fix: vite

node_modules/svelte/src/action/public.d.ts

@@ -0,0 +1,69 @@
+/**
+ * Actions can return an object containing the two properties defined in this interface. Both are optional.
+ * - update: An action can have a parameter. This method will be called whenever that parameter changes,
+ *   immediately after Svelte has applied updates to the markup. `ActionReturn` and `ActionReturn<undefined>` both
+ *   mean that the action accepts no parameters.
+ * - destroy: Method that is called after the element is unmounted
+ *
+ * Additionally, you can specify which additional attributes and events the action enables on the applied element.
+ * This applies to TypeScript typings only and has no effect at runtime.
+ *
+ * Example usage:
+ * ```ts
+ * interface Attributes {
+ * 	newprop?: string;
+ * 	'on:event': (e: CustomEvent<boolean>) => void;
+ * }
+ *
+ * export function myAction(node: HTMLElement, parameter: Parameter): ActionReturn<Parameter, Attributes> {
+ * 	// ...
+ * 	return {
+ * 		update: (updatedParameter) => {...},
+ * 		destroy: () => {...}
+ * 	};
+ * }
+ * ```
+ */
+export interface ActionReturn<
+	Parameter = undefined,
+	Attributes extends Record<string, any> = Record<never, any>
+> {
+	update?: (parameter: Parameter) => void;
+	destroy?: () => void;
+	/**
+	 * ### DO NOT USE THIS
+	 * This exists solely for type-checking and has no effect at runtime.
+	 * Set this through the `Attributes` generic instead.
+	 */
+	$$_attributes?: Attributes;
+}
+
+/**
+ * Actions are functions that are called when an element is created.
+ * You can use this interface to type such actions.
+ * The following example defines an action that only works on `<div>` elements
+ * and optionally accepts a parameter which it has a default value for:
+ * ```ts
+ * export const myAction: Action<HTMLDivElement, { someProperty: boolean } | undefined> = (node, param = { someProperty: true }) => {
+ *   // ...
+ * }
+ * ```
+ * `Action<HTMLDivElement>` and `Action<HTMLDivElement, undefined>` both signal that the action accepts no parameters.
+ *
+ * You can return an object with methods `update` and `destroy` from the function and type which additional attributes and events it has.
+ * See interface `ActionReturn` for more details.
+ */
+export interface Action<
+	Element = HTMLElement,
+	Parameter = undefined,
+	Attributes extends Record<string, any> = Record<never, any>
+> {
+	<Node extends Element>(
+		...args: undefined extends Parameter
+			? [node: Node, parameter?: Parameter]
+			: [node: Node, parameter: Parameter]
+	): void | ActionReturn<Parameter, Attributes>;
+}
+
+// Implementation notes:
+// - undefined extends X instead of X extends undefined makes this work better with both strict and nonstrict mode

node_modules/svelte/src/ambient.d.ts

@@ -0,0 +1,502 @@
+declare module '*.svelte' {
+	// use prettier-ignore for a while because of https://github.com/sveltejs/language-tools/commit/026111228b5814a9109cc4d779d37fb02955fb8b
+	// prettier-ignore
+	import { SvelteComponent } from 'svelte'
+	import { LegacyComponentType } from 'svelte/legacy';
+	const Comp: LegacyComponentType;
+	type Comp = SvelteComponent;
+	export default Comp;
+}
+
+/**
+ * Declares reactive state.
+ *
+ * Example:
+ * ```ts
+ * let count = $state(0);
+ * ```
+ *
+ * https://svelte.dev/docs/svelte/$state
+ *
+ * @param initial The initial value
+ */
+declare function $state<T>(initial: T): T;
+declare function $state<T>(): T | undefined;
+
+declare namespace $state {
+	type Primitive = string | number | boolean | null | undefined;
+
+	type TypedArray =
+		| Int8Array
+		| Uint8Array
+		| Uint8ClampedArray
+		| Int16Array
+		| Uint16Array
+		| Int32Array
+		| Uint32Array
+		| Float32Array
+		| Float64Array
+		| BigInt64Array
+		| BigUint64Array;
+
+	/** The things that `structuredClone` can handle — https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm */
+	export type Cloneable =
+		| ArrayBuffer
+		| DataView
+		| Date
+		| Error
+		| Map<any, any>
+		| RegExp
+		| Set<any>
+		| TypedArray
+		// web APIs
+		| Blob
+		| CryptoKey
+		| DOMException
+		| DOMMatrix
+		| DOMMatrixReadOnly
+		| DOMPoint
+		| DOMPointReadOnly
+		| DOMQuad
+		| DOMRect
+		| DOMRectReadOnly
+		| File
+		| FileList
+		| FileSystemDirectoryHandle
+		| FileSystemFileHandle
+		| FileSystemHandle
+		| ImageBitmap
+		| ImageData
+		| RTCCertificate
+		| VideoFrame;
+
+	/** Turn `SvelteDate`, `SvelteMap` and `SvelteSet` into their non-reactive counterparts. (`URL` is uncloneable.) */
+	type NonReactive<T> = T extends Date
+		? Date
+		: T extends Map<infer K, infer V>
+			? Map<K, V>
+			: T extends Set<infer K>
+				? Set<K>
+				: T;
+
+	type Snapshot<T> = T extends Primitive
+		? T
+		: T extends Cloneable
+			? NonReactive<T>
+			: T extends { toJSON(): infer R }
+				? R
+				: T extends Array<infer U>
+					? Array<Snapshot<U>>
+					: T extends object
+						? T extends { [key: string]: any }
+							? { [K in keyof T]: Snapshot<T[K]> }
+							: never
+						: never;
+
+	/**
+	 * Declares state that is _not_ made deeply reactive — instead of mutating it,
+	 * you must reassign it.
+	 *
+	 * Example:
+	 * ```ts
+	 * <script>
+	 *   let items = $state.raw([0]);
+	 *
+	 *   const addItem = () => {
+	 *     items = [...items, items.length];
+	 *   };
+	 * </script>
+	 *
+	 * <button on:click={addItem}>
+	 *   {items.join(', ')}
+	 * </button>
+	 * ```
+	 *
+	 * https://svelte.dev/docs/svelte/$state#$state.raw
+	 *
+	 * @param initial The initial value
+	 */
+	export function raw<T>(initial: T): T;
+	export function raw<T>(): T | undefined;
+	/**
+	 * To take a static snapshot of a deeply reactive `$state` proxy, use `$state.snapshot`:
+	 *
+	 * Example:
+	 * ```ts
+	 * <script>
+	 *   let counter = $state({ count: 0 });
+	 *
+	 *   function onclick() {
+	 *     // Will log `{ count: ... }` rather than `Proxy { ... }`
+	 *     console.log($state.snapshot(counter));
+	 *   };
+	 * </script>
+	 * ```
+	 *
+	 * https://svelte.dev/docs/svelte/$state#$state.snapshot
+	 *
+	 * @param state The value to snapshot
+	 */
+	export function snapshot<T>(state: T): Snapshot<T>;
+
+	// prevent intellisense from being unhelpful
+	/** @deprecated */
+	export const apply: never;
+	/** @deprecated */
+	// @ts-ignore
+	export const arguments: never;
+	/** @deprecated */
+	export const bind: never;
+	/** @deprecated */
+	export const call: never;
+	/** @deprecated */
+	export const caller: never;
+	/** @deprecated */
+	export const length: never;
+	/** @deprecated */
+	export const name: never;
+	/** @deprecated */
+	export const prototype: never;
+	/** @deprecated */
+	export const toString: never;
+}
+
+/**
+ * Declares derived state, i.e. one that depends on other state variables.
+ * The expression inside `$derived(...)` should be free of side-effects.
+ *
+ * Example:
+ * ```ts
+ * let double = $derived(count * 2);
+ * ```
+ *
+ * https://svelte.dev/docs/svelte/$derived
+ *
+ * @param expression The derived state expression
+ */
+declare function $derived<T>(expression: T): T;
+
+declare namespace $derived {
+	/**
+	 * Sometimes you need to create complex derivations that don't fit inside a short expression.
+	 * In these cases, you can use `$derived.by` which accepts a function as its argument.
+	 *
+	 * Example:
+	 * ```ts
+	 * let total = $derived.by(() => {
+	 *   let result = 0;
+	 *	 for (const n of numbers) {
+	 *	   result += n;
+	 *   }
+	 *   return result;
+	 * });
+	 * ```
+	 *
+	 * https://svelte.dev/docs/svelte/$derived#$derived.by
+	 */
+	export function by<T>(fn: () => T): T;
+
+	// prevent intellisense from being unhelpful
+	/** @deprecated */
+	export const apply: never;
+	/** @deprecated */
+	// @ts-ignore
+	export const arguments: never;
+	/** @deprecated */
+	export const bind: never;
+	/** @deprecated */
+	export const call: never;
+	/** @deprecated */
+	export const caller: never;
+	/** @deprecated */
+	export const length: never;
+	/** @deprecated */
+	export const name: never;
+	/** @deprecated */
+	export const prototype: never;
+	/** @deprecated */
+	export const toString: never;
+}
+
+/**
+ * Runs code when a component is mounted to the DOM, and then whenever its dependencies change, i.e. `$state` or `$derived` values.
+ * The timing of the execution is after the DOM has been updated.
+ *
+ * Example:
+ * ```ts
+ * $effect(() => console.log('The count is now ' + count));
+ * ```
+ *
+ * If you return a function from the effect, it will be called right before the effect is run again, or when the component is unmounted.
+ *
+ * Does not run during server side rendering.
+ *
+ * https://svelte.dev/docs/svelte/$effect
+ * @param fn The function to execute
+ */
+declare function $effect(fn: () => void | (() => void)): void;
+
+declare namespace $effect {
+	/**
+	 * Runs code right before a component is mounted to the DOM, and then whenever its dependencies change, i.e. `$state` or `$derived` values.
+	 * The timing of the execution is right before the DOM is updated.
+	 *
+	 * Example:
+	 * ```ts
+	 * $effect.pre(() => console.log('The count is now ' + count));
+	 * ```
+	 *
+	 * If you return a function from the effect, it will be called right before the effect is run again, or when the component is unmounted.
+	 *
+	 * Does not run during server side rendering.
+	 *
+	 * https://svelte.dev/docs/svelte/$effect#$effect.pre
+	 * @param fn The function to execute
+	 */
+	export function pre(fn: () => void | (() => void)): void;
+
+	/**
+	 * The `$effect.tracking` rune is an advanced feature that tells you whether or not the code is running inside a tracking context, such as an effect or inside your template.
+	 *
+	 * Example:
+	 * ```svelte
+	 * <script>
+	 *   console.log('in component setup:', $effect.tracking()); // false
+	 *
+	 *   $effect(() => {
+	 *     console.log('in effect:', $effect.tracking()); // true
+	 *   });
+	 * </script>
+	 *
+	 * <p>in template: {$effect.tracking()}</p> <!-- true -->
+	 * ```
+	 *
+	 * This allows you to (for example) add things like subscriptions without causing memory leaks, by putting them in child effects.
+	 *
+	 * https://svelte.dev/docs/svelte/$effect#$effect.tracking
+	 */
+	export function tracking(): boolean;
+
+	/**
+	 * The `$effect.root` rune is an advanced feature that creates a non-tracked scope that doesn't auto-cleanup. This is useful for
+	 * nested effects that you want to manually control. This rune also allows for creation of effects outside of the component
+	 * initialisation phase.
+	 *
+	 * Example:
+	 * ```svelte
+	 * <script>
+	 *   let count = $state(0);
+	 *
+	 *   const cleanup = $effect.root(() => {
+	 *	    $effect(() => {
+	 *				console.log(count);
+	 *			})
+	 *
+	 *      return () => {
+	 *        console.log('effect root cleanup');
+	 * 			}
+	 *   });
+	 * </script>
+	 *
+	 * <button onclick={() => cleanup()}>cleanup</button>
+	 * ```
+	 *
+	 * https://svelte.dev/docs/svelte/$effect#$effect.root
+	 */
+	export function root(fn: () => void | (() => void)): () => void;
+
+	// prevent intellisense from being unhelpful
+	/** @deprecated */
+	export const apply: never;
+	/** @deprecated */
+	// @ts-ignore
+	export const arguments: never;
+	/** @deprecated */
+	export const bind: never;
+	/** @deprecated */
+	export const call: never;
+	/** @deprecated */
+	export const caller: never;
+	/** @deprecated */
+	export const length: never;
+	/** @deprecated */
+	export const name: never;
+	/** @deprecated */
+	export const prototype: never;
+	/** @deprecated */
+	export const toString: never;
+}
+
+/**
+ * Declares the props that a component accepts. Example:
+ *
+ * ```ts
+ * let { optionalProp = 42, requiredProp, bindableProp = $bindable() }: { optionalProp?: number; requiredProps: string; bindableProp: boolean } = $props();
+ * ```
+ *
+ * https://svelte.dev/docs/svelte/$props
+ */
+declare function $props(): any;
+
+declare namespace $props {
+	// prevent intellisense from being unhelpful
+	/** @deprecated */
+	export const apply: never;
+	/** @deprecated */
+	// @ts-ignore
+	export const arguments: never;
+	/** @deprecated */
+	export const bind: never;
+	/** @deprecated */
+	export const call: never;
+	/** @deprecated */
+	export const caller: never;
+	/** @deprecated */
+	export const length: never;
+	/** @deprecated */
+	export const name: never;
+	/** @deprecated */
+	export const prototype: never;
+	/** @deprecated */
+	export const toString: never;
+}
+
+/**
+ * Declares a prop as bindable, meaning the parent component can use `bind:propName={value}` to bind to it.
+ *
+ * ```ts
+ * let { propName = $bindable() }: { propName: boolean } = $props();
+ * ```
+ *
+ * https://svelte.dev/docs/svelte/$bindable
+ */
+declare function $bindable<T>(fallback?: T): T;
+
+declare namespace $bindable {
+	// prevent intellisense from being unhelpful
+	/** @deprecated */
+	export const apply: never;
+	/** @deprecated */
+	// @ts-ignore
+	export const arguments: never;
+	/** @deprecated */
+	export const bind: never;
+	/** @deprecated */
+	export const call: never;
+	/** @deprecated */
+	export const caller: never;
+	/** @deprecated */
+	export const length: never;
+	/** @deprecated */
+	export const name: never;
+	/** @deprecated */
+	export const prototype: never;
+	/** @deprecated */
+	export const toString: never;
+}
+
+/**
+ * Inspects one or more values whenever they, or the properties they contain, change. Example:
+ *
+ * ```ts
+ * $inspect(someValue, someOtherValue)
+ * ```
+ *
+ * `$inspect` returns a `with` function, which you can invoke with a callback function that
+ * will be called with the value and the event type (`'init'` or `'update'`) on every change.
+ * By default, the values will be logged to the console.
+ *
+ * ```ts
+ * $inspect(x).with(console.trace);
+ * $inspect(x, y).with(() => { debugger; });
+ * ```
+ *
+ * https://svelte.dev/docs/svelte/$inspect
+ */
+declare function $inspect<T extends any[]>(
+	...values: T
+): { with: (fn: (type: 'init' | 'update', ...values: T) => void) => void };
+
+declare namespace $inspect {
+	/**
+	 * Tracks which reactive state changes caused an effect to re-run. Must be the first
+	 * statement of a function body. Example:
+	 *
+	 * ```svelte
+	 * <script>
+	 *   let count = $state(0);
+	 *
+	 *   $effect(() => {
+	 *     $inspect.trace('my effect');
+	 *
+	 *     count;
+	 *   });
+	 * </script>
+	 */
+	export function trace(name?: string): void;
+
+	// prevent intellisense from being unhelpful
+	/** @deprecated */
+	export const apply: never;
+	/** @deprecated */
+	// @ts-ignore
+	export const arguments: never;
+	/** @deprecated */
+	export const bind: never;
+	/** @deprecated */
+	export const call: never;
+	/** @deprecated */
+	export const caller: never;
+	/** @deprecated */
+	export const length: never;
+	/** @deprecated */
+	export const name: never;
+	/** @deprecated */
+	export const prototype: never;
+	/** @deprecated */
+	export const toString: never;
+}
+
+/**
+ * Retrieves the `this` reference of the custom element that contains this component. Example:
+ *
+ * ```svelte
+ * <svelte:options customElement="my-element" />
+ *
+ * <script>
+ * 	function greet(greeting) {
+ * 		$host().dispatchEvent(new CustomEvent('greeting', { detail: greeting }))
+ * 	}
+ * </script>
+ *
+ * <button onclick={() => greet('hello')}>say hello</button>
+ * ```
+ *
+ * Only available inside custom element components, and only on the client-side.
+ *
+ * https://svelte.dev/docs/svelte/$host
+ */
+declare function $host<El extends HTMLElement = HTMLElement>(): El;
+
+declare namespace $host {
+	// prevent intellisense from being unhelpful
+	/** @deprecated */
+	export const apply: never;
+	/** @deprecated */
+	// @ts-ignore
+	export const arguments: never;
+	/** @deprecated */
+	export const bind: never;
+	/** @deprecated */
+	export const call: never;
+	/** @deprecated */
+	export const caller: never;
+	/** @deprecated */
+	export const length: never;
+	/** @deprecated */
+	export const name: never;
+	/** @deprecated */
+	export const prototype: never;
+	/** @deprecated */
+	export const toString: never;
+}

