fix: remove internal __sveltekit/ module declarations from types

.changeset/brave-cats-tan.md

@@ -0,0 +1,5 @@
+---
+"@sveltejs/kit": patch
+---
+
+fix: remove internal `__sveltekit/` module declarations from types

packages/kit/scripts/generate-dts.js

@@ -1,18 +1,28 @@
 import { createBundle } from 'dts-buddy';
+import { readFileSync } from 'node:fs';
 
-createBundle({
+await createBundle({
 	output: 'types/index.d.ts',
 	modules: {
 		'@sveltejs/kit': 'src/exports/public.d.ts',
 		'@sveltejs/kit/hooks': 'src/exports/hooks/index.js',
 		'@sveltejs/kit/node': 'src/exports/node/index.js',
 		'@sveltejs/kit/node/polyfills': 'src/exports/node/polyfills.js',
 		'@sveltejs/kit/vite': 'src/exports/vite/index.js',
-		'$app/environment': 'src/runtime/app/environment.js',
+		'$app/environment': 'src/runtime/app/environment/types.d.ts',
 		'$app/forms': 'src/runtime/app/forms.js',
 		'$app/navigation': 'src/runtime/app/navigation.js',
-		'$app/paths': 'src/runtime/app/paths.js',
+		'$app/paths': 'src/runtime/app/paths/types.d.ts',
 		'$app/stores': 'src/runtime/app/stores.js'
 	},
 	include: ['src']
 });
+
+// dts-buddy doesn't inline imports of module declaration in ambient-private.d.ts but also doesn't include them, resulting in broken types - guard against that
+const types = readFileSync('./types/index.d.ts', 'utf-8');
+if (types.includes('__sveltekit/')) {
+	throw new Error(
+		'Found __sveltekit/ in types/index.d.ts - make sure to hide internal modules by not just reexporting them. Contents:\n\n' +
+			types
+	);
+}

packages/kit/src/runtime/app/environment/index.js

@@ -0,0 +1,6 @@
+import { BROWSER, DEV } from 'esm-env';
+export { building, version } from '__sveltekit/environment';
+
+export const browser = BROWSER;
+
+export const dev = DEV;

packages/kit/src/runtime/app/environment/types.d.ts

@@ -0,0 +1,19 @@
+/**
+ * `true` if the app is running in the browser.
+ */
+export const browser: boolean;
+
+/**
+ * Whether the dev server is running. This is not guaranteed to correspond to `NODE_ENV` or `MODE`.
+ */
+export const dev: boolean;
+
+/**
+ * SvelteKit analyses your app during the `build` step by running it. During this process, `building` is `true`. This also applies during prerendering.
+ */
+export const building: boolean;
+
+/**
+ * The value of `config.kit.version.name`.
+ */
+export const version: string;

packages/kit/src/runtime/app/paths/index.js

@@ -0,0 +1,8 @@
+export { base, assets } from '__sveltekit/paths';
+import { base } from '__sveltekit/paths';
+import { resolve_route } from '../../../utils/routing.js';
+
+/** @type {import('./types.d.ts').resolveRoute} */
+export function resolveRoute(id, params) {
+	return base + resolve_route(id, params);
+}

packages/kit/src/runtime/app/paths/types.d.ts

@@ -0,0 +1,28 @@
+/**
+ * A string that matches [`config.kit.paths.base`](https://kit.svelte.dev/docs/configuration#paths).
+ *
+ * Example usage: `<a href="{base}/your-page">Link</a>`
+ */
+export let base: '' | `/${string}`;
+
+/**
+ * An absolute path that matches [`config.kit.paths.assets`](https://kit.svelte.dev/docs/configuration#paths).
+ *
+ * > If a value for `config.kit.paths.assets` is specified, it will be replaced with `'/_svelte_kit_assets'` during `vite dev` or `vite preview`, since the assets don't yet live at their eventual URL.
+ */
+export let assets: '' | `https://${string}` | `http://${string}` | '/_svelte_kit_assets';
+
+/**
+ * Populate a route ID with params to resolve a pathname.
+ * @example
+ * ```js
+ * resolveRoute(
+ *   `/blog/[slug]/[...somethingElse]`,
+ *   {
+ *     slug: 'hello-world',
+ *     somethingElse: 'something/else'
+ *   }
+ * ); // `/blog/hello-world/something/else`
+ * ```
+ */
+export function resolveRoute(id: string, params: Record<string, string | undefined>): string;

