ymlgen/dist/createCallbackGroup.js

A generator for YML/YAML files

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createCallbackGroup = void 0;
const createCallbackGroup = () => {
    const callbacks = [];
    let called = 0;
    return {
        size: () => callbacks.length,
        called: () => called,
        add(callback) {
            callbacks.push(callback);
            let active = true;
            return () => {
                if (!active) {
                    return;
                }
                active = false;
                const index = callbacks.indexOf(callback);
                if (index !== -1) {
                    callbacks.splice(index, 1);
                }
            };
        },
        clear() {
            callbacks.length = 0;
        },
        call(...args) {
            if (!callbacks.length) {
                return;
            }
            // optimize performance
            if (args.length > 2) {
                callbacks.slice().forEach((callback) => callback(...args));
            }
            else if (args.length === 2) {
                callbacks.slice().forEach((callback) => callback(args[0], args[1]));
            }
            else if (args.length === 1) {
                callbacks.slice().forEach((callback) => callback(args[0]));
            }
            else {
                callbacks.slice().forEach((callback) => callback());
            }
        },
    };
};
exports.createCallbackGroup = createCallbackGroup;
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