[Fix rubocop#12875] Fix false positive for `Style/ArgumentsForwarding…

…` when argument is used inside a block.

changelog/fix_fix_false_positive_for_style_arguments_forwarding.md

@@ -0,0 +1 @@
+* [#12875](https://github.com/rubocop/rubocop/issues/12875): Fix false positive for `Style/ArgumentsForwarding` when argument is used inside a block. ([@dvandersluis][])

lib/rubocop/cop/style/arguments_forwarding.rb

@@ -214,6 +214,7 @@ def add_forward_all_offenses(node, send_classifications, forwardable_args)
         # rubocop:disable Metrics/AbcSize, Metrics/MethodLength
         def add_post_ruby_32_offenses(def_node, send_classifications, forwardable_args)
           return unless use_anonymous_forwarding?
+          return if send_inside_block?(send_classifications)
 
           rest_arg, kwrest_arg, block_arg = *forwardable_args
 
@@ -356,6 +357,12 @@ def use_anonymous_forwarding?
           cop_config.fetch('UseAnonymousForwarding', false)
         end
 
+        def send_inside_block?(send_classifications)
+          send_classifications.any? do |send_node, *|
+            send_node.each_ancestor(:block, :numblock).any?
+          end
+        end
+
         def add_parens_if_missing(node, corrector)
           return if parentheses?(node)
           return if node.send_type? && node.method?(:[])

spec/rubocop/cop/style/arguments_forwarding_spec.rb

@@ -2508,6 +2508,21 @@ def foo(*args, &block)
       RUBY
     end
 
+    context 'UseAnonymousForwarding: true' do
+      let(:cop_config) { { 'UseAnonymousForwarding' => true } }
+
+      it 'does not register an offense when a forwarded argument is used within a block' do
+        expect_no_offenses(<<~RUBY)
+          def foo(*args)
+            bar(*args)
+            baz do |x|
+              x.foo(*args)
+            end
+          end
+        RUBY
+      end
+    end
+
     context 'UseAnonymousForwarding: false' do
       let(:cop_config) { { 'UseAnonymousForwarding' => false } }