[Rcpp-devel] Question about modules

[Romain Francois]

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 à 17:45, Tim Keitt <tkeitt at utexas.edu> a écrit :

> 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 à 03:16, Tim Keitt <tkeitt at utexas.edu> a écrit :
> 
>> 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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> 
> 
> 
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> http://www.keittlab.org/
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