discourse/app/assets/javascripts/ember-addons/decorator-alias.js.es6

23 lines
655 B
JavaScript

import extractValue from "./utils/extract-value";
export default function decoratorAlias(fn, errorMessage) {
return function(...params) {
// determine if user called as @computed('blah', 'blah') or @computed
if (params.length === 0) {
throw new Error(errorMessage);
} else {
return function(target, key, desc) {
return {
enumerable: desc.enumerable,
configurable: desc.configurable,
writable: desc.writable,
initializer: function() {
var value = extractValue(desc);
return fn.apply(null, params.concat(value));
}
};
};
}
};
}