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qqmltypeloader_p.h

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1/****************************************************************************-
2**-
3** Copyright (C) 2016 The Qt Company Ltd.-
4** Contact: https://www.qt.io/licensing/-
5**-
6** This file is part of the QtQml module of the Qt Toolkit.-
7**-
8** $QT_BEGIN_LICENSE:LGPL$-
9** Commercial License Usage-
10** Licensees holding valid commercial Qt licenses may use this file in-
11** accordance with the commercial license agreement provided with the-
12** Software or, alternatively, in accordance with the terms contained in-
13** a written agreement between you and The Qt Company. For licensing terms-
14** and conditions see https://www.qt.io/terms-conditions. For further-
15** information use the contact form at https://www.qt.io/contact-us.-
16**-
17** GNU Lesser General Public License Usage-
18** Alternatively, this file may be used under the terms of the GNU Lesser-
19** General Public License version 3 as published by the Free Software-
20** Foundation and appearing in the file LICENSE.LGPL3 included in the-
21** packaging of this file. Please review the following information to-
22** ensure the GNU Lesser General Public License version 3 requirements-
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.-
24**-
25** GNU General Public License Usage-
26** Alternatively, this file may be used under the terms of the GNU-
27** General Public License version 2.0 or (at your option) the GNU General-
28** Public license version 3 or any later version approved by the KDE Free-
29** Qt Foundation. The licenses are as published by the Free Software-
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3-
31** included in the packaging of this file. Please review the following-
32** information to ensure the GNU General Public License requirements will-
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and-
34** https://www.gnu.org/licenses/gpl-3.0.html.-
35**-
36** $QT_END_LICENSE$-
37**-
38****************************************************************************/-
39-
40#ifndef QQMLTYPELOADER_P_H-
41#define QQMLTYPELOADER_P_H-
42-
43//-
44// W A R N I N G-
45// --------------
46//-
47// This file is not part of the Qt API. It exists purely as an-
48// implementation detail. This header file may change from version to-
49// version without notice, or even be removed.-
50//-
51// We mean it.-
52//-
53-
54#include <QtQml/qtqmlglobal.h>-
55#include <QtCore/qobject.h>-
56#include <QtCore/qatomic.h>-
57#include <QtCore/qfileinfo.h>-
58#include <QtCore/qcache.h>-
59#if QT_CONFIG(qml_network)-
60#include <QtNetwork/qnetworkreply.h>-
61#endif-
62#include <QtQml/qqmlerror.h>-
63#include <QtQml/qqmlengine.h>-
64#include <QtQml/qqmlfile.h>-
65#include <QtQml/qqmlabstracturlinterceptor.h>-
66-
67#include <private/qhashedstring_p.h>-
68#include <private/qqmlimport_p.h>-
69#include <private/qqmlcleanup_p.h>-
70#include <private/qqmldirparser_p.h>-
71#include <private/qflagpointer_p.h>-
72#include <private/qqmlirbuilder_p.h>-
73-
74#include <private/qv4value_p.h>-
75#include <private/qv4script_p.h>-
76-
77QT_BEGIN_NAMESPACE-
78-
79class QQmlScriptData;-
80class QQmlScriptBlob;-
81class QQmlQmldirData;-
82class QQmlTypeLoader;-
83class QQmlComponentPrivate;-
84class QQmlTypeData;-
85class QQmlTypeLoader;-
86class QQmlExtensionInterface;-
87class QQmlProfiler;-
88struct QQmlCompileError;-
89-
90namespace QmlIR {-
91struct Document;-
92}-
93-
94class Q_QML_PRIVATE_EXPORT QQmlDataBlob : public QQmlRefCount-
95{-
96public:-
97 enum Status {-
98 Null, // Prior to QQmlTypeLoader::load()-
99 Loading, // Prior to data being received and dataReceived() being called-
100 WaitingForDependencies, // While there are outstanding addDependency()s-
101 ResolvingDependencies, // While resolving outstanding dependencies, to detect cycles-
102 Complete, // Finished-
103 Error // Error-
104 };-
105-
106 enum Type { //Matched in QQmlAbstractUrlInterceptor-
107 QmlFile = QQmlAbstractUrlInterceptor::QmlFile,-
108 JavaScriptFile = QQmlAbstractUrlInterceptor::JavaScriptFile,-
109 QmldirFile = QQmlAbstractUrlInterceptor::QmldirFile-
110 };-
111-
112 QQmlDataBlob(const QUrl &, Type, QQmlTypeLoader* manager);-
113 ~QQmlDataBlob() override;-
114-
115 void startLoading();-
116-
117 QQmlTypeLoader *typeLoader() const { return m_typeLoader; }
executed 489193 times by 142 tests: return m_typeLoader;
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_parserstress
  • tst_qjsengine
  • 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
  • tst_qqmlimport
  • tst_qqmlincubator
  • tst_qqmlinfo
  • tst_qqmlinstantiator
  • ...
