Haxe Code Cookbook

Abstract types

Overview of Haxe abstract types snippets and tutorials.

  • A common pattern, often found in (but not only in) dynamic languages, is to denote the type of some object with a string, for example:‥

  • The following example demonstrates how a color type can be abstracted over an integer, which stores the color in an ARGB format.‥

  • The following EmailAddress Abstract type example is based on the underlying standard String type, but sets the restriction that it can only represent a valid email address. If not, an exception will be thrown.‥

  • This abstract type is based on the underlying Float type, but whenever it is converted back to an actual Float it is rounded to avoid the famous rounding errors occuring in floating point aritmetics.‥

  • The following Celcius and Fahrenheit Abstract types are based on the underlying Float type, but sets the restriction that it can never hold values below absolute zero. ‥