[Swift-devel] Associative array in Swift [GSoC]

[Mihael Hategan]

On Sun, 2011-06-19 at 00:15 +0000, Ben Clifford wrote:
> > Use the size of the array at the time of the append. 
> 
> might introduce non-deterministic behaviour when used with restarts when 
> the index is used later

Fair point.

>  (for example, to determine a filename) as the 
> index is then a race-based random number, I think. That's what I was 
> getting at with my comment about how things were done in the past with 
> restarts: I think that its possible to make restart-proofed identifiers 
> that look something like a combination of the position in the source file 
> combined with an index for any containing code that causes the same source 
> text to be executed multiple times (eg. each time you have a foreach, 
> stick the index onto the end of the identifier; each time you call a 
> function, stick the source position of the call onto the end of the 
> identifier).

So then the index would be the thread index. I think that might work.