ZDoom

Thanks

This is marked as a duplicate, but I can't find the original report, so I'll use this one instead.
[url=https://github.com/coelckers/gzdoom/pull/784]I made a pull request to fix this bug[/url].

No, it was not fixed because ideally both file should do the same.

Retested on the same computer, Windows 10 Home updated to 1709 16299.334, 32-bit to GZDoom 3.4pre-50-g3dd7f17de, 64-bit to GZDoom 3.4pre-55-g80f57dfaf (latest on DRD Team at time of testing).

I don't know ZScript specs by heart, so I don't know if this is a bug being completely fixed, it is however a definite improvement. Both "bad" versions error out with "Script error, "bad.pk3:zscript.txt" line 14:", "Internal error when generating code for array access". Please state whether this is an example of expected behavior (what I would expect first would be mostly identical behavior to the "good" file, but, again, this is no crash at least). The testing file was not changed.

Does this issue still persist?

version "2.5"

class Foo : Object {
	Array<int> fu;
}

class Bar : ZombieMan replaces ZombieMan {
	Array<Foo> bru;
	States {
		Spawn:
			TNT1 A 0 NoDelay {
				bru.push(new('Foo'));
				let hq = bru[0];
				hq.fu.push(4);
				hq.fu[0] = hq.fu.size();
			}
			goto Super::Spawn;
	}
}

version "2.5"

class Foo : Object {
	Array<int> fu;
}

class Bar : ZombieMan replaces ZombieMan {
	Array<Foo> bru;
	States {
		Spawn:
			TNT1 A 0 NoDelay {
				bru.push(new('Foo'));
				bru[0].fu.push(4);
				bru[0].fu[0] = bru[0].fu.size();
			}
			goto Super::Spawn;
	}
}

Tested on 3.2-pre557 on Windows 10 Home 1703 15063.608, 64-bit and 32-bit. The "bad" version crashes before menu with report request. A very similar "good" version doesn't. A crash report is generated (attached is 64-bit version).

"Good" code:
[code]version "2.5"

class Foo : Object {
Array<int> fu;
}

class Bar : ZombieMan replaces ZombieMan {
Array<Foo> bru;
States {
Spawn:
TNT1 A 0 NoDelay {
bru.push(new('Foo'));
let hq = bru[0];
hq.fu.push(4);
hq.fu[0] = hq.fu.size();
}
goto Super::Spawn;
}
}[/code]

"Bad" code:
[code]version "2.5"

class Foo : Object {
Array<int> fu;
}

class Bar : ZombieMan replaces ZombieMan {
Array<Foo> bru;
States {
Spawn:
TNT1 A 0 NoDelay {
bru.push(new('Foo'));
bru[0].fu.push(4);
bru[0].fu[0] = bru[0].fu.size();
}
goto Super::Spawn;
}
}[/code]