rust/tests/ui/pattern/usefulness/slice_of_empty.rs

23 lines
375 B
Rust

#![feature(never_type)]
#![feature(exhaustive_patterns)]
#![deny(unreachable_patterns)]
fn main() {}
fn foo(nevers: &[!]) {
match nevers {
&[] => (),
};
match nevers {
&[] => (),
&[_] => (),
&[_, _, ..] => (),
};
match nevers {
//~^ ERROR non-exhaustive patterns: `&[]` not covered
&[_] => (),
};
}