Review of std.signal

[ilya-stromberg]

On Thursday, 23 January 2014 at 22:58:08 UTC, Martin Nowak wrote:
> On 01/13/2014 10:16 PM, ilya-stromberg wrote:
>>
>> It's not so good to have array of delegates because you will 
>> have a
>> memory leaks. Delegate has permanent pointer to the object, so 
>> GC will
>> never free it. As alternative, you can delete delegate 
>> manually, but in
>> this case you can have problems with manual memory management.
>>
>> So, array of delegates is possible solution, but only for VERY 
>> simple
>> cases. This module solves problem with memory leaks because it
>> implements weak connections (based on weak reference). It's 
>> easy to use,
>> but VERY difficult to implement.
>
> But weak references should be implemented on GC/druntime level.

Yes, I know. They can be useful for many other purposes. I just 
provide example when `std.signal` better than `array of 
delegates`.