On Wed, Jan 05, 2011 at 06:12:05PM +0200, Avi Kivity wrote:
> It would be nice to make the error context a stack, and to use the
> with statement to manage the stack:
>
>
> with error.context("main test"):
> foo()
> with error.context("before reboot"):
> bar()
>
> If foo() throws an exception, the context would be "main test",
> while if bar() throws an exception, the context would be "before
> reboot" in "main test".
Autotest targets Python 2.4, and Python 2.4 doesn't have the 'with'
statement.
The error context is already a stack, but without the 'with' statement
you would have to use try/finally explicitly:
_new_context('foo')
try:
# [...]
finally:
_pop_context()
By the way, I think we could make _new_context() and _pop_context() part
of the public interface (i.e. remove the "_" from their names). I see
@context_aware as just a helper for a stack interface that could be used
directly if needed.
--
Eduardo
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