Subversion Repositories openrisc

// $G $D/$F.go && $L $F.$A && ./$A.out

// Copyright 2009 The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

package main

type Item interface {

        Print() string

}

type ListItem struct {

        item Item

        next *ListItem

}

type List struct {

        head *ListItem

}

func (list *List) Init() {

        list.head = nil

}

func (list *List) Insert(i Item) {

        item := new(ListItem)

        item.item = i

        item.next = list.head

        list.head = item

}

func (list *List) Print() string {

        r := ""

        i := list.head

        for i != nil {

                r += i.item.Print()

                i = i.next

        }

        return r

}

// Something to put in a list

type Integer struct {

        val int

}

func (this *Integer) Init(i int) *Integer {

        this.val = i

        return this

}

func (this *Integer) Print() string {

        return string(this.val + '0')

}

func main() {

        list := new(List)

        list.Init()

        for i := 0; i < 10; i = i + 1 {

                integer := new(Integer)

                integer.Init(i)

                list.Insert(integer)

        }

        r := list.Print()

        if r != "9876543210" {

                panic(r)

        }

}