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 |
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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 |
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34 | ** https://www.gnu.org/licenses/gpl-3.0.html. |
35 | ** |
36 | ** $QT_END_LICENSE$ |
37 | ** |
38 | ****************************************************************************/ |
39 | #include <qv4engine_p.h> |
40 | |
41 | #include <private/qv4compileddata_p.h> |
42 | #include <private/qv4codegen_p.h> |
43 | #include <private/qqmljsdiagnosticmessage_p.h> |
44 | |
45 | #include <QtCore/QTextStream> |
46 | #include <QtCore/private/qvariant_p.h> |
47 | #include <QDateTime> |
48 | #include <QDir> |
49 | #include <QFileInfo> |
50 | #include <QLoggingCategory> |
51 | #if QT_CONFIG(regularexpression) |
52 | #include <QRegularExpression> |
53 | #endif |
54 | |
55 | #include <qv4qmlcontext_p.h> |
56 | #include <qv4value_p.h> |
57 | #include <qv4object_p.h> |
58 | #include <qv4objectproto_p.h> |
59 | #include <qv4objectiterator_p.h> |
60 | #include <qv4setiterator_p.h> |
61 | #include <qv4mapiterator_p.h> |
62 | #include <qv4arrayiterator_p.h> |
63 | #include <qv4arrayobject_p.h> |
64 | #include <qv4booleanobject_p.h> |
65 | #include <qv4globalobject_p.h> |
66 | #include <qv4errorobject_p.h> |
67 | #include <qv4functionobject_p.h> |
68 | #include "qv4function_p.h" |
69 | #include <qv4mathobject_p.h> |
70 | #include <qv4numberobject_p.h> |
71 | #include <qv4regexpobject_p.h> |
72 | #include <qv4regexp_p.h> |
73 | #include "qv4symbol_p.h" |
74 | #include "qv4setobject_p.h" |
75 | #include "qv4mapobject_p.h" |
76 | #include <qv4variantobject_p.h> |
77 | #include <qv4runtime_p.h> |
78 | #include <private/qv4mm_p.h> |
79 | #include <qv4argumentsobject_p.h> |
80 | #include <qv4dateobject_p.h> |
81 | #include <qv4jsonobject_p.h> |
82 | #include <qv4stringobject_p.h> |
83 | #include <qv4identifiertable_p.h> |
84 | #include "qv4debugging_p.h" |
85 | #include "qv4profiling_p.h" |
86 | #include "qv4executableallocator_p.h" |
87 | #include "qv4iterator_p.h" |
88 | #include "qv4stringiterator_p.h" |
89 | #include "qv4generatorobject_p.h" |
90 | #include "qv4reflect_p.h" |
91 | #include "qv4proxy_p.h" |
92 | #include "qv4stackframe_p.h" |
93 | #include "qv4atomics_p.h" |
94 | |
95 | #if QT_CONFIG(qml_sequence_object) |
96 | #include "qv4sequenceobject_p.h" |
97 | #endif |
98 | |
99 | #include "qv4qobjectwrapper_p.h" |
100 | #include "qv4memberdata_p.h" |
101 | #include "qv4arraybuffer_p.h" |
102 | #include "qv4dataview_p.h" |
103 | #include "qv4promiseobject_p.h" |
104 | #include "qv4typedarray_p.h" |
105 | #include <private/qjsvalue_p.h> |
106 | #include <private/qqmltypewrapper_p.h> |
107 | #include <private/qqmlvaluetypewrapper_p.h> |
108 | #include <private/qqmlvaluetype_p.h> |
109 | #include <private/qqmllistwrapper_p.h> |
110 | #include <private/qqmllist_p.h> |
111 | #include <private/qqmltypeloader_p.h> |
112 | #include <private/qqmlbuiltinfunctions_p.h> |
113 | #if QT_CONFIG(qml_locale) |
114 | #include <private/qqmllocale_p.h> |
115 | #endif |
116 | #if QT_CONFIG(qml_xml_http_request) |
117 | #include <private/qv4domerrors_p.h> |
118 | #include <private/qqmlxmlhttprequest_p.h> |
119 | #endif |
120 | #include <private/qv4sqlerrors_p.h> |
121 | #include <qqmlfile.h> |
122 | #include <qmetatype.h> |
123 | |
124 | #if USE(PTHREADS) |
125 | # include <pthread.h> |
126 | #if !defined(Q_OS_INTEGRITY) |
127 | # include <sys/resource.h> |
128 | #endif |
129 | #if HAVE(PTHREAD_NP_H) |
130 | # include <pthread_np.h> |
131 | #endif |
132 | #endif |
133 | |
134 | #ifdef V4_USE_VALGRIND |
135 | #include <valgrind/memcheck.h> |
136 | #endif |
137 | |
138 | Q_DECLARE_METATYPE(QList<int>) |
139 | |
140 | QT_BEGIN_NAMESPACE |
141 | |
142 | using namespace QV4; |
143 | |
144 | static QBasicAtomicInt engineSerial = Q_BASIC_ATOMIC_INITIALIZER(1); |
145 | |
146 | ReturnedValue throwTypeError(const FunctionObject *b, const QV4::Value *, const QV4::Value *, int) |
147 | { |
148 | return b->engine()->throwTypeError(); |
149 | } |
150 | |
151 | qint32 ExecutionEngine::maxCallDepth = -1; |
152 | |
153 | template <typename ReturnType> |
154 | ReturnType convertJSValueToVariantType(const QJSValue &value) |
155 | { |
156 | return value.toVariant().value<ReturnType>(); |
157 | } |
158 | |
159 | static void saveJSValue(QDataStream &stream, const void *data) |
160 | { |
161 | const QJSValue *jsv = reinterpret_cast<const QJSValue *>(data); |
162 | quint32 isNullOrUndefined = 0; |
163 | if (jsv->isNull()) |
164 | isNullOrUndefined |= 0x1; |
165 | if (jsv->isUndefined()) |
166 | isNullOrUndefined |= 0x2; |
167 | stream << isNullOrUndefined; |
168 | if (!isNullOrUndefined) |
169 | reinterpret_cast<const QJSValue*>(data)->toVariant().save(ds&: stream); |
170 | } |
171 | |
172 | static void restoreJSValue(QDataStream &stream, void *data) |
173 | { |
174 | QJSValue *jsv = reinterpret_cast<QJSValue*>(data); |
175 | |
176 | quint32 isNullOrUndefined; |
177 | stream >> isNullOrUndefined; |
178 | |
179 | if (isNullOrUndefined & 0x1) { |
180 | *jsv = QJSValue(QJSValue::NullValue); |
181 | } else if (isNullOrUndefined & 0x2) { |
182 | *jsv = QJSValue(); |
183 | } else { |
184 | QVariant v; |
185 | v.load(ds&: stream); |
186 | QJSValuePrivate::setVariant(jsval: jsv, v); |
187 | } |
188 | } |
189 | |
190 | struct JSArrayIterator { |
191 | QJSValue const* data; |
192 | quint32 index; |
193 | }; |
194 | |
195 | namespace { |
196 | void createNewIteratorIfNonExisting(void **iterator) { |
197 | if (*iterator == nullptr) |
198 | *iterator = new JSArrayIterator; |
199 | } |
200 | } |
201 | |
202 | static QtMetaTypePrivate::QSequentialIterableImpl jsvalueToSequence (const QJSValue& value) { |
203 | using namespace QtMetaTypePrivate; |
204 | |
205 | QSequentialIterableImpl iterator {}; |
206 | if (!value.isArray()) { |
207 | // set up some functions so that non-array QSequentialIterables do not crash |
208 | // but instead appear as an empty sequence |
209 | iterator._size = [](const void *) {return 0;}; |
210 | iterator._moveToBegin = [](const void *, void **) {}; |
211 | iterator._moveToEnd = [](const void *, void **) {}; |
212 | iterator._advance = [](void **, int) {}; |
213 | iterator._equalIter = [](void * const *, void * const *){return true; /*all iterators are nullptr*/}; |
214 | iterator._destroyIter = [](void **){}; |
215 | return iterator; |
216 | } |
217 | |
218 | iterator._iterable = &value; |
219 | iterator._iterator = nullptr; |
220 | iterator._metaType_id = qMetaTypeId<QVariant>(); |
221 | iterator._metaType_flags = QVariantConstructionFlags::ShouldDeleteVariantData; |
222 | iterator._iteratorCapabilities = RandomAccessCapability | BiDirectionalCapability | ForwardCapability; |
223 | iterator._size = [](const void *p) -> int { |
224 | return static_cast<QJSValue const *>(p)->property(name: QString::fromLatin1(str: "length" )).toInt(); |
225 | }; |
226 | /* Lifetime management notes: |
227 | * _at and _get return a pointer to a JSValue allocated via QMetaType::create |
228 | * Because we set QVariantConstructionFlags::ShouldDeleteVariantData, QSequentialIterable::at |
229 | * and QSequentialIterable::operator*() will free that memory |
230 | */ |
231 | |
232 | iterator._at = [](const void *iterable, int index) -> void const * { |
233 | auto const value = static_cast<QJSValue const *>(iterable)->property(arrayIndex: quint32(index)).toVariant(); |
234 | return QMetaType::create(type: qMetaTypeId<QVariant>(), copy: &value); |
235 | }; |
236 | iterator._moveToBegin = [](const void *iterable, void **iterator) { |
237 | createNewIteratorIfNonExisting(iterator); |
238 | auto jsArrayIterator = static_cast<JSArrayIterator *>(*iterator); |
239 | jsArrayIterator->index = 0; |
240 | jsArrayIterator->data = reinterpret_cast<QJSValue const*>(iterable); |
241 | }; |
242 | iterator._moveToEnd = [](const void *iterable, void **iterator) { |
243 | createNewIteratorIfNonExisting(iterator); |
244 | auto jsArrayIterator = static_cast<JSArrayIterator *>(*iterator); |
245 | auto length = static_cast<QJSValue const *>(iterable)->property(name: QString::fromLatin1(str: "length" )).toInt(); |
246 | jsArrayIterator->data = reinterpret_cast<QJSValue const*>(iterable); |
247 | jsArrayIterator->index = quint32(length); |
248 | }; |
249 | iterator._advance = [](void **iterator, int advanceBy) { |
250 | static_cast<JSArrayIterator *>(*iterator)->index += quint32(advanceBy); |
251 | }; |
252 | iterator._get = []( void * const *iterator, int metaTypeId, uint flags) -> VariantData { |
253 | auto const * const arrayIterator = static_cast<const JSArrayIterator *>(*iterator); |
254 | QJSValue const * const jsArray = arrayIterator->data; |
255 | auto const value = jsArray->property(arrayIndex: arrayIterator->index).toVariant(); |
256 | Q_ASSERT(flags & QVariantConstructionFlags::ShouldDeleteVariantData); |
257 | return {metaTypeId, QMetaType::create(type: qMetaTypeId<QVariant>(), copy: &value), flags}; |
258 | }; |
259 | iterator._destroyIter = [](void **iterator) { |
260 | delete static_cast<JSArrayIterator *>(*iterator); |
261 | }; |
262 | iterator._equalIter = [](void * const *p, void * const *other) { |
263 | auto this_ = static_cast<const JSArrayIterator *>(*p); |
264 | auto that_ = static_cast<const JSArrayIterator *>(*other); |
265 | return this_->index == that_->index && this_->data == that_->data; |
266 | }; |
267 | iterator._copyIter = [](void **iterator, void * const * otherIterator) { |
268 | auto *otherIter = (static_cast<JSArrayIterator const *>(*otherIterator)); |
269 | static_cast<JSArrayIterator *>(*iterator)->index = otherIter->index; |
270 | static_cast<JSArrayIterator *>(*iterator)->data = otherIter->data; |
271 | }; |
272 | return iterator; |
273 | } |
274 | |
275 | ExecutionEngine::ExecutionEngine(QJSEngine *jsEngine) |
276 | : executableAllocator(new QV4::ExecutableAllocator) |
277 | , regExpAllocator(new QV4::ExecutableAllocator) |
278 | , bumperPointerAllocator(new WTF::BumpPointerAllocator) |
279 | , jsStack(new WTF::PageAllocation) |
280 | , gcStack(new WTF::PageAllocation) |
281 | , globalCode(nullptr) |
282 | , publicEngine(jsEngine) |
283 | , m_engineId(engineSerial.fetchAndAddOrdered(valueToAdd: 1)) |
284 | , regExpCache(nullptr) |
285 | , m_multiplyWrappedQObjects(nullptr) |
286 | #if QT_CONFIG(qml_jit) |
287 | , m_canAllocateExecutableMemory(OSAllocator::canAllocateExecutableMemory()) |
288 | #endif |
289 | #if QT_CONFIG(qml_xml_http_request) |
290 | , m_xmlHttpRequestData(nullptr) |
291 | #endif |
292 | , m_qmlEngine(nullptr) |
293 | { |
294 | bool ok = false; |
295 | const int envMaxJSStackSize = qEnvironmentVariableIntValue(varName: "QV4_JS_MAX_STACK_SIZE" , ok: &ok); |
296 | if (ok && envMaxJSStackSize > 0) |
297 | m_maxJSStackSize = envMaxJSStackSize; |
298 | |
299 | const int envMaxGCStackSize = qEnvironmentVariableIntValue(varName: "QV4_GC_MAX_STACK_SIZE" , ok: &ok); |
300 | if (ok && envMaxGCStackSize > 0) |
301 | m_maxGCStackSize = envMaxGCStackSize; |
302 | |
303 | memoryManager = new QV4::MemoryManager(this); |
304 | |
305 | if (maxCallDepth == -1) { |
306 | if (qEnvironmentVariableIsSet(varName: "QV4_CRASH_ON_STACKOVERFLOW" )) { |
307 | maxCallDepth = std::numeric_limits<qint32>::max(); |
308 | } else { |
309 | ok = false; |
310 | maxCallDepth = qEnvironmentVariableIntValue(varName: "QV4_MAX_CALL_DEPTH" , ok: &ok); |
311 | if (!ok || maxCallDepth <= 0) { |
312 | #if defined(QT_NO_DEBUG) && !defined(__SANITIZE_ADDRESS__) && !__has_feature(address_sanitizer) |
313 | #ifdef Q_OS_QNX |
314 | maxCallDepth = 640; // QNX's stack is only 512k by default |
315 | #else |
316 | maxCallDepth = 1234; |
317 | #endif |
318 | #else |
319 | // no (tail call) optimization is done, so there'll be a lot mare stack frames active |
320 | maxCallDepth = 200; |
321 | #endif |
322 | } |
323 | } |
324 | } |
325 | Q_ASSERT(maxCallDepth > 0); |
326 | |
327 | // reserve space for the JS stack |
328 | // we allow it to grow to a bit more than m_maxJSStackSize, as we can overshoot due to ScopedValues |
329 | // allocated outside of JIT'ed methods. |
330 | *jsStack = WTF::PageAllocation::allocate(size: m_maxJSStackSize + 256*1024, usage: WTF::OSAllocator::JSVMStackPages, |
331 | /* writable */ true, /* executable */ false, |
332 | /* includesGuardPages */ true); |
333 | jsStackBase = (Value *)jsStack->base(); |
334 | #ifdef V4_USE_VALGRIND |
335 | VALGRIND_MAKE_MEM_UNDEFINED(jsStackBase, m_maxJSStackSize + 256*1024); |
336 | #endif |
337 | |
338 | jsStackTop = jsStackBase; |
339 | |
340 | *gcStack = WTF::PageAllocation::allocate(size: m_maxGCStackSize, usage: WTF::OSAllocator::JSVMStackPages, |
341 | /* writable */ true, /* executable */ false, |
342 | /* includesGuardPages */ true); |
343 | |
344 | { |
345 | ok = false; |
346 | jitCallCountThreshold = qEnvironmentVariableIntValue(varName: "QV4_JIT_CALL_THRESHOLD" , ok: &ok); |
347 | if (!ok) |
348 | jitCallCountThreshold = 3; |
349 | if (qEnvironmentVariableIsSet(varName: "QV4_FORCE_INTERPRETER" )) |
350 | jitCallCountThreshold = std::numeric_limits<int>::max(); |
351 | } |
352 | |
353 | exceptionValue = jsAlloca(nValues: 1); |
354 | *exceptionValue = Encode::undefined(); |
355 | globalObject = static_cast<Object *>(jsAlloca(nValues: 1)); |
356 | jsObjects = jsAlloca(nValues: NJSObjects); |
357 | typedArrayPrototype = static_cast<Object *>(jsAlloca(nValues: NTypedArrayTypes)); |
358 | typedArrayCtors = static_cast<FunctionObject *>(jsAlloca(nValues: NTypedArrayTypes)); |
359 | jsStrings = jsAlloca(nValues: NJSStrings); |
360 | jsSymbols = jsAlloca(nValues: NJSSymbols); |
361 | |
362 | // set up stack limits |
363 | jsStackLimit = jsStackBase + m_maxJSStackSize/sizeof(Value); |
364 | |
365 | identifierTable = new IdentifierTable(this); |
366 | |
367 | memset(s: classes, c: 0, n: sizeof(classes)); |
