[Rcpp-devel] Question about modules

Hi,

The module docs is probably the one in the worst shape. I think the
current recommendation is to have this in one of your .R files:

loadModule( "yourmodule", TRUE )

which triggers a load action for when the package is loaded.

Romain

Le 9 janv. 2014 ? 17:45, Tim Keitt <tkeitt at utexas.edu> a ?crit :

OK. Not quite as automatic as I thought.

Its now loading the class using 'loadRcppModules' in '.onLoad'.

Still a little lost. I'll have to re-read the modules docs. Not sure how
to use the class. The factory did not get exposed. Do I have to expose it
separately eg using attributes?

THK


On Thu, Jan 9, 2014 at 10:20 AM, Tim Keitt <tkeitt at utexas.edu> wrote:

Thanks. That at least compiles. (If anyone is curious, through
trial-and-error it appears .factory is not a template and takes a single
argument, the factory function pointer.)

However I am not seeing any of my functions exported to the package. How
would the factory be called from R? I sort of understood that exporting in
packages was automatic. Do I have to manually create the module in R?

THK


On Thu, Jan 9, 2014 at 4:40 AM, Romain Francois <romain at r-enthusiasts.com

wrote:

Hello,

You can use .factory instead of .constructor in that case.

Romain

Le 9 janv. 2014 ? 03:16, Tim Keitt <tkeitt at utexas.edu> a ?crit :

I did a little experiment with RCPP_MODULE trying to wrap a class from
another library. The class in question has a protected default constructor
and uses a non-member factory function for instantiation.

In short I did not get it to work. I am assuming that if you do not
include a .constuctor statement, then the class does not get wrapped in the
module. Is that correct?

THK

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