Access body/query in @:restrict

[kevinresol]

Currently if we try to access body/query in @:restrict like so:

@:restrict(user.id == body.id)

It will fail with something like undeclared identifier "body".

Would it be possible to parse the body before the check (maybe only if the restrict meta needs it) ?

[back2dos]

For the query it should work (in theory). For the body, this is is pretty much intended, because we don't want to begin body parsing before access is granted. But I suppose we can allow reversing that order.