-- On Wed, 12 Feb 2003 17:14:17 Erik Steven Harrison wrote: > >-- > >On Wed, 12 Feb 2003 18:29:29 > Joseph F. Ryan wrote: >>As near as I can tell, the only problem with the nice flow of: >> >> A I<literal> is a piece of data. >> A I<scalar> is a variable that holds a literal. >> >> A I<list> is a sequence of literals and scalars. >> An I<array> is a variable that holds a list. >> >>is the "Rvalue-assign list", which takes the form of: >> >>($r1, $r2, $r3) = (1, 2, 3); > >I don't see a problem here. The list on the right is still just >value, unmodifiable. It is a list of rvalues. When you use a variable >on the right hand side it is a rvalue. Similarly, a list of variables >doesn't flatten to it's values - it is the list itself that it is >immutable. It's individual members still retain asignibility in >rvalue context.
Okay, pardon me for replying to myself, but that was _really_ badly worded. An example foreach ($foo, $bar, $baz) { .zoomdingle; } The objects in the list retain full status qua objects even though they are in a list, which is why we can call methods on them. Similarly, the fact that a scalar variable acts as a value on the lefthand side and a rvalue on the right hand side is retained even though it is in a list. It is the list itself which is immutable. Python programmers will grasp this real fast - it's just a tuple. -Erik > >-Erik > >> >>Well, what if an "Rvalue-assign list" is simply decoupled from >>a normal "data list." The confusion would end. The concepts >>themselves are separate, so why shouldn't the names be? "data >>lists" become "The One True List Type", and "Rvalue-assign lists" >>become something like "Rvalue sequences" (or a catchier name). >>Peace would reign on earth, or at least p6-lang and p6-doc. >> >>(I hope I'm not missing something obvious here, at any rate :) >> >> >>Joseph F. Ryan >>ryan.311@osu >> >> > > >____________________________________________________________ >Get 25MB of email storage with Lycos Mail Plus! >Sign up today -- http://www.mail.lycos.com/brandPage.shtml?pageId=plus > ____________________________________________________________ Get 25MB of email storage with Lycos Mail Plus! Sign up today -- http://www.mail.lycos.com/brandPage.shtml?pageId=plus