rust/src/test/compile-fail/move-fragments-2.rs
Kevin Butler b416762a5f Improve error message for variant values used as types
This also changes how variant values are printed in errors, they are no
longer printed in their parent scope. As far as I can tell, this is
leftover from pre-namespacing of enums.

Closes #17546.
2015-07-17 15:24:02 +01:00

88 lines
3.3 KiB
Rust

// 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.
// These are checking that enums are tracked; note that their output
// paths include "downcasts" of the path to a particular enum.
#![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_partial(p: Lonely<D, D>) {
//~^ ERROR parent_of_fragments: `$(local p)`
//~| ERROR assigned_leaf_path: `($(local p) as Lonely::Zero)`
match p {
Zero(..) => {}
_ => {}
}
}
#[rustc_move_fragments]
pub fn test_match_full(p: Lonely<D, D>) {
//~^ ERROR parent_of_fragments: `$(local p)`
//~| ERROR assigned_leaf_path: `($(local p) as Lonely::Zero)`
//~| ERROR assigned_leaf_path: `($(local p) as Lonely::One)`
//~| ERROR assigned_leaf_path: `($(local p) as Lonely::Two)`
match p {
Zero(..) => {}
One(..) => {}
Two(..) => {}
}
}
#[rustc_move_fragments]
pub fn test_match_bind_one(p: Lonely<D, D>) {
//~^ ERROR parent_of_fragments: `$(local p)`
//~| ERROR assigned_leaf_path: `($(local p) as Lonely::Zero)`
//~| ERROR parent_of_fragments: `($(local p) as Lonely::One)`
//~| ERROR moved_leaf_path: `($(local p) as Lonely::One).#0`
//~| ERROR assigned_leaf_path: `($(local p) as Lonely::Two)`
//~| ERROR assigned_leaf_path: `$(local data)`
match p {
Zero(..) => {}
One(data) => {}
Two(..) => {}
}
}
#[rustc_move_fragments]
pub fn test_match_bind_many(p: Lonely<D, D>) {
//~^ ERROR parent_of_fragments: `$(local p)`
//~| ERROR assigned_leaf_path: `($(local p) as Lonely::Zero)`
//~| ERROR parent_of_fragments: `($(local p) as Lonely::One)`
//~| ERROR moved_leaf_path: `($(local p) as Lonely::One).#0`
//~| ERROR assigned_leaf_path: `$(local data)`
//~| ERROR parent_of_fragments: `($(local p) as Lonely::Two)`
//~| ERROR moved_leaf_path: `($(local p) as Lonely::Two).#0`
//~| ERROR moved_leaf_path: `($(local p) as Lonely::Two).#1`
//~| ERROR assigned_leaf_path: `$(local left)`
//~| ERROR assigned_leaf_path: `$(local right)`
match p {
Zero(..) => {}
One(data) => {}
Two(left, right) => {}
}
}
pub fn main() { }