createProxy: Create an R function to call a native routine

In duncantl/RLLVMCompile: LLVM-based compiler for R code

Description

This is a simple function that generates a compiled routine that we can call to invoke the native routine. We can already do this with rdyncall or Rffi. However, this is another approach that uses LLVM.

It is not clear we actually need this. We can call existing routines directly (except with ...) via .llvm. See the example on the Function page.

Usage

createProxy(name, returnType, types = list(), id = sprintf("r%s", name),
             mod = Module(name), ee = ExecutionEngine(mod),
              env = globalenv(), sym = getNativeSymbolInfo(name)$address, ...)

Arguments

name	the name of the routine to which we are interfacing
returnType	the return type of the routine to which we are interfacing
types	the parameter types of the target routine
id	the name of the R routine
mod	the LLVM module in which to create the routine
ee	the LLVM execution engine
env	the environment for the R function
sym	the address of the routine to which we are interfacing
...	additional arguments

Value

The compiled routine that calls the native routine.

Author(s)

Duncan Temple Lang

See Also

.llvm

duncantl/RLLVMCompile documentation built on May 15, 2019, 5:31 p.m.