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make parent module cancelable

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This commit is contained in:
Aleksey Kladov 2018-10-20 21:52:49 +03:00
parent 61518580ed
commit c4b0d3cd56
3 changed files with 16 additions and 6 deletions
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11
crates/ra_analysis/src/lib.rs
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@ -42,6 +42,15 @@ pub struct Cancel;
pub type Cancelable<T> = Result<T, Cancel>;
impl std::fmt::Display for Cancel {
fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
fmt.write_str("Canceled")
}
}
impl std::error::Error for Cancel {
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct FileId(pub u32);
@ -225,7 +234,7 @@ impl Analysis {
pub fn find_all_refs(&self, file_id: FileId, offset: TextUnit, token: &JobToken) -> Vec<(FileId, TextRange)> {
self.imp.find_all_refs(file_id, offset, token)
}
pub fn parent_module(&self, file_id: FileId) -> Vec<(FileId, FileSymbol)> {
pub fn parent_module(&self, file_id: FileId) -> Cancelable<Vec<(FileId, FileSymbol)>> {
self.imp.parent_module(file_id)
}
pub fn crate_for(&self, file_id: FileId) -> Vec<CrateId> {