mirror of https://github.com/rust-lang/rust
36 lines
655 B
Rust
36 lines
655 B
Rust
//@ run-pass
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//@ edition:2021
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enum Variant {
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A,
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B, //~ WARNING: variant `B` is never constructed
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}
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struct A {
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field: Variant,
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}
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fn discriminant_is_a_ref() {
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let here = A { field: Variant::A };
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let out_ref = &here.field;
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|| match out_ref { //~ WARNING: unused closure that must be used
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Variant::A => (),
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Variant::B => (),
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};
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}
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fn discriminant_is_a_field() {
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let here = A { field: Variant::A };
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|| match here.field { //~ WARNING: unused closure that must be used
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Variant::A => (),
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Variant::B => (),
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};
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}
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fn main() {
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discriminant_is_a_ref();
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discriminant_is_a_field();
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}
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