Class: RuboCop::Cop::Naming::UncommunicativeBlockParamName

Inherits:
Cop
  • Object
show all
Includes:
UncommunicativeName
Defined in:
lib/rubocop/cop/naming/uncommunicative_block_param_name.rb

Overview

This cop checks block parameter names for how descriptive they are. It is highly configurable.

The MinNameLength config option takes an integer. It represents the minimum amount of characters the name must be. Its default is 1. The AllowNamesEndingInNumbers config option takes a boolean. When set to false, this cop will register offenses for names ending with numbers. Its default is false. The AllowedNames config option takes an array of whitelisted names that will never register an offense. The ForbiddenNames config option takes an array of blacklisted names that will always register an offense.

Examples:

# bad
bar do |varOne, varTwo|
  varOne + varTwo
end

# With `AllowNamesEndingInNumbers` set to false
foo { |num1, num2| num1 * num2 }

# With `MinParamNameLength` set to number greater than 1
baz { |a, b, c| do_stuff(a, b, c) }

# good
bar do |thud, fred|
  thud + fred
end

foo { |speed, distance| speed * distance }

baz { |age, height, gender| do_stuff(age, height, gender) }

Constant Summary

Constants included from UncommunicativeName

UncommunicativeName::CASE_MSG, UncommunicativeName::FORBIDDEN_MSG, UncommunicativeName::LENGTH_MSG, UncommunicativeName::NUM_MSG

Constants included from Util

Util::LITERAL_REGEX

Instance Attribute Summary

Attributes inherited from Cop

#config, #corrections, #offenses, #processed_source

Instance Method Summary collapse

Methods included from UncommunicativeName

#check

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, #disable_uncorrectable, #duplicate_location?, #excluded_file?, #find_location, #highlights, inherited, #initialize, #join_force?, lint?, match?, #message, #messages, #parse, qualified_cop_name, #reason_to_not_correct, #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?, #correctable?, #disable_offense, #disable_uncorrectable?, #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, parentheses?, same_line?, to_string_literal, to_supported_styles, tokens, trim_string_interporation_escape_character

Methods included from PathUtil

absolute?, chdir, hidden_dir?, hidden_file_in_not_hidden_dir?, match_path?, pwd, relative_path, reset_pwd, smart_path

Constructor Details

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

Instance Method Details

#on_block(node) ⇒ Object 



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# File 'lib/rubocop/cop/naming/uncommunicative_block_param_name.rb', line 41

def on_block(node)
  return unless node.arguments?

  check(node, node.arguments)
end