Class: RuboCop::Cop::Lint::InterpolationCheck

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Defined in:
lib/rubocop/cop/lint/interpolation_check.rb

Overview

Checks for interpolation in a single quoted string.

Examples:


# bad
foo = 'something with #{interpolation} inside'

# good
foo = "something with #{interpolation} inside"

Constant Summary collapse

MSG = 
'Interpolation in single quoted string detected. ' \
'Use double quoted strings if you need interpolation.'

Constants inherited from Base

Base::RESTRICT_ON_SEND

Instance Attribute Summary

Attributes inherited from Base

#config, #processed_source, #project_index

Instance Method Summary collapse

Methods included from AutoCorrector

support_autocorrect?

Methods inherited from Base

#active_support_extensions_enabled?, #add_global_offense, #add_offense, #always_autocorrect?, autocorrect_incompatible_with, badge, #begin_investigation, #callbacks_needed, callbacks_needed, #config_to_allow_offenses, #config_to_allow_offenses=, #contextual_autocorrect?, #cop_config, cop_name, #cop_name, department, documentation_url, exclude_from_registry, #excluded_file?, #external_dependency_checksum, inherited, #initialize, #inspect, joining_forces, lint?, match?, #message, #offenses, #on_investigation_end, #on_new_investigation, #on_other_file, #parse, #parser_engine, #ready, #relevant_file?, requires_gem, #string_literals_frozen_by_default?, support_autocorrect?, support_multiple_source?, #target_gem_version, #target_rails_version, #target_ruby_version

Methods included from ExcludeLimit

cop_dir_for, #exclude_limit, read_limits

Methods included from AutocorrectLogic

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

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

silence_warnings

Constructor Details

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

Instance Method Details

#on_dstr(node) ⇒ Object

A multiline single-quoted string is parsed as a ‘dstr` of `str` segments, so it is not covered by `on_str`. Inspect single-quoted `dstr`s here; double-quoted interpolation is also a `dstr`, hence the delimiter check.



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# File 'lib/rubocop/cop/lint/interpolation_check.rb', line 34

def on_dstr(node)
  # A heredoc is also a `dstr`, but its `loc` is a `Parser::Source::Map::Heredoc`
  # with no `begin`, so bail before touching it.
  return if heredoc?(node)

  check(node) if node.loc.begin&.source == "'"
end

#on_str(node) ⇒ Object 



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# File 'lib/rubocop/cop/lint/interpolation_check.rb', line 27

def on_str(node)
  check(node)
end