• Teodor Dutu (22/22) Nov 19 2021 Hi,
• Imperatorn (2/9) Nov 24 2021 👍

Teodor Dutu <teodor.dutu gmail.com> writes:

Hi,

This week I managed to fix the final bugs of the `_d_arrayctor` 
lowering.
In order to remove the call to `__ArrayDtor`, of which I spoke in 
[last week's 
post](https://forum.dlang.org/post/kocccsnqxjailweqcazz forum.dlang.org), I
resorted to declaring the array returned by `_d_arrayctor` inside a union. This
is somewhat unorthodox, but Adam Ruppe [assured
me](https://forum.dlang.org/post/xqgfaicsqlbbekkbzqye forum.dlang.org) that
this is the accepted way of handling array destruction myself.

As a result, this milestone I plan to run a benchmark for testing 
the performance increase when using the new lowering for 
`_d_array{,set}ctor`. I am also looking to finish replacing the 
lowerings to `_d_arrayappendT` and `_d_arrayappendcTX` with 
templates. I started working on this during the previous 
milestone and managed fixed a bug where CTFE did not correctly 
interpret the lowering to `_d_arrayappendcTX`.

After this, if time allows it, I'll move away for a while from 
lowerings involving array manipulation to hooks that manipulate 
somewhat simpler objects, such as `_d_delstruct`, 
`_d_newitem{T,iT,U}` or `_d_newThrowable`. I plan to make this 
shift because I've seen array-based generate some rather 
time-consuming bugs and I hope that by doing so, I'll be able to 
get more work finished and get stuck less.

Thanks,
Teodor

Imperatorn <johan_forsberg_86 hotmail.com> writes:

On Friday, 19 November 2021 at 21:45:46 UTC, Teodor Dutu wrote:
 Hi,

 This week I managed to fix the final bugs of the `_d_arrayctor` 
 lowering.
 In order to remove the call to `__ArrayDtor`, of which I spoke 
 in [last week's 
 post](https://forum.dlang.org/post/kocccsnqxjailweqcazz forum.dlang.org), I
resorted to declaring the array returned by `_d_arrayctor` inside a union. This
is somewhat unorthodox, but Adam Ruppe [assured
me](https://forum.dlang.org/post/xqgfaicsqlbbekkbzqye forum.dlang.org) that
this is the accepted way of handling array destruction myself.

 [...]

👍