Short: New efun deep_call_other()
From: Daniel von Dincklage <vondincklage@usa.net>
Date: Mon, 22 Jun 1998 00:53:36 +0200
Type: Feature
State: Unclassified
See also: p-990204-1, f-011011

(Sorry for taking that long to reply)

On Fri, 19 Jun 1998, Daniel von Dincklage wrote:
>> - A deep_call_other efun
>>   Calls the function in all inherits, this is esp. useful for the
>>   Move-Object-driverhooks - You could use deep_call_other,"init"
>>   there and never have to worry about people forgetting the ::init
>>   in their files again.

On Sat, 16 Jan 1999, Logic wrote:
>
> I can see a problem here; what happens when you have an init() that looks
> like:
>
> void init()
> {
>       initialize_things();
>       do_stuff();
>       ::init();
> }
>
> In the case of deep_call_other(), you don't have an opportunity to do any
> initialization before going up the inheritance chain.
Of course, that could lead to some confusion. In addition, my current
implementation calls the functions in the inherits in a more or less
random manner. Please note that the ::init() in your example will
still work, providing quite a big level of additional confusion.
The simple solution to this problem is simply to only use
code/variables declared in the same class, as the current init() was
declared. Adding this restriction to init() would be a bit too
much, so one could have a second "deep_init" function. This works
quite well, as I use the deep_pre_create-Hooks here quite often.