Really nooB question - @property
John Colvin via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Sun Jul 20 10:59:05 PDT 2014
On Sunday, 20 July 2014 at 16:35:52 UTC, Eric wrote:
>
> There are a lot of discussions in the forums about how @property
> should or could be implemented. But I can't seem to find
> anything
> that explains why or when I should use @property with the
> current
> compiler. Can anyone explain why and when I should use the
> @property tag?
>
> Thx.
> Eric
Use @property when you want a pseudo-variable or something that
might be conceptually considered a "property" of the object, i.e.
to do this:
auto blah = thing.someProperty;
thing.someProperty = blahblah;
or
struct myArray(T)
{
T[] arr;
@property size_t memSize() { return arr.length * T.sizeof; }
}
Other than that, don't use it. Ordinary functions can be called
without parenthesis anyway.
Using those ideas you shouldn't run in to any surprises.
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