And such a range would be dog-slow in an algorithm that assumes save() is quick.
-Steve ----- Original Message ---- > From: Andrei Alexandrescu <[email protected]> > To: Discuss the phobos library for D <[email protected]> > Sent: Fri, June 25, 2010 9:41:13 AM > Subject: Re: [phobos] phobos commit, revision 1689 > > A range implemented as a class would define T save() { return clone(); > } Andrei On 06/25/2010 08:24 AM, Steve Schveighoffer > wrote: > In fact, save should not be implemented unless it looks like > this: > > T save() { return this; } > > So it's pretty > much a property. If you implement save on ranges where the operation will > be costly, you are looking for trouble with algorithms that require > save. > > This is why I don't really like the concept of > save. > > -Steve > > > > ----- Original > Message ---- >> From: Lars Tandle Kyllingstad< > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]> >> To: > Discuss the phobos library for D< > href="mailto:[email protected]";>[email protected]> >> > Sent: Fri, June 25, 2010 2:44:51 AM >> Subject: Re: [phobos] phobos > commit, revision 1689 >> >> Well said. This is the rule > I am using as >> well. > > > -Lars > > > > On Thu, 2010-06-24 at 11:49 -0700, Sean > Kelly >> wrote: >> All a matter of opinion, but I'd say that > @property should only >> be applied to logical properties of the data > structure (go figure). A >> clone method (ie. save) doesn't > represent an attribute of the data, it's simply >> a non-mutating > operation on the data. An easy litmus test is whether the >> > member could be replaced with a public variable. If so, it's probably > a >> property. This is the real purpose of the no-parens syntax > anyway--it >> allows the class designer to replace public data members > with functions at no >> cost to the end user. >> >> > On Jun 23, 2010, at 7:45 AM, Andrei >> Alexandrescu > wrote: >> >>> I think it should be a property. > I >> followed the convention that stuff that doesn't change "this" is > a >> property. >>> >>> > Andrei >>> >>> On >> 06/23/2010 09:01 AM, David > Simcha wrote: >>>> Isn't that the point >> of > @property? I just followed what Andrei was >>>> >> > doing. If there's anywhere where I didn't put @property in, > it's >> purely >>>> an unintentional oversight. > Please let me know >> and/or fix > it. >>>> >>>> On Wed, Jun 23, 2010 at > 9:34 >> AM, Max Samukha< >> href="mailto: > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]"> > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected] >>>> >> > <mailto: >> href="mailto: > href="mailto:[email protected]";>[email protected]"> > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]>> >> > wrote: >>>> >>>> >>>> >> >>>> > On Wed, Jun 23, 2010 at 4:07 PM, >> > href="http://dsource.org";> > href="http://dsource.org";>dsource.org< > target=_blank >http://dsource.org> >> >>>> > < >> href="mailto: > href="mailto:[email protected]";>[email protected]"> > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]<mailto: >> > ymailto="mailto: > href="mailto:[email protected]";>[email protected]" >> > href="mailto: > href="mailto:[email protected]";>[email protected]"> > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]>> > wrote: >> >>>> >>>> > phobos commit, revision >> > 1689 >>>> >>>> >>>> >> > user: > dsimcha >>>> >>>> >>>> >> > save() is sometimes attributed with @property, other times it > is >> >>>> not. Is it really a property? I > don't think it is a good >> idea to tag >>>> > every function with @property just to >> make it callable > without (). >>>> >>>> >> > _______________________________________________ >>>> >> > phobos mailing list >>>> >> ymailto="mailto: > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]" >> > href="mailto: > href="mailto:[email protected]";>[email protected]"> > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]<mailto: >> > ymailto="mailto: > href="mailto:[email protected]";>[email protected]" >> > href="mailto: > href="mailto:[email protected]";>[email protected]"> > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]> >> >>>> > > http://lists.puremagic.com/mailman/listinfo/phobos >> >>>> >>>> >>>> >>>> >>>> >> > _______________________________________________ >>>> phobos > mailing >> list >>>> >> href="mailto: > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]"> > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected] >>>> >> > href=" > >http://lists.puremagic.com/mailman/listinfo/phobos"; > target=_blank >>> > href="http://lists.puremagic.com/mailman/listinfo/phobos"; target=_blank > >http://lists.puremagic.com/mailman/listinfo/phobos >>> >> > _______________________________________________ >>> phobos > mailing >> list >>> >> href="mailto: > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]"> > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected] >>> >> > href=" > >http://lists.puremagic.com/mailman/listinfo/phobos"; > target=_blank >>> > href="http://lists.puremagic.com/mailman/listinfo/phobos"; target=_blank > >http://lists.puremagic.com/mailman/listinfo/phobos >> >> >> > _______________________________________________ >> phobos > mailing >> list >> >> href="mailto: > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]"> > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected] >> >> > href=" > >http://lists.puremagic.com/mailman/listinfo/phobos"; > target=_blank >>> > href="http://lists.puremagic.com/mailman/listinfo/phobos"; target=_blank > >http://lists.puremagic.com/mailman/listinfo/phobos > > > > _______________________________________________ > phobos >> > mailing list > >> href="mailto: > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected]"> > ymailto="mailto:[email protected]"; > href="mailto:[email protected]";>[email protected] > >> > href=" > >http://lists.puremagic.com/mailman/listinfo/phobos"; > target=_blank >>> > href="http://lists.puremagic.com/mailman/listinfo/phobos"; target=_blank > >http://lists.puremagic.com/mailman/listinfo/phobos > > > > > _______________________________________________ > phobos mailing > list > > href="mailto:[email protected]";>[email protected] > > href="http://lists.puremagic.com/mailman/listinfo/phobos"; target=_blank > >http://lists.puremagic.com/mailman/listinfo/phobos _______________________________________________ phobos > mailing list > href="mailto:[email protected]";>[email protected] > href="http://lists.puremagic.com/mailman/listinfo/phobos"; target=_blank > >http://lists.puremagic.com/mailman/listinfo/phobos _______________________________________________ phobos mailing list [email protected] http://lists.puremagic.com/mailman/listinfo/phobos
