`tagof` default vars incredibly fragile

[Y-Less]

Issue description:

Minimal complete verifiable example (MCVE):

This works (tag is tagof (b:)):

Func({a, b, c}:arg, tag = tagof (arg))
{
}

main()
{
    Func(b:0);
}

This doesn't (tag is tagof (a:)):

Func({a, b, c}:arg, tag = _:tagof (arg))
{
}

main()
{
    Func(b:0);
}

Neither does this:

Func({a, b, c}:arg, tag = (tagof (arg)))
{
}

main()
{
    Func(b:0);
}

It seems that even the slightest change to the default tagof argument breaks its semantics entirely.

Workspace Information:

• Compiler version:
• Command line arguments provided (or sampctl version):
• Operating System:

[Daniel-Cortez]

Operator sizeof is breaking from the slightest changes in the same way and I already explained the cause of this bug in that issue. The potential way to fix this is also described there, although I'd say such fix would be very complicated.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity.