qqmljslexer

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qqmljslexer_p.h

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/****************************************************************************

** Contact: https://www.qt.io/licensing/

** This file is part of the QtQml module of the Qt Toolkit.

** $QT_BEGIN_LICENSE:LGPL$

** 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.

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 3 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL3 included in the

** packaging of this file. Please review the following information to

** ensure the GNU Lesser General Public License version 3 requirements

** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.

** GNU General Public License Usage

** Alternatively, this file may be used under the terms of the GNU

** General Public License version 2.0 or (at your option) the GNU General

** Public license version 3 or any later version approved by the KDE Free

** Qt Foundation. The licenses are as published by the Free Software

** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3

** included in the packaging of this file. Please review the following

** information to ensure the GNU General Public License requirements will

** be met: https://www.gnu.org/licenses/gpl-2.0.html and

** https://www.gnu.org/licenses/gpl-3.0.html.

** $QT_END_LICENSE$

****************************************************************************/

#ifndef QQMLJSLEXER_P_H

#define QQMLJSLEXER_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 <private/qqmljsglobal_p.h>

#include <private/qqmljsgrammar_p.h>

#include <QtCore/qstring.h>

#include <QtCore/qstack.h>

QT_QML_BEGIN_NAMESPACE

namespace QQmlJS {

class Engine;

class DiagnosticMessage;

class Directives;

class QML_PARSER_EXPORT Lexer: public QQmlJSGrammar

{

public:

enum {

T_ABSTRACT = T_RESERVED_WORD,

T_BOOLEAN = T_RESERVED_WORD,

T_BYTE = T_RESERVED_WORD,

T_CHAR = T_RESERVED_WORD,

T_DOUBLE = T_RESERVED_WORD,

T_FINAL = T_RESERVED_WORD,

T_FLOAT = T_RESERVED_WORD,

T_GOTO = T_RESERVED_WORD,

T_IMPLEMENTS = T_RESERVED_WORD,

T_INT = T_RESERVED_WORD,

T_INTERFACE = T_RESERVED_WORD,

T_LONG = T_RESERVED_WORD,

T_NATIVE = T_RESERVED_WORD,

T_PACKAGE = T_RESERVED_WORD,

T_PRIVATE = T_RESERVED_WORD,

T_PROTECTED = T_RESERVED_WORD,

T_SHORT = T_RESERVED_WORD,

T_SYNCHRONIZED = T_RESERVED_WORD,

T_THROWS = T_RESERVED_WORD,

T_TRANSIENT = T_RESERVED_WORD,

T_VOLATILE = T_RESERVED_WORD

};

enum Error {

NoError,

IllegalCharacter,

IllegalNumber,

UnclosedStringLiteral,

100

IllegalEscapeSequence,

101

IllegalUnicodeEscapeSequence,

102

UnclosedComment,

103

IllegalExponentIndicator,

104

IllegalIdentifier,

105

IllegalHexadecimalEscapeSequence

106

};

107

108

enum RegExpBodyPrefix {

NoPrefix,

EqualPrefix

};

enum RegExpFlag {

RegExp_Global = 0x01,

115

RegExp_IgnoreCase = 0x02,

116

RegExp_Multiline = 0x04

117

};

118

119

enum ParseModeFlags {

120

QmlMode = 0x1,

121

YieldIsKeyword = 0x2,

122

StaticIsKeyword = 0x4

};

public:

Lexer(Engine *engine);

127

128

int parseModeFlags() const {

129

int flags = 0;

130

if (qmlMode())

qmlMode()

Description

TRUE

evaluated 4616183 times by 143 tests

Evaluated by:

tst_bindingdependencyapi
tst_drawingmodes
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qmlcachegen
tst_qmldiskcache
tst_qmlmin
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
tst_qqmlfileselector
tst_qqmlimport
tst_qqmlincubator
tst_qqmlinfo
...

