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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# Enforces the use of consistent method names
# `Object#yield_self` or `Object#then`.
#
# @example EnforcedStyle: then (default)
#
# # bad
# obj.yield_self { |x| x.do_something }
#
# # good
# obj.then { |x| x.do_something }
#
# @example EnforcedStyle: yield_self
#
# # bad
# obj.then { |x| x.do_something }
#
# # good
# obj.yield_self { |x| x.do_something }
#
class ObjectThen < Base
include ConfigurableEnforcedStyle
extend AutoCorrector
MSG = 'Prefer `%<prefer>s` over `%<current>s`.'
def on_block(node)
check_method_node(node.send_node)
end
def on_send(node)
return unless node.arguments.one? && node.first_argument.block_pass_type?
check_method_node(node)
end
private
def check_method_node(node)
return unless preferred_method(node)
message = message(node)
add_offense(node.loc.selector, message: message) do |corrector|
corrector.replace(node.loc.selector, style.to_s)
end
end
def preferred_method(node)
case style
when :then
node.method?(:yield_self)
when :yield_self
node.method?(:then)
else
false
end
end
def message(node)
format(MSG, prefer: style.to_s, current: node.method_name)
end
end
end
end
end
Version data entries
11 entries across 11 versions & 2 rubygems