# enum_builder
Simple macros that allow building enum types from variants that can be defined in multiple dispersed files in the crate.
[](https://crates.io/crates/enum_builder)
[](https://docs.rs/enum_builder/latest/enum_builder/)
[](https://github.com/garfunkel/enum_builder/blob/master/LICENSE)
[](https://github.com/garfunkel/enum_builder)
## Example
#### main.rs
```rust
mod animals;
use animals::*;
#[enum_builder]
enum Animal {}
// expanded result
// enum Animal {
// Dog(Dog),
// Cow(Cow),
// Fish(Fish),
// }
```
#### animals.rs
```rust
#[enum_builder_variant(Animal)]
struct Dog {}
#[enum_builder_variant(Animal)]
struct Cow {}
#[enum_builder_variant(Animal)]
struct Fish {}
```
## Tips
It can be very useful to combine this crate with the
[enum_dispatch](https://docs.rs/enum_dispatch/latest/enum_dispatch) crate, to allow for a simple
"plugin" architecture without the overhead of dynamic dispatch. When doing this, take care to note
that the order of macros is important, as [enum_builder](https://docs.rs/enum_builder/latest/enum_builder/attr.enum_builder.html) must be used before
[enum_dispatch](https://docs.rs/enum_dispatch/latest/enum_dispatch/attr.enum_dispatch.html).
#### Example
```rust
#[enum_builder]
#[enum_dispatch]
enum Animal {}
```