node_modules/svelte/src/animate/index.js

@@ -0,0 +1,78 @@
+/** @import { FlipParams, AnimationConfig } from './public.js' */
+import { cubicOut } from '../easing/index.js';
+
+/**
+ * The flip function calculates the start and end position of an element and animates between them, translating the x and y values.
+ * `flip` stands for [First, Last, Invert, Play](https://aerotwist.com/blog/flip-your-animations/).
+ *
+ * @param {Element} node
+ * @param {{ from: DOMRect; to: DOMRect }} fromTo
+ * @param {FlipParams} params
+ * @returns {AnimationConfig}
+ */
+export function flip(node, { from, to }, params = {}) {
+	var { delay = 0, duration = (d) => Math.sqrt(d) * 120, easing = cubicOut } = params;
+
+	var style = getComputedStyle(node);
+
+	// find the transform origin, expressed as a pair of values between 0 and 1
+	var transform = style.transform === 'none' ? '' : style.transform;
+	var [ox, oy] = style.transformOrigin.split(' ').map(parseFloat);
+	ox /= node.clientWidth;
+	oy /= node.clientHeight;
+
+	// calculate effect of parent transforms and zoom
+	var zoom = get_zoom(node); // https://drafts.csswg.org/css-viewport/#effective-zoom
+	var sx = node.clientWidth / to.width / zoom;
+	var sy = node.clientHeight / to.height / zoom;
+
+	// find the starting position of the transform origin
+	var fx = from.left + from.width * ox;
+	var fy = from.top + from.height * oy;
+
+	// find the ending position of the transform origin
+	var tx = to.left + to.width * ox;
+	var ty = to.top + to.height * oy;
+
+	// find the translation at the start of the transform
+	var dx = (fx - tx) * sx;
+	var dy = (fy - ty) * sy;
+
+	// find the relative scale at the start of the transform
+	var dsx = from.width / to.width;
+	var dsy = from.height / to.height;
+
+	return {
+		delay,
+		duration: typeof duration === 'function' ? duration(Math.sqrt(dx * dx + dy * dy)) : duration,
+		easing,
+		css: (t, u) => {
+			var x = u * dx;
+			var y = u * dy;
+			var sx = t + u * dsx;
+			var sy = t + u * dsy;
+
+			return `transform: ${transform} translate(${x}px, ${y}px) scale(${sx}, ${sy});`;
+		}
+	};
+}
+
+/**
+ * @param {Element} element
+ */
+function get_zoom(element) {
+	if ('currentCSSZoom' in element) {
+		return /** @type {number} */ (element.currentCSSZoom);
+	}
+
+	/** @type {Element | null} */
+	var current = element;
+	var zoom = 1;
+
+	while (current !== null) {
+		zoom *= +getComputedStyle(current).zoom;
+		current = /** @type {Element | null} */ (current.parentElement);
+	}
+
+	return zoom;
+}

node_modules/svelte/src/animate/public.d.ts

@@ -0,0 +1,16 @@
+// todo: same as Transition, should it be shared?
+export interface AnimationConfig {
+	delay?: number;
+	duration?: number;
+	easing?: (t: number) => number;
+	css?: (t: number, u: number) => string;
+	tick?: (t: number, u: number) => void;
+}
+
+export interface FlipParams {
+	delay?: number;
+	duration?: number | ((len: number) => number);
+	easing?: (t: number) => number;
+}
+
+export * from './index.js';

node_modules/svelte/src/compiler/index.js

@@ -0,0 +1,169 @@
+/** @import { LegacyRoot } from './types/legacy-nodes.js' */
+/** @import { CompileOptions, CompileResult, ValidatedCompileOptions, ModuleCompileOptions } from '#compiler' */
+/** @import { AST } from './public.js' */
+import { walk as zimmerframe_walk } from 'zimmerframe';
+import { convert } from './legacy.js';
+import { parse as parse_acorn } from './phases/1-parse/acorn.js';
+import { parse as _parse } from './phases/1-parse/index.js';
+import { remove_typescript_nodes } from './phases/1-parse/remove_typescript_nodes.js';
+import { analyze_component, analyze_module } from './phases/2-analyze/index.js';
+import { transform_component, transform_module } from './phases/3-transform/index.js';
+import { validate_component_options, validate_module_options } from './validate-options.js';
+import * as state from './state.js';
+export { default as preprocess } from './preprocess/index.js';
+
+/**
+ * `compile` converts your `.svelte` source code into a JavaScript module that exports a component
+ *
+ * @param {string} source The component source code
+ * @param {CompileOptions} options The compiler options
+ * @returns {CompileResult}
+ */
+export function compile(source, options) {
+	source = remove_bom(source);
+	state.reset_warning_filter(options.warningFilter);
+	const validated = validate_component_options(options, '');
+	state.reset(source, validated);
+
+	let parsed = _parse(source);
+
+	const { customElement: customElementOptions, ...parsed_options } = parsed.options || {};
+
+	/** @type {ValidatedCompileOptions} */
+	const combined_options = {
+		...validated,
+		...parsed_options,
+		customElementOptions
+	};
+
+	if (parsed.metadata.ts) {
+		parsed = {
+			...parsed,
+			fragment: parsed.fragment && remove_typescript_nodes(parsed.fragment),
+			instance: parsed.instance && remove_typescript_nodes(parsed.instance),
+			module: parsed.module && remove_typescript_nodes(parsed.module)
+		};
+	}
+
+	const analysis = analyze_component(parsed, source, combined_options);
+	const result = transform_component(analysis, source, combined_options);
+	result.ast = to_public_ast(source, parsed, options.modernAst);
+	return result;
+}
+
+/**
+ * `compileModule` takes your JavaScript source code containing runes, and turns it into a JavaScript module.
+ *
+ * @param {string} source The component source code
+ * @param {ModuleCompileOptions} options
+ * @returns {CompileResult}
+ */
+export function compileModule(source, options) {
+	source = remove_bom(source);
+	state.reset_warning_filter(options.warningFilter);
+	const validated = validate_module_options(options, '');
+	state.reset(source, validated);
+
+	const analysis = analyze_module(parse_acorn(source, false), validated);
+	return transform_module(analysis, source, validated);
+}
+
+/**
+ * The parse function parses a component, returning only its abstract syntax tree.
+ *
+ * The `modern` option (`false` by default in Svelte 5) makes the parser return a modern AST instead of the legacy AST.
+ * `modern` will become `true` by default in Svelte 6, and the option will be removed in Svelte 7.
+ *
+ * @overload
+ * @param {string} source
+ * @param {{ filename?: string; modern: true; loose?: boolean }} options
+ * @returns {AST.Root}
+ */
+
+/**
+ * The parse function parses a component, returning only its abstract syntax tree.
+ *
+ * The `modern` option (`false` by default in Svelte 5) makes the parser return a modern AST instead of the legacy AST.
+ * `modern` will become `true` by default in Svelte 6, and the option will be removed in Svelte 7.
+ *
+ * @overload
+ * @param {string} source
+ * @param {{ filename?: string; modern?: false; loose?: boolean }} [options]
+ * @returns {Record<string, any>}
+ */
+
+/**
+ * The parse function parses a component, returning only its abstract syntax tree.
+ *
+ * The `modern` option (`false` by default in Svelte 5) makes the parser return a modern AST instead of the legacy AST.
+ * `modern` will become `true` by default in Svelte 6, and the option will be removed in Svelte 7.
+ *
+ * The `loose` option, available since 5.13.0, tries to always return an AST even if the input will not successfully compile.
+ *
+ * @param {string} source
+ * @param {{ filename?: string; rootDir?: string; modern?: boolean; loose?: boolean }} [options]
+ * @returns {AST.Root | LegacyRoot}
+ */
+export function parse(source, { filename, rootDir, modern, loose } = {}) {
+	source = remove_bom(source);
+	state.reset_warning_filter(() => false);
+	state.reset(source, { filename: filename ?? '(unknown)', rootDir });
+
+	const ast = _parse(source, loose);
+	return to_public_ast(source, ast, modern);
+}
+
+/**
+ * @param {string} source
+ * @param {AST.Root} ast
+ * @param {boolean | undefined} modern
+ */
+function to_public_ast(source, ast, modern) {
+	if (modern) {
+		const clean = (/** @type {any} */ node) => {
+			delete node.metadata;
+		};
+
+		ast.options?.attributes.forEach((attribute) => {
+			clean(attribute);
+			clean(attribute.value);
+			if (Array.isArray(attribute.value)) {
+				attribute.value.forEach(clean);
+			}
+		});
+
+		// remove things that we don't want to treat as public API
+		return zimmerframe_walk(ast, null, {
+			_(node, { next }) {
+				clean(node);
+				next();
+			}
+		});
+	}
+
+	return convert(source, ast);
+}
+
+/**
+ * Remove the byte order mark from a string if it's present since it would mess with our template generation logic
+ * @param {string} source
+ */
+function remove_bom(source) {
+	if (source.charCodeAt(0) === 0xfeff) {
+		return source.slice(1);
+	}
+	return source;
+}
+
+/**
+ * @deprecated Replace this with `import { walk } from 'estree-walker'`
+ * @returns {never}
+ */
+export function walk() {
+	throw new Error(
+		`'svelte/compiler' no longer exports a \`walk\` utility — please import it directly from 'estree-walker' instead`
+	);
+}
+
+export { VERSION } from '../version.js';
+export { migrate } from './migrate/index.js';

