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introduce cancelable

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This commit is contained in:
Aleksey Kladov
2018-10-20 21:46:17 +03:00
parent 73dd870da2
commit 61518580ed
1 changed files with 5 additions and 0 deletions
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5
crates/ra_analysis/src/lib.rs
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@@ -37,6 +37,11 @@ pub use ra_editor::{
RunnableKind, StructureNode, RunnableKind, StructureNode,
}; };
#[derive(Clone, Copy, Debug)]
pub struct Cancel;
pub type Cancelable<T> = Result<T, Cancel>;
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct FileId(pub u32); pub struct FileId(pub u32);