string type check based on #to_str to encourage duck typing; #1616

2026-06-08 16:11:16 +00:00 · 2013-12-24 07:02:37 +09:00
parent d957a67841
commit 4d92d2e1aa
1 changed files with 1 additions and 1 deletions
@@ -137,7 +137,7 @@ class String
  ##
  # ISO 15.2.10.5.5
  def =~(re)
-    if re.is_a? String
+    if re.respond_to? :to_str
      raise TypeError, "type mismatch: String given"
    end
    re =~ self