packages/kit/src/types/ambient-private.d.ts

@@ -1,11 +1,18 @@
-declare global {
-	const __SVELTEKIT_ADAPTER_NAME__: string;
-	const __SVELTEKIT_APP_VERSION_FILE__: string;
-	const __SVELTEKIT_APP_VERSION_POLL_INTERVAL__: number;
-	const __SVELTEKIT_DEV__: boolean;
-	const __SVELTEKIT_EMBEDDED__: boolean;
-	var Bun: object;
-	var Deno: object;
+/** Internal version of $app/environment */
+declare module '__sveltekit/environment' {
+	export const building: boolean;
+	export const prerendering: boolean;
+	export const version: string;
+	export function set_building(): void;
+	export function set_prerendering(): void;
 }
 
-export {};
+/** Internal version of $app/paths */
+declare module '__sveltekit/paths' {
+	export let base: '' | `/${string}`;
+	export let assets: '' | `https://${string}` | `http://${string}` | '/_svelte_kit_assets';
+	export let relative: boolean;
+	export function reset(): void;
+	export function override(paths: { base: string; assets: string }): void;
+	export function set_assets(path: string): void;
+}

packages/kit/src/types/ambient.d.ts

@@ -79,41 +79,3 @@ declare module '$service-worker' {
 	 */
 	export const version: string;
 }
-
-/** Internal version of $app/environment */
-declare module '__sveltekit/environment' {
-	/**
-	 * SvelteKit analyses your app during the `build` step by running it. During this process, `building` is `true`. This also applies during prerendering.
-	 */
-	export const building: boolean;
-	/**
-	 * True during prerendering, false otherwise.
-	 */
-	export const prerendering: boolean;
-	/**
-	 * The value of `config.kit.version.name`.
-	 */
-	export const version: string;
-	export function set_building(): void;
-	export function set_prerendering(): void;
-}
-
-/** Internal version of $app/paths */
-declare module '__sveltekit/paths' {
-	/**
-	 * A string that matches [`config.kit.paths.base`](https://kit.svelte.dev/docs/configuration#paths).
-	 *
-	 * Example usage: `<a href="{base}/your-page">Link</a>`
-	 */
-	export let base: '' | `/${string}`;
-	/**
-	 * An absolute path that matches [`config.kit.paths.assets`](https://kit.svelte.dev/docs/configuration#paths).
-	 *
-	 * > If a value for `config.kit.paths.assets` is specified, it will be replaced with `'/_svelte_kit_assets'` during `vite dev` or `vite preview`, since the assets don't yet live at their eventual URL.
-	 */
-	export let assets: '' | `https://${string}` | `http://${string}` | '/_svelte_kit_assets';
-	export let relative: boolean;
-	export function reset(): void;
-	export function override(paths: { base: string; assets: string }): void;
-	export function set_assets(path: string): void;
-}

packages/kit/src/types/global-private.d.ts

@@ -0,0 +1,11 @@
+declare global {
+	const __SVELTEKIT_ADAPTER_NAME__: string;
+	const __SVELTEKIT_APP_VERSION_FILE__: string;
+	const __SVELTEKIT_APP_VERSION_POLL_INTERVAL__: number;
+	const __SVELTEKIT_DEV__: boolean;
+	const __SVELTEKIT_EMBEDDED__: boolean;
+	var Bun: object;
+	var Deno: object;
+}
+
+export {};

packages/kit/types/index.d.ts

@@ -1892,15 +1892,25 @@ declare module '@sveltejs/kit/vite' {
 }
 
 declare module '$app/environment' {
-	export { building, version } from '__sveltekit/environment';
 	/**
 	 * `true` if the app is running in the browser.
 	 */
 	export const browser: boolean;
+
 	/**
 	 * Whether the dev server is running. This is not guaranteed to correspond to `NODE_ENV` or `MODE`.
 	 */
 	export const dev: boolean;
+
+	/**
+	 * SvelteKit analyses your app during the `build` step by running it. During this process, `building` is `true`. This also applies during prerendering.
+	 */
+	export const building: boolean;
+
+	/**
+	 * The value of `config.kit.version.name`.
+	 */
+	export const version: string;
 }
 
