Lender

This is just my own personal Rust practice, trying to implement a lending iterator.

Check out the [lending-iterator] crate for a full implementation of lending iterators, it's lead by the great Daniel Henry-Mantilla, who knows much more about this than I do and is one of the lead champions of Higher-Kinded things like this in the Rust community. The [streaming-iterator] crate is also a great crate if you only need to iterate over a reference to an item.

If, for whatever unknown reason, you want to use this crate instead of [lending-iterator], this is licensed under the MIT or Apache-2.0 license, as I've obviously repurposed much of the code from the Rust Core Library and using it.

People & Resources

I couldn't have even hoped to begin trying to use this problem as practice without relying on help from the following people and resources, please check them out:

• Daniel Henry-Mantilla by writing [lending-iterator] and many other great crates for complex Rust problems
• Sabrina Jewson's Blog for their awesome blog post on why lifetime GATs are not (yet) the solution to this problem, I highly recommend reading it.
• @vague, Cole Miller, and awesome people on the Rust Users Forum in helping me understand the borrow checker and HRTBs better and being patient with me and other aspiring rustaceans as we try to learn more about Rust.
• Finally, it goes without saying, everyone who's contributed to Rust core library for making such a great language and iterator library.

Unsafe & Transmutes Beware!!!

Many patterns in lending iterators require polonius-emulating unsafe code, but please, if you see any unsafe code that can be made safe, please let me know! I am still learning Rust and I'm sure I've made many mistakes.