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::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 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, #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

#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