Class: RuboCop::Cop::Lint::PercentSymbolArray

Inherits:
Cop
  • Object
show all
Includes:
PercentLiteral
Defined in:
lib/rubocop/cop/lint/percent_symbol_array.rb

Overview

This cop checks for colons and commas in %i, e.g. ‘%i(:foo, :bar)`

It is more likely that the additional characters are unintended (for example, mistranslating an array of literals to percent string notation) rather than meant to be part of the resulting symbols.

Examples:


# bad

%i(:foo, :bar)

# good

%i(foo bar)

Constant Summary collapse

MSG = 
"Within `%i`/`%I`, ':' and ',' are unnecessary and may be " \
'unwanted in the resulting symbols.'.freeze

Constants included from PercentLiteral

PercentLiteral::PERCENT_LITERAL_TYPES

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 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/lint/percent_symbol_array.rb', line 39

def autocorrect(node)
  lambda do |corrector|
    node.children.each do |child|
      range = child.loc.expression

      corrector.remove_trailing(range, 1) if /,$/ =~ range.source
      corrector.remove_leading(range, 1) if /^:/ =~ range.source
    end
  end
end

#on_array(node) ⇒ Object 



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# File 'lib/rubocop/cop/lint/percent_symbol_array.rb', line 29

def on_array(node)
  process(node, '%i', '%I')
end

#on_percent_literal(node) ⇒ Object 



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# File 'lib/rubocop/cop/lint/percent_symbol_array.rb', line 33

def on_percent_literal(node)
  return unless contains_colons_or_commas?(node)

  add_offense(node)
end