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Versions: 11
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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Lint
# This cop checks for string conversion in string interpolation,
# which is redundant.
#
# @example
#
# "result is #{something.to_s}"
class StringConversionInInterpolation < Cop
MSG_DEFAULT = 'Redundant use of `Object#to_s` in interpolation.'.freeze
MSG_SELF = 'Use `self` instead of `Object#to_s` in ' \
'interpolation.'.freeze
def on_dstr(node)
node.each_child_node(:begin) do |begin_node|
final_node = begin_node.children.last
next unless final_node && final_node.send_type?
receiver, method_name, *args = *final_node
next unless method_name == :to_s && args.empty?
add_offense(
final_node,
:selector,
receiver ? MSG_DEFAULT : MSG_SELF
)
end
end
private
def autocorrect(node)
lambda do |corrector|
receiver, _method_name, *_args = *node
corrector.replace(
node.source_range,
if receiver
receiver.source
else
'self'
end
)
end
end
end
end
end
end
Version data entries
11 entries across 11 versions & 2 rubygems