Eliminate hand-written macros when possible #316
Description
I am currently reviewing the macros -- as you pointed out in another issue @Lin23299, macros aren't great and we should try to avoid them.
- slice_to_ref_array could be written in abstract syntax, as a polymorphic function, and then we wouldn't need slice_to_ref_array2, and we wouldn't need a macro
- some iterators are currently written as macros, but I think we should be able to extract and compile them now; should we simply remove them from the glue, and wait for @Nadrieril to extract everything as needed by the crate (including core) for this to work automatically?
- some functions from core::convert::num are written by hand in eurydice_glue.h; same question, could these be extracted?
- the three definitions from core marked as DEPRECATED could probably go
Which of these proposals makes sense? In the long run, I think having the minimal number of macros would be great.