1  /*
 2   * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
 3   * Copyright (C) 2016 Apple Inc. All rights reserved.
 4   *
 5   * Redistribution and use in source and binary forms, with or without
 6   * modification, are permitted provided that the following conditions
 7   * are met:
 8   * 1. Redistributions of source code must retain the above copyright
 9   *    notice, this list of conditions and the following disclaimer.
10   * 2. Redistributions in binary form must reproduce the above copyright
11   *    notice, this list of conditions and the following disclaimer in the
12   *    documentation and/or other materials provided with the distribution.
13   *
14   * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
15   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
18   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22   * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25   */
26  
27  #include "config.h"
28  #include "JSStringIterator.h"
29  
30  #include "JSCInlines.h"
31  #include "JSInternalFieldObjectImplInlines.h"
32  
33  namespace JSC {
34  
35  const ClassInfo JSStringIterator::s_info = { "String Iterator", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSStringIterator) };
36  
37  void JSStringIterator::finishCreation(VM& vm, JSString* iteratedString)
38  {
39      Base::finishCreation(vm);
40      ASSERT(inherits(vm, info()));
41      internalField(Field::Index).set(vm, this, jsNumber(0));
42      internalField(Field::IteratedString).set(vm, this, iteratedString);
43  }
44  
45  JSStringIterator* JSStringIterator::clone(JSGlobalObject* globalObject)
46  {
47      VM& vm = globalObject->vm();
48      JSString* iteratedString = jsCast<JSString*>(this->iteratedString());
49      auto* clone = JSStringIterator::create(vm, globalObject->stringIteratorStructure(), iteratedString);
50      clone->internalField(Field::Index).set(vm, clone, this->index());
51      return clone;
52  }
53  
54  void JSStringIterator::visitChildren(JSCell* cell, SlotVisitor& visitor)
55  {
56      auto* thisObject = jsCast<JSStringIterator*>(cell);
57      ASSERT_GC_OBJECT_INHERITS(thisObject, info());
58      Base::visitChildren(thisObject, visitor);
59  }
60  
61  } // namespace JSC