368 | classes[Class_Empty] = memoryManager->allocIC<InternalClass>(); |
369 | classes[Class_Empty]->init(engine: this); |
370 | |
371 | classes[Class_MemberData] = classes[Class_Empty]->changeVTable(vt: QV4::MemberData::staticVTable()); |
372 | classes[Class_SimpleArrayData] = classes[Class_Empty]->changeVTable(vt: QV4::SimpleArrayData::staticVTable()); |
373 | classes[Class_SparseArrayData] = classes[Class_Empty]->changeVTable(vt: QV4::SparseArrayData::staticVTable()); |
374 | classes[Class_ExecutionContext] = classes[Class_Empty]->changeVTable(vt: QV4::ExecutionContext::staticVTable()); |
375 | classes[Class_CallContext] = classes[Class_Empty]->changeVTable(vt: QV4::CallContext::staticVTable()); |
376 | classes[Class_QmlContext] = classes[Class_Empty]->changeVTable(vt: QV4::QmlContext::staticVTable()); |
377 | |
378 | Scope scope(this); |
379 | Scoped<InternalClass> ic(scope); |
380 | ic = classes[Class_Empty]->changeVTable(vt: QV4::Object::staticVTable()); |
381 | jsObjects[ObjectProto] = memoryManager->allocObject<ObjectPrototype>(ic: ic->d()); |
382 | classes[Class_Object] = ic->changePrototype(proto: objectPrototype()->d()); |
383 | classes[Class_QmlContextWrapper] = classes[Class_Object]->changeVTable(vt: QV4::QQmlContextWrapper::staticVTable()); |
384 | |
385 | ic = newInternalClass(vtable: QV4::StringObject::staticVTable(), prototype: objectPrototype()); |
386 | jsObjects[StringProto] = memoryManager->allocObject<StringPrototype>(ic: ic->d(), /*init =*/ args: false); |
387 | classes[Class_String] = classes[Class_Empty]->changeVTable(vt: QV4::String::staticVTable())->changePrototype(proto: stringPrototype()->d()); |
388 | Q_ASSERT(stringPrototype()->d() && classes[Class_String]->prototype); |
389 | |
390 | jsObjects[SymbolProto] = memoryManager->allocate<SymbolPrototype>(); |
391 | classes[Class_Symbol] = classes[EngineBase::Class_Empty]->changeVTable(vt: QV4::Symbol::staticVTable())->changePrototype(proto: symbolPrototype()->d()); |
392 | |
393 | jsStrings[String_Empty] = newIdentifier(text: QString()); |
394 | jsStrings[String_undefined] = newIdentifier(QStringLiteral("undefined" )); |
395 | jsStrings[String_null] = newIdentifier(QStringLiteral("null" )); |
396 | jsStrings[String_true] = newIdentifier(QStringLiteral("true" )); |
397 | jsStrings[String_false] = newIdentifier(QStringLiteral("false" )); |
398 | jsStrings[String_boolean] = newIdentifier(QStringLiteral("boolean" )); |
399 | jsStrings[String_number] = newIdentifier(QStringLiteral("number" )); |
400 | jsStrings[String_string] = newIdentifier(QStringLiteral("string" )); |
401 | jsStrings[String_default] = newIdentifier(QStringLiteral("default" )); |
402 | jsStrings[String_symbol] = newIdentifier(QStringLiteral("symbol" )); |
403 | jsStrings[String_object] = newIdentifier(QStringLiteral("object" )); |
404 | jsStrings[String_function] = newIdentifier(QStringLiteral("function" )); |
405 | jsStrings[String_length] = newIdentifier(QStringLiteral("length" )); |
406 | jsStrings[String_prototype] = newIdentifier(QStringLiteral("prototype" )); |
407 | jsStrings[String_constructor] = newIdentifier(QStringLiteral("constructor" )); |
408 | jsStrings[String_arguments] = newIdentifier(QStringLiteral("arguments" )); |
409 | jsStrings[String_caller] = newIdentifier(QStringLiteral("caller" )); |
410 | jsStrings[String_callee] = newIdentifier(QStringLiteral("callee" )); |
411 | jsStrings[String_this] = newIdentifier(QStringLiteral("this" )); |
412 | jsStrings[String___proto__] = newIdentifier(QStringLiteral("__proto__" )); |
413 | jsStrings[String_enumerable] = newIdentifier(QStringLiteral("enumerable" )); |
414 | jsStrings[String_configurable] = newIdentifier(QStringLiteral("configurable" )); |
415 | jsStrings[String_writable] = newIdentifier(QStringLiteral("writable" )); |
416 | jsStrings[String_value] = newIdentifier(QStringLiteral("value" )); |
417 | jsStrings[String_get] = newIdentifier(QStringLiteral("get" )); |
418 | jsStrings[String_set] = newIdentifier(QStringLiteral("set" )); |
419 | jsStrings[String_eval] = newIdentifier(QStringLiteral("eval" )); |
420 | jsStrings[String_uintMax] = newIdentifier(QStringLiteral("4294967295" )); |
421 | jsStrings[String_name] = newIdentifier(QStringLiteral("name" )); |
422 | jsStrings[String_index] = newIdentifier(QStringLiteral("index" )); |
423 | jsStrings[String_input] = newIdentifier(QStringLiteral("input" )); |
424 | jsStrings[String_toString] = newIdentifier(QStringLiteral("toString" )); |
425 | jsStrings[String_toLocaleString] = newIdentifier(QStringLiteral("toLocaleString" )); |
426 | jsStrings[String_destroy] = newIdentifier(QStringLiteral("destroy" )); |
427 | jsStrings[String_valueOf] = newIdentifier(QStringLiteral("valueOf" )); |
428 | jsStrings[String_byteLength] = newIdentifier(QStringLiteral("byteLength" )); |
429 | jsStrings[String_byteOffset] = newIdentifier(QStringLiteral("byteOffset" )); |
430 | jsStrings[String_buffer] = newIdentifier(QStringLiteral("buffer" )); |
431 | jsStrings[String_lastIndex] = newIdentifier(QStringLiteral("lastIndex" )); |
432 | jsStrings[String_next] = newIdentifier(QStringLiteral("next" )); |
433 | jsStrings[String_done] = newIdentifier(QStringLiteral("done" )); |
434 | jsStrings[String_return] = newIdentifier(QStringLiteral("return" )); |
435 | jsStrings[String_throw] = newIdentifier(QStringLiteral("throw" )); |
436 | jsStrings[String_global] = newIdentifier(QStringLiteral("global" )); |
437 | jsStrings[String_ignoreCase] = newIdentifier(QStringLiteral("ignoreCase" )); |
438 | jsStrings[String_multiline] = newIdentifier(QStringLiteral("multiline" )); |
439 | jsStrings[String_unicode] = newIdentifier(QStringLiteral("unicode" )); |
440 | jsStrings[String_sticky] = newIdentifier(QStringLiteral("sticky" )); |
441 | jsStrings[String_source] = newIdentifier(QStringLiteral("source" )); |
442 | jsStrings[String_flags] = newIdentifier(QStringLiteral("flags" )); |
443 | |
444 | jsSymbols[Symbol_hasInstance] = Symbol::create(e: this, QStringLiteral("@Symbol.hasInstance" )); |
445 | jsSymbols[Symbol_isConcatSpreadable] = Symbol::create(e: this, QStringLiteral("@Symbol.isConcatSpreadable" )); |
446 | jsSymbols[Symbol_iterator] = Symbol::create(e: this, QStringLiteral("@Symbol.iterator" )); |
447 | jsSymbols[Symbol_match] = Symbol::create(e: this, QStringLiteral("@Symbol.match" )); |
448 | jsSymbols[Symbol_replace] = Symbol::create(e: this, QStringLiteral("@Symbol.replace" )); |
449 | jsSymbols[Symbol_search] = Symbol::create(e: this, QStringLiteral("@Symbol.search" )); |
450 | jsSymbols[Symbol_species] = Symbol::create(e: this, QStringLiteral("@Symbol.species" )); |
451 | jsSymbols[Symbol_split] = Symbol::create(e: this, QStringLiteral("@Symbol.split" )); |
452 | jsSymbols[Symbol_toPrimitive] = Symbol::create(e: this, QStringLiteral("@Symbol.toPrimitive" )); |
453 | jsSymbols[Symbol_toStringTag] = Symbol::create(e: this, QStringLiteral("@Symbol.toStringTag" )); |
454 | jsSymbols[Symbol_unscopables] = Symbol::create(e: this, QStringLiteral("@Symbol.unscopables" )); |
455 | jsSymbols[Symbol_revokableProxy] = Symbol::create(e: this, QStringLiteral("@Proxy.revokableProxy" )); |
456 | |
457 | ic = newInternalClass(vtable: ArrayPrototype::staticVTable(), prototype: objectPrototype()); |
458 | Q_ASSERT(ic->d()->prototype); |
459 | ic = ic->addMember(identifier: id_length()->propertyKey(), data: Attr_NotConfigurable|Attr_NotEnumerable); |
460 | Q_ASSERT(ic->d()->prototype); |
461 | jsObjects[ArrayProto] = memoryManager->allocObject<ArrayPrototype>(ic: ic->d()); |
462 | classes[Class_ArrayObject] = ic->changePrototype(proto: arrayPrototype()->d()); |
463 | jsObjects[PropertyListProto] = memoryManager->allocate<PropertyListPrototype>(); |
464 | |
465 | Scoped<InternalClass> argsClass(scope); |
466 | argsClass = newInternalClass(vtable: ArgumentsObject::staticVTable(), prototype: objectPrototype()); |
467 | argsClass = argsClass->addMember(identifier: id_length()->propertyKey(), data: Attr_NotEnumerable); |
468 | argsClass = argsClass->addMember(identifier: symbol_iterator()->propertyKey(), data: Attr_Data|Attr_NotEnumerable); |
469 | classes[Class_ArgumentsObject] = argsClass->addMember(identifier: id_callee()->propertyKey(), data: Attr_Data|Attr_NotEnumerable); |
470 | argsClass = newInternalClass(vtable: StrictArgumentsObject::staticVTable(), prototype: objectPrototype()); |
471 | argsClass = argsClass->addMember(identifier: id_length()->propertyKey(), data: Attr_NotEnumerable); |
472 | argsClass = argsClass->addMember(identifier: symbol_iterator()->propertyKey(), data: Attr_Data|Attr_NotEnumerable); |
473 | classes[Class_StrictArgumentsObject] = argsClass->addMember(identifier: id_callee()->propertyKey(), data: Attr_Accessor|Attr_NotConfigurable|Attr_NotEnumerable); |
474 | |
475 | *static_cast<Value *>(globalObject) = newObject(); |
476 | Q_ASSERT(globalObject->d()->vtable()); |
477 | initRootContext(); |
478 | |
479 | ic = newInternalClass(vtable: QV4::StringObject::staticVTable(), prototype: objectPrototype()); |
480 | ic = ic->addMember(identifier: id_length()->propertyKey(), data: Attr_ReadOnly); |
481 | classes[Class_StringObject] = ic->changePrototype(proto: stringPrototype()->d()); |
482 | Q_ASSERT(classes[Class_StringObject]->verifyIndex(id_length()->propertyKey(), Heap::StringObject::LengthPropertyIndex)); |
483 | |
484 | classes[Class_SymbolObject] = newInternalClass(vtable: QV4::SymbolObject::staticVTable(), prototype: symbolPrototype()); |
485 | |
486 | jsObjects[NumberProto] = memoryManager->allocate<NumberPrototype>(); |
487 | jsObjects[BooleanProto] = memoryManager->allocate<BooleanPrototype>(); |
488 | jsObjects[DateProto] = memoryManager->allocate<DatePrototype>(); |
489 | |
490 | #if defined(QT_NO_DEBUG) && !defined(QT_FORCE_ASSERTS) |
491 | InternalClassEntry *index = nullptr; |
492 | #else |
493 | InternalClassEntry _index; |
494 | auto *index = &_index; |
495 | #endif |
496 | ic = newInternalClass(vtable: QV4::FunctionPrototype::staticVTable(), prototype: objectPrototype()); |
497 | auto addProtoHasInstance = [&] { |
498 | // Add an invalid prototype slot, so that all function objects have the same layout |
499 | // This helps speed up instanceof operations and other things where we need to query |
500 | // prototype property (as we always know it's location) |
501 | ic = ic->addMember(identifier: id_prototype()->propertyKey(), data: Attr_Invalid, entry: index); |
502 | Q_ASSERT(index->index == Heap::FunctionObject::Index_Prototype); |
503 | // add an invalid @hasInstance slot, so that we can quickly track whether the |
504 | // hasInstance method has been reimplemented. This is required for a fast |
505 | // instanceof implementation |
506 | ic = ic->addMember(identifier: symbol_hasInstance()->propertyKey(), data: Attr_Invalid, entry: index); |
507 | Q_ASSERT(index->index == Heap::FunctionObject::Index_HasInstance); |
508 | }; |
509 | addProtoHasInstance(); |
510 | jsObjects[FunctionProto] = memoryManager->allocObject<FunctionPrototype>(ic: ic->d()); |
511 | ic = newInternalClass(vtable: FunctionObject::staticVTable(), prototype: functionPrototype()); |
512 | addProtoHasInstance(); |
513 | classes[Class_FunctionObject] = ic->d(); |
514 | ic = ic->addMember(identifier: id_name()->propertyKey(), data: Attr_ReadOnly, entry: index); |
515 | Q_ASSERT(index->index == Heap::ArrowFunction::Index_Name); |
516 | ic = ic->addMember(identifier: id_length()->propertyKey(), data: Attr_ReadOnly_ButConfigurable, entry: index); |
517 | Q_ASSERT(index->index == Heap::ArrowFunction::Index_Length); |
518 | classes[Class_ArrowFunction] = ic->changeVTable(vt: ArrowFunction::staticVTable()); |
519 | ic = ic->changeVTable(vt: MemberFunction::staticVTable()); |
520 | classes[Class_MemberFunction] = ic->d(); |
521 | ic = ic->changeVTable(vt: GeneratorFunction::staticVTable()); |
522 | classes[Class_GeneratorFunction] = ic->d(); |
523 | ic = ic->changeVTable(vt: MemberGeneratorFunction::staticVTable()); |
524 | classes[Class_MemberGeneratorFunction] = ic->d(); |
525 | |
526 | ic = ic->changeMember(identifier: id_prototype()->propertyKey(), data: Attr_NotConfigurable|Attr_NotEnumerable); |
527 | ic = ic->changeVTable(vt: ScriptFunction::staticVTable()); |
528 | classes[Class_ScriptFunction] = ic->d(); |
529 | ic = ic->changeVTable(vt: ConstructorFunction::staticVTable()); |
530 | classes[Class_ConstructorFunction] = ic->d(); |
531 | |
532 | classes[Class_ObjectProto] = classes[Class_Object]->addMember(identifier: id_constructor()->propertyKey(), data: Attr_NotEnumerable, entry: index); |
533 | Q_ASSERT(index->index == Heap::FunctionObject::Index_ProtoConstructor); |
534 | |
535 | jsObjects[GeneratorProto] = memoryManager->allocObject<GeneratorPrototype>(ic: classes[Class_Object]); |
536 | classes[Class_GeneratorObject] = newInternalClass(vtable: QV4::GeneratorObject::staticVTable(), prototype: generatorPrototype()); |
537 | |
538 | ScopedString str(scope); |
539 | classes[Class_RegExp] = classes[Class_Empty]->changeVTable(vt: QV4::RegExp::staticVTable()); |
540 | ic = newInternalClass(vtable: QV4::RegExpObject::staticVTable(), prototype: objectPrototype()); |
541 | ic = ic->addMember(identifier: id_lastIndex()->propertyKey(), data: Attr_NotEnumerable|Attr_NotConfigurable, entry: index); |
542 | Q_ASSERT(index->index == RegExpObject::Index_LastIndex); |
543 | jsObjects[RegExpProto] = memoryManager->allocObject<RegExpPrototype>(ic: classes[Class_Object]); |
544 | classes[Class_RegExpObject] = ic->changePrototype(proto: regExpPrototype()->d()); |
545 | |
546 | ic = classes[Class_ArrayObject]->addMember(identifier: id_index()->propertyKey(), data: Attr_Data, entry: index); |
547 | Q_ASSERT(index->index == RegExpObject::Index_ArrayIndex); |
548 | classes[Class_RegExpExecArray] = ic->addMember(identifier: id_input()->propertyKey(), data: Attr_Data, entry: index); |
