Calling function from nsIContentSecurityPolicy.idl

[jeremy...@gmx.ch]

Hi,

I've declared a new function in nsIContentSecurityPolicy.idl:

AString getMyString();


I call this function from nsScriptLoader::ProcessScriptElement:

nsresult myRV = NS_OK;
nsCOMPtr<nsIContentSecurityPolicy> myCSP;
myRV = mDocument->NodePrincipal()->GetCsp(getter_AddRefs(myCSP));
NS_ENSURE_SUCCESS(myRV, false);

if (myCSP) {
nsAutoString myString = myCSP->GetMyString();


When I try to compile this I get an error c2660 function does not take 0 arguments. This seems weird to me as my declaration doesn't expect an argument?

Regards,
Jeremy

[Boris Zbarsky]

On 4/5/13 9:52 PM, jeremy...@gmx.ch wrote:
> AString getMyString();
....

> When I try to compile this I get an error c2660 function does not take 0 arguments. This seems weird to me as my declaration doesn't expect an argument?

The XPIDL C++ binding for AString return values turns them into a
"nsAString&" our param appended to the list of arguments.

Actually, that happens for _all_ return types in XPIDL, since the C++
versions of the methods all return nsresult.

See https://developer.mozilla.org/en-US/docs/XPIDL for more information.

-Boris

[jeremy...@gmx.ch]

Thanks you, that helped.

Jeremy