On Tuesday, 13 September 2022 at 00:57:58 UTC, Kyle Ingraham
wrote:
I am writing a library where I would like to be able to store
instances of a type of class to an associative array for later
usage. Each class stored has to implement a function as part of
the required interface. The argument given is always the same
type but the return value should be flexible. I solved this
with an interface:
```d
interface PathConverter
{
T toD(T)(const string value) @safe;
}
```
https://dlang.org/spec/template.html#limitations
Templates cannot be used to add non-static fields or virtual
functions to classes or interfaces.
You *should* get an error from the compiler for trying to do
this, instead of just a linker error somewhere else down the
line, but either way it's not going to work. You'll have to find
another solution.
