C++ Symbol::fileNameLength方法代码示例

QVariant OverviewModel::data(const QModelIndex &index, int role) const
{
    // account for no symbol item
    if (!index.parent().isValid() && index.row() == 0) {
        switch (role) {
        case Qt::DisplayRole:
            if (rowCount() > 1)
                return tr("<Select Symbol>");
            else
                return tr("<No Symbols>");
        default:
            return QVariant();
        } //switch
    }

    switch (role) {
    case Qt::DisplayRole: {
        Symbol *symbol = static_cast<Symbol *>(index.internalPointer());
        QString name = _overview.prettyName(symbol->name());
        if (name.isEmpty())
            name = QLatin1String("anonymous");
        if (! symbol->isScopedSymbol() || symbol->isFunction()) {
            QString type = _overview.prettyType(symbol->type());
            if (! type.isEmpty()) {
                if (! symbol->type()->isFunction())
                    name += QLatin1String(": ");
                name += type;
            }
        }
        return name;
    }

    case Qt::EditRole: {
        Symbol *symbol = static_cast<Symbol *>(index.internalPointer());
        QString name = _overview.prettyName(symbol->name());
        if (name.isEmpty())
            name = QLatin1String("anonymous");
        return name;
    }

    case Qt::DecorationRole: {
        Symbol *symbol = static_cast<Symbol *>(index.internalPointer());
        return _icons.iconForSymbol(symbol);
    } break;

    case FileNameRole: {
        Symbol *symbol = static_cast<Symbol *>(index.internalPointer());
        return QString::fromUtf8(symbol->fileName(), symbol->fileNameLength());
    }

    case LineNumberRole: {
        Symbol *symbol = static_cast<Symbol *>(index.internalPointer());
        return symbol->line();
    }

    default:
        return QVariant();
    } // switch
}

static QSharedPointer<FunctionDeclDefLink> findLinkHelper(QSharedPointer<FunctionDeclDefLink> link, CppTools::CppRefactoringChanges changes)
{
    QSharedPointer<FunctionDeclDefLink> noResult;
    const Snapshot &snapshot = changes.snapshot();

    // find the matching decl/def symbol
    Symbol *target = 0;
    CppTools::SymbolFinder finder;
    if (FunctionDefinitionAST *funcDef = link->sourceDeclaration->asFunctionDefinition()) {
        QList<Declaration *> nameMatch, argumentCountMatch, typeMatch;
        finder.findMatchingDeclaration(LookupContext(link->sourceDocument, snapshot),
                                       funcDef->symbol,
                                       &typeMatch, &argumentCountMatch, &nameMatch);
        if (!typeMatch.isEmpty())
            target = typeMatch.first();
    } else if (link->sourceDeclaration->asSimpleDeclaration()) {
        target = finder.findMatchingDefinition(link->sourceFunctionDeclarator->symbol, snapshot, true);
    }
    if (!target) {
        return noResult;
    }

    // parse the target file to get the linked decl/def
    const QString targetFileName = QString::fromUtf8(
                target->fileName(), target->fileNameLength());
    CppTools::CppRefactoringFileConstPtr targetFile = changes.fileNoEditor(targetFileName);
    if (!targetFile->isValid())
        return noResult;

    DeclarationAST *targetParent = 0;
    FunctionDeclaratorAST *targetFuncDecl = 0;
    DeclaratorAST *targetDeclarator = 0;
    if (!findDeclOrDef(targetFile->cppDocument(), target->line(), target->column(),
                       &targetParent, &targetDeclarator, &targetFuncDecl))
        return noResult;

    // the parens are necessary for finding good places for changes
    if (!targetFuncDecl->lparen_token || !targetFuncDecl->rparen_token)
        return noResult;
    QTC_ASSERT(targetFuncDecl->symbol, return noResult);
    // if the source and target argument counts differ, something is wrong
    QTC_ASSERT(targetFuncDecl->symbol->argumentCount() == link->sourceFunction->argumentCount(), return noResult);

    int targetStart, targetEnd;
    declDefLinkStartEnd(targetFile, targetParent, targetFuncDecl, &targetStart, &targetEnd);
    QString targetInitial = targetFile->textOf(
                targetFile->startOf(targetParent),
                targetEnd);

    targetFile->lineAndColumn(targetStart, &link->targetLine, &link->targetColumn);
    link->targetInitial = targetInitial;

    link->targetFile = targetFile;
    link->targetFunction = targetFuncDecl->symbol;
    link->targetFunctionDeclarator = targetFuncDecl;
    link->targetDeclaration = targetParent;

