Class syntax in AutoIt

[genius257]

I've made a transpiler for converting AutoIt-like class syntax into AutoIt code.

GIthub: https://github.com/genius257/au3class/

Example for the syntax:

#include-once

Class Example
    $property = Null

    Func __construct($ts = 'now')
        $this.property = 0
    EndFunc

    Func __destruct()
        ; Destructor code here.
    EndFunc

    Func method()
        Return "something"
    EndFunc

    Get Func dynamic()
        Return $this.dynamic & $this.property
    EndFunc

    Set Func dynamic($value)
        $this.property += 1
        $this.dynamic = $value
    EndFunc
EndClass

$oExample = Example()

$oExample.dynamic = 12

MsgBox(0, "", $oExample.dynamic)

MsgBox(0, "", $oExample.method())

$oExample = Null

• class properties are defined as variables within the Class structure
• class methods are defined as function declarations within the Class structure
• property getters and setters need to have Get or Set in front of their function declaration
  • Getter and setter can access their own underlying property, without triggering the getter or setter for said variable.

Version 2 produces more code than version 1, but does not need any other scripts included to work.

Version 2 is also faster than version 1, since version 2 creates specific code for looking up class members, instead of relying on AutoItObject_Internal with it's dynamic properties lookup.

See the example folder on Github for building and using this: https://github.com/genius257/au3class/tree/master/Example

 

[Gianni]

Hi @genius257

Just a small oversight: I tried to "build" example.au3 from example.au3p using build.au3
the output file produced contains this little "flaw":

If $pObj=0 Then Return $__AOI_E_POINTER
"C:\Temp\au3class-master\Example\Example.au3"(30,40) : warning: $__AOI_E_POINTER: possibly used before declaration.
If $pObj=0 Then Return $__AOI_E_POINTER
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"C:\Temp\au3class-master\Example\Example.au3"(30,40) : error: $__AOI_E_POINTER: undeclared global variable.
If $pObj=0 Then Return $__AOI_E_POINTER
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^

apart from this the created "object" works correctly.

[genius257]

Hi @Gianni 

You are right, that is indeed an oversight, thanks for telling me

The issue has been fixed on the master branch now, but I'll wait a day or two before creating a new release, to verify no more small mistakes appear