549 | Q_ASSERT(index->index == RegExpObject::Index_ArrayInput); |
550 | |
551 | ic = newInternalClass(vtable: ErrorObject::staticVTable(), prototype: nullptr); |
552 | ic = ic->addMember(identifier: (str = newIdentifier(QStringLiteral("stack" )))->propertyKey(), data: Attr_Accessor|Attr_NotConfigurable|Attr_NotEnumerable, entry: index); |
553 | Q_ASSERT(index->index == ErrorObject::Index_Stack); |
554 | Q_ASSERT(index->setterIndex == ErrorObject::Index_StackSetter); |
555 | ic = ic->addMember(identifier: (str = newIdentifier(QStringLiteral("fileName" )))->propertyKey(), data: Attr_Data|Attr_NotEnumerable, entry: index); |
556 | Q_ASSERT(index->index == ErrorObject::Index_FileName); |
557 | ic = ic->addMember(identifier: (str = newIdentifier(QStringLiteral("lineNumber" )))->propertyKey(), data: Attr_Data|Attr_NotEnumerable, entry: index); |
558 | classes[Class_ErrorObject] = ic->d(); |
559 | Q_ASSERT(index->index == ErrorObject::Index_LineNumber); |
560 | classes[Class_ErrorObjectWithMessage] = ic->addMember(identifier: (str = newIdentifier(QStringLiteral("message" )))->propertyKey(), data: Attr_Data|Attr_NotEnumerable, entry: index); |
561 | Q_ASSERT(index->index == ErrorObject::Index_Message); |
562 | ic = newInternalClass(vtable: Object::staticVTable(), prototype: objectPrototype()); |
563 | ic = ic->addMember(identifier: id_constructor()->propertyKey(), data: Attr_Data|Attr_NotEnumerable, entry: index); |
564 | Q_ASSERT(index->index == ErrorPrototype::Index_Constructor); |
565 | ic = ic->addMember(identifier: (str = newIdentifier(QStringLiteral("message" )))->propertyKey(), data: Attr_Data|Attr_NotEnumerable, entry: index); |
566 | Q_ASSERT(index->index == ErrorPrototype::Index_Message); |
567 | classes[Class_ErrorProto] = ic->addMember(identifier: id_name()->propertyKey(), data: Attr_Data|Attr_NotEnumerable, entry: index); |
568 | Q_ASSERT(index->index == ErrorPrototype::Index_Name); |
569 | |
570 | classes[Class_ProxyObject] = classes[Class_Empty]->changeVTable(vt: ProxyObject::staticVTable()); |
571 | classes[Class_ProxyFunctionObject] = classes[Class_Empty]->changeVTable(vt: ProxyFunctionObject::staticVTable()); |
572 | |
573 | jsObjects[GetStack_Function] = FunctionObject::createBuiltinFunction(engine: this, nameOrSymbol: str = newIdentifier(QStringLiteral("stack" )), code: ErrorObject::method_get_stack, argumentCount: 0); |
574 | |
575 | jsObjects[ErrorProto] = memoryManager->allocObject<ErrorPrototype>(ic: classes[Class_ErrorProto]); |
576 | ic = classes[Class_ErrorProto]->changePrototype(proto: errorPrototype()->d()); |
577 | jsObjects[EvalErrorProto] = memoryManager->allocObject<EvalErrorPrototype>(ic: ic->d()); |
578 | jsObjects[RangeErrorProto] = memoryManager->allocObject<RangeErrorPrototype>(ic: ic->d()); |
579 | jsObjects[ReferenceErrorProto] = memoryManager->allocObject<ReferenceErrorPrototype>(ic: ic->d()); |
580 | jsObjects[SyntaxErrorProto] = memoryManager->allocObject<SyntaxErrorPrototype>(ic: ic->d()); |
581 | jsObjects[TypeErrorProto] = memoryManager->allocObject<TypeErrorPrototype>(ic: ic->d()); |
582 | jsObjects[URIErrorProto] = memoryManager->allocObject<URIErrorPrototype>(ic: ic->d()); |
583 | |
584 | jsObjects[VariantProto] = memoryManager->allocate<VariantPrototype>(); |
585 | Q_ASSERT(variantPrototype()->getPrototypeOf() == objectPrototype()->d()); |
586 | |
587 | #if QT_CONFIG(qml_sequence_object) |
588 | ic = newInternalClass(vtable: SequencePrototype::staticVTable(), prototype: SequencePrototype::defaultPrototype(e: this)); |
589 | jsObjects[SequenceProto] = ScopedValue(scope, memoryManager->allocObject<SequencePrototype>(ic: ic->d())); |
590 | #endif |
591 | |
592 | ExecutionContext *global = rootContext(); |
593 | |
594 | jsObjects[Object_Ctor] = memoryManager->allocate<ObjectCtor>(args: global); |
595 | jsObjects[String_Ctor] = memoryManager->allocate<StringCtor>(args: global); |
596 | jsObjects[Symbol_Ctor] = memoryManager->allocate<SymbolCtor>(args: global); |
597 | jsObjects[Number_Ctor] = memoryManager->allocate<NumberCtor>(args: global); |
598 | jsObjects[Boolean_Ctor] = memoryManager->allocate<BooleanCtor>(args: global); |
599 | jsObjects[Array_Ctor] = memoryManager->allocate<ArrayCtor>(args: global); |
600 | jsObjects[Function_Ctor] = memoryManager->allocate<FunctionCtor>(args: global); |
601 | jsObjects[GeneratorFunction_Ctor] = memoryManager->allocate<GeneratorFunctionCtor>(args: global); |
602 | jsObjects[Date_Ctor] = memoryManager->allocate<DateCtor>(args: global); |
603 | jsObjects[RegExp_Ctor] = memoryManager->allocate<RegExpCtor>(args: global); |
604 | jsObjects[Error_Ctor] = memoryManager->allocate<ErrorCtor>(args: global); |
605 | jsObjects[EvalError_Ctor] = memoryManager->allocate<EvalErrorCtor>(args: global); |
606 | jsObjects[RangeError_Ctor] = memoryManager->allocate<RangeErrorCtor>(args: global); |
607 | jsObjects[ReferenceError_Ctor] = memoryManager->allocate<ReferenceErrorCtor>(args: global); |
608 | jsObjects[SyntaxError_Ctor] = memoryManager->allocate<SyntaxErrorCtor>(args: global); |
609 | jsObjects[TypeError_Ctor] = memoryManager->allocate<TypeErrorCtor>(args: global); |
610 | jsObjects[URIError_Ctor] = memoryManager->allocate<URIErrorCtor>(args: global); |
611 | jsObjects[IteratorProto] = memoryManager->allocate<IteratorPrototype>(); |
612 | |
613 | ic = newInternalClass(vtable: ForInIteratorPrototype::staticVTable(), prototype: iteratorPrototype()); |
614 | jsObjects[ForInIteratorProto] = memoryManager->allocObject<ForInIteratorPrototype>(ic); |
615 | ic = newInternalClass(vtable: SetIteratorPrototype::staticVTable(), prototype: iteratorPrototype()); |
616 | jsObjects[MapIteratorProto] = memoryManager->allocObject<MapIteratorPrototype>(ic); |
617 | ic = newInternalClass(vtable: SetIteratorPrototype::staticVTable(), prototype: iteratorPrototype()); |
618 | jsObjects[SetIteratorProto] = memoryManager->allocObject<SetIteratorPrototype>(ic); |
619 | ic = newInternalClass(vtable: ArrayIteratorPrototype::staticVTable(), prototype: iteratorPrototype()); |
620 | jsObjects[ArrayIteratorProto] = memoryManager->allocObject<ArrayIteratorPrototype>(ic); |
621 | ic = newInternalClass(vtable: StringIteratorPrototype::staticVTable(), prototype: iteratorPrototype()); |
622 | jsObjects[StringIteratorProto] = memoryManager->allocObject<StringIteratorPrototype>(ic); |
623 | |
624 | str = newString(QStringLiteral("get [Symbol.species]" )); |
625 | jsObjects[GetSymbolSpecies] = FunctionObject::createBuiltinFunction(engine: this, nameOrSymbol: str, code: ArrayPrototype::method_get_species, argumentCount: 0); |
626 | |
627 | static_cast<ObjectPrototype *>(objectPrototype())->init(engine: this, ctor: objectCtor()); |
628 | static_cast<StringPrototype *>(stringPrototype())->init(engine: this, ctor: stringCtor()); |
629 | static_cast<SymbolPrototype *>(symbolPrototype())->init(engine: this, ctor: symbolCtor()); |
630 | static_cast<NumberPrototype *>(numberPrototype())->init(engine: this, ctor: numberCtor()); |
631 | static_cast<BooleanPrototype *>(booleanPrototype())->init(engine: this, ctor: booleanCtor()); |
632 | static_cast<ArrayPrototype *>(arrayPrototype())->init(engine: this, ctor: arrayCtor()); |
633 | static_cast<PropertyListPrototype *>(propertyListPrototype())->init(engine: this); |
634 | static_cast<DatePrototype *>(datePrototype())->init(engine: this, ctor: dateCtor()); |
635 | static_cast<FunctionPrototype *>(functionPrototype())->init(engine: this, ctor: functionCtor()); |
636 | static_cast<GeneratorPrototype *>(generatorPrototype())->init(engine: this, ctor: generatorFunctionCtor()); |
637 | static_cast<RegExpPrototype *>(regExpPrototype())->init(engine: this, ctor: regExpCtor()); |
638 | static_cast<ErrorPrototype *>(errorPrototype())->init(engine: this, ctor: errorCtor()); |
639 | static_cast<EvalErrorPrototype *>(evalErrorPrototype())->init(engine: this, ctor: evalErrorCtor()); |
640 | static_cast<RangeErrorPrototype *>(rangeErrorPrototype())->init(engine: this, ctor: rangeErrorCtor()); |
641 | static_cast<ReferenceErrorPrototype *>(referenceErrorPrototype())->init(engine: this, ctor: referenceErrorCtor()); |
642 | static_cast<SyntaxErrorPrototype *>(syntaxErrorPrototype())->init(engine: this, ctor: syntaxErrorCtor()); |
643 | static_cast<TypeErrorPrototype *>(typeErrorPrototype())->init(engine: this, ctor: typeErrorCtor()); |
644 | static_cast<URIErrorPrototype *>(uRIErrorPrototype())->init(engine: this, ctor: uRIErrorCtor()); |
645 | |
646 | static_cast<IteratorPrototype *>(iteratorPrototype())->init(engine: this); |
647 | static_cast<ForInIteratorPrototype *>(forInIteratorPrototype())->init(engine: this); |
648 | static_cast<MapIteratorPrototype *>(mapIteratorPrototype())->init(engine: this); |
649 | static_cast<SetIteratorPrototype *>(setIteratorPrototype())->init(engine: this); |
650 | static_cast<ArrayIteratorPrototype *>(arrayIteratorPrototype())->init(engine: this); |
651 | static_cast<StringIteratorPrototype *>(stringIteratorPrototype())->init(engine: this); |
652 | |
653 | static_cast<VariantPrototype *>(variantPrototype())->init(); |
654 | |
655 | #if QT_CONFIG(qml_sequence_object) |
656 | sequencePrototype()->cast<SequencePrototype>()->init(); |
657 | #endif |
658 | |
659 | jsObjects[WeakMap_Ctor] = memoryManager->allocate<WeakMapCtor>(args: global); |
660 | jsObjects[WeakMapProto] = memoryManager->allocate<WeakMapPrototype>(); |
661 | static_cast<WeakMapPrototype *>(weakMapPrototype())->init(engine: this, ctor: weakMapCtor()); |
662 | |
663 | jsObjects[Map_Ctor] = memoryManager->allocate<MapCtor>(args: global); |
664 | jsObjects[MapProto] = memoryManager->allocate<MapPrototype>(); |
665 | static_cast<MapPrototype *>(mapPrototype())->init(engine: this, ctor: mapCtor()); |
666 | |
667 | jsObjects[WeakSet_Ctor] = memoryManager->allocate<WeakSetCtor>(args: global); |
668 | jsObjects[WeakSetProto] = memoryManager->allocate<WeakSetPrototype>(); |
669 | static_cast<WeakSetPrototype *>(weakSetPrototype())->init(engine: this, ctor: weakSetCtor()); |
670 | |
671 | jsObjects[Set_Ctor] = memoryManager->allocate<SetCtor>(args: global); |
672 | jsObjects[SetProto] = memoryManager->allocate<SetPrototype>(); |
673 | static_cast<SetPrototype *>(setPrototype())->init(engine: this, ctor: setCtor()); |
674 | |
675 | // |
676 | // promises |
677 | // |
678 | |
679 | jsObjects[Promise_Ctor] = memoryManager->allocate<PromiseCtor>(args: global); |
680 | jsObjects[PromiseProto] = memoryManager->allocate<PromisePrototype>(); |
681 | static_cast<PromisePrototype *>(promisePrototype())->init(engine: this, ctor: promiseCtor()); |
682 | |
683 | // typed arrays |
684 | |
685 | jsObjects[SharedArrayBuffer_Ctor] = memoryManager->allocate<SharedArrayBufferCtor>(args: global); |
686 | jsObjects[SharedArrayBufferProto] = memoryManager->allocate<SharedArrayBufferPrototype>(); |
687 | static_cast<SharedArrayBufferPrototype *>(sharedArrayBufferPrototype())->init(engine: this, ctor: sharedArrayBufferCtor()); |
688 | |
689 | jsObjects[ArrayBuffer_Ctor] = memoryManager->allocate<ArrayBufferCtor>(args: global); |
690 | jsObjects[ArrayBufferProto] = memoryManager->allocate<ArrayBufferPrototype>(); |
691 | static_cast<ArrayBufferPrototype *>(arrayBufferPrototype())->init(engine: this, ctor: arrayBufferCtor()); |
692 | |
693 | jsObjects[DataView_Ctor] = memoryManager->allocate<DataViewCtor>(args: global); |
694 | jsObjects[DataViewProto] = memoryManager->allocate<DataViewPrototype>(); |
695 | static_cast<DataViewPrototype *>(dataViewPrototype())->init(engine: this, ctor: dataViewCtor()); |
696 | jsObjects[ValueTypeProto] = (Heap::Base *) nullptr; |
697 | jsObjects[SignalHandlerProto] = (Heap::Base *) nullptr; |
698 | |
699 | jsObjects[IntrinsicTypedArray_Ctor] = memoryManager->allocate<IntrinsicTypedArrayCtor>(args: global); |
700 | jsObjects[IntrinsicTypedArrayProto] = memoryManager->allocate<IntrinsicTypedArrayPrototype>(); |
701 | static_cast<IntrinsicTypedArrayPrototype *>(intrinsicTypedArrayPrototype()) |
702 | ->init(engine: this, ctor: static_cast<IntrinsicTypedArrayCtor *>(intrinsicTypedArrayCtor())); |
703 | |
704 | for (int i = 0; i < NTypedArrayTypes; ++i) { |
705 | static_cast<Value &>(typedArrayCtors[i]) = memoryManager->allocate<TypedArrayCtor>(args: global, args: Heap::TypedArray::Type(i)); |
706 | static_cast<Value &>(typedArrayPrototype[i]) = memoryManager->allocate<TypedArrayPrototype>(args: Heap::TypedArray::Type(i)); |
707 | typedArrayPrototype[i].as<TypedArrayPrototype>()->init(engine: this, ctor: static_cast<TypedArrayCtor *>(typedArrayCtors[i].as<Object>())); |
708 | } |
709 | |
710 | // |
711 | // set up the global object |
712 | // |
713 | rootContext()->d()->activation.set(e: scope.engine, newVal: globalObject->d()); |
714 | Q_ASSERT(globalObject->d()->vtable()); |
715 | |
716 | globalObject->defineDefaultProperty(QStringLiteral("Object" ), value: *objectCtor()); |
717 | globalObject->defineDefaultProperty(QStringLiteral("String" ), value: *stringCtor()); |
718 | globalObject->defineDefaultProperty(QStringLiteral("Symbol" ), value: *symbolCtor()); |
719 | FunctionObject *numberObject = numberCtor(); |
720 | globalObject->defineDefaultProperty(QStringLiteral("Number" ), value: *numberObject); |
721 | globalObject->defineDefaultProperty(QStringLiteral("Boolean" ), value: *booleanCtor()); |
722 | globalObject->defineDefaultProperty(QStringLiteral("Array" ), value: *arrayCtor()); |
723 | globalObject->defineDefaultProperty(QStringLiteral("Function" ), value: *functionCtor()); |
724 | globalObject->defineDefaultProperty(QStringLiteral("Date" ), value: *dateCtor()); |
725 | globalObject->defineDefaultProperty(QStringLiteral("RegExp" ), value: *regExpCtor()); |
726 | globalObject->defineDefaultProperty(QStringLiteral("Error" ), value: *errorCtor()); |
727 | globalObject->defineDefaultProperty(QStringLiteral("EvalError" ), value: *evalErrorCtor()); |