    return link;
}

void CppElementEvaluator::handleLookupItemMatch(const Snapshot &snapshot,
                                                const LookupItem &lookupItem,
                                                const LookupContext &context,
                                                const Scope *scope)
{
    Symbol *declaration = lookupItem.declaration();
    if (!declaration) {
        const QString &type = Overview().prettyType(lookupItem.type(), QString());
        //  special case for bug QTCREATORBUG-4780
        if (scope && scope->isFunction()
                && lookupItem.type().match(scope->asFunction()->returnType())) {
            return;
        }
        m_element = QSharedPointer<CppElement>(new Unknown(type));
    } else {
        const FullySpecifiedType &type = declaration->type();
        if (declaration->isNamespace()) {
            m_element = QSharedPointer<CppElement>(new CppNamespace(declaration));
        } else if (declaration->isClass()
                   || declaration->isForwardClassDeclaration()
                   || (declaration->isTemplate() && declaration->asTemplate()->declaration()
                       && (declaration->asTemplate()->declaration()->isClass()
                           || declaration->asTemplate()->declaration()->isForwardClassDeclaration()))) {
            LookupContext contextToUse = context;
            if (declaration->isForwardClassDeclaration())
                if (Symbol *classDeclaration =
                        m_symbolFinder.findMatchingClassDeclaration(declaration, snapshot)) {
                    declaration = classDeclaration;
                    const QString fileName = QString::fromUtf8(declaration->fileName(),
                                                               declaration->fileNameLength());
                    const Document::Ptr declarationDocument = snapshot.document(fileName);
                    if (declarationDocument != context.thisDocument())
                        contextToUse = LookupContext(declarationDocument, snapshot);
                }

            CppClass *cppClass = new CppClass(declaration);
            if (m_lookupBaseClasses)
                cppClass->lookupBases(declaration, contextToUse);
            if (m_lookupDerivedClasses)
                cppClass->lookupDerived(declaration, snapshot);
            m_element = QSharedPointer<CppElement>(cppClass);
        } else if (Enum *enumDecl = declaration->asEnum()) {
            m_element = QSharedPointer<CppElement>(new CppEnum(enumDecl));
        } else if (EnumeratorDeclaration *enumerator = dynamic_cast<EnumeratorDeclaration *>(declaration)) {
            m_element = QSharedPointer<CppElement>(new CppEnumerator(enumerator));
        } else if (declaration->isTypedef()) {
            m_element = QSharedPointer<CppElement>(new CppTypedef(declaration));
        } else if (declaration->isFunction()
                   || (type.isValid() && type->isFunctionType())
                   || declaration->isTemplate()) {
            m_element = QSharedPointer<CppElement>(new CppFunction(declaration));
        } else if (declaration->isDeclaration() && type.isValid()) {
            m_element = QSharedPointer<CppElement>(
                new CppVariable(declaration, context, lookupItem.scope()));
        } else {
            m_element = QSharedPointer<CppElement>(new CppDeclarableElement(declaration));
        }
    }
}

QVariant OverviewModel::data(const QModelIndex &index, int role) const
{
    // account for no symbol item
    if (!index.parent().isValid() && index.row() == 0) {
        switch (role) {
        case Qt::DisplayRole:
            if (rowCount() > 1)
                return tr("<Select Symbol>");
            else
                return tr("<No Symbols>");
        default:
            return QVariant();
        } //switch
    }

    switch (role) {
    case Qt::DisplayRole: {
        Symbol *symbol = static_cast<Symbol *>(index.internalPointer());
        QString name = _overview.prettyName(symbol->name());
        if (name.isEmpty())
            name = QLatin1String("anonymous");
        if (symbol->isObjCForwardClassDeclaration())
            name = QLatin1String("@class ") + name;
        if (symbol->isObjCForwardProtocolDeclaration() || symbol->isObjCProtocol())
            name = QLatin1String("@protocol ") + name;
        if (symbol->isObjCClass()) {
            ObjCClass *clazz = symbol->asObjCClass();
            if (clazz->isInterface())
                name = QLatin1String("@interface ") + name;
            else
                name = QLatin1String("@implementation ") + name;

            if (clazz->isCategory())
                name += QLatin1String(" (") + _overview.prettyName(clazz->categoryName()) + QLatin1Char(')');
        }
        if (symbol->isObjCPropertyDeclaration())
            name = QLatin1String("@property ") + name;
        if (Template *t = symbol->asTemplate())
            if (Symbol *templateDeclaration = t->declaration()) {
                QStringList parameters;
                for (unsigned i = 0; i < t->templateParameterCount(); ++i)
                    parameters.append(_overview.prettyName(t->templateParameterAt(i)->name()));
                name += QLatin1Char('<') + parameters.join(QLatin1String(", ")) + QLatin1Char('>');
                symbol = templateDeclaration;
            }
        if (symbol->isObjCMethod()) {
            ObjCMethod *method = symbol->asObjCMethod();
            if (method->isStatic())
                name = QLatin1Char('+') + name;
            else
                name = QLatin1Char('-') + name;
        } else if (! symbol->isScope() || symbol->isFunction()) {
            QString type = _overview.prettyType(symbol->type());
            if (Function *f = symbol->type()->asFunctionType()) {
                name += type;
                type = _overview.prettyType(f->returnType());
            }
            if (! type.isEmpty())
                name += QLatin1String(": ") + type;
        }
        return name;
    }

    case Qt::EditRole: {
        Symbol *symbol = static_cast<Symbol *>(index.internalPointer());
        QString name = _overview.prettyName(symbol->name());
        if (name.isEmpty())
            name = QLatin1String("anonymous");
        return name;
    }

    case Qt::DecorationRole: {
        Symbol *symbol = static_cast<Symbol *>(index.internalPointer());
        return _icons.iconForSymbol(symbol);
    } break;

    case FileNameRole: {
        Symbol *symbol = static_cast<Symbol *>(index.internalPointer());
        return QString::fromUtf8(symbol->fileName(), symbol->fileNameLength());
    }

    case LineNumberRole: {
        Symbol *symbol = static_cast<Symbol *>(index.internalPointer());
        return symbol->line();
    }

    default:
        return QVariant();
    } // switch
}