1 /****************************************************************************
3 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4 ** All rights reserved.
5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** No Commercial Usage
11 ** This file contains pre-release code and may not be distributed.
12 ** You may use this file in accordance with the terms and conditions
13 ** contained in the Technology Preview License Agreement accompanying
16 ** GNU Lesser General Public License Usage
17 ** Alternatively, this file may be used under the terms of the GNU Lesser
18 ** General Public License version 2.1 as published by the Free Software
19 ** Foundation and appearing in the file LICENSE.LGPL included in the
20 ** packaging of this file. Please review the following information to
21 ** ensure the GNU Lesser General Public License version 2.1 requirements
22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24 ** In addition, as a special exception, Nokia gives you certain additional
25 ** rights. These rights are described in the Nokia Qt LGPL Exception
26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28 ** If you have questions regarding the use of this file, please contact
29 ** Nokia at qt-info@nokia.com.
40 ****************************************************************************/
42 #ifndef QDECLARATIVEPARSER_P_H
43 #define QDECLARATIVEPARSER_P_H
49 // This file is not part of the Qt API. It exists purely as an
50 // implementation detail. This header file may change from version to
51 // version without notice, or even be removed.
56 #include "qdeclarative.h"
58 #include <QtCore/qbytearray.h>
59 #include <QtCore/qlist.h>
60 #include <QtCore/qurl.h>
61 #include <QtCore/qstring.h>
62 #include <QtCore/qstringlist.h>
64 #include <private/qobject_p.h>
65 #include <private/qdeclarativerefcount_p.h>
66 #include <private/qdeclarativeglobal_p.h>
72 QT_MODULE(Declarative)
74 class QDeclarativePropertyCache;
75 namespace QDeclarativeJS { namespace AST { class Node; } }
80 These types are created (and owned) by the QDeclarativeXmlParser and consumed by the
81 QDeclarativeCompiler. During the compilation phase the compiler will update some of
82 the fields for both its own use and for the use of the upcoming QDeclarativeDom API.
84 The types are part of the generic sounding "QDeclarativeParser" namespace for legacy
85 reasons (there used to be more in this namespace) and will be cleaned up and
86 migrated into a more appropriate location shortly.
88 namespace QDeclarativeParser
92 Location() : line(-1), column(-1) {}
99 LocationRange() : offset(0), length(0) {}
110 bool operator<(LocationSpan &o) const {
111 return (start.line < o.start.line) ||
112 (start.line == o.start.line && start.column < o.start.column);
117 class Object : public QDeclarativeRefCount
123 // Type of the object. The integer is an index into the
124 // QDeclarativeCompiledData::types array, or -1 if the object is a property
127 // The url of this object if it is an external type. Used by the DOM
130 // version information if type is defined in library or C++
134 // The fully-qualified name of this type
137 QByteArray className;
138 // The id assigned to the object (if any). Set by the QDeclarativeCompiler
140 // The id index assigned to the object (if any). Set by the QDeclarativeCompiler
142 // Custom parsed data
144 // Bit mask of the properties assigned bindings
145 QByteArray bindingBitmask;
146 void setBindingBit(int);
147 // Returns the metaobject for this type, or 0 if not available.
148 // Internally selectd between the metatype and extObject variables
149 const QMetaObject *metaObject() const;
151 // The compile time metaobject for this type
152 const QMetaObject *metatype;
153 // The synthesized metaobject, if QML added signals or properties to
154 // this type. Otherwise null
155 QAbstractDynamicMetaObject extObject;
156 QByteArray metadata; // Generated by compiler
157 QByteArray synthdata; // Generated by compiler
158 QDeclarativePropertyCache *synthCache; // Generated by compiler
160 Property *getDefaultProperty();
161 Property *getProperty(const QByteArray &name, bool create=true);
163 Property *defaultProperty;
164 QHash<QByteArray, Property *> properties;
166 // Output of the compilation phase (these properties continue to exist
167 // in either the defaultProperty or properties members too)
168 void addValueProperty(Property *);
169 void addSignalProperty(Property *);
170 void addAttachedProperty(Property *);
171 void addGroupedProperty(Property *);
172 void addValueTypeProperty(Property *);
173 void addScriptStringProperty(Property *, int = 0);
174 QList<Property *> valueProperties;
175 QList<Property *> signalProperties;
176 QList<Property *> attachedProperties;
177 QList<Property *> groupedProperties;
178 QList<Property *> valueTypeProperties;
179 QList<QPair<Property *, int> > scriptStringProperties;
181 // Script blocks that were nested under this object
187 Q_DECLARE_FLAGS(Pragmas, Pragma)
194 // The bytes to cast instances by to get to the QDeclarativeParserStatus
195 // interface. -1 indicates the type doesn't support this interface.
