26 lines
633 B
Rust
26 lines
633 B
Rust
//@ revisions: normal exhaustive_patterns
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#![cfg_attr(exhaustive_patterns, feature(exhaustive_patterns))]
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#![feature(never_type)]
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#![deny(unreachable_patterns)]
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fn main() {}
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fn foo(nevers: &[!]) {
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match nevers {
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//[normal]~^ ERROR non-exhaustive patterns: `&[_, ..]` not covered
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&[] => (),
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};
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match nevers {
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&[] => (),
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&[_] => (),
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&[_, _, ..] => (),
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};
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match nevers {
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//[exhaustive_patterns]~^ ERROR non-exhaustive patterns: `&[]` not covered
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//[normal]~^^ ERROR non-exhaustive patterns: `&[]` and `&[_, _, ..]` not covered
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&[_] => (),
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};
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}
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