Dan Sugalski wrote:
> At 9:51 AM +0200 9/13/02, Leopold Toetsch wrote:
>
>> and is a perl6 %h{"a"}[0][1] a PASM P2["a";0;1]?
>
> Yes.
Fine, thought so too, thanks for your quick answer.
I have already a patch for it, I'll make an entry in t/pmc/perlhash.t too.
_But_:
What about all these bogus additional vtable methods of e.g. PerlHash,
that are currently implemented, or have dummy function bodies?
My proposal:
- get rid of them, _all_. If one wants multiply two hashes, he can
implement a _meaningful_ method. Add and subtract could be useful, but
not with the current implementation.
- get_string returns "PerlHash[0xpmcaddr]"
- let the default.pmc, where all these non existent methods will end,
through an appropriate execption.
- if any pmc needs a functionality from current default.pmc, then:
- copy default.pmc to defaultscalar.pmc
- and let these PMCs inherit from this class.
(default.pmc works now similar to PerlUndef, but tries to do something
meaningful, e.g. get_integer, but all classes I looked at do have there
own get_integer.)
- default.pmc shoud be number #0 in the PMC enumeration, so that an
lookup of a non existant PMC class will return 0 (as it doese now) but -
this class is not valid.
- default.pmc could be renamed to invalid.pmc, to make clear, what the
intent is.
leo
