Fastest JSON parser in the world is a D project

[wobbles via Digitalmars-d-announce]

On Monday, 26 October 2015 at 20:04:33 UTC, Nordlöw wrote:
> On Wednesday, 14 October 2015 at 07:35:49 UTC, Marco Leise 
> wrote:
>> Example:
>>
>>     double x = 0, y = 0, z = 0;
>>     auto json = parseTrustedJSON(`{ "coordinates": [ { "x": 1, 
>> "y": 2, "z": 3 }, … ] }`);
>>
>>     foreach (idx; json.coordinates)
>>     {
>>         // Provide one function for each key you are 
>> interested in
>>         json.keySwitch!("x", "y", "z")(
>>                 { x += json.read!double; },
>>                 { y += json.read!double; },
>>                 { z += json.read!double; }
>>             );
>>     }
>
> How can `coordinates` member be known at compile-time when the 
> input argument is a run-time string?

I suspect through the opDispatch operator overload.

http://dlang.org/operatoroverloading.html#dispatch