cleanup unused logic

Author: trueadm

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

@@ -3,7 +3,6 @@ import { DEV } from 'esm-env';
 import {
 	CLEAN,
 	DERIVED,
-	DESTROYED,
 	DIRTY,
 	EFFECT_HAS_DERIVED,
 	MAYBE_DIRTY,
@@ -12,7 +11,6 @@ import {
 import {
 	active_reaction,
 	active_effect,
-	remove_reactions,
 	set_signal_status,
 	skip_reaction,
 	update_reaction,

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

@@ -241,26 +241,6 @@ export function spread_props(...props) {
 	return new Proxy({ props }, spread_props_handler);
 }
 
-/**
- * @template T
- * @param {() => T} fn
- * @returns {T}
- */
-function with_parent_branch(fn) {
-	var effect = active_effect;
-	var previous_effect = active_effect;
-
-	while (effect !== null && (effect.f & (BRANCH_EFFECT | ROOT_EFFECT)) === 0) {
-		effect = effect.parent;
-	}
-	try {
-		set_active_effect(effect);
-		return fn();
-	} finally {
-		set_active_effect(previous_effect);
-	}
-}
-
 /**
  * This function is responsible for synchronizing a possibly bound prop with the inner component state.
  * It is used whenever the compiler sees that the component writes to the prop, or when it has a default prop_value.
@@ -335,8 +315,8 @@ export function prop(props, key, flags, fallback) {
 	} else {
 		// Svelte 4 did not trigger updates when a primitive value was updated to the same value.
 		// Replicate that behavior through using a derived
-		var derived_getter = with_parent_branch(() =>
-			(immutable ? derived : derived_safe_equal)(() => /** @type {V} */ (props[key]))
+		var derived_getter = (immutable ? derived : derived_safe_equal)(
+			() => /** @type {V} */ (props[key])
 		);
 		derived_getter.f |= LEGACY_DERIVED_PROP;
 		getter = () => {
@@ -380,21 +360,19 @@ export function prop(props, key, flags, fallback) {
 	// The derived returns the current value. The underlying mutable
 	// source is written to from various places to persist this value.
 	var inner_current_value = mutable_source(prop_value);
-	var current_value = with_parent_branch(() =>
-		derived(() => {
-			var parent_value = getter();
-			var child_value = get(inner_current_value);
-
-			if (from_child) {
-				from_child = false;
-				was_from_child = true;
-				return child_value;
-			}
+	var current_value = derived(() => {
+		var parent_value = getter();
+		var child_value = get(inner_current_value);
+
+		if (from_child) {
+			from_child = false;
+			was_from_child = true;
+			return child_value;
+		}
 
-			was_from_child = false;
-			return (inner_current_value.v = parent_value);
-		})
-	);
+		was_from_child = false;
+		return (inner_current_value.v = parent_value);
+	});
 
 	if (!immutable) current_value.equals = safe_equals;
 

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

@@ -206,7 +206,7 @@ export function check_dirtiness(reaction) {
 					// If the derived is owned by another derived then mark it as owned agaub
 					// as the derived value might have been referenced in a different context
 					// and now has a reacive context managing it
-					derived.f ^= UNOWNED;
+					// derived.f ^= UNOWNED;
 				}
 			}