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Introduce text::Buffer::subscribe

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Co-Authored-By: Nathan Sobo <nathan@zed.dev>
This commit is contained in:
Antonio Scandurra 2021-12-01 15:55:05 +01:00
parent 47c467dafc
commit 3b536f153f
7 changed files with 159 additions and 73 deletions
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36
crates/text/src/tests.rs
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@ -8,6 +8,13 @@ use std::{
time::{Duration, Instant},
};
#[cfg(test)]
#[ctor::ctor]
fn init_logger() {
// std::env::set_var("RUST_LOG", "info");
env_logger::init();
}
#[test]
fn test_edit() {
let mut buffer = Buffer::new(0, 0, History::new("abc".into()));
@ -72,30 +79,43 @@ fn test_random_edits(mut rng: StdRng) {
);
if rng.gen_bool(0.3) {
buffer_versions.push(buffer.clone());
buffer_versions.push((buffer.clone(), buffer.subscribe()));
}
}
for mut old_buffer in buffer_versions {
for (old_buffer, subscription) in buffer_versions {
let edits = buffer
.edits_since::<usize>(&old_buffer.version)
.collect::<Vec<_>>();
log::info!(
"mutating old buffer version {:?}, text: {:?}, edits since: {:?}",
"applying edits since version {:?} to old text: {:?}: {:?}",
old_buffer.version(),
old_buffer.text(),
edits,
);
let mut text = old_buffer.visible_text.clone();
for edit in edits {
let new_text: String = buffer.text_for_range(edit.new.clone()).collect();
old_buffer.edit(
Some(edit.new.start..edit.new.start + edit.old.len()),
new_text,
);
text.replace(edit.new.start..edit.new.start + edit.old.len(), &new_text);
}
assert_eq!(old_buffer.text(), buffer.text());
assert_eq!(text.to_string(), buffer.text());
let subscription_edits = subscription.consume();
log::info!(
"applying subscription edits since version {:?} to old text: {:?}: {:?}",
old_buffer.version(),
old_buffer.text(),
subscription_edits,
);
let mut text = old_buffer.visible_text.clone();
for edit in subscription_edits.into_inner() {
let new_text: String = buffer.text_for_range(edit.new.clone()).collect();
text.replace(edit.new.start..edit.new.start + edit.old.len(), &new_text);
}
assert_eq!(text.to_string(), buffer.text());
}
}