private class ReduceAction663
	super ReduceAction
	redef fun action(p: Parser)
	do
					var node_list: nullable Object = null
					var nodearraylist4 = p.pop
					var nodearraylist3 = p.pop
					var nodearraylist2 = p.pop
					var nodearraylist1 = p.pop
					var pexprnode2 = nodearraylist1
					assert pexprnode2 isa nullable AExpr
					var tampnode3 = nodearraylist2
					assert tampnode3 isa nullable TAmp
					var pexprnode4 = nodearraylist4
					assert pexprnode4 isa nullable AExpr
					var pexprnode1: nullable AAmpExpr = new AAmpExpr.init_aampexpr(
						pexprnode2,
						tampnode3,
						pexprnode4
					)
					node_list = pexprnode1
					p.push(p.go_to(_goto), node_list)
	end
end