FALSE

evaluated 24544091 times by 26 tests

Evaluated by:

tst_ecmascripttests
tst_examples
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmlmin
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlincubator
tst_qqmllistmodelworkerscript
tst_qqmlparser
tst_qqmlqt
tst_qqmlsqldatabase
tst_qqmltranslation
tst_qqmlvaluetypes
tst_qqmlxmlhttprequest
tst_qquickanimationcontroller
tst_qquicklayouts
tst_qquickworkerscript
tst_quicktestmainwithsetup
tst_qv4assembler
tst_qv4debugger
...

4616183-24544091

131

flags |= QmlMode|StaticIsKeyword;

executed 4616183 times by 143 tests: flags |= QmlMode|StaticIsKeyword;

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qmlcachegen
tst_qmldiskcache
tst_qmlmin
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
tst_qqmlfileselector
tst_qqmlimport
tst_qqmlincubator
tst_qqmlinfo
...

4616183

132

if (yieldIsKeyWord())

yieldIsKeyWord()

Description

TRUE

evaluated 116088 times by 2 tests

Evaluated by:

tst_ecmascripttests
tst_qqmlparser

FALSE

evaluated 29052789 times by 148 tests

Evaluated by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qmlmin
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
...

116088-29052789

133

flags |= YieldIsKeyword;

executed 116092 times by 2 tests: flags |= YieldIsKeyword;

Executed by:

tst_ecmascripttests
tst_qqmlparser

116092

134

if (_staticIsKeyword)

_staticIsKeyword

Description

TRUE

evaluated 84259 times by 2 tests

Evaluated by:

tst_ecmascripttests
tst_qqmlparser

FALSE

evaluated 29106226 times by 148 tests

Evaluated by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qmlmin
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
...

84259-29106226

135

flags |= StaticIsKeyword;

executed 84260 times by 2 tests: flags |= StaticIsKeyword;

Executed by:

tst_ecmascripttests
tst_qqmlparser

84260

136

return flags;

executed 29190215 times by 148 tests: return flags;

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qmlmin
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
...

29190215

137

}

138

139

bool qmlMode() const;

140

bool yieldIsKeyWord() const { return _generatorLevel != 0; }

executed 29164647 times by 148 tests: return _generatorLevel != 0;

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qmlmin
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
...

29164647

141

void setStaticIsKeyword(bool b) { _staticIsKeyword = b; }

executed 49114 times by 2 tests: end of block

Executed by:

tst_ecmascripttests
tst_qqmlparser

49114

142

143

QString code() const;

144

void setCode(const QString &code, int lineno, bool qmlMode = true);

int lex();

bool scanRegExp(RegExpBodyPrefix prefix = NoPrefix);

149

bool scanDirectives(Directives *directives, DiagnosticMessage *error);

150

151

int regExpFlags() const { return _patternFlags; }

executed 1077704 times by 10 tests: return _patternFlags;

Executed by:

tst_ecmascripttests
tst_examples
tst_parserstress
tst_qjsengine
tst_qjsvalue
tst_qmlmin
tst_qqmlecmascript
tst_qqmlparser
tst_qqmlxmlhttprequest
tst_qquicktextinput

1077704

152

QString regExpPattern() const { return _tokenText; }

executed 1070192 times by 10 tests: return _tokenText;

Executed by:

tst_ecmascripttests
tst_examples
tst_parserstress
tst_qjsengine
tst_qjsvalue
tst_qmlmin
tst_qqmlecmascript
tst_qqmlparser
tst_qqmlxmlhttprequest
tst_qquicktextinput

1070192

153

154

int tokenKind() const { return _tokenKind; }

executed 1778771 times by 27 tests: return _tokenKind;

Executed by:

tst_ecmascripttests
tst_examples
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmlmin
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlincubator
tst_qqmllistmodelworkerscript
tst_qqmlmetatype
tst_qqmlparser
tst_qqmlqt
tst_qqmlsqldatabase
tst_qqmltranslation
tst_qqmlvaluetypes
tst_qqmlxmlhttprequest
tst_qquickanimationcontroller
tst_qquicklayouts
tst_qquickworkerscript
tst_quicktestmainwithsetup
tst_qv4assembler
...

