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Use injection syntax trees for bracket matching

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Previously we used the root syntax tree for bracket matching. We can use
the new functionality in `Syntax` for finding the correct syntax tree
for a given byte range though so we use the correct syntax tree within
injections. This improves bracket matching behavior within HTML
injections like script or style tags for example.
This commit is contained in:
Michael Davis 2024-01-25 14:05:42 -05:00 • committed by Blaž Hrastnik
parent 9978d421fe
commit 5e0b3cc28b
2 changed files with 9 additions and 8 deletions
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8
helix-core/src/match_brackets.rs
View file

@ -57,10 +57,10 @@ fn find_pair(
pos_: usize,
traverse_parents: bool,
) -> Option<usize> {
let tree = syntax.tree();
let pos = doc.char_to_byte(pos_);
let mut node = tree.root_node().descendant_for_byte_range(pos, pos + 1)?;
let root = syntax.tree_for_byte_range(pos, pos + 1).root_node();
let mut node = root.descendant_for_byte_range(pos, pos + 1)?;
loop {
if node.is_named() {
@ -118,9 +118,7 @@ fn find_pair(
};
node = parent;
}
let node = tree
.root_node()
.named_descendant_for_byte_range(pos, pos + 1)?;
let node = root.named_descendant_for_byte_range(pos, pos + 1)?;
if node.child_count() != 0 {
return None;
}

9
helix-core/src/syntax.rs
View file

@ -1338,7 +1338,7 @@ impl Syntax {
result
}
pub fn descendant_for_byte_range(&self, start: usize, end: usize) -> Option<Node<'_>> {
pub fn tree_for_byte_range(&self, start: usize, end: usize) -> &Tree {
let mut container_id = self.root;
for (layer_id, layer) in self.layers.iter() {
@ -1349,8 +1349,11 @@ impl Syntax {
}
}
self.layers[container_id]
.tree()
self.layers[container_id].tree()
}
pub fn descendant_for_byte_range(&self, start: usize, end: usize) -> Option<Node<'_>> {
self.tree_for_byte_range(start, end)
.root_node()
.descendant_for_byte_range(start, end)
}