node_modules/svelte/src/compiler/legacy.js

@@ -0,0 +1,628 @@
+/** @import { Expression } from 'estree' */
+/** @import { AST } from '#compiler' */
+/** @import * as Legacy from './types/legacy-nodes.js' */
+import { walk } from 'zimmerframe';
+import {
+	regex_ends_with_whitespaces,
+	regex_not_whitespace,
+	regex_starts_with_whitespaces
+} from './phases/patterns.js';
+import { extract_svelte_ignore } from './utils/extract_svelte_ignore.js';
+
+/**
+ * Some of the legacy Svelte AST nodes remove whitespace from the start and end of their children.
+ * @param {AST.TemplateNode[]} nodes
+ */
+function remove_surrounding_whitespace_nodes(nodes) {
+	const first = nodes.at(0);
+	const last = nodes.at(-1);
+
+	if (first?.type === 'Text') {
+		if (!regex_not_whitespace.test(first.data)) {
+			nodes.shift();
+		} else {
+			first.data = first.data.replace(regex_starts_with_whitespaces, '');
+		}
+	}
+	if (last?.type === 'Text') {
+		if (!regex_not_whitespace.test(last.data)) {
+			nodes.pop();
+		} else {
+			last.data = last.data.replace(regex_ends_with_whitespaces, '');
+		}
+	}
+}
+
+/**
+ * Transform our nice modern AST into the monstrosity emitted by Svelte 4
+ * @param {string} source
+ * @param {AST.Root} ast
+ * @returns {Legacy.LegacyRoot}
+ */
+export function convert(source, ast) {
+	const root = /** @type {AST.SvelteNode | Legacy.LegacySvelteNode} */ (ast);
+
+	return /** @type {Legacy.LegacyRoot} */ (
+		walk(root, null, {
+			_(node, { next }) {
+				// @ts-ignore
+				delete node.metadata;
+				next();
+			},
+			// @ts-ignore
+			Root(node, { visit }) {
+				const { instance, module, options } = node;
+
+				// Insert svelte:options back into the root nodes
+				if (/** @type {any} */ (options)?.__raw__) {
+					let idx = node.fragment.nodes.findIndex((node) => options.end <= node.start);
+					if (idx === -1) {
+						idx = node.fragment.nodes.length;
+					}
+
+					node.fragment.nodes.splice(idx, 0, /** @type {any} */ (options).__raw__);
+				}
+
+				/** @type {number | null} */
+				let start = null;
+
+				/** @type {number | null} */
+				let end = null;
+
+				if (node.fragment.nodes.length > 0) {
+					const first = /** @type {AST.BaseNode} */ (node.fragment.nodes.at(0));
+					const last = /** @type {AST.BaseNode} */ (node.fragment.nodes.at(-1));
+
+					start = first.start;
+					end = last.end;
+
+					while (/\s/.test(source[start])) start += 1;
+					while (/\s/.test(source[end - 1])) end -= 1;
+				}
+
+				if (instance) {
+					// @ts-ignore
+					delete instance.attributes;
+				}
+
+				if (module) {
+					// @ts-ignore
+					delete module.attributes;
+				}
+
+				return {
+					html: {
+						type: 'Fragment',
+						start,
+						end,
+						children: node.fragment.nodes.map((child) => visit(child))
+					},
+					instance,
+					module,
+					css: ast.css ? visit(ast.css) : undefined
+				};
+			},
+			AnimateDirective(node) {
+				return { ...node, type: 'Animation' };
+			},
+			// @ts-ignore
+			AwaitBlock(node, { visit }) {
+				let pendingblock = {
+					type: 'PendingBlock',
+					/** @type {number | null} */
+					start: null,
+					/** @type {number | null} */
+					end: null,
+					children: node.pending?.nodes.map((child) => visit(child)) ?? [],
+					skip: true
+				};
+
+				let thenblock = {
+					type: 'ThenBlock',
+					/** @type {number | null} */
+					start: null,
+					/** @type {number | null} */
+					end: null,
+					children: node.then?.nodes.map((child) => visit(child)) ?? [],
+					skip: true
+				};
+
+				let catchblock = {
+					type: 'CatchBlock',
+					/** @type {number | null} */
+					start: null,
+					/** @type {number | null} */
+					end: null,
+					children: node.catch?.nodes.map((child) => visit(child)) ?? [],
+					skip: true
+				};
+
+				if (node.pending) {
+					const first = node.pending.nodes.at(0);
+					const last = node.pending.nodes.at(-1);
+
+					pendingblock.start = first?.start ?? source.indexOf('}', node.expression.end) + 1;
+					pendingblock.end = last?.end ?? pendingblock.start;
+					pendingblock.skip = false;
+				}
+
+				if (node.then) {
+					const first = node.then.nodes.at(0);
+					const last = node.then.nodes.at(-1);
+
+					thenblock.start =
+						pendingblock.end ?? first?.start ?? source.indexOf('}', node.expression.end) + 1;
+					thenblock.end =
+						last?.end ?? source.lastIndexOf('}', pendingblock.end ?? node.expression.end) + 1;
+					thenblock.skip = false;
+				}
+
+				if (node.catch) {
+					const first = node.catch.nodes.at(0);
+					const last = node.catch.nodes.at(-1);
+
+					catchblock.start =
+						thenblock.end ??
+						pendingblock.end ??
+						first?.start ??
+						source.indexOf('}', node.expression.end) + 1;
+					catchblock.end =
+						last?.end ??
+						source.lastIndexOf('}', thenblock.end ?? pendingblock.end ?? node.expression.end) + 1;
+					catchblock.skip = false;
+				}
+
+				return {
+					type: 'AwaitBlock',
+					start: node.start,
+					end: node.end,
+					expression: node.expression,
+					value: node.value,
+					error: node.error,
+					pending: pendingblock,
+					then: thenblock,
+					catch: catchblock
+				};
+			},
+			BindDirective(node) {
+				return { ...node, type: 'Binding' };
+			},
+			ClassDirective(node) {
+				return { ...node, type: 'Class' };
+			},
+			Comment(node) {
+				return {
+					...node,
+					ignores: extract_svelte_ignore(node.start, node.data, false)
+				};
+			},
+			ComplexSelector(node, { next }) {
+				next(); // delete inner metadata/parent properties
+
+				const children = [];
+
+				for (const child of node.children) {
+					if (child.combinator) {
+						children.push(child.combinator);
+					}
+
+					children.push(...child.selectors);
+				}
+
+				return {
+					type: 'Selector',
+					start: node.start,
+					end: node.end,
+					children
+				};
+			},
+			Component(node, { visit }) {
+				return {
+					type: 'InlineComponent',
+					start: node.start,
+					end: node.end,
+					name: node.name,
+					attributes: node.attributes.map(
+						(child) => /** @type {Legacy.LegacyAttributeLike} */ (visit(child))
+					),
+					children: node.fragment.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					)
+				};
+			},
+			// @ts-ignore
+			ConstTag(node) {
+				if (/** @type {Legacy.LegacyConstTag} */ (node).expression !== undefined) {
+					return node;
+				}
+
+				const modern_node = /** @type {AST.ConstTag} */ (node);
+				const { id: left } = { ...modern_node.declaration.declarations[0] };
+				// @ts-ignore
+				delete left.typeAnnotation;
+				return {
+					type: 'ConstTag',
+					start: modern_node.start,
+					end: node.end,
+					expression: {
+						type: 'AssignmentExpression',
+						start: (modern_node.declaration.start ?? 0) + 'const '.length,
+						end: modern_node.declaration.end ?? 0,
+						operator: '=',
+						left,
+						right: modern_node.declaration.declarations[0].init
+					}
+				};
+			},
+			// @ts-ignore
+			KeyBlock(node, { visit }) {
+				remove_surrounding_whitespace_nodes(node.fragment.nodes);
+				return {
+					type: 'KeyBlock',
+					start: node.start,
+					end: node.end,
+					expression: node.expression,
+					children: node.fragment.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					)
+				};
+			},
+			// @ts-ignore
+			EachBlock(node, { visit }) {
+				let elseblock = undefined;
+
+				if (node.fallback) {
+					const first = node.fallback.nodes.at(0);
+					const end = source.lastIndexOf('{', /** @type {number} */ (node.end) - 1);
+					const start = first?.start ?? end;
+
+					remove_surrounding_whitespace_nodes(node.fallback.nodes);
+
+					elseblock = {
+						type: 'ElseBlock',
+						start,
+						end,
+						children: node.fallback.nodes.map((child) => visit(child))
+					};
+				}
+
+				remove_surrounding_whitespace_nodes(node.body.nodes);
+
+				return {
+					type: 'EachBlock',
+					start: node.start,
+					end: node.end,
+					children: node.body.nodes.map((child) => visit(child)),
+					context: node.context,
+					expression: node.expression,
+					index: node.index,
+					key: node.key,
+					else: elseblock
+				};
+			},
+			ExpressionTag(node, { path }) {
+				const parent = path.at(-1);
+				if (parent?.type === 'Attribute') {
+					if (source[parent.start] === '{') {
+						return {
+							type: 'AttributeShorthand',
+							start: node.start,
+							end: node.end,
+							expression: node.expression
+						};
+					}
+				}
+
+				return {
+					type: 'MustacheTag',
+					start: node.start,
+					end: node.end,
+					expression: node.expression
+				};
+			},
+			HtmlTag(node) {
+				return { ...node, type: 'RawMustacheTag' };
+			},
+			// @ts-ignore
+			IfBlock(node, { visit }) {
+				let elseblock = undefined;
+				if (node.alternate) {
+					let nodes = node.alternate.nodes;
+					if (nodes.length === 1 && nodes[0].type === 'IfBlock' && nodes[0].elseif) {
+						nodes = nodes[0].consequent.nodes;
+					}
+
+					const end = source.lastIndexOf('{', /** @type {number} */ (node.end) - 1);
+					const start = nodes.at(0)?.start ?? end;
+
+					remove_surrounding_whitespace_nodes(node.alternate.nodes);
+
+					elseblock = {
+						type: 'ElseBlock',
+						start,
+						end: end,
+						children: node.alternate.nodes.map(
+							(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+						)
+					};
+				}
+
+				const start = node.elseif
+					? node.consequent.nodes[0]?.start ??
+						source.lastIndexOf('{', /** @type {number} */ (node.end) - 1)
+					: node.start;
+
+				remove_surrounding_whitespace_nodes(node.consequent.nodes);
+
+				return {
+					type: 'IfBlock',
+					start,
+					end: node.end,
+					expression: node.test,
+					children: node.consequent.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					),
+					else: elseblock,
+					elseif: node.elseif ? true : undefined
+				};
+			},
+			OnDirective(node) {
+				return { ...node, type: 'EventHandler' };
+			},
+			// @ts-expect-error
+			SnippetBlock(node, { visit }) {
+				remove_surrounding_whitespace_nodes(node.body.nodes);
+				return {
+					type: 'SnippetBlock',
+					start: node.start,
+					end: node.end,
+					expression: node.expression,
+					parameters: node.parameters,
+					children: node.body.nodes.map((child) => visit(child))
+				};
+			},
+			// @ts-expect-error
+			SvelteBoundary(node, { visit }) {
+				remove_surrounding_whitespace_nodes(node.fragment.nodes);
+				return {
+					type: 'SvelteBoundary',
+					name: 'svelte:boundary',
+					start: node.start,
+					end: node.end,
+					attributes: node.attributes.map(
+						(child) => /** @type {Legacy.LegacyAttributeLike} */ (visit(child))
+					),
+					children: node.fragment.nodes.map((child) => visit(child))
+				};
+			},
+			RegularElement(node, { visit }) {
+				return {
+					type: 'Element',
+					start: node.start,
+					end: node.end,
+					name: node.name,
+					attributes: node.attributes.map((child) => visit(child)),
+					children: node.fragment.nodes.map((child) => visit(child))
+				};
+			},
+			SlotElement(node, { visit }) {
+				return {
+					type: 'Slot',
+					start: node.start,
+					end: node.end,
+					name: node.name,
+					attributes: node.attributes.map(
+						(child) => /** @type {Legacy.LegacyAttributeLike} */ (visit(child))
+					),
+					children: node.fragment.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					)
+				};
+			},
+			Attribute(node, { visit, next, path }) {
+				if (node.value !== true && !Array.isArray(node.value)) {
+					path.push(node);
+					const value = /** @type {Legacy.LegacyAttribute['value']} */ ([visit(node.value)]);
+					path.pop();
+
+					return {
+						...node,
+						value
+					};
+				} else {
+					return next();
+				}
+			},
+			StyleDirective(node, { visit, next, path }) {
+				if (node.value !== true && !Array.isArray(node.value)) {
+					path.push(node);
+					const value = /** @type {Legacy.LegacyStyleDirective['value']} */ ([visit(node.value)]);
+					path.pop();
+
+					return {
+						...node,
+						value
+					};
+				} else {
+					return next();
+				}
+			},
+			SpreadAttribute(node) {
+				return { ...node, type: 'Spread' };
+			},
+			StyleSheet(node, context) {
+				return {
+					...node,
+					...context.next(),
+					type: 'Style'
+				};
+			},
+			SvelteBody(node, { visit }) {
+				return {
+					type: 'Body',
+					name: 'svelte:body',
+					start: node.start,
+					end: node.end,
+					attributes: node.attributes.map(
+						(child) => /** @type {Legacy.LegacyAttributeLike} */ (visit(child))
+					),
+					children: node.fragment.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					)
+				};
+			},
+			SvelteComponent(node, { visit }) {
+				return {
+					type: 'InlineComponent',
+					name: 'svelte:component',
+					start: node.start,
+					end: node.end,
+					expression: node.expression,
+					attributes: node.attributes.map(
+						(child) => /** @type {Legacy.LegacyAttributeLike} */ (visit(child))
+					),
+					children: node.fragment.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					)
+				};
+			},
+			SvelteDocument(node, { visit }) {
+				return {
+					type: 'Document',
+					name: 'svelte:document',
+					start: node.start,
+					end: node.end,
+					attributes: node.attributes.map(
+						(child) => /** @type {Legacy.LegacyAttributeLike} */ (visit(child))
+					),
+					children: node.fragment.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					)
+				};
+			},
+			SvelteElement(node, { visit }) {
+				/** @type {Expression | string} */
+				let tag = node.tag;
+				if (
+					tag.type === 'Literal' &&
+					typeof tag.value === 'string' &&
+					source[/** @type {number} */ (node.tag.start) - 1] !== '{'
+				) {
+					tag = tag.value;
+				}
+
+				return {
+					type: 'Element',
+					name: 'svelte:element',
+					start: node.start,
+					end: node.end,
+					tag,
+					attributes: node.attributes.map((child) => visit(child)),
+					children: node.fragment.nodes.map((child) => visit(child))
+				};
+			},
+			SvelteFragment(node, { visit }) {
+				return {
+					type: 'SlotTemplate',
+					name: 'svelte:fragment',
+					start: node.start,
+					end: node.end,
+					attributes: node.attributes.map(
+						(a) => /** @type {Legacy.LegacyAttributeLike} */ (visit(a))
+					),
+					children: node.fragment.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					)
+				};
+			},
+			SvelteHead(node, { visit }) {
+				return {
+					type: 'Head',
+					name: 'svelte:head',
+					start: node.start,
+					end: node.end,
+					attributes: node.attributes.map(
+						(child) => /** @type {Legacy.LegacyAttributeLike} */ (visit(child))
+					),
+					children: node.fragment.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					)
+				};
+			},
+			SvelteOptions(node, { visit }) {
+				return {
+					type: 'Options',
+					name: 'svelte:options',
+					start: node.start,
+					end: node.end,
+					attributes: node.attributes.map(
+						(child) => /** @type {Legacy.LegacyAttributeLike} */ (visit(child))
+					)
+				};
+			},
+			SvelteSelf(node, { visit }) {
+				return {
+					type: 'InlineComponent',
+					name: 'svelte:self',
+					start: node.start,
+					end: node.end,
+					attributes: node.attributes.map(
+						(child) => /** @type {Legacy.LegacyAttributeLike} */ (visit(child))
+					),
+					children: node.fragment.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					)
+				};
+			},
+			SvelteWindow(node, { visit }) {
+				return {
+					type: 'Window',
+					name: 'svelte:window',
+					start: node.start,
+					end: node.end,
+					attributes: node.attributes.map(
+						(child) => /** @type {Legacy.LegacyAttributeLike} */ (visit(child))
+					),
+					children: node.fragment.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					)
+				};
+			},
+			Text(node, { path }) {
+				const parent = path.at(-1);
+				if (parent?.type === 'RegularElement' && parent.name === 'style') {
+					// these text nodes are missing `raw` for some dumb reason
+					return /** @type {AST.Text} */ ({
+						type: 'Text',
+						start: node.start,
+						end: node.end,
+						data: node.data
+					});
+				}
+			},
+			TitleElement(node, { visit }) {
+				return {
+					type: 'Title',
+					name: 'title',
+					start: node.start,
+					end: node.end,
+					attributes: node.attributes.map(
+						(child) => /** @type {Legacy.LegacyAttributeLike} */ (visit(child))
+					),
+					children: node.fragment.nodes.map(
+						(child) => /** @type {Legacy.LegacyElementLike} */ (visit(child))
+					)
+				};
+			},
+			TransitionDirective(node) {
+				return { ...node, type: 'Transition' };
+			},
+			UseDirective(node) {
+				return { ...node, type: 'Action' };
+			},
+			LetDirective(node) {
+				return { ...node, type: 'Let' };
+			}
+		})
+	);
+}

node_modules/svelte/src/compiler/phases/1-parse/acorn.js

@@ -0,0 +1,214 @@
+/** @import { Comment, Program } from 'estree' */
+/** @import { Node } from 'acorn' */
+import * as acorn from 'acorn';
+import { walk } from 'zimmerframe';
+import { tsPlugin } from 'acorn-typescript';
+import { locator } from '../../state.js';
+
+const ParserWithTS = acorn.Parser.extend(tsPlugin({ allowSatisfies: true }));
+
+/**
+ * @param {string} source
+ * @param {boolean} typescript
+ * @param {boolean} [is_script]
+ */
+export function parse(source, typescript, is_script) {
+	const parser = typescript ? ParserWithTS : acorn.Parser;
+	const { onComment, add_comments } = get_comment_handlers(source);
+	// @ts-ignore
+	const parse_statement = parser.prototype.parseStatement;
+
+	// If we're dealing with a <script> then it might contain an export
+	// for something that doesn't exist directly inside but is inside the
+	// component instead, so we need to ensure that Acorn doesn't throw
+	// an error in these cases
+	if (is_script) {
+		// @ts-ignore
+		parser.prototype.parseStatement = function (...args) {
+			const v = parse_statement.call(this, ...args);
+			// @ts-ignore
+			this.undefinedExports = {};
+			return v;
+		};
+	}
+
+	let ast;
+
+	try {
+		ast = parser.parse(source, {
+			onComment,
+			sourceType: 'module',
+			ecmaVersion: 13,
+			locations: true
+		});
+	} finally {
+		if (is_script) {
+			// @ts-ignore
+			parser.prototype.parseStatement = parse_statement;
+		}
+	}
+
+	if (typescript) amend(source, ast);
+	add_comments(ast);
+
+	return /** @type {Program} */ (ast);
+}
+
+/**
+ * @param {string} source
+ * @param {boolean} typescript
+ * @param {number} index
+ * @returns {acorn.Expression & { leadingComments?: CommentWithLocation[]; trailingComments?: CommentWithLocation[]; }}
+ */
+export function parse_expression_at(source, typescript, index) {
+	const parser = typescript ? ParserWithTS : acorn.Parser;
+	const { onComment, add_comments } = get_comment_handlers(source);
+
+	const ast = parser.parseExpressionAt(source, index, {
+		onComment,
+		sourceType: 'module',
+		ecmaVersion: 13,
+		locations: true
+	});
+
+	if (typescript) amend(source, ast);
+	add_comments(ast);
+
+	return ast;
+}
+
+/**
+ * Acorn doesn't add comments to the AST by itself. This factory returns the capabilities
+ * to add them after the fact. They are needed in order to support `svelte-ignore` comments
+ * in JS code and so that `prettier-plugin-svelte` doesn't remove all comments when formatting.
+ * @param {string} source
+ */
+function get_comment_handlers(source) {
+	/**
+	 * @typedef {Comment & {
+	 *   start: number;
+	 *   end: number;
+	 * }} CommentWithLocation
+	 */
+
+	/** @type {CommentWithLocation[]} */
+	const comments = [];
+
+	return {
+		/**
+		 * @param {boolean} block
+		 * @param {string} value
+		 * @param {number} start
+		 * @param {number} end
+		 */
+		onComment: (block, value, start, end) => {
+			if (block && /\n/.test(value)) {
+				let a = start;
+				while (a > 0 && source[a - 1] !== '\n') a -= 1;
+
+				let b = a;
+				while (/[ \t]/.test(source[b])) b += 1;
+
+				const indentation = source.slice(a, b);
+				value = value.replace(new RegExp(`^${indentation}`, 'gm'), '');
+			}
+
+			comments.push({ type: block ? 'Block' : 'Line', value, start, end });
+		},
+
+		/** @param {acorn.Node & { leadingComments?: CommentWithLocation[]; trailingComments?: CommentWithLocation[]; }} ast */
+		add_comments(ast) {
+			if (comments.length === 0) return;
+
+			walk(ast, null, {
+				_(node, { next, path }) {
+					let comment;
+
+					while (comments[0] && comments[0].start < node.start) {
+						comment = /** @type {CommentWithLocation} */ (comments.shift());
+						(node.leadingComments ||= []).push(comment);
+					}
+
+					next();
+
+					if (comments[0]) {
+						const parent = /** @type {any} */ (path.at(-1));
+
+						if (parent === undefined || node.end !== parent.end) {
+							const slice = source.slice(node.end, comments[0].start);
+							const is_last_in_body =
+								((parent?.type === 'BlockStatement' || parent?.type === 'Program') &&
+									parent.body.indexOf(node) === parent.body.length - 1) ||
+								(parent?.type === 'ArrayExpression' &&
+									parent.elements.indexOf(node) === parent.elements.length - 1) ||
+								(parent?.type === 'ObjectExpression' &&
+									parent.properties.indexOf(node) === parent.properties.length - 1);
+
+							if (is_last_in_body) {
+								// Special case: There can be multiple trailing comments after the last node in a block,
+								// and they can be separated by newlines
+								let end = node.end;
+
+								while (comments.length) {
+									const comment = comments[0];
+									if (parent && comment.start >= parent.end) break;
+
+									(node.trailingComments ||= []).push(comment);
+									comments.shift();
+									end = comment.end;
+								}
+							} else if (node.end <= comments[0].start && /^[,) \t]*$/.test(slice)) {
+								node.trailingComments = [/** @type {CommentWithLocation} */ (comments.shift())];
+							}
+						}
+					}
+				}
+			});
+
+			// Special case: Trailing comments after the root node (which can only happen for expression tags or for Program nodes).
+			// Adding them ensures that we can later detect the end of the expression tag correctly.
+			if (comments.length > 0 && (comments[0].start >= ast.end || ast.type === 'Program')) {
+				(ast.trailingComments ||= []).push(...comments.splice(0));
+			}
+		}
+	};
+}
+
+/**
+ * Tidy up some stuff left behind by acorn-typescript
+ * @param {string} source
+ * @param {Node} node
+ */
+function amend(source, node) {
+	return walk(node, null, {
+		_(node, context) {
+			// @ts-expect-error
+			delete node.loc.start.index;
+			// @ts-expect-error
+			delete node.loc.end.index;
+
+			if (typeof node.loc?.end === 'number') {
+				const loc = locator(node.loc.end);
+				if (loc) {
+					node.loc.end = {
+						line: loc.line,
+						column: loc.column
+					};
+				}
+			}
+
+			if (
+				/** @type {any} */ (node).typeAnnotation &&
+				(node.end === undefined || node.end < node.start)
+			) {
+				// i think there might be a bug in acorn-typescript that prevents
+				// `end` from being assigned when there's a type annotation
+				let end = /** @type {any} */ (node).typeAnnotation.start;
+				while (/\s/.test(source[end - 1])) end -= 1;
+				node.end = end;
+			}
+
+			context.next();
+		}
+	});
+}

