当前位置: 首页>>代码示例>>C++>>正文


C++ XPCPerThreadData::SetException方法代码示例

本文整理汇总了C++中XPCPerThreadData::SetException方法的典型用法代码示例。如果您正苦于以下问题:C++ XPCPerThreadData::SetException方法的具体用法?C++ XPCPerThreadData::SetException怎么用?C++ XPCPerThreadData::SetException使用的例子?那么恭喜您, 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XPCPerThreadData的用法示例。


在下文中一共展示了XPCPerThreadData::SetException方法的1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: Invoke

JSBool XPCDispObject::Invoke(XPCCallContext & ccx, CallMode mode)
{
    nsresult rv = ccx.CanCallNow();
    if(NS_FAILED(rv))
    {
        // If the security manager is complaining then this is not really an
        // internal error in xpconnect. So, no reason to botch the assertion.
        NS_ASSERTION(rv == NS_ERROR_XPC_SECURITY_MANAGER_VETO, 
                     "hmm? CanCallNow failed in XPCDispObject::Invoke. "
                     "We are finding out about this late!");
        XPCThrower::Throw(rv, ccx);
        return JS_FALSE;
    }

    // TODO: Remove type cast and change GetIDispatchMember to use the correct type
    XPCDispInterface::Member* member = reinterpret_cast<XPCDispInterface::Member*>(ccx.GetIDispatchMember());
    XPCJSRuntime* rt = ccx.GetRuntime();
    XPCContext* xpcc = ccx.GetXPCContext();
    XPCPerThreadData* tls = ccx.GetThreadData();
    
    jsval* argv = ccx.GetArgv();
    uintN argc = ccx.GetArgc();

    tls->SetException(nsnull);
    xpcc->SetLastResult(NS_ERROR_UNEXPECTED);

    // set up the method index and do the security check if needed

    PRUint32 secFlag;
    PRUint32 secAction;

    switch(mode)
    {
        case CALL_METHOD:
            secFlag   = nsIXPCSecurityManager::HOOK_CALL_METHOD;
            secAction = nsIXPCSecurityManager::ACCESS_CALL_METHOD;
            break;
        case CALL_GETTER:
            secFlag   = nsIXPCSecurityManager::HOOK_GET_PROPERTY;
            secAction = nsIXPCSecurityManager::ACCESS_GET_PROPERTY;
            break;
        case CALL_SETTER:
            secFlag   = nsIXPCSecurityManager::HOOK_SET_PROPERTY;
            secAction = nsIXPCSecurityManager::ACCESS_SET_PROPERTY;
            break;
        default:
            NS_ASSERTION(0,"bad value");
            return JS_FALSE;
    }
    jsval name = member->GetName();

    nsIXPCSecurityManager* sm = xpcc->GetAppropriateSecurityManager(secFlag);
    XPCWrappedNative* wrapper = ccx.GetWrapper();
    if(sm && NS_FAILED(sm->CanAccess(secAction, &ccx, ccx,
                                     ccx.GetFlattenedJSObject(),
                                     wrapper->GetIdentityObject(),
                                     wrapper->GetClassInfo(), name,
                                     wrapper->GetSecurityInfoAddr())))
    {
        // the security manager vetoed. It should have set an exception.
        return JS_FALSE;
    }

    IDispatch * pObj = reinterpret_cast<IDispatch*>
                                       (ccx.GetTearOff()->GetNative());
    PRUint32 args = member->GetParamCount();
    uintN err;
    // Make sure setter has one argument
    if(mode == CALL_SETTER)
        args = 1;
    // Allow for optional parameters. We'll let COM handle the error if there
    // are not enough parameters
    if(argc < args)
        args = argc;
    XPCDispParams * params = new XPCDispParams(args);
    jsval val;
    // If this is a setter, we just need to convert the first parameter
    if(mode == CALL_SETTER)
    {
        params->SetNamedPropID();
        if(!XPCDispConvert::JSToCOM(ccx, argv[0], params->GetParamRef(0), err))
        {
            delete params;
            return ThrowBadParam(err, 0, ccx);
        }
    }
    else if(mode != CALL_GETTER)    // This is a function
    {
        // Convert the arguments to the function
        for(PRUint32 index = 0; index < args; ++index)
        {
            const XPCDispInterface::Member::ParamInfo & paramInfo = member->GetParamInfo(index);
            if(paramInfo.IsIn())
            {
                val = argv[index];
                if(paramInfo.IsOut())
                {
                    if(JSVAL_IS_PRIMITIVE(val) ||
                        !OBJ_GET_PROPERTY(ccx, JSVAL_TO_OBJECT(val),
                                          rt->GetStringID(XPCJSRuntime::IDX_VALUE),
//.........这里部分代码省略.........
开发者ID:dimitrianoudi,项目名称:Jaxer,代码行数:101,代码来源:XPCDispObject.cpp


注:本文中的XPCPerThreadData::SetException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。