31 lines
1.0 KiB
JavaScript
31 lines
1.0 KiB
JavaScript
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// In order to test this interface implementation run jsc interface.js
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export default class Interface {
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// Abstract interface that should be extended in interface subclasses.
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// By convention all interfaces should start with an upper 'I'
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static implementationError(klass) {
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let interfaceKeys = Reflect.ownKeys(this.prototype)
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let classKeys = Reflect.ownKeys(klass.prototype)
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for(let key of interfaceKeys) {
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let interfaceDesc = this.prototype[key]
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let classDesc = klass.prototype[key]
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if (typeof(classDesc) == 'undefined')
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return 'Missing ' + key
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}
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return null
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}
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static implementedBy(klass) {
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// In the first step only checks whether the methods of this
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// interface are all implemented by the given class
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let error = this.implementationError(klass)
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return error == null
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}
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// TODO: Specify optional methods
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// static optionalMethods() {
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// return [this.onMouseWheel]
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// }
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}
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