This isn't about Scala; I just copy/pasted what I'd previously written out
of sheer laziness :)
I'll repeat the same code in Java, and still give you all the wanted
qualities (except the one about having an easier syntax than Java, that
would be somewhat difficult)
//using try/catch
try {
FileHandle handle = fileOpen(fileName);
doSomethingWithFile(handle);
} catch (FileNotFoundException e) {
...
} catch (IOException e) {
...
} catch (Exception e) {
...
} catch (throwable e) {
...
}
So you have pattern matching (of a sort), and it can be easily used from any
stack frame (so long as you drop the requirement of checked exceptions)
2010/9/22 Cédric Beust ♔ <[email protected]>
>
>
> On Wed, Sep 22, 2010 at 9:30 AM, Kevin Wright <[email protected]>wrote:
>
>>
>>
>> 2010/9/22 Cédric Beust ♔ <[email protected]>
>>
>>>
>>>
>>> On Wed, Sep 22, 2010 at 8:19 AM, Kevin Wright
>>> <[email protected]>wrote:
>>>
>>>> Instead, a language can offer exhaustive pattern matches in a range of
>>>> other, non-exceptional scenarios, so offering the best of both worlds.
>>>
>>>
>>> In my opinion, the best of both worlds would be being able to handle
>>> exceptions in any stack frame with an easier syntax than Java's current one,
>>> possibly with pattern matching on the exception type. Unfortunately, no
>>> language supports both this and checked exceptions today.
>>>
>>>
>> Sure it does, if I widen my previous code a little:
>>
>
> I know you never miss an opportunity to post Scala code, but please, read
> my posts a little bit more carefully, I specifically mentioned checked
> exceptions, so I stand by my claim: no language supports these two features
> today.
>
> --
> Cédric
>
>
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--
Kevin Wright
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