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// Copyright 2017 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.
#include "src/builtins/builtins-promise.h"
#include "src/builtins/builtins-utils-inl.h"
#include "src/builtins/builtins.h"
#include "src/heap/heap-inl.h" // For ToBoolean. TODO(jkummerow): Drop.
#include "src/logging/counters.h"
#include "src/objects/objects-inl.h"
namespace v8 {
namespace internal {
BUILTIN(IsPromise) {
SealHandleScope scope(isolate);
Handle<Object> object = args.atOrUndefined(isolate, 1);
return isolate->heap()->ToBoolean(object->IsJSPromise());
}
} // namespace internal
} // namespace v8