Functions to aid generating R and C/C++ code
These functions have grown out of the RGCCTranslationUnit and RCIndex packages and I am now putting them in their own package, with a focus on the RCIndex data types.
The idea underlying the package is that we have some native code - either C or C++ - and we obtain a description of the elements of that code. We then generate wrapper functions and routines to interface R to that code. This package provides functionality to help generate these wrapper functions and routines. Often, one will use contextual information to customize these functions. There are several hooks and parameters to enable such customization. In other cases, one builds new/alternative functions that build on the lower-level functions.
We can obtain a description of the native code elements in various different ways.
- RCIndex uses the libclang API (and is now my preferred approach).
- RGCCTranslationUnit uses gcc -fdump-translation-unit.
- gcc-xml emits descriptions of code in an XML format. (The rdyncall package uses this.)
- The SWinTypeLibs package reads information from Windows type libraries.
This code is used to create code for other packages and these serve as examples. See
- RGraphicsDevice,
- RCIndex (named RClangSimple on github), and
- RCUDA
- Rrawpoppler packages. See the TU/ directories in those packages.