Stop collecting highlight_iter events then turning back into iter

imgbot
Blaž Hrastnik 3 years ago
parent 5aead46f4b
commit 62561e9d23

@ -139,31 +139,34 @@ impl EditorView {
start..end start..end
}; };
// TODO: range doesn't actually restrict source, just highlight range match doc.syntax() {
let highlights = match doc.syntax() {
Some(syntax) => { Some(syntax) => {
syntax let iter = syntax
// TODO: range doesn't actually restrict source, just highlight range
.highlight_iter(text.slice(..), Some(range), None) .highlight_iter(text.slice(..), Some(range), None)
.map(|event| event.unwrap()) .map(|event| event.unwrap())
.collect() // TODO: we collect here to avoid holding the lock, fix later .map(move |event| match event {
// convert byte offsets to char offset
HighlightEvent::Source { start, end } => {
let start =
text.byte_to_char(ensure_grapheme_boundary_next_byte(text, start));
let end =
text.byte_to_char(ensure_grapheme_boundary_next_byte(text, end));
HighlightEvent::Source { start, end }
}
event => event,
});
Box::new(iter)
} }
None => vec![HighlightEvent::Source { None => Box::new(
start: range.start, [HighlightEvent::Source {
end: range.end, start: text.byte_to_char(range.start),
}], end: text.byte_to_char(range.end),
}]
.into_iter(),
),
} }
.into_iter()
.map(move |event| match event {
// convert byte offsets to char offset
HighlightEvent::Source { start, end } => {
let start = text.byte_to_char(ensure_grapheme_boundary_next_byte(text, start));
let end = text.byte_to_char(ensure_grapheme_boundary_next_byte(text, end));
HighlightEvent::Source { start, end }
}
event => event,
});
Box::new(highlights)
} }
/// Get highlight spans for document diagnostics /// Get highlight spans for document diagnostics

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