Class: RuboCop::Cop::Style::EmptyLiteral
- Extended by:
- AutoCorrector
- Includes:
- FrozenStringLiteral, RangeHelp
- Defined in:
- lib/rubocop/cop/style/empty_literal.rb
Overview
Checks for the use of a method, the result of which would be a literal, like an empty array, hash, or string.
Constant Summary collapse
- ARR_MSG =
'Use array literal `[]` instead of `Array.new`.'
- HASH_MSG =
'Use hash literal `{}` instead of `Hash.new`.'
- STR_MSG =
'Use string literal `%<prefer>s` instead of `String.new`.'
- RESTRICT_ON_SEND =
%i[new].freeze
Constants included from FrozenStringLiteral
FrozenStringLiteral::FROZEN_STRING_LITERAL, FrozenStringLiteral::FROZEN_STRING_LITERAL_ENABLED
Instance Attribute Summary
Attributes inherited from Base
Instance Method Summary collapse
- #array_node(node) ⇒ Object
- #array_with_block(node) ⇒ Object
- #hash_node(node) ⇒ Object
- #hash_with_block(node) ⇒ Object
- #on_send(node) ⇒ Object
- #str_node(node) ⇒ Object
Methods included from AutoCorrector
Methods included from FrozenStringLiteral
frozen_string_literal_comment_exists?
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?, support_autocorrect?, support_multiple_source?, #target_rails_version, #target_ruby_version
Methods included from ExcludeLimit
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
Constructor Details
This class inherits a constructor from RuboCop::Cop::Base
Instance Method Details
#array_node(node) ⇒ Object
31 |
# File 'lib/rubocop/cop/style/empty_literal.rb', line 31 def_node_matcher :array_node, '(send (const {nil? cbase} :Array) :new)' |
#array_with_block(node) ⇒ Object
40 |
# File 'lib/rubocop/cop/style/empty_literal.rb', line 40 def_node_matcher :array_with_block, '(block (send (const {nil? cbase} :Array) :new) args _)' |
#hash_node(node) ⇒ Object
34 |
# File 'lib/rubocop/cop/style/empty_literal.rb', line 34 def_node_matcher :hash_node, '(send (const {nil? cbase} :Hash) :new)' |
#hash_with_block(node) ⇒ Object
43 44 45 46 47 48 |
# File 'lib/rubocop/cop/style/empty_literal.rb', line 43 def_node_matcher :hash_with_block, <<~PATTERN { (block (send (const {nil? cbase} :Hash) :new) args _) (numblock (send (const {nil? cbase} :Hash) :new) ...) } PATTERN |
#on_send(node) ⇒ Object
50 51 52 53 54 55 56 |
# File 'lib/rubocop/cop/style/empty_literal.rb', line 50 def on_send(node) return unless ( = (node)) add_offense(node, message: ) do |corrector| corrector.replace(replacement_range(node), correction(node)) end end |
#str_node(node) ⇒ Object
37 |
# File 'lib/rubocop/cop/style/empty_literal.rb', line 37 def_node_matcher :str_node, '(send (const {nil? cbase} :String) :new)' |