[Proposal] Coding Standards

[d0cd]

💥 Proposal

We propose the following coding standards for Leo:

• If code is unreachable for all invocations, use the unreachable! macro.
• Do not use unwraps, use expect with a reason, assert!, or a test-and-panic.
• Every struct, struct member, and function should have a comment explaining what it does. If it's a public item, use a doc comment.

TODO

Existing Leo needs to be updated to this standard.