489193
118-
119 Type type() const;-
120-
121 Status status() const;-
122 bool isNull() const;-
123 bool isLoading() const;-
124 bool isWaiting() const;-
125 bool isComplete() const;-
126 bool isError() const;-
127 bool isCompleteOrError() const;-
128-
129 qreal progress() const;-
130-
131 QUrl url() const;-
132 QString urlString() const;-
133 QUrl finalUrl() const;-
134 QString finalUrlString() const;-
135-
136 QList<QQmlError> errors() const;-
137-
138 class SourceCodeData {-
139 public:-
140 QString readAll(QString *error) const;-
141 QDateTime sourceTimeStamp() const;-
142 bool exists() const;-
143 bool isEmpty() const;-
144 private:-
145 friend class QQmlDataBlob;-
146 friend class QQmlTypeLoader;-
147 QString inlineSourceCode;-
148 QFileInfo fileInfo;-
149 bool hasInlineSourceCode = false;-
150 };-
151-
152protected:-
153 // Can be called from within callbacks-
154 void setError(const QQmlError &);-
155 void setError(const QList<QQmlError> &errors);-
156 void setError(const QQmlCompileError &error);-
157 void setError(const QVector<QQmlCompileError> &errors);-
158 void setError(const QString &description);-
159 void addDependency(QQmlDataBlob *);-
160-
161 // Callbacks made in load thread-
162 virtual void dataReceived(const SourceCodeData &) = 0;-
163 virtual void initializeFromCachedUnit(const QV4::CompiledData::Unit*) = 0;-
164 virtual void done();-
165#if QT_CONFIG(qml_network)-
166 virtual void networkError(QNetworkReply::NetworkError);-
167#endif-
168 virtual void dependencyError(QQmlDataBlob *);-
169 virtual void dependencyComplete(QQmlDataBlob *);-
170 virtual void allDependenciesDone();-
171-
172 // Callbacks made in main thread-
173 virtual void downloadProgressChanged(qreal);-
174 virtual void completed();-
175-
176protected:-
177 // Manager that is currently fetching data for me-
178 QQmlTypeLoader *m_typeLoader;-
179-
180private:-
181 friend class QQmlTypeLoader;-
182 friend class QQmlTypeLoaderThread;-
183-
184 void tryDone();-
185 void cancelAllWaitingFor();-
186 void notifyAllWaitingOnMe();-
187 void notifyComplete(QQmlDataBlob *);-
188-
189 struct ThreadData {-
190 inline ThreadData();-
191 inline QQmlDataBlob::Status status() const;-
192 inline void setStatus(QQmlDataBlob::Status);-
193 inline bool isAsync() const;-
194 inline void setIsAsync(bool);-
195 inline quint8 progress() const;-
196 inline void setProgress(quint8);-
197-
198 private:-
199 QAtomicInt _p;-
200 };-
201 ThreadData m_data;-
202-
203 // m_errors should *always* be written before the status is set to Error.-
204 // We use the status change as a memory fence around m_errors so that locking-
205 // isn't required. Once the status is set to Error (or Complete), m_errors-
206 // cannot be changed.-
207 QList<QQmlError> m_errors;-
208-
209 Type m_type;-
210-
211 QUrl m_url;-
212 QUrl m_finalUrl;-
213 mutable QString m_urlString;-
214 mutable QString m_finalUrlString;-
215-
216 // List of QQmlDataBlob's that are waiting for me to complete.-
