Conditionally set nothrow: for a block of code.

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On Thursday, 24 May 2018 at 18:51:31 UTC, Mike Franklin wrote:
> I'm trying to find a way to declare a block of code `nothrow:` 
> when compiling with -betterC, but not `nothrow` when not 
> compiling with -betterC.
>
> The solution is needed for this PR:  
> https://github.com/dlang/druntime/pull/2184/files#r188627707
> [...]
> Given that the PR above is for object.d, I can't turn the 
> entire object.d source file into a string and conditionally mix 
> that in.
>  Does anyone have a solution to this?
>
> Thanks,
> Mike

I think conditional application of attributes would be something 
useful. Something like this:

version (D_BetterC)
     enum BetterC = true;
else
     enum BetterC = false;

nothrow!(BetterC):
...

Of course that would require a DIP though