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

Inherits:
Cop
  • Object
show all
Includes:
ConfigurableEnforcedStyle
Defined in:
lib/rubocop/cop/style/mixin_grouping.rb

Overview

This cop 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.'.freeze

Constants included from Util

Util::ASGN_NODES, Util::CONDITIONAL_NODES, Util::EQUALS_ASGN_NODES, Util::LITERAL_REGEX, Util::LOGICAL_OPERATOR_NODES, Util::MODIFIER_NODES, Util::OPERATOR_METHODS, Util::SHORTHAND_ASGN_NODES

Instance Attribute Summary

Attributes inherited from Cop

#config, #corrections, #offenses, #processed_source

Instance Method Summary collapse

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_detected, #style_parameter_name, #supported_styles, #unexpected_style_detected

Methods inherited from Cop

#add_offense, all, autocorrect_incompatible_with, badge, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, #cop_name, cop_name, #correct, department, #duplicate_location?, #excluded_file?, #find_location, #highlights, inherited, #initialize, #join_force?, lint?, match?, #messages, non_rails, #parse, qualified_cop_name, #relevant_file?, #target_rails_version, #target_ruby_version

Methods included from AST::Sexp

#s

Methods included from NodePattern::Macros

#def_node_matcher, #def_node_search, #node_search, #node_search_all, #node_search_body, #node_search_first

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #support_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

begins_its_line?, comment_line?, double_quotes_required?, escape_string, first_part_of_call_chain, interpret_string_escapes, line_range, needs_escaping?, on_node, operator?, parentheses?, same_line?, to_string_literal, to_supported_styles, tokens

Methods included from PathUtil

absolute?, match_path?, pwd, relative_path, reset_pwd, smart_path

Constructor Details

This class inherits a constructor from RuboCop::Cop::Cop

Instance Method Details

#autocorrect(node) ⇒ Object 



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# File 'lib/rubocop/cop/style/mixin_grouping.rb', line 50

def autocorrect(node)
  range = node.loc.expression
  if separated_style?
    correction = separate_mixins(node)
  else
    mixins = sibling_mixins(node)
    if node == mixins.first
      correction = group_mixins(node, mixins)
    else
      range = range_to_remove_for_subsequent_mixin(mixins, node)
      correction = ''
    end
  end

  ->(corrector) { corrector.replace(range, correction) }
end

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



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# File 'lib/rubocop/cop/style/mixin_grouping.rb', line 39

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 unless MIXIN_METHODS.include?(macro.method_name)

    check(macro)
  end
end