num_enum
Procedural macros to make inter-operation between primitives and enums easier.
Turning an enum into a primitive
use IntoPrimitive;
num_enum
's IntoPrimitive
is more type-safe than using as
, because as
will silently truncate - num_enum
only derives From
for exactly the discriminant type of the enum.
Turning a primitive into an enum with try_from
use TryFromPrimitive;
use TryInto;
Optional features
Some enum values may be composed of complex expressions, for example:
To cut down on compile time, these are not supported by default, but if you enable the complex-expressions
feature of your dependency on num_enum
, these should start working.