deserialization: creating a class instance without calling constructor

[Jacob Carlborg via Digitalmars-d-learn]

On 2015-05-21 11:06, Timothee Cour via Digitalmars-d-learn wrote:
> Can I create an instance of A without calling a constructor? (see below)
> Use case: for generic deserialiaztion, when the deserialization library
> encounters a class without default constructor for example (it knows
> what the fields should be set to, but doesn't know how to construct the
> object).
>
> class A{
>    int x=2;
>    this(int x){
>      this.x=x;
>    }
> }
>
>
> This came up here:
> https://github.com/msgpack/msgpack-d/issues/54#issuecomment-104136148
> I provide some hacky solution for that in that thread but I suspect it's
> not safe and something is missing.

Here's how I do it in my serialization library Orange [1]

[1] 
https://github.com/jacob-carlborg/orange/blob/master/orange/util/Reflection.d#L166

-- 
/Jacob Carlborg