'unwrap envy' and exceptions

[IGotD-]

On Sunday, 12 September 2021 at 01:50:37 UTC, H. S. Teoh wrote:
>
> Whatever replaces exceptions better be darned good, otherwise I 
> will be very unhappy.  Explicit exception handling has its 
> place, but in other cases it just uglifies code for no good 
> reason.  I don't really buy the performance argument: if your 
> profiler pinpoints try/catch blocks as the bottleneck, it's not 
> hard to refactor it to use error codes instead. Anything else 
> is premature optimization.  We should not uglify code just for 
> some idealism that exceptions are somehow "bad".
>
>
> T

What about the C++ approach, return values that look like 
exceptions.

You probably have already seen it.
http://open-std.org/JTC1/SC22/WG21/docs/papers/2019/p0709r4.pdf

We are allowed to "steal" from C++ if it is any good. Also it can 
be good for interoperability.