From 2218b1e97fe82d63f754f7383e85656f416cc4cd Mon Sep 17 00:00:00 2001
From: Elliott Johnson <hello@ell.iott.dev>
Date: Thu, 13 Nov 2025 16:21:09 -0700
Subject: [PATCH] types

---
 packages/svelte/src/index.d.ts   |  1 +
 packages/svelte/types/index.d.ts | 98 ++++++++++++++++----------------
 2 files changed, 50 insertions(+), 49 deletions(-)

diff --git a/packages/svelte/src/index.d.ts b/packages/svelte/src/index.d.ts
index a1782f5b61..42507385d6 100644
--- a/packages/svelte/src/index.d.ts
+++ b/packages/svelte/src/index.d.ts
@@ -369,3 +369,4 @@ export interface Fork {
 }
 
 export * from './index-client.js';
+export { Hydratable, Transport, Encode, Decode } from '#shared';
diff --git a/packages/svelte/types/index.d.ts b/packages/svelte/types/index.d.ts
index 616d209be2..81700ae95b 100644
--- a/packages/svelte/types/index.d.ts
+++ b/packages/svelte/types/index.d.ts
@@ -450,6 +450,55 @@ declare module 'svelte' {
 	 * @deprecated Use [`$effect`](https://svelte.dev/docs/svelte/$effect) instead
 	 * */
 	export function afterUpdate(fn: () => void): void;
+	type Getters<T> = {
+		[K in keyof T]: () => T[K];
+	};
+
+	/** Decode a value. The value will be whatever the evaluated JavaScript emitted by the corresponding {@link Encode} function evaluates to. */
+	export type Decode<T> = (value: any) => T;
+
+	/** Encode a value as a string. The string should be _valid JavaScript code_ -- for example, the output of `devalue`'s `uneval` function. */
+	export type Encode<T> = (value: T) => string;
+
+	/**
+	 * Custom encode and decode options. This must be used in combination with an environment variable to enable treeshaking, eg:
+	 * ```ts
+	 * import { BROWSER } from 'esm-env';
+	 * const transport: Transport<MyType> = BROWSER ? { decode: myDecodeFunction } : { encode: myEncodeFunction };
+	 * ```
+	 */
+	export type Transport<T> =
+		| {
+				encode: Encode<T>;
+				decode?: undefined;
+		  }
+		| {
+				encode?: undefined;
+				decode: Decode<T>;
+		  };
+
+	/** Make the result of a function hydratable. This means it will be serialized on the server and available synchronously during hydration on the client. */
+	export type Hydratable = {
+		<T>(
+			/**
+			 * A key to identify this hydratable value. Each hydratable value must have a unique key.
+			 * If writing a library that utilizes `hydratable`, prefix your keys with your library name to prevent naming collisions.
+			 */
+			key: string,
+			/**
+			 * A function that returns the value to be hydrated. On the server, this value will be stashed and serialized.
+			 * On the client during hydration, the value will be used synchronously instead of invoking the function.
+			 */
+			fn: () => T,
+			options?: { transport?: Transport<T> }
+		): T;
+		/** Get a hydratable value from the server-rendered store. If used after hydration, will always return `undefined`. Only works on the client. */
+		get: <T>(key: string, options?: { decode?: Decode<T> }) => T | undefined;
+		/** Check if a hydratable value exists in the server-rendered store. */
+		has: (key: string) => boolean;
+		/** Set a hydratable value. Only works on the server during `render`. */
+		set: <T>(key: string, value: T, options?: { encode?: Encode<T> }) => void;
+	};
 	export const hydratable: Hydratable;
 	/**
 	 * Create a snippet programmatically
@@ -592,55 +641,6 @@ declare module 'svelte' {
 	 * ```
 	 * */
 	export function untrack<T>(fn: () => T): T;
-	type Getters<T> = {
-		[K in keyof T]: () => T[K];
-	};
-
-	/** Decode a value. The value will be whatever the evaluated JavaScript emitted by the corresponding {@link Encode} function evaluates to. */
-	type Decode<T> = (value: any) => T;
-
-	/** Encode a value as a string. The string should be _valid JavaScript code_ -- for example, the output of `devalue`'s `uneval` function. */
-	type Encode<T> = (value: T) => string;
-
-	/**
-	 * Custom encode and decode options. This must be used in combination with an environment variable to enable treeshaking, eg:
-	 * ```ts
-	 * import { BROWSER } from 'esm-env';
-	 * const transport: Transport<MyType> = BROWSER ? { decode: myDecodeFunction } : { encode: myEncodeFunction };
-	 * ```
-	 */
-	type Transport<T> =
-		| {
-				encode: Encode<T>;
-				decode?: undefined;
-		  }
-		| {
-				encode?: undefined;
-				decode: Decode<T>;
-		  };
-
-	/** Make the result of a function hydratable. This means it will be serialized on the server and available synchronously during hydration on the client. */
-	type Hydratable = {
-		<T>(
-			/**
-			 * A key to identify this hydratable value. Each hydratable value must have a unique key.
-			 * If writing a library that utilizes `hydratable`, prefix your keys with your library name to prevent naming collisions.
-			 */
-			key: string,
-			/**
-			 * A function that returns the value to be hydrated. On the server, this value will be stashed and serialized.
-			 * On the client during hydration, the value will be used synchronously instead of invoking the function.
-			 */
-			fn: () => T,
-			options?: { transport?: Transport<T> }
-		): T;
-		/** Get a hydratable value from the server-rendered store. If used after hydration, will always return `undefined`. Only works on the client. */
-		get: <T>(key: string, options?: { decode?: Decode<T> }) => T | undefined;
-		/** Check if a hydratable value exists in the server-rendered store. */
-		has: (key: string) => boolean;
-		/** Set a hydratable value. Only works on the server during `render`. */
-		set: <T>(key: string, value: T, options?: { encode?: Encode<T> }) => void;
-	};
 
 	export {};
 }