rust/tests/ui/checked_unwrap/simple_conditionals.rs
Philipp Hansch 48bff49484
UI Test Cleanup: Split up checked_unwrap tests
This splits up `tests/ui/checked_unwrap.rs` into:

 * `tests/ui/checked_unwrap/complex.rs`
 * `tests/ui/checked_unwrap/simple.rs`

Based on the naming of the methods in the tests.

cc #2038
2019-07-16 21:23:43 +02:00

40 lines
1.2 KiB
Rust

#![deny(clippy::panicking_unwrap, clippy::unnecessary_unwrap)]
#![allow(clippy::if_same_then_else)]
fn main() {
let x = Some(());
if x.is_some() {
x.unwrap(); // unnecessary
} else {
x.unwrap(); // will panic
}
if x.is_none() {
x.unwrap(); // will panic
} else {
x.unwrap(); // unnecessary
}
let mut x: Result<(), ()> = Ok(());
if x.is_ok() {
x.unwrap(); // unnecessary
x.unwrap_err(); // will panic
} else {
x.unwrap(); // will panic
x.unwrap_err(); // unnecessary
}
if x.is_err() {
x.unwrap(); // will panic
x.unwrap_err(); // unnecessary
} else {
x.unwrap(); // unnecessary
x.unwrap_err(); // will panic
}
if x.is_ok() {
x = Err(());
x.unwrap(); // not unnecessary because of mutation of x
// it will always panic but the lint is not smart enough to see this (it only checks if conditions).
} else {
x = Ok(());
x.unwrap_err(); // not unnecessary because of mutation of x
// it will always panic but the lint is not smart enough to see this (it only checks if conditions).
}
}