217 QList<QQmlDataBlob *> m_waitingOnMe;-
218-
219 // List of QQmlDataBlob's that I am waiting for to complete.-
220 QVector<QQmlRefPointer<QQmlDataBlob>> m_waitingFor;-
221-
222 int m_redirectCount:30;-
223 bool m_inCallback:1;-
224 bool m_isDone:1;-
225};-
226-
227class QQmlTypeLoaderThread;-
228-
229class QQmlTypeLoaderQmldirContent-
230{-
231private:-
232 friend class QQmlTypeLoader;-
233-
234 void setContent(const QString &location, const QString &content);-
235 void setError(const QQmlError &);-
236-
237public:-
238 QQmlTypeLoaderQmldirContent();-
239 QQmlTypeLoaderQmldirContent(const QQmlTypeLoaderQmldirContent &) = default;-
240 QQmlTypeLoaderQmldirContent &operator=(const QQmlTypeLoaderQmldirContent &) = default;-
241-
242 bool hasContent() const { return m_hasContent; }
executed 171259 times by 141 tests: return m_hasContent;
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_parserstress
  • tst_qjsengine
  • 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
  • tst_qqmlimport
  • tst_qqmlincubator
  • tst_qqmlinfo
  • tst_qqmlinstantiator
  • ...
171259
243 bool hasError() const;-
244 QList<QQmlError> errors(const QString &uri) const;-
245-
246 QString typeNamespace() const;-
247-
248 QQmlDirComponents components() const;-
249 QQmlDirScripts scripts() const;-
250 QQmlDirPlugins plugins() const;-
251-
252 QString pluginLocation() const;-
253-
254 bool designerSupported() const;-
255-
256private:-
257 QQmlDirParser m_parser;-
258 QString m_location;-
259 bool m_hasContent = false;-
260};-
261-
262class Q_QML_PRIVATE_EXPORT QQmlTypeLoader-
263{-
264 Q_DECLARE_TR_FUNCTIONS(QQmlTypeLoader)-
265public:-
266 enum Mode { PreferSynchronous, Asynchronous, Synchronous };-
267-
268 class Q_QML_PRIVATE_EXPORT Blob : public QQmlDataBlob-
269 {-
270 public:-
271 Blob(const QUrl &url, QQmlDataBlob::Type type, QQmlTypeLoader *loader);-
272 ~Blob() override;-
273-
274 const QQmlImports &imports() const { return m_importCache; }
executed 145432 times by 142 tests: return m_importCache;
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_parserstress
  • tst_qjsengine
  • 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
  • tst_qqmlimport
  • tst_qqmlincubator
  • tst_qqmlinfo
  • tst_qqmlinstantiator
  • ...
145432
275-
276 void setCachedUnitStatus(QQmlMetaType::CachedUnitLookupError status) { m_cachedUnitStatus = status; }
executed 9660 times by 128 tests: end of block
Executed by:
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_qmlcachegen
  • tst_qmldiskcache
  • tst_qqmlapplicationengine
  • tst_qqmlbinding
  • tst_qqmlcomponent
  • tst_qqmlconnections
  • tst_qqmlconsole
  • tst_qqmlcontext
  • tst_qqmldebugjs
  • tst_qqmlecmascript
  • tst_qqmlenginecleanup
  • tst_qqmlexpression
  • tst_qqmlfileselector
  • tst_qqmlimport
  • tst_qqmlincubator
  • tst_qqmlinfo
  • tst_qqmlinstantiator
  • tst_qqmlitemmodels
  • tst_qqmllistmodel
  • tst_qqmllistmodelworkerscript
  • tst_qqmllistreference
  • ...
