List & Nodes

Monkey Forums/Monkey Programming/List & Nodes

degac

(Posted 2011) [#1]

Ok, I'm stuck with this thing

Strict
Import mojo

Function Main:Int()
	Local app := New MyApp
		Return 0
End

Class type
	Field value:String
	Field name:String
	Field mylink:Node<type>
	
	Method New(_na:String,_va:String)
		Self.name=_na
		Self.value=_va
	End
End 

Class MyApp Extends App

	Global list:=New List<type>

	Method OnCreate:Int()
		Local s:type
		For Local i:Int=1 To 10
			s=New type("Name "+String(i),String(i))
			s.mylink=list.AddLast(s)
		Next
			Return 0
	End 
	
	Method OnUpdate:Int()
	Return 0
	End
	
	Method OnRender:Int()
		Return 0
	End

End

I get the error

Compiler error: Duplicate identifier 'Node' found in module 'map' and module 'list'.

the method AddLast return a 'Node' object so what's wrong?

Warpy

(Posted 2011) [#2]

Ooerr, that's not good! It's a namespace problem: the class Node is defined in both std.list and std.map, so you need to say which one you want.

Do that by writing

Field mylink:list.Node<type>

therevills

(Posted 2011) [#3]

What are nodes used for?

degac

(Posted 2011) [#4]

Thanks Warpy! Another thing learned...

@therevills:
They are the equivalent of BlitzMax's LINKS: they are the 'link' (or the node) to an object in a list

Xaron

(Posted 2011) [#5]

Shouldn't be Monkey aware of that? I mean Node is defined in both list and map BUT it has only one template parameter in list and two parameters in map so Monkey should be able to distinguish between them without the need to add the namespace?

marksibly

(Posted 2011) [#6]

Hi,

> Shouldn't be Monkey aware of that?

No, symbols in imported modules are only 'auto imported' if there are NO duplicates.

You can use the new Alias to deal with this too:

Alias Node=list.Node

...or even...

Alias MapNode=map.Node
Alias ListNode=list.Node

...at the top of your code.

Xaron

(Posted 2011) [#7]

Ah alright, thanks for that Mark.