rename from_async_derived -> current_async_derived

Author: Rich-Harris

packages/svelte/src/internal/client/dom/blocks/boundary.js

@@ -22,7 +22,7 @@ import { get_next_sibling } from '../operations.js';
 import { queue_micro_task } from '../task.js';
 import * as e from '../../errors.js';
 import { DEV } from 'esm-env';
-import { from_async_derived, set_from_async_derived } from '../../reactivity/deriveds.js';
+import { current_async_effect, set_from_async_derived } from '../../reactivity/deriveds.js';
 import { Batch } from '../../reactivity/batch.js';
 import { internal_set, source } from '../../reactivity/sources.js';
 import { tag } from '../../dev/tracing.js';
@@ -397,7 +397,7 @@ export function capture(track = true) {
 	var previous_component_context = component_context;
 
 	if (DEV && !track) {
-		var was_from_async_derived = from_async_derived;
+		var previous_async_effect = current_async_effect;
 	}
 
 	return function restore() {
@@ -408,7 +408,7 @@ export function capture(track = true) {
 		}
 
 		if (DEV) {
-			set_from_async_derived(track ? null : was_from_async_derived);
+			set_from_async_derived(track ? null : previous_async_effect);
 		}
 
 		// prevent the active effect from outstaying its welcome

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

@@ -36,11 +36,11 @@ import { UNINITIALIZED } from '../../../constants.js';
 import { current_batch } from './batch.js';
 
 /** @type {Effect | null} */
-export let from_async_derived = null;
+export let current_async_effect = null;
 
 /** @param {Effect | null} v */
 export function set_from_async_derived(v) {
-	from_async_derived = v;
+	current_async_effect = v;
 }
 
 export const recent_async_deriveds = new Set();
@@ -115,15 +115,15 @@ export function async_derived(fn, location) {
 	var should_suspend = !active_reaction;
 
 	render_effect(() => {
-		if (DEV) from_async_derived = active_effect;
+		if (DEV) current_async_effect = active_effect;
 
 		try {
 			var p = fn();
 		} catch (error) {
 			p = Promise.reject(error);
 		}
 
-		if (DEV) from_async_derived = null;
+		if (DEV) current_async_effect = null;
 
 		promise =
 			prev === null
@@ -150,7 +150,7 @@ export function async_derived(fn, location) {
 		const handler = (value, error = undefined) => {
 			prev = null;
 
-			from_async_derived = null;
+			current_async_effect = null;
 
 			if (!pending) batch.restore();
 

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

@@ -33,7 +33,7 @@ import { internal_set, old_values } from './reactivity/sources.js';
 import {
 	destroy_derived_effects,
 	execute_derived,
-	from_async_derived,
+	current_async_effect,
 	recent_async_deriveds,
 	update_derived
 } from './reactivity/deriveds.js';
@@ -869,9 +869,10 @@ export function get(signal) {
 	}
 
 	if (DEV) {
-		if (from_async_derived) {
-			var tracking = (from_async_derived.f & REACTION_IS_UPDATING) !== 0;
-			var was_read = from_async_derived.deps !== null && from_async_derived.deps.includes(signal);
+		if (current_async_effect) {
+			var tracking = (current_async_effect.f & REACTION_IS_UPDATING) !== 0;
+			var was_read =
+				current_async_effect.deps !== null && current_async_effect.deps.includes(signal);
 
 			if (!tracking && !was_read) {
 				w.await_reactivity_loss(/** @type {string} */ (signal.label));