DIP1000 observation
Paul Backus
snarwin at gmail.com
Mon Sep 2 13:44:51 UTC 2024
On Monday, 2 September 2024 at 13:15:51 UTC, Richard (Rikki)
Andrew Cattermole wrote:
> The core issue with using DIP1000 is that it is not trying to
> solve escape analysis or owner escape analysis for heap memory.
> It is being misused to try to model heap memory. I do not
> believe that it is fixable, it's simply solving a problem in a
> way that directly negatively affects most code, and it does so
> by not respecting the problem domain or the literature on the
> topic.
As someone who has written a bunch of code using DIP 1000 to try
and model ownership of heap memory, I can confirm that this is
100% correct. The way it's done is by essentially lying to the
compiler, and telling it to treat a pointer to the heap *as
though* it's a pointer to the stack.
It's kind of like template metaprogramming in C++. It's a clever
hack, and the fact that it works at all is kind of impressive.
But we shouldn't *have* to resort to clever hacks like this to
solve simple problems.
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