Class: RuboCop::Cop::Style::MultilineMemoization

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

Overview

This cop checks expressions wrapping styles for multiline memoization.

Examples:

EnforcedStyle: keyword (default)

# bad
foo ||= (
  bar
  baz
)

# good
foo ||= begin
  bar
  baz
end

EnforcedStyle: braces

# bad
foo ||= begin
  bar
  baz
end

# good
foo ||= (
  bar
  baz
)

Constant Summary collapse

MSG = 
'Wrap multiline memoization blocks in `begin` and `end`.'.freeze

Constants included from Util

Util::LITERAL_REGEX

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?, #message, #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, parentheses?, same_line?, to_string_literal, to_supported_styles, tokens

Methods included from PathUtil

absolute?, hidden_dir?, hidden_file_in_not_hidden_dir?, 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/multiline_memoization.rb', line 46

def autocorrect(node)
  lambda do |corrector|
    if style == :keyword
      keyword_autocorrect(node, corrector)
    else
      corrector.replace(node.loc.begin, '(')
      corrector.replace(node.loc.end, ')')
    end
  end
end

#on_or_asgn(node) ⇒ Object 



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# File 'lib/rubocop/cop/style/multiline_memoization.rb', line 38

def on_or_asgn(node)
  _lhs, rhs = *node

  return unless bad_rhs?(rhs)

  add_offense(rhs, location: node.source_range)
end