rust/tests/compile-fail/needless_bool.rs

14 lines
605 B
Rust

#![feature(plugin)]
#![plugin(clippy)]
#[allow(if_same_then_else)]
#[deny(needless_bool)]
fn main() {
let x = true;
if x { true } else { true }; //~ERROR this if-then-else expression will always return true
if x { false } else { false }; //~ERROR this if-then-else expression will always return false
if x { true } else { false }; //~ERROR you can reduce this if-then-else expression to just `x`
if x { false } else { true }; //~ERROR you can reduce this if-then-else expression to just `!x`
if x { x } else { false }; // would also be questionable, but we don't catch this yet
}