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1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 #![feature(associated_type_defaults)]
13 use std
::ops
::{Index}
;
18 type Children
= Index
<Self::ChildKey
, Output
=Hierarchy
>;
19 //~^ ERROR: the value of the associated type `ChildKey`
20 //~^^ ERROR: the value of the associated type `Children`
21 //~^^^ ERROR: the value of the associated type `Value`
23 fn data(&self) -> Option
<(Self::Value
, Self::Children
)>;