//
// Check a CodeDirectory for basic integrity. This should ensure that the
// version is understood by our code, and that the internal structure
// (offsets etc.) is intact. In particular, it must make sure that no offsets
// point outside the CodeDirectory.
// Throws if the directory is corrupted or out of versioning bounds.
// Returns if the version is usable (perhaps with degraded features due to
// compatibility hacks).
//
// Note: There are some things we don't bother checking because they won't
// cause crashes, and will just be flagged as nonsense later. For example,
// a Bad Guy could overlap the identifier and hash fields, which is nonsense
// but not dangerous.
//
void CodeDirectory::checkIntegrity() const
{
// check version for support
if (!this->validateBlob())
MacOSError::throwMe(errSecCSSignatureInvalid); // busted
if (version > compatibilityLimit)
MacOSError::throwMe(errSecCSSignatureUnsupported); // too new - no clue
if (version < earliestVersion)
MacOSError::throwMe(errSecCSSignatureUnsupported); // too old - can't support
if (version > currentVersion)
secdebug("codedir", "%p version 0x%x newer than current 0x%x",
this, uint32_t(version), currentVersion);
// now check interior offsets for validity
if (!stringAt(identOffset))
MacOSError::throwMe(errSecCSSignatureFailed); // identifier out of blob range
if (version >= supportsTeamID && teamIDOffset != 0 && !stringAt(teamIDOffset))
MacOSError::throwMe(errSecCSSignatureFailed); // identifier out of blob range
if (!contains(hashOffset - int64_t(hashSize) * nSpecialSlots, hashSize * (int64_t(nSpecialSlots) + nCodeSlots)))
MacOSError::throwMe(errSecCSSignatureFailed); // hash array out of blob range
if (const Scatter *scatter = this->scatterVector()) {
// the optional scatter vector is terminated with an element having (count == 0)
unsigned int pagesConsumed = 0;
for (;; scatter++) {
if (!contains(scatter, sizeof(Scatter)))
MacOSError::throwMe(errSecCSSignatureFailed);
if (scatter->count == 0)
break;
pagesConsumed += scatter->count;
}
if (!contains((*this)[pagesConsumed-1], hashSize)) // referenced too many main hash slots
MacOSError::throwMe(errSecCSSignatureFailed);
}
}
bool Compiler::addImport(const QV4::CompiledData::Import *import, QList<QQmlError> *errors)
{
Q_D(Compiler);
const QString &importUri = stringAt(import->uriIndex);
const QString &importQualifier = stringAt(import->qualifierIndex);
if (import->type == QV4::CompiledData::Import::ImportScript) {
// TBD: qqmltypeloader.cpp:1320
QmlCompilation::ScriptReference scriptRef;
scriptRef.location = import->location;
scriptRef.qualifier = importQualifier;
scriptRef.compilation = NULL;
d->compilation->scripts.append(scriptRef);
} else if (import->type == QV4::CompiledData::Import::ImportLibrary) {
QString qmldirFilePath;
QString qmldirUrl;
if (QQmlMetaType::isLockedModule(importUri, import->majorVersion)) {
//Locked modules are checked first, to save on filesystem checks
if (!d->compilation->importCache->addLibraryImport(d->compilation->importDatabase, importUri, importQualifier, import->majorVersion,
import->minorVersion, QString(), QString(), false, errors))
return false;
} else if (d->compilation->importCache->locateQmldir(d->compilation->importDatabase, importUri, import->majorVersion, import->minorVersion,
&qmldirFilePath, &qmldirUrl)) {
// This is a local library import
if (!d->compilation->importCache->addLibraryImport(d->compilation->importDatabase, importUri, importQualifier, import->majorVersion,
import->minorVersion, qmldirFilePath, qmldirUrl, false, errors))
return false;
if (!importQualifier.isEmpty()) {
// Does this library contain any qualified scripts?
