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Class: RuboCop::Cop::Layout::SpaceAroundEqualsInParameterDefault

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::RuboCop::Cop::AutoCorrector, ::RuboCop::Cop::Base, ::RuboCop::ExcludeLimit, NodePattern::Macros, RuboCop::AST::Sexp
Instance Chain:
Inherits: RuboCop::Cop::Base
Defined in: lib/rubocop/cop/layout/space_around_equals_in_parameter_default.rb

Overview

Checks that the equals signs in parameter default assignments have or don’t have surrounding space depending on configuration.

Examples:

EnforcedStyle: space (default)

# bad
def some_method(arg1=:default, arg2=nil, arg3=[])
  # do something...
end

# good
def some_method(arg1 = :default, arg2 = nil, arg3 = [])
  # do something...
end

EnforcedStyle: no_space

# bad
def some_method(arg1 = :default, arg2 = nil, arg3 = [])
  # do something...
end

# good
def some_method(arg1=:default, arg2=nil, arg3=[])
  # do something...
end

Constant Summary

::RuboCop::Cop::Base - Inherited

EMPTY_OFFENSES, RESTRICT_ON_SEND

::RuboCop::Cop::RangeHelp - Included

BYTE_ORDER_MARK, NOT_GIVEN

::RuboCop::Cop::SurroundingSpace - Included

NO_SPACE_COMMAND, SINGLE_SPACE_REGEXP, SPACE_COMMAND

::RuboCop::Cop::ConfigurableEnforcedStyle - Included

SYMBOL_TO_STRING_CACHE

Class Attribute Summary

::RuboCop::Cop::AutoCorrector - Extended

::RuboCop::Cop::Base - Inherited

.gem_requirements, .lint?,
.support_autocorrect?

Returns if class supports autocorrect.

.support_multiple_source?

Override if your cop should be called repeatedly for multiple investigations Between calls to on_new_investigation and on_investigation_end, the result of processed_source will remain constant.

Class Method Summary

::RuboCop::Cop::Base - Inherited

.autocorrect_incompatible_with

List of cops that should not try to autocorrect at the same time as this cop.

.badge

Naming.

.callbacks_needed, .cop_name, .department,
.documentation_url

Returns an url to view this cops documentation online.

.exclude_from_registry

Call for abstract Cop classes.

.inherited,
.joining_forces

Override and return the Force class(es) you need to join.

.match?

Returns true if the cop name or the cop namespace matches any of the given names.

.new,
.requires_gem

Register a version requirement for the given gem name.

.restrict_on_send

::RuboCop::ExcludeLimit - Extended

exclude_limit

Sets up a configuration option to have an exclude limit tracked.

transform

Instance Attribute Summary

Instance Method Summary

::RuboCop::Cop::ConfigurableEnforcedStyle - Included

::RuboCop::Cop::SurroundingSpace - Included

::RuboCop::Cop::RangeHelp - Included

#add_range, #column_offset_between,
#contents_range

A range containing only the contents of a literal with delimiters (e.g.

#directions,
#effective_column

Returns the column attribute of the range, except if the range is on the first line and there’s a byte order mark at the beginning of that line, in which case 1 is subtracted from the column value.

#final_pos, #move_pos, #move_pos_str, #range_between, #range_by_whole_lines, #range_with_comments, #range_with_comments_and_lines, #range_with_surrounding_comma, #range_with_surrounding_space, #source_range

::RuboCop::Cop::Base - Inherited

#add_global_offense

Adds an offense that has no particular location.

#add_offense

Adds an offense on the specified range (or node with an expression) Unless that offense is disabled for this range, a corrector will be yielded to provide the cop the opportunity to autocorrect the offense.

#begin_investigation

Called before any investigation.

#callbacks_needed,
#cop_config

Configuration Helpers.

#cop_name, #excluded_file?,
#external_dependency_checksum

This method should be overridden when a cop’s behavior depends on state that lives outside of these locations:

#inspect
#message

Gets called if no message is specified when calling add_offense or add_global_offense Cops are discouraged to override this; instead pass your message directly.

#name

Alias for Base#cop_name.

#offenses,
#on_investigation_end

Called after all on_…​

#on_new_investigation

Called before all on_…​

#on_other_file

Called instead of all on_…​

#parse

There should be very limited reasons for a Cop to do it’s own parsing.

#parser_engine,
#ready

Called between investigations.

#relevant_file?, #target_rails_version, #target_ruby_version, #annotate, #apply_correction, #attempt_correction,
#callback_argument

Reserved for Cop::Cop.

#complete_investigation

Called to complete an investigation.

#correct, #current_corrector,
#current_offense_locations

Reserved for Commissioner:

#current_offenses, #currently_disabled_lines, #custom_severity, #default_severity, #disable_uncorrectable, #enabled_line?, #file_name_matches_any?, #find_message, #find_severity, #range_for_original, #range_from_node_or_range,
#reset_investigation

Actually private methods.

#use_corrector

::RuboCop::Cop::AutocorrectLogic - Included

::RuboCop::Cop::IgnoredNode - Included

Constructor Details

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

Instance Method Details

#autocorrect(corrector, range) (private)

[ GitHub ]

  
# File 'lib/rubocop/cop/layout/space_around_equals_in_parameter_default.rb', line 67

def autocorrect(corrector, range)
  m = range.source.match(/=\s*(\S+)/)
  rest = m ? m.captures[0] : ''
  replacement = style == :space ? ' = ' : '='

  corrector.replace(range, replacement + rest)
end

#check_optarg(arg, equals, value) (private)

[ GitHub ]

  
# File 'lib/rubocop/cop/layout/space_around_equals_in_parameter_default.rb', line 46

def check_optarg(arg, equals, value)
  space_on_both_sides = space_on_both_sides?(arg, equals)
  no_surrounding_space = no_surrounding_space?(arg, equals)

  if (style == :space && space_on_both_sides) ||
     (style == :no_space && no_surrounding_space)
    correct_style_detected
  else
    incorrect_style_detected(arg, value)
  end
end

#incorrect_style_detected(arg, value) (private)

[ GitHub ]

  
# File 'lib/rubocop/cop/layout/space_around_equals_in_parameter_default.rb', line 58

def incorrect_style_detected(arg, value)
  range = range_between(arg.end_pos, value.begin_pos)

  add_offense(range) do |corrector|
    autocorrect(corrector, range)
    opposite_style_detected
  end
end

#message(_node) (private)

[ GitHub ]

  
# File 'lib/rubocop/cop/layout/space_around_equals_in_parameter_default.rb', line 83

def message(_node)
  format(MSG, type: style == :space ? 'missing' : 'detected')
end

#no_surrounding_space?(arg, equals) ⇒ Boolean (private)

[ GitHub ]

  
# File 'lib/rubocop/cop/layout/space_around_equals_in_parameter_default.rb', line 79

def no_surrounding_space?(arg, equals)
  !arg.space_after? && !equals.space_after?
end

#on_optarg(node)

[ GitHub ]

  
# File 'lib/rubocop/cop/layout/space_around_equals_in_parameter_default.rb', line 38

def on_optarg(node)
  tokens = processed_source.tokens_within(node)
  arg, equals, value = tokens.take(3)
  check_optarg(arg, equals, value)
end

#space_on_both_sides?(arg, equals) ⇒ Boolean (private)

[ GitHub ]

  
# File 'lib/rubocop/cop/layout/space_around_equals_in_parameter_default.rb', line 75

def space_on_both_sides?(arg, equals)
  arg.space_after? && equals.space_after?
end