void UsesCollector::startCollecting() {
DUChainReadLocker lock(DUChain::lock());
if(Declaration* decl = m_declaration.data()) {
if(m_collectDefinitions) {
if(FunctionDefinition* def = dynamic_cast<FunctionDefinition*>(decl)) {
//Jump from definition to declaration
Declaration* declaration = def->declaration();
if(declaration)
decl = declaration;
}
}
///Collect all overloads into "decls"
QList<Declaration*> decls;
if(m_collectOverloads && decl->context()->owner() && decl->context()->type() == DUContext::Class) {
//First find the overridden base, and then all overriders of that base.
while(Declaration* overridden = DUChainUtils::getOverridden(decl))
decl = overridden;
uint maxAllowedSteps = 10000;
decls += DUChainUtils::getOverriders( decl->context()->owner(), decl, maxAllowedSteps );
if(maxAllowedSteps == 10000) {
///@todo Fail!
}
}
decls << decl;
///Collect all "parsed versions" or forward-declarations etc. here, into allDeclarations
QSet<IndexedDeclaration> allDeclarations;
foreach(Declaration* overload, decls) {
m_declarations = DUChainUtils::collectAllVersions(overload);
foreach(const IndexedDeclaration &d, m_declarations) {
if(!d.data() || d.data()->id() != overload->id())
continue;
allDeclarations.insert(d);
if(m_collectConstructors && d.data() && d.data()->internalContext() && d.data()->internalContext()->type() == DUContext::Class) {
QList<Declaration*> constructors = d.data()->internalContext()->findLocalDeclarations(d.data()->identifier(), CursorInRevision::invalid(), nullptr, AbstractType::Ptr(), DUContext::OnlyFunctions);
foreach(Declaration* constructor, constructors) {
ClassFunctionDeclaration* classFun = dynamic_cast<ClassFunctionDeclaration*>(constructor);
if(classFun && classFun->isConstructor())
allDeclarations.insert(IndexedDeclaration(constructor));
}
Identifier destructorId = destructorForName(d.data()->identifier());
QList<Declaration*> destructors = d.data()->internalContext()->findLocalDeclarations(destructorId, CursorInRevision::invalid(), nullptr, AbstractType::Ptr(), DUContext::OnlyFunctions);
foreach(Declaration* destructor, destructors) {
ClassFunctionDeclaration* classFun = dynamic_cast<ClassFunctionDeclaration*>(destructor);
if(classFun && classFun->isDestructor())
allDeclarations.insert(IndexedDeclaration(destructor));
}
}
QVariant NormalDeclarationCompletionItem::data(const QModelIndex& index, int role, const KDevelop::CodeCompletionModel* model) const
{
DUChainReadLocker lock(DUChain::lock(), 500);
if(!lock.locked()) {
kDebug(9007) << "Failed to lock the du-chain in time";
return QVariant();
}
switch (role) {
case Qt::DisplayRole:
if (index.column() == CodeCompletionModel::Name) {
return declarationName();
} else if(index.column() == CodeCompletionModel::Postfix) {
if (FunctionType::Ptr functionType = m_declaration->type<FunctionType>()) {
// Retrieve const/volatile string
return functionType->AbstractType::toString();
}
} else if(index.column() == CodeCompletionModel::Prefix) {
if (m_declaration->abstractType()) {
if(EnumeratorType::Ptr enumerator = m_declaration->type<EnumeratorType>()) {
if(m_declaration->context()->owner() && m_declaration->context()->owner()->abstractType()) {
if(!m_declaration->context()->owner()->identifier().isEmpty())
return shortenedTypeString(DeclarationPointer(m_declaration->context()->owner()), desiredTypeLength);
else
return "enum";
}
}
if (FunctionType::Ptr functionType = m_declaration->type<FunctionType>()) {
ClassFunctionDeclaration* funDecl = dynamic_cast<ClassFunctionDeclaration*>(m_declaration.data());
if (functionType->returnType()) {
QString ret = shortenedTypeString(m_declaration, desiredTypeLength);
if(shortenArgumentHintReturnValues && argumentHintDepth() && ret.length() > maximumArgumentHintReturnValueLength)
return QString("...");
else
return ret;
}else if(argumentHintDepth()) {
return QString();//Don't show useless prefixes in the argument-hints
}else if(funDecl && funDecl->isConstructor() )
return "<constructor>";
else if(funDecl && funDecl->isDestructor() )
return "<destructor>";
else
return "<incomplete type>";
} else {
return shortenedTypeString(m_declaration, desiredTypeLength);
}
} else {
return "<incomplete type>";
}
}
break;
case CodeCompletionModel::BestMatchesCount:
return QVariant(normalBestMatchesCount);
break;
case CodeCompletionModel::IsExpandable:
return QVariant(createsExpandingWidget());
case CodeCompletionModel::ExpandingWidget: {
QWidget* nav = createExpandingWidget(model);
Q_ASSERT(nav);
model->addNavigationWidget(this, nav);
QVariant v;
v.setValue<QWidget*>(nav);
return v;
}
case CodeCompletionModel::ScopeIndex:
return static_cast<int>(reinterpret_cast<long>(m_declaration->context()));
case CodeCompletionModel::CompletionRole:
return (int)completionProperties();
case Qt::DecorationRole:
{
if( index.column() == CodeCompletionModel::Icon ) {
CodeCompletionModel::CompletionProperties p = completionProperties();
lock.unlock();
return DUChainUtils::iconForProperties(p);
}
break;
}
}
return QVariant();
}