rust/tests/ui/pattern/usefulness/unstable-gated-fields.rs

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#![feature(unstable_test_feature)]
// aux-build:unstable.rs
extern crate unstable;
use unstable::UnstableStruct;
fn main() {
let UnstableStruct { stable, stable2, } = UnstableStruct::default();
//~^ pattern does not mention field `unstable`
let UnstableStruct { stable, unstable, } = UnstableStruct::default();
//~^ pattern does not mention field `stable2`
// OK: stable field is matched
let UnstableStruct { stable, stable2, unstable } = UnstableStruct::default();
}