Class: RuboCop::Cop::Style::MinMax

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Defined in:
lib/rubocop/cop/style/min_max.rb

Overview

This cop checks for potential uses of `Enumerable#minmax`.

Examples:


# bad
bar = [foo.min, foo.max]
return foo.min, foo.max

# good
bar = foo.minmax
return foo.minmax

Constant Summary collapse

MSG =
'Use `%<receiver>s.minmax` instead of `%<offender>s`.'

Constants inherited from Base

Base::RESTRICT_ON_SEND

Instance Attribute Summary

Attributes inherited from Base

#config, #processed_source

Instance Method Summary collapse

Methods included from AutoCorrector

support_autocorrect?

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?, #offenses, #on_investigation_end, #on_new_investigation, #on_other_file, #parse, #ready, #relevant_file?, support_autocorrect?, support_multiple_source?, #target_rails_version, #target_ruby_version

Methods included from ExcludeLimit

#exclude_limit

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

silence_warnings

Constructor Details

This class inherits a constructor from RuboCop::Cop::Base

Instance Method Details

#on_array(node) ⇒ Object Also known as: on_return


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# File 'lib/rubocop/cop/style/min_max.rb', line 22

def on_array(node)
  min_max_candidate(node) do |receiver|
    offender = offending_range(node)

    add_offense(offender, message: message(offender, receiver)) do |corrector|
      receiver = node.children.first.receiver

      corrector.replace(offending_range(node), "#{receiver.source}.minmax")
    end
  end
end