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>
This uses the layer parentage information from the parent commit to
traverse the layers. It's a similar API to `tree_sitter:TreeCursor`
but internally it does not use a `tree_sitter::TreeCursor` currently
because that interface is behaving very unexpectedly. Using the
`next_sibling`/`prev_sibling`/`parent` API on `tree_sitter::Node`
reflects the previous code's behavior so this should result in no
surprising changes.