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Introduce Buffer::edits_since_in_range

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Co-Authored-By: Nathan Sobo <nathan@zed.dev>
Co-Authored-By: Max Brunsfeld <max@zed.dev>
This commit is contained in:
Antonio Scandurra 2021-12-06 19:48:45 +01:00
parent e37908cf3b
commit 42eba7268d
4 changed files with 135 additions and 22 deletions
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26
crates/text/src/tests.rs
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@ -102,6 +102,32 @@ fn test_random_edits(mut rng: StdRng) {
}
assert_eq!(text.to_string(), buffer.text());
for _ in 0..5 {
let end_ix = old_buffer.clip_offset(rng.gen_range(0..=old_buffer.len()), Bias::Right);
let start_ix = old_buffer.clip_offset(rng.gen_range(0..=end_ix), Bias::Left);
let range = old_buffer.anchor_before(start_ix)..old_buffer.anchor_after(end_ix);
let mut old_text = old_buffer.text_for_range(range.clone()).collect::<String>();
let edits = buffer
.edits_since_in_range::<usize>(&old_buffer.version, range.clone())
.collect::<Vec<_>>();
log::info!(
"applying edits since version {:?} to old text in range {:?}: {:?}: {:?}",
old_buffer.version(),
start_ix..end_ix,
old_text,
edits,
);
let new_text = buffer.text_for_range(range).collect::<String>();
for edit in edits {
old_text.replace_range(
edit.new.start..edit.new.start + edit.old_len(),
&new_text[edit.new],
);
}
assert_eq!(old_text, new_text);
}
let subscription_edits = subscription.consume();
log::info!(
"applying subscription edits since version {:?} to old text: {:?}: {:?}",