From 2bb12ac02f8a0f766f6a38d4f3704eaebe58d402 Mon Sep 17 00:00:00 2001
From: "Bouguima, Walid" <walid.bouguima@hilti.com>
Date: Wed, 15 May 2024 16:26:56 +0200
Subject: [PATCH] fix(compiler): prevent usage of reserved control flow symbol
 in custom interpolation context. (#55809)

* Fixes the issue where using a reserved control flow @ symbol in a custom interpolation context yields improper parser feedback.

PR Close #55809
---
 packages/compiler/src/assertions.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/compiler/src/assertions.ts b/packages/compiler/src/assertions.ts
index 283f21d9ad7..04799720e6b 100644
--- a/packages/compiler/src/assertions.ts
+++ b/packages/compiler/src/assertions.ts
@@ -7,6 +7,7 @@
  */
 
 const UNUSABLE_INTERPOLATION_REGEXPS = [
+  /@/, // control flow reserved symbol
   /^\s*$/, // empty
   /[<>]/, // html tag
   /^[{}]$/, // i18n expansion