Robert Bradshaw schrieb am 17.09.2018 um 15:44:
> One of the pain points in Cython is that one must explicitly annotate
> non-object returning functions with except clauses. Would it be worth
> trying to change the default here, making exception-suppressing opt-in
> rather than opt-out?
>
> There are a couple of open questions, e.g.
> * What would the syntax be?
> * What about extern functions?
> * What would the performance impact be? Could it be mitigated?
Probably a good idea, and worth a 3.0 ticket.
Note that the default for return type annotations is to automatically
propagate exceptions, in order to keep the drop from Python semantics gentle.
@cython.cfunc
def func() -> cython.int:
...
is read as "except? -1", unless declared otherwise.
Stefan
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