blob: 42301d5512f87f987ae25bc684780d42c2116199 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
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
|
