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Class: RuboCop::Cop::Style::StringLiteralsInInterpolation

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:
self, ::RuboCop::Cop::StringHelp, ::RuboCop::Cop::StringLiteralsHelp, ::RuboCop::Cop::ConfigurableEnforcedStyle, ::RuboCop::Cop::Base, ::RuboCop::Cop::AutocorrectLogic, ::RuboCop::Cop::IgnoredNode, ::RuboCop::Util, RuboCop::AST::Sexp
Inherits: RuboCop::Cop::Base
Defined in: lib/rubocop/cop/style/string_literals_in_interpolation.rb

Overview

Checks that quotes inside string, symbol, and regexp interpolations match the configured preference.

Examples:

EnforcedStyle: single_quotes (default)

# bad
string = "Tests #{success ? "PASS" : "FAIL"}"
symbol = :"Tests #{success ? "PASS" : "FAIL"}"
heredoc = <<~TEXT
  Tests #{success ? "PASS" : "FAIL"}
TEXT
regexp = /Tests #{success ? "PASS" : "FAIL"}/

# good
string = "Tests #{success ? 'PASS' : 'FAIL'}"
symbol = :"Tests #{success ? 'PASS' : 'FAIL'}"
heredoc = <<~TEXT
  Tests #{success ? 'PASS' : 'FAIL'}
TEXT
regexp = /Tests #{success ? 'PASS' : 'FAIL'}/

EnforcedStyle: double_quotes

# bad
string = "Tests #{success ? 'PASS' : 'FAIL'}"
symbol = :"Tests #{success ? 'PASS' : 'FAIL'}"
heredoc = <<~TEXT
  Tests #{success ? 'PASS' : 'FAIL'}
TEXT
regexp = /Tests #{success ? 'PASS' : 'FAIL'}/

# good
string = "Tests #{success ? "PASS" : "FAIL"}"
symbol = :"Tests #{success ? "PASS" : "FAIL"}"
heredoc = <<~TEXT
  Tests #{success ? "PASS" : "FAIL"}
TEXT
regexp = /Tests #{success ? "PASS" : "FAIL"}/

Constant Summary

::RuboCop::Cop::Base - Inherited

EMPTY_OFFENSES, RESTRICT_ON_SEND

::RuboCop::Cop::ConfigurableEnforcedStyle - Included

SYMBOL_TO_STRING_CACHE

Class Attribute Summary

::RuboCop::Cop::AutoCorrector - Extended

support_autocorrect?

::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 a 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

::RuboCop::Cop::StringLiteralsHelp - Included

#enforce_double_quotes?

::RuboCop::Cop::ConfigurableEnforcedStyle - Included

#detected_style, #detected_style=, #no_acceptable_style?, #style_configured?

::RuboCop::Cop::Base - Inherited

#active_support_extensions_enabled?, #always_autocorrect?, #config, #config_to_allow_offenses, #config_to_allow_offenses=, #contextual_autocorrect?, #processed_source, #string_literals_frozen_by_default?, #target_satisfies_all_gem_version_requirements?

::RuboCop::Cop::AutocorrectLogic - Included

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #autocorrect_with_disable_uncorrectable?, #correctable?, #disable_uncorrectable?, #safe_autocorrect?

Instance Method Summary

::RuboCop::Cop::StringHelp - Included

#on_regexp, #on_str, #inside_interpolation?

::RuboCop::Cop::StringLiteralsHelp - Included

#preferred_string_literal, #string_literals_config, #wrong_quotes?

::RuboCop::Cop::ConfigurableEnforcedStyle - Included

#alternative_style, #alternative_styles, #ambiguous_style_detected,
#conflicting_styles_detected

Alias for ConfigurableEnforcedStyle#no_acceptable_style!.
#correct_style_detected, #no_acceptable_style!, #opposite_style_detected, #style, #style_detected, #style_parameter_name, #supported_styles, #unexpected_style_detected,
#unrecognized_style_detected

Alias for ConfigurableEnforcedStyle#no_acceptable_style!.

::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_gem_version

Returns a gems locked versions (i.e.
#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

#disable_offense, #disable_offense_at_end_of_line, #disable_offense_before_and_after, #disable_offense_with_eol_or_surround_comment, #heredoc_range, #max_line_length, #multiline_ranges, #multiline_string?,
#range_by_lines

Expand the given range to include all of any lines it covers.
#range_of_first_line, #range_overlaps_offense?, #string_continuation?, #surrounding_heredoc?, #surrounding_percent_array?

::RuboCop::Cop::IgnoredNode - Included

#ignore_node, #ignored_node?, #part_of_ignored_node?, #ignored_nodes

Constructor Details

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

Instance Method Details

#autocorrect(corrector, node)

[ GitHub ] 

  


# File 'lib/rubocop/cop/style/string_literals_in_interpolation.rb', line 48



def autocorrect(corrector, node)
  StringLiteralCorrector.correct(corrector, node, style)
end


  








  

    #message(_node)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/style/string_literals_in_interpolation.rb', line 59



def message(_node)
  # single_quotes -> single-quoted
  kind = style.to_s.sub(/_(.*)s/, '-\1d')

  "Prefer #{kind} strings inside interpolations."
end


  








  

    #offense?(node)  ⇒ Boolean  (private)
  



  

    
  





  


  [ GitHub ]


  

  


# File 'lib/rubocop/cop/style/string_literals_in_interpolation.rb', line 66



def offense?(node)
  # If it's not a string within an interpolation, then it's not an
  # offense for this cop.
  return false unless inside_interpolation?(node)

  wrong_quotes?(node)
end


  








  

    #on_regexp(node)  
  



  

    


Cop classes that include the StringHelp module usually ignore regexp
nodes. Not so for this cop, which is why we override the on_regexp
definition with an empty one.



  



  [ GitHub ]


  

  


# File 'lib/rubocop/cop/style/string_literals_in_interpolation.rb', line 55



def on_regexp(node); end