@formily/shared/esm/subscribable.js

> Formily 工具函数集

import { isFn } from './checkers';
import { each } from './array';
var Subscribable = /** @class */ (function () {
    function Subscribable() {
        var _this = this;
        this.subscribers = {
            index: 0,
        };
        this.subscribe = function (callback) {
            if (isFn(callback)) {
                var index = _this.subscribers.index + 1;
                _this.subscribers[index] = callback;
                _this.subscribers.index++;
                return index;
            }
        };
        this.unsubscribe = function (index) {
            if (_this.subscribers[index]) {
                delete _this.subscribers[index];
            }
            else if (!index) {
                _this.subscribers = {
                    index: 0,
                };
            }
        };
        this.notify = function (payload, silent) {
            if (_this.subscription) {
                if (_this.subscription && isFn(_this.subscription.notify)) {
                    if (_this.subscription.notify.call(_this, payload) === false) {
                        return;
                    }
                }
            }
            if (silent)
                return;
            var filter = function (payload) {
                if (_this.subscription && isFn(_this.subscription.filter)) {
                    return _this.subscription.filter.call(_this, payload);
                }
                return payload;
            };
            each(_this.subscribers, function (callback) {
                if (isFn(callback))
                    callback(filter(payload));
            });
        };
    }
    return Subscribable;
}());
export { Subscribable };
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