Sha256: e67a578347c48ed0f320744c8d79b51425ab0029b46d5fe2e4d9f48bec6ba851
Contents?: true
Size: 1.25 KB
Versions: 15
Compression:
Stored size: 1.25 KB
Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Metrics
# This cop checks for methods with too many parameters.
# The maximum number of parameters is configurable.
# Keyword arguments can optionally be excluded from the total count.
class ParameterLists < Base
include ConfigurableMax
MSG = 'Avoid parameter lists longer than %<max>d parameters. ' \
'[%<count>d/%<max>d]'
def on_args(node)
count = args_count(node)
return unless count > max_params
return if argument_to_lambda_or_proc?(node)
add_offense(node, message: format(MSG, max: max_params, count: args_count(node))) do
self.max = count
end
end
private
def_node_matcher :argument_to_lambda_or_proc?, <<~PATTERN
^lambda_or_proc?
PATTERN
def args_count(node)
if count_keyword_args?
node.children.size
else
node.children.count { |a| !%i[kwoptarg kwarg].include?(a.type) }
end
end
def max_params
cop_config['Max']
end
def count_keyword_args?
cop_config['CountKeywordArgs']
end
end
end
end
end
Version data entries
15 entries across 15 versions & 3 rubygems