`*Extension` classes missing virtual methods that accept or return pointers

[lilizoey]

*Extension classes often use pointers to interact with the engine. For instance, all of PhysicsDirectSpaceState2D except for the ones inherited from Object use pointers in various places.

We currently do not generate virtual methods that accept or return pointers. This makes many of these classes unusable, as key behavior is not available.

non-exhaustive list:

• PhysicsDirectSpaceState2D,
  • all methods
• ScriptExtension
  • _instance_create
  • _placeholder_instance_create
  • _placeholder_erased

[lilizoey]

It seems that many of the Extension classes have virtual methods that either accept or return pointers. Which are currently excluded because they are usually supplementary/not callable from gdscript, however in Extension classes they are generally not supplementary. and Extension classes are usually not meant to be used in gdscript anyway.

[Bromeon]

True, this was actually omitted by design for now, and can be added later:

gdext/godot-codegen/src/class_generator.rs

Lines 476 to 484 in 33c4e55

	// Currently excluded:
	//
	// * Private virtual methods are only included in a virtual
	// implementation.
	//
	// * Methods accepting pointers are often supplementary
	// E.g.: TextServer::font_set_data_ptr() -- in addition to TextServer::font_set_data().
	// These are anyway not accessible in GDScript since that language has no pointers.
	// As such support could be added later (if at all), with possibly safe interfaces (e.g. Vec for void*+size pairs)

Reclassifying as feature request.
Maybe you could update the title to clarify which types of methods are missing?