From 64e4a4bd2a5a88f76c5b21ca8574db18b1f8a538 Mon Sep 17 00:00:00 2001
From: Rich Harris <rich.harris@vercel.com>
Date: Sat, 19 Jul 2025 17:23:36 -0400
Subject: [PATCH] tweak

---
 .../client/visitors/VariableDeclaration.js    | 23 +++++++------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/packages/svelte/src/compiler/phases/3-transform/client/visitors/VariableDeclaration.js b/packages/svelte/src/compiler/phases/3-transform/client/visitors/VariableDeclaration.js
index dd9ae4f45c..0998dc4778 100644
--- a/packages/svelte/src/compiler/phases/3-transform/client/visitors/VariableDeclaration.js
+++ b/packages/svelte/src/compiler/phases/3-transform/client/visitors/VariableDeclaration.js
@@ -271,21 +271,14 @@ export function VariableDeclaration(node, context) {
 						context.state.transform[id.name] = { read: get_value };
 
 						const expression = /** @type {Expression} */ (context.visit(b.thunk(value)));
-						const call = b.call('$.derived', expression);
-						declarations.push(
-							b.declarator(
-								id,
-								dev
-									? b.call(
-											'$.tag',
-											call,
-											b.literal(
-												`[$derived ${declarator.id.type === 'ArrayPattern' ? 'iterable' : 'object'}]`
-											)
-										)
-									: call
-							)
-						);
+						let call = b.call('$.derived', expression);
+
+						if (dev) {
+							const label = `[$derived ${declarator.id.type === 'ArrayPattern' ? 'iterable' : 'object'}]`;
+							call = b.call('$.tag', call, b.literal(label));
+						}
+
+						declarations.push(b.declarator(id, call));
 					}
 
 					for (const path of paths) {