Merge pull request #626 from preactjs/JoviDeCroock/prefresh-issue-625

fix(vite): resolve ESM types correctly under NodeNext and Deno

Author: JoviDeCroock

.changeset/clean-types-resolve.md

@@ -0,0 +1,9 @@
+---
+'@prefresh/vite': patch
+---
+
+Fix type resolution under `moduleResolution: NodeNext` and Deno
+
+The `import` condition now resolves to a real ESM entry (`src/index.mjs`) with matching ESM type declarations (`index.d.mts` using `export default`), while `require` keeps the CommonJS declarations (`index.d.ts` using `export =`). Previously the ESM entry was typed with a CJS-style `export =` declaration, which TypeScript 6 / Deno 2.8.3+ reject as a hard error.
+
+Also inline the `FilterPattern` type instead of importing it from `@rollup/pluginutils`, whose types do not resolve under NodeNext.

packages/vite/index.d.mts

@@ -0,0 +1,13 @@
+import { PluginOption } from 'vite';
+
+type FilterPattern = ReadonlyArray<string | RegExp> | string | RegExp | null;
+
+interface Options {
+  parserPlugins?: readonly string[];
+  include?: FilterPattern;
+  exclude?: FilterPattern;
+}
+
+declare const prefreshPlugin: (options?: Options) => Promise<PluginOption>;
+
+export default prefreshPlugin;

packages/vite/index.d.ts

@@ -1,6 +1,7 @@
-import { FilterPattern } from '@rollup/pluginutils';
 import { PluginOption } from 'vite';
 
+type FilterPattern = ReadonlyArray<string | RegExp> | string | RegExp | null;
+
 interface Options {
   parserPlugins?: readonly string[];
   include?: FilterPattern;

packages/vite/package.json

@@ -6,20 +6,24 @@
   "types": "index.d.ts",
   "exports": {
     ".": {
-      "types": "./index.d.ts",
-      "require": "./src/index.js",
-      "import": "./src/index.js"
+      "import": {
+        "types": "./index.d.mts",
+        "default": "./src/index.mjs"
+      },
+      "require": {
+        "types": "./index.d.ts",
+        "default": "./src/index.js"
+      }
     },
     "./package.json": "./package.json"
   },
   "modes": {
     "default": "src/index.js"
   },
   "files": [
-    "dist",
-    "runtime",
-    "utils",
-    "index.d.ts"
+    "src",
+    "index.d.ts",
+    "index.d.mts"
   ],
   "scripts": {
     "lint": "eslint src",

packages/vite/src/index.mjs

@@ -0,0 +1,3 @@
+import prefreshPlugin from './index.js';
+
+export default prefreshPlugin;