I have an application where I would like to perform some additional operations when a property of a handle class is changed. For this purpose I thought I would use a property set method. Unfortunately when I do this, and the property set function uses another of the object's methods to assign the property value, I get an infinite recursion.
The recursion can be avoided if all of the code leading up to the property assignment, along with the property assignment are all contained just in the property set method. This can make the property set method rather bulky though.
Is there is some way to assign the property in another of the object's methods without encountering the inifinite recursion?
Also, am I misunderstanding the documentiation, regarding the set functions not being called recursively, or is this a bug?
The behavior is illustrated in the two highly simplified examples below.
In this implementation where everything is self contained in the set.a method everything works fine
h = myclassAlt
h =
myclassAlt with properties:
a: []
h.a = 3
h =
myclassAlt with properties:
a: 3
But here, where the property a is assigned indirectly set.a uses the object's method assignVal to do the acutal assignment, we get an infinite recursion (until it runs out of memory)
h = myclass
h =
myclass with properties:
a: []
h.a = 3
Out of memory. The likely cause is an infinite recursion within the program.
Error in myclass/assignVal (line 15)
obj.a = aClipped;
