This is needed because of the new changes to Variant. The reference
counter is increased by adding it to a Variant, which means no GDScript
will be freed (or will be double freed if manually freed somewhere).
(cherry picked from commit 4d960efafc)
Now the stack saved in a `GDScriptFunctionState` is cleared as soon as the `yield()` operation is known not to be resumed because either the script, the instance or both are deleted.
This clears problems like leaked objects by eliminating cases of circular references between `GDScriptFunctionState`s preventing them and the objects they refer to in their saved stacks from being released. As an example, this makes using `SceneTreeTimer` safer.
Furthermore, with this change it's now possible to print early warnings about `yield()`s to released script/instances, as now we know they won't be successfully resumed as the condition for that happens. However, this PR doesn't add such messages, to keep the observed behavior the same for the time being.
Also, now a backup of the function name in `GDScriptFunctionState` is used, since the script may not be valid by the time the function name is needed for the resume-after-yield error messages.
Fixes as issue where a subclass calls a base class method that tries to access a constant from the script.
The original code went through every ower class, and for each owner, went through its inheritance tree.
This seems like the wrong order, the modified code goes to each base class, and for each base class goes through the owner tree.
This is more in line with what the parser does, as the current impelemtation allows an access that the parser does not support.
This change should not negatively affect existing code due to the way the parser works
Avoids crashes on debug mode. Instead it now breaks the execution and
show the error in-editor. Will still crash on release.
Also add a similar check to Marshalls to ensure the debugger doesn't
crash when trying to serialize the invalid instance.
Happy new year to the wonderful Godot community!
We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.
Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
Make sure the instance is valid before trying to access the script in
after an error happened. If the instance is not valid it's possible that
the script is invalid as well.
Fix#29623
In some errors, there were closing quotation marks but no opening (e. g. "Unable to iterate on object of type " +
Variant::get_type_name(container->get_type()) + "'."
Before this patch, assert() only took the condition to assert on:
assert(item_data)
Now, it can optionally take a string that will be printed upon failure:
assert(item_data, item_name + " has no item data in ItemDatabase")
This makes it easier to immediately see what the issue is by being
able to write informative failure messages.
Thanks to @wiped1 for sharing their patch, upon which this is based.
Closes#17082
This prevents GDScript functions from leaving the stack too soon when
they are resuming from yield, allowing the ones expecting it to finish
to know the caller.
Helps debugging cases when you use:
`yield(function_which_yields(), "completed")`
since now it shows the call that resumed that function.
Umang Kalra
George Marques
Pedro J. Estébanez
Rémi Verschelde
ChibiDenDen
Marcel Admiraal
noname1477
Mitch Curtis
Bojidar Marinov
Robin Hübner
Furkan Türkal