From 60bc2979404d53de24926c02ae4471a73f91a53f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ma=C3=ABlle=20Salmon?= <maelle.salmon@yahoo.se>
Date: Mon, 24 Feb 2025 10:39:16 +0100
Subject: [PATCH] refactor: one less tmp use case

---
 R/plot.common.R | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/R/plot.common.R b/R/plot.common.R
index 40e5d68924..f5342fae70 100644
--- a/R/plot.common.R
+++ b/R/plot.common.R
@@ -556,11 +556,18 @@ i.get.arrow.mode <- function(graph, arrow.mode = NULL) {
   }
 
   if (is.character(arrow.mode)) {
-    tmp <- numeric(length(arrow.mode))
-    tmp[arrow.mode %in% c("<", "<-")] <- 1
-    tmp[arrow.mode %in% c(">", "->")] <- 2
-    tmp[arrow.mode %in% c("<>", "<->")] <- 3
-    arrow.mode <- tmp
+    arrow.mode <- map_dbl(
+      arrow.mode,
+      \(x) switch(
+        x,
+        "<"   = 1,
+        "<-"  = 1,
+        ">"   = 2,
+        "->"  = 2,
+        "<>"  = 3,
+        "<->" = 3
+      )
+    )
   }
 
   if (is.null(arrow.mode)) {