AhkV1: Is possible to create a class with constructor overloads?

Question

For example if I have a class that constructs a Timecode object, I would like to sometimes initialise a instance by just providing a value for a single parameter (frameCount) and other times provide more than one parameter such as frameCount and frameRate.

Here is what I tried:

obj := new timecode(2)          ;Default to using 12 frames per second
print(obj)                          ;prints ---> {"frameCount": 24, "framerate": 12}
obj := new timecode(2, 24)  ;Use the provided frame rate 
print(obj)                          ;prints ---> {"frameCount": 48, "framerate": 24}


class timecode
{
    __New(frames)
        {
            this.frameCount := frames * 12
            this.framerate := 12
        }
    __New(frames, framerate)
        {
            this.frameCount := frames * framerate
            this.framerate := framerate
        }
}

but the above just throws an error:

 ==> Duplicate declaration.
     Specifically: __New
AutoHotkey closed for the following exit code: 2

I know that V1 is as dead as latin, and V2 classes are much better now but until the library porting for V2 catches up, I will be on V1.

Any help would be greatly appreciated!

Answer 1

To my knowledge, there is no direct way to create a class with constructor overloads. A good indirect way that may work is the following:

; Define a struct to hold the properties of your "class"
MyClass := {}

; Define a function to act as the constructor
MyClass_New(name := "", age := 0) {
    ; Initialize a new instance of the class
    local obj := {}
    
    ; Set the properties based on the arguments passed to the constructor
    obj.name := name
    obj.age := age
    
    ; Return the instance
    return obj
}

; Usage:
obj1 := MyClass_New("John", 30)
obj2 := MyClass_New("Jane")

EDIT: I seemed to misunderstand your question. Here is how I would get around constructor overloading:

class timecode
{
    __New(frames, framerate := 12)
    {
        if (IsObject(framerate))
        {
            ; If framerate is provided as an object, assume it's the options object
            this.frameCount := frames * (framerate.framerate ? framerate.framerate : 12)
            this.framerate := framerate.framerate ? framerate.framerate : 12
        }
        else
        {
            ; If framerate is provided as a separate parameter
            this.frameCount := frames * framerate
            this.framerate := framerate
        }
    }
}

obj := new timecode(2)          ; Default to using 12 frames per second
MsgBox % "Frame Count: " obj.frameCount ", Frame Rate: " obj.framerate

options := { framerate: 24 }
obj := new timecode(2, options) ; Use the provided frame rate 
MsgBox % "Frame Count: " obj.frameCount ", Frame Rate: " obj.framerate