From df3a13ce65112a4568584e4846dd69be3ca818d1 Mon Sep 17 00:00:00 2001
From: Michael Chirico <michael.chirico@grabtaxi.com>
Date: Sun, 22 Sep 2019 14:17:11 +0800
Subject: [PATCH] data.table Depends->Imports

---
 .gitignore     | 5 +++++
 DESCRIPTION    | 7 ++++---
 NAMESPACE      | 3 ++-
 R/bpp_viewer.r | 4 +++-
 4 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/.gitignore b/.gitignore
index e4b351d..2c1c3b3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,8 @@
 /rsc/
 /wfx/
 /zfx/
+
+#artifacts of R CMD build/check
+*.Rcheck
+*.tar.gz
+
diff --git a/DESCRIPTION b/DESCRIPTION
index 314aeb1..543cabe 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -20,10 +20,11 @@ Description: Basic infrastructure and several algorithms for 1d-4d bin packing
     The item can be rotated into any orthogonal direction, and no further
     restrictions implied.
 License: MIT + file LICENSE
-Depends: R (>= 3.0.0),
-    magrittr, data.table
+Depends: R (>= 3.0.2),
+    magrittr
 Imports: methods,
-    Rcpp (>= 0.12.7)
+    Rcpp (>= 0.12.7),
+    data.table
 Suggests: testthat,
     knitr, rmarkdown, rgl
 LinkingTo: Rcpp, RcppArmadillo (>= 0.7.400.2.0)
diff --git a/NAMESPACE b/NAMESPACE
index bcd3dff..20c65b9 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -1,4 +1,5 @@
 useDynLib(gbp)
+importFrom(data.table, data.table, copy)
 importFrom(Rcpp, evalCpp)
-import(methods, magrittr, data.table, Rcpp)
+import(methods, magrittr, Rcpp)
 exportPattern("^[[:alpha:]]+")
diff --git a/R/bpp_viewer.r b/R/bpp_viewer.r
index 41d9f64..baea8a3 100644
--- a/R/bpp_viewer.r
+++ b/R/bpp_viewer.r
@@ -165,6 +165,9 @@ bpp_viewer <- function(
 #' @family bpp_viewer
 #' @rdname bpp_viewer_single
 #' @export
+.N = NULL
+`:=` = function(...) NULL
+
 bpp_viewer_single <- function(
   it, bn, title = NULL, subtitle = NULL, it_rgl_control = NULL, bn_rgl_control = NULL, label_it = TRUE, label_bn = TRUE
 ) {
@@ -337,4 +340,3 @@ create_bn_rgl_control <- function() {
 
 }
 #------------------------------------------------------------------------------#
-