Re: RFC 189 (v1) Objects : Hierarchical calls to initializers anddestructors

2000-09-02 Thread Damian Conway
> The "multiple inheritance paths" one is good. I like that part a lot. > But the rest makes me really nervous if there's no way to override or > change it. There is. I'll try and get the C RFC out today. > One thing nobody's brought up is this: What if you decide you want the >

Re: RFC 189 (v1) Objects : Hierarchical calls to initializers anddestructors

2000-09-02 Thread Nathan Wiger
> > So, you don't define a SETUP. BUT, the author of a module you're > > inheriting from defined a SETUP, not to your knowledge? > > No worse that the current situation in which you have no clue what the > guy you're inheriting from expects. Better to have SETUPs called > below you than to not e

Re: RFC 189 (v1) Objects : Hierarchical calls to initializers anddestructors

2000-09-02 Thread John Siracusa
On 9/2/00 12:12 PM, Nathan Wiger wrote: > I think this RFC could work for this, but as I noted in a private email > to Damian I'd rather see a whole new keyword made, maybe "setup"? > > sub new { setup {}, @_ } > sub SETUP { ... } Sure, but does setup() bless? That's the question... :) In othe

Re: RFC 189 (v1) Objects : Hierarchical calls to initializers anddestructors

2000-09-02 Thread Nathan Wiger
John Siracusa wrote: > > I'm pretty sure one of the big points about the system described is that it > ensures both that there's always a predictable and automatic chain of events > for SETUP/DESTROY (without requiring the programmer to create and document > his own bug-free implementation) and i

Re: RFC 189 (v1) Objects : Hierarchical calls to initializers anddestructors

2000-09-01 Thread John Siracusa
On 9/2/00 12:16 AM, John Tobey wrote: > Every base's SETUP gets the same argument list? That seems highly > undesirable from an OO-purity standpoint. Or do you have a syntax for > member initializer lists in store for us? I've been thinking about this too. I want some sort of decision to save

Re: RFC 189 (v1) Objects : Hierarchical calls to initializers anddestructors

2000-09-01 Thread Damian Conway
> What happens on reblessing? An excellent question, and one that has been exercising my mind for some time now. I have come to the conclusion that a reblessing must either: * invoke the old class's DESTROY(s) and then invoke the new class's SETUP(s), or * invoke s

Re: RFC 189 (v1) Objects : Hierarchical calls to initializers anddestructors

2000-09-01 Thread Tom Christiansen
What happens on reblessing? --tom

Re: RFC 189 (v1) Objects : Hierarchical calls to initializers anddestructors

2000-09-01 Thread John Siracusa
On 9/1/00 8:02 PM, Nathan Wiger wrote: >> I haven't commented on RFC 171 because I assumed it would be shot down >> quickly by the Major Contibutors(tm), but let me just say now that I'm >> firmly in this camp: > > Funny, I don't see much difference between RFC 171 and this RFC: > > 171: constr

Re: RFC 189 (v1) Objects : Hierarchical calls to initializers anddestructors

2000-09-01 Thread Damian Conway
> What if you want to bless something but not call all its cascading > SETUPs? Then don't *define* cascading SETUPS in the first place. :-) C still would have the existing Perl 5 behaviour. Things only change if you add these new-mangled SETUP methods. The point of welding SETUP calls to

Re: RFC 189 (v1) Objects : Hierarchical calls to initializers anddestructors

2000-09-01 Thread Nathan Wiger
> I haven't commented on RFC 171 because I assumed it would be shot down > quickly by the Major Contibutors(tm), but let me just say now that I'm > firmly in this camp: Funny, I don't see much difference between RFC 171 and this RFC: 171: constructor called on object creation 189: construc