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fix: yspan slice bug

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This commit is contained in:
Zixuan Chen 2022-10-12 18:33:00 +08:00
parent a7ce6ddfd6
commit 8406b182ae
1 changed files with 12 additions and 25 deletions
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37
crates/loro-core/src/container/text/tracker/y_span.rs
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@ -115,32 +115,19 @@ impl Sliceable for YSpan {
return self.clone();
}
if from == 0 {
YSpan {
origin_left: self.origin_left,
origin_right: Some(self.id.inc(to as i32)),
id: self.id,
len: to - from,
status: self.status.clone(),
}
} else if to < self.content_len() {
YSpan {
origin_left: Some(self.id.inc(from as i32 - 1)),
origin_right: Some(self.id.inc(to as i32)),
id: self.id.inc(from as i32),
len: to - from,
status: self.status.clone(),
}
} else if to == self.content_len() {
YSpan {
origin_left: Some(self.id.inc(from as i32 - 1)),
origin_right: self.origin_right,
id: self.id.inc(from as i32),
len: to - from,
status: self.status.clone(),
}
let origin_left = if from == 0 {
self.origin_left
} else {
unreachable!("`to` is greater than content_len")
Some(self.id.inc(from as i32 - 1))
};
let origin_right = self.origin_right;
YSpan {
origin_left,
origin_right,
id: self.id.inc(from as i32),
len: to - from,
status: self.status.clone(),
}
}
}