23 lines
594 B
Rust
23 lines
594 B
Rust
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// aux-build:uninhabited.rs
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#![deny(unreachable_patterns)]
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#![feature(exhaustive_patterns)]
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#![feature(never_type)]
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extern crate uninhabited;
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use uninhabited::{
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UninhabitedEnum,
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};
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struct A;
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// This test checks that an empty match on a non-exhaustive uninhabited type from an extern crate
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// will not compile. In particular, this enables the `exhaustive_patterns` feature as this can
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// change the branch used in the compiler to determine this.
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fn cannot_empty_match_on_empty_enum_to_anything(x: UninhabitedEnum) -> A {
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match x {} //~ ERROR non-exhaustive patterns
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}
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fn main() {}
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