From 70a01fc9b18b1083a84e974585ff4e664d404b2f Mon Sep 17 00:00:00 2001
From: Rich Harris <rich.harris@vercel.com>
Date: Wed, 2 Jul 2025 13:16:43 -0400
Subject: [PATCH] fix

---
 .../compiler/phases/3-transform/client/transform-client.js   | 2 ++
 .../svelte/src/compiler/phases/3-transform/client/types.d.ts | 5 +++++
 packages/svelte/src/compiler/phases/3-transform/types.d.ts   | 3 ---
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/packages/svelte/src/compiler/phases/3-transform/client/transform-client.js b/packages/svelte/src/compiler/phases/3-transform/client/transform-client.js
index a424d9c65c..e5e51024ee 100644
--- a/packages/svelte/src/compiler/phases/3-transform/client/transform-client.js
+++ b/packages/svelte/src/compiler/phases/3-transform/client/transform-client.js
@@ -165,6 +165,7 @@ export function client_component(analysis, options) {
 		state_fields: new Map(),
 		transform: {},
 		in_constructor: false,
+		in_derived: false,
 		instance_level_snippets: [],
 		module_level_snippets: [],
 
@@ -703,6 +704,7 @@ export function client_module(analysis, options) {
 		state_fields: new Map(),
 		transform: {},
 		in_constructor: false,
+		in_derived: false,
 		is_instance: false
 	};
 
diff --git a/packages/svelte/src/compiler/phases/3-transform/client/types.d.ts b/packages/svelte/src/compiler/phases/3-transform/client/types.d.ts
index 4b099eed52..e691be169b 100644
--- a/packages/svelte/src/compiler/phases/3-transform/client/types.d.ts
+++ b/packages/svelte/src/compiler/phases/3-transform/client/types.d.ts
@@ -21,6 +21,11 @@ export interface ClientTransformState extends TransformState {
 	 */
 	readonly in_constructor: boolean;
 
+	/**
+	 * True if we're directly inside a `$derived(...)` expression (but not `$derived.by(...)`)
+	 */
+	readonly in_derived: boolean;
+
 	/** `true` if we're transforming the contents of `<script>` */
 	readonly is_instance: boolean;
 
diff --git a/packages/svelte/src/compiler/phases/3-transform/types.d.ts b/packages/svelte/src/compiler/phases/3-transform/types.d.ts
index 59c1bac268..887ad447b9 100644
--- a/packages/svelte/src/compiler/phases/3-transform/types.d.ts
+++ b/packages/svelte/src/compiler/phases/3-transform/types.d.ts
@@ -8,8 +8,5 @@ export interface TransformState {
 	readonly scope: Scope;
 	readonly scopes: Map<AST.SvelteNode, Scope>;
 
-	/** True if we're directly inside a `$derived(...)` expression (but not `$derived.by(...)`) */
-	readonly in_derived: boolean;
-
 	readonly state_fields: Map<string, StateField>;
 }