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use saturating substraction to calculate Line ranges

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This commit is contained in:
Diva M
2021-10-09 06:08:07 -05:00
committed by David Peter
parent aed4ea144f
commit ce4ddc0911
1 changed files with 2 additions and 1 deletions

3
src/controller.rs

@ -177,7 +177,8 @@ impl<'b> Controller<'b> {
if let Some(line_changes) = line_changes { if let Some(line_changes) = line_changes {
for &line in line_changes.keys() { for &line in line_changes.keys() {
let line = line as usize; let line = line as usize;
line_ranges.push(LineRange::new(line - context, line + context)); line_ranges
.push(LineRange::new(line.saturating_sub(context), line + context));
} }
} }