QUrl libraryUrl(qmldirUrl);
QQmlTypeLoader* typeLoader = &QQmlEnginePrivate::get(d->compilation->engine)->typeLoader;
const QQmlTypeLoader::QmldirContent *qmldir = typeLoader->qmldirContent(qmldirFilePath, qmldirUrl);
foreach (const QQmlDirParser::Script &script, qmldir->scripts()) {
// TBD: qqmltypeloader.cpp:1343
qDebug() << "Library contains scripts";
QQmlError error;
error.setDescription("Libraries with scripts not supported");
appendError(error);
return false;
}
}
} else {
bool PropertyCacheCreator::buildMetaObjectRecursively(int objectIndex, int referencingObjectIndex, const QV4::CompiledData::Binding *instantiatingBinding)
{
const QmlIR::Object *obj = qmlObjects.at(objectIndex);
QQmlPropertyCache *baseTypeCache = 0;
QQmlPropertyData *instantiatingProperty = 0;
if (instantiatingBinding && instantiatingBinding->type == QV4::CompiledData::Binding::Type_GroupProperty) {
Q_ASSERT(referencingObjectIndex >= 0);
QQmlPropertyCache *parentCache = propertyCaches.at(referencingObjectIndex);
Q_ASSERT(parentCache);
Q_ASSERT(instantiatingBinding->propertyNameIndex != 0);
bool notInRevision = false;
instantiatingProperty = QmlIR::PropertyResolver(parentCache).property(stringAt(instantiatingBinding->propertyNameIndex), ¬InRevision);
if (instantiatingProperty) {
if (instantiatingProperty->isQObject()) {
baseTypeCache = enginePrivate->rawPropertyCacheForType(instantiatingProperty->propType);
Q_ASSERT(baseTypeCache);
} else if (QQmlValueType *vt = QQmlValueTypeFactory::valueType(instantiatingProperty->propType)) {
baseTypeCache = enginePrivate->cache(vt->metaObject());
Q_ASSERT(baseTypeCache);
}
}
}
bool needVMEMetaObject = obj->propertyCount() != 0 || obj->signalCount() != 0 || obj->functionCount() != 0;
if (!needVMEMetaObject) {
for (const QmlIR::Binding *binding = obj->firstBinding(); binding; binding = binding->next) {
if (binding->type == QV4::CompiledData::Binding::Type_Object && (binding->flags & QV4::CompiledData::Binding::IsOnAssignment)) {
// On assignments are implemented using value interceptors, which require a VME meta object.
needVMEMetaObject = true;
// If the on assignment is inside a group property, we need to distinguish between QObject based
// group properties and value type group properties. For the former the base type is derived from
// the property that references us, for the latter we only need a meta-object on the referencing object
// because interceptors can't go to the shared value type instances.
if (instantiatingProperty && QQmlValueTypeFactory::isValueType(instantiatingProperty->propType)) {
needVMEMetaObject = false;
if (!ensureMetaObject(referencingObjectIndex))
return false;
}
break;
}
}
}
if (obj->inheritedTypeNameIndex != 0) {
QQmlCompiledData::TypeReference *typeRef = resolvedTypes->value(obj->inheritedTypeNameIndex);
Q_ASSERT(typeRef);
if (typeRef->isFullyDynamicType) {
if (obj->propertyCount() > 0) {
compiler->recordError(obj->location, tr("Fully dynamic types cannot declare new properties."));
return false;
}
if (obj->signalCount() > 0) {
compiler->recordError(obj->location, tr("Fully dynamic types cannot declare new signals."));
return false;
}
if (obj->functionCount() > 0) {
compiler->recordError(obj->location, tr("Fully Dynamic types cannot declare new functions."));
return false;
}
}
baseTypeCache = typeRef->createPropertyCache(QQmlEnginePrivate::get(enginePrivate));
Q_ASSERT(baseTypeCache);
} else if (instantiatingBinding && instantiatingBinding->isAttachedProperty()) {
QQmlCompiledData::TypeReference *typeRef = resolvedTypes->value(instantiatingBinding->propertyNameIndex);
Q_ASSERT(typeRef);
const QMetaObject *attachedMo = typeRef->type ? typeRef->type->attachedPropertiesType() : 0;
if (!attachedMo) {
compiler->recordError(instantiatingBinding->location, tr("Non-existent attached object"));
return false;
}
baseTypeCache = enginePrivate->cache(attachedMo);
Q_ASSERT(baseTypeCache);
}
if (needVMEMetaObject) {
