当前位置: 首页>>代码示例>>C++>>正文

C++ QScriptValueList::at方法代码示例

本文整理汇总了C++中QScriptValueList::at方法的典型用法代码示例。如果您正苦于以下问题：C++ QScriptValueList::at方法的具体用法？C++ QScriptValueList::at怎么用？C++ QScriptValueList::at使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QScriptValueList的用法示例。


在下文中一共展示了QScriptValueList::at方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: extension

QVariant TestClass::extension(Extension extension,
                              const QVariant &argument)
{
    if (extension == Callable) {
        Q_ASSERT(m_callableMode != NotCallable);
        QScriptContext *ctx = qvariant_cast<QScriptContext*>(argument);
        if (m_callableMode == CallableReturnsSum) {
            qsreal sum = 0;
            for (int i = 0; i < ctx->argumentCount(); ++i)
                sum += ctx->argument(i).toNumber();
            QScriptValueIterator it(ctx->thisObject());
            while (it.hasNext()) {
                it.next();
                sum += it.value().toNumber();
            }
            return sum;
        } else if (m_callableMode == CallableReturnsArgument) {
            return qVariantFromValue(ctx->argument(0));
        } else if (m_callableMode == CallableReturnsInvalidVariant) {
            return QVariant();
        }
    } else if (extension == HasInstance) {
        Q_ASSERT(m_hasInstance);
        QScriptValueList args = qvariant_cast<QScriptValueList>(argument);
        Q_ASSERT(args.size() == 2);
        QScriptValue obj = args.at(0);
        QScriptValue value = args.at(1);
        return value.property("foo").equals(obj.property("foo"));
    }
    return QVariant();
}
开发者ID:，项目名称:，代码行数:31，代码来源:

示例2: execute

/*!
  Applies the given \a command to the given \a backend.
*/
QScriptDebuggerResponse QScriptDebuggerCommandExecutor::execute(
    QScriptDebuggerBackend *backend,
    const QScriptDebuggerCommand &command)
{
    QScriptDebuggerResponse response;
    switch (command.type()) {
    case QScriptDebuggerCommand::None:
        break;

    case QScriptDebuggerCommand::Interrupt:
        backend->interruptEvaluation();
        break;

    case QScriptDebuggerCommand::Continue:
        if (backend->engine()->isEvaluating()) {
            backend->continueEvalution();
            response.setAsync(true);
        }
        break;

    case QScriptDebuggerCommand::StepInto: {
        QVariant attr = command.attribute(QScriptDebuggerCommand::StepCount);
        int count = attr.isValid() ? attr.toInt() : 1;
        backend->stepInto(count);
        response.setAsync(true);
    }   break;

    case QScriptDebuggerCommand::StepOver: {
        QVariant attr = command.attribute(QScriptDebuggerCommand::StepCount);
        int count = attr.isValid() ? attr.toInt() : 1;
        backend->stepOver(count);
        response.setAsync(true);
    }   break;

    case QScriptDebuggerCommand::StepOut:
        backend->stepOut();
        response.setAsync(true);
        break;

    case QScriptDebuggerCommand::RunToLocation:
        backend->runToLocation(command.fileName(), command.lineNumber());
        response.setAsync(true);
        break;

    case QScriptDebuggerCommand::RunToLocationByID:
        backend->runToLocation(command.scriptId(), command.lineNumber());
        response.setAsync(true);
        break;

    case QScriptDebuggerCommand::ForceReturn: {
        int contextIndex = command.contextIndex();
        QScriptDebuggerValue value = command.scriptValue();
        QScriptEngine *engine = backend->engine();
        QScriptValue realValue = value.toScriptValue(engine);
        backend->returnToCaller(contextIndex, realValue);
        response.setAsync(true);
    }   break;

    case QScriptDebuggerCommand::Resume:
        backend->resume();
        response.setAsync(true);
        break;

    case QScriptDebuggerCommand::SetBreakpoint: {
        QScriptBreakpointData data = command.breakpointData();
        if (!data.isValid())
            data = QScriptBreakpointData(command.fileName(), command.lineNumber());
        int id = backend->setBreakpoint(data);
        response.setResult(id);
    }   break;

