Create object that inherit from Record<T> crashes on iOS on Language-Ext versions later than 3.1.24

I have observed, that every version later than 3.1.24 causes a crash on iOS, when creating an object that inherits from Record<T>.

I’ve created a simple project to illustrate this issue here: https://github.com/1iveowl/Language-Ext-Issue-Recreate.

Run the iOS project on a real device and press the button number 1 , and you will get a SIGSEGV native crash from the line var objA = new ObjectA<object>(new object());.

ObjectA is defined as:

public sealed class ObjectA<T> : Record<ObjectA<T>>
    {
        public T Obj { get; }

        public ObjectA(T obj)
        {
            Obj = obj;
        }
    }

In the project I use Language-Ext version 3.3.20. If I change the project to use Language-Ext version 3.1.24 then the crash will no longer occur.

Note: I’ve only seen the issue on a real iOS device. If I run the project in the simulator I do not see a crash.

Might be related to #633

[1iveowl]

@bender2k14 fair point.

[1iveowl]

Making sure that the linker works its magic on LanguageExt.Core fixed the issue as outlined here: https://github.com/louthy/language-ext/issues/537#issuecomment-451542942

It seems that this could very well be the explanation: https://github.com/louthy/language-ext/issues/537#issuecomment-460711504.