class RuboCop::Cop::Style::DirEmpty
Prefer to use ‘Dir.empty?(’path/to/dir’)‘ when checking if a directory is empty.
@example
# bad Dir.entries('path/to/dir').size == 2 Dir.children('path/to/dir').empty? Dir.children('path/to/dir').size == 0 Dir.each_child('path/to/dir').none? # good Dir.empty?('path/to/dir')
Constants
- MSG
- RESTRICT_ON_SEND
Public Instance Methods
Source
# File lib/rubocop/cop/style/dir_empty.rb, line 37 def on_send(node) offensive?(node) do |const_node, arg_node| replacement = "#{bang(node)}#{const_node.source}.empty?(#{arg_node.source})" add_offense(node, message: format(MSG, replacement: replacement)) do |corrector| corrector.replace(node, replacement) end end end
Private Instance Methods
Source
# File lib/rubocop/cop/style/dir_empty.rb, line 48 def bang(node) '!' if %i[!= >].include? node.method_name end