JasonShui opened a new pull request #2310:
URL: https://github.com/apache/thrift/pull/2310


   <!-- Explain the changes in the pull request below: -->
   Each Struct/Union/Enum generated by thrift-compiler will get two methods: 
`read_from_in_protocol` and `write_to_out_protocol`. 
   Firstly, I think these two methods are representing a certain ability of 
serialization, so they should be put in a trait;
   Moreover, if this trait is provided, we can use trait bounding in out user 
codes, such as
   ```rust
   // pseudo code
   fn serialize_struct<T>(s: T) -> Vec<u8> where T: TObject {
       s.write_to_out_protocol(protocol);
       // do other things..
   }
   ```
   It could also be a pretty useful marker trait as you can see.
   The name of `TObject` is only a superficial opinion, but I believe that 
there are enough reasons to make the trait.
   
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