refactor: use esm

BREAKING CHANGE: use Babel 8

Author: Airkro

README.md

@@ -29,6 +29,9 @@ npm install babel-preset-evergreen --save-dev
 // example: babel.config.json
 {
   "targets": "chrome >= 60",
+  "assumptions": {
+    "noNewArrows": false
+  },
   "presets": [
     [
       "evergreen",

index.cjs index.mjsindex.cjs renamed to index.mjs

@@ -1,11 +1,9 @@
-'use strict';
-
-const { declare } = require('@babel/helper-plugin-utils');
-const { excludeIfMini } = require('./mini.cjs');
-
-module.exports = declare((api, options = {}) => {
-  api.assertVersion(7);
+import { declare } from '@babel/helper-plugin-utils';
+import { excludeIfMini } from './mini.mjs';
+import pkg from './package.json' with { type: 'json' };
 
+export default declare((api, options = {}) => {
+  api.assertVersion(8);
   const { polyfill = false } = options;
 
   const presets = [
@@ -15,25 +13,21 @@ module.exports = declare((api, options = {}) => {
         modules: false,
         useBuiltIns: false,
         shippedProposals: true,
-        spec: true,
-        bugfixes: true,
+        corejs: pkg.dependencies['core-js'],
       },
     ],
   ];
-
   if (!polyfill) {
-    return { presets };
+    return {
+      presets,
+    };
   }
-
   const {
     usage = 'global',
     include = [],
     exclude = [],
     mini = false,
   } = polyfill;
-
-  const pkg = require('./package.json');
-
   return {
     presets,
     plugins: [

mini.cjs

@@ -0,0 +1,14 @@
+import modules from 'core-js-compat/modules.json' with { type: 'json' };
+import miniprogramCompat from 'miniprogram-compat/data/polyfill.json' with { type: 'json' };
+
+const mini = [
+  ...new Set(
+    miniprogramCompat['3.6.1'].coreJsModules.flatMap((item) => [
+      item,
+      item.replace('esnext.', 'es.'),
+      item.replace('es.', 'esnext.'),
+    ]),
+  ),
+].toSorted();
+
+export const excludeIfMini = mini.filter((item) => modules.includes(item));

mini.mjs

@@ -27,45 +27,44 @@
   "bugs": {
     "url": "https://github.com/best-shot/babel-preset-evergreen/issues"
   },
-  "main": "index.cjs",
+  "main": "index.mjs",
   "files": [
-    "mini.cjs"
+    "mini.mjs"
   ],
-  "type": "commonjs",
+  "type": "module",
   "scripts": {
     "lint:eslint": "eslint . --quiet --fix --concurrency=auto",
     "lint:staged": "nice-move lint staged",
     "lint:type": "tsc -p tsconfig.json",
     "lint:version": "syncpack lint",
     "prepare": "nice-move git hooks",
     "prepublishOnly": "pnpm run lint:staged && pnpm run lint:type && pnpm test",
-    "snapshot": "ava --fail-fast -u",
+    "snapshot": "ava --fail-fast -u -w",
     "test": "ava --fail-fast",
     "version:pin": "syncpack fix-mismatches"
   },
   "dependencies": {
-    "@babel/helper-plugin-utils": "^7.29.7",
-    "@babel/preset-env": "^7.29.7",
-    "babel-plugin-polyfill-corejs3": "^0.14.2",
+    "@babel/helper-plugin-utils": "^8.0.1",
+    "@babel/preset-env": "^8.0.2",
+    "babel-plugin-polyfill-corejs3": "^1.0.0",
     "core-js": "^3.49.0",
     "core-js-compat": "^3.49.0",
     "miniprogram-compat": "^1.0.5"
   },
   "devDependencies": {
-    "@babel/core": "^7.29.7",
+    "@babel/core": "^8.0.1",
     "@bring-it/npm": "^0.9.3",
     "@nice-move/all-in-base": "^0.8.6",
-    "@types/babel__core": "^7.20.5",
     "ava": "^8.0.1",
     "eslint": "^9.39.4",
     "garou": "^0.9.21",
     "prettier": "~3.8.4",
     "typescript": "~6.0.3"
   },
   "peerDependencies": {
-    "@babel/core": "^7.29.0"
+    "@babel/core": "^8.0.1"
   },
-  "packageManager": "pnpm@10.28.2",
+  "packageManager": "pnpm@10.34.4",
   "engines": {
     "node": ">=20.18.0",
     "pnpm": "^10.28.0"