# Compute the real location of a node on the `ast` based on `mdoc.location`
	#
	# The result is basically: ast_location + markdown location of the piece + mdoc.location
	#
	# The fun is that a single docunit can be made of various pieces of code blocks.
	fun real_location(ast_location: Location): Location
	do
		var mdoc = self.mdoc

		var res = new Location(mdoc.location.file,
			lines[ast_location.line_start-1],
			lines[ast_location.line_end-1],
			columns[ast_location.line_start-1] + ast_location.column_start,
			columns[ast_location.line_end-1] + ast_location.column_end)

		return res
	end