GDScript crash while attempting to load and compile scripts running GUT unit tests

[Xrayez]

Godot version:
3.2.4.beta bca2633
I suspect regression from #41931. (CC @RandomShaper).

OS/device including version:
Tested on Windows 10 and Linux Server platforms.

Issue description:
While running unit tests with GUT:

godot.windows.tools.64.goost.exe!Map<StringName,GDScript::MemberInfo,Comparator<StringName>,DefaultAllocator>::front() Line 614 (d:\usr\src\godot\goostengine\goost\godot\core\map.h:614)
godot.windows.tools.64.goost.exe!Map<StringName,GDScript::MemberInfo,Comparator<StringName>,DefaultAllocator>::_copy_from(const Map<StringName,GDScript::MemberInfo,Comparator<StringName>,DefaultAllocator> & p_map) Line 512 (d:\usr\src\godot\goostengine\goost\godot\core\map.h:512)
godot.windows.tools.64.goost.exe!Map<StringName,GDScript::MemberInfo,Comparator<StringName>,DefaultAllocator>::operator=(const Map<StringName,GDScript::MemberInfo,Comparator<StringName>,DefaultAllocator> & p_map) Line 669 (d:\usr\src\godot\goostengine\goost\godot\core\map.h:669)
godot.windows.tools.64.goost.exe!GDScriptCompiler::_parse_class_level(GDScript * p_script, const GDScriptParser::ClassNode * p_class, bool p_keep_state) Line 1883 (d:\usr\src\godot\goostengine\goost\godot\modules\gdscript\gdscript_compiler.cpp:1883)
godot.windows.tools.64.goost.exe!GDScriptCompiler::compile(const GDScriptParser * p_parser, GDScript * p_script, bool p_keep_state) Line 2176 (d:\usr\src\godot\goostengine\goost\godot\modules\gdscript\gdscript_compiler.cpp:2176)
godot.windows.tools.64.goost.exe!GDScript::reload(bool p_keep_state) Line 605 (d:\usr\src\godot\goostengine\goost\godot\modules\gdscript\gdscript.cpp:605)
godot.windows.tools.64.goost.exe!ResourceFormatLoaderGDScript::load(const String & p_path, const String & p_original_path, Error * r_error) Line 2309 (d:\usr\src\godot\goostengine\goost\godot\modules\gdscript\gdscript.cpp:2309)
godot.windows.tools.64.goost.exe!ResourceLoader::_load(const String & p_path, const String & p_original_path, const String & p_type_hint, bool p_no_cache, Error * r_error) Line 270 (d:\usr\src\godot\goostengine\goost\godot\core\io\resource_loader.cpp:270)
godot.windows.tools.64.goost.exe!ResourceLoader::load(const String & p_path, const String & p_type_hint, bool p_no_cache, Error * r_error) Line 402 (d:\usr\src\godot\goostengine\goost\godot\core\io\resource_loader.cpp:402)
godot.windows.tools.64.goost.exe!GDScriptFunctions::call(GDScriptFunctions::Function p_func, const Variant * * p_args, int p_arg_count, Variant & r_ret, Variant::CallError & r_error) Line 1064 (d:\usr\src\godot\goostengine\goost\godot\modules\gdscript\gdscript_functions.cpp:1064)
godot.windows.tools.64.goost.exe!GDScriptFunction::call(GDScriptInstance * p_instance, const Variant * * p_args, int p_argcount, Variant::CallError & r_err, GDScriptFunction::CallState * p_state) Line 1155 (d:\usr\src\godot\goostengine\goost\godot\modules\gdscript\gdscript_function.cpp:1155)
godot.windows.tools.64.goost.exe!GDScriptInstance::call(const StringName & p_method, const Variant * * p_args, int p_argcount, Variant::CallError & r_error) Line 1237 (d:\usr\src\godot\goostengine\goost\godot\modules\gdscript\gdscript.cpp:1237)
godot.windows.tools.64.goost.exe!Object::call(const StringName & p_method, const Variant * * p_args, int p_argcount, Variant::CallError & r_error) Line 901 (d:\usr\src\godot\goostengine\goost\godot\core\object.cpp:901)
godot.windows.tools.64.goost.exe!Variant::call_ptr(const StringName & p_method, const Variant * * p_args, int p_argcount, Variant * r_ret, Variant::CallError & r_error) Line 1128 (d:\usr\src\godot\goostengine\goost\godot\core\variant_call.cpp:1128)
godot.windows.tools.64.goost.exe!GDScriptFunction::call(GDScriptInstance * p_instance, const Variant * * p_args, int p_argcount, Variant::CallError & r_err, GDScriptFunction::CallState * p_state) Line 1086 (d:\usr\src\godot\goostengine\goost\godot\modules\gdscript\gdscript_function.cpp:1086)
godot.windows.tools.64.goost.exe!GDScriptInstance::call(const StringName & p_method, const Variant * * p_args, int p_argcount, Variant::CallError & r_error) Line 1237 (d:\usr\src\godot\goostengine\goost\godot\modules\gdscript\gdscript.cpp:1237)
godot.windows.tools.64.goost.exe!Object::call(const StringName & p_method, const Variant * * p_args, int p_argcount, Variant::CallError & r_error) Line 901 (d:\usr\src\godot\goostengine\goost\godot\core\object.cpp:901)
godot.windows.tools.64.goost.exe!Variant::call_ptr(const StringName & p_method, const Variant * * p_args, int p_argcount, Variant * r_ret, Variant::CallError & r_error) Line 1128 (d:\usr\src\godot\goostengine\goost\godot\core\variant_call.cpp:1128)
godot.windows.tools.64.goost.exe!GDScriptFunction::call(GDScriptInstance * p_instance, const Variant * * p_args, int p_argcount, Variant::CallError & r_err, GDScriptFunction::CallState * p_state) Line 1091 (d:\usr\src\godot\goostengine\goost\godot\modules\gdscript\gdscript_function.cpp:1091)
godot.windows.tools.64.goost.exe!GDScriptInstance::call(const StringName & p_method, const Variant * * p_args, int p_argcount, Variant::CallError & r_error) Line 1237 (d:\usr\src\godot\goostengine\goost\godot\modules\gdscript\gdscript.cpp:1237)

