[Fix #184] Fix Node#parent_module_name for sclass nodes.

rubocop · Aug 10, 2021 · 24a1a0d · 24a1a0d
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diff --git a/changelog/fix_fix_184_fix_nodeparent_module_name_for.md b/changelog/fix_fix_184_fix_nodeparent_module_name_for.md
@@ -0,0 +1 @@
+* [#197](https://github.com/rubocop-hq/rubocop-ast/pull/197): [Fix #184] Fix `Node#parent_module_name` for `sclass` nodes. ([@dvandersluis][])
diff --git a/lib/rubocop/ast/node.rb b/lib/rubocop/ast/node.rb
@@ -317,7 +317,11 @@ def parent_module_name
         # returns nil if answer cannot be determined
         ancestors = each_ancestor(:class, :module, :sclass, :casgn, :block)
         result    = ancestors.map do |ancestor|
-          parent_module_name_part(ancestor) { |full_name| return full_name }
+          parent_module_name_part(ancestor) do |full_name|
+            return nil unless full_name
+
+            full_name
+          end
         end.compact.reverse.join('::')
         result.empty? ? 'Object' : result
       end