struct Table {
pub mut:
    name string
}

type MyFn = fn (zzzz Table)

fn (mut t Table) rename() {
    t.name = 'abc'
}

fn yyy(t Table) {
    println(t.name)
}

fn xxx(mut mytable Table) {
    mytable.rename()
    println(mytable.name)
}

fn sum(myfn MyFn) {
    mut t := Table{}
    myfn(t)
}

fn main() {
    sum(fn (mut t Table) {
        t.rename()
        println(t.name)
    })
    sum(xxx)
    sum(yyy)
}