872ce47955
here. Some of this may have been poorly rebased, though I tried to be careful and preserve the spirit of the test.
48 lines
1.2 KiB
Rust
48 lines
1.2 KiB
Rust
// Copyright 2014 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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trait Node : MarkerTrait {
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fn zomg();
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}
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trait Graph<N: Node> {
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fn nodes<'a, I: Iterator<Item=&'a N>>(&'a self) -> I;
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}
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impl<N: Node> Graph<N> for Vec<N> {
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fn nodes<'a, I: Iterator<Item=&'a N>>(&self) -> I {
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self.iter() //~ ERROR mismatched types
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}
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}
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struct Stuff;
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impl Node for Stuff {
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fn zomg() {
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println!("zomg");
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}
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}
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fn iterate<N: Node, G: Graph<N>>(graph: &G) {
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for node in graph.iter() { //~ ERROR does not implement any method in scope named
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node.zomg(); //~ error: the type of this value must be known in this context
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}
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}
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pub fn main() {
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let graph = Vec::new();
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graph.push(Stuff);
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iterate(graph); //~ ERROR mismatched types
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}
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