Chaining exceptions

[Andrei Alexandrescu]

Chris Nicholson-Sauls wrote:
> BCS wrote:
>> Hello Jesse,
>>
>>> On Wed, 18 Nov 2009 18:27:47 -0800, Andrei Alexandrescu wrote:
>>>
>>>> Thanks! Question - is there a way to fetch the current Throwable from
>>>> within a finally clause?
>>>>
>>>> Andrei
>>>>
>>> I'm pretty sure you can't since finally isn't passed an exception. I
>>> also don't see anything in my quick search.
>>>
>>
>> That stands to reason because in some cases (when things go correctly) 
>> there isn't one.
>>
>>
> 
> One hopes.  Just the same: (hypothetical syntax incoming)
> 
> try {
>     // ...
> }
> catch ( ExceptionA exa ) {
>     // ...
> }
> catch ( ExceptionB exb ) {
>     // ...
> }
> finally ( x ) {
>     // ...
>     if ( x ) throw new ExceptionC( x );
> }
> 
> And obviously if finally has no () it doesn't bother with the feature.
> 
> -- Chris Nicholson-Sauls

I'm not that fancy. An API call getCurrentError returning an Error 
object or null is all that's needed. And more general too.

Andrei