    case QScriptDebuggerCommand::DeleteBreakpoint: {
        int id = command.breakpointId();
        if (!backend->deleteBreakpoint(id))
            response.setError(QScriptDebuggerResponse::InvalidBreakpointID);
    }   break;

    case QScriptDebuggerCommand::DeleteAllBreakpoints:
        backend->deleteAllBreakpoints();
        break;

    case QScriptDebuggerCommand::GetBreakpoints: {
        QScriptBreakpointMap bps = backend->breakpoints();
        if (!bps.isEmpty())
            response.setResult(bps);
    }   break;

    case QScriptDebuggerCommand::GetBreakpointData: {
        int id = command.breakpointId();
        QScriptBreakpointData data = backend->breakpointData(id);
        if (data.isValid())
            response.setResult(data);
        else
            response.setError(QScriptDebuggerResponse::InvalidBreakpointID);
    }   break;

    case QScriptDebuggerCommand::SetBreakpointData: {
//.........这里部分代码省略.........
开发者ID:Blizzard，项目名称:qt4，代码行数:101，代码来源:qscriptdebuggercommandexecutor.cpp

示例3: scopeChain

void tst_QScriptContext::scopeChain()
{
    QScriptEngine eng;
    {
        QScriptValueList ret = eng.currentContext()->scopeChain();
        QCOMPARE(ret.size(), 1);
        QVERIFY(ret.at(0).strictlyEquals(eng.globalObject()));
    }
    {
        eng.globalObject().setProperty("getScopeChain", eng.newFunction(getScopeChain));
        QScriptValueList ret = qscriptvalue_cast<QScriptValueList>(eng.evaluate("getScopeChain()"));
        QCOMPARE(ret.size(), 1);
        QVERIFY(ret.at(0).strictlyEquals(eng.globalObject()));
    }
    {
        eng.evaluate("function foo() { function bar() { return getScopeChain(); } return bar() }");
        QScriptValueList ret = qscriptvalue_cast<QScriptValueList>(eng.evaluate("foo()"));
        QEXPECT_FAIL("", "Number of items in returned scope chain is incorrect", Abort);
        QCOMPARE(ret.size(), 3);
        QVERIFY(ret.at(2).strictlyEquals(eng.globalObject()));
        QCOMPARE(ret.at(1).toString(), QString::fromLatin1("activation"));
        QVERIFY(ret.at(1).property("arguments").isObject());
        QCOMPARE(ret.at(0).toString(), QString::fromLatin1("activation"));
        QVERIFY(ret.at(0).property("arguments").isObject());
    }
    {
        QScriptValueList ret = qscriptvalue_cast<QScriptValueList>(eng.evaluate("o = { x: 123 }; with(o) getScopeChain();"));
        QCOMPARE(ret.size(), 2);
        QVERIFY(ret.at(1).strictlyEquals(eng.globalObject()));
        QVERIFY(ret.at(0).isObject());
        QCOMPARE(ret.at(0).property("x").toInt32(), 123);
    }
    {
        QScriptValueList ret = qscriptvalue_cast<QScriptValueList>(
            eng.evaluate("o1 = { x: 123}; o2 = { y: 456 }; with(o1) { with(o2) { getScopeChain(); } }"));
        QCOMPARE(ret.size(), 3);
        QVERIFY(ret.at(2).strictlyEquals(eng.globalObject()));
        QVERIFY(ret.at(1).isObject());
        QCOMPARE(ret.at(1).property("x").toInt32(), 123);
        QVERIFY(ret.at(0).isObject());
        QCOMPARE(ret.at(0).property("y").toInt32(), 456);
    }
}
开发者ID:kuailexs，项目名称:symbiandump-mw3，代码行数:43，代码来源:tst_qscriptcontext.cpp

