Bytecode annotations - annotations op and custom backtraces

[Jonathan Worthington]

François Perrad wrote:
> The 2 methods 'backtrace' & 'annotations' in PMC Exception are useful
> for post-mortem debug.
> I think that PMC ParrotInterpreter needs the same methods with the
> same interface ie the same output structure.
> Many languages have a backtrace in their debug support.
>
>   
You mean, getting a backtrace even without any exception being thrown?

> The introspection interface of ParrotInterpreter needs to know annotations
>    $P0 = getinterp
>    $P1 = $P0['sub'; level]
>    $P2 = $P0['annotations', level]  # currently not supported
>
>   
I can see that being useful, yes - and it shouldn't be hard to put in 
either. If nobody objects, I can add this.

Thanks!

Jonathan