterator
|
|
fn option_id(x: i8) -> Option<i8> {
|
|
Some(x)
|
|
}
|
|
let option_id_ref: fn(i8) -> Option<i8> = option_id;
|
|
let option_id_closure = |x| Some(x);
|
|
let _: Vec<_> = vec![5_i8; 6].into_iter().map(option_id).flatten().collect();
|
|
let _: Vec<_> = vec![5_i8; 6].into_iter().map(option_id_ref).flatten().collect();
|
|
let _: Vec<_> = vec![5_i8; 6].into_iter().map(option_id_closure).flatten().collect();
|
|
let _: Vec<_> = vec![5_i8; 6].into_iter().map(|x| x.checked_add(1)).flatten().collect();
|
|
|
|
// mapping to Iterator on Iterator
|
|
let _: Vec<_> = vec![5_i8; 6].into_iter().map(|x| 0..x).flatten().collect();
|
|
|
|
// mapping to Option on Option
|
|
let _: Option<_> = (Some(Some(1))).map(|x| x).flatten();
|
|
}
|