From 8539513b94073eaf54e5e89620c571352d009fd0 Mon Sep 17 00:00:00 2001
From: Alexey Shvayka <shvaikalesh@gmail.com>
Date: Thu, 25 Feb 2021 03:17:13 +0200
Subject: [PATCH] Normative: Guard IntegerIndexedElementSet with receiver check

---
 spec.html | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/spec.html b/spec.html
index 542207d7f5f..9bdd600dc92 100644
--- a/spec.html
+++ b/spec.html
@@ -11785,8 +11785,10 @@ <h1>[[Set]] ( _P_, _V_, _Receiver_ )</h1>
           1. If Type(_P_) is String, then
             1. Let _numericIndex_ be ! CanonicalNumericIndexString(_P_).
             1. If _numericIndex_ is not *undefined*, then
-              1. Perform ? IntegerIndexedElementSet(_O_, _numericIndex_, _V_).
-              1. Return *true*.
+              1. If ! SameValue(_O_, _Receiver_) is *true*, then
+                1. Perform ? IntegerIndexedElementSet(_O_, _numericIndex_, _V_).
+                1. Return *true*.
+              1. If ! IsValidIntegerIndex(_O_, _numericIndex_) is *false*, return *true*.
           1. Return ? OrdinarySet(_O_, _P_, _V_, _Receiver_).
         </emu-alg>
       </emu-clause>