From 642060db6f64f8e6c2f7f09dd962c07ad2be6db3 Mon Sep 17 00:00:00 2001
From: Armando Aguirre <armanio123@gmail.com>
Date: Mon, 2 Aug 2021 15:26:48 -0700
Subject: [PATCH] Replace non-null assertion with optional chain on assert
 nodes (#43788)

---
 src/compiler/debug.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/compiler/debug.ts b/src/compiler/debug.ts
index fc7b1aa4cdb..2e6b87a30e6 100644
--- a/src/compiler/debug.ts
+++ b/src/compiler/debug.ts
@@ -221,7 +221,7 @@ namespace ts {
                 assert(
                     node !== undefined && (test === undefined || test(node)),
                     message || "Unexpected node.",
-                    () => `Node ${formatSyntaxKind(node!.kind)} did not pass test '${getFunctionName(test!)}'.`,
+                    () => `Node ${formatSyntaxKind(node?.kind)} did not pass test '${getFunctionName(test!)}'.`,
                     stackCrawlMark || assertNode);
             }
         }
@@ -246,7 +246,7 @@ namespace ts {
                 assert(
                     test === undefined || node === undefined || test(node),
                     message || "Unexpected node.",
-                    () => `Node ${formatSyntaxKind(node!.kind)} did not pass test '${getFunctionName(test!)}'.`,
+                    () => `Node ${formatSyntaxKind(node?.kind)} did not pass test '${getFunctionName(test!)}'.`,
                     stackCrawlMark || assertOptionalNode);
             }
         }
@@ -259,7 +259,7 @@ namespace ts {
                 assert(
                     kind === undefined || node === undefined || node.kind === kind,
                     message || "Unexpected node.",
-                    () => `Node ${formatSyntaxKind(node!.kind)} was not a '${formatSyntaxKind(kind)}' token.`,
+                    () => `Node ${formatSyntaxKind(node?.kind)} was not a '${formatSyntaxKind(kind)}' token.`,
                     stackCrawlMark || assertOptionalToken);
             }
         }