Final by default?
Paulo Pinto
pjmlp at progtools.org
Sat Mar 15 02:21:25 PDT 2014
Am 15.03.2014 08:36, schrieb Walter Bright:
> On 3/14/2014 9:02 PM, Manu wrote:
>> That said, function inlining is perhaps the single most important API
>> level
>> performance detail, and especially true in OO code (which advocates
>> accessors/properties).
>
> I find it peculiar to desire a 'final accessor'. After all,
>
> class C {
> int x;
> final int getX() { return x; } <= what the heck is this
> function for?
> }
>
> The only reason to have an accessor function is so it can be virtual.
I don't agree.
In any language with properties, accessors also allow for:
- lazy initialization
- changing the underlying data representation without requiring client
code to be rewritten
- implement access optimizations if the data is too costly to keep around
--
Paulo
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