feat: native ES module

.github/workflows/release.yml

@@ -12,7 +12,6 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2
       - run: npm ci
-      - run: npm run build
       - run: npx semantic-release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -3,7 +3,6 @@ on:
   push:
     branches:
       - master
-      - "greenkeeper/**"
   pull_request:
     types: [opened, synchronize]
 

index.d.ts

@@ -1,31 +1,56 @@
 declare type Options = {
-    [key: string]: unknown;
+  [key: string]: unknown;
 };
 declare type ApiExtension = {
-    [key: string]: unknown;
+  [key: string]: unknown;
 };
-declare type TestPlugin = (instance: Base, options: Options) => ApiExtension | undefined;
+declare type Plugin = (instance: Base, options: Options) => ApiExtension | void;
+
 declare type Constructor<T> = new (...args: any[]) => T;
 /**
  * @author https://stackoverflow.com/users/2887218/jcalz
  * @see https://stackoverflow.com/a/50375286/10325032
  */
-declare type UnionToIntersection<Union> = (Union extends any ? (argument: Union) => void : never) extends (argument: infer Intersection) => void ? Intersection : never;
+declare type UnionToIntersection<Union> = (
+  Union extends any ? (argument: Union) => void : never
+) extends (argument: infer Intersection) => void
+  ? Intersection
+  : never;
 declare type AnyFunction = (...args: any) => any;
-declare type ReturnTypeOf<T extends AnyFunction | AnyFunction[]> = T extends AnyFunction ? ReturnType<T> : T extends AnyFunction[] ? UnionToIntersection<ReturnType<T[number]>> : never;
+declare type ReturnTypeOf<T extends AnyFunction | AnyFunction[]> =
+  T extends AnyFunction
+    ? ReturnType<T>
+    : T extends AnyFunction[]
+    ? UnionToIntersection<ReturnType<T[number]>>
+    : never;
+
 export declare class Base<TOptions extends Options = Options> {
-    static plugins: TestPlugin[];
-    static plugin<S extends Constructor<any> & {
-        plugins: any[];
-    }, T1 extends TestPlugin, T2 extends TestPlugin[]>(this: S, plugin1: T1, ...additionalPlugins: T2): S & {
-        plugins: any[];
-    } & Constructor<UnionToIntersection<ReturnTypeOf<T1> & ReturnTypeOf<T2>>>;
-    static defaults<TDefaults extends Options, S extends Constructor<Base<TDefaults>>>(this: S, defaults: TDefaults): {
-        new (...args: any[]): {
-            options: TDefaults;
-        };
-    } & S;
-    constructor(options?: TOptions);
-    options: TOptions;
+  static plugins: Plugin[];
+  static plugin<
+    S extends Constructor<any> & {
+      plugins: any[];
+    },
+    T1 extends Plugin,
+    T2 extends Plugin[]
+  >(
+    this: S,
+    plugin1: T1,
+    ...additionalPlugins: T2
+  ): S & {
+    plugins: any[];
+  } & Constructor<UnionToIntersection<ReturnTypeOf<T1> & ReturnTypeOf<T2>>>;
+  static defaults<
+    TDefaults extends Options,
+    S extends Constructor<Base<TDefaults>>
+  >(
+    this: S,
+    defaults: TDefaults
+  ): {
+    new (...args: any[]): {
+      options: TDefaults;
+    };
+  } & S;
+  constructor(options?: TOptions);
+  options: TOptions;
 }
 export {};

index.js

@@ -1,74 +1,32 @@
-"use strict";
-var __extends = (this && this.__extends) || (function () {
-    var extendStatics = function (d, b) {
-        extendStatics = Object.setPrototypeOf ||
-            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
-        return extendStatics(d, b);
+export class Base {
+  constructor(options = {}) {
+    this.options = options;
+    // apply plugins
+    // https://stackoverflow.com/a/16345172
+    const classConstructor = this.constructor;
+    classConstructor.plugins.forEach((plugin) => {
+      Object.assign(this, plugin(this, options));
+    });
+  }
+  static plugin(plugin1, ...additionalPlugins) {
+    var _a;
+    const currentPlugins = this.plugins;
+    let newPlugins = [plugin1, ...additionalPlugins];
+    const BaseWithPlugins =
+      ((_a = class extends this {}),
+      (_a.plugins = currentPlugins.concat(
+        newPlugins.filter((plugin) => !currentPlugins.includes(plugin))
+      )),
+      _a);
+    return BaseWithPlugins;
+  }
+  static defaults(defaults) {
+    const BaseWitDefaults = class extends this {
+      constructor(...args) {
+        super(Object.assign({}, defaults, args[0] || {}));
+      }
     };
-    return function (d, b) {
-        extendStatics(d, b);
-        function __() { this.constructor = d; }
-        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
-    };
-})();
-var __spreadArrays = (this && this.__spreadArrays) || function () {
-    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;
-    for (var r = Array(s), k = 0, i = 0; i < il; i++)
-        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
-            r[k] = a[j];
-    return r;
-};
-exports.__esModule = true;
-exports.Base = void 0;
-var Base = /** @class */ (function () {
-    function Base(options) {
-        var _this = this;
-        if (options === void 0) { options = {}; }
-        this.options = options;
-        // apply plugins
-        // https://stackoverflow.com/a/16345172
-        var classConstructor = this.constructor;
-        classConstructor.plugins.forEach(function (plugin) {
-            Object.assign(_this, plugin(_this, options));
-        });
-    }
-    Base.plugin = function (plugin1) {
-        var _a;
-        var additionalPlugins = [];
-        for (var _i = 1; _i < arguments.length; _i++) {
-            additionalPlugins[_i - 1] = arguments[_i];
-        }
-        var currentPlugins = this.plugins;
-        var newPlugins = __spreadArrays([
-            plugin1
-        ], additionalPlugins);
-        var BaseWithPlugins = (_a = /** @class */ (function (_super) {
-                __extends(class_1, _super);
-                function class_1() {
-                    return _super !== null && _super.apply(this, arguments) || this;
-                }
-                return class_1;
-            }(this)),
-            _a.plugins = currentPlugins.concat(newPlugins.filter(function (plugin) { return !currentPlugins.includes(plugin); })),
-            _a);
-        return BaseWithPlugins;
-    };
-    Base.defaults = function (defaults) {
-        var BaseWitDefaults = /** @class */ (function (_super) {
-            __extends(class_2, _super);
-            function class_2() {
-                var args = [];
-                for (var _i = 0; _i < arguments.length; _i++) {
-                    args[_i] = arguments[_i];
-                }
-                return _super.call(this, Object.assign({}, defaults, args[0] || {})) || this;
-            }
-            return class_2;
-        }(this));
-        return BaseWitDefaults;
-    };
-    Base.plugins = [];
-    return Base;
-}());
-exports.Base = Base;
+    return BaseWitDefaults;
+  }
+}
+Base.plugins = [];

index.test-d.ts

@@ -0,0 +1,22 @@
+import { expectType } from "tsd";
+import { Base } from "./index.js";
+
+const fooPlugin = () => {
+  return {
+    foo: () => "foo",
+  };
+};
+
+const MyBase = Base.plugin(fooPlugin).defaults({
+  default: "value",
+});
+const base = new MyBase({
+  option: "value",
+});
+
+expectType<string>(base.options.default);
+expectType<string>(base.options.option);
+expectType<string>(base.foo());
+
+// @ts-expect-error unknown properties cannot be used, see #31
+base.unknown;