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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