if (!createMetaObject(objectIndex, obj, baseTypeCache))
return false;
} else if (baseTypeCache) {
propertyCaches[objectIndex] = baseTypeCache;
baseTypeCache->addref();
}
if (propertyCaches.at(objectIndex)) {
for (const QmlIR::Binding *binding = obj->firstBinding(); binding; binding = binding->next)
if (binding->type >= QV4::CompiledData::Binding::Type_Object) {
if (!buildMetaObjectRecursively(binding->value.objectIndex, objectIndex, binding))
return false;
}
}
return true;
}
bool PropertyCacheCreator::createMetaObject(int objectIndex, const QmlIR::Object *obj, QQmlPropertyCache *baseTypeCache)
{
QQmlPropertyCache *cache = baseTypeCache->copyAndReserve(QQmlEnginePrivate::get(enginePrivate),
obj->propertyCount(),
obj->functionCount() + obj->propertyCount() + obj->signalCount(),
obj->signalCount() + obj->propertyCount());
propertyCaches[objectIndex] = cache;
struct TypeData {
QV4::CompiledData::Property::Type dtype;
int metaType;
} builtinTypes[] = {
{ QV4::CompiledData::Property::Var, qMetaTypeId<QJSValue>() },
{ QV4::CompiledData::Property::Variant, QMetaType::QVariant },
{ QV4::CompiledData::Property::Int, QMetaType::Int },
{ QV4::CompiledData::Property::Bool, QMetaType::Bool },
{ QV4::CompiledData::Property::Real, QMetaType::Double },
{ QV4::CompiledData::Property::String, QMetaType::QString },
{ QV4::CompiledData::Property::Url, QMetaType::QUrl },
{ QV4::CompiledData::Property::Color, QMetaType::QColor },
{ QV4::CompiledData::Property::Font, QMetaType::QFont },
{ QV4::CompiledData::Property::Time, QMetaType::QTime },
{ QV4::CompiledData::Property::Date, QMetaType::QDate },
{ QV4::CompiledData::Property::DateTime, QMetaType::QDateTime },
{ QV4::CompiledData::Property::Rect, QMetaType::QRectF },
{ QV4::CompiledData::Property::Point, QMetaType::QPointF },
{ QV4::CompiledData::Property::Size, QMetaType::QSizeF },
{ QV4::CompiledData::Property::Vector2D, QMetaType::QVector2D },
{ QV4::CompiledData::Property::Vector3D, QMetaType::QVector3D },
{ QV4::CompiledData::Property::Vector4D, QMetaType::QVector4D },
{ QV4::CompiledData::Property::Matrix4x4, QMetaType::QMatrix4x4 },
{ QV4::CompiledData::Property::Quaternion, QMetaType::QQuaternion }
};
static const uint builtinTypeCount = sizeof(builtinTypes) / sizeof(TypeData);
QByteArray newClassName;
if (objectIndex == compiler->rootObjectIndex()) {
QString path = compiler->data()->url.path();
int lastSlash = path.lastIndexOf(QLatin1Char('/'));
if (lastSlash > -1) {
QString nameBase = path.mid(lastSlash + 1, path.length()-lastSlash-5);
if (!nameBase.isEmpty() && nameBase.at(0).isUpper())
newClassName = nameBase.toUtf8() + "_QMLTYPE_" +
QByteArray::number(classIndexCounter.fetchAndAddRelaxed(1));
}
}
if (newClassName.isEmpty()) {
newClassName = QQmlMetaObject(baseTypeCache).className();
newClassName.append("_QML_");
newClassName.append(QByteArray::number(classIndexCounter.fetchAndAddRelaxed(1)));
}
cache->_dynamicClassName = newClassName;
int aliasCount = 0;
int varPropCount = 0;
QmlIR::PropertyResolver resolver(baseTypeCache);
for (const QmlIR::Property *p = obj->firstProperty(); p; p = p->next) {
if (p->type == QV4::CompiledData::Property::Alias)
aliasCount++;
else if (p->type == QV4::CompiledData::Property::Var)
varPropCount++;
// No point doing this for both the alias and non alias cases
bool notInRevision = false;
QQmlPropertyData *d = resolver.property(stringAt(p->nameIndex), ¬InRevision);
if (d && d->isFinal()) {
compiler->recordError(p->location, tr("Cannot override FINAL property"));
return false;
}
}
typedef QQmlVMEMetaData VMD;
QByteArray &dynamicData = vmeMetaObjects[objectIndex] = QByteArray(sizeof(QQmlVMEMetaData)
+ obj->propertyCount() * sizeof(VMD::PropertyData)
+ obj->functionCount() * sizeof(VMD::MethodData)
+ aliasCount * sizeof(VMD::AliasData), 0);
int effectivePropertyIndex = cache->propertyIndexCacheStart;
int effectiveMethodIndex = cache->methodIndexCacheStart;
// For property change signal override detection.
