Conditional catch clause
bruant.d at gmail.com
Wed Dec 19 08:04:58 PST 2012
Le 19/12/2012 16:45, Brandon Benvie a écrit :
> Another benefit is in not polluting the stack trace for actual errors,
> which is actually a pretty big annoyance now for control flow
> try...catch wrappers like for of shims.
This is making me realize that maybe the language needs a third way to
end a frame. This third way wouldn't propagate as throw does but would
be used only as a communication mechanism between the engine and a
In an iterator, one would express "break StopIteration" to stop the
iteration. In a .forEach, one would write "break StopIteration" to stop
What I'm describing might be violently backward incompatible (and
doesn't behave well inside switch statement and in cases where there are
labels), but I find the thought experiment interesting.
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