DIP 1027--String Interpolation--Final Review Discussion Thread

[Tove]

On Sunday, 2 February 2020 at 16:10:49 UTC, MoonlightSentinel 
wrote:
> On Sunday, 2 February 2020 at 15:31:46 UTC, Tove wrote:
>> Implict conversion to string would trigger allocations! This 
>> is not an option, allocations has to be explict. However alias 
>> this to tuple is fine by me.
>
> The GC is usually opt-in. Having this in feature in @gc code 
> would be better than not having it at all.

It's perfectly fine to have a explicit conversion to string, but 
it needs to be clearly visible from the code where all expensive 
operations are.

It's the same design philosophy as with the 'in' operator, you 
shouldn't use 'in' with O(n) algos, because it looks like a 
deceptively cheap operation.