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. ``AS IS'' AND ANY
14   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21   * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24   */
25  
26  #pragma once
27  
28  #include "RegExpCachedResult.h"
29  
30  namespace JSC {
31  
32  class JSGlobalObject;
33  
34  class RegExpGlobalData {
35  public:
36      RegExpCachedResult& cachedResult() { return m_cachedResult; }
37  
38      void setMultiline(bool multiline) { m_multiline = multiline; }
39      bool multiline() const { return m_multiline; }
40  
41      void setInput(JSGlobalObject*, JSString*);
42      JSString* input() { return m_cachedResult.input(); }
43  
44      void visitAggregate(SlotVisitor&);
45  
46      JSValue getBackref(JSGlobalObject*, unsigned);
47      JSValue getLastParen(JSGlobalObject*);
48      JSValue getLeftContext(JSGlobalObject*);
49      JSValue getRightContext(JSGlobalObject*);
50  
51      MatchResult performMatch(JSGlobalObject*, RegExp*, JSString*, const String&, int startOffset, int** ovector);
52      MatchResult performMatch(JSGlobalObject*, RegExp*, JSString*, const String&, int startOffset);
53      void recordMatch(VM&, JSGlobalObject*, RegExp*, JSString*, const MatchResult&);
54  
55      static ptrdiff_t offsetOfCachedResult() { return OBJECT_OFFSETOF(RegExpGlobalData, m_cachedResult); }
56  
57  private:
58      RegExpCachedResult m_cachedResult;
59      bool m_multiline { false };
60      Vector<int> m_ovector;
61  };
62  
63  }