 declare module '$app/forms' {
@@ -2067,7 +2077,20 @@ declare module '$app/navigation' {
 }
 
 declare module '$app/paths' {
-	export { base, assets } from '__sveltekit/paths';
+	/**
+	 * A string that matches [`config.kit.paths.base`](https://kit.svelte.dev/docs/configuration#paths).
+	 *
+	 * Example usage: `<a href="{base}/your-page">Link</a>`
+	 */
+	export let base: '' | `/${string}`;
+
+	/**
+	 * An absolute path that matches [`config.kit.paths.assets`](https://kit.svelte.dev/docs/configuration#paths).
+	 *
+	 * > If a value for `config.kit.paths.assets` is specified, it will be replaced with `'/_svelte_kit_assets'` during `vite dev` or `vite preview`, since the assets don't yet live at their eventual URL.
+	 */
+	export let assets: '' | `https://${string}` | `http://${string}` | '/_svelte_kit_assets';
+
 	/**
 	 * Populate a route ID with params to resolve a pathname.
 	 * @example
@@ -2080,7 +2103,7 @@ declare module '$app/paths' {
 	 *   }
 	 * ); // `/blog/hello-world/something/else`
 	 * ```
-	 * */
+	 */
 	export function resolveRoute(id: string, params: Record<string, string | undefined>): string;
 }
 
@@ -2198,42 +2221,4 @@ declare module '$service-worker' {
 	export const version: string;
 }
 
-/** Internal version of $app/environment */
-declare module '__sveltekit/environment' {
-	/**
-	 * SvelteKit analyses your app during the `build` step by running it. During this process, `building` is `true`. This also applies during prerendering.
-	 */
-	export const building: boolean;
-	/**
-	 * True during prerendering, false otherwise.
-	 */
-	export const prerendering: boolean;
-	/**
-	 * The value of `config.kit.version.name`.
-	 */
-	export const version: string;
-	export function set_building(): void;
-	export function set_prerendering(): void;
-}
-
-/** Internal version of $app/paths */
-declare module '__sveltekit/paths' {
-	/**
-	 * A string that matches [`config.kit.paths.base`](https://kit.svelte.dev/docs/configuration#paths).
-	 *
-	 * Example usage: `<a href="{base}/your-page">Link</a>`
-	 */
-	export let base: '' | `/${string}`;
-	/**
-	 * An absolute path that matches [`config.kit.paths.assets`](https://kit.svelte.dev/docs/configuration#paths).
-	 *
-	 * > If a value for `config.kit.paths.assets` is specified, it will be replaced with `'/_svelte_kit_assets'` during `vite dev` or `vite preview`, since the assets don't yet live at their eventual URL.
-	 */
-	export let assets: '' | `https://${string}` | `http://${string}` | '/_svelte_kit_assets';
-	export let relative: boolean;
-	export function reset(): void;
-	export function override(paths: { base: string; assets: string }): void;
-	export function set_assets(path: string): void;
-}
-
 //# sourceMappingURL=index.d.ts.map

sites/kit.svelte.dev/scripts/types/index.js

@@ -310,22 +310,6 @@ for (const file of await readdir(dir)) {
 	}
 }
 
-// need to do some unfortunate finagling here, hopefully we can remove this one day
-const app_paths = modules.find((module) => module.name === '$app/paths');
-const app_environment = modules.find((module) => module.name === '$app/environment');
-const __sveltekit_paths = modules.find((module) => module.name === '__sveltekit/paths');
-const __sveltekit_environment = modules.find((module) => module.name === '__sveltekit/environment');
-
-app_paths?.exports.push(
-	__sveltekit_paths.exports.find((e) => e.name === 'assets'),
-	__sveltekit_paths.exports.find((e) => e.name === 'base')
-);
-
-app_environment?.exports.push(
-	__sveltekit_environment.exports.find((e) => e.name === 'building'),
-	__sveltekit_environment.exports.find((e) => e.name === 'version')
-);
-
 modules.sort((a, b) => (a.name < b.name ? -1 : 1));
 
 mkdirp('src/lib/generated');