9660
277-
278 protected:-
279 bool addImport(const QV4::CompiledData::Import *import, QList<QQmlError> *errors);-
280-
281 bool fetchQmldir(const QUrl &url, const QV4::CompiledData::Import *import, int priority, QList<QQmlError> *errors);-
282 bool updateQmldir(const QQmlRefPointer<QQmlQmldirData> &data, const QV4::CompiledData::Import *import, QList<QQmlError> *errors);-
283-
284 private:-
285 virtual bool qmldirDataAvailable(const QQmlRefPointer<QQmlQmldirData> &, QList<QQmlError> *);-
286-
287 virtual void scriptImported(const QQmlRefPointer<QQmlScriptBlob> &, const QV4::CompiledData::Location &, const QString &, const QString &) {}-
288-
289 void dependencyComplete(QQmlDataBlob *) override;-
290-
291 protected:-
292 virtual QString stringAt(int) const { return QString(); }
never executed: return QString();
0
293-
294 bool isDebugging() const;-
295-
296 QQmlImports m_importCache;-
297 QHash<const QV4::CompiledData::Import*, int> m_unresolvedImports;-
298 QVector<QQmlRefPointer<QQmlQmldirData>> m_qmldirs;-
299 QQmlMetaType::CachedUnitLookupError m_cachedUnitStatus = QQmlMetaType::CachedUnitLookupError::NoError;-
300 };-
301-
302 QQmlTypeLoader(QQmlEngine *);-
303 ~QQmlTypeLoader();-
304-
305 QQmlImportDatabase *importDatabase() const;-
306-
307 static QUrl normalize(const QUrl &unNormalizedUrl);-
308-
309 QQmlRefPointer<QQmlTypeData> getType(const QUrl &unNormalizedUrl, Mode mode = PreferSynchronous);-
310 QQmlRefPointer<QQmlTypeData> getType(const QByteArray &, const QUrl &url, Mode mode = PreferSynchronous);-
311-
312 QQmlRefPointer<QQmlScriptBlob> getScript(const QUrl &unNormalizedUrl);-
313 QQmlRefPointer<QQmlQmldirData> getQmldir(const QUrl &);-
314-
315 QString absoluteFilePath(const QString &path);-
316 bool directoryExists(const QString &path);-
317-
318 const QQmlTypeLoaderQmldirContent qmldirContent(const QString &filePath);-
319 void setQmldirContent(const QString &filePath, const QString &content);-
320-
321 void clearCache();-
322 void trimCache();-
323-
324 bool isTypeLoaded(const QUrl &url) const;-
325 bool isScriptLoaded(const QUrl &url) const;-
326-
327 void lock() { m_mutex.lock(); }
executed 687506 times by 142 tests: end of block
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_parserstress
  • tst_qjsengine
  • 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
  • tst_qqmlimport
  • tst_qqmlincubator
  • tst_qqmlinfo
  • tst_qqmlinstantiator
  • ...
687506
328 void unlock() { m_mutex.unlock(); }
executed 687506 times by 142 tests: end of block
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_parserstress
  • tst_qjsengine
  • 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
  • tst_qqmlimport
  • tst_qqmlincubator
  • tst_qqmlinfo
  • tst_qqmlinstantiator
  • ...
687506
329-
330 void load(QQmlDataBlob *, Mode = PreferSynchronous);-
331 void loadWithStaticData(QQmlDataBlob *, const QByteArray &, Mode = PreferSynchronous);-
332 void loadWithCachedUnit(QQmlDataBlob *blob, const QV4::CompiledData::Unit *unit, Mode mode = PreferSynchronous);-
333-
334 QQmlEngine *engine() const;-
335 void initializeEngine(QQmlExtensionInterface *, const char *);-
336 void invalidate();-
337-
338#if !QT_CONFIG(qml_debug)-
339 quintptr profiler() const { return 0; }-
340 void setProfiler(quintptr) {}-
341#else-
342 QQmlProfiler *profiler() const { return m_profiler.data(); }
executed 55623 times by 142 tests: return m_profiler.data();
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_parserstress
  • tst_qjsengine
  • 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
  • tst_qqmlimport
  • tst_qqmlincubator
  • tst_qqmlinfo
  • tst_qqmlinstantiator
  • ...
