chore: use node.js 12 as minimum required version

Author: orlov-vo

index.js

@@ -1,11 +1,9 @@
-const path = require('path');
-const { Transformer } = require('@parcel/plugin');
-const { default: SourceMap } = require('@parcel/source-map');
-const { relativeUrl } = require('@parcel/utils');
-const { compile, preprocess } = require('svelte/compiler.js');
-const { load, preSerialize, postDeserialize } = require('./loadConfig');
-
-Object.defineProperty(exports, '__esModule', { value: true });
+import path from 'path';
+import { Transformer } from '@parcel/plugin';
+import SourceMap from '@parcel/source-map';
+import { relativeUrl } from '@parcel/utils';
+import { compile, preprocess } from 'svelte/compiler.js';
+import { load, preSerialize, postDeserialize } from './loadConfig';
 
 function generateName(input) {
   let name = path
@@ -42,7 +40,7 @@ async function handleError(sourceFileName, func) {
   }
 }
 
-exports.default = new Transformer({
+export default new Transformer({
   loadConfig({ config, options, logger }) {
     return load({ config, options, logger });
   },

loadConfig.js

@@ -1,6 +1,4 @@
-const path = require('path');
-
-Object.defineProperty(exports, '__esModule', { value: true });
+import path from 'path';
 
 const CONFIG_FILES = ['.svelterc', 'svelte.config.js'];
 const CONFIG_PACKAGE_KEY = 'svelte';
@@ -21,7 +19,7 @@ async function configHydrator(configFile, config, options) {
   });
 }
 
-exports.load = async function load({ config, options, logger }) {
+export async function load({ config, options, logger }) {
   const configFile = await getConfigFile(config);
   if (!configFile) return;
 
@@ -68,9 +66,9 @@ exports.load = async function load({ config, options, logger }) {
     config,
     options,
   );
-};
+}
 
-exports.preSerialize = function preSerialize(config) {
+export function preSerialize(config) {
   if (!config.result) return;
 
   // Ensure we don't pass preprocess functions to the serializer
@@ -80,8 +78,8 @@ exports.preSerialize = function preSerialize(config) {
 
   // This gets re-hydrated in Deserialize, so never store this
   config.result.hydrated = {};
-};
+}
 
-exports.postDeserialize = function postDeserialize(config, options) {
+export function postDeserialize(config, options) {
   return configHydrator(config.result.raw, config, options);
-};
+}

package.json

@@ -2,6 +2,7 @@
   "name": "parcel-transformer-svelte",
   "version": "1.1.2",
   "description": "Parcel 2 transformer for Svelte 3",
+  "type": "module",
   "main": "index.js",
   "author": "Vladislav Orlov <me@orlov-vo.ru>",
   "repository": "github:orlov-vo/parcel-transformer-svelte",
@@ -16,7 +17,7 @@
     "/loadConfig.js"
   ],
   "engines": {
-    "node": ">=8",
+    "node": ">=12",
     "parcel": "^2.0.0"
   },
   "peerDependencies": {