On 11/13/19 9:01 AM, BoQsc wrote:
I don't like to see exclamation marks in my code in as weird syntax as
these ones:
to!ushort(args[1])
s.formattedRead!"%s!%s:%s"(a, b, c);
I'm not sure why, but template instantiation syntax is prevalent in the
documentation examples of d lang libraries. It almost seems like every
other example contains at least one or two of them.
It look horrible, and I'm feeling like I'm being forced/coerced to learn
from examples that do not provide alternatives to the template
instantiation syntax. Even if the alternative examples were provided,
why would anyone want to have syntax as ugly and weird as current
template instantiation syntax with exclamation point in the middle of
the statement with all other things that come with it.
I really encourage you to learn to like templates. They are awesome.
But D of course provides so many tools, you can almost get away with not
seeing them instantiated.
struct To
{
import std.conv : to;
static opDispatch(string s, Args...)(Args args) {
static if(s.startsWith("_")) // needed for keywords
return opDispatch!(s[1 .. $])(args);
else
mixin("return to!" ~ s ~ "(args);");
}
}
To._ushort(args[1]); -> translates to to!ushort(args[1]).
But that's a lot of work. Better to just use the library as is. People
will understand it more.
Note that none other than Andrei himself once proposed changing template
instantiation syntax (to . instead of !)
-Steve
