thiserror
The thiserror
crate provides macros to help avoid boilerplate when defining error types. It provides derive macros that assist in implementing From<T>
, Display
, and the Error
trait.
Speaker Notes
This slide should take about 5 minutes.
- The
Error
derive macro is provided bythiserror
, and has lots of useful attributes to help define error types in a compact way. - The message from
#[error]
is used to derive theDisplay
trait. - Note that the (
thiserror::
)Error
derive macro, while it has the effect of implementing the (std::error::
)Error
trait, is not the same this; traits and macros do not share a namespace.