rust/tests/ui/obfuscated_if_else.rs
2025-02-15 13:38:42 +01:00

55 lines
1.6 KiB
Rust

#![warn(clippy::obfuscated_if_else)]
#![allow(clippy::unnecessary_lazy_evaluations, clippy::unit_arg, clippy::unused_unit)]
fn main() {
true.then_some("a").unwrap_or("b");
//~^ obfuscated_if_else
true.then(|| "a").unwrap_or("b");
//~^ obfuscated_if_else
let a = 1;
(a == 1).then_some("a").unwrap_or("b");
//~^ obfuscated_if_else
(a == 1).then(|| "a").unwrap_or("b");
//~^ obfuscated_if_else
let partial = (a == 1).then_some("a");
partial.unwrap_or("b"); // not lint
let mut a = 0;
true.then_some(a += 1).unwrap_or(());
//~^ obfuscated_if_else
true.then_some(()).unwrap_or(a += 2);
//~^ obfuscated_if_else
}
fn issue11141() {
// Parentheses are required around the left side of a binary expression
let _ = true.then_some(40).unwrap_or(17) | 2;
//~^ obfuscated_if_else
// Parentheses are required only for the leftmost expression
let _ = true.then_some(30).unwrap_or(17) | true.then_some(2).unwrap_or(3) | true.then_some(10).unwrap_or(1);
//~^ obfuscated_if_else
//~| obfuscated_if_else
//~| obfuscated_if_else
// Parentheses are not required around the right side of a binary expression
let _ = 2 | true.then_some(40).unwrap_or(17);
//~^ obfuscated_if_else
// Parentheses are not required for a cast
let _ = true.then_some(42).unwrap_or(17) as u8;
//~^ obfuscated_if_else
// Parentheses are not required for a deref
let _ = *true.then_some(&42).unwrap_or(&17);
//~^ obfuscated_if_else
// Parentheses are not required for a deref followed by a cast
let _ = *true.then_some(&42).unwrap_or(&17) as u8;
//~^ obfuscated_if_else
}