On Saturday, March 17, 2018 at 1:54:17 AM UTC-4, T L wrote:
>
>
>
> On Friday, March 16, 2018 at 3:31:23 PM UTC-4, Axel Wagner wrote:
>>
>>
>>
>> On Fri, Mar 16, 2018 at 8:20 PM, T L <[email protected]> wrote:
>>
>>>
>>>
>>> On Friday, March 16, 2018 at 2:57:48 PM UTC-4, Jan Mercl wrote:
>>>>
>>>> On Fri, Mar 16, 2018 at 7:40 PM T L <[email protected]> wrote:
>>>>
>>>>
>>>> > I feel the second append call should be also valid.
>>>>
>>>> Works as intended: T is not struct{}
>>>>
>>>> If desired, it can become that: https://play.golang.org/p/nY-BB3t0IAw
>>>>
>>>>
>>>> --
>>>>
>>>> -j
>>>>
>>>
>>> yes, alias works.
>>>
>>> Just realize that this is not a "append" specified question.
>>> I feel the following one should be also valid.
>>>
>>
>> This is the same question of why you can't convert `[]int` to
>> `[]interface{}` - it's a costly operation and Go tends to not hide
>> expensive operations from you.
>>
>
> Yes. But I think there is a little specialty here.
> It is a problem of which viewpoint is right.
> 1. fmt.Println(1, 2, 3) is a shorthand of fmt.Println([]interface{1, 2,
> 3}...)
> 2. fmt.Println(aBlankInterfaceSlice...) is a shorthand of
> fmt.Println(aBlankInterfaceSlice[0], aBlankInterfaceSlice[1], ...,
> aBlankInterfaceSlice[N])
>
Go spec does imply the first viewpoint is right.
>
>
>>
>>
>>>
>>> package main
>>>
>>> import "fmt"
>>>
>>> func main() {
>>> s := []int{1, 2, 3}
>>> fmt.Println(s...)
>>> }
>>>
>>>
>>>
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>>
>>
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