34 lines
850 B
Rust
34 lines
850 B
Rust
//! Test unreachable patterns involving deref patterns.
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#![feature(deref_patterns)]
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#![expect(incomplete_features)]
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#![deny(unreachable_patterns)]
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fn main() {
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match Box::new(false) {
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true => {}
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false => {}
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false => {} //~ ERROR unreachable pattern
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}
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match Box::new(Box::new(false)) {
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true => {}
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false => {}
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true => {} //~ ERROR unreachable pattern
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}
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match Box::new((true, Box::new(false))) {
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(true, _) => {}
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(_, true) => {}
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(false, false) => {}
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_ => {} //~ ERROR unreachable pattern
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}
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enum T { A, B, C }
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match Box::new((Box::new(T::A), Box::new(T::A))) {
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(T::A | T::B, T::A | T::C) => {}
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(T::A, T::C) => {} //~ ERROR unreachable pattern
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(T::B, T::A) => {} //~ ERROR unreachable pattern
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_ => {}
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}
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}
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