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Allow querying a diagnostic group by its id

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Co-Authored-By: Nathan Sobo <nathan@zed.dev>
This commit is contained in:
Antonio Scandurra 2021-11-04 15:16:59 +01:00
parent 78bbb83448
commit 2f4d8932dc
3 changed files with 96 additions and 0 deletions
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32
crates/buffer/src/anchor.rs
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@ -354,6 +354,38 @@ impl<T: Clone> AnchorRangeMultimap<T> {
.cursor::<()>()
.map(|entry| (entry.range.start..entry.range.end, &entry.value))
}
pub fn filter<'a, O, F>(
&'a self,
content: Content<'a>,
mut f: F,
) -> impl 'a + Iterator<Item = (usize, Range<O>, &T)>
where
O: FromAnchor,
F: 'a + FnMut(&'a T) -> bool,
{
let mut endpoint = Anchor {
full_offset: FullOffset(0),
bias: Bias::Left,
version: self.version.clone(),
};
self.entries
.cursor::<()>()
.enumerate()
.filter_map(move |(ix, entry)| {
if f(&entry.value) {
endpoint.full_offset = entry.range.start;
endpoint.bias = self.start_bias;
let start = O::from_anchor(&endpoint, &content);
endpoint.full_offset = entry.range.end;
endpoint.bias = self.end_bias;
let end = O::from_anchor(&endpoint, &content);
Some((ix, start..end, &entry.value))
} else {
None
}
})
}
}
impl<T: Clone> sum_tree::Item for AnchorRangeMultimapEntry<T> {