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#![feature(never_type)]
#[non_exhaustive]
pub enum UninhabitedEnum {
}
#[non_exhaustive]
pub struct UninhabitedStruct {
_priv: !,
}
#[non_exhaustive]
pub struct UninhabitedTupleStruct(!);
pub enum UninhabitedVariants {
#[non_exhaustive] Tuple(!),
#[non_exhaustive] Struct { x: ! }
}
struct A;
// This test checks that an empty match on a non-exhaustive uninhabited type from the defining crate
// will compile.
fn cannot_empty_match_on_empty_enum_to_anything(x: UninhabitedEnum) -> A {
match x {}
}
fn cannot_empty_match_on_empty_struct_to_anything(x: UninhabitedStruct) -> A {
match x {} //~ ERROR non-exhaustive patterns
}
fn cannot_empty_match_on_empty_tuple_struct_to_anything(x: UninhabitedTupleStruct) -> A {
match x {} //~ ERROR non-exhaustive patterns
}
fn cannot_empty_match_on_enum_with_empty_variants_struct_to_anything(x: UninhabitedVariants) -> A {
match x {} //~ ERROR non-exhaustive patterns
}
fn main() {}
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