34 lines
979 B
Rust
34 lines
979 B
Rust
|
// Copyright 2014 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.
|
||
|
|
|
||
|
|
// Issue #5886: a complex instance of issue #2687.
|
||
|
|
|
||
|
|
trait Iterator<A> {
|
||
|
|
fn next(&mut self) -> Option<A>;
|
||
|
|
}
|
||
|
|
|
||
|
|
trait IteratorUtil<A> {
|
||
|
|
fn zip<B, U: Iterator<U>>(self, other: U) -> ZipIterator<Self, U>;
|
||
|
|
}
|
||
|
|
|
||
|
|
impl<A, T: Iterator<A>> IteratorUtil<A> for T {
|
||
|
|
fn zip<B, U: Iterator<B>>(self, other: U) -> ZipIterator<T, U> {
|
||
|
|
//~^ ERROR in method `zip`, type parameter 1 requires bound `Iterator<B>`
|
||
|
|
ZipIterator{a: self, b: other}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
struct ZipIterator<T, U> {
|
||
|
|
a: T, b: U
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() {}
|
||
|
|
|