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chore: cherry-pick f320600cd1f4 from v8 #42122

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May 13, 2024
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1 change: 1 addition & 0 deletions patches/v8/.patches
Original file line number Diff line number Diff line change
@@ -1,2 +1,3 @@
chore_allow_customizing_microtask_policy_per_context.patch
deps_add_v8_object_setinternalfieldfornodecore.patch
cherry-pick-f320600cd1f4.patch
27 changes: 27 additions & 0 deletions patches/v8/cherry-pick-f320600cd1f4.patch
Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shu-yu Guo <syg@chromium.org>
Date: Thu, 9 May 2024 12:03:28 -0700
Subject: Only normalize JSObject targets in SetOrCopyDataProperties

Bug: 339458194
Change-Id: I4d6eebdd921971fa28d7c474535d978900ba633f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5527397
Reviewed-by: Rezvan Mahdavi Hezaveh <rezvan@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#93811}

diff --git a/src/objects/js-objects.cc b/src/objects/js-objects.cc
index e5a03dff14835e98a53ff7a40c5c60b362c4afec..2f3ab484cdc010915c57cd6112c4330c4ed69c6c 100644
--- a/src/objects/js-objects.cc
+++ b/src/objects/js-objects.cc
@@ -432,9 +432,7 @@ Maybe<bool> JSReceiver::SetOrCopyDataProperties(
Nothing<bool>());

if (!from->HasFastProperties() && target->HasFastProperties() &&
- !IsJSGlobalProxy(*target)) {
- // JSProxy is always in slow-mode.
- DCHECK(!IsJSProxy(*target));
+ IsJSObject(*target) && !IsJSGlobalProxy(*target)) {
// Convert to slow properties if we're guaranteed to overflow the number of
// descriptors.
int source_length;