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Allow edits at the end of MultiBuffer

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Co-Authored-By: Nathan Sobo <nathan@zed.dev>
This commit is contained in:
Antonio Scandurra 2021-12-15 16:45:01 +01:00
parent 7bbaa1d930
commit bcdb4ffd88
2 changed files with 7 additions and 1 deletions
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2
crates/editor/src/display_map/fold_map.rs
View file

@ -1254,7 +1254,7 @@ mod tests {
let buffer = if rng.gen() {
MultiBuffer::build_simple(&text, cx)
} else {
MultiBuffer::build_random(1, &mut rng, cx)
MultiBuffer::build_random(rng.gen_range(1..=5), &mut rng, cx)
};
let mut buffer_snapshot = buffer.read(cx).snapshot(cx);
let mut map = FoldMap::new(buffer_snapshot.clone()).0;

6
crates/editor/src/multi_buffer.rs
View file

@ -305,6 +305,9 @@ impl MultiBuffer {
let start = range.start.to_offset(&snapshot);
let end = range.end.to_offset(&snapshot);
cursor.seek(&start, Bias::Right, &());
if cursor.item().is_none() && start == *cursor.start() {
cursor.prev(&());
}
let start_excerpt = cursor.item().expect("start offset out of bounds");
let start_overshoot =
(start - cursor.start()).saturating_sub(start_excerpt.header_height as usize);
@ -312,6 +315,9 @@ impl MultiBuffer {
start_excerpt.range.start.to_offset(&start_excerpt.buffer) + start_overshoot;
cursor.seek(&end, Bias::Right, &());
if cursor.item().is_none() && end == *cursor.start() {
cursor.prev(&());
}
let end_excerpt = cursor.item().expect("end offset out of bounds");
let end_overshoot =
(end - cursor.start()).saturating_sub(end_excerpt.header_height as usize);