35 lines
737 B
Rust
35 lines
737 B
Rust
// Test that use of structural-match traits is only permitted with a feature gate,
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// and that if a feature gate is supplied, it permits the type to be
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// used in a match.
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//@ revisions: with_gate no_gate
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//@[with_gate] check-pass
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// gate-test-structural_match
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#![allow(unused)]
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#![cfg_attr(with_gate, feature(structural_match))]
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struct Foo {
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x: u32
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}
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const FOO: Foo = Foo { x: 0 };
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fn main() {
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let y = Foo { x: 1 };
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match y {
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FOO => { }
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_ => { }
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}
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}
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impl std::marker::StructuralPartialEq for Foo { }
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//[no_gate]~^ ERROR use of unstable library feature `structural_match`
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impl PartialEq<Foo> for Foo {
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fn eq(&self, other: &Self) -> bool {
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self.x == other.x
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}
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}
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impl Eq for Foo { }
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