Why is there a "new" in Go?

Posted by dystroy on Programmers See other posts from Programmers or by dystroy
Published on 2013-09-04T07:31:19Z Indexed on 2013/11/05 10:11 UTC
Read the original article Hit count: 314

Filed under:
|

I'm still puzzled as why we have new in Go.

When you want to instantiate a struct, you do

t := Thing{}

and, obviously, you can get a pointer to a new instance by doing

t := &Thing{}

But there's also this possibility :

t := new(Thing)

This last one seems a little alien to me. &Thing{} is as clear and concise as new(Thing) and it uses only constructs you often use elsewhere. It's also more extensible as you might change it to &Thing{3} or &Thing{Feets:7}.

In my opinion, having a supplementary keyword is costly, it makes the language more complex and adds to what you must know. And it might mask to newcomers what's behind instantiating a struct.

It also makes one more reserved word.

So what's the reasoning behind new ? Is it something useful ? Should we use it ?

© Programmers or respective owner

Related posts about go

  • Go import error while trying to import web.go package after using goinstall

    as seen on Stack Overflow - Search for 'Stack Overflow'
    With halfdans advice, I was successfully able to use goinstall github.com/hoisie/web.go without any errors after installing git first. However, now when I try to compile the sample code given, go is not finding the web package. I get the error, main.go:4: can't find import: web On this code package… >>> More

  • Go Big or Go Home

    as seen on Oracle Blogs - Search for 'Oracle Blogs'
    The Oracle Develop conference (#oracledevelop10), being co-located for the first time ever with JavaOne in San Francisco, is guaranteed to be the ultimate rush for developers this year. Where else can you go to learn about, interact with, and meet fellow devotees of the entire Oracle Development… >>> More

  • Go Big or Go Home

    as seen on Oracle Blogs - Search for 'Oracle Blogs'
    For those who don’t know, Oracle sponsors a group called “OWL” – Oracle Women’s Leadership - and the purpose of the group is to create local and global opportunities that support, educate and empower current and future women leaders at Oracle. This week, I had the opportunity to attend the Denver… >>> More

  • Go Big or Go Special

    as seen on SQL Team - Search for 'SQL Team'
    Watching Shark Tank tonight and the first presentation was by Mango Mango Preserves and it highlighted an interesting contrast in business trends today and how to capitalize on opportunities.  <Spoiler Alert> Even though every one of the sharks was raving about the product samples they tried… >>> More

  • juju bootstrap fails with a local environment, why?

    as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
    Each time I try to bootstrap juju using a local enviroment it fails starting the juju-db-braiam-local script as follows: $ sudo juju --debug --verbose bootstrap 2013-10-20 02:28:53 INFO juju.provider.local environprovider.go:32 opening environment "local" 2013-10-20 02:28:53 DEBUG juju.provider.local… >>> More

Related posts about instantiation