728 | globalObject->defineDefaultProperty(QStringLiteral("RangeError" ), value: *rangeErrorCtor()); |
729 | globalObject->defineDefaultProperty(QStringLiteral("ReferenceError" ), value: *referenceErrorCtor()); |
730 | globalObject->defineDefaultProperty(QStringLiteral("SyntaxError" ), value: *syntaxErrorCtor()); |
731 | globalObject->defineDefaultProperty(QStringLiteral("TypeError" ), value: *typeErrorCtor()); |
732 | globalObject->defineDefaultProperty(QStringLiteral("URIError" ), value: *uRIErrorCtor()); |
733 | globalObject->defineDefaultProperty(QStringLiteral("Promise" ), value: *promiseCtor()); |
734 | |
735 | globalObject->defineDefaultProperty(QStringLiteral("SharedArrayBuffer" ), value: *sharedArrayBufferCtor()); |
736 | globalObject->defineDefaultProperty(QStringLiteral("ArrayBuffer" ), value: *arrayBufferCtor()); |
737 | globalObject->defineDefaultProperty(QStringLiteral("DataView" ), value: *dataViewCtor()); |
738 | globalObject->defineDefaultProperty(QStringLiteral("WeakSet" ), value: *weakSetCtor()); |
739 | globalObject->defineDefaultProperty(QStringLiteral("Set" ), value: *setCtor()); |
740 | globalObject->defineDefaultProperty(QStringLiteral("WeakMap" ), value: *weakMapCtor()); |
741 | globalObject->defineDefaultProperty(QStringLiteral("Map" ), value: *mapCtor()); |
742 | |
743 | for (int i = 0; i < NTypedArrayTypes; ++i) |
744 | globalObject->defineDefaultProperty(name: (str = typedArrayCtors[i].as<FunctionObject>()->name()), value: typedArrayCtors[i]); |
745 | ScopedObject o(scope); |
746 | globalObject->defineDefaultProperty(QStringLiteral("Atomics" ), value: (o = memoryManager->allocate<Atomics>())); |
747 | globalObject->defineDefaultProperty(QStringLiteral("Math" ), value: (o = memoryManager->allocate<MathObject>())); |
748 | globalObject->defineDefaultProperty(QStringLiteral("JSON" ), value: (o = memoryManager->allocate<JsonObject>())); |
749 | globalObject->defineDefaultProperty(QStringLiteral("Reflect" ), value: (o = memoryManager->allocate<Reflect>())); |
750 | globalObject->defineDefaultProperty(QStringLiteral("Proxy" ), value: (o = memoryManager->allocate<Proxy>(args: rootContext()))); |
751 | |
752 | globalObject->defineReadonlyProperty(QStringLiteral("undefined" ), value: Value::undefinedValue()); |
753 | globalObject->defineReadonlyProperty(QStringLiteral("NaN" ), value: Value::fromDouble(d: std::numeric_limits<double>::quiet_NaN())); |
754 | globalObject->defineReadonlyProperty(QStringLiteral("Infinity" ), value: Value::fromDouble(Q_INFINITY)); |
755 | |
756 | |
757 | jsObjects[Eval_Function] = memoryManager->allocate<EvalFunction>(args: global); |
758 | globalObject->defineDefaultProperty(QStringLiteral("eval" ), value: *evalFunction()); |
759 | |
760 | // ES6: 20.1.2.12 & 20.1.2.13: |
761 | // parseInt and parseFloat must be the same FunctionObject on the global & |
762 | // Number object. |
763 | { |
764 | QString piString(QStringLiteral("parseInt" )); |
765 | QString pfString(QStringLiteral("parseFloat" )); |
766 | Scope scope(this); |
767 | ScopedString pi(scope, newIdentifier(text: piString)); |
768 | ScopedString pf(scope, newIdentifier(text: pfString)); |
769 | ScopedFunctionObject parseIntFn(scope, FunctionObject::createBuiltinFunction(engine: this, nameOrSymbol: pi, code: GlobalFunctions::method_parseInt, argumentCount: 2)); |
770 | ScopedFunctionObject parseFloatFn(scope, FunctionObject::createBuiltinFunction(engine: this, nameOrSymbol: pf, code: GlobalFunctions::method_parseFloat, argumentCount: 1)); |
771 | globalObject->defineDefaultProperty(name: piString, value: parseIntFn); |
772 | globalObject->defineDefaultProperty(name: pfString, value: parseFloatFn); |
773 | numberObject->defineDefaultProperty(name: piString, value: parseIntFn); |
774 | numberObject->defineDefaultProperty(name: pfString, value: parseFloatFn); |
775 | } |
776 | |
777 | globalObject->defineDefaultProperty(QStringLiteral("isNaN" ), code: GlobalFunctions::method_isNaN, argumentCount: 1); |
778 | globalObject->defineDefaultProperty(QStringLiteral("isFinite" ), code: GlobalFunctions::method_isFinite, argumentCount: 1); |
779 | globalObject->defineDefaultProperty(QStringLiteral("decodeURI" ), code: GlobalFunctions::method_decodeURI, argumentCount: 1); |
780 | globalObject->defineDefaultProperty(QStringLiteral("decodeURIComponent" ), code: GlobalFunctions::method_decodeURIComponent, argumentCount: 1); |
781 | globalObject->defineDefaultProperty(QStringLiteral("encodeURI" ), code: GlobalFunctions::method_encodeURI, argumentCount: 1); |
782 | globalObject->defineDefaultProperty(QStringLiteral("encodeURIComponent" ), code: GlobalFunctions::method_encodeURIComponent, argumentCount: 1); |
783 | globalObject->defineDefaultProperty(QStringLiteral("escape" ), code: GlobalFunctions::method_escape, argumentCount: 1); |
784 | globalObject->defineDefaultProperty(QStringLiteral("unescape" ), code: GlobalFunctions::method_unescape, argumentCount: 1); |
785 | |
786 | ScopedFunctionObject t(scope, memoryManager->allocate<FunctionObject>(args: rootContext(), args: nullptr, args: ::throwTypeError)); |
787 | t->defineReadonlyProperty(name: id_length(), value: Value::fromInt32(i: 0)); |
788 | t->setInternalClass(t->internalClass()->cryopreserved()); |
789 | jsObjects[ThrowerObject] = t; |
790 | |
791 | ScopedProperty pd(scope); |
792 | pd->value = thrower(); |
793 | pd->set = thrower(); |
794 | functionPrototype()->insertMember(s: id_caller(), p: pd, attributes: Attr_Accessor|Attr_ReadOnly_ButConfigurable); |
795 | functionPrototype()->insertMember(s: id_arguments(), p: pd, attributes: Attr_Accessor|Attr_ReadOnly_ButConfigurable); |
796 | |
797 | qMetaTypeId<QJSValue>(); |
798 | qMetaTypeId<QList<int> >(); |
799 | |
800 | if (!QMetaType::hasRegisteredConverterFunction<QJSValue, QVariantMap>()) |
801 | QMetaType::registerConverter<QJSValue, QVariantMap>(function: convertJSValueToVariantType<QVariantMap>); |
802 | if (!QMetaType::hasRegisteredConverterFunction<QJSValue, QVariantList>()) |
803 | QMetaType::registerConverter<QJSValue, QVariantList>(function: convertJSValueToVariantType<QVariantList>); |
804 | if (!QMetaType::hasRegisteredConverterFunction<QJSValue, QStringList>()) |
805 | QMetaType::registerConverter<QJSValue, QStringList>(function: convertJSValueToVariantType<QStringList>); |
806 | if (!QMetaType::hasRegisteredConverterFunction<QJSValue, QtMetaTypePrivate::QSequentialIterableImpl>()) |
807 | QMetaType::registerConverter<QJSValue, QtMetaTypePrivate::QSequentialIterableImpl>(function: jsvalueToSequence); |
808 | QMetaType::registerStreamOperators(type: qMetaTypeId<QJSValue>(), saveOp: saveJSValue, loadOp: restoreJSValue); |
809 | |
810 | QV4::QObjectWrapper::initializeBindings(engine: this); |
811 | |
812 | m_delayedCallQueue.init(this); |
813 | } |
814 | |
815 | ExecutionEngine::~ExecutionEngine() |
816 | { |
817 | modules.clear(); |
818 | qDeleteAll(c: m_extensionData); |
819 | delete m_multiplyWrappedQObjects; |
820 | m_multiplyWrappedQObjects = nullptr; |
821 | delete identifierTable; |
822 | delete memoryManager; |
823 | |
824 | while (!compilationUnits.isEmpty()) |
825 | (*compilationUnits.begin())->unlink(); |
826 | |
827 | delete bumperPointerAllocator; |
828 | delete regExpCache; |
829 | delete regExpAllocator; |
830 | delete executableAllocator; |
831 | jsStack->deallocate(); |
832 | delete jsStack; |
833 | gcStack->deallocate(); |
834 | delete gcStack; |
835 | |
836 | #if QT_CONFIG(qml_xml_http_request) |
837 | qt_rem_qmlxmlhttprequest(engine: this, m_xmlHttpRequestData); |
838 | m_xmlHttpRequestData = nullptr; |
839 | #endif |
840 | } |
841 | |
842 | ExecutionContext *ExecutionEngine::currentContext() const |
843 | { |
844 | return static_cast<ExecutionContext *>(¤tStackFrame->jsFrame->context); |
845 | } |
846 | |
847 | #if QT_CONFIG(qml_debug) |
848 | void ExecutionEngine::setDebugger(Debugging::Debugger *debugger) |
849 | { |
850 | Q_ASSERT(!m_debugger); |
851 | m_debugger.reset(other: debugger); |
852 | } |
853 | |
854 | void ExecutionEngine::setProfiler(Profiling::Profiler *profiler) |
855 | { |
856 | Q_ASSERT(!m_profiler); |
857 | m_profiler.reset(other: profiler); |
858 | } |
859 | #endif // QT_CONFIG(qml_debug) |
860 | |
861 | void ExecutionEngine::initRootContext() |
862 | { |
863 | Scope scope(this); |
864 | Scoped<ExecutionContext> r(scope, memoryManager->allocManaged<ExecutionContext>(size: sizeof(ExecutionContext::Data))); |
865 | r->d_unchecked()->init(t: Heap::ExecutionContext::Type_GlobalContext); |
866 | r->d()->activation.set(e: this, newVal: globalObject->d()); |
867 | jsObjects[RootContext] = r; |
868 | jsObjects[ScriptContext] = r; |
869 | jsObjects[IntegerNull] = Encode((int)0); |
870 | } |
871 | |
872 | Heap::InternalClass *ExecutionEngine::newClass(Heap::InternalClass *other) |
873 | { |
874 | Heap::InternalClass *ic = memoryManager->allocIC<InternalClass>(); |
875 | ic->init(other); |
876 | return ic; |
877 | } |
878 | |
879 | Heap::InternalClass *ExecutionEngine::newInternalClass(const VTable *vtable, Object *prototype) |
880 | { |
881 | Scope scope(this); |
882 | Scoped<InternalClass> ic(scope, internalClasses(icType: Class_Empty)->changeVTable(vt: vtable)); |
883 | return ic->changePrototype(proto: prototype ? prototype->d() : nullptr); |
884 | } |
885 | |
886 | Heap::Object *ExecutionEngine::newObject() |
887 | { |
888 | return memoryManager->allocate<Object>(); |
889 | } |
890 | |
891 | Heap::Object *ExecutionEngine::newObject(Heap::InternalClass *internalClass) |
892 | { |
893 | return memoryManager->allocObject<Object>(ic: internalClass); |
894 | } |
895 | |
896 | Heap::String *ExecutionEngine::newString(const QString &s) |
897 | { |
898 | return memoryManager->allocWithStringData<String>(unmanagedSize: s.length() * sizeof(QChar), arg1: s); |
899 | } |
900 | |
901 | Heap::String *ExecutionEngine::newIdentifier(const QString &text) |
902 | { |
903 | Scope scope(this); |
904 | ScopedString s(scope, memoryManager->allocWithStringData<String>(unmanagedSize: text.length() * sizeof(QChar), arg1: text)); |
905 | s->toPropertyKey(); |
906 | return s->d(); |
907 | } |
908 | |
909 | Heap::Object *ExecutionEngine::newStringObject(const String *string) |
910 | { |
911 | return memoryManager->allocate<StringObject>(args: string); |
912 | } |
913 | |
914 | Heap::Object *ExecutionEngine::newSymbolObject(const Symbol *symbol) |
915 | { |
916 | return memoryManager->allocObject<SymbolObject>(ic: classes[Class_SymbolObject], args: symbol); |
917 | } |
918 | |
919 | Heap::Object *ExecutionEngine::newNumberObject(double value) |
920 | { |
921 | return memoryManager->allocate<NumberObject>(args: value); |
922 | } |
923 | |
924 | Heap::Object *ExecutionEngine::newBooleanObject(bool b) |
925 | { |
926 | return memoryManager->allocate<BooleanObject>(args: b); |
927 | } |
928 | |
929 | Heap::ArrayObject *ExecutionEngine::newArrayObject(int count) |
930 | { |
931 | Scope scope(this); |
932 | ScopedArrayObject object(scope, memoryManager->allocate<ArrayObject>()); |
933 | |
934 | if (count) { |
935 | if (count < 0x1000) |
936 | object->arrayReserve(n: count); |
937 | object->setArrayLengthUnchecked(count); |
938 | } |
939 | return object->d(); |
940 | } |
941 | |
942 | Heap::ArrayObject *ExecutionEngine::newArrayObject(const Value *values, int length) |
943 | { |
944 | Scope scope(this); |
945 | ScopedArrayObject a(scope, memoryManager->allocate<ArrayObject>()); |
946 | |
947 | if (length) { |
948 | size_t size = sizeof(Heap::ArrayData) + (length-1)*sizeof(Value); |
949 | Heap::SimpleArrayData *d = scope.engine->memoryManager->allocManaged<SimpleArrayData>(size); |
950 | d->init(); |
951 | d->type = Heap::ArrayData::Simple; |
952 | d->offset = 0; |
953 | d->values.alloc = length; |
954 | d->values.size = length; |
955 | // this doesn't require a write barrier, things will be ok, when the new array data gets inserted into |
956 | // the parent object |
957 | memcpy(dest: &d->values.values, src: values, n: length*sizeof(Value)); |
958 | a->d()->arrayData.set(e: this, newVal: d); |
959 | a->setArrayLengthUnchecked(length); |
960 | } |
961 | return a->d(); |
962 | } |
963 | |
964 | Heap::ArrayObject *ExecutionEngine::newArrayObject(const QStringList &list) |
965 | { |
966 | return memoryManager->allocate<ArrayObject>(args: list); |
967 | } |
968 | |
969 | Heap::ArrayObject *ExecutionEngine::newArrayObject(Heap::InternalClass *internalClass) |
970 | { |
971 | return memoryManager->allocObject<ArrayObject>(ic: internalClass); |
972 | } |
973 | |
974 | Heap::ArrayBuffer *ExecutionEngine::newArrayBuffer(const QByteArray &array) |
975 | { |
976 | return memoryManager->allocate<ArrayBuffer>(args: array); |
977 | } |
978 | |
979 | Heap::ArrayBuffer *ExecutionEngine::newArrayBuffer(size_t length) |
980 | { |
981 | return memoryManager->allocate<ArrayBuffer>(args: length); |
982 | } |
983 | |
984 | |
985 | Heap::DateObject *ExecutionEngine::newDateObject(const Value &value) |
986 | { |
987 | return memoryManager->allocate<DateObject>(args: value); |
988 | } |
989 | |
990 | Heap::DateObject *ExecutionEngine::newDateObject(const QDateTime &dt) |
991 | { |
992 | Scope scope(this); |
993 | Scoped<DateObject> object(scope, memoryManager->allocate<DateObject>(args: dt)); |
994 | return object->d(); |
995 | } |
996 | |
997 | Heap::DateObject *ExecutionEngine::newDateObjectFromTime(const QTime &t) |
998 | { |
999 | Scope scope(this); |
1000 | Scoped<DateObject> object(scope, memoryManager->allocate<DateObject>(args: t)); |
1001 | return object->d(); |
1002 | } |
1003 | |
1004 | Heap::RegExpObject *ExecutionEngine::newRegExpObject(const QString &pattern, int flags) |
1005 | { |
1006 | Scope scope(this); |
1007 | Scoped<RegExp> re(scope, RegExp::create(engine: this, pattern, flags: static_cast<CompiledData::RegExp::Flags>(flags))); |
