1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QV4COMPILER_P_H
#define QV4COMPILER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qstring.h>
#include <QtCore/qhash.h>
#include <QtCore/qstringlist.h>
#include <private/qv4compilerglobal_p.h>
#include <private/qqmljsastfwd_p.h>
#include <private/qv4compileddata_p.h>
#include <private/qv4staticvalue_p.h>
QT_BEGIN_NAMESPACE
class QQmlPropertyData;
namespace QV4 {
namespace CompiledData {
struct Unit;
struct Lookup;
struct RegExp;
struct JSClassMember;
}
namespace Compiler {
struct Context;
struct Module;
struct Class;
struct TemplateObject;
struct Q_QML_COMPILER_EXPORT StringTableGenerator {
StringTableGenerator();
int registerString(const QString &str);
int getStringId(const QString &string) const;
QString stringForIndex(int index) const { return strings.at(index); }
uint stringCount() const { return strings.size() - backingUnitTableSize; }
uint sizeOfTableAndData() const { return stringDataSize + ((stringCount() * sizeof(uint) + 7) & ~7); }
void freeze() { frozen = true; }
void clear();
void initializeFromBackingUnit(const CompiledData::Unit *unit);
void serialize(CompiledData::Unit *unit);
QStringList allStrings() const { return strings.mid(backingUnitTableSize); }
private:
QHash<QString, int> stringToId;
QStringList strings;
uint stringDataSize;
uint backingUnitTableSize = 0;
bool frozen = false;
};
struct Q_QML_COMPILER_EXPORT JSUnitGenerator {
enum LookupMode { LookupForStorage, LookupForCall };
static void generateUnitChecksum(CompiledData::Unit *unit);
struct MemberInfo {
QString name;
bool isAccessor;
};
JSUnitGenerator(Module *module);
int registerString(const QString &str) { return stringTable.registerString(str); }
int getStringId(const QString &string) const { return stringTable.getStringId(string); }
QString stringForIndex(int index) const { return stringTable.stringForIndex(index); }
int registerGetterLookup(const QString &name, LookupMode mode);
int registerGetterLookup(int nameIndex, LookupMode mode);
int registerSetterLookup(const QString &name);
int registerSetterLookup(int nameIndex);
int registerGlobalGetterLookup(int nameIndex, LookupMode mode);
int registerQmlContextPropertyGetterLookup(int nameIndex, LookupMode mode);
int lookupNameIndex(int index) const { return lookups[index].nameIndex(); }
QString lookupName(int index) const { return stringForIndex(lookupNameIndex(index)); }
int registerRegExp(QQmlJS::AST::RegExpLiteral *regexp);
int registerConstant(ReturnedValue v);
ReturnedValue constant(int idx) const;
int registerJSClass(const QStringList &members);
int jsClassSize(int jsClassId) const;
QString jsClassMember(int jsClassId, int member) const;
int registerTranslation(const CompiledData::TranslationData &translation);
enum GeneratorOption {
GenerateWithStringTable,
GenerateWithoutStringTable
};
QV4::CompiledData::Unit *generateUnit(GeneratorOption option = GenerateWithStringTable);
void writeFunction(char *f, Context *irFunction) const;
void writeClass(char *f, const Class &c);
void writeTemplateObject(char *f, const TemplateObject &o);
void writeBlock(char *f, Context *irBlock) const;
StringTableGenerator stringTable;
QString codeGeneratorName;
private:
CompiledData::Unit generateHeader(GeneratorOption option, quint32_le *functionOffsets, uint *jsClassDataOffset);
Module *module;
QList<CompiledData::Lookup> lookups;
QVector<CompiledData::RegExp> regexps;
QVector<ReturnedValue> constants;
QByteArray jsClassData;
QVector<int> jsClassOffsets;
QVector<CompiledData::TranslationData> translations;
};
}
}
QT_END_NAMESPACE
#endif
|