This seems to happen when GUT attempts to load test scripts dynamically (it collects them in a project before running).

Steps to reproduce:
This was detected in Goost while running C++ module tests using GDScript GUT addon.
Here's a log of the crash: https://github.com/goostengine/goost/runs/1160363688.

Minimal reproduction project:
Attempting to open the following project with the GUT addon should be enough to reproduce the crash:
gdscript-gut-load-crash.zip

The crash happened exactly when I created a new test script and finishing typing:

extends "res://addons/gut/test.gd"

[RandomShaper]

I'll look into this in a couple of hours.

[Relintai]

I just tried to update the engine in my project, and I can confirm. Every single one of my extends that extend other gdscript files crash.

My crash logs look a bit different though, I think it's because my project already had extends, and it crashes on launch. Nevermind, the line numbers are pretty much the same, I just haven't seen a windows crashlog in a while.

Godot version: 4bd1df8
OS/device including version: Linux

Dumping the backtrace. Please include this when reporting the bug on https://github.com/godotengine/godot/issues
[1] /usr/lib/libc.so.6(+0x3d6a0) [0x7f73f28c86a0] (??:0)
[2] ./engine/bin/run.godot.x11.opt.tools.64() [0xbb4469] (/home/relintai/Projects/broken_seals/engine/./core/map.h:614)
[3] ./engine/bin/run.godot.x11.opt.tools.64() [0xbac301] (/home/relintai/Projects/broken_seals/engine/modules/gdscript/gdscript_compiler.cpp:1883)
[4] ./engine/bin/run.godot.x11.opt.tools.64() [0xbae53b] (/home/relintai/Projects/broken_seals/engine/modules/gdscript/gdscript_compiler.cpp:2178 (discriminator 4))
[5] ./engine/bin/run.godot.x11.opt.tools.64() [0xb86c37] (/home/relintai/Projects/broken_seals/engine/modules/gdscript/gdscript.cpp:605)
[6] ./engine/bin/run.godot.x11.opt.tools.64() [0xb8c417] (/home/relintai/Projects/broken_seals/engine/modules/gdscript/gdscript.cpp:2307)
[7] ./engine/bin/run.godot.x11.opt.tools.64() [0x328c973] (/home/relintai/Projects/broken_seals/engine/./core/cowdata.h:377)
[8] ./engine/bin/run.godot.x11.opt.tools.64() [0x328fa3a] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:270)
[9] ./engine/bin/run.godot.x11.opt.tools.64() [0x2972f10] (/home/relintai/Projects/broken_seals/engine/scene/resources/resource_format_text.cpp:435)
[10] ./engine/bin/run.godot.x11.opt.tools.64() [0x328d632] (/home/relintai/Projects/broken_seals/engine/core/io/resource_loader.cpp:199)
[11] ./engine/bin/run.godot.x11.opt.tools.64() [0x328c973] (/home/relintai/Projects/broken_seals/engine/./core/cowdata.h:377)
[12] ./engine/bin/run.godot.x11.opt.tools.64() [0x328fa3a] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:270)
[13] ./engine/bin/run.godot.x11.opt.tools.64() [0x2972f10] (/home/relintai/Projects/broken_seals/engine/scene/resources/resource_format_text.cpp:435)
[14] ./engine/bin/run.godot.x11.opt.tools.64() [0x328d632] (/home/relintai/Projects/broken_seals/engine/core/io/resource_loader.cpp:199)
