rust/src/test/compile-fail/kindck-owned-trait-contains.rs
Alex Crichton 8118406ecf syntax: Tweak parsing bounds on generics paths
The previous syntax was `Foo:Bound<trait-parameters>`, but this is a little
ambiguous because it was being parsed as `Foo: (Bound<trait-parameters)` rather
than `Foo: (Bound) <trait-parameters>`

This commit changes the syntax to `Foo<trait-parameters>: Bound` in order to be
clear where the trait parameters are going.

Closes #9265
2014-03-26 14:51:41 -07:00

32 lines
969 B
Rust

// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
trait Repeat<A> { fn get(&self) -> A; }
impl<A:Clone> Repeat<A> for A {
fn get(&self) -> A { self.clone() }
}
fn repeater<A:Clone>(v: A) -> ~Repeat<A>: {
~v as ~Repeat<A>: // No
}
fn main() {
// Error results because the type of is inferred to be
// ~Repeat<&'blk int> where blk is the lifetime of the block below.
let y = {
let tmp0 = 3;
let tmp1 = &tmp0; //~ ERROR `tmp0` does not live long enough
repeater(tmp1)
};
assert!(3 == *(y.get()));
}