Convert to ESM

.eslintrc.cjs

@@ -59,7 +59,7 @@ module.exports = {
     'no-var': 'error',
   },
   parserOptions: {
-    ecmaVersion: 2020,
+    ecmaVersion: 2022,
     sourceType: 'module',
   },
 };

.github/workflows/ci.yml

@@ -34,7 +34,6 @@ jobs:
     strategy:
       matrix:
         node-vesion:
-          - 18
           - 20
           - 22
           - 24

package.json

@@ -13,34 +13,26 @@
   "license": "ISC",
   "author": "",
   "type": "module",
+  "types": "./types/index.d.ts",
   "exports": {
     ".": {
-      "require": {
-        "types": "./types/index.d.ts",
-        "default": "./dist/cjs/index.js"
-      },
-      "import": {
-        "types": "./types/index.d.ts",
-        "default": "./dist/esm/index.js"
-      },
-      "default": {
-        "types": "./types/index.d.ts",
-        "default": "./dist/cjs/index.js"
-      }
+      "types": "./types/index.d.ts",
+      "default": "./dist/index.js"
     }
   },
-  "main": "dist/cjs/index.js",
-  "module": "dist/esm/index.js",
-  "types": "types/index.d.ts",
+  "files": [
+    "dist",
+    "types"
+  ],
   "scripts": {
     "lint": "eslint .",
     "prepublishOnly": "pnpm run build",
-    "build": "npm-run-all build:parser build:esm build:cjs",
-    "build:cjs": "tsc --module commonjs --moduleResolution node --target es5 --outDir dist/cjs",
-    "build:esm": "tsc --module es2015 --target es5 --outDir dist/esm",
+    "build": "npm-run-all build:parser build:esm",
+    "build:esm": "tsc --module es2022 --outDir dist",
     "build:jison": "jison -m js src/handlebars.yy src/handlebars.l -o lib/parser.js",
-    "build:parser": "npm-run-all build:jison build:parser-suffix",
+    "build:parser": "npm-run-all build:jison build:parser-suffix build:parser-clean",
     "build:parser-suffix": "combine-files lib/parser.js,src/parser-suffix.js lib/parser.js",
+    "build:parser-clean": "node --input-type=module -e \"import{readFileSync,writeFileSync}from'fs';const f='lib/parser.js';writeFileSync(f,readFileSync(f,'utf8').replace(/^\\s*_token_stack:\\n/m,''))\"",
     "pretest": "pnpm run build",
     "test": "mocha --inline-diffs spec",
     "pretest:bail": "pnpm run build",
@@ -65,7 +57,7 @@
   },
   "packageManager": "pnpm@9.12.2",
   "engines": {
-    "node": "^18 || ^20 || ^22 || >=24"
+    "node": "^20 || ^22 || >=24"
   },
   "publishConfig": {
     "access": "public",

spec/ast.js

@@ -1,4 +1,4 @@
-import { parse, parseWithoutProcessing } from '../dist/esm/index.js';
+import { parse, parseWithoutProcessing } from '../dist/index.js';
 import { equals } from './utils.js';
 
 describe('ast', function () {

spec/parser.js

@@ -1,4 +1,4 @@
-import { parse, print } from '../dist/esm/index.js';
+import { parse, print } from '../dist/index.js';
 import { equals, equalsAst, shouldThrow } from './utils.js';
 
 describe('parser', function () {

spec/utils.js

@@ -1,4 +1,4 @@
-import { parse, print } from '../dist/esm/index.js';
+import { parse, print } from '../dist/index.js';
 
 let AssertError;
 if (Error.captureStackTrace) {

spec/visitor.js

@@ -1,4 +1,4 @@
-import { Visitor, parse, print, Exception } from '../dist/esm/index.js';
+import { Visitor, parse, print, Exception } from '../dist/index.js';
 import { equals, shouldThrow } from './utils.js';
 
 describe('Visitor', function () {

tsconfig.json

@@ -1,7 +1,8 @@
 {
   "compilerOptions": {
     // Compilation Configuration
-    "target": "es2017",
+    "target": "es2022",
+    "module": "es2022",
     "inlineSources": true,
     "inlineSourceMap": true,
     "outDir": "dist",