Get All Objects

BlitzMax Forums/BlitzMax Programming/Get All Objects

BLaBZ

(Posted 2013) [#1]

Is it possible to get all instantiated objects? I was thinking I might be able to do this via reflection but I'm not finding a way.

Thanks!

Blueapples

(Posted 2013) [#2]

This was one of the features of Blitz3D that didn't make it into BlitzMax, so it's something that I figured out how to do when I first started with BM as I find it easier to do certain types of things this way as well.

Unfortunately I don't have an answer if you want to do this with built in types / objects returned by BlitzMax internal functions, but you can do it for your own types.

Basically you can do this for types that you write by just adding them to a static list - you can create this type as a base type and extend all your types from it:

Type TCustomBaseType
	Global list:TList = CreateList()
	
	Method New()
		ListAddLast(TCustomBaseType.List, Self)
	EndMethod

	Method DoSomething()
		Print "TCustomBaseType.DoSomething - this shouldn't get called because it is hidden by subtypes"
	EndMethod

EndType

Type TType1 Extends TCustomBaseType
	Method DoSomething()
		Print "TType1.DoSomething"
	EndMethod
EndType


Type TType2 Extends TCustomBaseType
	Method DoSomething()
		Print "TType2.DoSomething"
	EndMethod
EndType

' Make a few objects
New TType1
New TType2
New TType1

' Loop over all the objects
Local item:TCustomBaseType
For item = EachIn TCustomBaseType.list
	item.DoSomething()
Next

ziggy

(Posted 2013) [#3]

Is it possible to get all instantiated objects?

What for? It's something weird to do unless you're trying to build a debugger or the like