55623
343 void setProfiler(QQmlProfiler *profiler);-
344#endif // QT_CONFIG(qml_debug)-
345-
346-
347private:-
348 friend class QQmlDataBlob;-
349 friend class QQmlTypeLoaderThread;-
350#if QT_CONFIG(qml_network)-
351 friend class QQmlTypeLoaderNetworkReplyProxy;-
352#endif // qml_network-
353-
354 void shutdownThread();-
355-
356 void loadThread(QQmlDataBlob *);-
357 void loadWithStaticDataThread(QQmlDataBlob *, const QByteArray &);-
358 void loadWithCachedUnitThread(QQmlDataBlob *blob, const QV4::CompiledData::Unit *unit);-
359#if QT_CONFIG(qml_network)-
360 void networkReplyFinished(QNetworkReply *);-
361 void networkReplyProgress(QNetworkReply *, qint64, qint64);-
362-
363 typedef QHash<QNetworkReply *, QQmlDataBlob *> NetworkReplies;-
364#endif-
365-
366 void setData(QQmlDataBlob *, const QByteArray &);-
367 void setData(QQmlDataBlob *, const QString &fileName);-
368 void setData(QQmlDataBlob *, const QQmlDataBlob::SourceCodeData &);-
369 void setCachedUnit(QQmlDataBlob *blob, const QV4::CompiledData::Unit *unit);-
370-
371 template<typename T>-
372 struct TypedCallback-
373 {-
374 TypedCallback(T *object, void (T::*func)(QQmlTypeData *)) : o(object), mf(func) {}
never executed: end of block
0
375-
376 static void redirect(void *arg, QQmlTypeData *type)-
377 {-
378 TypedCallback<T> *self = reinterpret_cast<TypedCallback<T> *>(arg);-
379 ((self->o)->*(self->mf))(type);-
380 }
never executed: end of block
0
381-
382 private:-
383 T *o;-
384 void (T::*mf)(QQmlTypeData *);-
385 };-
386-
387 typedef QHash<QUrl, QQmlTypeData *> TypeCache;-
388 typedef QHash<QUrl, QQmlScriptBlob *> ScriptCache;-
389 typedef QHash<QUrl, QQmlQmldirData *> QmldirCache;-
390 typedef QCache<QString, QCache<QString, bool> > ImportDirCache;-
391 typedef QStringHash<QQmlTypeLoaderQmldirContent *> ImportQmlDirCache;-
392-
393 QQmlEngine *m_engine;-
394 QQmlTypeLoaderThread *m_thread;-
395 QMutex &m_mutex;-
396-
397#if QT_CONFIG(qml_debug)-
398 QScopedPointer<QQmlProfiler> m_profiler;-
399#endif-
400-
401#if QT_CONFIG(qml_network)-
402 NetworkReplies m_networkReplies;-
403#endif-
404 TypeCache m_typeCache;-
405 int m_typeCacheTrimThreshold;-
406 ScriptCache m_scriptCache;-
407 QmldirCache m_qmldirCache;-
408 ImportDirCache m_importDirCache;-
409 ImportQmlDirCache m_importQmlDirCache;-
410-
411 template<typename Loader>-
412 void doLoad(const Loader &loader, QQmlDataBlob *blob, Mode mode);-
413 void updateTypeCacheTrimThreshold();-
414-
415 friend struct PlainLoader;-
416 friend struct CachedLoader;-
417 friend struct StaticLoader;-
418};-
419-
420class Q_AUTOTEST_EXPORT QQmlTypeData : public QQmlTypeLoader::Blob-
421{-
422 Q_DECLARE_TR_FUNCTIONS(QQmlTypeData)-
423public:-
424 struct TypeReference-
425 {-
426 TypeReference() : majorVersion(0), minorVersion(0), needsCreation(true) {}
executed 77697 times by 142 tests: end of block
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_parserstress
  • tst_qjsengine
  • 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
  • tst_qqmlimport
  • tst_qqmlincubator
  • tst_qqmlinfo
  • tst_qqmlinstantiator
  • ...