node_modules/svelte/src/compiler/phases/1-parse/ambient.d.ts

@@ -0,0 +1,3 @@
+// Silence the acorn typescript errors through this ambient type definition + tsconfig.json path alias
+// That way we can omit `"skipLibCheck": true` and catch other errors in our d.ts files
+declare module 'acorn-typescript';

node_modules/svelte/src/compiler/phases/1-parse/index.js

@@ -0,0 +1,312 @@
+/** @import { AST } from '#compiler' */
+// @ts-expect-error acorn type definitions are borked in the release we use
+import { isIdentifierStart, isIdentifierChar } from 'acorn';
+import fragment from './state/fragment.js';
+import { regex_whitespace } from '../patterns.js';
+import * as e from '../../errors.js';
+import { create_fragment } from './utils/create.js';
+import read_options from './read/options.js';
+import { is_reserved } from '../../../utils.js';
+import { disallow_children } from '../2-analyze/visitors/shared/special-element.js';
+
+const regex_position_indicator = / \(\d+:\d+\)$/;
+
+const regex_lang_attribute =
+	/<!--[^]*?-->|<script\s+(?:[^>]*|(?:[^=>'"/]+=(?:"[^"]*"|'[^']*'|[^>\s]+)\s+)*)lang=(["'])?([^"' >]+)\1[^>]*>/g;
+
+export class Parser {
+	/**
+	 * @readonly
+	 * @type {string}
+	 */
+	template;
+
+	/**
+	 * @readonly
+	 * @type {string}
+	 */
+	template_untrimmed;
+
+	/**
+	 * Whether or not we're in loose parsing mode, in which
+	 * case we try to continue parsing as much as possible
+	 * @type {boolean}
+	 */
+	loose;
+
+	/** */
+	index = 0;
+
+	/** Whether we're parsing in TypeScript mode */
+	ts = false;
+
+	/** @type {AST.TemplateNode[]} */
+	stack = [];
+
+	/** @type {AST.Fragment[]} */
+	fragments = [];
+
+	/** @type {AST.Root} */
+	root;
+
+	/** @type {Record<string, boolean>} */
+	meta_tags = {};
+
+	/** @type {LastAutoClosedTag | undefined} */
+	last_auto_closed_tag;
+
+	/**
+	 * @param {string} template
+	 * @param {boolean} loose
+	 */
+	constructor(template, loose) {
+		if (typeof template !== 'string') {
+			throw new TypeError('Template must be a string');
+		}
+
+		this.loose = loose;
+		this.template_untrimmed = template;
+		this.template = template.trimEnd();
+
+		let match_lang;
+
+		do match_lang = regex_lang_attribute.exec(template);
+		while (match_lang && match_lang[0][1] !== 's'); // ensure it starts with '<s' to match script tags
+
+		regex_lang_attribute.lastIndex = 0; // reset matched index to pass tests - otherwise declare the regex inside the constructor
+
+		this.ts = match_lang?.[2] === 'ts';
+
+		this.root = {
+			css: null,
+			js: [],
+			// @ts-ignore
+			start: null,
+			// @ts-ignore
+			end: null,
+			type: 'Root',
+			fragment: create_fragment(),
+			options: null,
+			metadata: {
+				ts: this.ts
+			}
+		};
+
+		this.stack.push(this.root);
+		this.fragments.push(this.root.fragment);
+
+		/** @type {ParserState} */
+		let state = fragment;
+
+		while (this.index < this.template.length) {
+			state = state(this) || fragment;
+		}
+
+		if (this.stack.length > 1) {
+			const current = this.current();
+
+			if (this.loose) {
+				current.end = this.template.length;
+			} else if (current.type === 'RegularElement') {
+				current.end = current.start + 1;
+				e.element_unclosed(current, current.name);
+			} else {
+				current.end = current.start + 1;
+				e.block_unclosed(current);
+			}
+		}
+
+		if (state !== fragment) {
+			e.unexpected_eof(this.index);
+		}
+
+		if (this.root.fragment.nodes.length) {
+			let start = /** @type {number} */ (this.root.fragment.nodes[0].start);
+			while (regex_whitespace.test(template[start])) start += 1;
+
+			let end = /** @type {number} */ (
+				this.root.fragment.nodes[this.root.fragment.nodes.length - 1].end
+			);
+			while (regex_whitespace.test(template[end - 1])) end -= 1;
+
+			this.root.start = start;
+			this.root.end = end;
+		} else {
+			// @ts-ignore
+			this.root.start = this.root.end = null;
+		}
+
+		const options_index = this.root.fragment.nodes.findIndex(
+			/** @param {any} thing */
+			(thing) => thing.type === 'SvelteOptions'
+		);
+		if (options_index !== -1) {
+			const options = /** @type {AST.SvelteOptionsRaw} */ (this.root.fragment.nodes[options_index]);
+			this.root.fragment.nodes.splice(options_index, 1);
+			this.root.options = read_options(options);
+
+			disallow_children(options);
+
+			// We need this for the old AST format
+			Object.defineProperty(this.root.options, '__raw__', {
+				value: options,
+				enumerable: false
+			});
+		}
+	}
+
+	current() {
+		return this.stack[this.stack.length - 1];
+	}
+
+	/**
+	 * @param {any} err
+	 * @returns {never}
+	 */
+	acorn_error(err) {
+		e.js_parse_error(err.pos, err.message.replace(regex_position_indicator, ''));
+	}
+
+	/**
+	 * @param {string} str
+	 * @param {boolean} required
+	 * @param {boolean} required_in_loose
+	 */
+	eat(str, required = false, required_in_loose = true) {
+		if (this.match(str)) {
+			this.index += str.length;
+			return true;
+		}
+
+		if (required && (!this.loose || required_in_loose)) {
+			e.expected_token(this.index, str);
+		}
+
+		return false;
+	}
+
+	/** @param {string} str */
+	match(str) {
+		const length = str.length;
+		if (length === 1) {
+			// more performant than slicing
+			return this.template[this.index] === str;
+		}
+
+		return this.template.slice(this.index, this.index + length) === str;
+	}
+
+	/**
+	 * Match a regex at the current index
+	 * @param {RegExp} pattern  Should have a ^ anchor at the start so the regex doesn't search past the beginning, resulting in worse performance
+	 */
+	match_regex(pattern) {
+		const match = pattern.exec(this.template.slice(this.index));
+		if (!match || match.index !== 0) return null;
+
+		return match[0];
+	}
+
+	allow_whitespace() {
+		while (this.index < this.template.length && regex_whitespace.test(this.template[this.index])) {
+			this.index++;
+		}
+	}
+
+	/**
+	 * Search for a regex starting at the current index and return the result if it matches
+	 * @param {RegExp} pattern  Should have a ^ anchor at the start so the regex doesn't search past the beginning, resulting in worse performance
+	 */
+	read(pattern) {
+		const result = this.match_regex(pattern);
+		if (result) this.index += result.length;
+		return result;
+	}
+
+	/** @param {any} allow_reserved */
+	read_identifier(allow_reserved = false) {
+		const start = this.index;
+
+		let i = this.index;
+
+		const code = /** @type {number} */ (this.template.codePointAt(i));
+		if (!isIdentifierStart(code, true)) return null;
+
+		i += code <= 0xffff ? 1 : 2;
+
+		while (i < this.template.length) {
+			const code = /** @type {number} */ (this.template.codePointAt(i));
+
+			if (!isIdentifierChar(code, true)) break;
+			i += code <= 0xffff ? 1 : 2;
+		}
+
+		const identifier = this.template.slice(this.index, (this.index = i));
+
+		if (!allow_reserved && is_reserved(identifier)) {
+			e.unexpected_reserved_word(start, identifier);
+		}
+
+		return identifier;
+	}
+
+	/** @param {RegExp} pattern */
+	read_until(pattern) {
+		if (this.index >= this.template.length) {
+			if (this.loose) return '';
+			e.unexpected_eof(this.template.length);
+		}
+
+		const start = this.index;
+		const match = pattern.exec(this.template.slice(start));
+
+		if (match) {
+			this.index = start + match.index;
+			return this.template.slice(start, this.index);
+		}
+
+		this.index = this.template.length;
+		return this.template.slice(start);
+	}
+
+	require_whitespace() {
+		if (!regex_whitespace.test(this.template[this.index])) {
+			e.expected_whitespace(this.index);
+		}
+
+		this.allow_whitespace();
+	}
+
+	pop() {
+		this.fragments.pop();
+		return this.stack.pop();
+	}
+
+	/**
+	 * @template {AST.Fragment['nodes'][number]} T
+	 * @param {T} node
+	 * @returns {T}
+	 */
+	append(node) {
+		this.fragments.at(-1)?.nodes.push(node);
+		return node;
+	}
+}
+
+/**
+ * @param {string} template
+ * @param {boolean} [loose]
+ * @returns {AST.Root}
+ */
+export function parse(template, loose = false) {
+	const parser = new Parser(template, loose);
+	return parser.root;
+}
+
+/** @typedef {(parser: Parser) => ParserState | void} ParserState */
+
+/** @typedef {Object} LastAutoClosedTag
+ * @property {string} tag
+ * @property {string} reason
+ * @property {number} depth
+ */

node_modules/svelte/src/compiler/phases/1-parse/read/context.js

@@ -0,0 +1,187 @@
+/** @import { Location } from 'locate-character' */
+/** @import { Pattern } from 'estree' */
+/** @import { Parser } from '../index.js' */
+import { is_bracket_open, is_bracket_close, get_bracket_close } from '../utils/bracket.js';
+import { parse_expression_at } from '../acorn.js';
+import { regex_not_newline_characters } from '../../patterns.js';
+import * as e from '../../../errors.js';
+import { locator } from '../../../state.js';
+
+/**
+ * @param {Parser} parser
+ * @returns {Pattern}
+ */
+export default function read_pattern(parser) {
+	const start = parser.index;
+	let i = parser.index;
+
+	const name = parser.read_identifier();
+
+	if (name !== null) {
+		const annotation = read_type_annotation(parser);
+
+		return {
+			type: 'Identifier',
+			name,
+			start,
+			loc: {
+				start: /** @type {Location} */ (locator(start)),
+				end: /** @type {Location} */ (locator(parser.index))
+			},
+			end: parser.index,
+			typeAnnotation: annotation
+		};
+	}
+
+	if (!is_bracket_open(parser.template[i])) {
+		e.expected_pattern(i);
+	}
+
+	i = match_bracket(parser, start);
+	parser.index = i;
+
+	const pattern_string = parser.template.slice(start, i);
+
+	try {
+		// the length of the `space_with_newline` has to be start - 1
+		// because we added a `(` in front of the pattern_string,
+		// which shifted the entire string to right by 1
+		// so we offset it by removing 1 character in the `space_with_newline`
+		// to achieve that, we remove the 1st space encountered,
+		// so it will not affect the `column` of the node
+		let space_with_newline = parser.template
+			.slice(0, start)
+			.replace(regex_not_newline_characters, ' ');
+		const first_space = space_with_newline.indexOf(' ');
+		space_with_newline =
+			space_with_newline.slice(0, first_space) + space_with_newline.slice(first_space + 1);
+
+		const expression = /** @type {any} */ (
+			parse_expression_at(`${space_with_newline}(${pattern_string} = 1)`, parser.ts, start - 1)
+		).left;
+
+		expression.typeAnnotation = read_type_annotation(parser);
+		if (expression.typeAnnotation) {
+			expression.end = expression.typeAnnotation.end;
+		}
+
+		return expression;
+	} catch (error) {
+		parser.acorn_error(error);
+	}
+}
+
+/**
+ * @param {Parser} parser
+ * @param {number} start
+ */
+function match_bracket(parser, start) {
+	const bracket_stack = [];
+
+	let i = start;
+
+	while (i < parser.template.length) {
+		let char = parser.template[i++];
+
+		if (char === "'" || char === '"' || char === '`') {
+			i = match_quote(parser, i, char);
+			continue;
+		}
+
+		if (is_bracket_open(char)) {
+			bracket_stack.push(char);
+		} else if (is_bracket_close(char)) {
+			const popped = /** @type {string} */ (bracket_stack.pop());
+			const expected = /** @type {string} */ (get_bracket_close(popped));
+
+			if (char !== expected) {
+				e.expected_token(i - 1, expected);
+			}
+
+			if (bracket_stack.length === 0) {
+				return i;
+			}
+		}
+	}
+
+	e.unexpected_eof(parser.template.length);
+}
+
+/**
+ * @param {Parser} parser
+ * @param {number} start
+ * @param {string} quote
+ */
+function match_quote(parser, start, quote) {
+	let is_escaped = false;
+	let i = start;
+
+	while (i < parser.template.length) {
+		const char = parser.template[i++];
+
+		if (is_escaped) {
+			is_escaped = false;
+			continue;
+		}
+
+		if (char === quote) {
+			return i;
+		}
+
+		if (char === '\\') {
+			is_escaped = true;
+		}
+
+		if (quote === '`' && char === '$' && parser.template[i] === '{') {
+			i = match_bracket(parser, i);
+		}
+	}
+
+	e.unterminated_string_constant(start);
+}
+
+/**
+ * @param {Parser} parser
+ * @returns {any}
+ */
+function read_type_annotation(parser) {
+	const start = parser.index;
+	parser.allow_whitespace();
+
+	if (!parser.eat(':')) {
+		parser.index = start;
+		return undefined;
+	}
+
+	// we need to trick Acorn into parsing the type annotation
+	const insert = '_ as ';
+	let a = parser.index - insert.length;
+	const template =
+		parser.template.slice(0, a).replace(/[^\n]/g, ' ') +
+		insert +
+		// If this is a type annotation for a function parameter, Acorn-TS will treat subsequent
+		// parameters as part of a sequence expression instead, and will then error on optional
+		// parameters (`?:`). Therefore replace that sequence with something that will not error.
+		parser.template.slice(parser.index).replace(/\?\s*:/g, ':');
+	let expression = parse_expression_at(template, parser.ts, a);
+
+	// `foo: bar = baz` gets mangled — fix it
+	if (expression.type === 'AssignmentExpression') {
+		let b = expression.right.start;
+		while (template[b] !== '=') b -= 1;
+		expression = parse_expression_at(template.slice(0, b), parser.ts, a);
+	}
+
+	// `array as item: string, index` becomes `string, index`, which is mistaken as a sequence expression - fix that
+	if (expression.type === 'SequenceExpression') {
+		expression = expression.expressions[0];
+	}
+
+	parser.index = /** @type {number} */ (expression.end);
+	return {
+		type: 'TSTypeAnnotation',
+		start,
+		end: parser.index,
+		typeAnnotation: /** @type {any} */ (expression).typeAnnotation
+	};
+}

node_modules/svelte/src/compiler/phases/1-parse/read/expression.js

@@ -0,0 +1,81 @@
+/** @import { Expression } from 'estree' */
+/** @import { Parser } from '../index.js' */
+import { parse_expression_at } from '../acorn.js';
+import { regex_whitespace } from '../../patterns.js';
+import * as e from '../../../errors.js';
+import { find_matching_bracket } from '../utils/bracket.js';
+
+/**
+ * @param {Parser} parser
+ * @param {string} [opening_token]
+ * @returns {Expression | undefined}
+ */
+export function get_loose_identifier(parser, opening_token) {
+	// Find the next } and treat it as the end of the expression
+	const end = find_matching_bracket(parser.template, parser.index, opening_token ?? '{');
+	if (end) {
+		const start = parser.index;
+		parser.index = end;
+		// We don't know what the expression is and signal this by returning an empty identifier
+		return {
+			type: 'Identifier',
+			start,
+			end,
+			name: ''
+		};
+	}
+}
+
+/**
+ * @param {Parser} parser
+ * @param {string} [opening_token]
+ * @param {boolean} [disallow_loose]
+ * @returns {Expression}
+ */
+export default function read_expression(parser, opening_token, disallow_loose) {
+	try {
+		const node = parse_expression_at(parser.template, parser.ts, parser.index);
+
+		let num_parens = 0;
+
+		if (node.leadingComments !== undefined && node.leadingComments.length > 0) {
+			parser.index = node.leadingComments.at(-1).end;
+		}
+
+		for (let i = parser.index; i < /** @type {number} */ (node.start); i += 1) {
+			if (parser.template[i] === '(') num_parens += 1;
+		}
+
+		let index = /** @type {number} */ (node.end);
+		if (node.trailingComments !== undefined && node.trailingComments.length > 0) {
+			index = node.trailingComments.at(-1).end;
+		}
+
+		while (num_parens > 0) {
+			const char = parser.template[index];
+
+			if (char === ')') {
+				num_parens -= 1;
+			} else if (!regex_whitespace.test(char)) {
+				e.expected_token(index, ')');
+			}
+
+			index += 1;
+		}
+
+		parser.index = index;
+
+		return /** @type {Expression} */ (node);
+	} catch (err) {
+		// If we are in an each loop we need the error to be thrown in cases like
+		// `as { y = z }` so we still throw and handle the error there
+		if (parser.loose && !disallow_loose) {
+			const expression = get_loose_identifier(parser, opening_token);
+			if (expression) {
+				return expression;
+			}
+		}
+
+		parser.acorn_error(err);
+	}
+}

