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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Lint
# This cop checks for *rescue* blocks targeting the Exception class.
#
# @example
#
# # bad
#
# begin
# do_something
# rescue Exception
# handle_exception
# end
#
# @example
#
# # good
#
# begin
# do_something
# rescue ArgumentError
# handle_exception
# end
class RescueException < Cop
MSG = 'Avoid rescuing the `Exception` class. ' \
'Perhaps you meant to rescue `StandardError`?'.freeze
def on_resbody(node)
return unless node.children.first
rescue_args = node.children.first.children
return unless rescue_args.any? { |a| targets_exception?(a) }
add_offense(node)
end
def targets_exception?(rescue_arg_node)
rescue_arg_node.const_name == 'Exception'
end
end
end
end
end
Version data entries
15 entries across 15 versions & 2 rubygems