Class: RuboCop::Cop::Style::NilLambda
Overview
This cop checks for lambdas that always return nil, which can be replaced with an empty lambda instead.
Constant Summary collapse
- MSG =
'Use an empty lambda instead of always returning nil.'
Constants inherited from Base
Instance Attribute Summary
Attributes inherited from Base
Instance Method Summary collapse
Methods included from AutoCorrector
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_block(node) ⇒ Object
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# File 'lib/rubocop/cop/style/nil_lambda.rb', line 35 def on_block(node) return unless node.lambda? return unless nil_return?(node.body) add_offense(node) do |corrector| range = if node.single_line? range_with_surrounding_space(range: node.body.loc.expression) else range_by_whole_lines(node.body.loc.expression, include_final_newline: true) end corrector.remove(range) end end |