77697
427-
428 QV4::CompiledData::Location location;-
429 QQmlType type;-
430 int majorVersion;-
431 int minorVersion;-
432 QQmlRefPointer<QQmlTypeData> typeData;-
433 QString prefix; // used by CompositeSingleton types-
434 QString qualifiedName() const;-
435 bool needsCreation;-
436 };-
437-
438 struct ScriptReference-
439 {-
440 QV4::CompiledData::Location location;-
441 QString qualifier;-
442 QQmlRefPointer<QQmlScriptBlob> script;-
443 };-
444-
445private:-
446 friend class QQmlTypeLoader;-
447-
448 QQmlTypeData(const QUrl &, QQmlTypeLoader *);-
449-
450public:-
451 ~QQmlTypeData() override;-
452-
453 const QList<ScriptReference> &resolvedScripts() const;-
454-
455 QV4::CompiledData::CompilationUnit *compilationUnit() const;-
456-
457 // Used by QQmlComponent to get notifications-
458 struct TypeDataCallback {-
459 virtual ~TypeDataCallback();-
460 virtual void typeDataProgress(QQmlTypeData *, qreal) {}-
461 virtual void typeDataReady(QQmlTypeData *) {}-
462 };-
463 void registerCallback(TypeDataCallback *);-
464 void unregisterCallback(TypeDataCallback *);-
465-
466protected:-
467 void done() override;-
468 void completed() override;-
469 void dataReceived(const SourceCodeData &) override;-
470 void initializeFromCachedUnit(const QV4::CompiledData::Unit *unit) override;-
471 void allDependenciesDone() override;-
472 void downloadProgressChanged(qreal) override;-
473-
474 QString stringAt(int index) const override;-
475-
476private:-
477 bool tryLoadFromDiskCache();-
478 bool loadFromSource();-
479 void restoreIR(QQmlRefPointer<QV4::CompiledData::CompilationUnit> unit);-
480 void continueLoadFromIR();-
481 void resolveTypes();-
482 QQmlCompileError buildTypeResolutionCaches(-
483 QQmlRefPointer<QQmlTypeNameCache> *typeNameCache,-
484 QV4::CompiledData::ResolvedTypeReferenceMap *resolvedTypeCache-
485 ) const;-
486 void compile(const QQmlRefPointer<QQmlTypeNameCache> &typeNameCache,-
487 const QV4::CompiledData::ResolvedTypeReferenceMap &resolvedTypeCache, const QV4::CompiledData::DependentTypesHasher &dependencyHasher);-
488 void createTypeAndPropertyCaches(const QQmlRefPointer<QQmlTypeNameCache> &typeNameCache,-
489 const QV4::CompiledData::ResolvedTypeReferenceMap &resolvedTypeCache);-
490 bool resolveType(const QString &typeName, int &majorVersion, int &minorVersion,-
491 TypeReference &ref, int lineNumber = -1, int columnNumber = -1,-
492 bool reportErrors = true,-
493 QQmlType::RegistrationType registrationType = QQmlType::AnyRegistrationType);-
494-
495 void scriptImported(const QQmlRefPointer<QQmlScriptBlob> &blob, const QV4::CompiledData::Location &location, const QString &qualifier, const QString &nameSpace) override;-
496-
497-
498 SourceCodeData m_backupSourceCode; // used when cache verification fails.-
499 QScopedPointer<QmlIR::Document> m_document;-
500 QV4::CompiledData::TypeReferenceMap m_typeReferences;-
501-
502 QList<ScriptReference> m_scripts;-
503-
504 QSet<QString> m_namespaces;-
505 QList<TypeReference> m_compositeSingletons;-
506-
507 // map from name index to resolved type-
508 // While this could be a hash, a map is chosen here to provide a stable-
509 // order, which is used to calculating a check-sum on dependent meta-objects.-
510 QMap<int, TypeReference> m_resolvedTypes;-
511 bool m_typesResolved:1;-
512-
513 QQmlRefPointer<QV4::CompiledData::CompilationUnit> m_compiledData;-
514-
515 QList<TypeDataCallback *> m_callbacks;-
516-
517 bool m_implicitImportLoaded;-
