move code where it belongs

packages/svelte/src/internal/client/reactivity/batch.js

@@ -17,7 +17,6 @@ import { get_pending_boundary } from '../dom/blocks/boundary.js';
 import {
 	active_effect,
 	check_dirtiness,
-	dev_effect_stack,
 	is_updating_effect,
 	set_is_updating_effect,
 	set_signal_status,
@@ -45,6 +44,9 @@ export let current_batch = null;
  */
 export let batch_deriveds = null;
 
+/** @type {Effect[]} Stack of effects, dev only */
+export let dev_effect_stack = [];
+
 /** @type {Effect[]} */
 let queued_root_effects = [];
 
@@ -365,7 +367,7 @@ export class Batch {
 
 			last_scheduled_effect = null;
 			if (DEV) {
-				dev_effect_stack.length = 0;
+				dev_effect_stack = [];
 			}
 		}
 	}
@@ -469,7 +471,7 @@ export function flushSync(fn) {
 			last_scheduled_effect = null;
 
 			if (DEV) {
-				dev_effect_stack.length = 0;
+				dev_effect_stack = [];
 			}
 
 			return /** @type {T} */ (result);
@@ -485,7 +487,7 @@ function log_effect_stack() {
 		'Last ten effects were: ',
 		dev_effect_stack.slice(-10).map((d) => d.fn)
 	);
-	dev_effect_stack.length = 0;
+	dev_effect_stack = [];
 }
 
 function infinite_loop_guard() {

packages/svelte/src/internal/client/runtime.js

@@ -43,7 +43,13 @@ import {
 	set_dev_stack
 } from './context.js';
 import * as w from './warnings.js';
-import { Batch, batch_deriveds, flushSync, schedule_effect } from './reactivity/batch.js';
+import {
+	Batch,
+	batch_deriveds,
+	dev_effect_stack,
+	flushSync,
+	schedule_effect
+} from './reactivity/batch.js';
 import { handle_error } from './error-handling.js';
 import { UNINITIALIZED } from '../../constants.js';
 
@@ -61,9 +67,6 @@ export function set_is_destroying_effect(value) {
 	is_destroying_effect = value;
 }
 
-/** @type {Effect[]} Stack of effects, dev only */
-export let dev_effect_stack = [];
-
 /** @type {null | Reaction} */
 export let active_reaction = null;