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C++ XPCWrappedNative::GetSameCompartmentSecurityWrapper方法代码示例

本文整理汇总了C++中XPCWrappedNative::GetSameCompartmentSecurityWrapper方法的典型用法代码示例。如果您正苦于以下问题:C++ XPCWrappedNative::GetSameCompartmentSecurityWrapper方法的具体用法?C++ XPCWrappedNative::GetSameCompartmentSecurityWrapper怎么用?C++ XPCWrappedNative::GetSameCompartmentSecurityWrapper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XPCWrappedNative的用法示例。


在下文中一共展示了XPCWrappedNative::GetSameCompartmentSecurityWrapper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: obj

JSObject *
WrapperFactory::WrapForSameCompartment(JSContext *cx, HandleObject objArg)
{
    RootedObject obj(cx, objArg);
    MOZ_ASSERT(js::IsObjectInContextCompartment(obj, cx));

    // NB: The contract of WrapForSameCompartment says that |obj| may or may not
    // be a security wrapper. These checks implicitly handle the security
    // wrapper case.

    // Outerize if necessary. This, in combination with the check in
    // PrepareForUnwrapping, means that calling JS_Wrap* always outerizes.
    obj = JS_ObjectToOuterObject(cx, obj);
    NS_ENSURE_TRUE(obj, nullptr);

    if (dom::GetSameCompartmentWrapperForDOMBinding(*obj.address())) {
        return obj;
    }

    MOZ_ASSERT(!dom::IsDOMObject(obj));

    if (!IS_WN_WRAPPER(obj))
        return obj;

    // Extract the WN. It should exist.
    XPCWrappedNative *wn = static_cast<XPCWrappedNative *>(xpc_GetJSPrivate(obj));
    MOZ_ASSERT(wn, "Trying to wrap a dead WN!");

    // The WN knows what to do.
    RootedObject wrapper(cx, wn->GetSameCompartmentSecurityWrapper(cx));
    MOZ_ASSERT_IF(wrapper != obj && IsComponentsObject(js::UncheckedUnwrap(obj)),
                  !Wrapper::wrapperHandler(wrapper)->isSafeToUnwrap());
    return wrapper;
}
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