1008 | return newRegExpObject(re); |
1009 | } |
1010 | |
1011 | Heap::RegExpObject *ExecutionEngine::newRegExpObject(RegExp *re) |
1012 | { |
1013 | return memoryManager->allocate<RegExpObject>(args: re); |
1014 | } |
1015 | |
1016 | Heap::RegExpObject *ExecutionEngine::newRegExpObject(const QRegExp &re) |
1017 | { |
1018 | return memoryManager->allocate<RegExpObject>(args: re); |
1019 | } |
1020 | |
1021 | #if QT_CONFIG(regularexpression) |
1022 | Heap::RegExpObject *ExecutionEngine::newRegExpObject(const QRegularExpression &re) |
1023 | { |
1024 | return memoryManager->allocate<RegExpObject>(args: re); |
1025 | } |
1026 | #endif |
1027 | |
1028 | Heap::Object *ExecutionEngine::newErrorObject(const Value &value) |
1029 | { |
1030 | return ErrorObject::create<ErrorObject>(e: this, message: value, newTarget: errorCtor()); |
1031 | } |
1032 | |
1033 | Heap::Object *ExecutionEngine::newErrorObject(const QString &message) |
1034 | { |
1035 | return ErrorObject::create<ErrorObject>(e: this, message); |
1036 | } |
1037 | |
1038 | Heap::Object *ExecutionEngine::newSyntaxErrorObject(const QString &message) |
1039 | { |
1040 | return ErrorObject::create<SyntaxErrorObject>(e: this, message); |
1041 | } |
1042 | |
1043 | Heap::Object *ExecutionEngine::newSyntaxErrorObject(const QString &message, const QString &fileName, int line, int column) |
1044 | { |
1045 | return ErrorObject::create<SyntaxErrorObject>(e: this, message, filename: fileName, line, column); |
1046 | } |
1047 | |
1048 | |
1049 | Heap::Object *ExecutionEngine::newReferenceErrorObject(const QString &message) |
1050 | { |
1051 | return ErrorObject::create<ReferenceErrorObject>(e: this, message); |
1052 | } |
1053 | |
1054 | Heap::Object *ExecutionEngine::newReferenceErrorObject(const QString &message, const QString &fileName, int line, int column) |
1055 | { |
1056 | return ErrorObject::create<ReferenceErrorObject>(e: this, message, filename: fileName, line, column); |
1057 | } |
1058 | |
1059 | |
1060 | Heap::Object *ExecutionEngine::newTypeErrorObject(const QString &message) |
1061 | { |
1062 | return ErrorObject::create<TypeErrorObject>(e: this, message); |
1063 | } |
1064 | |
1065 | Heap::Object *ExecutionEngine::newRangeErrorObject(const QString &message) |
1066 | { |
1067 | return ErrorObject::create<RangeErrorObject>(e: this, message); |
1068 | } |
1069 | |
1070 | Heap::Object *ExecutionEngine::newURIErrorObject(const Value &message) |
1071 | { |
1072 | return ErrorObject::create<URIErrorObject>(e: this, message, newTarget: uRIErrorCtor()); |
1073 | } |
1074 | |
1075 | Heap::PromiseObject *ExecutionEngine::newPromiseObject() |
1076 | { |
1077 | if (!m_reactionHandler) { |
1078 | m_reactionHandler.reset(other: new Promise::ReactionHandler); |
1079 | } |
1080 | |
1081 | Scope scope(this); |
1082 | Scoped<PromiseObject> object(scope, memoryManager->allocate<PromiseObject>(args: this)); |
1083 | return object->d(); |
1084 | } |
1085 | |
1086 | Heap::Object *ExecutionEngine::newPromiseObject(const QV4::FunctionObject *thisObject, const QV4::PromiseCapability *capability) |
1087 | { |
1088 | if (!m_reactionHandler) { |
1089 | m_reactionHandler.reset(other: new Promise::ReactionHandler); |
1090 | } |
1091 | |
1092 | Scope scope(this); |
1093 | Scoped<CapabilitiesExecutorWrapper> executor(scope, memoryManager->allocate<CapabilitiesExecutorWrapper>()); |
1094 | executor->d()->capabilities.set(e: this, newVal: capability->d()); |
1095 | executor->insertMember(s: id_length(), v: Primitive::fromInt32(i: 2), attributes: Attr_NotWritable|Attr_NotEnumerable); |
1096 | |
1097 | ScopedObject object(scope, thisObject->callAsConstructor(argv: executor, argc: 1)); |
1098 | return object->d(); |
1099 | } |
1100 | |
1101 | Promise::ReactionHandler *ExecutionEngine::getPromiseReactionHandler() |
1102 | { |
1103 | Q_ASSERT(m_reactionHandler); |
1104 | return m_reactionHandler.data(); |
1105 | } |
1106 | |
1107 | Heap::Object *ExecutionEngine::newURIErrorObject(const QString &message) |
1108 | { |
1109 | return ErrorObject::create<URIErrorObject>(e: this, message); |
1110 | } |
1111 | |
1112 | Heap::Object *ExecutionEngine::newEvalErrorObject(const QString &message) |
1113 | { |
1114 | return ErrorObject::create<EvalErrorObject>(e: this, message); |
1115 | } |
1116 | |
1117 | Heap::Object *ExecutionEngine::newVariantObject(const QVariant &v) |
1118 | { |
1119 | return memoryManager->allocate<VariantObject>(args: v); |
1120 | } |
1121 | |
1122 | Heap::Object *ExecutionEngine::newForInIteratorObject(Object *o) |
1123 | { |
1124 | Scope scope(this); |
1125 | ScopedObject obj(scope, memoryManager->allocate<ForInIteratorObject>(args: o)); |
1126 | return obj->d(); |
1127 | } |
1128 | |
1129 | Heap::Object *ExecutionEngine::newMapIteratorObject(Object *o) |
1130 | { |
1131 | return memoryManager->allocate<MapIteratorObject>(args: o->d(), args: this); |
1132 | } |
1133 | |
1134 | Heap::Object *ExecutionEngine::newSetIteratorObject(Object *o) |
1135 | { |
1136 | return memoryManager->allocate<SetIteratorObject>(args: o->d(), args: this); |
1137 | } |
1138 | |
1139 | Heap::Object *ExecutionEngine::newArrayIteratorObject(Object *o) |
1140 | { |
1141 | return memoryManager->allocate<ArrayIteratorObject>(args: o->d(), args: this); |
1142 | } |
1143 | |
1144 | Heap::QmlContext *ExecutionEngine::qmlContext() const |
1145 | { |
1146 | if (!currentStackFrame) |
1147 | return nullptr; |
1148 | Heap::ExecutionContext *ctx = currentContext()->d(); |
1149 | |
1150 | if (ctx->type != Heap::ExecutionContext::Type_QmlContext && !ctx->outer) |
1151 | return nullptr; |
1152 | |
1153 | while (ctx->outer && ctx->outer->type != Heap::ExecutionContext::Type_GlobalContext) |
1154 | ctx = ctx->outer; |
1155 | |
1156 | Q_ASSERT(ctx); |
1157 | if (ctx->type != Heap::ExecutionContext::Type_QmlContext) |
1158 | return nullptr; |
1159 | |
1160 | return static_cast<Heap::QmlContext *>(ctx); |
1161 | } |
1162 | |
1163 | QObject *ExecutionEngine::qmlScopeObject() const |
1164 | { |
1165 | Heap::QmlContext *ctx = qmlContext(); |
1166 | if (!ctx) |
1167 | return nullptr; |
1168 | |
1169 | return ctx->qml()->scopeObject; |
1170 | } |
1171 | |
1172 | QQmlContextData *ExecutionEngine::callingQmlContext() const |
1173 | { |
1174 | Heap::QmlContext *ctx = qmlContext(); |
1175 | if (!ctx) |
1176 | return nullptr; |
1177 | |
1178 | return ctx->qml()->context->contextData(); |
1179 | } |
1180 | |
1181 | StackTrace ExecutionEngine::stackTrace(int frameLimit) const |
1182 | { |
1183 | Scope scope(const_cast<ExecutionEngine *>(this)); |
1184 | ScopedString name(scope); |
1185 | StackTrace stack; |
1186 | |
1187 | CppStackFrame *f = currentStackFrame; |
1188 | while (f && frameLimit) { |
1189 | QV4::StackFrame frame; |
1190 | frame.source = f->source(); |
1191 | frame.function = f->function(); |
1192 | frame.line = qAbs(t: f->lineNumber()); |
1193 | frame.column = -1; |
1194 | stack.append(t: frame); |
1195 | if (f->isTailCalling) { |
1196 | QV4::StackFrame frame; |
1197 | frame.function = QStringLiteral("[elided tail calls]" ); |
1198 | stack.append(t: frame); |
1199 | } |
1200 | --frameLimit; |
1201 | f = f->parent; |
1202 | } |
1203 | |
1204 | return stack; |
1205 | } |
1206 | |
1207 | /* Helper and "C" linkage exported function to format a GDBMI stacktrace for |
1208 | * invocation by a debugger. |
1209 | * Sample GDB invocation: print qt_v4StackTrace((void*)0x7fffffffb290) |
1210 | * Sample CDB invocation: .call Qt5Qmld!qt_v4StackTrace(0x7fffffffb290) ; gh |
1211 | * Note: The helper is there to suppress MSVC warning 4190 about anything |
1212 | * with UDT return types in a "C" linkage function. */ |
1213 | |
1214 | static inline char *v4StackTrace(const ExecutionContext *context) |
1215 | { |
1216 | QString result; |
1217 | QTextStream str(&result); |
1218 | str << "stack=[" ; |
1219 | if (context && context->engine()) { |
1220 | const QVector<StackFrame> stackTrace = context->engine()->stackTrace(frameLimit: 20); |
1221 | for (int i = 0; i < stackTrace.size(); ++i) { |
1222 | if (i) |
1223 | str << ','; |
1224 | const QUrl url(stackTrace.at(i).source); |
1225 | const QString fileName = url.isLocalFile() ? url.toLocalFile() : url.toString(); |
1226 | str << "frame={level=\"" << i << "\",func=\"" << stackTrace.at(i).function |
1227 | << "\",file=\"" << fileName << "\",fullname=\"" << fileName |
1228 | << "\",line=\"" << stackTrace.at(i).line << "\",language=\"js\"}" ; |
1229 | } |
1230 | } |
1231 | str << ']'; |
1232 | return qstrdup(result.toLocal8Bit().constData()); |
1233 | } |
1234 | |
1235 | extern "C" Q_QML_EXPORT char *qt_v4StackTrace(void *executionContext) |
1236 | { |
1237 | return v4StackTrace(context: reinterpret_cast<const ExecutionContext *>(executionContext)); |
1238 | } |
1239 | |
1240 | extern "C" Q_QML_EXPORT char *qt_v4StackTraceForEngine(void *executionEngine) |
1241 | { |
1242 | auto engine = (reinterpret_cast<const ExecutionEngine *>(executionEngine)); |
1243 | return v4StackTrace(context: engine->currentContext()); |
1244 | } |
1245 | |
1246 | QUrl ExecutionEngine::resolvedUrl(const QString &file) |
1247 | { |
1248 | QUrl src(file); |
1249 | if (!src.isRelative()) |
1250 | return src; |
1251 | |
1252 | QUrl base; |
1253 | CppStackFrame *f = currentStackFrame; |
1254 | while (f) { |
1255 | if (f->v4Function) { |
1256 | base = f->v4Function->finalUrl(); |
1257 | break; |
1258 | } |
1259 | f = f->parent; |
1260 | } |
1261 | |
1262 | if (base.isEmpty() && globalCode) |
1263 | base = globalCode->finalUrl(); |
1264 | |
1265 | if (base.isEmpty()) |
1266 | return src; |
1267 | |
1268 | return base.resolved(relative: src); |
1269 | } |
1270 | |
1271 | void ExecutionEngine::markObjects(MarkStack *markStack) |
1272 | { |
1273 | for (int i = 0; i < NClasses; ++i) { |
1274 | if (Heap::InternalClass *c = classes[i]) |
1275 | c->mark(markStack); |
1276 | } |
1277 | |
1278 | identifierTable->markObjects(markStack); |
1279 | |
1280 | for (auto compilationUnit: compilationUnits) |
1281 | compilationUnit->markObjects(markStack); |
1282 | } |
1283 | |
1284 | ReturnedValue ExecutionEngine::throwError(const Value &value) |
1285 | { |
1286 | // we can get in here with an exception already set, as the runtime |
1287 | // doesn't check after every operation that can throw. |
1288 | // in this case preserve the first exception to give correct error |
1289 | // information |
1290 | if (hasException) |
1291 | return Encode::undefined(); |
1292 | |
1293 | hasException = true; |
1294 | *exceptionValue = value; |
1295 | QV4::Scope scope(this); |
1296 | QV4::Scoped<ErrorObject> error(scope, value); |
1297 | if (!!error) |
1298 | exceptionStackTrace = *error->d()->stackTrace; |
1299 | else |
1300 | exceptionStackTrace = stackTrace(); |
1301 | |
1302 | if (QV4::Debugging::Debugger *debug = debugger()) |
1303 | debug->aboutToThrow(); |
1304 | |
1305 | return Encode::undefined(); |
1306 | } |
1307 | |
1308 | ReturnedValue ExecutionEngine::catchException(StackTrace *trace) |
1309 | { |
1310 | Q_ASSERT(hasException); |
1311 | if (trace) |
1312 | *trace = exceptionStackTrace; |
1313 | exceptionStackTrace.clear(); |
1314 | hasException = false; |
1315 | ReturnedValue res = exceptionValue->asReturnedValue(); |
1316 | *exceptionValue = Value::emptyValue(); |
1317 | return res; |
1318 | } |
1319 | |
1320 | ReturnedValue ExecutionEngine::throwError(const QString &message) |
1321 | { |
1322 | Scope scope(this); |
1323 | ScopedValue v(scope, newString(s: message)); |
1324 | v = newErrorObject(value: v); |
1325 | return throwError(value: v); |
1326 | } |
1327 | |
1328 | ReturnedValue ExecutionEngine::throwSyntaxError(const QString &message, const QString &fileName, int line, int column) |
1329 | { |
1330 | Scope scope(this); |
1331 | ScopedObject error(scope, newSyntaxErrorObject(message, fileName, line, column)); |
1332 | return throwError(value: error); |
1333 | } |
1334 | |
1335 | ReturnedValue ExecutionEngine::throwSyntaxError(const QString &message) |
1336 | { |
1337 | Scope scope(this); |
1338 | ScopedObject error(scope, newSyntaxErrorObject(message)); |
1339 | return throwError(value: error); |
1340 | } |
1341 | |
1342 | |
1343 | ReturnedValue ExecutionEngine::throwTypeError() |
1344 | { |
1345 | Scope scope(this); |
1346 | ScopedObject error(scope, newTypeErrorObject(QStringLiteral("Type error" ))); |
1347 | return throwError(value: error); |
1348 | } |
1349 | |
1350 | ReturnedValue ExecutionEngine::throwTypeError(const QString &message) |
1351 | { |
1352 | Scope scope(this); |
1353 | ScopedObject error(scope, newTypeErrorObject(message)); |
1354 | return throwError(value: error); |
1355 | } |
1356 | |
1357 | ReturnedValue ExecutionEngine::throwReferenceError(const QString &name) |
1358 | { |
1359 | Scope scope(this); |
1360 | QString msg = name + QLatin1String(" is not defined" ); |
1361 | ScopedObject error(scope, newReferenceErrorObject(message: msg)); |
1362 | return throwError(value: error); |
1363 | } |
1364 | |
1365 | ReturnedValue ExecutionEngine::throwReferenceError(const Value &value) |
1366 | { |
1367 | Scope scope(this); |
1368 | ScopedString s(scope, value.toString(e: this)); |
1369 | QString msg = s->toQString() + QLatin1String(" is not defined" ); |
1370 | ScopedObject error(scope, newReferenceErrorObject(message: msg)); |
1371 | return throwError(value: error); |
1372 | } |
1373 | |
1374 | ReturnedValue ExecutionEngine::throwReferenceError(const QString &message, const QString &fileName, int line, int column) |
1375 | { |
1376 | Scope scope(this); |
1377 | QString msg = message; |
1378 | ScopedObject error(scope, newReferenceErrorObject(message: msg, fileName, line, column)); |
1379 | return throwError(value: error); |
1380 | } |
1381 | |
1382 | ReturnedValue ExecutionEngine::throwRangeError(const QString &message) |
1383 | { |
1384 | Scope scope(this); |
1385 | ScopedObject error(scope, newRangeErrorObject(message)); |
