| // 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. |
| |
| trait Node { |
| fn zomg(); |
| } |
| |
| trait Graph<N: Node> { |
| fn nodes<'a, I: Iterator<Item=&'a N>>(&'a self) -> I |
| where N: 'a; |
| } |
| |
| impl<N: Node> Graph<N> for Vec<N> { |
| fn nodes<'a, I: Iterator<Item=&'a N>>(&self) -> I |
| where N: 'a |
| { |
| self.iter() //~ ERROR mismatched types |
| } |
| } |
| |
| struct Stuff; |
| |
| impl Node for Stuff { |
| fn zomg() { |
| println!("zomg"); |
| } |
| } |
| |
| fn iterate<N: Node, G: Graph<N>>(graph: &G) { |
| for node in graph.iter() { //~ ERROR no method named `iter` found |
| node.zomg(); |
| } |
| } |
| |
| pub fn main() { |
| let graph = Vec::new(); |
| |
| graph.push(Stuff); |
| |
| iterate(graph); //~ ERROR mismatched types |
| } |