Perhaps I missed somewhere, but it seems that you can pass only
classes or interfaces to alias argument of a template. Trying to
pass another type (such as int, int[]) yields an error.
Example of issue:
------------------------
void test(alias T)(int o) {
import std.stdio;
writeln("coo");
}
void main() {
int i;
test!(Object[])(0);
}
------------------------
Try pass Object or IFoo and everything compiles perfectly.
Link to example: https://run.dlang.io/is/jqr9Zi
According to
https://dlang.org/spec/template.html#TemplateAliasParameter,
simple types and arrays are excluded from the list of supported
"alias X" arguments. I'm wondering why do we have such
limitation? Is there any reasoning at limiting primitive types
and arrays?
Thank you,
Alexandru.