node_modules/svelte/src/compiler/phases/1-parse/read/options.js

@@ -0,0 +1,261 @@
+/** @import { ObjectExpression } from 'estree' */
+/** @import { AST } from '#compiler' */
+import { NAMESPACE_MATHML, NAMESPACE_SVG } from '../../../../constants.js';
+import * as e from '../../../errors.js';
+
+/**
+ * @param {AST.SvelteOptionsRaw} node
+ * @returns {AST.Root['options']}
+ */
+export default function read_options(node) {
+	/** @type {AST.SvelteOptions} */
+	const component_options = {
+		start: node.start,
+		end: node.end,
+		// @ts-ignore
+		attributes: node.attributes
+	};
+
+	if (!node) {
+		return component_options;
+	}
+
+	for (const attribute of node.attributes) {
+		if (attribute.type !== 'Attribute') {
+			e.svelte_options_invalid_attribute(attribute);
+		}
+
+		const { name } = attribute;
+
+		switch (name) {
+			case 'runes': {
+				component_options.runes = get_boolean_value(attribute);
+				break;
+			}
+			case 'tag': {
+				e.svelte_options_deprecated_tag(attribute);
+				break; // eslint doesn't know this is unnecessary
+			}
+			case 'customElement': {
+				/** @type {AST.SvelteOptions['customElement']} */
+				const ce = {};
+				const { value: v } = attribute;
+				const value = v === true || Array.isArray(v) ? v : [v];
+
+				if (value === true) {
+					e.svelte_options_invalid_customelement(attribute);
+				} else if (value[0].type === 'Text') {
+					const tag = get_static_value(attribute);
+					validate_tag(attribute, tag);
+					ce.tag = tag;
+					component_options.customElement = ce;
+					break;
+				} else if (value[0].expression.type !== 'ObjectExpression') {
+					// Before Svelte 4 it was necessary to explicitly set customElement to null or else you'd get a warning.
+					// This is no longer necessary, but for backwards compat just skip in this case now.
+					if (value[0].expression.type === 'Literal' && value[0].expression.value === null) {
+						break;
+					}
+					e.svelte_options_invalid_customelement(attribute);
+				}
+
+				/** @type {Array<[string, any]>} */
+				const properties = [];
+				for (const property of value[0].expression.properties) {
+					if (
+						property.type !== 'Property' ||
+						property.computed ||
+						property.key.type !== 'Identifier'
+					) {
+						e.svelte_options_invalid_customelement(attribute);
+					}
+					properties.push([property.key.name, property.value]);
+				}
+
+				const tag = properties.find(([name]) => name === 'tag');
+				if (tag) {
+					const tag_value = tag[1]?.value;
+					validate_tag(tag, tag_value);
+					ce.tag = tag_value;
+				}
+
+				const props = properties.find(([name]) => name === 'props')?.[1];
+				if (props) {
+					if (props.type !== 'ObjectExpression') {
+						e.svelte_options_invalid_customelement_props(attribute);
+					}
+					ce.props = {};
+					for (const property of /** @type {ObjectExpression} */ (props).properties) {
+						if (
+							property.type !== 'Property' ||
+							property.computed ||
+							property.key.type !== 'Identifier' ||
+							property.value.type !== 'ObjectExpression'
+						) {
+							e.svelte_options_invalid_customelement_props(attribute);
+						}
+						ce.props[property.key.name] = {};
+						for (const prop of property.value.properties) {
+							if (
+								prop.type !== 'Property' ||
+								prop.computed ||
+								prop.key.type !== 'Identifier' ||
+								prop.value.type !== 'Literal'
+							) {
+								e.svelte_options_invalid_customelement_props(attribute);
+							}
+
+							if (prop.key.name === 'type') {
+								if (
+									['String', 'Number', 'Boolean', 'Array', 'Object'].indexOf(
+										/** @type {string} */ (prop.value.value)
+									) === -1
+								) {
+									e.svelte_options_invalid_customelement_props(attribute);
+								}
+								ce.props[property.key.name].type = /** @type {any} */ (prop.value.value);
+							} else if (prop.key.name === 'reflect') {
+								if (typeof prop.value.value !== 'boolean') {
+									e.svelte_options_invalid_customelement_props(attribute);
+								}
+								ce.props[property.key.name].reflect = prop.value.value;
+							} else if (prop.key.name === 'attribute') {
+								if (typeof prop.value.value !== 'string') {
+									e.svelte_options_invalid_customelement_props(attribute);
+								}
+								ce.props[property.key.name].attribute = prop.value.value;
+							} else {
+								e.svelte_options_invalid_customelement_props(attribute);
+							}
+						}
+					}
+				}
+
+				const shadow = properties.find(([name]) => name === 'shadow')?.[1];
+				if (shadow) {
+					const shadowdom = shadow?.value;
+					if (shadowdom !== 'open' && shadowdom !== 'none') {
+						e.svelte_options_invalid_customelement_shadow(shadow);
+					}
+					ce.shadow = shadowdom;
+				}
+
+				const extend = properties.find(([name]) => name === 'extend')?.[1];
+				if (extend) {
+					ce.extend = extend;
+				}
+
+				component_options.customElement = ce;
+				break;
+			}
+			case 'namespace': {
+				const value = get_static_value(attribute);
+
+				if (value === NAMESPACE_SVG) {
+					component_options.namespace = 'svg';
+				} else if (value === NAMESPACE_MATHML) {
+					component_options.namespace = 'mathml';
+				} else if (value === 'html' || value === 'mathml' || value === 'svg') {
+					component_options.namespace = value;
+				} else {
+					e.svelte_options_invalid_attribute_value(attribute, `"html", "mathml" or "svg"`);
+				}
+
+				break;
+			}
+			case 'css': {
+				const value = get_static_value(attribute);
+
+				if (value === 'injected') {
+					component_options.css = value;
+				} else {
+					e.svelte_options_invalid_attribute_value(attribute, `"injected"`);
+				}
+
+				break;
+			}
+			case 'immutable': {
+				component_options.immutable = get_boolean_value(attribute);
+				break;
+			}
+			case 'preserveWhitespace': {
+				component_options.preserveWhitespace = get_boolean_value(attribute);
+				break;
+			}
+			case 'accessors': {
+				component_options.accessors = get_boolean_value(attribute);
+				break;
+			}
+			default:
+				e.svelte_options_unknown_attribute(attribute, name);
+		}
+	}
+
+	return component_options;
+}
+
+/**
+ * @param {any} attribute
+ */
+function get_static_value(attribute) {
+	const { value } = attribute;
+
+	if (value === true) return true;
+
+	const chunk = Array.isArray(value) ? value[0] : value;
+
+	if (!chunk) return true;
+	if (value.length > 1) {
+		return null;
+	}
+	if (chunk.type === 'Text') return chunk.data;
+	if (chunk.expression.type !== 'Literal') {
+		return null;
+	}
+
+	return chunk.expression.value;
+}
+
+/**
+ * @param {any} attribute
+ */
+function get_boolean_value(attribute) {
+	const value = get_static_value(attribute);
+	if (typeof value !== 'boolean') {
+		e.svelte_options_invalid_attribute_value(attribute, 'true or false');
+	}
+	return value;
+}
+
+// https://html.spec.whatwg.org/multipage/custom-elements.html#valid-custom-element-name
+const tag_name_char =
+	'[a-z0-9_.\xB7\xC0-\xD6\xD8-\xF6\xF8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\u{10000}-\u{EFFFF}-]';
+const regex_valid_tag_name = new RegExp(`^[a-z]${tag_name_char}*-${tag_name_char}*$`, 'u');
+const reserved_tag_names = [
+	'annotation-xml',
+	'color-profile',
+	'font-face',
+	'font-face-src',
+	'font-face-uri',
+	'font-face-format',
+	'font-face-name',
+	'missing-glyph'
+];
+
+/**
+ * @param {any} attribute
+ * @param {string | null} tag
+ * @returns {asserts tag is string}
+ */
+function validate_tag(attribute, tag) {
+	if (typeof tag !== 'string') {
+		e.svelte_options_invalid_tagname(attribute);
+	}
+	if (tag) {
+		if (!regex_valid_tag_name.test(tag)) {
+			e.svelte_options_invalid_tagname(attribute);
+		} else if (reserved_tag_names.includes(tag)) {
+			e.svelte_options_reserved_tagname(attribute);
+		}
+	}
+}

node_modules/svelte/src/compiler/phases/1-parse/read/script.js

@@ -0,0 +1,90 @@
+/** @import { Program } from 'estree' */
+/** @import { AST } from '#compiler' */
+/** @import { Parser } from '../index.js' */
+import * as acorn from '../acorn.js';
+import { regex_not_newline_characters } from '../../patterns.js';
+import * as e from '../../../errors.js';
+import * as w from '../../../warnings.js';
+import { is_text_attribute } from '../../../utils/ast.js';
+
+const regex_closing_script_tag = /<\/script\s*>/;
+const regex_starts_with_closing_script_tag = /^<\/script\s*>/;
+
+const RESERVED_ATTRIBUTES = ['server', 'client', 'worker', 'test', 'default'];
+const ALLOWED_ATTRIBUTES = ['context', 'generics', 'lang', 'module'];
+
+/**
+ * @param {Parser} parser
+ * @param {number} start
+ * @param {Array<AST.Attribute | AST.SpreadAttribute | AST.Directive>} attributes
+ * @returns {AST.Script}
+ */
+export function read_script(parser, start, attributes) {
+	const script_start = parser.index;
+	const data = parser.read_until(regex_closing_script_tag);
+	if (parser.index >= parser.template.length) {
+		e.element_unclosed(parser.template.length, 'script');
+	}
+
+	const source =
+		parser.template.slice(0, script_start).replace(regex_not_newline_characters, ' ') + data;
+	parser.read(regex_starts_with_closing_script_tag);
+
+	/** @type {Program} */
+	let ast;
+
+	try {
+		ast = acorn.parse(source, parser.ts, true);
+	} catch (err) {
+		parser.acorn_error(err);
+	}
+
+	// TODO is this necessary?
+	ast.start = script_start;
+
+	/** @type {'default' | 'module'} */
+	let context = 'default';
+
+	for (const attribute of /** @type {AST.Attribute[]} */ (attributes)) {
+		if (RESERVED_ATTRIBUTES.includes(attribute.name)) {
+			e.script_reserved_attribute(attribute, attribute.name);
+		}
+
+		if (!ALLOWED_ATTRIBUTES.includes(attribute.name)) {
+			w.script_unknown_attribute(attribute);
+		}
+
+		if (attribute.name === 'module') {
+			if (attribute.value !== true) {
+				// Deliberately a generic code to future-proof for potential other attributes
+				e.script_invalid_attribute_value(attribute, attribute.name);
+			}
+
+			context = 'module';
+		}
+
+		if (attribute.name === 'context') {
+			if (attribute.value === true || !is_text_attribute(attribute)) {
+				e.script_invalid_context(attribute);
+			}
+
+			const value = attribute.value[0].data;
+
+			if (value !== 'module') {
+				e.script_invalid_context(attribute);
+			}
+
+			context = 'module';
+		}
+	}
+
+	return {
+		type: 'Script',
+		start,
+		end: parser.index,
+		context,
+		content: ast,
+		// @ts-ignore
+		attributes
+	};
+}

