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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#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_QMLCOMPILER_PRIVATE_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_QMLCOMPILER_PRIVATE_EXPORT JSUnitGenerator {
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);
int registerGetterLookup(int nameIndex);
int registerSetterLookup(const QString &name);
int registerSetterLookup(int nameIndex);
int registerGlobalGetterLookup(int nameIndex);
int registerQmlContextPropertyGetterLookup(int nameIndex);
int registerRegExp(QQmlJS::AST::RegExpLiteral *regexp);
int registerConstant(ReturnedValue v);
ReturnedValue constant(int idx);
int registerJSClass(const QStringList &members);
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
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