mirror of https://github.com/rust-lang/rust
25 lines
594 B
Rust
25 lines
594 B
Rust
#![feature(if_let_guard)]
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enum VecWrapper { A(Vec<i32>) }
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fn if_guard(x: VecWrapper) -> usize {
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match x {
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VecWrapper::A(v) if { drop(v); false } => 1,
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//~^ ERROR cannot move out of `v` in pattern guard
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VecWrapper::A(v) => v.len()
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}
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}
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fn if_let_guard(x: VecWrapper) -> usize {
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match x {
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VecWrapper::A(v) if let Some(()) = { drop(v); None } => 1,
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//~^ ERROR cannot move out of `v` in pattern guard
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VecWrapper::A(v) => v.len()
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}
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}
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fn main() {
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if_guard(VecWrapper::A(vec![107]));
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if_let_guard(VecWrapper::A(vec![107]));
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}
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