242   Handle<Object> holder = context->Lookup(name, DONT_FOLLOW_CHAINS, &index,  in DeclareLookupSlot()  local
244   if (holder.is_null()) {  in DeclareLookupSlot()
256   if (attributes != ABSENT && holder->IsJSGlobalObject()) {  in DeclareLookupSlot()
257     return DeclareGlobals(isolate, Handle<JSGlobalObject>::cast(holder), name,  in DeclareLookupSlot()
284       DCHECK(holder.is_identical_to(context));  in DeclareLookupSlot()
289     object = Handle<JSObject>::cast(holder);  in DeclareLookupSlot()
350   Handle<Object> holder =  in RUNTIME_FUNCTION()  local
352   if (holder.is_null()) {  in RUNTIME_FUNCTION()
358     DCHECK(holder->IsContext());  in RUNTIME_FUNCTION()
361     Handle<Context> context = Handle<Context>::cast(holder);  in RUNTIME_FUNCTION()
378       holder = handle(declaration_context->global_object(), isolate);  in RUNTIME_FUNCTION()
380       holder = handle(declaration_context->extension_object(), isolate);  in RUNTIME_FUNCTION()
381       DCHECK(!holder.is_null());  in RUNTIME_FUNCTION()
383     CHECK(holder->IsJSObject());  in RUNTIME_FUNCTION()
389     DCHECK(holder->IsJSGlobalObject() || holder->IsJSContextExtensionObject());  in RUNTIME_FUNCTION()
391     LookupIterator it(holder, name, LookupIterator::HIDDEN_SKIP_INTERCEPTOR);  in RUNTIME_FUNCTION()
408                    Handle<JSObject>::cast(holder), name, value, attr));  in RUNTIME_FUNCTION()
969   Handle<Object> holder =  in RUNTIME_FUNCTION()  local
973   if (holder.is_null()) {  in RUNTIME_FUNCTION()
980   if (holder->IsContext()) {  in RUNTIME_FUNCTION()
987   Handle<JSReceiver> object = Handle<JSReceiver>::cast(holder);  in RUNTIME_FUNCTION()
994 static Object* ComputeReceiverForNonGlobal(Isolate* isolate, JSObject* holder) {  in ComputeReceiverForNonGlobal()  argument
995   DCHECK(!holder->IsJSGlobalObject());  in ComputeReceiverForNonGlobal()
1001   if (holder->map()->instance_type() != JS_CONTEXT_EXTENSION_OBJECT_TYPE) {  in ComputeReceiverForNonGlobal()
1002     return holder;  in ComputeReceiverForNonGlobal()
1026   Handle<Object> holder =  in LoadLookupSlotHelper()  local
1033     DCHECK(holder->IsContext());  in LoadLookupSlotHelper()
1037     Object* value = Context::cast(*holder)->get(index);  in LoadLookupSlotHelper()
1069   if (!holder.is_null()) {  in LoadLookupSlotHelper()
1070     Handle<JSReceiver> object = Handle<JSReceiver>::cast(holder);  in LoadLookupSlotHelper()
1126   Handle<Object> holder =  in RUNTIME_FUNCTION()  local
1128   if (holder.is_null()) {  in RUNTIME_FUNCTION()
1137         Handle<Context>::cast(holder)->is_the_hole(index)) {  in RUNTIME_FUNCTION()
1142       Handle<Context>::cast(holder)->set(index, *value);  in RUNTIME_FUNCTION()
1157     object = Handle<JSReceiver>::cast(holder);  in RUNTIME_FUNCTION()