node_modules/svelte/src/compiler/phases/1-parse/read/style.js

@@ -0,0 +1,625 @@
+/** @import { AST } from '#compiler' */
+/** @import { Parser } from '../index.js' */
+import * as e from '../../../errors.js';
+
+const REGEX_MATCHER = /^[~^$*|]?=/;
+const REGEX_CLOSING_BRACKET = /[\s\]]/;
+const REGEX_ATTRIBUTE_FLAGS = /^[a-zA-Z]+/; // only `i` and `s` are valid today, but make it future-proof
+const REGEX_COMBINATOR = /^(\+|~|>|\|\|)/;
+const REGEX_PERCENTAGE = /^\d+(\.\d+)?%/;
+const REGEX_NTH_OF =
+	/^(even|odd|\+?(\d+|\d*n(\s*[+-]\s*\d+)?)|-\d*n(\s*\+\s*\d+))((?=\s*[,)])|\s+of\s+)/;
+const REGEX_WHITESPACE_OR_COLON = /[\s:]/;
+const REGEX_LEADING_HYPHEN_OR_DIGIT = /-?\d/;
+const REGEX_VALID_IDENTIFIER_CHAR = /[a-zA-Z0-9_-]/;
+const REGEX_COMMENT_CLOSE = /\*\//;
+const REGEX_HTML_COMMENT_CLOSE = /-->/;
+
+/**
+ * @param {Parser} parser
+ * @param {number} start
+ * @param {Array<AST.Attribute | AST.SpreadAttribute | AST.Directive>} attributes
+ * @returns {AST.CSS.StyleSheet}
+ */
+export default function read_style(parser, start, attributes) {
+	const content_start = parser.index;
+	const children = read_body(parser, '</style');
+	const content_end = parser.index;
+
+	parser.read(/^<\/style\s*>/);
+
+	return {
+		type: 'StyleSheet',
+		start,
+		end: parser.index,
+		attributes,
+		children,
+		content: {
+			start: content_start,
+			end: content_end,
+			styles: parser.template.slice(content_start, content_end),
+			comment: null
+		}
+	};
+}
+
+/**
+ * @param {Parser} parser
+ * @param {string} close
+ * @returns {any[]}
+ */
+function read_body(parser, close) {
+	/** @type {Array<AST.CSS.Rule | AST.CSS.Atrule>} */
+	const children = [];
+
+	while (parser.index < parser.template.length) {
+		allow_comment_or_whitespace(parser);
+
+		if (parser.match(close)) {
+			return children;
+		}
+
+		if (parser.match('@')) {
+			children.push(read_at_rule(parser));
+		} else {
+			children.push(read_rule(parser));
+		}
+	}
+
+	e.expected_token(parser.template.length, close);
+}
+
+/**
+ * @param {Parser} parser
+ * @returns {AST.CSS.Atrule}
+ */
+function read_at_rule(parser) {
+	const start = parser.index;
+	parser.eat('@', true);
+
+	const name = read_identifier(parser);
+
+	const prelude = read_value(parser);
+
+	/** @type {AST.CSS.Block | null} */
+	let block = null;
+
+	if (parser.match('{')) {
+		// e.g. `@media (...) {...}`
+		block = read_block(parser);
+	} else {
+		// e.g. `@import '...'`
+		parser.eat(';', true);
+	}
+
+	return {
+		type: 'Atrule',
+		start,
+		end: parser.index,
+		name,
+		prelude,
+		block
+	};
+}
+
+/**
+ * @param {Parser} parser
+ * @returns {AST.CSS.Rule}
+ */
+function read_rule(parser) {
+	const start = parser.index;
+
+	return {
+		type: 'Rule',
+		prelude: read_selector_list(parser),
+		block: read_block(parser),
+		start,
+		end: parser.index,
+		metadata: {
+			parent_rule: null,
+			has_local_selectors: false,
+			is_global_block: false
+		}
+	};
+}
+
+/**
+ * @param {Parser} parser
+ * @param {boolean} [inside_pseudo_class]
+ * @returns {AST.CSS.SelectorList}
+ */
+function read_selector_list(parser, inside_pseudo_class = false) {
+	/** @type {AST.CSS.ComplexSelector[]} */
+	const children = [];
+
+	allow_comment_or_whitespace(parser);
+
+	const start = parser.index;
+
+	while (parser.index < parser.template.length) {
+		children.push(read_selector(parser, inside_pseudo_class));
+
+		const end = parser.index;
+
+		allow_comment_or_whitespace(parser);
+
+		if (inside_pseudo_class ? parser.match(')') : parser.match('{')) {
+			return {
+				type: 'SelectorList',
+				start,
+				end,
+				children
+			};
+		} else {
+			parser.eat(',', true);
+			allow_comment_or_whitespace(parser);
+		}
+	}
+
+	e.unexpected_eof(parser.template.length);
+}
+
+/**
+ * @param {Parser} parser
+ * @param {boolean} [inside_pseudo_class]
+ * @returns {AST.CSS.ComplexSelector}
+ */
+function read_selector(parser, inside_pseudo_class = false) {
+	const list_start = parser.index;
+
+	/** @type {AST.CSS.RelativeSelector[]} */
+	const children = [];
+
+	/**
+	 * @param {AST.CSS.Combinator | null} combinator
+	 * @param {number} start
+	 * @returns {AST.CSS.RelativeSelector}
+	 */
+	function create_selector(combinator, start) {
+		return {
+			type: 'RelativeSelector',
+			combinator,
+			selectors: [],
+			start,
+			end: -1,
+			metadata: {
+				is_global: false,
+				is_global_like: false,
+				scoped: false
+			}
+		};
+	}
+
+	/** @type {AST.CSS.RelativeSelector} */
+	let relative_selector = create_selector(null, parser.index);
+
+	while (parser.index < parser.template.length) {
+		let start = parser.index;
+
+		if (parser.eat('&')) {
+			relative_selector.selectors.push({
+				type: 'NestingSelector',
+				name: '&',
+				start,
+				end: parser.index
+			});
+		} else if (parser.eat('*')) {
+			let name = '*';
+
+			if (parser.eat('|')) {
+				// * is the namespace (which we ignore)
+				name = read_identifier(parser);
+			}
+
+			relative_selector.selectors.push({
+				type: 'TypeSelector',
+				name,
+				start,
+				end: parser.index
+			});
+		} else if (parser.eat('#')) {
+			relative_selector.selectors.push({
+				type: 'IdSelector',
+				name: read_identifier(parser),
+				start,
+				end: parser.index
+			});
+		} else if (parser.eat('.')) {
+			relative_selector.selectors.push({
+				type: 'ClassSelector',
+				name: read_identifier(parser),
+				start,
+				end: parser.index
+			});
+		} else if (parser.eat('::')) {
+			relative_selector.selectors.push({
+				type: 'PseudoElementSelector',
+				name: read_identifier(parser),
+				start,
+				end: parser.index
+			});
+			// We read the inner selectors of a pseudo element to ensure it parses correctly,
+			// but we don't do anything with the result.
+			if (parser.eat('(')) {
+				read_selector_list(parser, true);
+				parser.eat(')', true);
+			}
+		} else if (parser.eat(':')) {
+			const name = read_identifier(parser);
+
+			/** @type {null | AST.CSS.SelectorList} */
+			let args = null;
+
+			if (parser.eat('(')) {
+				args = read_selector_list(parser, true);
+				parser.eat(')', true);
+			}
+
+			relative_selector.selectors.push({
+				type: 'PseudoClassSelector',
+				name,
+				args,
+				start,
+				end: parser.index
+			});
+		} else if (parser.eat('[')) {
+			parser.allow_whitespace();
+			const name = read_identifier(parser);
+			parser.allow_whitespace();
+
+			/** @type {string | null} */
+			let value = null;
+
+			const matcher = parser.read(REGEX_MATCHER);
+
+			if (matcher) {
+				parser.allow_whitespace();
+				value = read_attribute_value(parser);
+			}
+
+			parser.allow_whitespace();
+
+			const flags = parser.read(REGEX_ATTRIBUTE_FLAGS);
+
+			parser.allow_whitespace();
+			parser.eat(']', true);
+
+			relative_selector.selectors.push({
+				type: 'AttributeSelector',
+				start,
+				end: parser.index,
+				name,
+				matcher,
+				value,
+				flags
+			});
+		} else if (inside_pseudo_class && parser.match_regex(REGEX_NTH_OF)) {
+			// nth of matcher must come before combinator matcher to prevent collision else the '+' in '+2n-1' would be parsed as a combinator
+
+			relative_selector.selectors.push({
+				type: 'Nth',
+				value: /**@type {string} */ (parser.read(REGEX_NTH_OF)),
+				start,
+				end: parser.index
+			});
+		} else if (parser.match_regex(REGEX_PERCENTAGE)) {
+			relative_selector.selectors.push({
+				type: 'Percentage',
+				value: /** @type {string} */ (parser.read(REGEX_PERCENTAGE)),
+				start,
+				end: parser.index
+			});
+		} else if (!parser.match_regex(REGEX_COMBINATOR)) {
+			let name = read_identifier(parser);
+
+			if (parser.eat('|')) {
+				// we ignore the namespace when trying to find matching element classes
+				name = read_identifier(parser);
+			}
+
+			relative_selector.selectors.push({
+				type: 'TypeSelector',
+				name,
+				start,
+				end: parser.index
+			});
+		}
+
+		const index = parser.index;
+		allow_comment_or_whitespace(parser);
+
+		if (parser.match(',') || (inside_pseudo_class ? parser.match(')') : parser.match('{'))) {
+			// rewind, so we know whether to continue building the selector list
+			parser.index = index;
+
+			relative_selector.end = index;
+			children.push(relative_selector);
+
+			return {
+				type: 'ComplexSelector',
+				start: list_start,
+				end: index,
+				children,
+				metadata: {
+					rule: null,
+					used: false
+				}
+			};
+		}
+
+		parser.index = index;
+		const combinator = read_combinator(parser);
+
+		if (combinator) {
+			if (relative_selector.selectors.length > 0) {
+				relative_selector.end = index;
+				children.push(relative_selector);
+			}
+
+			// ...and start a new one
+			relative_selector = create_selector(combinator, combinator.start);
+
+			parser.allow_whitespace();
+
+			if (parser.match(',') || (inside_pseudo_class ? parser.match(')') : parser.match('{'))) {
+				e.css_selector_invalid(parser.index);
+			}
+		}
+	}
+
+	e.unexpected_eof(parser.template.length);
+}
+
+/**
+ * @param {Parser} parser
+ * @returns {AST.CSS.Combinator | null}
+ */
+function read_combinator(parser) {
+	const start = parser.index;
+	parser.allow_whitespace();
+
+	const index = parser.index;
+	const name = parser.read(REGEX_COMBINATOR);
+
+	if (name) {
+		const end = parser.index;
+		parser.allow_whitespace();
+
+		return {
+			type: 'Combinator',
+			name,
+			start: index,
+			end
+		};
+	}
+
+	if (parser.index !== start) {
+		return {
+			type: 'Combinator',
+			name: ' ',
+			start,
+			end: parser.index
+		};
+	}
+
+	return null;
+}
+
+/**
+ * @param {Parser} parser
+ * @returns {AST.CSS.Block}
+ */
+function read_block(parser) {
+	const start = parser.index;
+
+	parser.eat('{', true);
+
+	/** @type {Array<AST.CSS.Declaration | AST.CSS.Rule | AST.CSS.Atrule>} */
+	const children = [];
+
+	while (parser.index < parser.template.length) {
+		allow_comment_or_whitespace(parser);
+
+		if (parser.match('}')) {
+			break;
+		} else {
+			children.push(read_block_item(parser));
+		}
+	}
+
+	parser.eat('}', true);
+
+	return {
+		type: 'Block',
+		start,
+		end: parser.index,
+		children
+	};
+}
+
+/**
+ * Reads a declaration, rule or at-rule
+ *
+ * @param {Parser} parser
+ * @returns {AST.CSS.Declaration | AST.CSS.Rule | AST.CSS.Atrule}
+ */
+function read_block_item(parser) {
+	if (parser.match('@')) {
+		return read_at_rule(parser);
+	}
+
+	// read ahead to understand whether we're dealing with a declaration or a nested rule.
+	// this involves some duplicated work, but avoids a try-catch that would disguise errors
+	const start = parser.index;
+	read_value(parser);
+	const char = parser.template[parser.index];
+	parser.index = start;
+
+	return char === '{' ? read_rule(parser) : read_declaration(parser);
+}
+
+/**
+ * @param {Parser} parser
+ * @returns {AST.CSS.Declaration}
+ */
+function read_declaration(parser) {
+	const start = parser.index;
+
+	const property = parser.read_until(REGEX_WHITESPACE_OR_COLON);
+	parser.allow_whitespace();
+	parser.eat(':');
+	let index = parser.index;
+	parser.allow_whitespace();
+
+	const value = read_value(parser);
+
+	if (!value && !property.startsWith('--')) {
+		e.css_empty_declaration({ start, end: index });
+	}
+
+	const end = parser.index;
+
+	if (!parser.match('}')) {
+		parser.eat(';', true);
+	}
+
+	return {
+		type: 'Declaration',
+		start,
+		end,
+		property,
+		value
+	};
+}
+
+/**
+ * @param {Parser} parser
+ * @returns {string}
+ */
+function read_value(parser) {
+	let value = '';
+	let escaped = false;
+	let in_url = false;
+
+	/** @type {null | '"' | "'"} */
+	let quote_mark = null;
+
+	while (parser.index < parser.template.length) {
+		const char = parser.template[parser.index];
+
+		if (escaped) {
+			value += '\\' + char;
+			escaped = false;
+		} else if (char === '\\') {
+			escaped = true;
+		} else if (char === quote_mark) {
+			quote_mark = null;
+		} else if (char === ')') {
+			in_url = false;
+		} else if (quote_mark === null && (char === '"' || char === "'")) {
+			quote_mark = char;
+		} else if (char === '(' && value.slice(-3) === 'url') {
+			in_url = true;
+		} else if ((char === ';' || char === '{' || char === '}') && !in_url && !quote_mark) {
+			return value.trim();
+		}
+
+		value += char;
+
+		parser.index++;
+	}
+
+	e.unexpected_eof(parser.template.length);
+}
+
+/**
+ * Read a property that may or may not be quoted, e.g.
+ * `foo` or `'foo bar'` or `"foo bar"`
+ * @param {Parser} parser
+ */
+function read_attribute_value(parser) {
+	let value = '';
+	let escaped = false;
+	const quote_mark = parser.eat('"') ? '"' : parser.eat("'") ? "'" : null;
+
+	while (parser.index < parser.template.length) {
+		const char = parser.template[parser.index];
+		if (escaped) {
+			value += '\\' + char;
+			escaped = false;
+		} else if (char === '\\') {
+			escaped = true;
+		} else if (quote_mark ? char === quote_mark : REGEX_CLOSING_BRACKET.test(char)) {
+			if (quote_mark) {
+				parser.eat(quote_mark, true);
+			}
+
+			return value.trim();
+		} else {
+			value += char;
+		}
+
+		parser.index++;
+	}
+
+	e.unexpected_eof(parser.template.length);
+}
+
+/**
+ * https://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
+ * @param {Parser} parser
+ */
+function read_identifier(parser) {
+	const start = parser.index;
+
+	let identifier = '';
+
+	if (parser.match('--') || parser.match_regex(REGEX_LEADING_HYPHEN_OR_DIGIT)) {
+		e.css_expected_identifier(start);
+	}
+
+	let escaped = false;
+
+	while (parser.index < parser.template.length) {
+		const char = parser.template[parser.index];
+		if (escaped) {
+			identifier += '\\' + char;
+			escaped = false;
+		} else if (char === '\\') {
+			escaped = true;
+		} else if (
+			/** @type {number} */ (char.codePointAt(0)) >= 160 ||
+			REGEX_VALID_IDENTIFIER_CHAR.test(char)
+		) {
+			identifier += char;
+		} else {
+			break;
+		}
+
+		parser.index++;
+	}
+
+	if (identifier === '') {
+		e.css_expected_identifier(start);
+	}
+
+	return identifier;
+}
+
+/** @param {Parser} parser */
+function allow_comment_or_whitespace(parser) {
+	parser.allow_whitespace();
+	while (parser.match('/*') || parser.match('<!--')) {
+		if (parser.eat('/*')) {
+			parser.read_until(REGEX_COMMENT_CLOSE);
+			parser.eat('*/', true);
+		}
+
+		if (parser.eat('<!--')) {
+			parser.read_until(REGEX_HTML_COMMENT_CLOSE);
+			parser.eat('-->', true);
+		}
+
+		parser.allow_whitespace();
+	}
+}

node_modules/svelte/src/compiler/phases/1-parse/remove_typescript_nodes.js

@@ -0,0 +1,147 @@
+/** @import { Context, Visitors } from 'zimmerframe' */
+/** @import { FunctionExpression, FunctionDeclaration } from 'estree' */
+import { walk } from 'zimmerframe';
+import * as b from '../../utils/builders.js';
+import * as e from '../../errors.js';
+
+/**
+ * @param {FunctionExpression | FunctionDeclaration} node
+ * @param {Context<any, any>} context
+ */
+function remove_this_param(node, context) {
+	if (node.params[0]?.type === 'Identifier' && node.params[0].name === 'this') {
+		node.params.shift();
+	}
+	return context.next();
+}
+
+/** @type {Visitors<any, null>} */
+const visitors = {
+	_(node, context) {
+		const n = context.next() ?? node;
+
+		// TODO there may come a time when we decide to preserve type annotations.
+		// until that day comes, we just delete them so they don't confuse esrap
+		delete n.typeAnnotation;
+		delete n.typeParameters;
+		delete n.returnType;
+		delete n.accessibility;
+	},
+	Decorator(node) {
+		e.typescript_invalid_feature(node, 'decorators (related TSC proposal is not stage 4 yet)');
+	},
+	ImportDeclaration(node) {
+		if (node.importKind === 'type') return b.empty;
+
+		if (node.specifiers?.length > 0) {
+			const specifiers = node.specifiers.filter((/** @type {any} */ s) => s.importKind !== 'type');
+			if (specifiers.length === 0) return b.empty;
+
+			return { ...node, specifiers };
+		}
+
+		return node;
+	},
+	ExportNamedDeclaration(node, context) {
+		if (node.exportKind === 'type') return b.empty;
+
+		if (node.declaration) {
+			const result = context.next();
+			if (result?.declaration?.type === 'EmptyStatement') {
+				return b.empty;
+			}
+			return result;
+		}
+
+		if (node.specifiers) {
+			const specifiers = node.specifiers.filter((/** @type {any} */ s) => s.exportKind !== 'type');
+			if (specifiers.length === 0) return b.empty;
+
+			return { ...node, specifiers };
+		}
+
+		return node;
+	},
+	ExportDefaultDeclaration(node) {
+		if (node.exportKind === 'type') return b.empty;
+		return node;
+	},
+	ExportAllDeclaration(node) {
+		if (node.exportKind === 'type') return b.empty;
+		return node;
+	},
+	PropertyDefinition(node, { next }) {
+		if (node.accessor) {
+			e.typescript_invalid_feature(
+				node,
+				'accessor fields (related TSC proposal is not stage 4 yet)'
+			);
+		}
+		return next();
+	},
+	TSAsExpression(node, context) {
+		return context.visit(node.expression);
+	},
+	TSSatisfiesExpression(node, context) {
+		return context.visit(node.expression);
+	},
+	TSNonNullExpression(node, context) {
+		return context.visit(node.expression);
+	},
+	TSInterfaceDeclaration() {
+		return b.empty;
+	},
+	TSTypeAliasDeclaration() {
+		return b.empty;
+	},
+	TSEnumDeclaration(node) {
+		e.typescript_invalid_feature(node, 'enums');
+	},
+	TSParameterProperty(node, context) {
+		if ((node.readonly || node.accessibility) && context.path.at(-2)?.kind === 'constructor') {
+			e.typescript_invalid_feature(node, 'accessibility modifiers on constructor parameters');
+		}
+		return context.visit(node.parameter);
+	},
+	TSInstantiationExpression(node, context) {
+		return context.visit(node.expression);
+	},
+	FunctionExpression: remove_this_param,
+	FunctionDeclaration: remove_this_param,
+	TSDeclareFunction() {
+		return b.empty;
+	},
+	ClassDeclaration(node, context) {
+		if (node.declare) {
+			return b.empty;
+		}
+		delete node.implements;
+		return context.next();
+	},
+	VariableDeclaration(node, context) {
+		if (node.declare) {
+			return b.empty;
+		}
+		return context.next();
+	},
+	TSModuleDeclaration(node, context) {
+		if (!node.body) return b.empty;
+
+		// namespaces can contain non-type nodes
+		const cleaned = /** @type {any[]} */ (node.body.body).map((entry) => context.visit(entry));
+		if (cleaned.some((entry) => entry !== b.empty)) {
+			e.typescript_invalid_feature(node, 'namespaces with non-type nodes');
+		}
+
+		return b.empty;
+	}
+};
+
+/**
+ * @template T
+ * @param {T} ast
+ * @returns {T}
+ */
+export function remove_typescript_nodes(ast) {
+	return walk(ast, null, visitors);
+}

