From 018edd5566011f3667bb74ff46ea4c1f7c470ded Mon Sep 17 00:00:00 2001
From: fisker <lionkay@gmail.com>
Date: Fri, 9 Jan 2026 07:57:01 +0800
Subject: [PATCH] refactor(compiler): switch `Binary.isAssignmentOperation` to
 type guard function

Improve `Binary.isAssignmentOperation` types

(cherry picked from commit 4fb24cadeefd3f67f77ad39be020f395ccd3e8fa)
---
 packages/compiler/src/expression_parser/ast.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/compiler/src/expression_parser/ast.ts b/packages/compiler/src/expression_parser/ast.ts
index 5958773177c..3777c8bd269 100644
--- a/packages/compiler/src/expression_parser/ast.ts
+++ b/packages/compiler/src/expression_parser/ast.ts
@@ -298,7 +298,7 @@ export class Binary extends AST {
     return visitor.visitBinary(this, context);
   }
 
-  static isAssignmentOperation(op: string): boolean {
+  static isAssignmentOperation(op: string): op is AssignmentOperation {
     return (
       op === '=' ||
       op === '+=' ||