Class: RuboCop::Cop::Lint::LiteralInInterpolation

Inherits:

Cop

• Object
• Cop
• RuboCop::Cop::Lint::LiteralInInterpolation

Defined in:

lib/rubocop/cop/lint/literal_in_interpolation.rb

Overview

This cop checks for interpolated literals.

Examples:

"result is #{10}"

Constant Summary

LITERALS =

[:str, :dstr, :int, :float, :array,
:hash, :regexp, :nil, :true, :false]

MSG =

'Literal interpolation detected.'

Constants included from Util

Util::ASGN_NODES, Util::BASIC_LITERALS, Util::EQUALS_ASGN_NODES, Util::OPERATOR_METHODS, Util::PROC_NEW_NODE, Util::SHORTHAND_ASGN_NODES

Instance Attribute Summary

Attributes inherited from Cop

#config, #corrections, #offenses, #processed_source

Instance Method Summary

• #autocorrect(node) ⇒ Object
• #on_dstr(node) ⇒ Object

Methods inherited from Cop

#add_offense, all, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, cop_name, #cop_name, cop_type, #correct, #debug?, #details, #display_cop_names?, #display_style_guide?, #excluded_file?, #extra_details?, inherited, #initialize, #join_force?, lint?, match?, #message, non_rails, qualified_cop_name, rails?, #reference_url, #relevant_file?, #style_guide_url

Methods included from NodePattern::Macros

#def_node_matcher, #def_node_search

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?, block_length, command?, comment_line?, const_name, directions, first_part_of_call_chain, lambda?, lambda_or_proc?, line_range, move_pos, numeric_range_size, on_node, operator?, parentheses?, proc?, range_with_surrounding_comma, range_with_surrounding_space, source_range, strip_quotes, within_node?

Methods included from PathUtil

hidden?, issue_deprecation_warning, match_path?, relative_path

Constructor Details

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

Instance Method Details

#autocorrect(node) ⇒ Object

# File 'lib/rubocop/cop/lint/literal_in_interpolation.rb', line 28

def autocorrect(node)
  expr = node.parent.loc.expression
  value = autocorrected_value(node)
  ->(corrector) { corrector.replace(expr, value) }
end

#on_dstr(node) ⇒ Object

# File 'lib/rubocop/cop/lint/literal_in_interpolation.rb', line 17

def on_dstr(node)
  node.children.select { |n| n.type == :begin }.each do |begin_node|
    final_node = begin_node.children.last
    next unless final_node
    next if special_keyword?(final_node)
    next unless LITERALS.include?(final_node.type)

    add_offense(final_node, :expression)
  end
end