[Qemu-devel] Re: [PATCH 3/8] Add QBuffer

[Avi Kivity <avi@redhat.com>]

On 05/17/2010 11:10 AM, Avi Kivity wrote:
>
> Another way of looking at it: if the client sees { __class__: foo, f1: 
> 10, f2: 9 }, it cannot derive any information from __class__ unless it 
> was aware of foo beforehand.  If that's the case, let's make it part 
> of the schema so it is available at compile time instead of runtime.
>

Or both.  That's similar to a non-object field's type being described 
both in the schema at during runtime.  A static parser can verify 
__class__ matches the expectations, a dynamic parser can look up 
__class__ and call the appropriate constructor.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.