0000132: ZScript VM doesn't seem to initialize scripted fields in subclasses properly

ID	Project	Category	View Status	Date Submitted	Last Update

0000132	Gameplay + OpenGL	[All Projects] Bug	public	2017-01-27 23:54	2017-01-29 11:29

Reporter	ZZYZX
Assigned To	Graf Zahl
Priority	low	Severity	crash	Reproducibility	always
Status	resolved	Resolution	fixed

Summary	0000132: ZScript VM doesn't seem to initialize scripted fields in subclasses properly
Description	Basically, I have a native class defined in these files https://github.com/jewalky/gzdoom/blob/thereisnospoon/src/events.h https://github.com/jewalky/gzdoom/blob/thereisnospoon/src/events.cpp https://github.com/jewalky/gzdoom/blob/thereisnospoon/wadsrc/static/zscript/events.txt Then I create a subclass, for example like this: http://pastebin.com/6XpEE33W The field "myS" is never initialized to a proper string: when trying to access it, then in debug mode, it's 00000000 (assertion failed: Chars != null), and in release mode it just crashes to desktop. Is this a problem with my code or with GZDoom? Note: providing a struct there, e.g. like this http://pastebin.com/WNWMZyLT, does not crash. Also, if I do this in Actor, it seems to work alright (i.e. inheriting actor and putting a string field in it works). Made a bug because otherwise Graf keeps forgetting.
Tags	No tags attached.

ZZYZX 2017-01-27 23:56 reporter ~0000263	Struct link: http://pastebin.com/WNWMZyLT Broke in the bug.

Graf Zahl 2017-01-29 05:34 administrator ~0000273	Do you have a complete, ready to test, example for this? I am still trying to wrap my head around these fragments.

ZZYZX 2017-01-29 06:49 reporter ~0000277	Make a build of https://github.com/jewalky/gzdoom/tree/thereisnospoon Then take this pk3 and run it, it will crash upon entering the map. crash.pk3 (669 bytes)

Date Modified	Username	Field	Change
2017-01-27 23:54	ZZYZX	New Issue
2017-01-27 23:56	ZZYZX	Note Added: 0000263
2017-01-29 05:34	Graf Zahl	Note Added: 0000273
2017-01-29 05:50	Graf Zahl	Assigned To	=> Graf Zahl
2017-01-29 05:50	Graf Zahl	Status	new => feedback
2017-01-29 06:49	ZZYZX	File Added: crash.pk3
2017-01-29 06:49	ZZYZX	Note Added: 0000277
2017-01-29 06:49	ZZYZX	Status	feedback => assigned
2017-01-29 11:29	Graf Zahl	Status	assigned => resolved
2017-01-29 11:29	Graf Zahl	Resolution	open => fixed