Implements typemaps that support a lot of extra funcctionality using procedural macros. docs.rs has a lot more than this readme, including a mini-tutorial and worked example. You can use this to:
- Implement fixed typemaps which don't allocate, and store all their members inline initialized to default values.
- Use this to implement something like the fields-in-traits proposal, where you "name" fields generically using types.
- Generate iteration helpers which can iterate over the typemap as trait objects for any number of traits (e.g. this can
replace
HashMap<TypeId, Box<dyn MyTrait>>, bringing the rest of the functionality along for the ride and also let you do as many traits as you want at once). - Add an optional dynamic section which uses a
HashMapto enable storing any type.
no_std support is WIP in the sense that it's basically done but I don't know enough to reliably finish it. Doing so
shouldn't be hard and I'm very open to contributions which do so and preferrably provide CI configuration.