vue-property-decorator/lib/helpers/metadata.js

property decorators for Vue Component

/** @see {@link https://github.com/vuejs/vue-class-component/blob/master/src/reflect.ts} */
var reflectMetadataIsSupported = typeof Reflect !== 'undefined' && typeof Reflect.getMetadata !== 'undefined';
export function applyMetadata(options, target, key) {
    if (reflectMetadataIsSupported) {
        if (!Array.isArray(options) &&
            typeof options !== 'function' &&
            !options.hasOwnProperty('type') &&
            typeof options.type === 'undefined') {
            var type = Reflect.getMetadata('design:type', target, key);
            if (type !== Object) {
                options.type = type;
            }
        }
    }
}