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Does an object initialize automatically if it is the synthesized property of another object?


Does an object initialize automatically if it is the synthesized property of another object?

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Does an object initialize automatically if it is the synthesized property of another object?
Tag : objective-c , By : Ike
Date : November 25 2020, 07:06 PM


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VB.NET - Automatically initialize extended property of type Object


Tag : vb.net , By : Diego
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , You must instantiate the field that backs your MyDTOItem property before attempting to set property values on it. You don't get to cheat and not instatiate an object before you start messing with its members.
Example:
Private backingField As DataType = New DataType  ' Create backing field and initialize it

Public Property forwardFacingProperty As DataType
Get
  Return backingField
End Get
Set (byval tValue as DataType)
  backingField = tValue
End Set
End Property

RestKit model object raises -valueForUndefinedKey: for a synthesized property


Tag : objective-c , By : unfool
Date : March 29 2020, 07:55 AM
I wish this help you The @dynamic directive you're using in your implementation tells the compiler to not generate the methods for that property. Since these methods are not present, your class isn't key-value compliant for those keys. (i.e. RestKit is trying to call the uid method, but it doesn't exist.)
You should either:

Initialize object property with use other properties of same object


Tag : javascript , By : artifex
Date : March 29 2020, 07:55 AM
will help you I am newbie in JS. And my question is: How I can pretty initialize object property with use other properties of same object. , During Object literal declaration you have to use the full reference:
var myObject = {
    par1 : 2*2,
    par2 : myObject.par1
};

Automatically initialize object in Scala


Tag : scala , By : Naveen
Date : March 29 2020, 07:55 AM
Hope this helps If you run this simple code, you will see the following: , I have found the solution:
Usage:
object A {
  println("from A")
  var x = 0
}

@init
object B {
  println("from B")
  A.x = 1
}

@init
object C {
  println("from C")
  A.x = 2
}

object Test extends App {
  init()
  println(A.x)
}
from B
from A
from C
2
class init extends StaticAnnotation {
  def macroTransform(annottees: Any*) = macro init.impl
}

object init {
  private val objFullNames = new mutable.MutableList[String]()

  def impl(c: whitebox.Context)(annottees: c.Expr[Any]*): c.Expr[Any] = {
    import c.universe._

    annottees.map(_.tree).toList match {
      case (obj: ModuleDef) :: Nil =>
        objFullNames += c.typecheck(obj).symbol.fullName
      case _ =>
        c.error(c.enclosingPosition, "@init annotation supports only objects")
    }

    annottees.head
  }

  def apply() = macro runImpl

  def runImpl(c: whitebox.Context)(): c.Expr[Any] = {
    import c.universe._
    val expr = objFullNames.map(name => q"${c.parse(name)}.##").toList
    val res = q"{..$expr}"
    c.Expr(res)
  }
}

want initialize function get called automatically when object is used


Tag : javascript , By : jumpingmattflash
Date : March 29 2020, 07:55 AM
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