Cache zend_function*

Hi Glash Gnome,

I'm doing the Cairo C API extension.
Also there is a wrapper written in php for the OOP side( example:
https://github.com/gtkphp/gtkphp/blob/main/lib/Cairo/Context.php)

So far, so good.

Now let's do the same thing with Gtk,
(https://github.com/gtkphp/gtkphp/blob/main/lib/Gtk/Widget.php#L7)
Luckily I can store zend_function pointer in the GtkWidgetClass*( C-like
OOP)

Finally, I do the same thing for GHashTable( C API + php OOP)
But now I need to use a global zend_array/hash to store the overridden
methods
for the same reasons as https://github.com/php/php-src/pull/7695

I think it is better( more generic, simple to understand) to overload the
zend_class_entry .

Do you think this is a good idea?
Is this possible ?
Do you have a solution for me?

Are you talking about all methods or just ArrayAccess?

If you're talking about https://github.com/gtkphp/php-ext-gtk-src/blob/master/php_glib/hash-table.c
it's possible to associate the table of overridden methods with the instance of the object,
and look it up in a C property of intern->methods to call the overridden method.

• If you're talking about avoiding doing a hash table lookup on every method call to an instance, you can use a methods property.

https://github.com/php/php-src/blob/PHP-8.1.0/ext/spl/spl_fixedarray.c#L241-L301 does that - see create_object, spl_fixedarray_new, and spl_fixedarray_object *intern;
(I implemented that in https://github.com/php/php-src/pull/6552)

It turns out review comments mentioned something similar about ArrayAccess.
At the time I wasn't as familiar with how it'd be done for all classes and work with inheritance, though I think it's possible.

- If arraylike_funcs_ptr were added to php for ArrayAccess, instance->ce->arrayaccess_funcs_ptr->offsetget->scope != my_base_class_entry could be used to check if the internal implementation was overridden

Ideally these methods would be cached in the class_entry, but that's a larger change.

// Declared in Zend/zend.h
// Initialized in Zend/zend_interfaces.c
// ....
	/* allocated only if class implements Iterator or IteratorAggregate interface */
	zend_class_iterator_funcs *iterator_funcs_ptr;

Regards,
Tyson