package main

import (
    "github.com/mibes/go-arena/pkg/arena"
)

type Tree struct {
    Left  *Tree
    Right *Tree
}

func main() {
    a := arena.NewArena(Tree{})
    tree := (*Tree)(a.Alloc())
    left := (*Tree)(a.Alloc())
    right := (*Tree)(a.Alloc())

    tree.Right, tree.Left = right, left
    a.Release()
}

package main

import (
    "fmt"
    "github.com/mibes/go-arena/pkg/arena"
)

type User struct {
    firstName string
    lastName  string
    age       int
}

func main() {
    a := arena.NewArena(User{})
    user := (*User)(a.Alloc())
    user.firstName = "Marcel"
    fmt.Printf("%s %s: %d\n", user.firstName, user.lastName, user.age)
    a.Release()
}