Re: Understanding some EXPR nodes.

[Brendon Costa <bcosta at avdat dot com dot au>]

Thanks for the reply. One thing that I didnt quite get...


Ian Lance Taylor wrote:

> > TRY_CATCH_EXPR/TRY_FINALLY_EXPR
> >    
> If operand 0 throws an exception, there is an implicit rethrow after
> executing operand 1.  (Of course, operand 1 can prevent that rethrow
> by doing its own throw, or by calling a function which does not
> return, etc.).
>  
>
> TRY_CATCH_EXPR is generated for C++
>    try { ... } catch (...) { }
>
> TRY_FINALLY_EXPR is generated for
>    class C { ~C(); }; ... { C c; ... }
> to ensure that C's destructor is run.
>
> And of course they can be generated for other languages as well.
>  

For the C++ code shown above try { ... } catch(...) {}
From memory I get a TRY_BLOCK node and not a TRY_CATCH_EXPR.

Also is the implicit rethrow just for the TRY_FINALLY_EXPR and not for 
the TRY_CATCH_EXPR  or is it for both of them?

Thanks,
Brendon.