mirror of https://github.com/rust-lang/rust
33 lines
985 B
Rust
33 lines
985 B
Rust
//@ aux-build:match_non_exhaustive_lib.rs
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/* The error message for non-exhaustive matches on non-local enums
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* marked as non-exhaustive should mention the fact that the enum
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* is marked as non-exhaustive (issue #85227).
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*/
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// Ignore non_exhaustive in the same crate
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#[non_exhaustive]
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enum L { A, B }
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extern crate match_non_exhaustive_lib;
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use match_non_exhaustive_lib::{E1, E2};
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fn foo() -> L {todo!()}
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fn bar() -> (E1, E2) {todo!()}
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fn main() {
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let l = foo();
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// No error for enums defined in this crate
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match l { L::A => (), L::B => () };
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// (except if the match is already non-exhaustive)
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match l { L::A => () };
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//~^ ERROR: non-exhaustive patterns: `L::B` not covered [E0004]
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// E1 is not visibly uninhabited from here
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let (e1, e2) = bar();
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match e1 {};
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//~^ ERROR: non-exhaustive patterns: type `E1` is non-empty [E0004]
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match e2 { E2::A => (), E2::B => () };
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//~^ ERROR: non-exhaustive patterns: `_` not covered [E0004]
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}
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