On Sun, Jan 23, 2011 at 2:40 AM, TONGARI <tongari95@gmail.com> wrote: Use Fusion's MPL sequences adapters, so you can have:
typedef typename mpl::transform < parameter_types , from_data_source<mpl::_1>
, mpl::back_inserter<mpl::vector<> > >::type data_source_provider; // a MPL sequence
And invoke as:
fs::invoke(f, data_source_provider());
where from_data_source<T> is defined as:
template<class T> struct from_data_source { operator T() const
{ return data_source<T>().pop(); } };
Maybe your data_source<T>() is some singleton for the data source?
Hmm! That seems more succinct than the explicit recursion in the interpreter.hpp example. Apologies if this is a silly question, but suppose the object from which I'd like to obtain parameter values is locally constructed rather than global? How would I parameterize the mpl::transform expression above to pass in that object?