Fix an error for Style/RedundantEach when using reverse_each.each…

… without a block

changelog/fix_an_error_for_style_redundant_each.md

@@ -0,0 +1 @@
+* [#12780](https://github.com/rubocop/rubocop/issues/12780): Fix an error for `Style/RedundantEach` when using `reverse_each.each` without a block. ([@earlopain][])

lib/rubocop/cop/style/redundant_each.rb

@@ -86,7 +86,7 @@ def redundant_each_method(node)
         def range(node)
           return node.selector unless node.method?(:each)
 
-          if node.parent.call_type?
+          if node.parent&.call_type?
             node.selector.join(node.parent.loc.dot)
           else
             node.loc.dot.join(node.selector)

spec/rubocop/cop/style/redundant_each_spec.rb

@@ -115,6 +115,17 @@
     RUBY
   end
 
+  it 'registers an offense when using `reverse_each.each` without a block' do
+    expect_offense(<<~RUBY)
+      context.reverse_each.each
+                          ^^^^^ Remove redundant `each`.
+    RUBY
+
+    expect_correction(<<~RUBY)
+      context.reverse_each
+    RUBY
+  end
+
   it 'registers an offense when using `reverse_each&.each`' do
     expect_offense(<<~RUBY)
       context.reverse_each&.each { |i| do_something(i) }