1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the QtQml module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:LGPL$ |
9 | ** Commercial License Usage |
10 | ** Licensees holding valid commercial Qt licenses may use this file in |
11 | ** accordance with the commercial license agreement provided with the |
12 | ** Software or, alternatively, in accordance with the terms contained in |
13 | ** a written agreement between you and The Qt Company. For licensing terms |
14 | ** and conditions see https://www.qt.io/terms-conditions. For further |
15 | ** information use the contact form at https://www.qt.io/contact-us. |
16 | ** |
17 | ** GNU Lesser General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
19 | ** General Public License version 3 as published by the Free Software |
20 | ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
21 | ** packaging of this file. Please review the following information to |
22 | ** ensure the GNU Lesser General Public License version 3 requirements |
23 | ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
24 | ** |
25 | ** GNU General Public License Usage |
26 | ** Alternatively, this file may be used under the terms of the GNU |
27 | ** General Public License version 2.0 or (at your option) the GNU General |
28 | ** Public license version 3 or any later version approved by the KDE Free |
29 | ** Qt Foundation. The licenses are as published by the Free Software |
30 | ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
31 | ** included in the packaging of this file. Please review the following |
32 | ** information to ensure the GNU General Public License requirements will |
33 | ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
34 | ** https://www.gnu.org/licenses/gpl-3.0.html. |
35 | ** |
36 | ** $QT_END_LICENSE$ |
37 | ** |
38 | ****************************************************************************/ |
39 | #ifndef QV4IDENTIFIERTABLE_H |
40 | #define QV4IDENTIFIERTABLE_H |
41 | |
42 | // |
43 | // W A R N I N G |
44 | // ------------- |
45 | // |
46 | // This file is not part of the Qt API. It exists purely as an |
47 | // implementation detail. This header file may change from version to |
48 | // version without notice, or even be removed. |
49 | // |
50 | // We mean it. |
51 | // |
52 | |
53 | #include "qv4identifier_p.h" |
54 | #include "qv4string_p.h" |
55 | #include "qv4engine_p.h" |
56 | #include <qset.h> |
57 | #include <limits.h> |
58 | |
59 | QT_BEGIN_NAMESPACE |
60 | |
61 | namespace QV4 { |
62 | |
63 | struct Q_QML_PRIVATE_EXPORT IdentifierTable |
64 | { |
65 | ExecutionEngine *engine; |
66 | |
67 | uint alloc; |
68 | uint size; |
69 | int numBits; |
70 | Heap::StringOrSymbol **entriesByHash; |
71 | Heap::StringOrSymbol **entriesById; |
72 | |
73 | QSet<IdentifierHashData *> idHashes; |
74 | |
75 | void addEntry(Heap::StringOrSymbol *str); |
76 | |
77 | public: |
78 | |
79 | IdentifierTable(ExecutionEngine *engine, int numBits = 8); |
80 | ~IdentifierTable(); |
81 | |
82 | Heap::String *insertString(const QString &s); |
83 | Heap::Symbol *insertSymbol(const QString &s); |
84 | |
85 | PropertyKey asPropertyKey(const Heap::String *str) { |
86 | if (str->identifier.isValid()) |
87 | return str->identifier; |
88 | return asPropertyKeyImpl(str); |
89 | } |
90 | PropertyKey asPropertyKey(const QV4::String *str) { |
91 | return asPropertyKey(str: str->d()); |
92 | } |
93 | |
94 | PropertyKey asPropertyKey(const QString &s); |
95 | PropertyKey asPropertyKey(const char *s, int len); |
96 | |
97 | PropertyKey asPropertyKeyImpl(const Heap::String *str); |
98 | |
99 | Heap::StringOrSymbol *resolveId(PropertyKey i) const; |
100 | Heap::String *stringForId(PropertyKey i) const; |
101 | Heap::Symbol *symbolForId(PropertyKey i) const; |
102 | |
103 | void markObjects(MarkStack *markStack); |
104 | void sweep(); |
105 | |
106 | void addIdentifierHash(IdentifierHashData *h) { |
107 | idHashes.insert(value: h); |
108 | } |
109 | void removeIdentifierHash(IdentifierHashData *h) { |
110 | idHashes.remove(value: h); |
111 | } |
112 | }; |
113 | |
114 | } |
115 | |
116 | QT_END_NAMESPACE |
117 | |
118 | #endif |
119 | |