Prism::Translation::RubyParser::Compiler#visit_interpolated_parts

# File tmp/rubies/ruby-4.0.0/lib/prism/translation/ruby_parser.rb, line 1062
        def visit_interpolated_parts(parts)
  visited = []

  parts.each do |part|
    result = visit(part)

    if result[0] == :evstr && result[1]
      if result[1][0] == :str
        visited << result[1]
      elsif result[1][0] == :dstr
        visited.concat(result[1][1..-1])
      else
        visited << result
      end
      visited << :space
    elsif result[0] == :dstr
      if !visited.empty? && part.parts[0].is_a?(StringNode)
        # If we are in the middle of an implicitly concatenated string,
        # we should not have a bare string as the first part. In this
        # case we need to visit just that first part and then we can
        # push the rest of the parts onto the visited array.
        result[1] = visit(part.parts[0])
      end
      visited.concat(result[1..-1])
    else
      visited << result
    end
  end

  state = :beginning #: :beginning | :string_content | :interpolated_content
  results = []

  visited.each_with_index do |result, index|
    case state
    when :beginning
      if result.is_a?(String)
        results << result
        state = :string_content
      elsif result.is_a?(Array) && result[0] == :str
        results << result[1]
        state = :string_content
      else
        results << ""
        results << result
        state = :interpolated_content
      end
    when :string_content
      if result == :space
        # continue
      elsif result.is_a?(String)
        results[0] = "#{results[0]}#{result}"
      elsif result.is_a?(Array) && result[0] == :str
        results[0] = "#{results[0]}#{result[1]}"
      else
        results << result
        state = :interpolated_content
      end
    when :interpolated_content
      if result == :space
        # continue
      elsif visited[index - 1] != :space && result.is_a?(Array) && result[0] == :str && results[-1][0] == :str && (results[-1].line_max == result.line)
        results[-1][1] = "#{results[-1][1]}#{result[1]}"
        results[-1].line_max = result.line_max
      else
        results << result
      end
    end
  end

  results
end