mmlpx/esm/core/dependency-inject/decorators/inject.js

mobx model layer paradigm

/**
 * @author Kuitos
 * @homepage https://github.com/kuitos/
 * @since 2017-07-11
 */
import 'reflect-metadata';
import hydrate from '../hydrate';
import instantiate from '../instantiate';
export default (function (InjectedClass) {
    var args = [];
    for (var _i = 1; _i < arguments.length; _i++) {
        args[_i - 1] = arguments[_i];
    }
    return function (target, property) {
        var symbol = Symbol(property);
        if (!InjectedClass) {
            InjectedClass = Reflect.getMetadata('design:type', target, property);
            /* istanbul ignore next */
            if (!InjectedClass) {
                throw new SyntaxError('You must pass a Class for injection while you are not using typescript!' + 'Or you may need to add "emitDecoratorMetadata: true" configuration to your tsconfig.json');
            }
        }
        return {
            enumerable: true,
            configurable: true,
            get: function () {
                if (!this[symbol]) {
                    var initializedValue = instantiate.apply(this, [InjectedClass].concat(args));
                    this[symbol] = initializedValue;
                    return initializedValue;
                } else {
                    return hydrate.apply(void 0, [this[symbol], InjectedClass].concat(args));
                }
            },
            // @formatter:off
            // tslint:disable-next-line
            set: function () {}
        };
    };
});