From c782d9a8ab368fd7cf7b93461f42a295e06aabe5 Mon Sep 17 00:00:00 2001
From: mehmetyavuzz43 <147098445+mehmetyavuzz43@users.noreply.github.com>
Date: Sat, 31 Jan 2026 16:11:08 +0100
Subject: [PATCH] Create assertDefined.ts

Added a small assert helper that improves safety and type narrowing without extra boilerplate.
---
 packages/utils/src/assertDefined.ts | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 packages/utils/src/assertDefined.ts

diff --git a/packages/utils/src/assertDefined.ts b/packages/utils/src/assertDefined.ts
new file mode 100644
index 00000000000..0f2146afbfc
--- /dev/null
+++ b/packages/utils/src/assertDefined.ts
@@ -0,0 +1,8 @@
+export function assertDefined<T>(
+  value: T,
+  message = 'Expected value to be defined',
+): asserts value is NonNullable<T> {
+  if (value === undefined || value === null) {
+    throw new Error(message);
+  }
+}