[Fix rubocop#9861] Fix error in Layout/HashAlignment with an empty …

…hash literal.
dvandersluis · Jun 9, 2021 · e6c2aa9 · e6c2aa9
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diff --git a/changelog/fix_fix_error_in_layouthashalignment_with_an.md b/changelog/fix_fix_error_in_layouthashalignment_with_an.md
@@ -0,0 +1 @@
+* [#9861](https://github.com/rubocop/rubocop/issues/9861): Fix error in `Layout/HashAlignment` with an empty hash literal. ([@dvandersluis][])
diff --git a/lib/rubocop/cop/layout/hash_alignment.rb b/lib/rubocop/cop/layout/hash_alignment.rb
@@ -218,6 +218,7 @@ def on_hash(node)
 
         def autocorrect_incompatible_with_other_cops?(node)
           enforce_first_argument_with_fixed_indentation? &&
+            node.pairs.any? &&
             node.parent&.call_type? && node.parent.loc.line == node.pairs.first.loc.line
         end
 

diff --git a/spec/rubocop/cop/layout/hash_alignment_spec.rb b/spec/rubocop/cop/layout/hash_alignment_spec.rb
@@ -171,6 +171,12 @@ def example
         }
       RUBY
     end
+
+    it 'does not register an offense for an empty hash literal' do
+      expect_no_offenses(<<~RUBY)
+        foo({})
+      RUBY
+    end
   end
 
   context 'always ignore last argument hash' do