[Fix #10180] Fix an error for Style/SelectByRegexp

changelog/fix_an_error_for_style_select_by_regexp.md

@@ -0,0 +1 @@
+* [#10180](https://github.com/rubocop/rubocop/issues/10180): Fix an error for `Style/SelectByRegexp` when using `match?` without a receiver. ([@koic][])

lib/rubocop/cop/style/select_by_regexp.rb

@@ -83,6 +83,7 @@ def on_send(node)
           return if block_node.body.begin_type?
           return if receiver_allowed?(block_node.receiver)
           return unless (regexp_method_send_node = extract_send_node(block_node))
+          return if match_predicate_without_receiver?(regexp_method_send_node)
 
           regexp = find_regexp(regexp_method_send_node)
           register_offense(node, block_node, regexp)
@@ -127,6 +128,10 @@ def find_regexp(node)
             node.receiver
           end
         end
+
+        def match_predicate_without_receiver?(node)
+          node.send_type? && node.method?(:match?) && node.receiver.nil?
+        end
       end
     end
   end

spec/rubocop/cop/style/select_by_regexp_spec.rb

@@ -279,6 +279,12 @@
             array.#{method} { /regexp/.match?(foo(_1)) }
           RUBY
         end
+
+        it 'does not register an offense when using `match?` without a receiver' do
+          expect_no_offenses(<<~RUBY)
+            array.#{method} { |item| match?(item) }
+          RUBY
+        end
       end
     end
   end