Re: Towards a reasonable unwinding flow-control semantics.

[Chaim Frenkel]

>>>>> "GB" == Graham Barr <[EMAIL PROTECTED]> writes:

>> There is one case to be considered, what if the try block wishes
>> to avoid its own catch clauses, and start the unwinding with the
>> uplevel try block.

GB> Can you think of a time you would want that ?

Here's one. If the catch blocks translate exceptions into a more
domain specific exception. And the try block already knows what to do
with the error. No need to put in a special case, just let it leak
past the catches.

But more directly, if the exception is directly detected/raised in the
try block itself. I probably wouldn't want to route it through the
local catches.

The try block knows what the situation is, it did it. So the exception
is aimed at the caller not at itself.

<chaim>
-- 
Chaim Frenkel                                        Nonlinear Knowledge, Inc.
[EMAIL PROTECTED]                                               +1-718-236-0183