Class: RuboCop::Cop::Style::TrailingCommaInBlockArgs
- Extended by:
- AutoCorrector
- Defined in:
- lib/rubocop/cop/style/trailing_comma_in_block_args.rb
Overview
This cop checks whether trailing commas in block arguments are required. Blocks with only one argument and a trailing comma require that comma to be present. Blocks with more than one argument never require a trailing comma.
Constant Summary collapse
- MSG =
'Useless trailing comma present in block arguments.'
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/trailing_comma_in_block_args.rb', line 48 def on_block(node) # lambda literal (`->`) never has block arguments. return if node.send_node.lambda_literal? return unless useless_trailing_comma?(node) last_comma_pos = last_comma(node).pos add_offense(last_comma_pos) do |corrector| corrector.replace(last_comma_pos, '') end end |