Fix finding injection layer in tree cursor with nested layers (#11365)

The `take_while` should limit the layers to those that can match the
input range so we don't always scan the entire `injection_layers`. We
can limit `depth == 1` layers to those that start before the search
`end`. Deeper layers overlap with shallower layers though so we need
to allow those layers as well in the `take_while`.

For example

```vue
<script setup lang="ts">
const foo = 'bar'.match(/foo/);
const bar = foo;
</script>
```

L2 and L3 are a typescript layer and the `/foo/` part is a small regex
layer. If you used `A-o` before the regex layer you would select the
entire typescript layer. The search in `layer_id_containing_byte_range`
would not consider the typescript layer since the regex layer comes
earlier in `injection_ranges` and that layer's start is after `end`.
The regex layer has a depth of `2` though so the change in this commit
allows scanning through that layer.

Co-authored-by: Pascal Kuthe <pascalkuthe@pm.me>
pull/11339/merge
Michael Davis 4 months ago committed by GitHub
parent ce809fb9ef
commit 22c1a40725
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194

@ -204,7 +204,7 @@ impl<'a> TreeCursor<'a> {
self.injection_ranges[start_idx..]
.iter()
.take_while(|range| range.start < end)
.take_while(|range| range.start < end || range.depth > 1)
.find_map(|range| (range.start <= start).then_some(range.layer_id))
.unwrap_or(self.root)
}

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