private class ReduceAction680
	super ReduceAction
	redef fun action(p: Parser)
	do
					var node_list: nullable Object = null
					var nodearraylist3 = p.pop
					var nodearraylist2 = p.pop
					var nodearraylist1 = p.pop
					var tkwoncenode2 = nodearraylist1
					assert tkwoncenode2 isa nullable TKwonce
					var pexprnode3 = nodearraylist3
					assert pexprnode3 isa nullable AExpr
					var pexprnode1: nullable AOnceExpr = new AOnceExpr.init_aonceexpr(
						tkwoncenode2,
						pexprnode3
					)
					node_list = pexprnode1
					p.push(p.go_to(_goto), node_list)
	end
end