This is also something I'd appreciate for the devtools package. Hadley On Fri, Dec 16, 2011 at 7:36 AM, Daniel Adler <dad...@uni-goettingen.de> wrote: > Dear R Core Team, > > I have a question related to the programming interface for namespace object > creation at run-time. > > This is something that I need in the rdyncall package: > During the dynamic linkage binding of a shared C library, an R namespace > object is created > that gets populated with call wrappers, symbolic constants and type > information objects. > > For example, > >> dynport(SDL) # create namespace, populated with wrappers to SDL library >> search() # gives a "package:SDL" populated with all kinds of wrappers to >> the C functions, etc.. > [1] ".GlobalEnv" "package:SDL" > > I was trying various alternatives to get package-behaviour implemented in > transparent manner for the end-user. > > The current version uses real namespace environments with all sorts of > advantages such as support for > search(), detach() and '::'. > > Namespace object have certain conventions for fields, and there is currently > no > public interface available in 'base' for setting up such objects; > The function "makeNamespace" in src/library/base/namespace.R is defined as > local function to "loadNamespace". > So I go about this problem by 'copying' the code. > > Recently, R-2.14 introduced a new mandatory field 'lazyData' which mades > rdyncall broken. > (By re-synchronizing with 'makeNamespace' it has been fixed in 0.7.4.) > > Would it be possible and feasible to make namespace-related management > functions such as makeNamespace and sealNamespace > available as an public accessible interface? Or at least accessible via ':::' > ? > > I would also appreciate any hint/idea for alternative ways to implement the > above described behaviour. > > Here is the link to the code used for creation of dynamic C binding > namespaces: > http://dyncall.org/svn/dyncall/trunk/bindings/R/rdyncall/R/dynport.R > > best wishes, > - Daniel > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel
-- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/ ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
