1 files changed, 34 insertions, 0 deletions
diff --git a/rubocop/cop/ban_catch_throw.rb b/rubocop/cop/ban_catch_throw.rb
new file mode 100644
index 00000000000..42301d5512f
--- /dev/null
+++ b/rubocop/cop/ban_catch_throw.rb
@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+module RuboCop
+  module Cop
+    # Bans the use of 'catch/throw', as exceptions are better for errors and
+    # they are equivalent to 'goto' for flow control, with all the problems
+    # that implies.
+    #
+    # @example
+    #   # bad
+    #   catch(:error) do
+    #     throw(:error)
+    #   end
+    #
+    #   # good
+    #   begin
+    #     raise StandardError
+    #   rescue StandardError => err
+    #     # ...
+    #   end
+    #
+    class BanCatchThrow < RuboCop::Cop::Cop
+      MSG = "Do not use catch or throw unless a gem's API demands it."
+
+      def on_send(node)
+        receiver, method_name, _ = *node
+
+        return unless receiver.nil? && %i[catch throw].include?(method_name)
+
+        add_offense(node, location: :expression)
+      end
+    end
+  end
+end