Fix a crash in an anonymous buffer that copilot is writing to. (micro…

…soft#60377)
iisaduan · Oct 30, 2024 · da15ef2 · da15ef2
1 parent 2161893
commit da15ef2
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/server/scriptVersionCache.ts b/src/server/scriptVersionCache.ts
@@ -632,6 +632,7 @@ export class LineNode implements LineCollection {
 
     walk(rangeStart: number, rangeLength: number, walkFns: LineIndexWalker): void {
         // assume (rangeStart < this.totalChars) && (rangeLength <= this.totalChars)
+        if (this.children.length === 0) return;
         let childIndex = 0;
         let childCharCount = this.children[childIndex].charCount();
         // find sub-tree containing start