node_modules/svelte/src/compiler/phases/1-parse/state/element.js

@@ -0,0 +1,823 @@
+/** @import { Expression } from 'estree' */
+/** @import { AST } from '#compiler' */
+/** @import { Parser } from '../index.js' */
+import { is_void } from '../../../../utils.js';
+import read_expression from '../read/expression.js';
+import { read_script } from '../read/script.js';
+import read_style from '../read/style.js';
+import { decode_character_references } from '../utils/html.js';
+import * as e from '../../../errors.js';
+import * as w from '../../../warnings.js';
+import { create_fragment } from '../utils/create.js';
+import { create_attribute, create_expression_metadata, is_element_node } from '../../nodes.js';
+import { get_attribute_expression, is_expression_attribute } from '../../../utils/ast.js';
+import { closing_tag_omitted } from '../../../../html-tree-validation.js';
+import { list } from '../../../utils/string.js';
+import { regex_whitespace } from '../../patterns.js';
+
+const regex_invalid_unquoted_attribute_value = /^(\/>|[\s"'=<>`])/;
+const regex_closing_textarea_tag = /^<\/textarea(\s[^>]*)?>/i;
+const regex_closing_comment = /-->/;
+const regex_whitespace_or_slash_or_closing_tag = /(\s|\/|>)/;
+const regex_token_ending_character = /[\s=/>"']/;
+const regex_starts_with_quote_characters = /^["']/;
+const regex_attribute_value = /^(?:"([^"]*)"|'([^'])*'|([^>\s]+))/;
+const regex_valid_element_name =
+	/^(?:![a-zA-Z]+|[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?|[a-zA-Z][a-zA-Z0-9]*:[a-zA-Z][a-zA-Z0-9-]*[a-zA-Z0-9])$/;
+export const regex_valid_component_name =
+	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#identifiers adjusted for our needs
+	// (must start with uppercase letter if no dots, can contain dots)
+	/^(?:\p{Lu}[$\u200c\u200d\p{ID_Continue}.]*|\p{ID_Start}[$\u200c\u200d\p{ID_Continue}]*(?:\.[$\u200c\u200d\p{ID_Continue}]+)+)$/u;
+
+/** @type {Map<string, AST.ElementLike['type']>} */
+const root_only_meta_tags = new Map([
+	['svelte:head', 'SvelteHead'],
+	['svelte:options', 'SvelteOptions'],
+	['svelte:window', 'SvelteWindow'],
+	['svelte:document', 'SvelteDocument'],
+	['svelte:body', 'SvelteBody']
+]);
+
+/** @type {Map<string, AST.ElementLike['type']>} */
+const meta_tags = new Map([
+	...root_only_meta_tags,
+	['svelte:element', 'SvelteElement'],
+	['svelte:component', 'SvelteComponent'],
+	['svelte:self', 'SvelteSelf'],
+	['svelte:fragment', 'SvelteFragment'],
+	['svelte:boundary', 'SvelteBoundary']
+]);
+
+/** @param {Parser} parser */
+export default function element(parser) {
+	const start = parser.index++;
+
+	let parent = parser.current();
+
+	if (parser.eat('!--')) {
+		const data = parser.read_until(regex_closing_comment);
+		parser.eat('-->', true);
+
+		parser.append({
+			type: 'Comment',
+			start,
+			end: parser.index,
+			data
+		});
+
+		return;
+	}
+
+	const is_closing_tag = parser.eat('/');
+	const name = parser.read_until(regex_whitespace_or_slash_or_closing_tag);
+
+	if (is_closing_tag) {
+		parser.allow_whitespace();
+		parser.eat('>', true);
+
+		if (is_void(name)) {
+			e.void_element_invalid_content(start);
+		}
+
+		// close any elements that don't have their own closing tags, e.g. <div><p></div>
+		while (/** @type {AST.RegularElement} */ (parent).name !== name) {
+			if (parser.loose) {
+				// If the previous element did interpret the next opening tag as an attribute, backtrack
+				if (is_element_node(parent)) {
+					const last = parent.attributes.at(-1);
+					if (last?.type === 'Attribute' && last.name === `<${name}`) {
+						parser.index = last.start;
+						parent.attributes.pop();
+						break;
+					}
+				}
+			}
+
+			if (parent.type !== 'RegularElement' && !parser.loose) {
+				if (parser.last_auto_closed_tag && parser.last_auto_closed_tag.tag === name) {
+					e.element_invalid_closing_tag_autoclosed(start, name, parser.last_auto_closed_tag.reason);
+				} else {
+					e.element_invalid_closing_tag(start, name);
+				}
+			}
+
+			parent.end = start;
+			parser.pop();
+
+			parent = parser.current();
+		}
+
+		parent.end = parser.index;
+		parser.pop();
+
+		if (parser.last_auto_closed_tag && parser.stack.length < parser.last_auto_closed_tag.depth) {
+			parser.last_auto_closed_tag = undefined;
+		}
+
+		return;
+	}
+
+	if (name.startsWith('svelte:') && !meta_tags.has(name)) {
+		const bounds = { start: start + 1, end: start + 1 + name.length };
+		e.svelte_meta_invalid_tag(bounds, list(Array.from(meta_tags.keys())));
+	}
+
+	if (!regex_valid_element_name.test(name) && !regex_valid_component_name.test(name)) {
+		// <div. -> in the middle of typing -> allow in loose mode
+		if (!parser.loose || !name.endsWith('.')) {
+			const bounds = { start: start + 1, end: start + 1 + name.length };
+			e.tag_invalid_name(bounds);
+		}
+	}
+
+	if (root_only_meta_tags.has(name)) {
+		if (name in parser.meta_tags) {
+			e.svelte_meta_duplicate(start, name);
+		}
+
+		if (parent.type !== 'Root') {
+			e.svelte_meta_invalid_placement(start, name);
+		}
+
+		parser.meta_tags[name] = true;
+	}
+
+	const type = meta_tags.has(name)
+		? meta_tags.get(name)
+		: regex_valid_component_name.test(name) || (parser.loose && name.endsWith('.'))
+			? 'Component'
+			: name === 'title' && parent_is_head(parser.stack)
+				? 'TitleElement'
+				: // TODO Svelte 6/7: once slots are removed in favor of snippets, always keep slot as a regular element
+					name === 'slot' && !parent_is_shadowroot_template(parser.stack)
+					? 'SlotElement'
+					: 'RegularElement';
+
+	/** @type {AST.ElementLike} */
+	const element =
+		type === 'RegularElement'
+			? {
+					type,
+					start,
+					end: -1,
+					name,
+					attributes: [],
+					fragment: create_fragment(true),
+					metadata: {
+						svg: false,
+						mathml: false,
+						scoped: false,
+						has_spread: false,
+						path: []
+					}
+				}
+			: /** @type {AST.ElementLike} */ ({
+					type,
+					start,
+					end: -1,
+					name,
+					attributes: [],
+					fragment: create_fragment(true),
+					metadata: {
+						// unpopulated at first, differs between types
+					}
+				});
+
+	parser.allow_whitespace();
+
+	if (parent.type === 'RegularElement' && closing_tag_omitted(parent.name, name)) {
+		parent.end = start;
+		parser.pop();
+		parser.last_auto_closed_tag = {
+			tag: parent.name,
+			reason: name,
+			depth: parser.stack.length
+		};
+	}
+
+	/** @type {string[]} */
+	const unique_names = [];
+
+	const current = parser.current();
+	const is_top_level_script_or_style =
+		(name === 'script' || name === 'style') && current.type === 'Root';
+
+	const read = is_top_level_script_or_style ? read_static_attribute : read_attribute;
+
+	let attribute;
+	while ((attribute = read(parser))) {
+		// animate and transition can only be specified once per element so no need
+		// to check here, use can be used multiple times, same for the on directive
+		// finally let already has error handling in case of duplicate variable names
+		if (
+			attribute.type === 'Attribute' ||
+			attribute.type === 'BindDirective' ||
+			attribute.type === 'StyleDirective' ||
+			attribute.type === 'ClassDirective'
+		) {
+			// `bind:attribute` and `attribute` are just the same but `class:attribute`,
+			// `style:attribute` and `attribute` are different and should be allowed together
+			// so we concatenate the type while normalizing the type for BindDirective
+			const type = attribute.type === 'BindDirective' ? 'Attribute' : attribute.type;
+			if (unique_names.includes(type + attribute.name)) {
+				e.attribute_duplicate(attribute);
+				// <svelte:element bind:this this=..> is allowed
+			} else if (attribute.name !== 'this') {
+				unique_names.push(type + attribute.name);
+			}
+		}
+
+		element.attributes.push(attribute);
+		parser.allow_whitespace();
+	}
+
+	if (element.type === 'SvelteComponent') {
+		const index = element.attributes.findIndex(
+			/** @param {any} attr */
+			(attr) => attr.type === 'Attribute' && attr.name === 'this'
+		);
+		if (index === -1) {
+			e.svelte_component_missing_this(start);
+		}
+
+		const definition = /** @type {AST.Attribute} */ (element.attributes.splice(index, 1)[0]);
+		if (!is_expression_attribute(definition)) {
+			e.svelte_component_invalid_this(definition.start);
+		}
+
+		element.expression = get_attribute_expression(definition);
+	}
+
+	if (element.type === 'SvelteElement') {
+		const index = element.attributes.findIndex(
+			/** @param {any} attr */
+			(attr) => attr.type === 'Attribute' && attr.name === 'this'
+		);
+		if (index === -1) {
+			e.svelte_element_missing_this(start);
+		}
+
+		const definition = /** @type {AST.Attribute} */ (element.attributes.splice(index, 1)[0]);
+
+		if (definition.value === true) {
+			e.svelte_element_missing_this(definition);
+		}
+
+		if (!is_expression_attribute(definition)) {
+			w.svelte_element_invalid_this(definition);
+
+			// note that this is wrong, in the case of e.g. `this="h{n}"` — it will result in `<h>`.
+			// it would be much better to just error here, but we are preserving the existing buggy
+			// Svelte 4 behaviour out of an overabundance of caution regarding breaking changes.
+			// TODO in 6.0, error
+			const chunk = /** @type {Array<AST.ExpressionTag | AST.Text>} */ (definition.value)[0];
+			element.tag =
+				chunk.type === 'Text'
+					? {
+							type: 'Literal',
+							value: chunk.data,
+							raw: `'${chunk.raw}'`,
+							start: chunk.start,
+							end: chunk.end
+						}
+					: chunk.expression;
+		} else {
+			element.tag = get_attribute_expression(definition);
+		}
+	}
+
+	if (is_top_level_script_or_style) {
+		parser.eat('>', true);
+
+		/** @type {AST.Comment | null} */
+		let prev_comment = null;
+		for (let i = current.fragment.nodes.length - 1; i >= 0; i--) {
+			const node = current.fragment.nodes[i];
+
+			if (i === current.fragment.nodes.length - 1 && node.end !== start) {
+				break;
+			}
+
+			if (node.type === 'Comment') {
+				prev_comment = node;
+				break;
+			} else if (node.type !== 'Text' || node.data.trim()) {
+				break;
+			}
+		}
+
+		if (name === 'script') {
+			const content = read_script(parser, start, element.attributes);
+			if (prev_comment) {
+				// We take advantage of the fact that the root will never have leadingComments set,
+				// and set the previous comment to it so that the warning mechanism can later
+				// inspect the root and see if there was a html comment before it silencing specific warnings.
+				content.content.leadingComments = [{ type: 'Line', value: prev_comment.data }];
+			}
+
+			if (content.context === 'module') {
+				if (current.module) e.script_duplicate(start);
+				current.module = content;
+			} else {
+				if (current.instance) e.script_duplicate(start);
+				current.instance = content;
+			}
+		} else {
+			const content = read_style(parser, start, element.attributes);
+			content.content.comment = prev_comment;
+
+			if (current.css) e.style_duplicate(start);
+			current.css = content;
+		}
+		return;
+	}
+
+	parser.append(element);
+
+	const self_closing = parser.eat('/') || is_void(name);
+	const closed = parser.eat('>', true, false);
+
+	// Loose parsing mode
+	if (!closed) {
+		// We may have eaten an opening `<` of the next element and treated it as an attribute...
+		const last = element.attributes.at(-1);
+		if (last?.type === 'Attribute' && last.name === '<') {
+			parser.index = last.start;
+			element.attributes.pop();
+		} else {
+			// ... or we may have eaten part of a following block ...
+			const prev_1 = parser.template[parser.index - 1];
+			const prev_2 = parser.template[parser.index - 2];
+			const current = parser.template[parser.index];
+			if (prev_2 === '{' && prev_1 === '/') {
+				parser.index -= 2;
+			} else if (prev_1 === '{' && (current === '#' || current === '@' || current === ':')) {
+				parser.index -= 1;
+			} else {
+				// ... or we're followed by whitespace, for example near the end of the template,
+				// which we want to take in so that language tools has more room to work with
+				parser.allow_whitespace();
+				if (parser.index === parser.template.length) {
+					while (
+						parser.index < parser.template_untrimmed.length &&
+						regex_whitespace.test(parser.template_untrimmed[parser.index])
+					) {
+						parser.index++;
+					}
+				}
+			}
+		}
+	}
+
+	if (self_closing || !closed) {
+		// don't push self-closing elements onto the stack
+		element.end = parser.index;
+	} else if (name === 'textarea') {
+		// special case
+		element.fragment.nodes = read_sequence(
+			parser,
+			() => regex_closing_textarea_tag.test(parser.template.slice(parser.index)),
+			'inside <textarea>'
+		);
+		parser.read(regex_closing_textarea_tag);
+		element.end = parser.index;
+	} else if (name === 'script' || name === 'style') {
+		// special case
+		const start = parser.index;
+		const data = parser.read_until(new RegExp(`</${name}>`));
+		const end = parser.index;
+
+		/** @type {AST.Text} */
+		const node = {
+			start,
+			end,
+			type: 'Text',
+			data,
+			raw: data
+		};
+
+		element.fragment.nodes.push(node);
+		parser.eat(`</${name}>`, true);
+		element.end = parser.index;
+	} else {
+		parser.stack.push(element);
+		parser.fragments.push(element.fragment);
+	}
+}
+
+/** @param {AST.TemplateNode[]} stack */
+function parent_is_head(stack) {
+	let i = stack.length;
+	while (i--) {
+		const { type } = stack[i];
+		if (type === 'SvelteHead') return true;
+		if (type === 'RegularElement' || type === 'Component') return false;
+	}
+	return false;
+}
+
+/** @param {AST.TemplateNode[]} stack */
+function parent_is_shadowroot_template(stack) {
+	// https://developer.chrome.com/docs/css-ui/declarative-shadow-dom#building_a_declarative_shadow_root
+	let i = stack.length;
+	while (i--) {
+		if (
+			stack[i].type === 'RegularElement' &&
+			/** @type {AST.RegularElement} */ (stack[i]).attributes.some(
+				(a) => a.type === 'Attribute' && a.name === 'shadowrootmode'
+			)
+		) {
+			return true;
+		}
+	}
+	return false;
+}
+
+/**
+ * @param {Parser} parser
+ * @returns {AST.Attribute | null}
+ */
+function read_static_attribute(parser) {
+	const start = parser.index;
+
+	const name = parser.read_until(regex_token_ending_character);
+	if (!name) return null;
+
+	/** @type {true | Array<AST.Text | AST.ExpressionTag>} */
+	let value = true;
+
+	if (parser.eat('=')) {
+		parser.allow_whitespace();
+		let raw = parser.match_regex(regex_attribute_value);
+		if (!raw) {
+			e.expected_attribute_value(parser.index);
+		}
+
+		parser.index += raw.length;
+
+		const quoted = raw[0] === '"' || raw[0] === "'";
+		if (quoted) {
+			raw = raw.slice(1, -1);
+		}
+
+		value = [
+			{
+				start: parser.index - raw.length - (quoted ? 1 : 0),
+				end: quoted ? parser.index - 1 : parser.index,
+				type: 'Text',
+				raw: raw,
+				data: decode_character_references(raw, true)
+			}
+		];
+	}
+
+	if (parser.match_regex(regex_starts_with_quote_characters)) {
+		e.expected_token(parser.index, '=');
+	}
+
+	return create_attribute(name, start, parser.index, value);
+}
+
+/**
+ * @param {Parser} parser
+ * @returns {AST.Attribute | AST.SpreadAttribute | AST.Directive | null}
+ */
+function read_attribute(parser) {
+	const start = parser.index;
+
+	if (parser.eat('{')) {
+		parser.allow_whitespace();
+
+		if (parser.eat('...')) {
+			const expression = read_expression(parser);
+
+			parser.allow_whitespace();
+			parser.eat('}', true);
+
+			/** @type {AST.SpreadAttribute} */
+			const spread = {
+				type: 'SpreadAttribute',
+				start,
+				end: parser.index,
+				expression,
+				metadata: {
+					expression: create_expression_metadata()
+				}
+			};
+
+			return spread;
+		} else {
+			const value_start = parser.index;
+			let name = parser.read_identifier();
+
+			if (name === null) {
+				if (
+					parser.loose &&
+					(parser.match('#') || parser.match('/') || parser.match('@') || parser.match(':'))
+				) {
+					// We're likely in an unclosed opening tag and did read part of a block.
+					// Return null to not crash the parser so it can continue with closing the tag.
+					return null;
+				} else if (parser.loose && parser.match('}')) {
+					// Likely in the middle of typing, just created the shorthand
+					name = '';
+				} else {
+					e.attribute_empty_shorthand(start);
+				}
+			}
+
+			parser.allow_whitespace();
+			parser.eat('}', true);
+
+			/** @type {AST.ExpressionTag} */
+			const expression = {
+				type: 'ExpressionTag',
+				start: value_start,
+				end: value_start + name.length,
+				expression: {
+					start: value_start,
+					end: value_start + name.length,
+					type: 'Identifier',
+					name
+				},
+				metadata: {
+					expression: create_expression_metadata()
+				}
+			};
+
+			return create_attribute(name, start, parser.index, expression);
+		}
+	}
+
+	const name = parser.read_until(regex_token_ending_character);
+	if (!name) return null;
+
+	let end = parser.index;
+
+	parser.allow_whitespace();
+
+	const colon_index = name.indexOf(':');
+	const type = colon_index !== -1 && get_directive_type(name.slice(0, colon_index));
+
+	/** @type {true | AST.ExpressionTag | Array<AST.Text | AST.ExpressionTag>} */
+	let value = true;
+	if (parser.eat('=')) {
+		parser.allow_whitespace();
+
+		if (parser.template[parser.index] === '/' && parser.template[parser.index + 1] === '>') {
+			const char_start = parser.index;
+			parser.index++; // consume '/'
+			value = [
+				{
+					start: char_start,
+					end: char_start + 1,
+					type: 'Text',
+					raw: '/',
+					data: '/'
+				}
+			];
+			end = parser.index;
+		} else {
+			value = read_attribute_value(parser);
+			end = parser.index;
+		}
+	} else if (parser.match_regex(regex_starts_with_quote_characters)) {
+		e.expected_token(parser.index, '=');
+	}
+
+	if (type) {
+		const [directive_name, ...modifiers] = name.slice(colon_index + 1).split('|');
+
+		if (directive_name === '') {
+			e.directive_missing_name({ start, end: start + colon_index + 1 }, name);
+		}
+
+		if (type === 'StyleDirective') {
+			return {
+				start,
+				end,
+				type,
+				name: directive_name,
+				modifiers: /** @type {Array<'important'>} */ (modifiers),
+				value,
+				metadata: {
+					expression: create_expression_metadata()
+				}
+			};
+		}
+
+		const first_value = value === true ? undefined : Array.isArray(value) ? value[0] : value;
+
+		/** @type {Expression | null} */
+		let expression = null;
+
+		if (first_value) {
+			const attribute_contains_text =
+				/** @type {any[]} */ (value).length > 1 || first_value.type === 'Text';
+			if (attribute_contains_text) {
+				e.directive_invalid_value(/** @type {number} */ (first_value.start));
+			} else {
+				// TODO throw a parser error in a future version here if this `[ExpressionTag]` instead of `ExpressionTag`,
+				// which means stringified value, which isn't allowed for some directives?
+				expression = first_value.expression;
+			}
+		}
+
+		/** @type {AST.Directive} */
+		const directive = {
+			start,
+			end,
+			type,
+			name: directive_name,
+			expression,
+			metadata: {
+				expression: create_expression_metadata()
+			}
+		};
+
+		// @ts-expect-error we do this separately from the declaration to avoid upsetting typescript
+		directive.modifiers = modifiers;
+
+		if (directive.type === 'TransitionDirective') {
+			const direction = name.slice(0, colon_index);
+			directive.intro = direction === 'in' || direction === 'transition';
+			directive.outro = direction === 'out' || direction === 'transition';
+		}
+
+		// Directive name is expression, e.g. <p class:isRed />
+		if (
+			(directive.type === 'BindDirective' || directive.type === 'ClassDirective') &&
+			!directive.expression
+		) {
+			directive.expression = /** @type {any} */ ({
+				start: start + colon_index + 1,
+				end,
+				type: 'Identifier',
+				name: directive.name
+			});
+		}
+
+		return directive;
+	}
+
+	return create_attribute(name, start, end, value);
+}
+
+/**
+ * @param {string} name
+ * @returns {any}
+ */
+function get_directive_type(name) {
+	if (name === 'use') return 'UseDirective';
+	if (name === 'animate') return 'AnimateDirective';
+	if (name === 'bind') return 'BindDirective';
+	if (name === 'class') return 'ClassDirective';
+	if (name === 'style') return 'StyleDirective';
+	if (name === 'on') return 'OnDirective';
+	if (name === 'let') return 'LetDirective';
+	if (name === 'in' || name === 'out' || name === 'transition') return 'TransitionDirective';
+	return false;
+}
+
+/**
+ * @param {Parser} parser
+ * @return {AST.ExpressionTag | Array<AST.ExpressionTag | AST.Text>}
+ */
+function read_attribute_value(parser) {
+	const quote_mark = parser.eat("'") ? "'" : parser.eat('"') ? '"' : null;
+	if (quote_mark && parser.eat(quote_mark)) {
+		return [
+			{
+				start: parser.index - 1,
+				end: parser.index - 1,
+				type: 'Text',
+				raw: '',
+				data: ''
+			}
+		];
+	}
+
+	/** @type {Array<AST.ExpressionTag | AST.Text>} */
+	let value;
+	try {
+		value = read_sequence(
+			parser,
+			() => {
+				// handle common case of quote marks existing outside of regex for performance reasons
+				if (quote_mark) return parser.match(quote_mark);
+				return !!parser.match_regex(regex_invalid_unquoted_attribute_value);
+			},
+			'in attribute value'
+		);
+	} catch (/** @type {any} */ error) {
+		if (error.code === 'js_parse_error') {
+			// if the attribute value didn't close + self-closing tag
+			// eg: `<Component test={{a:1} />`
+			// acorn may throw a `Unterminated regular expression` because of `/>`
+			const pos = error.position?.[0];
+			if (pos !== undefined && parser.template.slice(pos - 1, pos + 1) === '/>') {
+				parser.index = pos;
+				e.expected_token(pos, quote_mark || '}');
+			}
+		}
+		throw error;
+	}
+
+	if (value.length === 0 && !quote_mark) {
+		e.expected_attribute_value(parser.index);
+	}
+
+	if (quote_mark) parser.index += 1;
+
+	if (quote_mark || value.length > 1 || value[0].type === 'Text') {
+		return value;
+	} else {
+		return value[0];
+	}
+}
+
+/**
+ * @param {Parser} parser
+ * @param {() => boolean} done
+ * @param {string} location
+ * @returns {any[]}
+ */
+function read_sequence(parser, done, location) {
+	/** @type {AST.Text} */
+	let current_chunk = {
+		start: parser.index,
+		end: -1,
+		type: 'Text',
+		raw: '',
+		data: ''
+	};
+
+	/** @type {Array<AST.Text | AST.ExpressionTag>} */
+	const chunks = [];
+
+	/** @param {number} end */
+	function flush(end) {
+		if (current_chunk.raw) {
+			current_chunk.data = decode_character_references(current_chunk.raw, true);
+			current_chunk.end = end;
+			chunks.push(current_chunk);
+		}
+	}
+
+	while (parser.index < parser.template.length) {
+		const index = parser.index;
+
+		if (done()) {
+			flush(parser.index);
+			return chunks;
+		} else if (parser.eat('{')) {
+			if (parser.match('#')) {
+				const index = parser.index - 1;
+				parser.eat('#');
+				const name = parser.read_until(/[^a-z]/);
+				e.block_invalid_placement(index, name, location);
+			} else if (parser.match('@')) {
+				const index = parser.index - 1;
+				parser.eat('@');
+				const name = parser.read_until(/[^a-z]/);
+				e.tag_invalid_placement(index, name, location);
+			}
+
+			flush(parser.index - 1);
+
+			parser.allow_whitespace();
+			const expression = read_expression(parser);
+			parser.allow_whitespace();
+			parser.eat('}', true);
+
+			/** @type {AST.ExpressionTag} */
+			const chunk = {
+				type: 'ExpressionTag',
+				start: index,
+				end: parser.index,
+				expression,
+				metadata: {
+					expression: create_expression_metadata()
+				}
+			};
+
+			chunks.push(chunk);
+
+			current_chunk = {
+				start: parser.index,
+				end: -1,
+				type: 'Text',
+				raw: '',
+				data: ''
+			};
+		} else {
+			current_chunk.raw += parser.template[parser.index++];
+		}
+	}
+
+	if (parser.loose) {
+		return chunks;
+	} else {
+		e.unexpected_eof(parser.template.length);
+	}
+}

