miscs_and_todo.md

In fdieulle/sharper: R interoperability with .Net Core and .Net Framework

Todo list:

• [ ] Review the logger into ClrProxy because it logs in a file for now.
• [ ] Test if the GC moves .Net objects which are shared through ExternalPtr.
• [ ] Find a better test for disposing external ptr.
• [ ] Check if RClrProxy.def is useless and should use only the sharper-win.def only.
• [x] Turn publish dotnet in Release mode
• [ ] Assemblies lazy loading. To avoid calling netLoadAssemblies The start_dotnet_clr function should be able to define the application base directory and for .Net core can define different folder through tpa_list
• [ ] Check if this CLR supports the .Net framework. Otherwise import the cpp code from r.net package. and implements a FrameworkClrHost.cpp
• [ ] Test to run a self contained application
• [ ] Check the package on Linux and Mac systems
• [ ] Create more details documentations through vignettes
• [ ] .Net interactions
• [ ] install/start/stop CLR
• [ ] data conversions
• [ ] How to create custom packages base on .Net assemblies
• [ ] Add netEvaluate function in R package which compiles and run C# code.
• [ ] Add netRun function which allows run a .Net application.

Technical consideration

With the CLR loaded a .Net AppDomain is also loaded, so all constraints linked to it are kept. The main constraint is that an AppDomain can't unload an assembly. It can't also load an assembly a second time. So if you want to update an assembly loaded you have to restart your R process and reload all assemblies.

You can load a .Net core application which has been published with self-contained without this step.

How compile sources

You can build the package by running the Build.cmd script file from windows.

or by executing this 2 following steps:

rscript -e devtools::document()
r CMD INSTALL . --build --clean

Prerequist

• R installed on your machine with the R_HOME environment variable defined which targets your current R version.
• dotnet installed. It's the CLI for .Net environments.

Compile with Visual Studio

Before the first compilation you need to run this script: src\prepare-vs-build.cmd and be sure that the variable at the begin of the script are valid with your machine setup.

SET R_HOME=%R_HOME%
SET RTOOLS=C:\Program Files\R\Rtools
SET VS_VC_BUILD="C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\VC\Auxiliary\Build"

fdieulle/sharper documentation built on Aug. 1, 2020, 4:19 p.m.