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27 lines
537 B
Rust
27 lines
537 B
Rust
// run-pass
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#![allow(dead_code)]
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trait Foo { fn f(&self) -> isize; }
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trait Bar { fn g(&self) -> isize; }
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trait Baz { fn h(&self) -> isize; }
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trait Quux: Foo + Bar + Baz { }
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struct A { x: isize }
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impl Foo for A { fn f(&self) -> isize { 10 } }
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impl Bar for A { fn g(&self) -> isize { 20 } }
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impl Baz for A { fn h(&self) -> isize { 30 } }
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impl Quux for A {}
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fn f<T:Quux + Foo + Bar + Baz>(a: &T) {
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assert_eq!(a.f(), 10);
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assert_eq!(a.g(), 20);
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assert_eq!(a.h(), 30);
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}
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pub fn main() {
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let a = &A { x: 3 };
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f(a);
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}
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