Pre-Specialize Generic Functions

[MMarie]

I just stumbled upon https://forum.lazarus.freepascal.org/index.php?topic=61648.0

Whilst trying to find out if I could pre-specialize generic functions that I use quite a lot. Im wondering if some kind of specialize-once mechanism for functions/procedures are planned or if anything speaks against such a thing.

I did also see the suggestion to use some little macros, but this doesn't work for me since I'd want the pre-specializations to be accesible from other units. Defining wrappers would be an option, but since the generic function itself is so short (its a function to emulate ternary-operators) I might as well not rely on generics.

[PascalDragon]

Whilst trying to find out if I could pre-specialize generic functions that I use quite a lot. Im wondering if some kind of specialize-once mechanism for functions/procedures are planned or if anything speaks against such a thing.

No, something like that is not planned.

[Khrys]

I think implicit specialization might provide the same ergonomics:

Code: Pascal  [Select][+][-]

1. {$modeswitch implicitfunctionspecialization}
2.  
3. Assert(2026 = IfThen(2 + 2 = 5, 1984, 2026));
4. Assert('yeah' = IfThen(True, 'yeah', 'nope'));

[jamie]

OR if they ever release the Trunk which I believe they were or did implement a real ifthen you can do this instead.

Code: Pascal  [Select][+][-]

1. SomeItem := If someCondition then resultTrue else ResultFalse;
2.  
3.  

That generates a real ifthen.

jamie