Memory Leaks at RawGesture.gd and Util.gd

[Sam2much96]

Error Log: WARNING: ObjectDB instances leaked at exit (run with --verbose for details).
at: cleanup (core/object.cpp:2070)
Leaked instance: GDScript:6674 - Resource path:
Leaked instance: GDScript:6675 - Resource path:
Leaked instance: GDScriptNativeClass:769
Leaked instance: GDScript:6672 - Resource path: res://addons/GDTIM-Demo-v2_1_2/RawGesture.gd
Leaked instance: GDScript:6676 - Resource path:
Leaked instance: GDScript:6673 - Resource path: res://addons/GDTIM-Demo-v2_1_2/Util.gd
Leaked instance: GDScriptNativeClass:753
Hint: Leaked instances typically happen when nodes are removed from the scene tree (with remove_child()) but not freed (with free() or queue_free()).
ERROR: Resources still in use at exit (run with --verbose for details).
at: clear (core/resource.cpp:417)
Resource still in use: res://addons/GDTIM-Demo-v2_1_2/Util.gd (GDScript)
Resource still in use: res://addons/GDTIM-Demo-v2_1_2/RawGesture.gd (GDScript)
Orphan StringName: drags
Orphan StringName: copy
Orphan StringName: latest_time
Orphan StringName: Reference
Orphan StringName: as_text
Orphan StringName: new
Orphan StringName: GDScriptNativeClass
Orphan StringName: callv
Orphan StringName: releases
Orphan StringName: duplicate
Orphan StringName: latest_event_id
Orphan StringName: i_es
Orphan StringName: relative
Orphan StringName: get_script
Orphan StringName: now
Orphan StringName: index
Orphan StringName: f
Orphan StringName: back
Orphan StringName: _update_screen_drag
Orphan StringName: get
Orphan StringName: start_time
Orphan StringName: Util
Orphan StringName: value
Orphan StringName: Touch
Orphan StringName: is_consistent
Orphan StringName: speed
Orphan StringName: get_ticks_usec
Orphan StringName: es
Orphan StringName: active_touches
Orphan StringName: res://addons/GDTIM-Demo-v2_1_2/RawGesture.gd
Orphan StringName: time
Orphan StringName: rollback_absolute
Orphan StringName: append
Orphan StringName: pop_back
Orphan StringName: res://addons/GDTIM-Demo-v2_1_2/Util.gd
Orphan StringName: keys
Orphan StringName: erase
Orphan StringName: property_name
Orphan StringName: elapsed_time
Orphan StringName: events_name
Orphan StringName: has
Orphan StringName: pressed
Orphan StringName: presses
Orphan StringName: InputEventScreenTouch
Orphan StringName: position
Orphan StringName: length
Orphan StringName: history
Orphan StringName: Drag
Orphan StringName: _add_history
Orphan StringName: diff_limit
Orphan StringName: Event
Orphan StringName: event
Orphan StringName: empty
Orphan StringName: InputEventScreenDrag
Orphan StringName: InputEventAction
Orphan StringName: type
Orphan StringName: get_ends
Orphan StringName: _init
Orphan StringName: size
Orphan StringName: map_callv
Orphan StringName: centroid
Orphan StringName: GDScript
Orphan StringName: _update_screen_touch
Orphan StringName: rollback_relative
Orphan StringName: SEC_IN_USEC
Orphan StringName: vargs
Orphan StringName: length_limit
Orphan StringName: get_linear_event_history
Orphan StringName: values
StringName: 69 unclaimed string names at exit.
Error: Process completed with exit code 1.

[Sam2much96]

Reasons:

1. RawGesture.gd introduces memory leaks once freed. Calling map_callv() in Util also introduces a memory leak in Util.gd

[Federico-Ciuffardi]

Hello @Sam2much96 thanks for reporting. Looks like this is a known Godot bug, which has been fixed in Godot 4.

Did you notice any performance issues due to this error or did you notice it because of the error message?

I managed to make the error message go away by deleting all RawGesture references in the type hints of RawGesture.gd, but I don't think it's worth doing this if the leak doesn't cause performance issues as the code is less clear without the type hints.

[Sam2much96]

No, there was no performance issues. I'll implement this fix. Including the RawGesture reference as a type is good code, I only noticed the errors because my project is large and I compile using CI in Dockers. It might be an error only specific to CI compiler runs.