Constructor can not call the constructor of the class it inherits from

bgrommes

I believe this is new in 26.10.5.

I had class StringMemoryTableColumn inheriting from MemoryTableColumn -- both take the same argument. I had it called its parent's constructor via:

Super.MemoryTableColumn(parentCollection)

This particular code wasn't tested yet but it didn't make the compiler cry until I triggered a recompile just after installing 26.10.5 (I skipped 26.10.4).

The error is:
Type 'MemoryTableColumn' has no member 'MemoryTableColumn'.

It's happy if I remove "Super.". Is this an intended change? If yes, then the error message could be clearer.

Garry

The correct syntax is:

Super.Constructor(parentCollection)

Super.MemoryTableColumn(...) tries to call a method named MemoryTableColumn on the parent class. The newer superclass validation catches this missing method, which explains why you started seeing the error after updating. The constructor syntax itself hasn't changed.

Removing Super. won't initialise the parent: MemoryTableColumn(parentCollection) is interpreted as a cast, rather than a constructor call.

I agree the error could be more helpful here by suggesting Super.Constructor(...): https://feedback.objo.dev/feature/1929

bgrommes

Garry Gotcha! Thanks for the explanation.