// We prepopulate a set of signal names which already exist in the object,
// and throw an error if there is a signal/method defined as an override.
QSet<QString> seenSignals;
seenSignals << QStringLiteral("destroyed") << QStringLiteral("parentChanged") << QStringLiteral("objectNameChanged");
QQmlPropertyCache *parentCache = cache;
while ((parentCache = parentCache->parent())) {
if (int pSigCount = parentCache->signalCount()) {
int pSigOffset = parentCache->signalOffset();
for (int i = pSigOffset; i < pSigCount; ++i) {
QQmlPropertyData *currPSig = parentCache->signal(i);
// XXX TODO: find a better way to get signal name from the property data :-/
for (QQmlPropertyCache::StringCache::ConstIterator iter = parentCache->stringCache.begin();
iter != parentCache->stringCache.end(); ++iter) {
if (currPSig == (*iter).second) {
seenSignals.insert(iter.key());
break;
}
}
}
}
}
// First set up notify signals for properties - first normal, then var, then alias
enum { NSS_Normal = 0, NSS_Var = 1, NSS_Alias = 2 };
for (int ii = NSS_Normal; ii <= NSS_Alias; ++ii) { // 0 == normal, 1 == var, 2 == alias
if (ii == NSS_Var && varPropCount == 0) continue;
else if (ii == NSS_Alias && aliasCount == 0) continue;
for (const QmlIR::Property *p = obj->firstProperty(); p; p = p->next) {
if ((ii == NSS_Normal && (p->type == QV4::CompiledData::Property::Alias ||
p->type == QV4::CompiledData::Property::Var)) ||
((ii == NSS_Var) && (p->type != QV4::CompiledData::Property::Var)) ||
((ii == NSS_Alias) && (p->type != QV4::CompiledData::Property::Alias)))
continue;
quint32 flags = QQmlPropertyData::IsSignal | QQmlPropertyData::IsFunction |
QQmlPropertyData::IsVMESignal;
QString changedSigName = stringAt(p->nameIndex) + QLatin1String("Changed");
seenSignals.insert(changedSigName);
cache->appendSignal(changedSigName, flags, effectiveMethodIndex++);
}
}
// Dynamic signals
for (const QmlIR::Signal *s = obj->firstSignal(); s; s = s->next) {
const int paramCount = s->parameters->count;
QList<QByteArray> names;
QVarLengthArray<int, 10> paramTypes(paramCount?(paramCount + 1):0);
if (paramCount) {
paramTypes[0] = paramCount;
QmlIR::SignalParameter *param = s->parameters->first;
for (int i = 0; i < paramCount; ++i, param = param->next) {
names.append(stringAt(param->nameIndex).toUtf8());
if (param->type < builtinTypeCount) {
// built-in type
paramTypes[i + 1] = builtinTypes[param->type].metaType;
} else {
// lazily resolved type
Q_ASSERT(param->type == QV4::CompiledData::Property::Custom);
const QString customTypeName = stringAt(param->customTypeNameIndex);
QQmlType *qmltype = 0;
if (!imports->resolveType(customTypeName, &qmltype, 0, 0, 0)) {
compiler->recordError(s->location, tr("Invalid signal parameter type: %1").arg(customTypeName));
return false;
}
if (qmltype->isComposite()) {
// Composite type usage
qDebug() << "Composite type usage2" << qmltype->sourceUrl() << "Line" << param->location.line << "Col" << param->location.column;
QmlCompilation::TypeReference *typeRef = compiler->findTypeRef(param->customTypeNameIndex);
Q_ASSERT(typeRef->component->compiledData != NULL);
paramTypes[i + 1] = typeRef->component->compiledData->metaTypeId;
} else {
paramTypes[i + 1] = qmltype->typeId();
}
}
}
}
((QQmlVMEMetaData *)dynamicData.data())->signalCount++;
quint32 flags = QQmlPropertyData::IsSignal | QQmlPropertyData::IsFunction |
QQmlPropertyData::IsVMESignal;
if (paramCount)
flags |= QQmlPropertyData::HasArguments;
