Class: RuboCop::Cop::Layout::SpaceInsideReferenceBrackets

Inherits:
Cop
  • Object
show all
Includes:
ConfigurableEnforcedStyle, SurroundingSpace
Defined in:
lib/rubocop/cop/layout/space_inside_reference_brackets.rb

Overview

Checks that reference brackets have or don’t have surrounding space depending on configuration.

Examples:

EnforcedStyle: no_space (default)

# The `no_space` style enforces that reference brackets have
# no surrounding space.

# bad
hash[ :key ]
array[ index ]

# good
hash[:key]
array[index]

EnforcedStyle: space

# The `space` style enforces that reference brackets have
# surrounding space.

# bad
hash[:key]
array[index]

# good
hash[ :key ]
array[ index ]

EnforcedStyleForEmptyBrackets: no_space (default)

# The `no_space` EnforcedStyleForEmptyBrackets style enforces that
# empty reference brackets do not contain spaces.

# bad
foo[ ]
foo[     ]

# good
foo[]

EnforcedStyleForEmptyBrackets: space

# The `space` EnforcedStyleForEmptyBrackets style enforces that
# empty reference brackets contain exactly one space.

# bad
foo[]
foo[    ]

# good
foo[ ]

Constant Summary collapse

MSG = 
'%<command>s space inside reference brackets.'.freeze
EMPTY_MSG = 
'%<command>s space inside empty reference brackets.'.freeze
BRACKET_METHODS = 
%i[[] []=].freeze

Constants included from SurroundingSpace

SurroundingSpace::NO_SPACE_COMMAND, SurroundingSpace::SPACE_COMMAND

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?, #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, 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/layout/space_inside_reference_brackets.rb', line 84

def autocorrect(node)
  lambda do |corrector|
    left, right = reference_brackets(node)

    if empty_brackets?(left, right)
      SpaceCorrector.empty_corrections(processed_source, corrector,
                                       empty_config, left, right)
    elsif style == :no_space
      SpaceCorrector.remove_space(processed_source, corrector,
                                  left, right)
    else
      SpaceCorrector.add_space(processed_source, corrector, left, right)
    end
  end
end

#on_send(node) ⇒ Object 



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# File 'lib/rubocop/cop/layout/space_inside_reference_brackets.rb', line 65

def on_send(node)
  return if node.multiline?
  return unless bracket_method?(node)
  tokens = tokens(node)
  left_token = left_ref_bracket(node, tokens)
  return unless left_token
  right_token = closing_bracket(tokens, left_token)

  if empty_brackets?(left_token, right_token)
    return empty_offenses(node, left_token, right_token, EMPTY_MSG)
  end

  if style == :no_space
    no_space_offenses(node, left_token, right_token, MSG)
  else
    space_offenses(node, left_token, right_token, MSG)
  end
end