32 lines
435 B
Rust
32 lines
435 B
Rust
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// Testing that we can cast to a subtrait and call subtrait
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// methods. Not testing supertrait methods
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trait Foo {
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fn f() -> int;
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}
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trait Bar : Foo {
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fn g() -> int;
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}
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struct A {
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x: int
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}
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impl A : Foo {
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fn f() -> int { 10 }
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}
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impl A : Bar {
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fn g() -> int { 20 }
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}
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fn main() {
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let a = &A { x: 3 };
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let afoo = a as &Foo;
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let abar = a as &Bar;
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assert afoo.f() == 10;
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assert abar.g() == 20;
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}
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