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// 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(|x| x + 1)
// Should lint even though this call is on a separate line.
.unwrap_or_else(|| 0);
// 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(|x| x + 1)
// should lint even though this call is on a separate line
.unwrap_or_else(|_e| 0);
// macro case
let _ = opt_map!(res, |x| x + 1).unwrap_or_else(|_e| 0); // should not lint
}
fn main() {
option_methods();
result_methods();
}
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