#![feature(plugin, never_type)] #![plugin(clippy)] #![deny(diverging_sub_expression)] #![allow(match_same_arms, logic_bug)] #[allow(empty_loop)] fn diverge() -> ! { loop {} } struct A; impl A { fn foo(&self) -> ! { diverge() } } #[allow(unused_variables, unnecessary_operation)] fn main() { let b = true; b || diverge(); //~ ERROR sub-expression diverges b || A.foo(); //~ ERROR sub-expression diverges } #[allow(dead_code, unused_variables)] fn foobar() { loop { let x = match 5 { 4 => return, 5 => continue, 6 => true || return, //~ ERROR sub-expression diverges 7 => true || continue, //~ ERROR sub-expression diverges 8 => break, 9 => diverge(), 3 => true || diverge(), //~ ERROR sub-expression diverges 10 => match 42 { 99 => return, _ => true || panic!("boo"), }, _ => true || break, //~ ERROR sub-expression diverges }; } }