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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Metrics
# This cop checks if the length of a block exceeds some maximum value.
# Comment lines can optionally be ignored.
# The maximum allowed length is configurable.
# The cop can be configured to ignore blocks passed to certain methods.
class BlockLength < Cop
include TooManyLines
LABEL = 'Block'.freeze
def on_block(node)
return if excluded_method?(node)
return if node.class_constructor?
check_code_length(node)
end
private
def excluded_method?(node)
node_receiver = node.receiver && node.receiver.source.gsub(/\s+/, '')
node_method = String(node.method_name)
excluded_methods.any? do |config|
receiver, method = config.split('.')
unless method
method = receiver
receiver = node_receiver
end
method == node_method && receiver == node_receiver
end
end
def excluded_methods
cop_config['ExcludedMethods'] || []
end
def cop_label
LABEL
end
end
end
end
end
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