196 // Set by the QDeclarativeCompiler.
197 int parserStatusCast;
199 LocationSpan location;
201 struct DynamicProperty {
203 DynamicProperty(const DynamicProperty &);
205 enum Type { Variant, Int, Bool, Real, String, Url, Color, Time, Date, DateTime, Alias, Custom, CustomList };
207 bool isDefaultProperty;
209 QByteArray customType;
211 QDeclarativeParser::Property *defaultValue;
212 LocationSpan location;
214 struct DynamicSignal {
216 DynamicSignal(const DynamicSignal &);
219 QList<QByteArray> parameterTypes;
220 QList<QByteArray> parameterNames;
224 DynamicSlot(const DynamicSlot &);
228 QList<QByteArray> parameterNames;
229 LocationSpan location;
232 // The list of dynamic properties
233 QList<DynamicProperty> dynamicProperties;
234 // The list of dynamic signals
235 QList<DynamicSignal> dynamicSignals;
236 // The list of dynamic slots
237 QList<DynamicSlot> dynamicSlots;
240 class Q_DECLARATIVE_EXPORT Variant
252 Variant(const Variant &);
254 Variant(double, const QString &asWritten=QString());
255 Variant(const QString &);
256 Variant(const QString &, QDeclarativeJS::AST::Node *);
257 Variant &operator=(const Variant &);
261 bool isBoolean() const { return type() == Boolean; }
262 bool isNumber() const { return type() == Number; }
263 bool isString() const { return type() == String; }
264 bool isScript() const { return type() == Script; }
265 bool isStringList() const;
267 bool asBoolean() const;
268 QString asString() const;
269 double asNumber() const;
270 QString asScript() const;
271 QDeclarativeJS::AST::Node *asAST() const;
272 QStringList asStringList() const;
279 QDeclarativeJS::AST::Node *n;
284 class Value : public QDeclarativeRefCount
291 // The type of this value assignment is not yet known
293 // This is used as a literal property assignment
295 // This is used as a property binding assignment
297 // This is used as a QDeclarativePropertyValueSource assignment
299 // This is used as a QDeclarativePropertyValueInterceptor assignment
301 // This is used as a property QObject assignment
303 // This is used as a signal object assignment
305 // This is used as a signal expression assignment
307 // This is used as an id assignment only
312 // ### Temporary (for id only)
313 QString primitive() const { return value.isString() ? value.asString() : value.asScript(); }
320 LocationSpan location;
323 class Property : public QDeclarativeRefCount
327 Property(const QByteArray &n);
330 // The Object to which this property is attached
333 Object *getValue(const LocationSpan &);
334 void addValue(Value *v);
335 void addOnValue(Value *v);
337 // The QVariant::Type of the property, or 0 (QVariant::Invalid) if
340 // The metaobject index of this property, or -1 if unknown.
343 // Returns true if this is an empty property - both value and values
345 bool isEmpty() const;
346 // The list of values assigned to this property. Content in values
347 // and value are mutually exclusive
348 QList<Value *> values;
349 // The list of values assigned to this property using the "on" syntax
350 QList<Value *> onValues;
351 // The accessed property. This is used to represent dot properties.
352 // Content in value and values are mutually exclusive.
356 // True if this property was accessed as the default property.
358 // True if the setting of this property will be deferred. Set by the
359 // QDeclarativeCompiler
361 // True if this property is a value-type pseudo-property
362 bool isValueTypeSubProperty;
363 // True if this property is a property alias. Set by the
364 // QDeclarativeCompiler
367 LocationSpan location;
368 LocationRange listValueRange;
369 QList<int> listCommaPositions;
373 Q_DECLARE_OPERATORS_FOR_FLAGS(QDeclarativeParser::Object::ScriptBlock::Pragmas);
377 Q_DECLARE_METATYPE(QDeclarativeParser::Variant)
381 #endif // QDECLARATIVEPARSER_P_H