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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: ! }
}
pub struct IndirectUninhabitedEnum(UninhabitedEnum);
pub struct IndirectUninhabitedStruct(UninhabitedStruct);
pub struct IndirectUninhabitedTupleStruct(UninhabitedTupleStruct);
pub struct IndirectUninhabitedVariants(UninhabitedVariants);
struct A;
// This test checks that an empty match on a non-exhaustive uninhabited type through a level of
// indirection from the defining crate will not compile without `#![feature(exhaustive_patterns)]`.
fn cannot_empty_match_on_empty_enum_to_anything(x: IndirectUninhabitedEnum) -> A {
match x {} //~ ERROR non-exhaustive patterns
}
fn cannot_empty_match_on_empty_struct_to_anything(x: IndirectUninhabitedStruct) -> A {
match x {} //~ ERROR non-exhaustive patterns
}
fn cannot_empty_match_on_empty_tuple_struct_to_anything(x: IndirectUninhabitedTupleStruct) -> A {
match x {} //~ ERROR non-exhaustive patterns
}
fn cannot_empty_match_on_enum_with_empty_variants_struct_to_anything(
x: IndirectUninhabitedVariants,
) -> A {
match x {} //~ ERROR non-exhaustive patterns
}
fn main() {}
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