chaokunyang opened a new issue, #2851:
URL: https://github.com/apache/fory/issues/2851
### Feature Request
Currently Fory Rust only allow c-style enum, we don't allow tagged union
enum since it can't be expressed in other languages.
But for pure rust serialization, it's ok to support such enum:
```rust
enum TestEnum {
V1(String, i32),
V2(String, bool),
}
```
### Is your feature request related to a problem? Please describe
_No response_
### Describe the solution you'd like
We can extend `ForyObject` macro to generate code like:
```rust
match home {
V1(v1, v2) => {
context.writer.write_tag(0);
context.writer.write_str(v1);
context.writer.write_i32(v2);
}
V2(v1, v2) => {
context.writer.write_tag(1);
context.writer.write_str(v1);
context.writer.write_bool(v2);
}
}
```
And for deserialization, we can generate code like:
```rust
let tag = context.reader.read_tag();
match tag {
0 => {
let v1 = context.reader.read_str();
let v2 = context.reader.read_i32();
TestEnum::V1(v1, v2)
}
1 => {
let v1 = context.reader.read_str();
let v2 = context.reader.read_bool();
TestEnum::V2(v1, v2)
}
}
```
### Describe alternatives you've considered
_No response_
### Additional context
_No response_
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