Component may not work when added to a function call

[ohmtal]

Describe the bug
When working on ElfScript i found out, that using a component field attached to a function call does not work. I checked the current Torque3D source and I'm sure there is the same behavior. Was not able to test it, because the current Torque3D does not build on Linux (assimp/code/Common/ZipArchiveIOSystem.cpp:57:14: fatal error: unzip.h: No such file or directory)

To Reproduce

function foo() { return "1 2 3"; }
echo(foo().x); // should return 1 but is empty 

$obj = new ScriptObject() { class = "TestClass"; };
function  TestClass::foo() { return "1 2 3"; }
echo($obj.foo().x); // return the object ID ($obj) not 1 

If both are working fine on Torque3D forget this post ;)

Expected behavior
Also function calls with component should return the correct value.

Screenshots

• not available -

System Info (please complete the following information as applicable):

• OS: [Arch Linux]
• Engine Version [current from github repo]

Additional context
As i said, i can't test it with Torque3D and did only read the Sources. My fix in ElfScript was:
1.) At the end of OP_CALLFUNC i did set the Script::gEvalState.currentVariable = nullptr;
2.) in getFieldComponent i use the current stack as result stack , but this require, that getFieldComponent know the current stack string - i looked at old sources - this was the default fallback when no obj and field are there

[ohmtal]

@2.) in getFieldComponent i use the current stack as result stack , but this require, that getFieldComponent know the current stack string - i looked at old sources - this was the default fallback when no obj and field are there

==> meant when nothing else is found if (prevVal && *prevVal)

[Azaezel]

Issue verified as an expansion flaw:
==>function foo() { return "1 2 3"; } echo(foo().x);

==>function foo() { return "1 2 3"; } echo(foo().x);

==>$obj = new ScriptObject() { class = "TestClass"; }; function TestClass::foo() { return "1 2 3"; } echo($obj.foo().x);

==>echo($obj.foo().x);

==>$var = $obj.foo(); echo($var.x);
1
==>$vaar = foo().x; echo($vaar);

==>$vaar = foo(); echo($vaar.x);
1
==>$vaar = foo(); echo($vaar.y);
2

[Azaezel]

Prelim's up #1823. Can you elaborate further on what issue you're having Nix side? That's typically coming from standard zlib, and CI compiles, so I'd be curious what the difference is on that front.

[ohmtal]

Prelim's up #1823. Can you elaborate further on what issue you're having Nix side? That's typically coming from standard zlib, and CI compiles, so I'd be curious what the difference is on that front.

I will test it on my Workstation when I can. I work on an old ThinkPad - so the build test is not so funny ;) I did also tested to set ASSIMP with zlib then i had configure errors and gave up on that. Minizip is installed so it should find it.