[OT] OT: Null checks.

[Kagamin]

On Tuesday, 6 May 2025 at 06:11:29 UTC, Walter Bright wrote:
> D is set up so if you throw an `Exception`, then destructors 
> will run as the stack unwinds. But if you throw an `Error`, you 
> can catch it but the destructors don't run.
>
> The reason is that `Error` means the program has entered an 
> invalid state. Nothing in the program can be trusted any more. 
> The program should do as little as possible to close down 
> gracefully.
>
> The template `std.exception.enforce` works like `assert`, but 
> throws an `Exception` instead.

Or do you mean _enforceNoOverlap should be renamed to 
_assertNoOverlap?