1778771

155

int tokenOffset() const { return _tokenStartPtr - _code.unicode(); }

executed 76807374 times by 148 tests: return _tokenStartPtr - _code.unicode();

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qmlmin
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
...

76807374

156

int tokenLength() const { return _tokenLength; }

executed 75901609 times by 147 tests: return _tokenLength;

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
tst_qqmlfileselector
...

75901609

157

158

int tokenStartLine() const { return _tokenLine; }

executed 76991332 times by 148 tests: return _tokenLine;

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qmlmin
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
...

76991332

159

int tokenStartColumn() const { return _tokenColumn; }

executed 77024699 times by 148 tests: return _tokenColumn;

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qmlmin
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
...

77024699

160

161

inline QStringRef tokenSpell() const { return _tokenSpell; }

executed 74819225 times by 147 tests: return _tokenSpell;

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
tst_qqmlfileselector
...

74819225

162

double tokenValue() const { return _tokenValue; }

executed 74776242 times by 147 tests: return _tokenValue;

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginecleanup
tst_qqmlenginedebugservice
tst_qqmlexpression
tst_qqmlfileselector
...

74776242

163

QString tokenText() const;

164

165

Error errorCode() const;

166

QString errorMessage() const;

167

168

bool prevTerminator() const;

169

bool followsClosingBrace() const;

170

bool canInsertAutomaticSemicolon(int token) const;

171

172

enum ParenthesesState {

IgnoreParentheses,

CountParentheses,

BalancedParentheses

};

void enterGeneratorBody() { ++_generatorLevel; }

executed 18020 times by 2 tests: end of block

Executed by:

tst_ecmascripttests
tst_qqmlparser

18020

179

void leaveGeneratorBody() { --_generatorLevel; }

executed 17329 times by 2 tests: end of block

Executed by:

tst_ecmascripttests
tst_qqmlparser

17329

180

181

protected:

182

static int classify(const QChar *s, int n, int parseModeFlags);

183

184

private:

185

inline void scanChar();

186

int scanToken();

187

int scanNumber(QChar ch);

188

enum ScanStringMode {

SingleQuote = '\'',

DoubleQuote = '"',

TemplateHead = '`',

TemplateContinuation = 0

193

};

194

int scanString(ScanStringMode mode);

195

196

bool isLineTerminator() const;

197

unsigned isLineTerminatorSequence() const;

198

static bool isIdentLetter(QChar c);

199

static bool isDecimalDigit(ushort c);

200

static bool isHexDigit(QChar c);

201

static bool isOctalDigit(ushort c);

202

203

void syncProhibitAutomaticSemicolon();

204

uint decodeUnicodeEscapeCharacter(bool *ok);

205

QChar decodeHexEscapeCharacter(bool *ok);

private:

Engine *_engine;

QString _code;

QString _tokenText;

QString _errorMessage;

213

QStringRef _tokenSpell;

214

215

const QChar *_codePtr;

216

const QChar *_endPtr;

217

const QChar *_tokenStartPtr;

QChar _char;

Error _errorCode;

int _currentLineNumber;

223

int _currentColumnNumber;

double _tokenValue;

// parentheses state

ParenthesesState _parenthesesState;

228

int _parenthesesCount;

229

230

// template string stack

231

QStack<int> _outerTemplateBraceCount;

232

int _bracesCount = -1;

int _stackToken;

int _patternFlags;

int _tokenKind;

int _tokenLength;

int _tokenLine;

int _tokenColumn;

bool _validTokenText;

243

bool _prohibitAutomaticSemicolon;

244

bool _restrictedKeyword;

245

bool _terminator;

246

bool _followsClosingBrace;

247

bool _delimited;

248

bool _qmlMode;

249

int _generatorLevel = 0;

250

bool _staticIsKeyword = false;

251

};

252

253

} // end of namespace QQmlJS

QT_QML_END_NAMESPACE

#endif // LEXER_H

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