From cea7d9b227feb6a1d8d0d7ae2a49b7f291ec61d7 Mon Sep 17 00:00:00 2001
From: zhuoli72 <pengzhuoli@huawei.com>
Date: Sat, 30 Jul 2022 14:25:30 +0800
Subject: [PATCH] Fix local variable propagation to avoid false replacement of
 param variable

Issue: I5JPW2

Signed-off-by: zhuoli72 <pengzhuoli@huawei.com>
Change-Id: Ic638f5fd13f8247b12bf75c05fffaceeb1cb3812
---
 es2panda/binder/scope.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/es2panda/binder/scope.h b/es2panda/binder/scope.h
index 7b95f5c062..2df4f08451 100644
--- a/es2panda/binder/scope.h
+++ b/es2panda/binder/scope.h
@@ -759,7 +759,9 @@ void Scope::PropagateBinding(ArenaAllocator *allocator, util::StringView name, A
         return;
     }
 
-    res->second->Reset(std::forward<Args>(args)...);
+    if (!res->second->Declaration()->IsParameterDecl()) {
+        res->second->Reset(std::forward<Args>(args)...);
+    }
 }
 
 }  // namespace panda::es2panda::binder
-- 
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