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

property decorators for Vue Component

export function needToProduceProvide(original) {
    return (typeof original !== 'function' ||
        (!original.managed && !original.managedReactive));
}
export function produceProvide(original) {
    var provide = function () {
        var _this = this;
        var rv = typeof original === 'function' ? original.call(this) : original;
        rv = Object.create(rv || null);
        // set reactive services (propagates previous services if necessary)
        rv[reactiveInjectKey] = Object.create(this[reactiveInjectKey] || {});
        for (var i in provide.managed) {
            rv[provide.managed[i]] = this[i];
        }
        var _loop_1 = function (i) {
            rv[provide.managedReactive[i]] = this_1[i]; // Duplicates the behavior of `@Provide`
            Object.defineProperty(rv[reactiveInjectKey], provide.managedReactive[i], {
                enumerable: true,
                configurable: true,
                get: function () { return _this[i]; },
            });
        };
        var this_1 = this;
        for (var i in provide.managedReactive) {
            _loop_1(i);
        }
        return rv;
    };
    provide.managed = {};
    provide.managedReactive = {};
    return provide;
}
/** Used for keying reactive provide/inject properties */
export var reactiveInjectKey = '__reactiveInject__';
export function inheritInjected(componentOptions) {
    // inject parent reactive services (if any)
    if (!Array.isArray(componentOptions.inject)) {
        componentOptions.inject = componentOptions.inject || {};
        componentOptions.inject[reactiveInjectKey] = {
            from: reactiveInjectKey,
            default: {},
        };
    }
}