mirror of https://github.com/rust-lang/rust
52 lines
750 B
Rust
52 lines
750 B
Rust
#[derive(PartialEq, Debug)]
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struct Bar;
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#[derive(Debug)]
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struct Baz;
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#[derive(Debug)]
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struct Foo;
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#[derive(Debug)]
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struct Fu;
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impl PartialEq for Baz {
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fn eq(&self, _: &Baz) -> bool {
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true
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}
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}
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impl PartialEq<Fu> for Foo {
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fn eq(&self, _: &Fu) -> bool {
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true
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}
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}
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impl PartialEq<Foo> for Fu {
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fn eq(&self, _: &Foo) -> bool {
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true
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}
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}
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impl PartialEq<Bar> for Foo {
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fn eq(&self, _: &Bar) -> bool {
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false
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}
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}
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impl PartialEq<Foo> for Bar {
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fn eq(&self, _: &Foo) -> bool {
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false
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}
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}
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#[test]
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fn eq_multidispatch() {
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assert!(Bar != Foo);
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assert!(Foo != Bar);
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assert_eq!(Bar, Bar);
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assert_eq!(Baz, Baz);
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assert_eq!(Foo, Fu);
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assert_eq!(Fu, Foo);
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}
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