From 772c29072e304d28ca7b93c4dc0a7a88ba44938b Mon Sep 17 00:00:00 2001
From: Jake Bailey <5341706+jakebailey@users.noreply.github.com>
Date: Thu, 4 Apr 2024 07:50:10 -0700
Subject: [PATCH] Don't clear _children on NodeArrays (#58069)

---
 src/compiler/parser.ts | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index ca4bb9ed612..3afd9a5ed61 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -10022,7 +10022,6 @@ namespace IncrementalParser {
         }
 
         function visitArray(array: IncrementalNodeArray) {
-            array._children = undefined;
             setTextRangePosEnd(array, array.pos + delta, array.end + delta);
 
             for (const node of array) {
@@ -10194,7 +10193,6 @@ namespace IncrementalParser {
             const fullEnd = array.end;
             if (fullEnd >= changeStart) {
                 array.intersectsChange = true;
-                array._children = undefined;
 
                 // Adjust the pos or end (or both) of the intersecting array accordingly.
                 adjustIntersectingElement(array, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta);
@@ -10347,11 +10345,11 @@ namespace IncrementalParser {
         readonly parent: Node;
         intersectsChange: boolean;
         length?: number;
-        _children: Node[] | undefined;
     }
 
     export interface IncrementalNode extends Node, IncrementalElement {
         hasBeenIncrementallyParsed: boolean;
+        _children: Node[] | undefined;
     }
 
     interface IncrementalNodeArray extends NodeArray<IncrementalNode>, IncrementalElement {