Lint: Style/PerlBackrefs

.rubocop_todo.yml

@@ -83,9 +83,3 @@ Style/DocumentDynamicEvalDefinition:
     - 'lib/faraday/connection.rb'
     - 'lib/faraday/options.rb'
 
-# Offense count: 2
-# Cop supports --auto-correct.
-Style/PerlBackrefs:
-  Exclude:
-    - 'lib/faraday/encoders/nested_params_encoder.rb'
-    - 'spec/support/fake_safe_buffer.rb'

lib/faraday/encoders/nested_params_encoder.rb

@@ -102,7 +102,7 @@ module Faraday
       subkeys = key.scan(SUBKEYS_REGEX)
       subkeys.each_with_index do |subkey, i|
         is_array = subkey =~ /[\[\]]+\Z/
-        subkey = $` if is_array
+        subkey = Regexp.last_match.pre_match if is_array
         last_subkey = i == subkeys.length - 1
 
         context = prepare_context(context, subkey, is_array, last_subkey)

spec/support/fake_safe_buffer.rb

@@ -8,7 +8,7 @@ FakeSafeBuffer = Struct.new(:string) do
 
   def gsub(regex)
     string.gsub(regex) do
-      match, = $&, '' =~ /a/
+      match, = Regexp.last_match(0), '' =~ /a/
       yield(match)
     end
   end