Sha256: 768e6377ea084730a90026b7f1047243f2f836bd1045b345ff9fa738e2370d79
Contents?: true
Size: 1.56 KB
Versions: 175
Compression:
Stored size: 1.56 KB
Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# Checks for using empty heredoc to reduce redundancy.
#
# @example
#
# # bad
# <<~EOS
# EOS
#
# <<-EOS
# EOS
#
# <<EOS
# EOS
#
# # good
# ''
#
# # bad
# do_something(<<~EOS)
# EOS
#
# do_something(<<-EOS)
# EOS
#
# do_something(<<EOS)
# EOS
#
# # good
# do_something('')
#
class EmptyHeredoc < Base
include Heredoc
include RangeHelp
extend AutoCorrector
MSG = 'Use an empty string literal instead of heredoc.'
def on_heredoc(node)
heredoc_body = node.loc.heredoc_body
return unless heredoc_body.source.empty?
add_offense(node) do |corrector|
heredoc_end = node.loc.heredoc_end
corrector.replace(node, preferred_string_literal)
corrector.remove(range_by_whole_lines(heredoc_body, include_final_newline: true))
corrector.remove(range_by_whole_lines(heredoc_end, include_final_newline: true))
end
end
private
def preferred_string_literal
enforce_double_quotes? ? '""' : "''"
end
def enforce_double_quotes?
string_literals_config['EnforcedStyle'] == 'double_quotes'
end
def string_literals_config
config.for_cop('Style/StringLiterals')
end
end
end
end
end
Version data entries
175 entries across 170 versions & 18 rubygems