Which language constructs could be done as a library if we accept some breaking changes?

[Nick Treleaven]

On Monday, 29 November 2021 at 11:34:41 UTC, bauss wrote:
> Pretty much anything can be solved in a library, except for 
> things that requires AST/macros.

There is no way to implicitly convert from other types 
(particularly built-in types) to a struct, and I think Walter is 
opposed to introducing that. This means no null -> Slice or null 
-> AA and other implicit conversions. So any library solution 
would be more awkward to use compared to the current language 
equivalents.