1 /****************************************************************************
3 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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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 ** GNU Lesser General Public License Usage
11 ** This file may be used under the terms of the GNU Lesser General Public
12 ** License version 2.1 as published by the Free Software Foundation and
13 ** appearing in the file LICENSE.LGPL included in the packaging of this
14 ** file. Please review the following information to ensure the GNU Lesser
15 ** General Public License version 2.1 requirements will be met:
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18 ** In addition, as a special exception, Nokia gives you certain additional
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20 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
22 ** GNU General Public License Usage
23 ** Alternatively, this file may be used under the terms of the GNU General
24 ** Public License version 3.0 as published by the Free Software Foundation
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26 ** file. Please review the following information to ensure the GNU General
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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 QDeclarativeScriptParser and consumed by the
81 QDeclarativeCompiler. During the compilation phase the compiler will update some of
82 the fields for its own use.
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 eventually.
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
128 // The fully-qualified name of this type
131 QByteArray className;
132 // The id assigned to the object (if any). Set by the QDeclarativeCompiler
134 // The id index assigned to the object (if any). Set by the QDeclarativeCompiler
136 // Custom parsed data
138 // Bit mask of the properties assigned bindings
139 QByteArray bindingBitmask;
140 void setBindingBit(int);
141 // Returns the metaobject for this type, or 0 if not available.
142 // Internally selectd between the metatype and extObject variables
143 const QMetaObject *metaObject() const;
145 // The compile time metaobject for this type
146 const QMetaObject *metatype;
147 // The synthesized metaobject, if QML added signals or properties to
148 // this type. Otherwise null
149 QAbstractDynamicMetaObject extObject;
150 QByteArray metadata; // Generated by compiler
151 QByteArray synthdata; // Generated by compiler
152 QDeclarativePropertyCache *synthCache; // Generated by compiler
154 Property *getDefaultProperty();
155 Property *getProperty(const QByteArray &name, bool create=true);
157 Property *defaultProperty;
158 QHash<QByteArray, Property *> properties;
160 // Output of the compilation phase (these properties continue to exist
161 // in either the defaultProperty or properties members too)
162 void addValueProperty(Property *);
163 void addSignalProperty(Property *);
164 void addAttachedProperty(Property *);
165 void addGroupedProperty(Property *);
166 void addValueTypeProperty(Property *);
167 void addScriptStringProperty(Property *, int = 0);
168 QList<Property *> valueProperties;
169 QList<Property *> signalProperties;
170 QList<Property *> attachedProperties;
171 QList<Property *> groupedProperties;
172 QList<Property *> valueTypeProperties;
173 QList<QPair<Property *, int> > scriptStringProperties;
175 // Script blocks that were nested under this object
181 Q_DECLARE_FLAGS(Pragmas, Pragma)
188 // The bytes to cast instances by to get to the QDeclarativeParserStatus
189 // interface. -1 indicates the type doesn't support this interface.
190 // Set by the QDeclarativeCompiler.
191 int parserStatusCast;
193 LocationSpan location;
195 struct DynamicProperty {
197 DynamicProperty(const DynamicProperty &);
199 enum Type { Variant, Int, Bool, Real, String, Url, Color, Time, Date, DateTime, Alias, Custom, CustomList };
201 bool isDefaultProperty;
203 QByteArray customType;
205 QDeclarativeParser::Property *defaultValue;
206 LocationSpan location;
208 struct DynamicSignal {
210 DynamicSignal(const DynamicSignal &);
213 QList<QByteArray> parameterTypes;
214 QList<QByteArray> parameterNames;
215 LocationSpan location;
219 DynamicSlot(const DynamicSlot &);
223 QList<QByteArray> parameterNames;
224 LocationSpan location;
227 // The list of dynamic properties
228 QList<DynamicProperty> dynamicProperties;
229 // The list of dynamic signals
230 QList<DynamicSignal> dynamicSignals;
231 // The list of dynamic slots
232 QList<DynamicSlot> dynamicSlots;
235 class Q_DECLARATIVE_EXPORT Variant
247 Variant(const Variant &);
249 Variant(double, const QString &asWritten=QString());
250 Variant(const QString &);
251 Variant(const QString &, QDeclarativeJS::AST::Node *);
252 Variant &operator=(const Variant &);
256 bool isBoolean() const { return type() == Boolean; }
257 bool isNumber() const { return type() == Number; }
258 bool isString() const { return type() == String; }
259 bool isScript() const { return type() == Script; }
260 bool isStringList() const;
262 bool asBoolean() const;
263 QString asString() const;
264 double asNumber() const;
265 QString asScript() const;
266 QDeclarativeJS::AST::Node *asAST() const;
267 QStringList asStringList() const;
274 QDeclarativeJS::AST::Node *n;
279 class Value : public QDeclarativeRefCount
286 // The type of this value assignment is not yet known
288 // This is used as a literal property assignment
290 // This is used as a property binding assignment
292 // This is used as a QDeclarativePropertyValueSource assignment
294 // This is used as a QDeclarativePropertyValueInterceptor assignment
296 // This is used as a property QObject assignment
298 // This is used as a signal object assignment
300 // This is used as a signal expression assignment
302 // This is used as an id assignment only
307 // ### Temporary (for id only)
308 QString primitive() const { return value.isString() ? value.asString() : value.asScript(); }
315 LocationSpan location;
318 class Property : public QDeclarativeRefCount
322 Property(const QByteArray &n);
325 // The Object to which this property is attached
328 Object *getValue(const LocationSpan &);
329 void addValue(Value *v);
330 void addOnValue(Value *v);
332 // The QVariant::Type of the property, or 0 (QVariant::Invalid) if
335 // The metaobject index of this property, or -1 if unknown.
338 // Returns true if this is an empty property - both value and values
340 bool isEmpty() const;
341 // The list of values assigned to this property. Content in values
342 // and value are mutually exclusive
343 QList<Value *> values;
344 // The list of values assigned to this property using the "on" syntax
345 QList<Value *> onValues;
346 // The accessed property. This is used to represent dot properties.
347 // Content in value and values are mutually exclusive.
351 // True if this property was accessed as the default property.
353 // True if the setting of this property will be deferred. Set by the
354 // QDeclarativeCompiler
356 // True if this property is a value-type pseudo-property
357 bool isValueTypeSubProperty;
358 // True if this property is a property alias. Set by the
359 // QDeclarativeCompiler
362 LocationSpan location;
363 LocationRange listValueRange;
367 Q_DECLARE_OPERATORS_FOR_FLAGS(QDeclarativeParser::Object::ScriptBlock::Pragmas);
371 Q_DECLARE_METATYPE(QDeclarativeParser::Variant)
375 #endif // QDECLARATIVEPARSER_P_H