QString signalName = stringAt(s->nameIndex);
if (seenSignals.contains(signalName)) {
compiler->recordError(s->location, tr("Duplicate signal name: invalid override of property change signal or superclass signal"));
return false;
}
seenSignals.insert(signalName);
cache->appendSignal(signalName, flags, effectiveMethodIndex++,
paramCount?paramTypes.constData():0, names);
}
// Dynamic slots
for (const QmlIR::Function *s = obj->firstFunction(); s; s = s->next) {
QQmlJS::AST::FunctionDeclaration *astFunction = s->functionDeclaration;
quint32 flags = QQmlPropertyData::IsFunction | QQmlPropertyData::IsVMEFunction;
if (astFunction->formals)
flags |= QQmlPropertyData::HasArguments;
QString slotName = astFunction->name.toString();
if (seenSignals.contains(slotName)) {
compiler->recordError(s->location, tr("Duplicate method name: invalid override of property change signal or superclass signal"));
return false;
}
// Note: we don't append slotName to the seenSignals list, since we don't
// protect against overriding change signals or methods with properties.
QList<QByteArray> parameterNames;
QQmlJS::AST::FormalParameterList *param = astFunction->formals;
while (param) {
parameterNames << param->name.toUtf8();
param = param->next;
}
cache->appendMethod(slotName, flags, effectiveMethodIndex++, parameterNames);
}
// Dynamic properties (except var and aliases)
int effectiveSignalIndex = cache->signalHandlerIndexCacheStart;
int propertyIdx = 0;
for (const QmlIR::Property *p = obj->firstProperty(); p; p = p->next, ++propertyIdx) {
if (p->type == QV4::CompiledData::Property::Alias ||
p->type == QV4::CompiledData::Property::Var)
continue;
int propertyType = 0;
int vmePropertyType = 0;
quint32 propertyFlags = 0;
if (p->type < builtinTypeCount) {
propertyType = builtinTypes[p->type].metaType;
vmePropertyType = propertyType;
if (p->type == QV4::CompiledData::Property::Variant)
propertyFlags |= QQmlPropertyData::IsQVariant;
} else {
Q_ASSERT(p->type == QV4::CompiledData::Property::CustomList ||
p->type == QV4::CompiledData::Property::Custom);
QQmlType *qmltype = 0;
if (!imports->resolveType(stringAt(p->customTypeNameIndex), &qmltype, 0, 0, 0)) {
compiler->recordError(p->location, tr("Invalid property type"));
return false;
}
Q_ASSERT(qmltype);
if (qmltype->isComposite()) {
// Composite type usage
QmlCompilation::TypeReference *typeRef = compiler->findTypeRef(p->customTypeNameIndex);
Q_ASSERT(typeRef->component->compiledData != NULL);
QQmlCompiledData *data = typeRef->component->compiledData;
if (p->type == QV4::CompiledData::Property::Custom) {
propertyType = data->metaTypeId;
vmePropertyType = QMetaType::QObjectStar;
} else {
propertyType = data->listMetaTypeId;
vmePropertyType = qMetaTypeId<QQmlListProperty<QObject> >();
}
} else {
if (p->type == QV4::CompiledData::Property::Custom) {
propertyType = qmltype->typeId();
vmePropertyType = QMetaType::QObjectStar;
} else {
propertyType = qmltype->qListTypeId();
vmePropertyType = qMetaTypeId<QQmlListProperty<QObject> >();
}
}
if (p->type == QV4::CompiledData::Property::Custom)
propertyFlags |= QQmlPropertyData::IsQObjectDerived;
else
propertyFlags |= QQmlPropertyData::IsQList;
}
if ((!p->flags & QV4::CompiledData::Property::IsReadOnly) && p->type != QV4::CompiledData::Property::CustomList)
propertyFlags |= QQmlPropertyData::IsWritable;
QString propertyName = stringAt(p->nameIndex);
if (propertyIdx == obj->indexOfDefaultProperty) cache->_defaultPropertyName = propertyName;
