separate reaction.r into reaction.effects and reaction.deriveds

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

@@ -7,7 +7,6 @@ import {
 	remove_reactions,
 	set_signal_status
 } from '../runtime.js';
-import { push_reference } from './effects.js';
 import { default_equals, safe_equals } from './equality.js';
 
 /**
@@ -27,9 +26,9 @@ export function derived(fn) {
 		eq: default_equals,
 		f: flags,
 		fn,
-		r: null,
-		// @ts-expect-error
-		v: UNINITIALIZED,
+		effects: null,
+		deriveds: null,
+		v: /** @type {V} */ (UNINITIALIZED),
 		w: 0
 	};
 
@@ -38,7 +37,11 @@ export function derived(fn) {
 	}
 
 	if (current_reaction !== null) {
-		push_reference(current_reaction, signal);
+		if (current_reaction.deriveds === null) {
+			current_reaction.deriveds = [signal];
+		} else {
+			current_reaction.deriveds.push(signal);
+		}
 	}
 
 	return signal;
@@ -64,6 +67,6 @@ export function destroy_derived(signal) {
 	destroy_references(signal);
 	remove_reactions(signal, 0);
 	// @ts-expect-error `signal.i` cannot be `null` while the signal is alive
-	signal.fn = signal.r = signal.x = signal.b = signal.deps = signal.reactions = null;
+	signal.fn = signal.effects = signal.x = signal.b = signal.deps = signal.reactions = null;
 	set_signal_status(signal, DESTROYED);
 }

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

@@ -3,6 +3,7 @@ import {
 	current_block,
 	current_component_context,
 	current_effect,
+	current_reaction,
 	destroy_references,
 	flush_local_render_effects,
 	get,
@@ -17,20 +18,6 @@ import { set } from './sources.js';
 import { is_array } from '../utils.js';
 import { run_all } from '../../common.js';
 
-/**
- * @param {import('#client').Reaction} target_signal
- * @param {import('#client').Reaction} ref_signal
- * @returns {void}
- */
-export function push_reference(target_signal, ref_signal) {
-	const references = target_signal.r;
-	if (references === null) {
-		target_signal.r = [ref_signal];
-	} else {
-		references.push(ref_signal);
-	}
-}
-
 /**
  * @param {import('./types.js').EffectType} type
  * @param {(() => void | (() => void)) | ((b: import('#client').Block) => void | (() => void))} fn
@@ -47,7 +34,8 @@ function create_effect(type, fn, sync, block, schedule) {
 		f: type | DIRTY,
 		l: 0,
 		fn,
-		r: null,
+		effects: null,
+		deriveds: null,
 		v: null,
 		w: 0,
 		ctx: current_component_context,
@@ -56,8 +44,15 @@ function create_effect(type, fn, sync, block, schedule) {
 
 	if (current_effect !== null) {
 		signal.l = current_effect.l + 1;
-		if ((type & MANAGED) === 0) {
-			push_reference(current_effect, signal);
+	}
+
+	if ((type & MANAGED) === 0) {
+		if (current_reaction !== null) {
+			if (current_reaction.effects === null) {
+				current_reaction.effects = [signal];
+			} else {
+				current_reaction.effects.push(signal);
+			}
 		}
 	}
 
@@ -253,7 +248,7 @@ export function destroy_effect(signal) {
 	const destroy = signal.y;
 	destroy_references(signal);
 	remove_reactions(signal, 0);
-	signal.fn = signal.r = signal.y = signal.ctx = signal.block = signal.deps = null;
+	signal.fn = signal.effects = signal.y = signal.ctx = signal.block = signal.deps = null;
 	set_signal_status(signal, DESTROYED);
 	if (destroy !== null) {
 		if (is_array(destroy)) {

packages/svelte/src/internal/client/reactivity/types.d.ts

@@ -25,11 +25,10 @@ export interface Derived<V = unknown> extends Source<V> {
 	deps: null | Value[];
 	/** The derived function */
 	fn: () => V;
-
-	// TODO get rid of these
-
-	/** references: Anything that a signal owns */
-	r: null | Reaction[];
+	/** Effects created inside this signal */
+	effects: null | Effect[];
+	/** Deriveds created inside this signal */
+	deriveds: null | Derived[];
 }
 
 export interface DerivedDebug<V = unknown> extends Derived<V> {
@@ -49,8 +48,10 @@ export type Effect = {
 	f: number;
 	/** init: The function that we invoke for effects and computeds */
 	fn: null | (() => void | (() => void)) | ((b: Block, s: Signal) => void | (() => void));
-	/** references: Anything that a signal owns */
-	r: null | Reaction[];
+	/** Effects created inside this signal */
+	effects: null | Effect[];
+	/** Deriveds created inside this signal */
+	deriveds: null | Derived[];
 	/** value: The latest value for this signal, doubles as the teardown for effects */
 	v: null | Function;
 	/** level: the depth from the root signal, used for ordering render/pre-effects topologically **/

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

@@ -373,19 +373,18 @@ export function remove_reactions(signal, start_index) {
  * @returns {void}
  */
 export function destroy_references(signal) {
-	const references = signal.r;
-	signal.r = null;
-	if (references !== null) {
-		let i;
-		for (i = 0; i < references.length; i++) {
-			var reference = references[i];
-			if ((reference.f & DERIVED) !== 0) {
-				// TODO make signal.r only contain deriveds or effects
-				destroy_derived(/** @type {import('#client').Derived} */ (reference));
-			} else {
-				destroy_effect(/** @type {import('#client').Effect} */ (reference));
-			}
+	if (signal.effects) {
+		for (var i = 0; i < signal.effects.length; i += 1) {
+			destroy_effect(signal.effects[i]);
+		}
+		signal.effects = null;
+	}
+
+	if (signal.deriveds) {
+		for (var i = 0; i < signal.deriveds.length; i += 1) {
+			destroy_derived(signal.deriveds[i]);
 		}
+		signal.deriveds = null;
 	}
 }
 
@@ -822,7 +821,7 @@ export function invalidate_inner_signals(fn) {
  * @returns {void}
  */
 function mark_subtree_children_inert(signal, inert, visited_blocks) {
-	const references = signal.r;
+	const references = signal.effects;
 	if (references !== null) {
 		let i;
 		for (i = 0; i < references.length; i++) {