From 6eb9cf17f161522d4eddf6783284952f8a84f099 Mon Sep 17 00:00:00 2001
From: Eduardo Julian
Date: Sun, 15 Apr 2018 02:24:27 -0400
Subject: - Fixes for R back-end.

---
 new-luxc/source/luxc/lang/host/r.lux | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

(limited to 'new-luxc/source/luxc/lang/host')

diff --git a/new-luxc/source/luxc/lang/host/r.lux b/new-luxc/source/luxc/lang/host/r.lux
index 5394b756f..6af15d058 100644
--- a/new-luxc/source/luxc/lang/host/r.lux
+++ b/new-luxc/source/luxc/lang/host/r.lux
@@ -44,10 +44,15 @@
     (|>> (format "\n")
          (text.replace-all "\n" "\n  ")))
 
-  (def: (block expression)
+  (def: (_block expression)
     (-> Text Text)
     (format "{" (nest expression) "\n" "}"))
 
+  (def: #export (block expression)
+    (-> Expression Expression)
+    (@abstraction
+     (format "{" (@representation expression) "}")))
+
   (def: #export null
     Expression
     (|> "NULL" self-contained))
@@ -135,7 +140,7 @@
     (self-contained
      (format (@representation func)
              (format "("
-                     (text.join-with "," (list/map expression args))
+                     (text.join-with "," (list/map expression args)) ","
                      (text.join-with "," (list/map (.function (_ [key val])
                                                      (format key "=" (expression val)))
                                                    kw-args))
@@ -150,14 +155,14 @@
     (-> Expression Expression Expression Expression)
     (self-contained
      (format "if(" (@representation test) ")"
-             " " (block (@representation then))
-             " else " (block (@representation else)))))
+             " " (.._block (@representation then))
+             " else " (.._block (@representation else)))))
 
   (def: #export (when test then)
     (-> Expression Expression Expression)
     (self-contained
      (format "if(" (@representation test) ") {"
-             (block (@representation then))
+             (.._block (@representation then))
              "\n" "}")))
 
   (def: #export (cond clauses else)
@@ -237,7 +242,7 @@
     (let [args (|> inputs (list/map ..name) (text.join-with ", "))]
       (self-contained
        (format "function(" args ") "
-               (..block (@representation body))))))
+               (.._block (@representation body))))))
 
   (def: #export (try body warning error finally)
     (-> Expression (Maybe Expression) (Maybe Expression) (Maybe Expression) Expression)
@@ -248,23 +253,23 @@
                             (maybe.default ""))))]
       (self-contained
        (format "tryCatch("
-               (..block (@representation body))
+               (.._block (@representation body))
                (optional "warning" warning id)
                (optional "error" error id)
-               (optional "finally" finally ..block)
+               (optional "finally" finally .._block)
                ")"))))
 
   (def: #export (while test body)
     (-> Expression Expression Expression)
     (self-contained
      (format "while (" (@representation test) ") "
-             (..block (@representation body)))))
+             (.._block (@representation body)))))
 
   (def: #export (for-in var inputs body)
     (-> SVar Expression Expression Expression)
     (self-contained
      (format "for (" (..name var) " in " (..expression inputs) ")"
-             (..block (@representation body)))))
+             (.._block (@representation body)))))
 
   (do-template [<name> <keyword>]
     [(def: #export (<name> message)
@@ -283,7 +288,7 @@
   (def: #export (set-nth! idx value list)
     (-> Expression Expression SVar Expression)
     (self-contained
-     (format (..name list) "[" (@representation idx) "] <- " (@representation value))))
+     (format (..name list) "[[" (@representation idx) "]] <- " (@representation value))))
 
   (def: #export (then pre post)
     (-> Expression Expression Expression)
-- 
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