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Merge #331

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331: Cancelled is not Copy r=matklad a=matklad

I'd love to have a backtrace in `Cancelled` to be able to debug "completion is always cancelled" problem. So it probably is a good idea to make `Cancelled` non Copy type, even if it is a ZST in prod.

Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
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bors[bot] 2018-12-25 10:40:42 +00:00
commit 5fb426cb9e
1 changed files with 1 additions and 1 deletions
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crates/ra_db/src/lib.rs
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@ -8,7 +8,7 @@ use std::sync::Arc;
use ra_editor::LineIndex; use ra_editor::LineIndex;
use ra_syntax::{TextUnit, SourceFileNode}; use ra_syntax::{TextUnit, SourceFileNode};
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)] #[derive(Clone, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
pub struct Canceled; pub struct Canceled;
pub type Cancelable<T> = Result<T, Canceled>; pub type Cancelable<T> = Result<T, Canceled>;