From 99bc429f3f18743963a484152ff4067f9c610156 Mon Sep 17 00:00:00 2001
From: Idan Horowitz <idan.horowitz@gmail.com>
Date: Fri, 24 Sep 2021 01:39:34 +0300
Subject: [PATCH] LibJS: Add missing exception checks to {Array,
 TypedArray}.from()

---
 Userland/Libraries/LibJS/Runtime/ArrayConstructor.cpp      | 2 ++
 Userland/Libraries/LibJS/Runtime/TypedArrayConstructor.cpp | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/Userland/Libraries/LibJS/Runtime/ArrayConstructor.cpp b/Userland/Libraries/LibJS/Runtime/ArrayConstructor.cpp
index 2e92962e1a..22359d9bd1 100644
--- a/Userland/Libraries/LibJS/Runtime/ArrayConstructor.cpp
+++ b/Userland/Libraries/LibJS/Runtime/ArrayConstructor.cpp
@@ -189,6 +189,8 @@ JS_DEFINE_NATIVE_FUNCTION(ArrayConstructor::from)
 
     for (size_t k = 0; k < length; ++k) {
         auto k_value = array_like->get(k);
+        if (vm.exception())
+            return {};
         Value mapped_value;
         if (map_fn)
             mapped_value = TRY_OR_DISCARD(vm.call(*map_fn, this_arg, k_value, Value(k)));
diff --git a/Userland/Libraries/LibJS/Runtime/TypedArrayConstructor.cpp b/Userland/Libraries/LibJS/Runtime/TypedArrayConstructor.cpp
index c6b5b13f0b..c39425548b 100644
--- a/Userland/Libraries/LibJS/Runtime/TypedArrayConstructor.cpp
+++ b/Userland/Libraries/LibJS/Runtime/TypedArrayConstructor.cpp
@@ -115,6 +115,8 @@ JS_DEFINE_NATIVE_FUNCTION(TypedArrayConstructor::from)
 
     for (size_t k = 0; k < length; ++k) {
         auto k_value = array_like->get(k);
+        if (vm.exception())
+            return {};
         Value mapped_value;
         if (map_fn)
             mapped_value = TRY_OR_DISCARD(vm.call(*map_fn, this_arg, k_value, Value(k)));