Class: RuboCop::Cop::Performance::RedundantSortBlock

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Includes:
SortBlock
Defined in:
lib/rubocop/cop/performance/redundant_sort_block.rb

Overview

Identifies places where sort { |a, b| a <=> b } can be replaced with sort.

Examples:

# bad
array.sort { |a, b| a <=> b }

# good
array.sort

Constant Summary collapse

MSG = 
'Use `sort` without block.'

Instance Method Summary collapse

Instance Method Details

#on_block(node) ⇒ Object

rubocop:disable-next InternalAffairs/ItblockHandler -- it block accepts only a single block parameter.



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# File 'lib/rubocop/cop/performance/redundant_sort_block.rb', line 22

def on_block(node)
  return unless (send, var_a, var_b, body = sort_with_block?(node))

  replaceable_body?(body, var_a, var_b) do
    register_offense(send, node)
  end
end

#on_numblock(node) ⇒ Object 



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# File 'lib/rubocop/cop/performance/redundant_sort_block.rb', line 30

def on_numblock(node)
  return unless (send, arg_count, body = sort_with_numblock?(node))
  return unless arg_count == 2

  replaceable_body?(body, :_1, :_2) do
    register_offense(send, node)
  end
end