% An Ok Singly-Linked Stack
In the previous chapter we wrote up basically a minimum viable singly-linked stack. However there's a few design decisions that make it kind of sucky. Let's make it less sucky. In doing so, we will:
- Deinvent the wheel
- Make our list able to handle any element type
- Add peeking
- Make our list iterable
And in the process we'll learn about
- Advanced Option use
- Generics
- Lifetimes
- Iterators
Let's add a new file called second.rs
:
// in lib.rs
pub mod first;
pub mod second;
And copy everything from first.rs
into it.