35 lines
803 B
Rust
35 lines
803 B
Rust
// 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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trait Balls: Sized {
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fn smeg() -> Result<Self, ()>;
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}
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impl Balls for () {
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fn smeg() -> Result<(), ()> { Ok(()) }
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}
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struct Flah;
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impl Flah {
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fn flah<T: Balls>(&self) -> Result<T, ()> {
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T::smeg()
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}
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}
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fn doit() -> Result<(), ()> {
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let _ = try!(Flah.flah());
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Ok(())
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}
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fn main() {
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let _ = doit();
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}
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