| // Copyright 2014-2015 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. |
| |
| // Test that we correctly compute the move fragments for a fn. |
| // |
| // Note that the code below is not actually incorrect; the |
| // `rustc_move_fragments` attribute is a hack that uses the error |
| // reporting mechanisms as a channel for communicating from the |
| // internals of the compiler. |
| |
| // This checks the handling of `_` within variants, especially when mixed |
| // with bindings. |
| |
| #![feature(rustc_attrs)] |
| |
| use self::Lonely::{Zero, One, Two}; |
| |
| pub struct D { d: isize } |
| impl Drop for D { fn drop(&mut self) { } } |
| |
| pub enum Lonely<X,Y> { Zero, One(X), Two(X, Y) } |
| |
| #[rustc_move_fragments] |
| pub fn test_match_bind_and_underscore(p: Lonely<D, D>) { |
| //~^ ERROR parent_of_fragments: `$(local p)` |
| //~| ERROR assigned_leaf_path: `($(local p) as Lonely::Zero)` |
| //~| ERROR assigned_leaf_path: `($(local p) as Lonely::One)` |
| //~| ERROR parent_of_fragments: `($(local p) as Lonely::Two)` |
| //~| ERROR moved_leaf_path: `($(local p) as Lonely::Two).#0` |
| //~| ERROR unmoved_fragment: `($(local p) as Lonely::Two).#1` |
| //~| ERROR assigned_leaf_path: `$(local left)` |
| |
| match p { |
| Zero => {} |
| |
| One(_) => {} // <-- does not fragment `($(local p) as One)` ... |
| |
| Two(left, _) => {} // <-- ... *does* fragment `($(local p) as Two)`. |
| } |
| } |
| |
| pub fn main() { } |