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chore: add brainstorm thoughts

pull/12759/head
Nikita Revenco 2025-02-02 19:05:56 +00:00 committed by Nik Revenco
parent 13b52e9d97
commit ee0f22471e
1 changed files with 27 additions and 3 deletions
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30
helix-term/src/commands.rs
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@ -5136,18 +5136,42 @@ fn toggle_comments_impl<'a>(
let mut best_fit = None;
let mut min_gap = usize::MAX;
// Find the injection with the most tightly encompassing
// range.
//
// TODO: improve performance of this
//
// I'm thinking layer.ranges can be a
// BTreeSet<Range> instead of Vec<Range>
//
// The "Cmp" implementation can basically be
// range.start_byte.cmp(other.start_byte)
// .then(range.end_byte.cmp(other.end_byte))
//
// Since we can't implement Cmp for Range (external trate and struct)
// we need to use newtype pattern: struct TSRange(Range)
// But I tried that and I'm not sure it'll work
//
// I *could* just use the same Vec, and when we're inserting into it
// we'll do it in the correct order. Then do Vec::binary_search_by
//
// However, I don't know if that'll be a good idea.
if let Some(syntax) = &syntax {
for (layer_id, layer) in &syntax.layers {
for ts_range in &layer.ranges {
// let (start, end) = range.into_byte_range(rope);
let is_encompassing =
ts_range.start_byte <= start && ts_range.end_byte >= end;
if is_encompassing {
let this_gap = ts_range.end_byte - ts_range.start_byte;
if this_gap < min_gap
// ignore the "comment" language
&& syntax.layer_config(layer_id).language_name != "comment"
// ignore the "comment" language family
// as that would mean we can't uncomment anything, or
// the comments would be incorrect.
//
// Since uncommenting would attempt to use the comment
// language's non-existing comment tokens
// TODO: add this as a language configuration key?
&& !matches!(syntax.layer_config(layer_id).language_name.as_ref(), "jsdoc" | "comment")
{
best_fit = Some(layer_id);
min_gap = this_gap;