private class ReduceAction657
	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 tkwisanode3 = nodearraylist2
					assert tkwisanode3 isa nullable TKwisa
					var ptypenode4 = nodearraylist4
					assert ptypenode4 isa nullable AType
					var pexprnode1: nullable AIsaExpr = new AIsaExpr.init_aisaexpr(
						pexprnode2,
						tkwisanode3,
						ptypenode4
					)
					node_list = pexprnode1
					p.push(p.go_to(_goto), node_list)
	end
end