1386 | return throwError(value: error); |
1387 | } |
1388 | |
1389 | ReturnedValue ExecutionEngine::throwRangeError(const Value &value) |
1390 | { |
1391 | Scope scope(this); |
1392 | ScopedString s(scope, value.toString(e: this)); |
1393 | QString msg = s->toQString() + QLatin1String(" out of range" ); |
1394 | ScopedObject error(scope, newRangeErrorObject(message: msg)); |
1395 | return throwError(value: error); |
1396 | } |
1397 | |
1398 | ReturnedValue ExecutionEngine::throwURIError(const Value &msg) |
1399 | { |
1400 | Scope scope(this); |
1401 | ScopedObject error(scope, newURIErrorObject(message: msg)); |
1402 | return throwError(value: error); |
1403 | } |
1404 | |
1405 | ReturnedValue ExecutionEngine::throwUnimplemented(const QString &message) |
1406 | { |
1407 | Scope scope(this); |
1408 | ScopedValue v(scope, newString(s: QLatin1String("Unimplemented " ) + message)); |
1409 | v = newErrorObject(value: v); |
1410 | return throwError(value: v); |
1411 | } |
1412 | |
1413 | |
1414 | QQmlError ExecutionEngine::catchExceptionAsQmlError() |
1415 | { |
1416 | QV4::StackTrace trace; |
1417 | QV4::Scope scope(this); |
1418 | QV4::ScopedValue exception(scope, catchException(trace: &trace)); |
1419 | QQmlError error; |
1420 | if (!trace.isEmpty()) { |
1421 | QV4::StackFrame frame = trace.constFirst(); |
1422 | error.setUrl(QUrl(frame.source)); |
1423 | error.setLine(frame.line); |
1424 | error.setColumn(frame.column); |
1425 | } |
1426 | QV4::Scoped<QV4::ErrorObject> errorObj(scope, exception); |
1427 | error.setDescription(exception->toQStringNoThrow()); |
1428 | return error; |
1429 | } |
1430 | |
1431 | // Variant conversion code |
1432 | |
1433 | typedef QSet<QV4::Heap::Object *> V4ObjectSet; |
1434 | static QVariant toVariant(QV4::ExecutionEngine *e, const QV4::Value &value, int typeHint, bool createJSValueForObjects, V4ObjectSet *visitedObjects); |
1435 | static QObject *qtObjectFromJS(QV4::ExecutionEngine *engine, const QV4::Value &value); |
1436 | static QVariant objectToVariant(QV4::ExecutionEngine *e, const QV4::Object *o, V4ObjectSet *visitedObjects = nullptr); |
1437 | static bool convertToNativeQObject(QV4::ExecutionEngine *e, const QV4::Value &value, |
1438 | const QByteArray &targetType, |
1439 | void **result); |
1440 | static QV4::ReturnedValue variantListToJS(QV4::ExecutionEngine *v4, const QVariantList &lst); |
1441 | static QV4::ReturnedValue sequentialIterableToJS(QV4::ExecutionEngine *v4, const QSequentialIterable &lst); |
1442 | static QV4::ReturnedValue variantMapToJS(QV4::ExecutionEngine *v4, const QVariantMap &vmap); |
1443 | static QV4::ReturnedValue variantToJS(QV4::ExecutionEngine *v4, const QVariant &value) |
1444 | { |
1445 | return v4->metaTypeToJS(type: value.userType(), data: value.constData()); |
1446 | } |
1447 | |
1448 | |
1449 | QVariant ExecutionEngine::toVariant(const Value &value, int typeHint, bool createJSValueForObjects) |
1450 | { |
1451 | return ::toVariant(e: this, value, typeHint, createJSValueForObjects, visitedObjects: nullptr); |
1452 | } |
1453 | |
1454 | |
1455 | static QVariant toVariant(QV4::ExecutionEngine *e, const QV4::Value &value, int typeHint, bool createJSValueForObjects, V4ObjectSet *visitedObjects) |
1456 | { |
1457 | Q_ASSERT (!value.isEmpty()); |
1458 | QV4::Scope scope(e); |
1459 | |
1460 | if (const QV4::VariantObject *v = value.as<QV4::VariantObject>()) |
1461 | return v->d()->data(); |
1462 | |
1463 | if (typeHint == QMetaType::Bool) |
1464 | return QVariant(value.toBoolean()); |
1465 | |
1466 | if (typeHint == QMetaType::QJsonValue) |
1467 | return QVariant::fromValue(value: QV4::JsonObject::toJsonValue(value)); |
1468 | |
1469 | if (typeHint == qMetaTypeId<QJSValue>()) |
1470 | return QVariant::fromValue(value: QJSValue(e, value.asReturnedValue())); |
1471 | |
1472 | if (value.as<QV4::Object>()) { |
1473 | QV4::ScopedObject object(scope, value); |
1474 | if (typeHint == QMetaType::QJsonObject |
1475 | && !value.as<ArrayObject>() && !value.as<FunctionObject>()) { |
1476 | return QVariant::fromValue(value: QV4::JsonObject::toJsonObject(o: object)); |
1477 | } else if (QV4::QObjectWrapper *wrapper = object->as<QV4::QObjectWrapper>()) { |
1478 | return QVariant::fromValue<QObject *>(value: wrapper->object()); |
1479 | } else if (object->as<QV4::QQmlContextWrapper>()) { |
1480 | return QVariant(); |
1481 | } else if (QV4::QQmlTypeWrapper *w = object->as<QV4::QQmlTypeWrapper>()) { |
1482 | return w->toVariant(); |
1483 | } else if (QV4::QQmlValueTypeWrapper *v = object->as<QV4::QQmlValueTypeWrapper>()) { |
1484 | return v->toVariant(); |
1485 | } else if (QV4::QmlListWrapper *l = object->as<QV4::QmlListWrapper>()) { |
1486 | return l->toVariant(); |
1487 | #if QT_CONFIG(qml_sequence_object) |
1488 | } else if (object->isListType()) { |
1489 | return QV4::SequencePrototype::toVariant(object); |
1490 | #endif |
1491 | } |
1492 | } |
1493 | |
1494 | if (value.as<ArrayObject>()) { |
1495 | QV4::ScopedArrayObject a(scope, value); |
1496 | if (typeHint == qMetaTypeId<QList<QObject *> >()) { |
1497 | QList<QObject *> list; |
1498 | uint length = a->getLength(); |
1499 | QV4::Scoped<QV4::QObjectWrapper> qobjectWrapper(scope); |
1500 | for (uint ii = 0; ii < length; ++ii) { |
1501 | qobjectWrapper = a->get(idx: ii); |
1502 | if (!!qobjectWrapper) { |
1503 | list << qobjectWrapper->object(); |
1504 | } else { |
1505 | list << 0; |
1506 | } |
1507 | } |
1508 | |
1509 | return QVariant::fromValue<QList<QObject*> >(value: list); |
1510 | } else if (typeHint == QMetaType::QJsonArray) { |
1511 | return QVariant::fromValue(value: QV4::JsonObject::toJsonArray(a)); |
1512 | } |
1513 | |
1514 | QVariant retn; |
1515 | #if QT_CONFIG(qml_sequence_object) |
1516 | bool succeeded = false; |
1517 | retn = QV4::SequencePrototype::toVariant(array: value, typeHint, succeeded: &succeeded); |
1518 | if (succeeded) |
1519 | return retn; |
1520 | #endif |
1521 | if (typeHint != -1) { |
1522 | // the QVariant constructor will create a copy, so we have manually |
1523 | // destroy the value returned by QMetaType::create |
1524 | auto temp = QMetaType::create(type: typeHint); |
1525 | retn = QVariant(typeHint, temp); |
1526 | QMetaType::destroy(type: typeHint, data: temp); |
1527 | auto retnAsIterable = retn.value<QtMetaTypePrivate::QSequentialIterableImpl>(); |
1528 | if (retnAsIterable.containerCapabilities() & QtMetaTypePrivate::ContainerIsAppendable) { |
1529 | auto const length = a->getLength(); |
1530 | QV4::ScopedValue arrayValue(scope); |
1531 | for (qint64 i = 0; i < length; ++i) { |
1532 | arrayValue = a->get(idx: i); |
1533 | QVariant asVariant; |
1534 | if (QMetaType::hasRegisteredConverterFunction(fromTypeId: qMetaTypeId<QJSValue>(), toTypeId: retnAsIterable._metaType_id)) { |
1535 | // before attempting a conversion from the concrete types, |
1536 | // check if there exists a conversion from QJSValue -> out type |
1537 | // prefer that one for compatibility reasons |
1538 | asVariant = QVariant::fromValue(value: QJSValue(scope.engine, arrayValue->asReturnedValue())); |
1539 | if (asVariant.convert(targetTypeId: retnAsIterable._metaType_id)) { |
1540 | retnAsIterable.append(newElement: asVariant.constData()); |
1541 | continue; |
1542 | } |
1543 | } |
1544 | asVariant = toVariant(e, value: arrayValue, typeHint: retnAsIterable._metaType_id, createJSValueForObjects: false, visitedObjects); |
1545 | auto originalType = asVariant.userType(); |
1546 | bool couldConvert = asVariant.convert(targetTypeId: retnAsIterable._metaType_id); |
1547 | if (!couldConvert) { |
1548 | qWarning() << QLatin1String("Could not convert array value at position %1 from %2 to %3" ) |
1549 | .arg(args: QString::number(i), |
1550 | args: QString::fromUtf8(str: QMetaType::typeName(type: originalType)), |
1551 | args: QString::fromUtf8(str: QMetaType::typeName(type: retnAsIterable._metaType_id))); |
1552 | // create default constructed value |
1553 | asVariant = QVariant(retnAsIterable._metaType_id, nullptr); |
1554 | } |
1555 | retnAsIterable.append(newElement: asVariant.constData()); |
1556 | } |
1557 | return retn; |
1558 | } |
1559 | } |
1560 | } |
1561 | |
1562 | if (value.isUndefined()) |
1563 | return QVariant(); |
1564 | if (value.isNull()) |
1565 | return QVariant::fromValue(value: nullptr); |
1566 | if (value.isBoolean()) |
1567 | return value.booleanValue(); |
1568 | if (value.isInteger()) |
1569 | return value.integerValue(); |
1570 | if (value.isNumber()) |
1571 | return value.asDouble(); |
1572 | if (String *s = value.stringValue()) { |
1573 | const QString &str = s->toQString(); |
1574 | // QChars are stored as a strings |
1575 | if (typeHint == QMetaType::QChar && str.size() == 1) |
1576 | return str.at(i: 0); |
1577 | return str; |
1578 | } |
1579 | #if QT_CONFIG(qml_locale) |
1580 | if (const QV4::QQmlLocaleData *ld = value.as<QV4::QQmlLocaleData>()) |
1581 | return *ld->d()->locale; |
1582 | #endif |
1583 | if (const QV4::DateObject *d = value.as<DateObject>()) |
1584 | return d->toQDateTime(); |
1585 | if (const ArrayBuffer *d = value.as<ArrayBuffer>()) |
1586 | return d->asByteArray(); |
1587 | // NOTE: since we convert QTime to JS Date, round trip will change the variant type (to QDateTime)! |
1588 | |
1589 | QV4::ScopedObject o(scope, value); |
1590 | Q_ASSERT(o); |
1591 | |
1592 | if (QV4::RegExpObject *re = o->as<QV4::RegExpObject>()) { |
1593 | #if QT_CONFIG(regularexpression) |
1594 | if (typeHint != QMetaType::QRegExp) |
1595 | return re->toQRegularExpression(); |
1596 | #endif |
1597 | return re->toQRegExp(); |
1598 | } |
1599 | |
1600 | if (createJSValueForObjects) |
1601 | return QVariant::fromValue(value: QJSValue(scope.engine, o->asReturnedValue())); |
1602 | |
1603 | return objectToVariant(e, o, visitedObjects); |
1604 | } |
1605 | |
1606 | static QVariant objectToVariant(QV4::ExecutionEngine *e, const QV4::Object *o, V4ObjectSet *visitedObjects) |
1607 | { |
1608 | Q_ASSERT(o); |
1609 | |
1610 | V4ObjectSet recursionGuardSet; |
1611 | if (!visitedObjects) { |
1612 | visitedObjects = &recursionGuardSet; |
1613 | } else if (visitedObjects->contains(value: o->d())) { |
1614 | // Avoid recursion. |
1615 | // For compatibility with QVariant{List,Map} conversion, we return an |
1616 | // empty object (and no error is thrown). |
1617 | if (o->as<ArrayObject>()) |
1618 | return QVariantList(); |
1619 | return QVariantMap(); |
1620 | } |
1621 | visitedObjects->insert(value: o->d()); |
1622 | |
1623 | QVariant result; |
1624 | |
1625 | if (o->as<ArrayObject>()) { |
1626 | QV4::Scope scope(e); |
1627 | QV4::ScopedArrayObject a(scope, o->asReturnedValue()); |
1628 | QV4::ScopedValue v(scope); |
1629 | QVariantList list; |
1630 | |
1631 | int length = a->getLength(); |
1632 | for (int ii = 0; ii < length; ++ii) { |
1633 | v = a->get(idx: ii); |
1634 | list << ::toVariant(e, value: v, typeHint: -1, /*createJSValueForObjects*/false, visitedObjects); |
1635 | } |
1636 | |
1637 | result = list; |
1638 | } else if (!o->as<FunctionObject>()) { |
1639 | QVariantMap map; |
1640 | QV4::Scope scope(e); |
1641 | QV4::ObjectIterator it(scope, o, QV4::ObjectIterator::EnumerableOnly); |
1642 | QV4::ScopedValue name(scope); |
1643 | QV4::ScopedValue val(scope); |
1644 | while (1) { |
1645 | name = it.nextPropertyNameAsString(value: val); |
1646 | if (name->isNull()) |
1647 | break; |
1648 | |
1649 | QString key = name->toQStringNoThrow(); |
1650 | map.insert(akey: key, avalue: ::toVariant(e, value: val, /*type hint*/typeHint: -1, /*createJSValueForObjects*/false, visitedObjects)); |
1651 | } |
1652 | |
1653 | result = map; |
1654 | } |
1655 | |
1656 | visitedObjects->remove(value: o->d()); |
1657 | return result; |
1658 | } |
1659 | |
1660 | QV4::ReturnedValue QV4::ExecutionEngine::fromVariant(const QVariant &variant) |
1661 | { |
1662 | int type = variant.userType(); |
1663 | const void *ptr = variant.constData(); |
1664 | |
1665 | if (type < QMetaType::User) { |
1666 | switch (QMetaType::Type(type)) { |
1667 | case QMetaType::UnknownType: |
1668 | case QMetaType::Void: |
1669 | return QV4::Encode::undefined(); |
1670 | case QMetaType::Nullptr: |
1671 | case QMetaType::VoidStar: |
1672 | return QV4::Encode::null(); |
1673 | case QMetaType::Bool: |
1674 | return QV4::Encode(*reinterpret_cast<const bool*>(ptr)); |
1675 | case QMetaType::Int: |
1676 | return QV4::Encode(*reinterpret_cast<const int*>(ptr)); |
1677 | case QMetaType::UInt: |
1678 | return QV4::Encode(*reinterpret_cast<const uint*>(ptr)); |
1679 | case QMetaType::LongLong: |
1680 | return QV4::Encode((double)*reinterpret_cast<const qlonglong*>(ptr)); |
1681 | case QMetaType::ULongLong: |
1682 | return QV4::Encode((double)*reinterpret_cast<const qulonglong*>(ptr)); |
1683 | case QMetaType::Double: |
1684 | return QV4::Encode(*reinterpret_cast<const double*>(ptr)); |
1685 | case QMetaType::QString: |
1686 | return newString(s: *reinterpret_cast<const QString*>(ptr))->asReturnedValue(); |
1687 | case QMetaType::QByteArray: |
1688 | return newArrayBuffer(array: *reinterpret_cast<const QByteArray*>(ptr))->asReturnedValue(); |
1689 | case QMetaType::Float: |
1690 | return QV4::Encode(*reinterpret_cast<const float*>(ptr)); |
1691 | case QMetaType::Short: |
1692 | return QV4::Encode((int)*reinterpret_cast<const short*>(ptr)); |
1693 | case QMetaType::UShort: |
1694 | return QV4::Encode((int)*reinterpret_cast<const unsigned short*>(ptr)); |
1695 | case QMetaType::Char: |
1696 | return QV4::Encode((int)*reinterpret_cast<const char*>(ptr)); |
1697 | case QMetaType::UChar: |
1698 | return QV4::Encode((int)*reinterpret_cast<const unsigned char*>(ptr)); |
1699 | case QMetaType::QChar: |
1700 | return newString(s: *reinterpret_cast<const QChar *>(ptr))->asReturnedValue(); |
1701 | case QMetaType::QDateTime: |
1702 | return QV4::Encode(newDateObject(dt: *reinterpret_cast<const QDateTime *>(ptr))); |
