simplify

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

@@ -1,12 +1,4 @@
-import {
-	CLEAN,
-	DERIVED,
-	DESTROYED,
-	DIRTY,
-	DISCONNECTED,
-	MAYBE_DIRTY,
-	UNOWNED
-} from '../constants.js';
+import { CLEAN, DERIVED, DESTROYED, DIRTY, MAYBE_DIRTY, UNOWNED } from '../constants.js';
 import {
 	current_reaction,
 	current_effect,
@@ -129,24 +121,3 @@ export function destroy_derived(signal) {
 		signal.fn =
 			null;
 }
-
-/**
- * @param {import('#client').Derived} derived
- */
-export function reconnect_derived(derived) {
-	var deps = derived.deps;
-
-	if (deps !== null) {
-		for (var i = 0; i < deps.length; i++) {
-			var dep = deps[i];
-			var reactions = dep.reactions;
-			if (reactions === null) {
-				dep.reactions = [derived];
-			} else if (!reactions.includes(derived)) {
-				reactions.push(derived);
-			}
-		}
-	}
-
-	derived.f ^= DISCONNECTED;
-}

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

@@ -34,7 +34,7 @@ import {
 import { flush_tasks } from './dom/task.js';
 import { add_owner } from './dev/ownership.js';
 import { mutate, set, source } from './reactivity/sources.js';
-import { reconnect_derived, update_derived } from './reactivity/deriveds.js';
+import { update_derived } from './reactivity/deriveds.js';
 import * as e from './errors.js';
 import { lifecycle_outside_component } from '../shared/errors.js';
 
@@ -172,6 +172,14 @@ export function check_dirtiness(reaction) {
 		if (dependencies !== null) {
 			var is_unowned = (flags & UNOWNED) !== 0;
 
+			if ((flags & DISCONNECTED) !== 0) {
+				for (var i = 0; i < dependencies.length; i++) {
+					(dependencies[i].reactions ??= []).push(reaction);
+				}
+
+				reaction.f ^= DISCONNECTED;
+			}
+
 			for (var i = 0; i < dependencies.length; i++) {
 				var dependency = dependencies[i];
 
@@ -193,10 +201,6 @@ export function check_dirtiness(reaction) {
 					}
 				}
 			}
-
-			if ((flags & DISCONNECTED) !== 0) {
-				reconnect_derived(/** @type {import('#client').Derived} */ (reaction));
-			}
 		}
 
 		set_signal_status(reaction, CLEAN);
@@ -774,10 +778,6 @@ export function get(signal) {
 		if (check_dirtiness(derived)) {
 			update_derived(derived);
 		}
-
-		if ((flags & DISCONNECTED) !== 0) {
-			reconnect_derived(derived);
-		}
 	}
 
 	return signal.v;