Autoloaded scripts should always inherit from Node. When you run a
project that tries to autoload a script which doesn’t inherit from Node,
then Godot gives an error.
Before this change, the error said “Script does not inherit a Node”.
That error message is a little bit misleading. If a class inherits a
Node, then one of its superclasses has a Node. If a class inherits
_from_ Node, then one of its superclasses is Node. This change corrects
that mistake.
Fixes#59884.
* Ability to create script languages from GDExtension
* Some additions to gdnative_extension.h to make this happen
* Moved the GDExtension binder to core
This now allows creating scripting languages from GDExtension, with the same ease as if it was a module. It replaces the old PluginScript from Godot 3.x.
Warning: GodotCPP will need to be updated to support this (it may be a bit of work as ScriptInstance needs to be created over there again).
* GDScriptLanguage::complete_code already adds parentheses to function calls, and does this a lot smarter than the language server right now.
* Instead of the previous naive approach we now reuse the same logic as the internal editor.
* For this to have any effect we also have to send the `insertText` field already during the completionRequest and not only during resolve.
* Very old macros from the time Godot was created.
* Limited arguments to 5 (then later changed to 8) in many places.
* They were replaced by C++11 Variadic Templates.
* Renamed methods that take argument pointers to have a "p" suffix. This was used in some places and not in others, so made it standard.
* Also added a dereference check for Variant*. Helped catch a couple of bugs.
To guarantee polymorphism, a method signature must be compatible with
the parent. This checks if:
1. Return type is the same.
2. The subclass method takes at least the same amount of parameters.
3. The matching parameters have the same type.
4. If the subclass takes more parameters, all of the extra ones have a
default value.
5. If the superclass has default values, so must have the subclass.
There's a few test cases to ensure this holds up.
