On Wednesday, 17 April 2024 at 02:39:25 UTC, Paul Backus wrote:
This is called [row polymorphism][1], and it does not exist in
D.
You could approximate it by making `someFunction` a template,
and accepting any type `T` that has the necessary members
instead of only accepting `typeB`. But this is only possible if
you are free to modify the definition of `someFunction`.
Is there a way I can replace "`TypeB`" in the function parameters
with another symbol, and then define that symbol to accept
`TypeB` as an argument, but also accept `TypeA` which would get
converted to `TypeB` using a function? I'm willing to make a
function template if it's rather simple.
