C++ (Cpp) XPCWrappedNative::GetObjectPrincipal示例

示例#1

文件： nsXPConnect.cpp 项目： cstipkovic/spidermonkey-research

nsIPrincipal*
nsXPConnect::GetPrincipal(JSObject* obj, bool allowShortCircuit) const
{
    MOZ_ASSERT(IS_WN_REFLECTOR(obj), "What kind of wrapper is this?");

    XPCWrappedNative* xpcWrapper = XPCWrappedNative::Get(obj);
    if (xpcWrapper) {
        if (allowShortCircuit) {
            nsIPrincipal* result = xpcWrapper->GetObjectPrincipal();
            if (result) {
                return result;
            }
        }

        // If not, check if it points to an nsIScriptObjectPrincipal
        nsCOMPtr<nsIScriptObjectPrincipal> objPrin =
            do_QueryInterface(xpcWrapper->Native());
        if (objPrin) {
            nsIPrincipal* result = objPrin->GetPrincipal();
            if (result) {
                return result;
            }
        }
    }

    return nullptr;
}