[Development] Disabling exception support in QtCore?

[Thiago Macieira]

On terça-feira, 1 de outubro de 2013 19:31:05, Hausmann Simon wrote:
> Hmm question - certainly worth it for sjlj platforms like 32-bit ios.
> 
> One thing I'd love to see is the ability to throw exceptions through
> meta-call invocations (would be useful for qml, which uses exceptions)

The rule is: do not let exceptions propagate through Qt code.

If you call qt_metacall directly (or, better, the static version), then the 
code is compiled with exceptions if they were enabled by the user code. In 
that case, it's safe to throw exceptions (provided that the class of the 
return type is also exception-safe).

If you use the invokeMethod() machinery, it's not thread-safe today and not 
meant to be.
-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
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