supertype v3.2.0
SuperType
Description
SuperType is a type system for JavaScript that supports:
Classical inheritence
Mixins
Composition including collections
Installation
Include lib/index.js
for use in the browser. Install on node via npm:
npm install supertype
It is automatically installed as a dependency for Amorphic
Example
Classes are defined as "templates".
ObjectTemplate = require('supertype');
Animal = ObjectTemplate.create("Animal",
{
name: {type: String},
isMammal: {type: Boolean, value: true},
legs: {type: Number, value: 2}
});
Lion = Animal.extend("Lion",
{
init: function () {
Animal.call(this);
this.name = "Lion";
this.legs = 4;
},
canRoar: function () {return true}
});
Bear = Animal.extend("Bear",
{
init: function () {
Animal.call(this);
this.name = "Bear";
},
canHug: function () {return true}
});
Ark = ObjectTemplate.create("Ark",
{
animals: {type: Array, of: Animal, value: []},
board: function (animal) {
animal.ark = this;
this.animals.push(animal)
}
});
Animal.mixin(
{
ark: {type: Ark}
});
You create objects using new
:
var ark1 = new Ark();
ark1.board(new Lion());
ark1.board(new Bear());
var ark2 = new Ark();
ark2.board(new Lion());
ark2.board(new Bear());
Because SuperType knows about the interrelationships between your objects you can serialize and de-serialize even though you have circular references:
var serialArk1 = ark1.toJSONString();
var serialArk2 = ark2.toJSONString();
ark1 = Ark.fromJSON(serialArk1);
ark2 = Ark.fromJSON(serialArk2);
License
SuperType is licensed under the MIT license
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