Timer crash

rgb

Summary

Objo Studio Version

26.5.3

Operating System

macOS

Steps To Reproduce

create projet
add nb properties type integer to window1
add a timer
add event "Tick" for timer1
hit this text:
nb = nb + 1

Self.Title = "timer " + nb.ToString()

If nb > 5 Then

Self.Timer1.Stop()

End If

Expected Result

Actual Result

run prog, when timer count > 5, try stop timer and crash

Screenshots, Logs, Or Sample Project

Garry

Investigating now: https://feedback.objo.dev/bug/106

Garry

This was a bug in an optimisation I had added to the VM. It's fixed now for the next release.

The compiler was emitting fast field-slot bytecode for Window1.Timer1 even when Window1 inherited from a VM-registered built-in class (Window). The compiler did not know the built-in superclass runtime field layout, so Self.Timer1 read the wrong slot and tried to call Stop() on a non-instance value.