@safe question

[Paul Backus]

On Wednesday, 12 January 2022 at 00:45:23 UTC, H. S. Teoh wrote:
> IMNSHO, that @trusted lambda thing is an anti-pattern that 
> should be avoided, needless to say already promoted.  It's 
> papering over a problem that ought to be fixed instead of being 
> pushed under the rug.

There's nothing wrong with @trusted lambdas. The recent FUD 
around them is almost entirely unjustified.

> If it takes -dip1000 to compile the OP's code, then I say, by 
> all means, use -dip1000.  It's not *that* hard to add a compile 
> switch to your build.  I know dip1000 isn't quite there yet, 
> but how is it supposed to "get there" if everyone is avoiding 
> to use it?

The reason I hesitate to recommend -preview=dip1000 to a 
beginning D programmer is that because the documentation is 
incomplete, it can be very difficult to *debug* DIP 1000 errors, 
and because the implementation has several known bugs, you cannot 
simply rely on the compiler to tell you when you've gotten things 
right.