enum

Overview of Haxe code snippets, examples and tutorials tagged with enum.

• Feb 12, 2018 Functional Programming / ML-Style Parse Tree Evaluation

   functional programming adt enum parsing

  ML-like languages are great for creating interpreters or compilers, by virtue of Algebraic Data Types. Haxe's enum allow for writing similarly elegant code.‥

• Jan 03, 2017 Functional Programming / Enums as GADTs

   enum pattern-matching functional-programming

  As already established Haxe enums are a form of algebraic data types. In fact, they may even serve as so called generalized algebraic data types - GADTs for short. While for an ordinary enum every constructor yields the same type, with an GADT each constructor may yield a different type. ‥

• Jun 16, 2016 Other / Passing different types to a function parameter

   enum abstract-type pattern-matching type-parameter type-parameter-constraint

  Sometimes you find yourself in the need of passing different types to the same parameter of a function. While there isn't a built-in way of doing this in Haxe, thanks to its flexible type system, we can solve this problem. We will explore two ways to achieve this.‥

• Mar 25, 2016 Macros / Get all values of an @:enum abstract

   enum expression-macro

  The following macro function returns an array of all possible values of a given @:enum abstract type. Since it's not possible in runtime (because abstracts doesn't exist there), we need to use a macro for that.‥

• Mar 29, 2016 Macros / Extract values from known enum instances

   enum pattern-matching expression-macro

  Sometimes we have an instance of enum that is of known constructor (or we only accept that constructor) and we want to extract values from that instance. Normally, to do this, we have to use pattern matching (switch), however it's quite verbose, so we can instead use this macro static extension method that will generate switch for us.‥

• Dec 14, 2016 Macros / Extract values with pattern matching

   enum pattern-matching macro-function

  Mostly useful to extract enum values from known enum instances. Allows to extract multiple variables at once. Takes most of expressions that are possible to use in switch expression.‥

• Oct 30, 2016 Beginner / Using enum / ADT

   enum data-structures

  Haxe's enumeration types are algebraic data types. Their primary use is for describing data structures.‥

• Aug 31, 2017 Beginner / Pattern matching

   enum pattern-matching data-structures

  This article helps to learn pattern matching and all of its type of matching in practice. The article covers basic matching, variable capture, guards, extractors and enum/structure matching.‥