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Find the layer with the smallest enclosing node in language_scope_at

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This commit is contained in:
Max Brunsfeld 2023-07-11 14:15:45 -07:00
parent bf9dfa3b51
commit 2e2333107a
6 changed files with 151 additions and 69 deletions
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27
crates/language/src/syntax_map.rs
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@ -771,8 +771,10 @@ impl SyntaxSnapshot {
range: Range<T>,
buffer: &'a BufferSnapshot,
) -> impl 'a + Iterator<Item = SyntaxLayerInfo> {
let start = buffer.anchor_before(range.start.to_offset(buffer));
let end = buffer.anchor_after(range.end.to_offset(buffer));
let start_offset = range.start.to_offset(buffer);
let end_offset = range.end.to_offset(buffer);
let start = buffer.anchor_before(start_offset);
let end = buffer.anchor_after(end_offset);
let mut cursor = self.layers.filter::<_, ()>(move |summary| {
if summary.max_depth > summary.min_depth {
@ -787,20 +789,21 @@ impl SyntaxSnapshot {
cursor.next(buffer);
iter::from_fn(move || {
while let Some(layer) = cursor.item() {
let mut info = None;
if let SyntaxLayerContent::Parsed { tree, language } = &layer.content {
let info = SyntaxLayerInfo {
let layer_start_offset = layer.range.start.to_offset(buffer);
let layer_start_point = layer.range.start.to_point(buffer).to_ts_point();
info = Some(SyntaxLayerInfo {
tree,
language,
depth: layer.depth,
offset: (
layer.range.start.to_offset(buffer),
layer.range.start.to_point(buffer).to_ts_point(),
),
};
cursor.next(buffer);
return Some(info);
} else {
cursor.next(buffer);
offset: (layer_start_offset, layer_start_point),
});
}
cursor.next(buffer);
if info.is_some() {
return info;
}
}
None