merge main

documentation/docs/03-template-syntax/11-bind.md

@@ -219,11 +219,10 @@ You can give the `<select>` a default value by adding a `selected` attribute to
 - [`volume`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/volume)
 - [`muted`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/muted)
 
-...and seven readonly ones:
+...and six readonly ones:
 
 - [`duration`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/duration)
 - [`buffered`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/buffered)
-- [`paused`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/paused)
 - [`seekable`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/seekable)
 - [`seeking`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/seeking_event)
 - [`ended`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/ended)

packages/svelte/CHANGELOG.md

@@ -1,5 +1,13 @@
 # svelte
 
+## 5.19.7
+
+### Patch Changes
+
+- chore: remove unused code from signal logic ([#15195](https://github.com/sveltejs/svelte/pull/15195))
+
+- fix: encounter svelte:element in blocks as sibling during pruning css ([#15165](https://github.com/sveltejs/svelte/pull/15165))
+
 ## 5.19.6
 
 ### Patch Changes

packages/svelte/package.json

@@ -2,7 +2,7 @@
   "name": "svelte",
   "description": "Cybernetically enhanced web apps",
   "license": "MIT",
-  "version": "5.19.6",
+  "version": "5.19.7",
   "type": "module",
   "types": "./types/index.d.ts",
   "engines": {

packages/svelte/src/compiler/phases/2-analyze/css/css-prune.js

@@ -933,11 +933,9 @@ function get_possible_element_siblings(node, adjacent_only, seen = new Set()) {
 /**
  * @param {Compiler.AST.EachBlock | Compiler.AST.IfBlock | Compiler.AST.AwaitBlock | Compiler.AST.KeyBlock | Compiler.AST.SlotElement} node
  * @param {boolean} adjacent_only
- * @returns {Map<Compiler.AST.RegularElement, NodeExistsValue>}
+ * @returns {Map<Compiler.AST.RegularElement | Compiler.AST.SvelteElement, NodeExistsValue>}
  */
 function get_possible_last_child(node, adjacent_only) {
-	/** @typedef {Map<Compiler.AST.RegularElement, NodeExistsValue>} NodeMap */
-
 	/** @type {Array<Compiler.AST.Fragment | undefined | null>} */
 	let fragments = [];
 
@@ -960,7 +958,7 @@ function get_possible_last_child(node, adjacent_only) {
 			break;
 	}
 
-	/** @type {NodeMap} */
+	/** @type {Map<Compiler.AST.RegularElement | Compiler.AST.SvelteElement, NodeExistsValue>} NodeMap */
 	const result = new Map();
 
 	let exhaustive = node.type !== 'SlotElement';
@@ -1001,9 +999,10 @@ function has_definite_elements(result) {
 }
 
 /**
- * @template T
+ * @template T2
- * @param {Map<T, NodeExistsValue>} from
+ * @template {T2} T1
- * @param {Map<T, NodeExistsValue>} to
+ * @param {Map<T1, NodeExistsValue>} from
+ * @param {Map<T2, NodeExistsValue>} to
  * @returns {void}
  */
 function add_to_map(from, to) {
@@ -1028,7 +1027,7 @@ function higher_existence(exist1, exist2) {
  * @param {boolean} adjacent_only
  */
 function loop_child(children, adjacent_only) {
-	/** @type {Map<Compiler.AST.RegularElement, NodeExistsValue>} */
+	/** @type {Map<Compiler.AST.RegularElement | Compiler.AST.SvelteElement, NodeExistsValue>} */
 	const result = new Map();
 
 	let i = children.length;
@@ -1041,6 +1040,8 @@ function loop_child(children, adjacent_only) {
 			if (adjacent_only) {
 				break;
 			}
+		} else if (child.type === 'SvelteElement') {
+			result.set(child, NODE_PROBABLY_EXISTS);
 		} else if (is_block(child)) {
 			const child_result = get_possible_last_child(child, adjacent_only);
 			add_to_map(child_result, result);

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

@@ -256,15 +256,3 @@ export function update_derived(derived) {
 		derived.wv = increment_write_version();
 	}
 }
-
-/**
- * @param {Derived} derived
- * @returns {void}
- */
-export function destroy_derived(derived) {
-	destroy_derived_effects(derived);
-	remove_reactions(derived, 0);
-	set_signal_status(derived, DESTROYED);
-
-	derived.v = derived.deps = derived.ctx = derived.reactions = null;
-}

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

@@ -55,7 +55,7 @@ export function set_text(text, value) {
 	if (str !== (text.__t ??= text.nodeValue)) {
 		// @ts-expect-error
 		text.__t = str;
-		text.nodeValue = str == null ? '' : str + '';
+		text.nodeValue = str + '';
 	}
 }
 

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

@@ -34,9 +34,7 @@ import {
 } from './dom/task.js';
 import { internal_set } from './reactivity/sources.js';
 import {
-	destroy_derived,
 	destroy_derived_effects,
-	execute_derived,
 	from_async_derived,
 	recent_async_deriveds,
 	update_derived
@@ -957,15 +955,6 @@ export function get(signal) {
 	var flags = signal.f;
 	var is_derived = (flags & DERIVED) !== 0;
 
-	// If the derived is destroyed, just execute it again without retaining
-	// its memoisation properties as the derived is stale
-	if (is_derived && (flags & DESTROYED) !== 0) {
-		var value = execute_derived(/** @type {Derived} */ (signal));
-		// Ensure the derived remains destroyed
-		destroy_derived(/** @type {Derived} */ (signal));
-		return value;
-	}
-
 	if (captured_signals !== null) {
 		captured_signals.add(signal);
 	}

packages/svelte/src/version.js

@@ -4,5 +4,5 @@
  * The current version, as set in package.json.
  * @type {string}
  */
-export const VERSION = '5.19.6';
+export const VERSION = '5.19.7';
 export const PUBLIC_VERSION = '5';

packages/svelte/tests/css/samples/general-siblings-combinator-svelteelement/_config.js

@@ -5,15 +5,15 @@ export default test({
 		{
 			code: 'css_unused_selector',
 			end: {
-				character: 496,
+				character: 627,
 				column: 10,
-				line: 26
+				line: 32
 			},
 			message: 'Unused CSS selector ".x + .bar"',
 			start: {
-				character: 487,
+				character: 618,
 				column: 1,
-				line: 26
+				line: 32
 			}
 		}
 	]

packages/svelte/tests/css/samples/general-siblings-combinator-svelteelement/expected.css

@@ -9,5 +9,8 @@
 	.x.svelte-xyz ~ .foo:where(.svelte-xyz) span:where(.svelte-xyz) { color: green; }
 	.x.svelte-xyz ~ .bar:where(.svelte-xyz) { color: green; }
 
+	.z.svelte-xyz + .z:where(.svelte-xyz) { color: green; }
+	.z.svelte-xyz ~ .z:where(.svelte-xyz) { color: green; }
+
 	/* no match */
 	/* (unused) .x + .bar { color: green; }*/

packages/svelte/tests/css/samples/general-siblings-combinator-svelteelement/input.svelte

@@ -10,6 +10,9 @@
 	</p>
 	<p class="bar">bar</p>
 </div>
+{#each [1]}
+	<svelte:element class="z" this={tag}></svelte:element>
+{/each}
 
 <style>
 	.before + .foo { color: green; }
@@ -22,6 +25,9 @@
 	.x ~ .foo span { color: green; }
 	.x ~ .bar { color: green; }
 
+	.z + .z { color: green; }
+	.z ~ .z { color: green; }
+
 	/* no match */
 	.x + .bar { color: green; }
 </style>