[PD] Ability to access error messages from patch
Claude Heiland-Allen
claude at mathr.co.uk
Thu Jun 17 13:54:40 CEST 2021
Hi all,
On 17/06/2021 12:25, IOhannes m zmoelnig wrote:
...
> Pd is a data flow language and I thikn the per-canvas paradigm maps
> well to the idea of data "passing through a danger zone" - which it
> can also leave as well.
...
> however, I do like oliver's idea of hooking up such a [catch]-like
> object in the object-tree.
...
Both have their merits, I suppose the depth first flow version could
benefit from another object to uninstall the error handler, making it
able to emulate the per-canvas mechanism.
A feature like "(re-)throw error/exception to parent" could be useful in
both cases; with top-level unhandled errors getting printed in the
console. And a "throw error to current exception handler" would be
useful too.
This proliferation of objects makes me think that it could be useful to
have an [error foo] set of objects, like [list].
Something like this perhaps (swap outlet order if you like, doesn't
bother me)
|
[error begin ]
| |
[foo] recover from bar and baz errors (apart from error 42 from
bar) as well as errors from foo
|
[error begin ]
| |
[bar] [route 42 ]
| | |
[error end] recover from bar error 42 [error throw]
|
[baz]
|
Claude
--
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