chore: improve slice logic to handle edge cases

hashemix · hashemix · commit 9a19df77746d · 2025-05-29T18:17:23.000-03:00
diff --git a/src/fs_service.rs b/src/fs_service.rs
@@ -525,7 +525,8 @@ impl FileSystemService {
                     .into());
             }
 
-            for i in 0..=content_lines.len() - old_lines.len() {
+            let max_start = content_lines.len().saturating_sub(old_lines.len());
+            for i in 0..=max_start {
                 let potential_match = &content_lines[i..i + old_lines.len()];
 
                 // Compare lines with normalized whitespace

Original file line number	Diff line number	Diff line change
`@@ -525,7 +525,8 @@ impl FileSystemService {`
`525`	`525`	`.into());`
`526`	`526`	`}`
`527`	`527`
`528`		`- for i in 0..=content_lines.len() - old_lines.len() {`
	`528`	`+ let max_start = content_lines.len().saturating_sub(old_lines.len());`
	`529`	`+ for i in 0..=max_start {`
`529`	`530`	`let potential_match = &content_lines[i..i + old_lines.len()];`
`530`	`531`
`531`	`532`	`// Compare lines with normalized whitespace`