@gvray/eskit/esm/mixin.js

A rich and colorful toolkit about typescript and javascript.

var __values = (this && this.__values) || function(o) {
    var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
    if (m) return m.call(o);
    if (o && typeof o.length === "number") return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
    throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
import copyProperties from './copyProperties';
/**
 * Creates a new class by combining multiple classes (mixin pattern).
 * 通过组合多个类创建新类（混入模式）。
 *
 * @param mixins - The classes to combine / 要组合的类
 * @returns A new class with combined functionality / 具有组合功能的新类
 *
 * @example
 * ```typescript
 * // Define base classes
 * class Walkable {
 *   walk() {
 *     console.log('Walking...')
 *   }
 * }
 *
 * class Swimmable {
 *   swim() {
 *     console.log('Swimming...')
 *   }
 * }
 *
 * class Flyable {
 *   fly() {
 *     console.log('Flying...')
 *   }
 * }
 *
 * // Create combined classes
 * const Duck = mixin(Walkable, Swimmable, Flyable)
 * const Fish = mixin(Swimmable)
 * const Bird = mixin(Walkable, Flyable)
 *
 * // Use the mixed classes
 * const duck = new Duck()
 * duck.walk() // 'Walking...'
 * duck.swim() // 'Swimming...'
 * duck.fly() // 'Flying...'
 *
 * const fish = new Fish()
 * fish.swim() // 'Swimming...'
 * // fish.walk() // Error: walk is not a function
 *
 * // With properties and constructor logic
 * class HasName {
 *   constructor() {
 *     this.name = 'Unknown'
 *   }
 *   getName() {
 *     return this.name
 *   }
 * }
 *
 * class HasAge {
 *   constructor() {
 *     this.age = 0
 *   }
 *   getAge() {
 *     return this.age
 *   }
 * }
 *
 * const Person = mixin(HasName, HasAge)
 * const person = new Person()
 * console.log(person.getName()) // 'Unknown'
 * console.log(person.getAge()) // 0
 * ```
 *
 * @since 1.0.0
 */
var mixin = function () {
    var e_1, _a;
    var mixins = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        mixins[_i] = arguments[_i];
    }
    var Mixin = /** @class */ (function () {
        function Mixin() {
            var e_2, _a;
            try {
                for (var mixins_2 = __values(mixins), mixins_2_1 = mixins_2.next(); !mixins_2_1.done; mixins_2_1 = mixins_2.next()) {
                    var mixin_1 = mixins_2_1.value;
                    copyProperties(this, new mixin_1()); // Copy Instance Properties
                }
            }
            catch (e_2_1) { e_2 = { error: e_2_1 }; }
            finally {
                try {
                    if (mixins_2_1 && !mixins_2_1.done && (_a = mixins_2.return)) _a.call(mixins_2);
                }
                finally { if (e_2) throw e_2.error; }
            }
        }
        return Mixin;
    }());
    try {
        for (var mixins_1 = __values(mixins), mixins_1_1 = mixins_1.next(); !mixins_1_1.done; mixins_1_1 = mixins_1.next()) {
            var mixin_2 = mixins_1_1.value;
            copyProperties(Mixin, mixin_2); // Copy static properties
            copyProperties(Mixin.prototype, mixin_2.prototype); // Copy prototype properties
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (mixins_1_1 && !mixins_1_1.done && (_a = mixins_1.return)) _a.call(mixins_1);
        }
        finally { if (e_1) throw e_1.error; }
    }
    return Mixin;
};
export default mixin;
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