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// Copyright 2019 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. namespace runtime { extern runtime ArrayIsArray(implicit context: Context)(JSAny): JSAny; } // namespace runtime namespace array { // ES #sec-array.isarray javascript builtin ArrayIsArray( js-implicit context: NativeContext)(arg: JSAny): JSAny { // 1. Return ? IsArray(arg). typeswitch (arg) { case (JSArray): { return True; } case (JSProxy): { // TODO(verwaest): Handle proxies in-place return runtime::ArrayIsArray(arg); } case (JSAny): { return False; } } } } // namespace array