Current File : /home/ugotscom/.trash/karetakers/node_modules/vue-class-component/lib/data.js
import Vue from 'vue';
import { warn } from './util';
export function collectDataFromConstructor(vm, Component) {
// override _init to prevent to init as Vue instance
const originalInit = Component.prototype._init;
Component.prototype._init = function () {
// proxy to actual vm
const keys = Object.getOwnPropertyNames(vm);
// 2.2.0 compat (props are no longer exposed as self properties)
if (vm.$options.props) {
for (const key in vm.$options.props) {
if (!vm.hasOwnProperty(key)) {
keys.push(key);
}
}
}
keys.forEach(key => {
Object.defineProperty(this, key, {
get: () => vm[key],
set: value => { vm[key] = value; },
configurable: true
});
});
};
// should be acquired class property values
const data = new Component();
// restore original _init to avoid memory leak (#209)
Component.prototype._init = originalInit;
// create plain data object
const plainData = {};
Object.keys(data).forEach(key => {
if (data[key] !== undefined) {
plainData[key] = data[key];
}
});
if (process.env.NODE_ENV !== 'production') {
if (!(Component.prototype instanceof Vue) && Object.keys(plainData).length > 0) {
warn('Component class must inherit Vue or its descendant class ' +
'when class property is used.');
}
}
return plainData;
}
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