Class: RuboCop::Cop::Style::RedundantException
- Defined in:
- lib/rubocop/cop/style/redundant_exception.rb
Overview
This cop checks for RuntimeError as the argument of raise/fail.
Currently it checks for code like this:
Constant Summary collapse
- MSG =
'Redundant `RuntimeError` argument can be removed.'
- TARGET_NODE =
s(:const, nil, :RuntimeError)
Constants included from Util
Util::ASGN_NODES, Util::EQUALS_ASGN_NODES, Util::OPERATOR_METHODS, Util::PROC_NEW_NODE, Util::SHORTHAND_ASGN_NODES
Instance Attribute Summary
Attributes inherited from Cop
#config, #corrections, #offenses, #processed_source
Instance Method Summary collapse
-
#autocorrect(node) ⇒ Object
switch
raise RuntimeError, 'message'
toraise 'message'
. - #on_send(node) ⇒ Object
Methods inherited from Cop
#add_offense, all, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, cop_name, #cop_name, cop_name_with_namespace, cop_type, #correct, #debug?, #display_cop_names?, #display_style_guide?, inherited, #initialize, #join_force?, lint?, #message, non_rails, qualified_cop_name, rails?, #relevant_file?, #style_guide_url
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, command?, comment_line?, const_name, directions, first_part_of_call_chain, lambda?, lambda_or_proc?, line_range, move_pos, numeric_range_size, on_node, operator?, parentheses?, proc?, range_with_surrounding_comma, range_with_surrounding_space, source_range, strip_quotes, within_node?
Methods included from PathUtil
hidden?, issue_deprecation_warning, match_path?, relative_path
Constructor Details
This class inherits a constructor from RuboCop::Cop::Cop
Instance Method Details
#autocorrect(node) ⇒ Object
switch raise RuntimeError, 'message'
to raise 'message'
31 32 33 34 35 36 37 38 39 40 |
# File 'lib/rubocop/cop/style/redundant_exception.rb', line 31 def autocorrect(node) @corrections << lambda do |corrector| start_range = node.loc.expression.begin no_comma = range_with_surrounding_comma(node.loc.expression.end, :right) comma_range = start_range.join(no_comma) final_range = range_with_surrounding_space(comma_range, :right) corrector.replace(final_range, '') end end |
#on_send(node) ⇒ Object
18 19 20 21 22 23 24 25 26 27 28 |
# File 'lib/rubocop/cop/style/redundant_exception.rb', line 18 def on_send(node) return unless command?(:raise, node) || command?(:fail, node) _receiver, _selector, *args = *node return unless args.size == 2 first_arg, = *args add_offense(first_arg, :expression) if first_arg == TARGET_NODE end |