Regarding the original proposal:
I like the idea. I think it would be nice to allow the application of variadic
args from an array. The syntax I could think of is:
let args = ["World"]
printf("Hello %s", *args)
So, "*" just converts "[a,b,c]" into "a,b,c", that's the idea. What do you
think? (I don't suggest that this should also be used for dynamically
dispatching overloaded methods, but if it would work, I would not complain ;)
.) Syntactically, it is no breaking change, and could also be introduced after
Swift 3 has been released. From the perspective of the ABI, I don't know.
Regarding the removal of varargs:
No way, -100 from me. Just because you don't like a feature, doesn't mean it
should be banned. I, for example don't like certain { curly brace } styles, but
that doesn't mean that I would be happy if the only curly brace style that the
language allows would be my style. Maybe my tastes change in a year or two. And
for things like `sprintf`, I think variadic args are really helpful. In
Objective-C, I use them for example for logging, having a function signature
like NSString's stringWithFormat:. In that case, having to put a @[ bracket ]
around all log arguments would be bad. And writing LogMe(@"it's done.", @[])
looks weird too!
-Michael
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