rust/tests/ui/ok_if_let.rs

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// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
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#![warn(clippy::if_let_some_result)]
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fn str_to_int(x: &str) -> i32 {
if let Some(y) = x.parse().ok() {
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y
} else {
0
}
}
fn str_to_int_ok(x: &str) -> i32 {
if let Ok(y) = x.parse() {
y
} else {
0
}
}
fn main() {
let y = str_to_int("1");
let z = str_to_int_ok("2");
println!("{}{}", y, z);
}