Use a factory method to eliminate "results as hash" check

lib/sqlite3/database.rb

@@ -224,7 +224,7 @@ def execute sql, bind_vars = [], *args, &block
 
       prepare(sql) do |stmt|
         stmt.bind_params(bind_vars)
-        stmt = ResultSet.new self, stmt
+        stmt = build_result_set stmt
 
         if block
           stmt.each do |row|
@@ -746,6 +746,17 @@ def translate_from_db types, row
       @type_translator.call types, row
     end
 
+    # Given a statement, return a result set.
+    # This is not intended for general consumption
+    # :nodoc:
+    def build_result_set stmt
+      if results_as_hash
+        HashResultSet.new(self, stmt)
+      else
+        ResultSet.new(self, stmt)
+      end
+    end
+
     private
 
     NULL_TRANSLATOR = lambda { |_, row| row }

lib/sqlite3/resultset.rb

@@ -92,10 +92,6 @@ def eof?
     # For hashes, the column names are the keys of the hash, and the column
     # types are accessible via the +types+ property.
     def next
-      if @db.results_as_hash
-        return next_hash
-      end
-
       row = @stmt.step
       return nil if @stmt.done?
 
@@ -175,4 +171,8 @@ def next_hash
       row
     end
   end
+
+  class HashResultSet < ResultSet # :nodoc:
+    alias :next :next_hash
+  end
 end

lib/sqlite3/statement.rb

@@ -79,12 +79,12 @@ def execute(*bind_vars)
       reset! if active? || done?
 
       bind_params(*bind_vars) unless bind_vars.empty?
-      @results = ResultSet.new(@connection, self)
+      results = @connection.build_result_set self
 
       step if column_count == 0
 
-      yield @results if block_given?
-      @results
+      yield results if block_given?
+      results
     end
 
     # Execute the statement. If no block was given, this returns an array of

test/test_integration_resultset.rb

@@ -97,6 +97,7 @@ def test_real_translation
 
   def test_next_results_as_hash
     @db.results_as_hash = true
+    @result = @stmt.execute
     @result.reset(1)
     hash = @result.next
     assert_equal({"a" => 1, "b" => "foo"},