28 lines
522 B
Rust
28 lines
522 B
Rust
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// Testing that this impl turns A into a Quux, because
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// A is already a Foo Bar Baz
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impl<T: Foo Bar Baz> T: Quux { }
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trait Foo { fn f() -> int; }
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trait Bar { fn g() -> int; }
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trait Baz { fn h() -> int; }
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trait Quux: Foo, Bar, Baz { }
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struct A { x: int }
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impl A : Foo { fn f() -> int { 10 } }
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impl A : Bar { fn g() -> int { 20 } }
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impl A : Baz { fn h() -> int { 30 } }
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fn f<T: Quux>(a: &T) {
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assert a.f() == 10;
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assert a.g() == 20;
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assert a.h() == 30;
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}
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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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