1703 | case QMetaType::QDate: |
1704 | return QV4::Encode(newDateObject(dt: QDateTime(*reinterpret_cast<const QDate *>(ptr), QTime(0, 0, 0), Qt::UTC))); |
1705 | case QMetaType::QTime: |
1706 | return QV4::Encode(newDateObjectFromTime(t: *reinterpret_cast<const QTime *>(ptr))); |
1707 | case QMetaType::QRegExp: |
1708 | return QV4::Encode(newRegExpObject(re: *reinterpret_cast<const QRegExp *>(ptr))); |
1709 | #if QT_CONFIG(regularexpression) |
1710 | case QMetaType::QRegularExpression: |
1711 | return QV4::Encode(newRegExpObject(re: *reinterpret_cast<const QRegularExpression *>(ptr))); |
1712 | #endif |
1713 | case QMetaType::QObjectStar: |
1714 | return QV4::QObjectWrapper::wrap(engine: this, object: *reinterpret_cast<QObject* const *>(ptr)); |
1715 | #if QT_CONFIG(qml_sequence_object) |
1716 | case QMetaType::QStringList: |
1717 | { |
1718 | bool succeeded = false; |
1719 | QV4::Scope scope(this); |
1720 | QV4::ScopedValue retn(scope, QV4::SequencePrototype::fromVariant(engine: this, v: variant, succeeded: &succeeded)); |
1721 | if (succeeded) |
1722 | return retn->asReturnedValue(); |
1723 | return QV4::Encode(newArrayObject(list: *reinterpret_cast<const QStringList *>(ptr))); |
1724 | } |
1725 | #endif |
1726 | case QMetaType::QVariantList: |
1727 | return variantListToJS(v4: this, lst: *reinterpret_cast<const QVariantList *>(ptr)); |
1728 | case QMetaType::QVariantMap: |
1729 | return variantMapToJS(v4: this, vmap: *reinterpret_cast<const QVariantMap *>(ptr)); |
1730 | case QMetaType::QJsonValue: |
1731 | return QV4::JsonObject::fromJsonValue(engine: this, value: *reinterpret_cast<const QJsonValue *>(ptr)); |
1732 | case QMetaType::QJsonObject: |
1733 | return QV4::JsonObject::fromJsonObject(engine: this, object: *reinterpret_cast<const QJsonObject *>(ptr)); |
1734 | case QMetaType::QJsonArray: |
1735 | return QV4::JsonObject::fromJsonArray(engine: this, array: *reinterpret_cast<const QJsonArray *>(ptr)); |
1736 | #if QT_CONFIG(qml_locale) |
1737 | case QMetaType::QLocale: |
1738 | return QQmlLocale::wrap(engine: this, locale: *reinterpret_cast<const QLocale*>(ptr)); |
1739 | #endif |
1740 | case QMetaType::QPixmap: |
1741 | case QMetaType::QImage: |
1742 | // Scarce value types |
1743 | return QV4::Encode(newVariantObject(v: variant)); |
1744 | default: |
1745 | break; |
1746 | } |
1747 | |
1748 | if (const QMetaObject *vtmo = QQmlValueTypeFactory::metaObjectForMetaType(type)) |
1749 | return QV4::QQmlValueTypeWrapper::create(engine: this, variant, metaObject: vtmo, typeId: type); |
1750 | } else { |
1751 | QV4::Scope scope(this); |
1752 | if (type == qMetaTypeId<QQmlListReference>()) { |
1753 | typedef QQmlListReferencePrivate QDLRP; |
1754 | QDLRP *p = QDLRP::get(ref: (QQmlListReference*)const_cast<void *>(ptr)); |
1755 | if (p->object) { |
1756 | return QV4::QmlListWrapper::create(engine: scope.engine, prop: p->property, propType: p->propertyType); |
1757 | } else { |
1758 | return QV4::Encode::null(); |
1759 | } |
1760 | } else if (type == qMetaTypeId<QJSValue>()) { |
1761 | const QJSValue *value = reinterpret_cast<const QJSValue *>(ptr); |
1762 | return QJSValuePrivate::convertedToValue(e: this, jsval: *value); |
1763 | } else if (type == qMetaTypeId<QList<QObject *> >()) { |
1764 | // XXX Can this be made more by using Array as a prototype and implementing |
1765 | // directly against QList<QObject*>? |
1766 | const QList<QObject *> &list = *(const QList<QObject *>*)ptr; |
1767 | QV4::ScopedArrayObject a(scope, newArrayObject()); |
1768 | a->arrayReserve(n: list.count()); |
1769 | QV4::ScopedValue v(scope); |
1770 | for (int ii = 0; ii < list.count(); ++ii) |
1771 | a->arrayPut(index: ii, value: (v = QV4::QObjectWrapper::wrap(engine: this, object: list.at(i: ii)))); |
1772 | a->setArrayLengthUnchecked(list.count()); |
1773 | return a.asReturnedValue(); |
1774 | } else if (QMetaType::typeFlags(type) & QMetaType::PointerToQObject) { |
1775 | return QV4::QObjectWrapper::wrap(engine: this, object: *reinterpret_cast<QObject* const *>(ptr)); |
1776 | } |
1777 | |
1778 | bool objOk; |
1779 | QObject *obj = QQmlMetaType::toQObject(variant, ok: &objOk); |
1780 | if (objOk) |
1781 | return QV4::QObjectWrapper::wrap(engine: this, object: obj); |
1782 | |
1783 | #if QT_CONFIG(qml_sequence_object) |
1784 | bool succeeded = false; |
1785 | QV4::ScopedValue retn(scope, QV4::SequencePrototype::fromVariant(engine: this, v: variant, succeeded: &succeeded)); |
1786 | if (succeeded) |
1787 | return retn->asReturnedValue(); |
1788 | #endif |
1789 | |
1790 | if (QMetaType::hasRegisteredConverterFunction(fromTypeId: type, toTypeId: qMetaTypeId<QtMetaTypePrivate::QSequentialIterableImpl>())) { |
1791 | QSequentialIterable lst = variant.value<QSequentialIterable>(); |
1792 | return sequentialIterableToJS(v4: this, lst); |
1793 | } |
1794 | |
1795 | if (const QMetaObject *vtmo = QQmlValueTypeFactory::metaObjectForMetaType(type)) |
1796 | return QV4::QQmlValueTypeWrapper::create(engine: this, variant, metaObject: vtmo, typeId: type); |
1797 | } |
1798 | |
1799 | // XXX TODO: To be compatible, we still need to handle: |
1800 | // + QObjectList |
1801 | // + QList<int> |
1802 | |
1803 | return QV4::Encode(newVariantObject(v: variant)); |
1804 | } |
1805 | |
1806 | QVariantMap ExecutionEngine::variantMapFromJS(const Object *o) |
1807 | { |
1808 | return objectToVariant(e: this, o).toMap(); |
1809 | } |
1810 | |
1811 | |
1812 | // Converts a QVariantList to JS. |
1813 | // The result is a new Array object with length equal to the length |
1814 | // of the QVariantList, and the elements being the QVariantList's |
1815 | // elements converted to JS, recursively. |
1816 | static QV4::ReturnedValue variantListToJS(QV4::ExecutionEngine *v4, const QVariantList &lst) |
1817 | { |
1818 | QV4::Scope scope(v4); |
1819 | QV4::ScopedArrayObject a(scope, v4->newArrayObject()); |
1820 | a->arrayReserve(n: lst.size()); |
1821 | QV4::ScopedValue v(scope); |
1822 | for (int i = 0; i < lst.size(); i++) |
1823 | a->arrayPut(index: i, value: (v = variantToJS(v4, value: lst.at(i)))); |
1824 | a->setArrayLengthUnchecked(lst.size()); |
1825 | return a.asReturnedValue(); |
1826 | } |
1827 | |
1828 | // Converts a QSequentialIterable to JS. |
1829 | // The result is a new Array object with length equal to the length |
1830 | // of the QSequentialIterable, and the elements being the QSequentialIterable's |
1831 | // elements converted to JS, recursively. |
1832 | static QV4::ReturnedValue sequentialIterableToJS(QV4::ExecutionEngine *v4, const QSequentialIterable &lst) |
1833 | { |
1834 | QV4::Scope scope(v4); |
1835 | QV4::ScopedArrayObject a(scope, v4->newArrayObject()); |
1836 | a->arrayReserve(n: lst.size()); |
1837 | QV4::ScopedValue v(scope); |
1838 | for (int i = 0; i < lst.size(); i++) |
1839 | a->arrayPut(index: i, value: (v = variantToJS(v4, value: lst.at(idx: i)))); |
1840 | a->setArrayLengthUnchecked(lst.size()); |
1841 | return a.asReturnedValue(); |
1842 | } |
1843 | |
1844 | // Converts a QVariantMap to JS. |
1845 | // The result is a new Object object with property names being |
1846 | // the keys of the QVariantMap, and values being the values of |
1847 | // the QVariantMap converted to JS, recursively. |
1848 | static QV4::ReturnedValue variantMapToJS(QV4::ExecutionEngine *v4, const QVariantMap &vmap) |
1849 | { |
1850 | QV4::Scope scope(v4); |
1851 | QV4::ScopedObject o(scope, v4->newObject()); |
1852 | QV4::ScopedString s(scope); |
1853 | QV4::ScopedPropertyKey key(scope); |
1854 | QV4::ScopedValue v(scope); |
1855 | for (QVariantMap::const_iterator it = vmap.constBegin(), cend = vmap.constEnd(); it != cend; ++it) { |
1856 | s = v4->newIdentifier(text: it.key()); |
1857 | key = s->propertyKey(); |
1858 | v = variantToJS(v4, value: it.value()); |
1859 | if (key->isArrayIndex()) |
1860 | o->arraySet(index: key->asArrayIndex(), value: v); |
1861 | else |
1862 | o->insertMember(s, v); |
1863 | } |
1864 | return o.asReturnedValue(); |
1865 | } |
1866 | |
1867 | // Converts the meta-type defined by the given type and data to JS. |
1868 | // Returns the value if conversion succeeded, an empty handle otherwise. |
1869 | QV4::ReturnedValue ExecutionEngine::metaTypeToJS(int type, const void *data) |
1870 | { |
1871 | Q_ASSERT(data != nullptr); |
1872 | |
1873 | QVariant variant(type, data); |
1874 | if (QMetaType::Type(variant.userType()) == QMetaType::QVariant) { |
1875 | // unwrap it: this is tested in QJSEngine, and makes the most sense for |
1876 | // end-user code too. |
1877 | return variantToJS(v4: this, value: *reinterpret_cast<const QVariant*>(data)); |
1878 | } |
1879 | return fromVariant(variant); |
1880 | } |
1881 | |
1882 | int ExecutionEngine::maxJSStackSize() const |
1883 | { |
1884 | return m_maxJSStackSize; |
1885 | } |
1886 | |
1887 | int ExecutionEngine::maxGCStackSize() const |
1888 | { |
1889 | return m_maxGCStackSize; |
1890 | } |
1891 | |
1892 | ReturnedValue ExecutionEngine::global() |
1893 | { |
1894 | return globalObject->asReturnedValue(); |
1895 | } |
1896 | |
1897 | QQmlRefPointer<ExecutableCompilationUnit> ExecutionEngine::compileModule(const QUrl &url) |
1898 | { |
1899 | QQmlMetaType::CachedUnitLookupError cacheError = QQmlMetaType::CachedUnitLookupError::NoError; |
1900 | if (const QV4::CompiledData::Unit *cachedUnit = QQmlMetaType::findCachedCompilationUnit(uri: url, status: &cacheError)) { |
1901 | return ExecutableCompilationUnit::create( |
1902 | compilationUnit: QV4::CompiledData::CompilationUnit(cachedUnit, url.fileName(), url.toString())); |
1903 | } |
1904 | |
1905 | QFile f(QQmlFile::urlToLocalFileOrQrc(url)); |
1906 | if (!f.open(flags: QIODevice::ReadOnly)) { |
1907 | throwError(QStringLiteral("Could not open module %1 for reading" ).arg(a: url.toString())); |
1908 | return nullptr; |
1909 | } |
1910 | |
1911 | const QDateTime timeStamp = QFileInfo(f).lastModified(); |
1912 | |
1913 | const QString sourceCode = QString::fromUtf8(str: f.readAll()); |
1914 | f.close(); |
1915 | |
1916 | return compileModule(url, sourceCode, sourceTimeStamp: timeStamp); |
1917 | } |
1918 | |
1919 | |
1920 | QQmlRefPointer<ExecutableCompilationUnit> ExecutionEngine::compileModule( |
1921 | const QUrl &url, const QString &sourceCode, const QDateTime &sourceTimeStamp) |
1922 | { |
1923 | QList<QQmlJS::DiagnosticMessage> diagnostics; |
1924 | auto unit = Compiler::Codegen::compileModule(/*debugMode*/debugger() != nullptr, url: url.toString(), |
1925 | sourceCode, sourceTimeStamp, diagnostics: &diagnostics); |
1926 | for (const QQmlJS::DiagnosticMessage &m : diagnostics) { |
1927 | if (m.isError()) { |
1928 | throwSyntaxError(message: m.message, fileName: url.toString(), line: m.loc.startLine, column: m.loc.startColumn); |
1929 | return nullptr; |
1930 | } else { |
1931 | qWarning() << url << ':' << m.loc.startLine << ':' << m.loc.startColumn |
1932 | << ": warning: " << m.message; |
1933 | } |
1934 | } |
1935 | |
1936 | return ExecutableCompilationUnit::create(compilationUnit: std::move(unit)); |
1937 | } |
1938 | |
1939 | void ExecutionEngine::injectModule(const QQmlRefPointer<ExecutableCompilationUnit> &moduleUnit) |
1940 | { |
1941 | // Injection can happen from the QML type loader thread for example, but instantiation and |
1942 | // evaluation must be limited to the ExecutionEngine's thread. |
1943 | QMutexLocker moduleGuard(&moduleMutex); |
1944 | modules.insert(akey: moduleUnit->finalUrl(), avalue: moduleUnit); |
1945 | } |
1946 | |
1947 | QQmlRefPointer<ExecutableCompilationUnit> ExecutionEngine::moduleForUrl(const QUrl &_url, const ExecutableCompilationUnit *referrer) const |
1948 | { |
1949 | QUrl url = QQmlTypeLoader::normalize(unNormalizedUrl: _url); |
1950 | if (referrer) |
1951 | url = referrer->finalUrl().resolved(relative: url); |
1952 | |
1953 | QMutexLocker moduleGuard(&moduleMutex); |
1954 | auto existingModule = modules.find(akey: url); |
1955 | if (existingModule == modules.end()) |
1956 | return nullptr; |
1957 | return *existingModule; |
1958 | } |
1959 | |
1960 | QQmlRefPointer<ExecutableCompilationUnit> ExecutionEngine::loadModule(const QUrl &_url, const ExecutableCompilationUnit *referrer) |
1961 | { |
1962 | QUrl url = QQmlTypeLoader::normalize(unNormalizedUrl: _url); |
1963 | if (referrer) |
1964 | url = referrer->finalUrl().resolved(relative: url); |
1965 | |
1966 | QMutexLocker moduleGuard(&moduleMutex); |
1967 | auto existingModule = modules.find(akey: url); |
1968 | if (existingModule != modules.end()) |
1969 | return *existingModule; |
1970 | |
1971 | moduleGuard.unlock(); |
1972 | |
1973 | auto newModule = compileModule(url); |
1974 | if (newModule) { |
1975 | moduleGuard.relock(); |
1976 | modules.insert(akey: url, avalue: newModule); |
1977 | } |
1978 | |
1979 | return newModule; |
1980 | } |
1981 | |
1982 | void ExecutionEngine::initQmlGlobalObject() |
1983 | { |
1984 | initializeGlobal(); |
1985 | freezeObject(value: *globalObject); |
1986 | } |
1987 | |
1988 | void ExecutionEngine::initializeGlobal() |
1989 | { |
1990 | QV4::Scope scope(this); |
1991 | |
1992 | QV4::ScopedObject qt(scope, memoryManager->allocate<QV4::QtObject>(args: qmlEngine())); |
1993 | globalObject->defineDefaultProperty(QStringLiteral("Qt" ), value: qt); |
1994 | |
1995 | QV4::GlobalExtensions::init(globalObject, extensions: QJSEngine::AllExtensions); |
1996 | |
1997 | #if QT_CONFIG(qml_locale) |
1998 | QQmlLocale::registerStringLocaleCompare(engine: this); |
1999 | QQmlDateExtension::registerExtension(engine: this); |
2000 | QQmlNumberExtension::registerExtension(engine: this); |
2001 | #endif |
2002 | |
2003 | #if QT_CONFIG(qml_xml_http_request) |
2004 | qt_add_domexceptions(e: this); |
2005 | m_xmlHttpRequestData = qt_add_qmlxmlhttprequest(engine: this); |
2006 | #endif |
2007 | |
2008 | qt_add_sqlexceptions(engine: this); |
2009 | |
2010 | { |