cache->appendProperty(propertyName, propertyFlags, effectivePropertyIndex++,
propertyType, effectiveSignalIndex);
effectiveSignalIndex++;
VMD *vmd = (QQmlVMEMetaData *)dynamicData.data();
(vmd->propertyData() + vmd->propertyCount)->propertyType = vmePropertyType;
vmd->propertyCount++;
}
// Now do var properties
propertyIdx = 0;
for (const QmlIR::Property *p = obj->firstProperty(); p; p = p->next, ++propertyIdx) {
if (p->type != QV4::CompiledData::Property::Var)
continue;
quint32 propertyFlags = QQmlPropertyData::IsVarProperty;
if (!p->flags & QV4::CompiledData::Property::IsReadOnly)
propertyFlags |= QQmlPropertyData::IsWritable;
VMD *vmd = (QQmlVMEMetaData *)dynamicData.data();
(vmd->propertyData() + vmd->propertyCount)->propertyType = QMetaType::QVariant;
vmd->propertyCount++;
((QQmlVMEMetaData *)dynamicData.data())->varPropertyCount++;
QString propertyName = stringAt(p->nameIndex);
if (propertyIdx == obj->indexOfDefaultProperty) cache->_defaultPropertyName = propertyName;
cache->appendProperty(propertyName, propertyFlags, effectivePropertyIndex++,
QMetaType::QVariant, effectiveSignalIndex);
effectiveSignalIndex++;
}
// Alias property count. Actual data is setup in buildDynamicMetaAliases
((QQmlVMEMetaData *)dynamicData.data())->aliasCount = aliasCount;
// Dynamic slot data - comes after the property data
for (const QmlIR::Function *s = obj->firstFunction(); s; s = s->next) {
QQmlJS::AST::FunctionDeclaration *astFunction = s->functionDeclaration;
int formalsCount = 0;
QQmlJS::AST::FormalParameterList *param = astFunction->formals;
while (param) {
formalsCount++;
param = param->next;
}
VMD::MethodData methodData = { /* runtimeFunctionIndex*/ 0, // ###
formalsCount,
/* s->location.start.line */0 }; // ###
VMD *vmd = (QQmlVMEMetaData *)dynamicData.data();
VMD::MethodData &md = *(vmd->methodData() + vmd->methodCount);
vmd->methodCount++;
md = methodData;
}
return true;
}
bool QmcTypeUnitComponentAndAliasResolver::addAliases()
{
// add aliases
//QmcUnitAlias al = {0, 0, 0, 8, 0, 0, 24};
//qmcTypeUnit->unit->aliases.append(al);
// see QQmlComponentAndAliasResolver::resolve
int effectiveAliasIndex = -1;
int effectivePropertyIndex = -1;
int effectiveSignalIndex = -1;
int currentObjectIndex = -1;
QQmlPropertyCache *propertyCache = NULL;
foreach (const QmcUnitAlias &alias, qmcTypeUnit->unit->aliases) {
if ((int)alias.objectIndex != currentObjectIndex) {
currentObjectIndex = alias.objectIndex;
effectiveAliasIndex = 0;
propertyCache = qmcTypeUnit->propertyCaches.at(alias.objectIndex);
effectivePropertyIndex = propertyCache->propertyIndexCacheStart + propertyCache->propertyIndexCache.count();
effectiveSignalIndex = propertyCache->signalHandlerIndexCacheStart + propertyCache->propertyIndexCache.count();
}
Q_ASSERT(propertyCache);
QQmlVMEMetaData::AliasData aliasData;
aliasData.contextIdx = alias.contextIndex;
aliasData.propertyIdx = alias.targetPropertyIndex;
aliasData.propType = alias.propertyType;
aliasData.flags = alias.flags;
aliasData.notifySignal = alias.notifySignal;
typedef QQmlVMEMetaData VMD;
QByteArray &dynamicData = qmcTypeUnit->vmeMetaObjects[alias.objectIndex];
Q_ASSERT(!dynamicData.isEmpty());
VMD *vmd = (QQmlVMEMetaData *)dynamicData.data();
*(vmd->aliasData() + effectiveAliasIndex++) = aliasData;
Q_ASSERT(dynamicData.isDetached());
// TBD: propertyCache
const QV4::CompiledData::Object *obj = qmcTypeUnit->compiledData->qmlUnit->objectAt(alias.objectIndex);
