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//@run-rustfix
#![warn(clippy::manual_ok_or)]
#![allow(clippy::or_fun_call)]
#![allow(clippy::disallowed_names)]
#![allow(clippy::redundant_closure)]
#![allow(dead_code)]
#![allow(unused_must_use)]
fn main() {
// basic case
let foo: Option<i32> = None;
foo.map_or(Err("error"), |v| Ok(v));
// eta expansion case
foo.map_or(Err("error"), Ok);
// turbo fish syntax
None::<i32>.map_or(Err("error"), |v| Ok(v));
// multiline case
#[rustfmt::skip]
foo.map_or(Err::<i32, &str>(
&format!(
"{}{}{}{}{}{}{}",
"Alice", "Bob", "Sarah", "Marc", "Sandra", "Eric", "Jenifer")
),
|v| Ok(v),
);
// not applicable, closure isn't direct `Ok` wrapping
foo.map_or(Err("error"), |v| Ok(v + 1));
// not applicable, or side isn't `Result::Err`
foo.map_or(Ok::<i32, &str>(1), |v| Ok(v));
// not applicable, expr is not a `Result` value
foo.map_or(42, |v| v);
// TODO patterns not covered yet
match foo {
Some(v) => Ok(v),
None => Err("error"),
};
foo.map_or_else(|| Err("error"), |v| Ok(v));
}
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