/usr/include/thunderbird-11.0.1/nsIInterfaceRequestorUtils.h is in thunderbird-dev 11.0.1+build1-0ubuntu2.
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#ifndef __nsInterfaceRequestorUtils_h
#define __nsInterfaceRequestorUtils_h
#include "nsCOMPtr.h"
// a type-safe shortcut for calling the |GetInterface()| member function
// T must inherit from nsIInterfaceRequestor, but the cast may be ambiguous.
template <class T, class DestinationType>
inline
nsresult
CallGetInterface( T* aSource, DestinationType** aDestination )
{
NS_PRECONDITION(aSource, "null parameter");
NS_PRECONDITION(aDestination, "null parameter");
return aSource->GetInterface(NS_GET_TEMPLATE_IID(DestinationType),
reinterpret_cast<void**>(aDestination));
}
class NS_COM_GLUE nsGetInterface : public nsCOMPtr_helper
{
public:
nsGetInterface( nsISupports* aSource, nsresult* error )
: mSource(aSource),
mErrorPtr(error)
{
// nothing else to do here
}
virtual nsresult NS_FASTCALL operator()( const nsIID&, void** ) const;
private:
nsISupports* mSource;
nsresult* mErrorPtr;
};
inline
const nsGetInterface
do_GetInterface( nsISupports* aSource, nsresult* error = 0 )
{
return nsGetInterface(aSource, error);
}
#endif // __nsInterfaceRequestorUtils_h
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