[go-nuts] Re: How do you mitigate against nil pointer dereference

[mhhcbon]

Hi,

some simple leads,

Use one line initialization of Person
p := &Person{Attr:&Attribute{}}

Enhance the if conditions statement
    if p.Attr != nil && p.Attr.Age < 10 {
        fmt.Println("Too Young")
    }

Use a Person constructor
func NewPerson() &Person {
    return &Person{Attr:&Attribute{}}
}


I, too, dislike that default values for struct pointer properties is nil.


On Friday, January 13, 2017 at 2:26:12 PM UTC+1, mail...@gmail.com wrote:
>
>
> Hello,
>
> Have been struggling with mitigating against nil pointer deference and i 
> would appreciate if anyone can help
>
> Code 1:   Works file 
> https://play.golang.org/p/lhOh9g5R9l
>
>
> Code 2: Error
> https://play.golang.org/p/pY4F9bK-D9
>
>
> How do you validate Attr was set if its a pointer ? 
>
> Thanks In Advance
> Teety
>

-- 
You received this message because you are subscribed to the Google Groups 
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to golang-nuts+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.