55 lines
1.1 KiB
Rust
55 lines
1.1 KiB
Rust
// run-rustfix
|
|
// aux-build:option_helpers.rs
|
|
|
|
#![warn(clippy::map_unwrap_or)]
|
|
|
|
#[macro_use]
|
|
extern crate option_helpers;
|
|
|
|
use std::collections::HashMap;
|
|
|
|
#[rustfmt::skip]
|
|
fn option_methods() {
|
|
let opt = Some(1);
|
|
|
|
// Check for `option.map(_).unwrap_or_else(_)` use.
|
|
// single line case
|
|
let _ = opt.map_or_else(|| 0, |x| x + 1);
|
|
|
|
// Macro case.
|
|
// Should not lint.
|
|
let _ = opt_map!(opt, |x| x + 1).unwrap_or_else(|| 0);
|
|
|
|
// Issue #4144
|
|
{
|
|
let mut frequencies = HashMap::new();
|
|
let word = "foo";
|
|
|
|
frequencies
|
|
.get_mut(word)
|
|
.map(|count| {
|
|
*count += 1;
|
|
})
|
|
.unwrap_or_else(|| {
|
|
frequencies.insert(word.to_owned(), 1);
|
|
});
|
|
}
|
|
}
|
|
|
|
#[rustfmt::skip]
|
|
fn result_methods() {
|
|
let res: Result<i32, ()> = Ok(1);
|
|
|
|
// Check for `result.map(_).unwrap_or_else(_)` use.
|
|
// single line case
|
|
let _ = res.map_or_else(|_e| 0, |x| x + 1);
|
|
|
|
// macro case
|
|
let _ = opt_map!(res, |x| x + 1).unwrap_or_else(|_e| 0); // should not lint
|
|
}
|
|
|
|
fn main() {
|
|
option_methods();
|
|
result_methods();
|
|
}
|