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language: Track buffer dirty state based on edits, not on file contents

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This commit is contained in:
Piotr Osiewicz 2024-03-07 13:55:26 +01:00
parent 4c9c9df730
commit d450fde1ed
1 changed files with 20 additions and 3 deletions
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23
crates/language/src/buffer.rs
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@ -110,6 +110,7 @@ pub struct Buffer {
completion_triggers_timestamp: clock::Lamport,
deferred_ops: OperationQueue<Operation>,
capability: Capability,
has_conflict: bool,
}
/// An immutable, cheaply cloneable representation of a fixed
@ -698,6 +699,7 @@ impl Buffer {
completion_triggers: Default::default(),
completion_triggers_timestamp: Default::default(),
deferred_ops: OperationQueue::new(),
has_conflict: false,
}
}
@ -788,6 +790,7 @@ impl Buffer {
cx: &mut ModelContext<Self>,
) {
self.saved_version = version;
self.has_conflict = false;
self.file_fingerprint = fingerprint;
self.saved_mtime = mtime;
cx.emit(Event::Saved);
@ -819,7 +822,7 @@ impl Buffer {
this.finalize_last_transaction();
this.apply_diff(diff, cx);
tx.send(this.finalize_last_transaction().cloned()).ok();
this.has_conflict = false;
this.did_reload(
this.version(),
this.as_rope().fingerprint(),
@ -828,6 +831,15 @@ impl Buffer {
cx,
);
} else {
if !diff.edits.is_empty()
|| this
.edits_since::<usize>(&diff.base_version)
.next()
.is_some()
{
this.has_conflict = true;
}
this.did_reload(
prev_version,
Rope::text_fingerprint(&new_text),
@ -1518,16 +1530,21 @@ impl Buffer {
self.end_transaction(cx)
}
fn changed_since_saved_version(&self) -> bool {
self.edits_since::<usize>(&self.saved_version)
.next()
.is_some()
}
/// Checks if the buffer has unsaved changes.
pub fn is_dirty(&self) -> bool {
self.file_fingerprint != self.as_rope().fingerprint()
(self.has_conflict || self.changed_since_saved_version())
|| self.file.as_ref().map_or(false, |file| file.is_deleted())
}
/// Checks if the buffer and its file have both changed since the buffer
/// was last saved or reloaded.
pub fn has_conflict(&self) -> bool {
self.file_fingerprint != self.as_rope().fingerprint()
(self.has_conflict || self.changed_since_saved_version())
&& self
.file
.as_ref()