Class: RuboCop::Cop::Lint::Void
- Defined in:
- lib/rubocop/cop/lint/void.rb
Overview
This cop checks for operators, variables, literals, and nonmutating methods used in void context.
Constant Summary collapse
- OP_MSG =
'Operator `%<op>s` used in void context.'
- VAR_MSG =
'Variable `%<var>s` used in void context.'
- LIT_MSG =
'Literal `%<lit>s` used in void context.'
- SELF_MSG =
'`self` used in void context.'
- DEFINED_MSG =
'`%<defined>s` used in void context.'
- NONMUTATING_MSG =
'Method `#%<method>s` used in void context. ' \ 'Did you mean `#%<method>s!`?'
- BINARY_OPERATORS =
%i[* / % + - == === != < > <= >= <=>].freeze
- UNARY_OPERATORS =
%i[[email protected] [email protected] ~ !].freeze
- OPERATORS =
(BINARY_OPERATORS + UNARY_OPERATORS).freeze
- VOID_CONTEXT_TYPES =
%i[def for block].freeze
- NONMUTATING_METHODS =
%i[capitalize chomp chop collect compact delete_prefix delete_suffix downcase encode flatten gsub lstrip map merge next reject reverse rotate rstrip scrub select shuffle slice sort sort_by squeeze strip sub succ swapcase tr tr_s transform_values unicode_normalize uniq upcase].freeze
Constants inherited from Base
Instance Attribute Summary
Attributes inherited from Base
Instance Method Summary collapse
- #on_begin(node) ⇒ Object (also: #on_kwbegin)
- #on_block(node) ⇒ Object
Methods inherited from Base
#add_global_offense, #add_offense, autocorrect_incompatible_with, badge, #callbacks_needed, callbacks_needed, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, #cop_name, cop_name, department, documentation_url, exclude_from_registry, #excluded_file?, #external_dependency_checksum, inherited, #initialize, joining_forces, lint?, match?, #message, #offenses, #on_investigation_end, #on_new_investigation, #on_other_file, #ready, #relevant_file?, support_autocorrect?, support_multiple_source?, #target_rails_version, #target_ruby_version
Methods included from AutocorrectLogic
#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #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
#on_begin(node) ⇒ Object Also known as: on_kwbegin
71 72 73 |
# File 'lib/rubocop/cop/lint/void.rb', line 71 def on_begin(node) check_begin(node) end |
#on_block(node) ⇒ Object
64 65 66 67 68 69 |
# File 'lib/rubocop/cop/lint/void.rb', line 64 def on_block(node) return unless node.body && !node.body.begin_type? return unless in_void_context?(node.body) check_expression(node.body) end |