On 01/09/2018 04:45 PM, Ian Lance Taylor wrote:
> On Tue, Jan 9, 2018 at 1:02 PM, Jim Bishopp
> <james.bish...@gmail.com> wrote:
>>
>> Has there ever been a discussion about allowing new identifiers and
>> selectors in short variable declarations?
>>
>> var a struct { x int } b, a.x := 1, 2
>>
>> ERROR: expected identifier on left side of :=
>
> That idea appears in https://golang.org/issue/377, along with many
> others.
>
I had the same question myself. I settled on the idea that that is a
short declaration -- not an assignment -- though it does re-declare
existing variables (of the same type!). That behaves like assignment
but I think it is still declaration.
But its behavior makes sense if you consider that you can't declare or
re-declare struct member.
-ayan
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