36 lines
967 B
Rust
36 lines
967 B
Rust
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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use std::marker::MarkerTrait;
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// The main purpose of this test is to ensure that different impls of the same
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// trait can refer to each other without setting off the static recursion check
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// (as long as there's no actual recursion).
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trait Foo: MarkerTrait {
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const BAR: u32;
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}
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struct IsFoo1;
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impl Foo for IsFoo1 {
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const BAR: u32 = 1;
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}
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struct IsFoo2;
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impl Foo for IsFoo2 {
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const BAR: u32 = <IsFoo1 as Foo>::BAR;
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}
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fn main() {
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assert_eq!(<IsFoo1>::BAR, <IsFoo2 as Foo>::BAR);
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}
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