mirror of https://github.com/rust-lang/rust
42 lines
693 B
Rust
42 lines
693 B
Rust
// Check that borrowck knows that moves in the pattern for if-let guards
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// only happen when the pattern is matched.
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//@ build-pass
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#![feature(if_let_guard)]
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#![allow(irrefutable_let_patterns)]
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fn same_pattern() {
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let x: Box<_> = Box::new(1);
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let v = (1, 2);
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match v {
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(1, 2) if let y = x => (),
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(1, 2) if let z = x => (),
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_ => (),
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}
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}
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fn or_pattern() {
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let x: Box<_> = Box::new(1);
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let v = (1, 2);
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match v {
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(1, _) | (_, 2) if let y = x => (),
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_ => (),
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}
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}
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fn main() {
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let x: Box<_> = Box::new(1);
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let v = (1, 2);
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match v {
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(1, 2) if let y = x => false,
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_ => { *x == 1 },
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};
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}
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