Sha256: 2b03ac1f690e160e1f1d8b6dc3653dfb66dfc0e7c5b9df6434257405c05a50cc
Contents?: true
Size: 1.58 KB
Versions: 14
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Stored size: 1.58 KB
Contents
# encoding: utf-8
# frozen_string_literal: true
require 'set'
module RuboCop
module Cop
module Style
# This cop checks for tabs inside the source code.
class Tab < Cop
MSG = 'Tab detected.'.freeze
def investigate(processed_source)
str_lines = string_literal_lines(processed_source.ast)
processed_source.lines.each_with_index do |line, index|
match = line.match(/^( *)[\t ]*\t/)
next unless match
next if str_lines.include?(index + 1)
spaces = match.captures[0]
range = source_range(processed_source.buffer,
index + 1,
(spaces.length)...(match.end(0)))
add_offense(range, range, MSG)
end
end
private
def autocorrect(range)
lambda do |corrector|
corrector.replace(range, range.source.gsub(/\t/, ' '))
end
end
def string_literal_lines(ast)
# which lines start inside a string literal?
return [] if ast.nil?
ast.each_node(:str, :dstr).each_with_object(Set.new) do |str, lines|
loc = str.location
str_lines = if loc.is_a?(Parser::Source::Map::Heredoc)
body = loc.heredoc_body
(body.first_line)..(body.last_line)
else
(loc.first_line + 1)..(loc.last_line)
end
lines.merge(str_lines.to_a)
end
end
end
end
end
end
Version data entries
14 entries across 14 versions & 2 rubygems