The expression used to get the value to control

Property definitions

	# The expression used to get the value to control
	var n_expr: AExpr is writable, noinit

src/parser/parser_nodes.nit:2076,2--2077,38

	redef fun n_expr=(node)
	do
		_n_expr = node
		node.parent = self
	end

src/parser/parser_prod.nit:3464,2--3468,4