[15] ./engine/bin/run.godot.x11.opt.tools.64() [0x328c973] (/home/relintai/Projects/broken_seals/engine/./core/cowdata.h:377)
[16] ./engine/bin/run.godot.x11.opt.tools.64() [0x328fa3a] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:270)
[17] ./engine/bin/run.godot.x11.opt.tools.64() [0x2972f10] (/home/relintai/Projects/broken_seals/engine/scene/resources/resource_format_text.cpp:435)
[18] ./engine/bin/run.godot.x11.opt.tools.64() [0x328d632] (/home/relintai/Projects/broken_seals/engine/core/io/resource_loader.cpp:199)
[19] ./engine/bin/run.godot.x11.opt.tools.64() [0x328c973] (/home/relintai/Projects/broken_seals/engine/./core/cowdata.h:377)
[20] ./engine/bin/run.godot.x11.opt.tools.64() [0x328fa3a] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:270)
[21] ./engine/bin/run.godot.x11.opt.tools.64() [0x2972f10] (/home/relintai/Projects/broken_seals/engine/scene/resources/resource_format_text.cpp:435)
[22] ./engine/bin/run.godot.x11.opt.tools.64() [0x328d632] (/home/relintai/Projects/broken_seals/engine/core/io/resource_loader.cpp:199)
[23] ./engine/bin/run.godot.x11.opt.tools.64() [0x328c973] (/home/relintai/Projects/broken_seals/engine/./core/cowdata.h:377)
[24] ./engine/bin/run.godot.x11.opt.tools.64() [0x328fa3a] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:270)
[25] ./engine/bin/run.godot.x11.opt.tools.64() [0x2972f10] (/home/relintai/Projects/broken_seals/engine/scene/resources/resource_format_text.cpp:435)
[26] ./engine/bin/run.godot.x11.opt.tools.64() [0x328d632] (/home/relintai/Projects/broken_seals/engine/core/io/resource_loader.cpp:199)
[27] ./engine/bin/run.godot.x11.opt.tools.64() [0x328c973] (/home/relintai/Projects/broken_seals/engine/./core/cowdata.h:377)
[28] ./engine/bin/run.godot.x11.opt.tools.64() [0x328fa3a] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:270)
[29] ./engine/bin/run.godot.x11.opt.tools.64() [0x2972f10] (/home/relintai/Projects/broken_seals/engine/scene/resources/resource_format_text.cpp:435)
[30] ./engine/bin/run.godot.x11.opt.tools.64() [0x328d632] (/home/relintai/Projects/broken_seals/engine/core/io/resource_loader.cpp:199)
[31] ./engine/bin/run.godot.x11.opt.tools.64() [0x328c973] (/home/relintai/Projects/broken_seals/engine/./core/cowdata.h:377)
[32] ./engine/bin/run.godot.x11.opt.tools.64() [0x328fa3a] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:270)
[33] ./engine/bin/run.godot.x11.opt.tools.64() [0x2972f10] (/home/relintai/Projects/broken_seals/engine/scene/resources/resource_format_text.cpp:435)
[34] ./engine/bin/run.godot.x11.opt.tools.64() [0x328d632] (/home/relintai/Projects/broken_seals/engine/core/io/resource_loader.cpp:199)
[35] ./engine/bin/run.godot.x11.opt.tools.64() [0x328c973] (/home/relintai/Projects/broken_seals/engine/./core/cowdata.h:377)
[36] ./engine/bin/run.godot.x11.opt.tools.64() [0x328fa3a] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:270)
[37] ./engine/bin/run.godot.x11.opt.tools.64() [0x2972f10] (/home/relintai/Projects/broken_seals/engine/scene/resources/resource_format_text.cpp:435)
