#![feature(never_type)] fn loop_break_return() -> i32 { let loop_value = loop { break return 0 }; // ok } fn loop_break_loop() -> i32 { let loop_value = loop { break loop {} }; // ok } fn loop_break_break() -> i32 { //~ ERROR mismatched types let loop_value = loop { break break }; } fn loop_break_return_2() -> i32 { let loop_value = loop { break { return 0; () } }; // ok } enum Void {} fn get_void() -> Void { panic!() } fn loop_break_void() -> i32 { //~ ERROR mismatched types let loop_value = loop { break get_void() }; } fn get_never() -> ! { panic!() } fn loop_break_never() -> i32 { let loop_value = loop { break get_never() }; // ok } fn main() {}