2011 | for (uint i = 0; i < globalObject->internalClass()->size; ++i) { |
2012 | if (globalObject->internalClass()->nameMap.at(i).isString()) { |
2013 | QV4::PropertyKey id = globalObject->internalClass()->nameMap.at(i); |
2014 | m_illegalNames.insert(value: id.toQString()); |
2015 | } |
2016 | } |
2017 | } |
2018 | } |
2019 | |
2020 | const QSet<QString> &ExecutionEngine::illegalNames() const |
2021 | { |
2022 | return m_illegalNames; |
2023 | } |
2024 | |
2025 | void ExecutionEngine::setQmlEngine(QQmlEngine *engine) |
2026 | { |
2027 | m_qmlEngine = engine; |
2028 | initQmlGlobalObject(); |
2029 | } |
2030 | |
2031 | static void freeze_recursive(QV4::ExecutionEngine *v4, QV4::Object *object) |
2032 | { |
2033 | if (object->as<QV4::QObjectWrapper>() || object->internalClass()->isFrozen) |
2034 | return; |
2035 | |
2036 | QV4::Scope scope(v4); |
2037 | |
2038 | bool instanceOfObject = false; |
2039 | QV4::ScopedObject p(scope, object->getPrototypeOf()); |
2040 | while (p) { |
2041 | if (p->d() == v4->objectPrototype()->d()) { |
2042 | instanceOfObject = true; |
2043 | break; |
2044 | } |
2045 | p = p->getPrototypeOf(); |
2046 | } |
2047 | if (!instanceOfObject) |
2048 | return; |
2049 | |
2050 | Heap::InternalClass *frozen = object->internalClass()->frozen(); |
2051 | object->setInternalClass(frozen); // Immediately assign frozen to prevent it from getting GC'd |
2052 | |
2053 | QV4::ScopedObject o(scope); |
2054 | for (uint i = 0; i < frozen->size; ++i) { |
2055 | if (!frozen->nameMap.at(i).isStringOrSymbol()) |
2056 | continue; |
2057 | o = *object->propertyData(index: i); |
2058 | if (o) |
2059 | freeze_recursive(v4, object: o); |
2060 | } |
2061 | } |
2062 | |
2063 | void ExecutionEngine::freezeObject(const QV4::Value &value) |
2064 | { |
2065 | QV4::Scope scope(this); |
2066 | QV4::ScopedObject o(scope, value); |
2067 | freeze_recursive(v4: this, object: o); |
2068 | } |
2069 | |
2070 | void ExecutionEngine::startTimer(const QString &timerName) |
2071 | { |
2072 | if (!m_time.isValid()) |
2073 | m_time.start(); |
2074 | m_startedTimers[timerName] = m_time.elapsed(); |
2075 | } |
2076 | |
2077 | qint64 ExecutionEngine::stopTimer(const QString &timerName, bool *wasRunning) |
2078 | { |
2079 | if (!m_startedTimers.contains(akey: timerName)) { |
2080 | *wasRunning = false; |
2081 | return 0; |
2082 | } |
2083 | *wasRunning = true; |
2084 | qint64 startedAt = m_startedTimers.take(akey: timerName); |
2085 | return m_time.elapsed() - startedAt; |
2086 | } |
2087 | |
2088 | int ExecutionEngine::consoleCountHelper(const QString &file, quint16 line, quint16 column) |
2089 | { |
2090 | const QString key = file + QString::number(line) + QString::number(column); |
2091 | int number = m_consoleCount.value(akey: key, adefaultValue: 0); |
2092 | number++; |
2093 | m_consoleCount.insert(akey: key, avalue: number); |
2094 | return number; |
2095 | } |
2096 | |
2097 | void ExecutionEngine::setExtensionData(int index, Deletable *data) |
2098 | { |
2099 | if (m_extensionData.count() <= index) |
2100 | m_extensionData.resize(asize: index + 1); |
2101 | |
2102 | if (m_extensionData.at(i: index)) |
2103 | delete m_extensionData.at(i: index); |
2104 | |
2105 | m_extensionData[index] = data; |
2106 | } |
2107 | |
2108 | // Converts a JS value to a meta-type. |
2109 | // data must point to a place that can store a value of the given type. |
2110 | // Returns true if conversion succeeded, false otherwise. |
2111 | bool ExecutionEngine::metaTypeFromJS(const Value *value, int type, void *data) |
2112 | { |
2113 | // check if it's one of the types we know |
2114 | switch (QMetaType::Type(type)) { |
2115 | case QMetaType::Bool: |
2116 | *reinterpret_cast<bool*>(data) = value->toBoolean(); |
2117 | return true; |
2118 | case QMetaType::Int: |
2119 | *reinterpret_cast<int*>(data) = value->toInt32(); |
2120 | return true; |
2121 | case QMetaType::UInt: |
2122 | *reinterpret_cast<uint*>(data) = value->toUInt32(); |
2123 | return true; |
2124 | case QMetaType::LongLong: |
2125 | *reinterpret_cast<qlonglong*>(data) = qlonglong(value->toInteger()); |
2126 | return true; |
2127 | case QMetaType::ULongLong: |
2128 | *reinterpret_cast<qulonglong*>(data) = qulonglong(value->toInteger()); |
2129 | return true; |
2130 | case QMetaType::Double: |
2131 | *reinterpret_cast<double*>(data) = value->toNumber(); |
2132 | return true; |
2133 | case QMetaType::QString: |
2134 | if (value->isUndefined() || value->isNull()) |
2135 | *reinterpret_cast<QString*>(data) = QString(); |
2136 | else |
2137 | *reinterpret_cast<QString*>(data) = value->toQString(); |
2138 | return true; |
2139 | case QMetaType::QByteArray: |
2140 | if (const ArrayBuffer *ab = value->as<ArrayBuffer>()) |
2141 | *reinterpret_cast<QByteArray*>(data) = ab->asByteArray(); |
2142 | else |
2143 | *reinterpret_cast<QByteArray*>(data) = QByteArray(); |
2144 | return true; |
2145 | case QMetaType::Float: |
2146 | *reinterpret_cast<float*>(data) = value->toNumber(); |
2147 | return true; |
2148 | case QMetaType::Short: |
2149 | *reinterpret_cast<short*>(data) = short(value->toInt32()); |
2150 | return true; |
2151 | case QMetaType::UShort: |
2152 | *reinterpret_cast<unsigned short*>(data) = value->toUInt16(); |
2153 | return true; |
2154 | case QMetaType::Char: |
2155 | *reinterpret_cast<char*>(data) = char(value->toInt32()); |
2156 | return true; |
2157 | case QMetaType::UChar: |
2158 | *reinterpret_cast<unsigned char*>(data) = (unsigned char)(value->toInt32()); |
2159 | return true; |
2160 | case QMetaType::QChar: |
2161 | if (String *s = value->stringValue()) { |
2162 | QString str = s->toQString(); |
2163 | *reinterpret_cast<QChar*>(data) = str.isEmpty() ? QChar() : str.at(i: 0); |
2164 | } else { |
2165 | *reinterpret_cast<QChar*>(data) = QChar(ushort(value->toUInt16())); |
2166 | } |
2167 | return true; |
2168 | case QMetaType::QDateTime: |
2169 | if (const QV4::DateObject *d = value->as<DateObject>()) { |
2170 | *reinterpret_cast<QDateTime *>(data) = d->toQDateTime(); |
2171 | return true; |
2172 | } break; |
2173 | case QMetaType::QDate: |
2174 | if (const QV4::DateObject *d = value->as<DateObject>()) { |
2175 | *reinterpret_cast<QDate *>(data) = d->toQDateTime().date(); |
2176 | return true; |
2177 | } break; |
2178 | case QMetaType::QRegExp: |
2179 | if (const QV4::RegExpObject *r = value->as<QV4::RegExpObject>()) { |
2180 | *reinterpret_cast<QRegExp *>(data) = r->toQRegExp(); |
2181 | return true; |
2182 | } break; |
2183 | #if QT_CONFIG(regularexpression) |
2184 | case QMetaType::QRegularExpression: |
2185 | if (const QV4::RegExpObject *r = value->as<QV4::RegExpObject>()) { |
2186 | *reinterpret_cast<QRegularExpression *>(data) = r->toQRegularExpression(); |
2187 | return true; |
2188 | } break; |
2189 | #endif |
2190 | case QMetaType::QObjectStar: { |
2191 | const QV4::QObjectWrapper *qobjectWrapper = value->as<QV4::QObjectWrapper>(); |
2192 | if (qobjectWrapper || value->isNull()) { |
2193 | *reinterpret_cast<QObject* *>(data) = qtObjectFromJS(engine: this, value: *value); |
2194 | return true; |
2195 | } break; |
2196 | } |
2197 | case QMetaType::QStringList: { |
2198 | const QV4::ArrayObject *a = value->as<QV4::ArrayObject>(); |
2199 | if (a) { |
2200 | *reinterpret_cast<QStringList *>(data) = a->toQStringList(); |
2201 | return true; |
2202 | } |
2203 | break; |
2204 | } |
2205 | case QMetaType::QVariantList: { |
2206 | const QV4::ArrayObject *a = value->as<QV4::ArrayObject>(); |
2207 | if (a) { |
2208 | *reinterpret_cast<QVariantList *>(data) = toVariant(value: *a, /*typeHint*/-1, /*createJSValueForObjects*/false).toList(); |
2209 | return true; |
2210 | } |
2211 | break; |
2212 | } |
2213 | case QMetaType::QVariantMap: { |
2214 | const QV4::Object *o = value->as<QV4::Object>(); |
2215 | if (o) { |
2216 | *reinterpret_cast<QVariantMap *>(data) = variantMapFromJS(o); |
2217 | return true; |
2218 | } |
2219 | break; |
2220 | } |
2221 | case QMetaType::QVariant: |
2222 | *reinterpret_cast<QVariant*>(data) = toVariant(value: *value, /*typeHint*/-1, /*createJSValueForObjects*/false); |
2223 | return true; |
2224 | case QMetaType::QJsonValue: |
2225 | *reinterpret_cast<QJsonValue *>(data) = QV4::JsonObject::toJsonValue(value: *value); |
2226 | return true; |
2227 | case QMetaType::QJsonObject: { |
2228 | *reinterpret_cast<QJsonObject *>(data) = QV4::JsonObject::toJsonObject(o: value->as<Object>()); |
2229 | return true; |
2230 | } |
2231 | case QMetaType::QJsonArray: { |
2232 | const QV4::ArrayObject *a = value->as<ArrayObject>(); |
2233 | if (a) { |
2234 | *reinterpret_cast<QJsonArray *>(data) = JsonObject::toJsonArray(a); |
2235 | return true; |
2236 | } |
2237 | break; |
2238 | } |
2239 | default: |
2240 | ; |
2241 | } |
2242 | |
2243 | { |
2244 | const QQmlValueTypeWrapper *vtw = value->as<QQmlValueTypeWrapper>(); |
2245 | if (vtw && vtw->typeId() == type) { |
2246 | return vtw->toGadget(data); |
2247 | } |
2248 | } |
2249 | |
2250 | #if 0 |
2251 | if (isQtVariant(value)) { |
2252 | const QVariant &var = variantValue(value); |
2253 | // ### Enable once constructInPlace() is in qt master. |
2254 | if (var.userType() == type) { |
2255 | QMetaType::constructInPlace(type, data, var.constData()); |
2256 | return true; |
2257 | } |
2258 | if (var.canConvert(type)) { |
2259 | QVariant vv = var; |
2260 | vv.convert(type); |
2261 | Q_ASSERT(vv.userType() == type); |
2262 | QMetaType::constructInPlace(type, data, vv.constData()); |
2263 | return true; |
2264 | } |
2265 | |
2266 | } |
2267 | #endif |
2268 | |
2269 | // Try to use magic; for compatibility with qjsvalue_cast. |
2270 | |
2271 | QByteArray name = QMetaType::typeName(type); |
2272 | if (convertToNativeQObject(e: this, value: *value, targetType: name, result: reinterpret_cast<void* *>(data))) |
2273 | return true; |
2274 | if (value->as<QV4::VariantObject>() && name.endsWith(c: '*')) { |
2275 | int valueType = QMetaType::type(typeName: name.left(len: name.size()-1)); |
2276 | QVariant &var = value->as<QV4::VariantObject>()->d()->data(); |
2277 | if (valueType == var.userType()) { |
2278 | // We have T t, T* is requested, so return &t. |
2279 | *reinterpret_cast<void* *>(data) = var.data(); |
2280 | return true; |
2281 | } else if (Object *o = value->objectValue()) { |
2282 | // Look in the prototype chain. |
2283 | QV4::Scope scope(this); |
2284 | QV4::ScopedObject proto(scope, o->getPrototypeOf()); |
2285 | while (proto) { |
2286 | bool canCast = false; |
2287 | if (QV4::VariantObject *vo = proto->as<QV4::VariantObject>()) { |
2288 | const QVariant &v = vo->d()->data(); |
2289 | canCast = (type == v.userType()) || (valueType && (valueType == v.userType())); |
2290 | } |
2291 | else if (proto->as<QV4::QObjectWrapper>()) { |
2292 | QByteArray className = name.left(len: name.size()-1); |
2293 | QV4::ScopedObject p(scope, proto.getPointer()); |
2294 | if (QObject *qobject = qtObjectFromJS(engine: this, value: p)) |
2295 | canCast = qobject->qt_metacast(className) != nullptr; |
2296 | } |
2297 | if (canCast) { |
2298 | QByteArray varTypeName = QMetaType::typeName(type: var.userType()); |
2299 | if (varTypeName.endsWith(c: '*')) |
2300 | *reinterpret_cast<void* *>(data) = *reinterpret_cast<void* *>(var.data()); |
2301 | else |
2302 | *reinterpret_cast<void* *>(data) = var.data(); |
2303 | return true; |
2304 | } |
2305 | proto = proto->getPrototypeOf(); |
2306 | } |
2307 | } |
2308 | } else if (value->isNull() && name.endsWith(c: '*')) { |
2309 | *reinterpret_cast<void* *>(data) = nullptr; |
2310 | return true; |
2311 | } else if (type == qMetaTypeId<QJSValue>()) { |
2312 | *reinterpret_cast<QJSValue*>(data) = QJSValue(this, value->asReturnedValue()); |
2313 | return true; |
2314 | } |
2315 | |
2316 | return false; |
2317 | } |
2318 | |
2319 | static bool convertToNativeQObject(QV4::ExecutionEngine *e, const QV4::Value &value, const QByteArray &targetType, void **result) |
2320 | { |
2321 | if (!targetType.endsWith(c: '*')) |
2322 | return false; |
2323 | if (QObject *qobject = qtObjectFromJS(engine: e, value)) { |
2324 | int start = targetType.startsWith(c: "const " ) ? 6 : 0; |
2325 | QByteArray className = targetType.mid(index: start, len: targetType.size()-start-1); |
2326 | if (void *instance = qobject->qt_metacast(className)) { |
2327 | *result = instance; |
2328 | return true; |
2329 | } |
2330 | } |
2331 | return false; |
2332 | } |
2333 | |
2334 | static QObject *qtObjectFromJS(QV4::ExecutionEngine *engine, const QV4::Value &value) |
2335 | { |
2336 | if (!value.isObject()) |
2337 | return nullptr; |
2338 | |
2339 | QV4::Scope scope(engine); |
2340 | QV4::Scoped<QV4::VariantObject> v(scope, value); |
2341 | |
2342 | if (v) { |
2343 | QVariant variant = v->d()->data(); |
2344 | int type = variant.userType(); |
2345 | if (type == QMetaType::QObjectStar) |
2346 | return *reinterpret_cast<QObject* const *>(variant.constData()); |
2347 | } |
2348 | QV4::Scoped<QV4::QObjectWrapper> wrapper(scope, value); |
2349 | if (!wrapper) |
2350 | return nullptr; |
2351 | return wrapper->object(); |
2352 | } |
2353 | |
2354 | struct QV4EngineRegistrationData |
2355 | { |
2356 | QV4EngineRegistrationData() : extensionCount(0) {} |
2357 | |
2358 | QMutex mutex; |
2359 | int extensionCount; |
2360 | }; |
2361 | Q_GLOBAL_STATIC(QV4EngineRegistrationData, registrationData); |
2362 | |
2363 | QMutex *ExecutionEngine::registrationMutex() |
2364 | { |
2365 | return ®istrationData()->mutex; |
2366 | } |
2367 | |
2368 | int ExecutionEngine::registerExtension() |
2369 | { |
2370 | return registrationData()->extensionCount++; |
2371 | } |
2372 | |
2373 | #if QT_CONFIG(qml_network) |
2374 | QNetworkAccessManager *QV4::detail::getNetworkAccessManager(ExecutionEngine *engine) |
2375 | { |
2376 | return engine->qmlEngine()->networkAccessManager(); |
2377 | } |
2378 | #endif // qml_network |
2379 | |
2380 | QT_END_NAMESPACE |
2381 | |