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sheetaloza
Visitor

singleton into global scope

I am trying to add singleton object into globalScope to use it across the app (scene graph). While adding object into globalScope I can see that it is only doing shallow copy but deep copy. My object looks like this

I have created global variable in main.brs

And then initializing this singleton Object in first (parent) scene.

if m.global.singletonObject = invalid then
  singletonObject = {
      init: function()
        m.counter = 0
        m.childObject = invalid
      end function

      doSomething: function()
        print "doing something"
      end function
  }


  singletonObject.init()

  print singletonObject  
  m.global.addFields({"singletonObject": singletonObject})

 'after adding everything in the global scope, all the prop and function of singletonObject are invalid. 
 print m.global.singletonObject
end if
  return m.global.singletonObject

NOTE: I can access property values but not the functions. Function defined in the singleton object are treated as properties and underlying structure is NEVER copied.
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1 REPLY 1
EnTerr
Roku Guru

Re: singleton into global scope

True to form - node field assignments get deep copied and Brightscript first-class functions are NOT supported by Roku scenography. 

See also https://forums.roku.com/viewtopic.php?f=34&t=95412
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