From 3f3cf9ff36608ecec9d45e3777eabc074e99f5e5 Mon Sep 17 00:00:00 2001
From: Rich Harris <rich.harris@vercel.com>
Date: Sun, 13 Jul 2025 18:21:10 -0400
Subject: [PATCH] chore: rename check_dirtiness -> is_dirty (#16359)

---
 .../svelte/src/internal/client/reactivity/effects.js   |  4 ++--
 .../svelte/src/internal/client/reactivity/sources.js   |  4 ++--
 packages/svelte/src/internal/client/runtime.js         | 10 +++++-----
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/packages/svelte/src/internal/client/reactivity/effects.js b/packages/svelte/src/internal/client/reactivity/effects.js
index 51c6805529..b6a40a68be 100644
--- a/packages/svelte/src/internal/client/reactivity/effects.js
+++ b/packages/svelte/src/internal/client/reactivity/effects.js
@@ -1,6 +1,6 @@
 /** @import { ComponentContext, ComponentContextLegacy, Derived, Effect, TemplateNode, TransitionManager } from '#client' */
 import {
-	check_dirtiness,
+	is_dirty,
 	active_effect,
 	active_reaction,
 	update_effect,
@@ -307,7 +307,7 @@ export function legacy_pre_effect_reset() {
 				set_signal_status(effect, MAYBE_DIRTY);
 			}
 
-			if (check_dirtiness(effect)) {
+			if (is_dirty(effect)) {
 				update_effect(effect);
 			}
 
diff --git a/packages/svelte/src/internal/client/reactivity/sources.js b/packages/svelte/src/internal/client/reactivity/sources.js
index f84312e31c..c04443c93e 100644
--- a/packages/svelte/src/internal/client/reactivity/sources.js
+++ b/packages/svelte/src/internal/client/reactivity/sources.js
@@ -12,7 +12,7 @@ import {
 	increment_write_version,
 	update_effect,
 	current_sources,
-	check_dirtiness,
+	is_dirty,
 	untracking,
 	is_destroying_effect,
 	push_reaction_value
@@ -218,7 +218,7 @@ export function internal_set(source, value) {
 				if ((effect.f & CLEAN) !== 0) {
 					set_signal_status(effect, MAYBE_DIRTY);
 				}
-				if (check_dirtiness(effect)) {
+				if (is_dirty(effect)) {
 					update_effect(effect);
 				}
 			}
diff --git a/packages/svelte/src/internal/client/runtime.js b/packages/svelte/src/internal/client/runtime.js
index 6477e2942a..5eca31e8cf 100644
--- a/packages/svelte/src/internal/client/runtime.js
+++ b/packages/svelte/src/internal/client/runtime.js
@@ -163,7 +163,7 @@ export function increment_write_version() {
  * @param {Reaction} reaction
  * @returns {boolean}
  */
-export function check_dirtiness(reaction) {
+export function is_dirty(reaction) {
 	var flags = reaction.f;
 
 	if ((flags & DIRTY) !== 0) {
@@ -212,7 +212,7 @@ export function check_dirtiness(reaction) {
 			for (i = 0; i < length; i++) {
 				dependency = dependencies[i];
 
-				if (check_dirtiness(/** @type {Derived} */ (dependency))) {
+				if (is_dirty(/** @type {Derived} */ (dependency))) {
 					update_derived(/** @type {Derived} */ (dependency));
 				}
 
@@ -588,7 +588,7 @@ function flush_queued_effects(effects) {
 		var effect = effects[i];
 
 		if ((effect.f & (DESTROYED | INERT)) === 0) {
-			if (check_dirtiness(effect)) {
+			if (is_dirty(effect)) {
 				var wv = write_version;
 
 				update_effect(effect);
@@ -675,7 +675,7 @@ function process_effects(root) {
 			} else if (is_branch) {
 				effect.f ^= CLEAN;
 			} else {
-				if (check_dirtiness(effect)) {
+				if (is_dirty(effect)) {
 					update_effect(effect);
 				}
 			}
@@ -802,7 +802,7 @@ export function get(signal) {
 	if (is_derived && !is_destroying_effect) {
 		derived = /** @type {Derived} */ (signal);
 
-		if (check_dirtiness(derived)) {
+		if (is_dirty(derived)) {
 			update_derived(derived);
 		}
 	}