lib/rubocop/cop/metrics/block_nesting.rb in rubocop-0.35.1 vs lib/rubocop/cop/metrics/block_nesting.rb in rubocop-0.36.0

@@ -1,6 +1,7 @@
 # encoding: utf-8
+# frozen_string_literal: true
 
 module RuboCop
   module Cop
     module Metrics
       # This cop checks for excessive nesting of conditional and looping
@@ -13,10 +14,10 @@
         include IfNode
 
         NESTING_BLOCKS = [
           :case, :if, :while, :while_post,
           :until, :until_post, :for, :resbody
-        ]
+        ].freeze
 
         def investigate(processed_source)
           return unless processed_source.ast
           max = cop_config['Max']
           check_nesting_level(processed_source.ast, max, 0)