1 files changed, 19 insertions, 0 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/runtime/ObjectPrototype.cpp b/src/3rdparty/javascriptcore/JavaScriptCore/runtime/ObjectPrototype.cpp
index 98e4713188..fccc44a597 100644
--- a/src/3rdparty/javascriptcore/JavaScriptCore/runtime/ObjectPrototype.cpp
+++ b/src/3rdparty/javascriptcore/JavaScriptCore/runtime/ObjectPrototype.cpp
@@ -42,6 +42,7 @@ static JSValue JSC_HOST_CALL objectProtoFuncToLocaleString(ExecState*, JSObject*
 
 ObjectPrototype::ObjectPrototype(ExecState* exec, PassRefPtr<Structure> stucture, Structure* prototypeFunctionStructure)
     : JSObject(stucture)
+    , m_hasNoPropertiesWithUInt32Names(true)
 {
     putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 0, exec->propertyNames().toString, objectProtoFuncToString), DontEnum);
     putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 0, exec->propertyNames().toLocaleString, objectProtoFuncToLocaleString), DontEnum);
@@ -57,6 +58,24 @@ ObjectPrototype::ObjectPrototype(ExecState* exec, PassRefPtr<Structure> stucture
     putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 1, exec->propertyNames().__lookupSetter__, objectProtoFuncLookupSetter), DontEnum);
 }
 
+void ObjectPrototype::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
+{
+    JSObject::put(exec, propertyName, value, slot);
+
+    if (m_hasNoPropertiesWithUInt32Names) {
+        bool isUInt32;
+        propertyName.toStrictUInt32(&isUInt32);
+        m_hasNoPropertiesWithUInt32Names = !isUInt32;
+    }
+}
+
+bool ObjectPrototype::getOwnPropertySlot(ExecState* exec, unsigned propertyName, PropertySlot& slot)
+{
+    if (m_hasNoPropertiesWithUInt32Names)
+        return false;
+    return JSObject::getOwnPropertySlot(exec, propertyName, slot);
+}
+
 // ------------------------------ Functions --------------------------------
 
 // ECMA 15.2.4.2, 15.2.4.4, 15.2.4.5, 15.2.4.7