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Ignore layers without highlight captures, avoid cloning ranges

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This commit is contained in:
Blaž Hrastnik 2022-01-03 15:35:32 +09:00
parent 5135fa37eb
commit 72eb2ce1f1
1 changed files with 13 additions and 11 deletions
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24
helix-core/src/syntax.rs
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@ -638,7 +638,7 @@ pub fn highlight_iter<'a>(
let mut layers = self
.layers
.iter()
.map(|(_, layer)| {
.flat_map(|(_, layer)| {
// Reuse a cursor from the pool if available.
let mut cursor = PARSER.with(|ts_parser| {
let highlighter = &mut ts_parser.borrow_mut();
@ -656,7 +656,7 @@ pub fn highlight_iter<'a>(
// cursor_ref.set_byte_range(range.clone().unwrap_or(0..usize::MAX));
cursor_ref.set_byte_range(0..usize::MAX);
let captures = cursor_ref
let mut captures = cursor_ref
.captures(
&layer.config.query,
layer.tree().root_node(),
@ -664,7 +664,12 @@ pub fn highlight_iter<'a>(
)
.peekable();
HighlightIterLayer {
// If there's no captures, skip the layer
if captures.peek().is_none() {
return None;
}
Some(HighlightIterLayer {
highlight_end_stack: Vec::new(),
scope_stack: vec![LocalScope {
inherits: false,
@ -674,10 +679,10 @@ pub fn highlight_iter<'a>(
cursor,
_tree: None,
captures,
config: layer.config.as_ref(), // TODO: just reuse
depth: layer.depth, // TODO: just reuse
ranges: layer.ranges.clone(),
}
config: layer.config.as_ref(), // TODO: just reuse `layer`
depth: layer.depth, // TODO: just reuse `layer`
ranges: &layer.ranges, // TODO: temp
})
})
.collect::<Vec<_>>();
@ -701,9 +706,6 @@ pub fn highlight_iter<'a>(
last_highlight_range: None,
};
result.sort_layers();
for layer in &result.layers {
log::info!("> {:?} {:?}", layer.depth, layer.ranges); // <- for some reason layers are reversed here
}
result
}
// on_tokenize
@ -987,7 +989,7 @@ struct HighlightIterLayer<'a> {
highlight_end_stack: Vec<usize>,
scope_stack: Vec<LocalScope<'a>>,
depth: usize,
ranges: Vec<Range>, // TEMP
ranges: &'a [Range],
}
impl<'a> fmt::Debug for HighlightIterLayer<'a> {