Hi,
I did consider that as an alternate option.
function overload_register($op, $lhtype, $rhtype, $callback);
overload_type(ZEND_ADD, 'Complex', 'any', 'Complex::add');
This would get pretty expensive in terms of large lookup tables though, so I'm
hesitant there.
This is much better, IMO, as the syntax can be extended to every type
hints (including union types in the future). It also allows to overload
operators on scalar types (operation on arrays for instance). Magic
methods just don't fit there.
But I'm not sure we should overload at the opcode level, as the
userspace method should receive different codes for '+=' and '+'.
Anyway, supporting scalar types, union types, and 'any' without loosing
too much performance is far from obvious.
Regards
François
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