Class: RuboCop::Cop::Style::SingleLineBlockParams
- Defined in:
- lib/rubocop/cop/style/single_line_block_params.rb
Overview
This cop checks whether the block parameters of a single-line method accepting a block match the names specified via configuration.
For instance one can configure ‘reduce`(`inject`) to use |a, e| as parameters.
Constant Summary
Constants included from Util
Util::ASGN_NODES, Util::BYTE_ORDER_MARK, 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 inherited from Cop
#add_offense, all, 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?, #messages, non_rails, #parse, qualified_cop_name, #relevant_file?, #target_ruby_version
Methods included from AST::Sexp
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?, block_length, comment_line?, compatible_external_encoding_for?, directions, double_quotes_acceptable?, double_quotes_required?, effective_column, ends_its_line?, escape_string, first_part_of_call_chain, hard_to_type?, interpret_string_escapes, line_distance, line_range, move_pos, needs_escaping?, numeric_range_size, on_node, operator?, parentheses?, parenthesized_call?, preceed?, range_between, range_with_surrounding_comma, range_with_surrounding_space, same_line?, source_range, strip_quotes, stripped_source_upto, to_string_literal, to_supported_styles, to_symbol_literal, within_node?
Methods included from PathUtil
absolute?, match_path?, relative_path
Constructor Details
This class inherits a constructor from RuboCop::Cop::Cop
Instance Method Details
#on_block(node) ⇒ Object
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 |
# File 'lib/rubocop/cop/style/single_line_block_params.rb', line 12 def on_block(node) # we care only for single line blocks return unless block_length(node).zero? method_node, args_node, _body_node = *node receiver, method_name, _method_args = *method_node # discard other scenarios return unless receiver return unless method_names.include?(method_name) args = *args_node return if args.empty? # discard cases with argument destructuring return true unless args.all?(&:arg_type?) return if args_match?(method_name, args) add_offense(args_node, :expression, (method_name)) end |