Nukem's Possible Manifestation


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    The JavaScript Modelling Framework (JSMF) has been designed for providing a flexible modelling environment that could support the many modelling situations: from informal model to code generation. It is a JavaScript embedded DSL inspired by the Eclipse Modelling Framework (EMF) in its basic functions but that rely on JavaScript dynamic typing and on a relative independence between a metamodel and a model.


    Thanks to npm: npm install jsmf-core

    Usage and Example

    In order to access the most commun JSMF elements use:

    const JSMF = require('jsmf-core')
          Model = JSMF.Model
          Class = JSMF.Class
          Enum = JSMF.Enum

    Creating a metamodel element (i.e., Class)

    Here we created a Class "Family" and a "lastname" attribute. This syntax is inspired by the EMF one.

    const Family = Class.newInstance('Family')
    Family.addAttribute('lastname' , String )

    Alternatively you can use a more compact syntax (here defining a Person Class) using javascript objects.

    const Person = Class.newInstance ('Person', [] ,
    { firstname : String , age : JSMF.Positive })

    Now we have the Class "Person" and "Family" let's create a reference between those two Classes.

    Family.addReference ('members', Person , JSMF.Cardinality.Some ) 

    Creating a model element conforms to a metamodel element.

    const john = new Person ()
    john . firstname = ’ John ’
    john . age = 46

    Alternatively you can also use a compact syntax:

    const kennedy = Family . newInstance ({ name : ’ Kennedy ’ ,
    members : [ john ]})

    You can find examples, discover the other components and test it online with Tonic on JSMF github website (

    License information

    See License.


    npm i jsmf-core

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