From 6aba9b8a24d86df40710ccbf16e208978f64374a Mon Sep 17 00:00:00 2001
From: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>
Date: Mon, 13 Feb 2023 13:50:57 -0800
Subject: [PATCH] Drop `deferredNodes` after checking them all. (#52606)

---
 src/compiler/checker.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 334298f129e..7fc3279b0ad 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -44398,6 +44398,9 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
             links.deferredNodes ||= new Set();
             links.deferredNodes.add(node);
         }
+        else {
+            Debug.assert(!links.deferredNodes, "A type-checked file should have no deferred nodes.");
+        }
     }
 
     function checkDeferredNodes(context: SourceFile) {
@@ -44405,6 +44408,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
         if (links.deferredNodes) {
             links.deferredNodes.forEach(checkDeferredNode);
         }
+        links.deferredNodes = undefined;
     }
 
     function checkDeferredNode(node: Node) {