document() packages with c++ code

[baptiste]

I'm getting lots of errors when using document() on my package which contains a src directory with cpp code.:

document("~/Documents/github/cda")
Updating cda documentation
Loading cda
/Library/Frameworks/R.framework/Resources/bin/R --vanilla CMD SHLIB -o  \
  cda.so array.cpp cd.cpp cda.cpp internals.cpp linear.cpp utils.cpp  \
  zgels.f 

g++ -arch x86_64 -I/Library/Frameworks/R.framework/Resources/include -I/Library/Frameworks/R.framework/Resources/include/x86_64 -DNDEBUG  -I/usr/local/include    -fPIC  -g -O2  -c array.cpp -o array.o
In file included from array.cpp:1:
array.h:4:27: error: RcppArmadillo.h: No such file or directory
In file included from array.cpp:1:
array.h:6: error: 'arma' has not been declared
array.h:6: error: expected constructor, destructor, or type conversion before 'array_factor'
array.cpp:6: error: 'Rcpp' is not a namespace-name
array.cpp:6: error: expected namespace-name before ';' token
array.cpp:7: error: 'RcppArmadillo' is not a namespace-name
array.cpp:7: error: expected namespace-name before ';' token
array.cpp:9: error: 'arma' is not a namespace-name
array.cpp:9: error: expected namespace-name before ';' token
array.cpp:11: error: 'cx_colvec' does not name a type
array.cpp:44: error: expected constructor, destructor, or type conversion before '(' token
make: *** [array.o] Error 1
Error: Command failed (1)

Why is this function trying to compile the code? I'd expected it to be a simple wrapper for roxygen2::roxygenise, which runs without problem.

[hadley]

document runs load_all, which is needed because roxygen works dynamically, not statically, so needs to be able to load and execute all your code. I suspect #188 will probably remedy most of your problems.

[baptiste]

running c++ code seems a bit of an overkill for standard roxygen use (I must be missing out cool things); could it be an option for document() to simply use roxygenise?
Even then, my c++ code compiles fine outside load_all(), but that's another issue I guess.

[hadley]

Can you try with the dev version? We recently checked a set of changes from JJ to improve C++ handling.

[hadley]

Works for me in a package with C++ code.

[baptiste]

I still get an error with https://github.com/baptiste/cda/blob/master/R/zzz.r

Updating cda documentation
Loading cda
Error in loadRcppModules(direct = FALSE) : 
  loadRcppModules can only be used within a .onLoad function

[hadley]

Oooh, you're using modules. Could you please file a new bug (referencing load_all as the root of the problem)?