示例4: extension

void tst_QScriptClass::extension()
{
    QScriptEngine eng;
    {
        TestClass cls(&eng);
        cls.setCallableMode(TestClass::NotCallable);
        QVERIFY(!cls.supportsExtension(QScriptClass::Callable));
        QVERIFY(!cls.supportsExtension(QScriptClass::HasInstance));
        QScriptValue obj = eng.newObject(&cls);
        QVERIFY(!obj.call().isValid());
        QCOMPARE((int)cls.lastExtensionType(), -1);
        QVERIFY(!obj.instanceOf(obj));
        QCOMPARE((int)cls.lastExtensionType(), -1);
    }
    // Callable
    {
        TestClass cls(&eng);
        cls.setCallableMode(TestClass::CallableReturnsSum);
        QVERIFY(cls.supportsExtension(QScriptClass::Callable));

        QScriptValue obj = eng.newObject(&cls);
        eng.globalObject().setProperty("obj", obj);
        obj.setProperty("one", QScriptValue(&eng, 1));
        obj.setProperty("two", QScriptValue(&eng, 2));
        obj.setProperty("three", QScriptValue(&eng, 3));
        // From C++
        cls.clearReceivedArgs();
        {
            QScriptValueList args;
            args << QScriptValue(&eng, 4) << QScriptValue(&eng, 5);
            QScriptValue ret = obj.call(obj, args);
            QCOMPARE(cls.lastExtensionType(), QScriptClass::Callable);
            QCOMPARE(cls.lastExtensionArgument().userType(), qMetaTypeId<QScriptContext*>());
            QVERIFY(ret.isNumber());
            QCOMPARE(ret.toNumber(), qsreal(15));
        }
        // From JS
        cls.clearReceivedArgs();
        {
            QScriptValue ret = eng.evaluate("obj(4, 5)");
            QCOMPARE(cls.lastExtensionType(), QScriptClass::Callable);
            QCOMPARE(cls.lastExtensionArgument().userType(), qMetaTypeId<QScriptContext*>());
            QVERIFY(ret.isNumber());
            QCOMPARE(ret.toNumber(), qsreal(15));
        }

        cls.setCallableMode(TestClass::CallableReturnsArgument);
        // From C++
        cls.clearReceivedArgs();
        {
            QScriptValue ret = obj.call(obj, QScriptValueList() << 123);
            QCOMPARE(cls.lastExtensionType(), QScriptClass::Callable);
            QCOMPARE(cls.lastExtensionArgument().userType(), qMetaTypeId<QScriptContext*>());
            QVERIFY(ret.isNumber());
            QCOMPARE(ret.toInt32(), 123);
        }
        cls.clearReceivedArgs();
        {
            QScriptValue ret = obj.call(obj, QScriptValueList() << true);
            QCOMPARE(cls.lastExtensionType(), QScriptClass::Callable);
            QCOMPARE(cls.lastExtensionArgument().userType(), qMetaTypeId<QScriptContext*>());
            QVERIFY(ret.isBoolean());
            QCOMPARE(ret.toBoolean(), true);
        }
        {
            QScriptValue ret = obj.call(obj, QScriptValueList() << QString::fromLatin1("ciao"));
            QVERIFY(ret.isString());
            QCOMPARE(ret.toString(), QString::fromLatin1("ciao"));
        }
        {
            QScriptValue objobj = eng.newObject();
            QScriptValue ret = obj.call(obj, QScriptValueList() << objobj);
            QVERIFY(ret.isObject());
            QVERIFY(ret.strictlyEquals(objobj));
        }
        {
            QScriptValue ret = obj.call(obj, QScriptValueList() << QScriptValue());
            QVERIFY(ret.isUndefined());
        }
        // From JS
        cls.clearReceivedArgs();
        {
            QScriptValue ret = eng.evaluate("obj(123)");
            QVERIFY(ret.isNumber());
            QCOMPARE(ret.toInt32(), 123);
        }

        cls.setCallableMode(TestClass::CallableReturnsInvalidVariant);
        {
            QScriptValue ret = obj.call(obj);
            QVERIFY(ret.isUndefined());
        }

        cls.setCallableMode(TestClass::CallableReturnsThisObject);
        // From C++
        {
            QScriptValue ret = obj.call(obj);
            QVERIFY(ret.isObject());
            QVERIFY(ret.strictlyEquals(obj));
        }
//.........这里部分代码省略.........
开发者ID:husninazer，项目名称:qt，代码行数:101，代码来源:tst_qscriptclass.cpp


注：本文中的QScriptValueList::at方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。