Make nClass interfaces (R6 classes) use the same scoping for compiled as uncompiled

This PR sets the parent_env of the R6 class generated to interface to a compiled nClass object to achieve the same scoping as the uncompiled nClass. See #96

Author: perrydv

nCompiler/R/NC_FullCompiledInterface.R

@@ -55,7 +55,7 @@
 #' @export
 build_compiled_nClass <- function(NCgenerator,
                                   newCobjFun,
-                                  env = parent.frame(),
+                                  env = NCgenerator$parent_env,
                                   quoted = FALSE) {
   # One might wonder if we can have an R6 class created here to
   # interface with a compiled C++ class be established with

nCompiler/R/nCompile.R

@@ -670,8 +670,8 @@ nCompile_finish_nonpackage <- function(units,
           } else {
             if(expect_createFromR[i]) createFromR_fun <- compiledFuns[[iRes]]
             R6interfaces[[i]] <- try(build_compiled_nClass(units[[i]],
-                                                            createFromR_fun,
-                                                            env = resultEnv))
+                                                            createFromR_fun))
+                                                           # env = resultEnv))
             if(inherits(R6interfaces[[i]], "try-error")) {
               warning(paste0("There was a problem building a full nClass interface for ", exportNames[i], "."))
               R6interfaces[[i]] <- NULL