| 1 |
|
| 2 | //
|
| 3 | // # IperElement
|
| 4 | //
|
| 5 | // Base class for *iper*.
|
| 6 | //
|
| 7 |
|
| 8 | var _ = require('underscore')
|
| 9 |
|
| 10 | //
|
| 11 | // ## Constructor
|
| 12 | //
|
| 13 | // Do not use *IperElement* directly, it is used internally by *iper* as a base class.
|
| 14 | //
|
| 15 | // If `this` refers to an *iper* class instance
|
| 16 | //
|
| 17 | // ```
|
| 18 | // IperElement.call(this, graph)
|
| 19 | // ```
|
| 20 | //
|
| 21 |
|
| 22 | function IperElement (graph) {
|
| 23 |
|
| 24 | //
|
| 25 | // ## Attributes
|
| 26 | //
|
| 27 |
|
| 28 | //
|
| 29 | // ### graph
|
| 30 | //
|
| 31 | // References the graph containing the element.
|
| 32 | //
|
| 33 |
|
| 34 | /* check graph */
|
| 35 |
|
| 36 | if (_.isUndefined(graph))
|
| 37 | throw new Error('graph is not defined')
|
| 38 |
|
| 39 | Object.defineProperty(this, 'graph', {
|
| 40 | enumerable: false,
|
| 41 | value: graph,
|
| 42 | writable: false
|
| 43 | })
|
| 44 |
|
| 45 | //
|
| 46 | // ### id
|
| 47 | //
|
| 48 | // Every IperElement has a unique id.
|
| 49 | //
|
| 50 |
|
| 51 | Object.defineProperty(this, 'id', {
|
| 52 | enumerable: true,
|
| 53 | value: _.uniqueId(),
|
| 54 | writable: false
|
| 55 | })
|
| 56 | }
|
| 57 |
|
| 58 | module.exports = IperElement
|
| 59 |
|