Is it correct that all of these need to have sizes known at compile time?
- array items
- tuple items
HashMapkeys and values
IIUC, in order to put items whose sizes are not known at compile time into these, one approach is to put each item in
Assuming all of this is true, what is it in the documentation for these types that tells me this?
For example, I don't see anything about it here: array - Rust