Constructor and Destructor for Types

After looking through the documentation and searching the forum i am still not sure.

Is it true that BM does not have some kind of destructor and constructor which is automatically called when creating a type.

I mean something like classes in C++ have.

If so it would be nice to have them like a
OnCreate and OnDestroy function for every type. So that this functions are automatically called when a type is created with new or when a type is destroyed by the garbagecollector.

Mirko

PS: OK, the OnCreate can be called by my programm after it creates a type using new, but the OnDestroy should occure when the type is killed by the gb, as i might not know how long the type is used. Still, having both would be nice.

Those do exist, but you have to declare them and you'll have to specify what they should do when they are created/destroyed:

Type test
	Method New() ' Constructor method
		Print "Hey, you've just created a new test-instance"
	End Method

	Method Delete() ' Destructor method
		Print "You've just destroyed a test-instance"
	End Method
End Type

a:test = New test ' Create a new instance of "test"

a = Null ' Set "a" to point to nothing (so it can be destroyed at the next FlushMem)
FlushMem ' Destroy all unreferenced objects

On destroy can be don with a Delete method automatically caled by the gc.

A few things to note: you can't have arguments in the 'constructor' (it's not really a constructor, in my opinion), and you can't call the destructor. Or you shouldn't be able to, anyways.

If you want to have a pseudo-constructor, create a static function in the class and call it Create, that way it's pretty obvious what it does. For example, my entity classes have a static function Spawn that, well, spawns one of them at a given point.

Probably already knew that, but I figured I'd mention it.

Hey, thanx to all of you. I did not know that.
Is it documentet somewhere or how do you know about New and Delete Methods?

It's under the language reference for user defined types.