Insert node at beginning of linked list in golang

Write a program which is create and add new node at the beginning of linked list in Go.

Here given of code implementation process.

package main
import "fmt"
/*
    Go program for
    Insert node at beginning of linked list
*/
// Linked list node
type LinkNode struct {
    data int
    next * LinkNode
}
func getLinkNode(data int) * LinkNode {
    var me *LinkNode = &LinkNode {}
    me.data = data
    me.next = nil
    return me
}
type SingleLL struct {
    head * LinkNode
}
func getSingleLL() * SingleLL {
    var me *SingleLL = &SingleLL {}
    me.head = nil
    return me
}
// Adding new node at beginning of linked list
func(this *SingleLL) addNode(data int) {
    // Create new node
    var node * LinkNode = getLinkNode(data)
    // Connect current node to previous head
    node.next = this.head
    this.head = node
}
// Display linked list element
func(this SingleLL) display() {
    if this.head == nil {
        return
    }
    var temp * LinkNode = this.head
    // iterating linked list elements
    for (temp != nil) {
        fmt.Print( temp.data, " → ")
        // Visit to next node
        temp = temp.next
    }
    fmt.Print(" NULL\n")
}
func main() {
    var sll * SingleLL = getSingleLL()
    // Linked list
    // 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → NULL
    sll.addNode(8)
    sll.addNode(7)
    sll.addNode(6)
    sll.addNode(5)
    sll.addNode(4)
    sll.addNode(3)
    sll.addNode(2)
    sll.addNode(1)
    sll.display()
}

 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → NULL

Time complexity of above program is O(1).