[38] ./engine/bin/run.godot.x11.opt.tools.64() [0x328d632] (/home/relintai/Projects/broken_seals/engine/core/io/resource_loader.cpp:199)
[39] ./engine/bin/run.godot.x11.opt.tools.64() [0x328c973] (/home/relintai/Projects/broken_seals/engine/./core/cowdata.h:377)
[40] ./engine/bin/run.godot.x11.opt.tools.64() [0x328fa3a] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:270)
[41] ./engine/bin/run.godot.x11.opt.tools.64() [0x2972f10] (/home/relintai/Projects/broken_seals/engine/scene/resources/resource_format_text.cpp:435)
[42] ./engine/bin/run.godot.x11.opt.tools.64() [0x328d632] (/home/relintai/Projects/broken_seals/engine/core/io/resource_loader.cpp:199)
[43] ./engine/bin/run.godot.x11.opt.tools.64() [0x328c973] (/home/relintai/Projects/broken_seals/engine/./core/cowdata.h:377)
[44] ./engine/bin/run.godot.x11.opt.tools.64() [0x328fa3a] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:270)
[45] ./engine/bin/run.godot.x11.opt.tools.64() [0x187c8f9] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:124)
[46] ./engine/bin/run.godot.x11.opt.tools.64() [0x187e2fd] (/home/relintai/Projects/broken_seals/engine/./core/cowdata.h:377)
[47] ./engine/bin/run.godot.x11.opt.tools.64() [0x187e57f] (/home/relintai/Projects/broken_seals/engine/./core/reference.h:277)
[48] ./engine/bin/run.godot.x11.opt.tools.64() [0x187e750] (/home/relintai/Projects/broken_seals/engine/editor/editor_node.cpp:802)
[49] ./engine/bin/run.godot.x11.opt.tools.64() [0x8d6325] (/home/relintai/Projects/broken_seals/engine/./core/variant.h:434)
[50] ./engine/bin/run.godot.x11.opt.tools.64() [0x3065d07] (/home/relintai/Projects/broken_seals/engine/core/object.cpp:922 (discriminator 1))
[51] ./engine/bin/run.godot.x11.opt.tools.64() [0x307248c] (/home/relintai/Projects/broken_seals/engine/./core/variant.h:434)
[52] ./engine/bin/run.godot.x11.opt.tools.64() [0x3073630] (/home/relintai/Projects/broken_seals/engine/core/object.cpp:1307)
[53] ./engine/bin/run.godot.x11.opt.tools.64() [0x18121cd] (/home/relintai/Projects/broken_seals/engine/editor/editor_file_system.cpp:1176 (discriminator 3))
[54] ./engine/bin/run.godot.x11.opt.tools.64() [0x30655e4] (/home/relintai/Projects/broken_seals/engine/core/object.cpp:934)
[55] ./engine/bin/run.godot.x11.opt.tools.64() [0x218e15a] (/home/relintai/Projects/broken_seals/engine/scene/main/scene_tree.cpp:989)
[56] ./engine/bin/run.godot.x11.opt.tools.64() [0x21985c0] (/home/relintai/Projects/broken_seals/engine/scene/main/scene_tree.cpp:525 (discriminator 3))
[57] ./engine/bin/run.godot.x11.opt.tools.64() [0x80431a] (/home/relintai/Projects/broken_seals/engine/main/main.cpp:2114)
[58] ./engine/bin/run.godot.x11.opt.tools.64() [0x7eacd1] (/home/relintai/Projects/broken_seals/engine/platform/x11/os_x11.cpp:3238)
[59] ./engine/bin/run.godot.x11.opt.tools.64(main+0xed) [0x7d903d] (/home/relintai/Projects/broken_seals/engine/platform/x11/godot_x11.cpp:56)
[60] /usr/lib/libc.so.6(__libc_start_main+0xf2) [0x7f73f28b3152] (??:0)
[61] ./engine/bin/run.godot.x11.opt.tools.64() [0x7dc13e] (??:?)
-- END OF BACKTRACE --

[akien-mga]

Fixed by #42323.