Q_ASSERT(obj);
Q_ASSERT(alias.propertyIndex < obj->nProperties);
const QV4::CompiledData::Property *p = &obj->propertyTable()[alias.propertyIndex];
Q_ASSERT(p);
QString propertyName = qmcTypeUnit->stringAt(p->nameIndex);
const QString aliasPropertyValue = qmcTypeUnit->stringAt(p->aliasPropertyValueIndex);
//const int idIndex = p->aliasIdValueIndex;
const int targetObjectIndex = alias.targetObjectIndex;
#if 0
const int idIndex = p->aliasIdValueIndex;
const int targetObjectIndex = _idToObjectIndex.value(idIndex, -1);
if (targetObjectIndex == -1) {
recordError(p->aliasLocation, tr("Invalid alias reference. Unable to find id \"%1\"").arg(stringAt(idIndex)));
return false;
}
#endif
QStringRef property;
QStringRef subProperty;
const int propertySeparator = aliasPropertyValue.indexOf(QLatin1Char('.'));
if (propertySeparator != -1) {
property = aliasPropertyValue.leftRef(propertySeparator);
subProperty = aliasPropertyValue.midRef(propertySeparator + 1);
} else
property = QStringRef(&aliasPropertyValue, 0, aliasPropertyValue.length());
quint32 propertyFlags = QQmlPropertyData::IsAlias;
int type = 0;
bool writable = false;
bool resettable = false;
if (property.isEmpty()) {
const QV4::CompiledData::Object *targetObject = qmcTypeUnit->compiledData->qmlUnit->objectAt(targetObjectIndex);
QQmlCompiledData::TypeReference *typeRef = qmcTypeUnit->compiledData->resolvedTypes.value(targetObject->inheritedTypeNameIndex);
Q_ASSERT(typeRef);
if (typeRef->type)
type = typeRef->type->typeId();
else
type = typeRef->component->metaTypeId;
//flags |= QML_ALIAS_FLAG_PTR;
propertyFlags |= QQmlPropertyData::IsQObjectDerived;
} else {
QQmlPropertyCache *targetCache = qmcTypeUnit->propertyCaches.at(targetObjectIndex);
Q_ASSERT(targetCache);
QmlIR::PropertyResolver resolver(targetCache);
QQmlPropertyData *targetProperty = resolver.property(property.toString());
if (!targetProperty || targetProperty->coreIndex > 0x0000FFFF) {
return false;
}
//propIdx = targetProperty->coreIndex;
type = targetProperty->propType;
writable = targetProperty->isWritable();
resettable = targetProperty->isResettable();
//notifySignal = targetProperty->notifyIndex;
if (!subProperty.isEmpty()) {
QQmlValueType *valueType = QQmlValueTypeFactory::valueType(type);
if (!valueType) {
return false;
}
//propType = type;
int valueTypeIndex =
valueType->metaObject()->indexOfProperty(subProperty.toString().toUtf8().constData());
if (valueTypeIndex == -1) {
return false;
}
Q_ASSERT(valueTypeIndex <= 0x0000FFFF);
//propIdx |= (valueTypeIndex << 16);
if (valueType->metaObject()->property(valueTypeIndex).isEnumType())
type = QVariant::Int;
else
type = valueType->metaObject()->property(valueTypeIndex).userType();
} else {
if (targetProperty->isEnum()) {
type = QVariant::Int;
} else {
// Copy type flags
propertyFlags |= targetProperty->getFlags() & QQmlPropertyData::PropTypeFlagMask;
if (targetProperty->isVarProperty())
propertyFlags |= QQmlPropertyData::IsQVariant;
#if 0
if (targetProperty->isQObject())
flags |= QML_ALIAS_FLAG_PTR;
#endif
}
}
}
if (!(p->flags & QV4::CompiledData::Property::IsReadOnly) && writable)
propertyFlags |= QQmlPropertyData::IsWritable;
else
propertyFlags &= ~QQmlPropertyData::IsWritable;
if (resettable)
propertyFlags |= QQmlPropertyData::IsResettable;
else
propertyFlags &= ~QQmlPropertyData::IsResettable;
if ((int)alias.propertyIndex == obj->indexOfDefaultProperty) propertyCache->_defaultPropertyName = propertyName;
