auto_from
This library exports a derive macro for From
. It is used to automatically
generate std::convert::From
implementations for enum variants containing
only one field. It currently works for tuple or struct variants. Here is a
small example:
use From;
This should be most useful when constructing error enums that require
writing many From
implementations, or using many
.map_error(|e| MyError::Variant(e))
calls across the code. This crate
just simplifies the process.