The starting quad (`::`)

Property definitions

	# The starting quad (`::`)
	var n_quad: nullable TQuad = null is writable

src/parser/parser_nodes.nit:2993,2--2994,46

	redef fun n_quad=(node)
	do
		_n_quad = node
		if node != null then node.parent = self
	end

src/parser/parser_prod.nit:8076,2--8080,4