Set metadata in Rust using attributes

Attributes are a general-purpose way to set metadata for various structures in Rust. They use #[...] syntax.

References

• Rust Language Reference: Attributes

Backlinks

• Rust tests can return Result
  • Rust fns marked with the #[test] attribute can return a Result, but must explicitly declare the return type to make this happen. The test will fail on receiving an Err.