1  /*
 2   * Copyright (C) 2019 Apple Inc. All rights reserved.
 3   *
 4   * Redistribution and use in source and binary forms, with or without
 5   * modification, are permitted provided that the following conditions
 6   * are met:
 7   * 1. Redistributions of source code must retain the above copyright
 8   *    notice, this list of conditions and the following disclaimer.
 9   * 2. Redistributions in binary form must reproduce the above copyright
10   *    notice, this list of conditions and the following disclaimer in the
11   *    documentation and/or other materials provided with the distribution.
12   *
13   * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23   * THE POSSIBILITY OF SUCH DAMAGE.
24   */
25  
26  #include "config.h"
27  #include "JSGenerator.h"
28  
29  #include "JSCInlines.h"
30  #include "JSInternalFieldObjectImplInlines.h"
31  
32  namespace JSC {
33  
34  const ClassInfo JSGenerator::s_info = { "Generator", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSGenerator) };
35  
36  JSGenerator* JSGenerator::create(VM& vm, Structure* structure)
37  {
38      JSGenerator* generator = new (NotNull, allocateCell<JSGenerator>(vm.heap)) JSGenerator(vm, structure);
39      generator->finishCreation(vm);
40      return generator;
41  }
42  
43  Structure* JSGenerator::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
44  {
45      return Structure::create(vm, globalObject, prototype, TypeInfo(JSGeneratorType, StructureFlags), info());
46  }
47  
48  JSGenerator::JSGenerator(VM& vm, Structure* structure)
49      : Base(vm, structure)
50  {
51  }
52  
53  void JSGenerator::finishCreation(VM& vm)
54  {
55      Base::finishCreation(vm);
56      auto values = initialValues();
57      ASSERT(values.size() == numberOfInternalFields);
58      for (unsigned index = 0; index < values.size(); ++index)
59          internalField(index).set(vm, this, values[index]);
60  }
61  
62  void JSGenerator::visitChildren(JSCell* cell, SlotVisitor& visitor)
63  {
64      auto* thisObject = jsCast<JSGenerator*>(cell);
65      ASSERT_GC_OBJECT_INHERITS(thisObject, info());
66      Base::visitChildren(thisObject, visitor);
67  }
68  
69  } // namespace JSC