The non-intrusive ad-hoc borrowing scheme…

[Nick Treleaven]

On Wednesday, 13 November 2019 at 12:22:12 UTC, Ola Fosheim 
Grøstad wrote:
> That allows you to track borrowing during debugging/testing, 
> and turn it off in release mode. You also avoid the 
> inconveniences that Rust comes with.
>
> The downside is that the resulting code is only as safe as the 
> testing environment ensures…

Sounds similar to my runtime-checked RCSlice idea:
https://forum.dlang.org/post/aeeffshzkfjbrejztksj@forum.dlang.org

The checks could be disabled when -boundscheck=off is used.