C++ QDeclarativeError::description方法代码示例

void tst_qdeclarativeerror::copy()
{
    QDeclarativeError error;
    error.setUrl(QUrl("http://www.qt-project.org/main.qml"));
    error.setDescription("An Error");
    error.setLine(92);
    error.setColumn(13);

    QDeclarativeError error2(error);
    QDeclarativeError error3;
    error3 = error;

    error.setUrl(QUrl("http://www.qt-project.org/main.qml"));
    error.setDescription("Another Error");
    error.setLine(2);
    error.setColumn(33);

    QCOMPARE(error.url(), QUrl("http://www.qt-project.org/main.qml"));
    QCOMPARE(error.description(), QString("Another Error"));
    QCOMPARE(error.line(), 2);
    QCOMPARE(error.column(), 33);

    QCOMPARE(error2.url(), QUrl("http://www.qt-project.org/main.qml"));
    QCOMPARE(error2.description(), QString("An Error"));
    QCOMPARE(error2.line(), 92);
    QCOMPARE(error2.column(), 13);

    QCOMPARE(error3.url(), QUrl("http://www.qt-project.org/main.qml"));
    QCOMPARE(error3.description(), QString("An Error"));
    QCOMPARE(error3.line(), 92);
    QCOMPARE(error3.column(), 13);

}

void tst_qdeclarativeerror::description()
{
    QDeclarativeError error;

    QCOMPARE(error.description(), QString());

    error.setDescription("An Error");

    QCOMPARE(error.description(), QString("An Error"));

    QDeclarativeError error2 = error;

    QCOMPARE(error2.description(), QString("An Error"));

    error.setDescription("Another Error");

    QCOMPARE(error.description(), QString("Another Error"));
    QCOMPARE(error2.description(), QString("An Error"));
}

bool QDeclarativeImportsPrivate::importExtension(const QString &absoluteFilePath, const QString &uri, 
                                                 QDeclarativeImportDatabase *database, 
                                                 QDeclarativeDirComponents* components, QList<QDeclarativeError> *errors)
{
    QFile file(absoluteFilePath);
    QString filecontent;
    if (!QDeclarative_isFileCaseCorrect(absoluteFilePath)) {
        if (errors) {
            QDeclarativeError error;
            error.setDescription(QDeclarativeImportDatabase::tr("cannot load module \"%1\": File name case mismatch for \"%2\"").arg(uri).arg(absoluteFilePath));
            errors->prepend(error);
        }
        return false;
    } else if (file.open(QFile::ReadOnly)) {
        filecontent = QString::fromUtf8(file.readAll());
        if (qmlImportTrace())
            qDebug().nospace() << "QDeclarativeImports(" << qPrintable(base.toString()) << "::importExtension: "
                               << "loaded " << absoluteFilePath;
    } else {
        if (errors) {
            QDeclarativeError error;
            error.setDescription(QDeclarativeImportDatabase::tr("module \"%1\" definition \"%2\" not readable").arg(uri).arg(absoluteFilePath));
            errors->prepend(error);
        }
        return false;
    }
    QDir dir = QFileInfo(file).dir();
    QUrl url = QUrl::fromLocalFile(absoluteFilePath);

    QDeclarativeDirParser qmldirParser;
    qmldirParser.setSource(filecontent);
    qmldirParser.setUrl(url);

    // propagate any errors reported by the parser back up to the typeloader.
    if (qmldirParser.parse()) {
        if (errors) {
            for (int i = 0; i < qmldirParser.errors().size(); ++i) {
                errors->prepend(qmldirParser.errors().at(i));
            }
        }
        return false;
    }

    if (! qmlDirFilesForWhichPluginsHaveBeenLoaded.contains(absoluteFilePath)) {
        qmlDirFilesForWhichPluginsHaveBeenLoaded.insert(absoluteFilePath);


        foreach (const QDeclarativeDirParser::Plugin &plugin, qmldirParser.plugins()) {

            QString resolvedFilePath = database->resolvePlugin(dir, plugin.path, plugin.name);
#if defined(QT_LIBINFIX) && defined(Q_OS_SYMBIAN)
            if (resolvedFilePath.isEmpty()) {
                // In case of libinfixed build, attempt to load libinfixed version, too.
                QString infixedPluginName = plugin.name + QLatin1String(QT_LIBINFIX);
                resolvedFilePath = database->resolvePlugin(dir, plugin.path, infixedPluginName);
            }
#endif
            if (!resolvedFilePath.isEmpty()) {
                if (!database->importPlugin(resolvedFilePath, uri, errors)) {
                    if (errors) {
                        // XXX TODO: should we leave the import plugin error alone?
                        // Here, we pop it off the top and coalesce it into this error's message.
                        // The reason is that the lower level may add url and line/column numbering information.
                        QDeclarativeError poppedError = errors->takeFirst();
                        QDeclarativeError error;
                        error.setDescription(QDeclarativeImportDatabase::tr("plugin cannot be loaded for module \"%1\": %2").arg(uri).arg(poppedError.description()));
                        error.setUrl(url);
                        errors->prepend(error);
                    }
                    return false;
                }
            } else {
                if (errors) {
                    QDeclarativeError error;
                    error.setDescription(QDeclarativeImportDatabase::tr("module \"%1\" plugin \"%2\" not found").arg(uri).arg(plugin.name));
                    error.setUrl(url);
                    errors->prepend(error);
                }
                return false;
            }
        }
    }