Book Image

haXe 2 Beginner's Guide

5 (1)
Book Image

haXe 2 Beginner's Guide

5 (1)

Overview of this book

Table of Contents (21 chapters)
haxe 2
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Anonymous objects


Anonymous objects are objects that are of an unnamed type ("Anonymous Type"). They are made of a list of fields and their associated values. For example, here is how we can create one:

var obj = {id : 1, name : "Benjamin"};

Although the type of this object doesn't have a name, obj is still fully typed as {id :Int, name : String}. This is an anonymous type.

This is sometimes useful, if there is a type that you are not going to use a lot of time. By the way, this variable could be declared this way:

var obj : {id : Int, name : String};

Duck typing

Duck typing makes reference to an old cliché of "if it walks and talks like a duck, then it's a duck". In fact, we can use anonymous types to say that we want something that has at least some fields.

The following is an example:

class TestAnonymous
{
   public var name : String;
   public function new(name : String)
   {
      this.name = name;
   }
   public static function main(): Void
   {
      var m;
      sayHello(new TestAnonymous...