propertyCache->appendProperty(propertyName, propertyFlags, effectivePropertyIndex++,
type, effectiveSignalIndex++);
}
return true;
}
bool Compiler::addImport(const QV4::CompiledData::Import *import, QList<QQmlError> *errors)
{
Q_D(Compiler);
const QString &importUri = stringAt(import->uriIndex);
const QString &importQualifier = stringAt(import->qualifierIndex);
if (import->type == QV4::CompiledData::Import::ImportScript) {
// TBD: qqmltypeloader.cpp:1320
QmlCompilation::ScriptReference scriptRef;
scriptRef.location = import->location;
scriptRef.qualifier = importQualifier;
scriptRef.compilation = NULL;
d->compilation->scripts.append(scriptRef);
} else if (import->type == QV4::CompiledData::Import::ImportLibrary) {
QString qmldirFilePath;
QString qmldirUrl;
if (QQmlMetaType::isLockedModule(importUri, import->majorVersion)) {
//Locked modules are checked first, to save on filesystem checks
if (!d->compilation->importCache->addLibraryImport(d->compilation->importDatabase, importUri, importQualifier, import->majorVersion,
import->minorVersion, QString(), QString(), false, errors))
return false;
} else if (d->compilation->importCache->locateQmldir(d->compilation->importDatabase, importUri, import->majorVersion, import->minorVersion,
&qmldirFilePath, &qmldirUrl)) {
// This is a local library import
if (!d->compilation->importCache->addLibraryImport(d->compilation->importDatabase, importUri, importQualifier, import->majorVersion,
import->minorVersion, qmldirFilePath, qmldirUrl, false, errors))
return false;
if (!importQualifier.isEmpty()) {
// Does this library contain any qualified scripts?
QUrl libraryUrl(qmldirUrl);
QQmlTypeLoader* typeLoader = &QQmlEnginePrivate::get(d->compilation->engine)->typeLoader;
const QQmlTypeLoader::QmldirContent *qmldir = typeLoader->qmldirContent(qmldirFilePath, qmldirUrl);
// File loading will import the dependency and takes care of
// everything there. Adding a script reference here just seems
// to add an unnecessary reference that might actually be a bug.
// In case something is needed, see: qqmltypeloader.cpp:1343
}
} else {
// Is this a module?
qDebug() << "Importing local module" << importUri;
if (QQmlMetaType::isAnyModule(importUri)) {
if (!d->compilation->importCache->addLibraryImport(d->compilation->importDatabase, importUri, importQualifier, import->majorVersion,
import->minorVersion, QString(), QString(), false, errors))
return false;
} else {
QQmlError error;
error.setDescription("Unresolved import " + importUri);
error.setLine(import->location.line);
error.setColumn(import->location.column);
error.setUrl(d->compilation->url);
appendError(error);
return false;
// TBD: else add to unresolved imports qqmltypeloader.cpp:1356
}
}
} else {
// qqmltypeloader.cpp:1383
Q_ASSERT(import->type == QV4::CompiledData::Import::ImportFile);
QUrl qmldirUrl;
if (importQualifier.isEmpty()) {
qmldirUrl = compilation()->loadUrl.resolved(QUrl(importUri + QLatin1String("/qmldir")));
if (!QQmlImports::isLocal(qmldirUrl)) {
qDebug() << "File import from network not supported";
QQmlError error;
error.setDescription("File import from network not supported");
errors->append(error);
return false;
}
}
if (!compilation()->importCache->addFileImport(compilation()->importDatabase, importUri, importQualifier, import->majorVersion,
import->minorVersion, /*incomplete*/ false, errors))
return false;
}
return true;
}
