def p_foo_stmt(p):
    "foo_stmt : expr OROR expr SEMI"
    expr1 = p[1][1][0]
    expr2 = p[3][1][0]
    ident = expr1.ret
    args1 = expr1.args
    args2 = expr2.args
    p[0] = node.let(ret=ident,
                    args=node.expr("or", node.expr_list([args1, args2])))