Garbage collection

[kinke]

On Saturday, 27 June 2020 at 15:27:34 UTC, Stanislav Blinov wrote:
> On Saturday, 27 June 2020 at 14:12:09 UTC, kinke wrote:
>
>> Note that I explicitly clear the `str` slice before 
>> GC.collect(), so that the stack shouldn't contain any refs to 
>> the fat string anymore.
>
> Hrm... What happens if you call collect() twice?

Nothing changes, even when collecting 5 times at the end of each 
iteration. In the filed testcase, I've extracted the stack ref to 
a dedicated function, so that there really shouldn't be any refs 
on the stack (this is unoptimized code after all...).