Crash on 'Generate POT' when Dictionary-modifying Method is Present

[michaldev]

Godot version

4.0 -> latest

I've tested all this versions:
4.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4
4.1, 4.1.1
4.2 dev 4

in all this versions problem exists.

System information

Fedora 38, macOS

Issue description

I have found a very strange bug while generating translations. The presence of a method modifying the dictionary's content causes the editor to crash during the generation of the translation template.

The mere presence of an uninvoked method causes a crash.

Edit: The issue occurs not only with singletons. Any script containing a method that modifies any dictionary leads to a crash.

Steps to reproduce

Project -> Project Settings -> Localizations -> Generate POT -> Add (Add your singleton)

extends Node

var session_data = {
	"coins" : 0,
	"power": 0
}

var shop_items = [
	{
		"id": "max_hp",
		"name": tr("First Shop Item"),
		"desc": tr("Great tool."),
	}
]

func add_power(val: int):
	session_data["power"] += val

⚠️ Problem is in add_power method, not in shop_items.

Project -> Project Settings -> Localizations -> Generate POT -> Generate

And... Crash.

Nagranie.ekranu.z.2023-09-14.13-10-42.webm

Minimal reproduction project

translation_gm_crash.zip

Just open project and go to: Project -> Project Settings -> Localizations -> Generate POT -> Generate

[michaldev]

Logs from console:

================================================================
handle_crash: Program crashed with signal 11
Engine version: Godot Engine v4.1.1.stable.official (bd6af8e0ea69167dd0627f3bd54f9105bda0f8b5)
Dumping the backtrace. Please include this when reporting the bug to the project developer.
ERROR: FATAL: Index p_index = 1 is out of bounds (size() = 0).
   at: get (./core/templates/cowdata.h:155)

================================================================
handle_crash: Program crashed with signal 4
Engine version: Godot Engine v4.1.1.stable.official (bd6af8e0ea69167dd0627f3bd54f9105bda0f8b5)
Dumping the backtrace. Please include this when reporting the bug to the project developer.
ERROR: FATAL: Index p_index = 1 is out of bounds (size() = 0).
   at: get (./core/templates/cowdata.h:155)

[michaldev]

The subject appears to be more extensive. The crash also happens with files that are not autoloaded singletons.
Issue has been updated.

[michaldev]

Having thoroughly investigated the issue, I can confirm that the problem is not limited to autoloaded singletons. It occurs with any file that has a method modifying any dictionary. This indicates that the bug is critical and is almost always present. Below, I present an example that does not use an autoloaded singleton.

translation_crash_2.zip
Project -> Project Settings -> Localizations -> Generate POT -> Generate

[michaldev]

The generation problem also occurs in many other unidentified cases.

[michaldev]

The problem occurs on various operating systems. Today I tested on macOS.
Issue has been updated.

[michaldev]

Today I've tested all stable versions of Godot 4:
4.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4
4.1, 4.1.1

And latest dev 4 from godot 4.2.

On all this godot versions problem exists.

Issue has been updated.

[silverkorn]

Just a little shoutout to the gold member sponsorship. Made me curious 😆