class RuboCop::Cop::Metrics::ParameterLists
This cop checks for methods with too many parameters. The maximum number of parameters is configurable. On Ruby 2.0+ keyword arguments can optionally be excluded from the total count.
Constants
- MSG
Public Instance Methods
on_args(node)
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# File lib/rubocop/cop/metrics/parameter_lists.rb, line 15 def on_args(node) count = args_count(node) return unless count > max_params add_offense(node, :expression, format(MSG, max_params)) do self.max = count end end
Private Instance Methods
args_count(node)
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# File lib/rubocop/cop/metrics/parameter_lists.rb, line 26 def args_count(node) if count_keyword_args? node.children.size else node.children.count { |a| ![:kwoptarg, :kwarg].include?(a.type) } end end
count_keyword_args?()
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# File lib/rubocop/cop/metrics/parameter_lists.rb, line 38 def count_keyword_args? cop_config['CountKeywordArgs'] end
max_params()
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# File lib/rubocop/cop/metrics/parameter_lists.rb, line 34 def max_params cop_config['Max'] end