On 09/23/2015 01:44 AM, Sönke Ludwig wrote:
An alternative idea would be to mix in a local "writeln" function, which
can then be used multiple times without syntax overhead:
mixin template interp()
{
void iwriteln(string str)()
{
// pretend that we actually parse the string ;)
write("This is ");
write(somevar);
writeln(".");
}
}
void main()
{
int somevar = 42;
mixin interp;
iwriteln!("This is ${somevar}.");
}
Hmm, interesting idea. I'd leave it as a string-returning function,
rather than automatically printing, but a writeln convenience wrapper is
a nice idea too.
The one problem I'm seeing with it though, is it wouldn't be able to see
symbols declared between the "mixin interp;" and any later uses of it. Ie:
void main()
{
int somevar = 42;
mixin interp;
iwriteln!("This is ${somevar}.");
int another = 17;
iwriteln!("This won't work, using ${another}.");
}
Seems like it would be too awkward and confusing to be worthwhile. :(