518 bool loadImplicitImport();-
519};-
520-
521// QQmlScriptData instances are created, uninitialized, by the loader in the-
522// load thread. The first time they are used by the VME, they are initialized which-
523// creates their v8 objects and they are referenced and added to the engine's cleanup-
524// list. During QQmlCleanup::clear() all v8 resources are destroyed, and the-
525// reference that was created is released but final deletion only occurs once all the-
526// references as released. This is all intended to ensure that the v8 resources are-
527// only created and destroyed in the main thread :)-
528class Q_AUTOTEST_EXPORT QQmlScriptData : public QQmlCleanup, public QQmlRefCount-
529{-
530private:-
531 friend class QQmlTypeLoader;-
532-
533 QQmlScriptData();-
534-
535public:-
536 ~QQmlScriptData() override;-
537-
538 QUrl url;-
539 QString urlString;-
540 QQmlTypeNameCache *typeNameCache;-
541 QVector<QQmlRefPointer<QQmlScriptBlob>> scripts;-
542-
543 QV4::ReturnedValue scriptValueForContext(QQmlContextData *parentCtxt);-
544-
545protected:-
546 void clear() override; // From QQmlCleanup-
547-
548private:-
549 friend class QQmlScriptBlob;-
550-
551 void initialize(QQmlEngine *);-
552-
553 bool m_loaded;-
554 QQmlRefPointer<QV4::CompiledData::CompilationUnit> m_precompiledScript;-
555 QV4::Script *m_program;-
556 QV4::PersistentValue m_value;-
557};-
558-
559class Q_AUTOTEST_EXPORT QQmlScriptBlob : public QQmlTypeLoader::Blob-
560{-
561private:-
562 friend class QQmlTypeLoader;-
563-
564 QQmlScriptBlob(const QUrl &, QQmlTypeLoader *);-
565-
566public:-
567 ~QQmlScriptBlob() override;-
568-
569 struct ScriptReference-
570 {-
571 QV4::CompiledData::Location location;-
572 QString qualifier;-
573 QString nameSpace;-
574 QQmlRefPointer<QQmlScriptBlob> script;-
575 };-
576-
577 QQmlRefPointer<QQmlScriptData> scriptData() const;-
578-
579protected:-
580 void dataReceived(const SourceCodeData &) override;-
581 void initializeFromCachedUnit(const QV4::CompiledData::Unit *unit) override;-
582 void done() override;-
583-
584 QString stringAt(int index) const override;-
585-
586private:-
587 void scriptImported(const QQmlRefPointer<QQmlScriptBlob> &blob, const QV4::CompiledData::Location &location, const QString &qualifier, const QString &nameSpace) override;-
588 void initializeFromCompilationUnit(const QQmlRefPointer<QV4::CompiledData::CompilationUnit> &unit);-
589-
590 QList<ScriptReference> m_scripts;-
591 QQmlRefPointer<QQmlScriptData> m_scriptData;-
592};-
593-
594class Q_AUTOTEST_EXPORT QQmlQmldirData : public QQmlTypeLoader::Blob-
595{-
596private:-
597 friend class QQmlTypeLoader;-
598-
599 QQmlQmldirData(const QUrl &, QQmlTypeLoader *);-
600-
601public:-
602 const QString &content() const;-
603-
604 const QV4::CompiledData::Import *import(QQmlTypeLoader::Blob *) const;-
605 void setImport(QQmlTypeLoader::Blob *, const QV4::CompiledData::Import *);-
606-
607 int priority(QQmlTypeLoader::Blob *) const;-
608 void setPriority(QQmlTypeLoader::Blob *, int);-
609-
610protected:-
611 void dataReceived(const SourceCodeData &) override;-
612 void initializeFromCachedUnit(const QV4::CompiledData::Unit *) override;-
613-
614private:-
615 QString m_content;-
616 QHash<QQmlTypeLoader::Blob *, const QV4::CompiledData::Import *> m_imports;-
617 QHash<QQmlTypeLoader::Blob *, int> m_priorities;-
618};-
619-
620-
621QT_END_NAMESPACE-
622-
623#endif // QQMLTYPELOADER_P_H-
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