I have a
xs. I also have a
const CustomType = Int. Basically I want to index
CustomType values. Easy enough with
xs[custom_mapping(i)]. Is there a way to leverage the type system so I can write
i::CustomType? It seems I can not use the “const” method, because
CustomType will be evaluated to
Int: which means an eventual
getindex(Vector, Int) method call (which is not what I want).
The only way I can come up with is wrapping the vector in a
struct. Is there a more idiomatic/clean way? If I do use a
struct, is there a performance penalty? Maybe I’m missing something obvious…
I would really like to use
x[i] syntax since my code is indexing specific locations pretty heavily. Thanks in advance for any feedback!