Why is vibe.d json serializer/deserializer so complex?

[Imperatorn]

On Saturday, 31 October 2020 at 22:42:20 UTC, James Blachly wrote:
> On 10/30/20 1:56 PM, Steven Schveighoffer wrote:
>> [...]
>
> So I've been meaning to ask this as I have been learning Rust 
> off-and-on recently for web development, and was impressed by 
> the traits functionality. In particular, with traits and some 
> agreed upon API, many packages are interchangeable in terms of 
> various functionalities, including JSON 
> serialization/deserialization.
>
> What would be the nearest analog facility in D -- supposing we 
> could agree on a standard API -- to facilitate pluggable 
> serializers?
>
> I am a big fan of asdf (and Steve, haven't tried iopipejson 
> yet, but will do). It would be nice to not rewrite code to try 
> a different serializer, and Rust is really neat in this regard.

An interface defined in the standard library