Hi,
On 29.5.2014 02:38, Oleg Eterevsky wrote:
2. What about exceptions? Is it a design decision not to support them,
or are they planned for some future version? I understand, that
exceptions make memory management more difficult, but maybe there are
ways to restrict their usage to avoid problems (like making it
impossible to pass references as exception parameters?)
I had the same question once. The answer was that exception-safe code is
difficult to write and maintain. Under the closer investigation the
problem is that shared data between inner and outside code of the try
block is a problem and it is similar problem to concurrent programming.
Therefore tasks are building blocks for concurrent code as well for
exception-like error handling. The only thing that Rust current lacks is
a way to run task synchronously on the stack of the caller just for the
case when recovery from fail is needed but concurrency is not.
--
Thanks,
Oleg Eterevsky.
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