33 lines
838 B
Rust
33 lines
838 B
Rust
//@ aux-build:uninhabited.rs
|
|
#![deny(unreachable_patterns)]
|
|
#![feature(never_type)]
|
|
|
|
extern crate uninhabited;
|
|
|
|
use uninhabited::{
|
|
UninhabitedEnum, UninhabitedStruct, UninhabitedTupleStruct, UninhabitedVariants,
|
|
};
|
|
|
|
struct A;
|
|
|
|
// This test checks that non-exhaustive enums are never considered uninhabited outside their
|
|
// defining crate, and non-exhaustive structs are considered uninhabited the same way as normal
|
|
// ones.
|
|
fn cannot_empty_match_on_non_exhaustive_empty_enum(x: UninhabitedEnum) -> A {
|
|
match x {} //~ ERROR non-exhaustive patterns
|
|
}
|
|
|
|
fn empty_match_on_empty_struct(x: UninhabitedStruct) -> A {
|
|
match x {}
|
|
}
|
|
|
|
fn empty_match_on_empty_tuple_struct(x: UninhabitedTupleStruct) -> A {
|
|
match x {}
|
|
}
|
|
|
|
fn empty_match_on_enum_with_empty_variants_struct(x: UninhabitedVariants) -> A {
|
|
match x {}
|
|
}
|
|
|
|
fn main() {}
|