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Avoid diffing when the length is too small

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This commit is contained in:
Antonio Scandurra 2023-08-21 15:53:43 +02:00
parent 42f02eb4e7
commit 5b9d48d723
1 changed files with 6 additions and 2 deletions
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8
crates/ai/src/refactor.rs
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@ -80,13 +80,17 @@ impl RefactoringAssistant {
let mut last_old_word_end_ix = 0;
'outer: loop {
const MIN_DIFF_LEN: usize = 50;
let start = new_word_search_start_ix;
let mut words = words(&new_text[start..]);
while let Some((range, new_word)) = words.next() {
// We found a word in the new text that was unique in the old text. We can use
// it as a diff boundary, and start applying edits.
if let Some(old_word_end_ix) = unique_old_words.remove(new_word) {
if old_word_end_ix > last_old_word_end_ix {
if let Some(old_word_end_ix) = unique_old_words.get(new_word).copied() {
if old_word_end_ix.saturating_sub(last_old_word_end_ix)
> MIN_DIFF_LEN
{
drop(words);
let remainder = new_text.split_off(start + range.end);