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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.
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10 ** GNU Lesser General Public License Usage
11 ** This file may be used under the terms of the GNU Lesser General Public
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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
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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;
218 DynamicSlot(const DynamicSlot &);
222 QList<QByteArray> parameterNames;
223 LocationSpan location;
226 // The list of dynamic properties
227 QList<DynamicProperty> dynamicProperties;
228 // The list of dynamic signals
229 QList<DynamicSignal> dynamicSignals;
230 // The list of dynamic slots
231 QList<DynamicSlot> dynamicSlots;
234 class Q_DECLARATIVE_EXPORT Variant
246 Variant(const Variant &);
248 Variant(double, const QString &asWritten=QString());
249 Variant(const QString &);
250 Variant(const QString &, QDeclarativeJS::AST::Node *);
251 Variant &operator=(const Variant &);
255 bool isBoolean() const { return type() == Boolean; }
256 bool isNumber() const { return type() == Number; }
257 bool isString() const { return type() == String; }
258 bool isScript() const { return type() == Script; }
259 bool isStringList() const;
261 bool asBoolean() const;
262 QString asString() const;
263 double asNumber() const;
264 QString asScript() const;
265 QDeclarativeJS::AST::Node *asAST() const;
266 QStringList asStringList() const;
273 QDeclarativeJS::AST::Node *n;
278 class Value : public QDeclarativeRefCount
285 // The type of this value assignment is not yet known
287 // This is used as a literal property assignment
289 // This is used as a property binding assignment
291 // This is used as a QDeclarativePropertyValueSource assignment
293 // This is used as a QDeclarativePropertyValueInterceptor assignment
295 // This is used as a property QObject assignment
297 // This is used as a signal object assignment
299 // This is used as a signal expression assignment
301 // This is used as an id assignment only
306 // ### Temporary (for id only)
307 QString primitive() const { return value.isString() ? value.asString() : value.asScript(); }
314 LocationSpan location;
317 class Property : public QDeclarativeRefCount
321 Property(const QByteArray &n);
324 // The Object to which this property is attached
327 Object *getValue(const LocationSpan &);
328 void addValue(Value *v);
329 void addOnValue(Value *v);
331 // The QVariant::Type of the property, or 0 (QVariant::Invalid) if
334 // The metaobject index of this property, or -1 if unknown.
337 // Returns true if this is an empty property - both value and values
339 bool isEmpty() const;
340 // The list of values assigned to this property. Content in values
341 // and value are mutually exclusive
342 QList<Value *> values;
343 // The list of values assigned to this property using the "on" syntax
344 QList<Value *> onValues;
345 // The accessed property. This is used to represent dot properties.
346 // Content in value and values are mutually exclusive.
350 // True if this property was accessed as the default property.
352 // True if the setting of this property will be deferred. Set by the
353 // QDeclarativeCompiler
355 // True if this property is a value-type pseudo-property
356 bool isValueTypeSubProperty;
357 // True if this property is a property alias. Set by the
358 // QDeclarativeCompiler
361 LocationSpan location;
362 LocationRange listValueRange;
366 Q_DECLARE_OPERATORS_FOR_FLAGS(QDeclarativeParser::Object::ScriptBlock::Pragmas);
370 Q_DECLARE_METATYPE(QDeclarativeParser::Variant)
374 #endif // QDECLARATIVEPARSER_P_H