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boB Rudis 2 months ago
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8 changed files with 154 additions and 14 deletions
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      .Rbuildignore
  2. +6
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      DESCRIPTION
  3. +2
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      LICENSE
  4. +21
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      LICENSE.md
  5. +2
    -2
      NAMESPACE
  6. +117
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      R/add-reg-glue.R
  7. +3
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      R/swiftr-package.R
  8. +2
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      man/swiftr.Rd

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- 0
.Rbuildignore View File

@ -19,3 +19,4 @@
^CRAN-RELEASE$
^appveyor\.yml$
^tools$
^LICENSE\.md$

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DESCRIPTION View File

@ -1,6 +1,6 @@
Package: swiftr
Type: Package
Title: swiftr title goes here otherwise CRAN checks fail
Title: Seamless R and Swift Integration
Version: 0.1.0
Date: 2021-01-24
Authors@R: c(
@ -8,17 +8,17 @@ Authors@R: c(
comment = c(ORCID = "0000-0001-5670-2640"))
)
Maintainer: Bob Rudis <bob@rud.is>
Description: A good description goes here otherwise CRAN checks fail.
Description: eamless R and Swift Integration
URL: https://git.rud.is/hrbrmstr/swiftr
BugReports: https://git.rud.is/hrbrmstr/swiftr/issues
Encoding: UTF-8
License: AGPL
License: MIT + file LICENSE
Suggests:
covr, tinytest
Depends:
R (>= 3.5.0)
R (>= 3.6.0)
Imports:
httr,
jsonlite
rprojroot,
stringi
Roxygen: list(markdown = TRUE)
RoxygenNote: 7.1.1

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LICENSE View File

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YEAR: 2021
COPYRIGHT HOLDER: Bob Rudis

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LICENSE.md View File

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# MIT License
Copyright (c) 2021 Bob Rudis
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

+ 2
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NAMESPACE View File

@ -1,4 +1,4 @@
# Generated by roxygen2: do not edit by hand
import(httr)
importFrom(jsonlite,fromJSON)
export(add_registration_glue)
import(rprojroot)

+ 117
- 0
R/add-reg-glue.R View File

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auto_gen_note <- "// Generated by swiftr: do not edit by hand"
preamble <- '#include <R.h>
#include <Rinternals.h>
#include <stdlib.h>
#include <R_ext/Rdynload.h>
'
extern_template <- "extern SEXP %s(%s);"
method_template <- ' {"%s", (DL_FUNC) &%s, %s},'
postamble_template <- '
static const R_CallMethodDef CallEntries[] = {
%s
{NULL, NULL, 0}
};
void R_init_daybreak(DllInfo *dll) {
R_registerRoutines(dll, NULL, CallEntries, NULL, NULL);
R_useDynamicSymbols(dll, FALSE);
}
'
populate_template <- function(src_dir, swift_src, glue_src) {
wd <- getwd()
on.exit(setwd(wd))
setwd(src_dir)
gsub(
"^import ", "",
grep("^import", readLines(file.path(src_dir, swift_src), warn=FALSE), value=TRUE)
) -> imports
if (length(imports) >= 1) {
imports <- sprintf("-framework %s", imports)
}
system2(
command = Sys.which("swiftc"),
args = c(
"-I /Library/Frameworks/R.framework/Headers",
"-F/Library/Frameworks",
"-framework R",
imports,
"-print-ast",
sprintf("-import-objc-header %s", glue_src),
swift_src
),
stdout = TRUE,
stderr = TRUE
) -> ast
func_lines <- which(grepl("@_cdec", ast))
funcs <- gsub('@_cdecl\\("|"\\)', "", ast[func_lines])
sexp_cts <- stringi::stri_count_fixed(ast[func_lines+1], "SEXP")-1
paste0(
mapply(function(func, sexp_ct) {
sprintf(extern_template, func, paste0(rep("SEXP", sexp_ct), collapse = ", "))
}, funcs, sexp_cts, SIMPLIFY = TRUE, USE.NAMES = FALSE),
collapse = "\n"
) -> externs
paste0(
mapply(function(func, sexp_ct) {
sprintf(method_template, func, func, sexp_ct)
}, funcs, sexp_cts, SIMPLIFY = TRUE, USE.NAMES = FALSE),
collapse = "\n"
) -> methods
paste(
auto_gen_note,
preamble,
externs,
sprintf(postamble_template, methods),
sep = "\n"
)
}
init_file_auto_generated <- function(src_dir) {
init_file <- file.path(src_dir, "init.c")
if (file.exists(init_file)) {
grepl(sprintf("^%s", auto_gen_note), readLines(init_file)[1])
} else {
TRUE
}
}
#' @export
add_registration_glue <- function(package = ".") {
makevars <- rprojroot::find_package_root_file("src/Makevars")
src_dir <- dirname(makevars)
if (init_file_auto_generated(src_dir)) {
swift_src <- list.files(src_dir, pattern = "swift$")
glue_src <- list.files(src_dir, pattern = "h$")
tmpl <- populate_template(src_dir, swift_src, glue_src)
writeLines(tmpl, file.path(src_dir, "init.c"))
} else {
stop("init.c was not auto-generated. Aborting.")
}
}

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R/swiftr-package.R View File

@ -1,9 +1,8 @@
#' ...
#'
#' Seamless R and Swift Integration
#'
#' @md
#' @name swiftr
#' @keywords internal
#' @author Bob Rudis (bob@@rud.is)
#' @import httr
#' @importFrom jsonlite fromJSON
#' @import rprojroot stringi
"_PACKAGE"

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man/swiftr.Rd View File

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\name{swiftr}
\alias{swiftr}
\alias{swiftr-package}
\title{...}
\title{Seamless R and Swift Integration}
\description{
A good description goes here otherwise CRAN checks fail.
eamless R and Swift Integration
}
\seealso{
Useful links:


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