Class: RuboCop::Cop::Style::MixinGrouping

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Includes:
ConfigurableEnforcedStyle
Defined in:
lib/rubocop/cop/style/mixin_grouping.rb

Overview

Checks for grouping of mixins in ‘class` and `module` bodies. By default it enforces mixins to be placed in separate declarations, but it can be configured to enforce grouping them in one declaration.

Examples:

EnforcedStyle: separated (default)

# bad
class Foo
  include Bar, Qox
end

# good
class Foo
  include Qox
  include Bar
end

EnforcedStyle: grouped

# bad
class Foo
  extend Bar
  extend Qox
end

# good
class Foo
  extend Qox, Bar
end

Constant Summary collapse

MIXIN_METHODS = 
%i[extend include prepend].freeze
MSG = 
'Put `%<mixin>s` mixins in %<suffix>s.'

Instance Method Summary collapse

Methods included from AutoCorrector

support_autocorrect?

Methods included from ConfigurableEnforcedStyle

#alternative_style, #alternative_styles, #ambiguous_style_detected, #correct_style_detected, #detected_style, #detected_style=, #no_acceptable_style!, #no_acceptable_style?, #opposite_style_detected, #style, #style_configured?, #style_detected, #style_parameter_name, #supported_styles, #unexpected_style_detected

Instance Method Details

#on_class(node) ⇒ Object Also known as: on_module 



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# File 'lib/rubocop/cop/style/mixin_grouping.rb', line 40

def on_class(node)
  begin_node = node.child_nodes.find(&:begin_type?) || node
  begin_node.each_child_node(:send).select(&:macro?).each do |macro|
    next if !MIXIN_METHODS.include?(macro.method_name) || macro.arguments.empty?

    check(macro)
  end
end