node_modules/svelte/src/compiler/phases/1-parse/state/fragment.js

@@ -0,0 +1,17 @@
+/** @import { Parser } from '../index.js' */
+import element from './element.js';
+import tag from './tag.js';
+import text from './text.js';
+
+/** @param {Parser} parser */
+export default function fragment(parser) {
+	if (parser.match('<')) {
+		return element;
+	}
+
+	if (parser.match('{')) {
+		return tag;
+	}
+
+	return text;
+}

node_modules/svelte/src/compiler/phases/1-parse/state/tag.js

@@ -0,0 +1,715 @@
+/** @import { ArrowFunctionExpression, Expression, Identifier, Pattern } from 'estree' */
+/** @import { AST } from '#compiler' */
+/** @import { Parser } from '../index.js' */
+import { walk } from 'zimmerframe';
+import * as e from '../../../errors.js';
+import { create_expression_metadata } from '../../nodes.js';
+import { parse_expression_at } from '../acorn.js';
+import read_pattern from '../read/context.js';
+import read_expression, { get_loose_identifier } from '../read/expression.js';
+import { create_fragment } from '../utils/create.js';
+
+const regex_whitespace_with_closing_curly_brace = /^\s*}/;
+
+/** @param {Parser} parser */
+export default function tag(parser) {
+	const start = parser.index;
+	parser.index += 1;
+
+	parser.allow_whitespace();
+
+	if (parser.eat('#')) return open(parser);
+	if (parser.eat(':')) return next(parser);
+	if (parser.eat('@')) return special(parser);
+	if (parser.match('/')) {
+		if (!parser.match('/*') && !parser.match('//')) {
+			parser.eat('/');
+			return close(parser);
+		}
+	}
+
+	const expression = read_expression(parser);
+
+	parser.allow_whitespace();
+	parser.eat('}', true);
+
+	parser.append({
+		type: 'ExpressionTag',
+		start,
+		end: parser.index,
+		expression,
+		metadata: {
+			expression: create_expression_metadata()
+		}
+	});
+}
+
+/** @param {Parser} parser */
+function open(parser) {
+	let start = parser.index - 2;
+	while (parser.template[start] !== '{') start -= 1;
+
+	if (parser.eat('if')) {
+		parser.require_whitespace();
+
+		/** @type {AST.IfBlock} */
+		const block = parser.append({
+			type: 'IfBlock',
+			elseif: false,
+			start,
+			end: -1,
+			test: read_expression(parser),
+			consequent: create_fragment(),
+			alternate: null
+		});
+
+		parser.allow_whitespace();
+		parser.eat('}', true);
+
+		parser.stack.push(block);
+		parser.fragments.push(block.consequent);
+
+		return;
+	}
+
+	if (parser.eat('each')) {
+		parser.require_whitespace();
+
+		const template = parser.template;
+		let end = parser.template.length;
+
+		/** @type {Expression | undefined} */
+		let expression;
+
+		// we have to do this loop because `{#each x as { y = z }}` fails to parse —
+		// the `as { y = z }` is treated as an Expression but it's actually a Pattern.
+		// the 'fix' is to backtrack and hide everything from the `as` onwards, until
+		// we get a valid expression
+		while (!expression) {
+			try {
+				expression = read_expression(parser, undefined, true);
+			} catch (err) {
+				end = /** @type {any} */ (err).position[0] - 2;
+
+				while (end > start && parser.template.slice(end, end + 2) !== 'as') {
+					end -= 1;
+				}
+
+				if (end <= start) {
+					if (parser.loose) {
+						expression = get_loose_identifier(parser);
+						if (expression) {
+							break;
+						}
+					}
+					throw err;
+				}
+
+				// @ts-expect-error parser.template is meant to be readonly, this is a special case
+				parser.template = template.slice(0, end);
+			}
+		}
+
+		// @ts-expect-error
+		parser.template = template;
+
+		parser.allow_whitespace();
+
+		// {#each} blocks must declare a context – {#each list as item}
+		if (!parser.match('as')) {
+			// this could be a TypeScript assertion that was erroneously eaten.
+
+			if (expression.type === 'SequenceExpression') {
+				expression = expression.expressions[0];
+			}
+
+			let assertion = null;
+			let end = expression.end;
+
+			expression = walk(expression, null, {
+				// @ts-expect-error
+				TSAsExpression(node, context) {
+					if (node.end === /** @type {Expression} */ (expression).end) {
+						assertion = node;
+						end = node.expression.end;
+						return node.expression;
+					}
+
+					context.next();
+				}
+			});
+
+			expression.end = end;
+
+			if (assertion) {
+				// we can't reset `parser.index` to `expression.expression.end` because
+				// it will ignore any parentheses — we need to jump through this hoop
+				let end = /** @type {any} */ (/** @type {any} */ (assertion).typeAnnotation).start - 2;
+				while (parser.template.slice(end, end + 2) !== 'as') end -= 1;
+
+				parser.index = end;
+			}
+		}
+
+		/** @type {Pattern | null} */
+		let context = null;
+		let index;
+		let key;
+
+		if (parser.eat('as')) {
+			parser.require_whitespace();
+
+			context = read_pattern(parser);
+		} else {
+			// {#each Array.from({ length: 10 }), i} is read as a sequence expression,
+			// which is set back above - we now gotta reset the index as a consequence
+			// to properly read the , i part
+			parser.index = /** @type {number} */ (expression.end);
+		}
+
+		parser.allow_whitespace();
+
+		if (parser.eat(',')) {
+			parser.allow_whitespace();
+			index = parser.read_identifier();
+			if (!index) {
+				e.expected_identifier(parser.index);
+			}
+
+			parser.allow_whitespace();
+		}
+
+		if (parser.eat('(')) {
+			parser.allow_whitespace();
+
+			key = read_expression(parser, '(');
+			parser.allow_whitespace();
+			parser.eat(')', true);
+			parser.allow_whitespace();
+		}
+
+		const matches = parser.eat('}', true, false);
+
+		if (!matches) {
+			// Parser may have read the `as` as part of the expression (e.g. in `{#each foo. as x}`)
+			if (parser.template.slice(parser.index - 4, parser.index) === ' as ') {
+				const prev_index = parser.index;
+				context = read_pattern(parser);
+				parser.eat('}', true);
+				expression = {
+					type: 'Identifier',
+					name: '',
+					start: expression.start,
+					end: prev_index - 4
+				};
+			} else {
+				parser.eat('}', true); // rerun to produce the parser error
+			}
+		}
+
+		/** @type {AST.EachBlock} */
+		const block = parser.append({
+			type: 'EachBlock',
+			start,
+			end: -1,
+			expression,
+			body: create_fragment(),
+			context,
+			index,
+			key,
+			metadata: /** @type {any} */ (null) // filled in later
+		});
+
+		parser.stack.push(block);
+		parser.fragments.push(block.body);
+
+		return;
+	}
+
+	if (parser.eat('await')) {
+		parser.require_whitespace();
+		const expression = read_expression(parser);
+		parser.allow_whitespace();
+
+		/** @type {AST.AwaitBlock} */
+		const block = parser.append({
+			type: 'AwaitBlock',
+			start,
+			end: -1,
+			expression,
+			value: null,
+			error: null,
+			pending: null,
+			then: null,
+			catch: null
+		});
+
+		if (parser.eat('then')) {
+			if (parser.match_regex(regex_whitespace_with_closing_curly_brace)) {
+				parser.allow_whitespace();
+			} else {
+				parser.require_whitespace();
+				block.value = read_pattern(parser);
+				parser.allow_whitespace();
+			}
+
+			block.then = create_fragment();
+			parser.fragments.push(block.then);
+		} else if (parser.eat('catch')) {
+			if (parser.match_regex(regex_whitespace_with_closing_curly_brace)) {
+				parser.allow_whitespace();
+			} else {
+				parser.require_whitespace();
+				block.error = read_pattern(parser);
+				parser.allow_whitespace();
+			}
+
+			block.catch = create_fragment();
+			parser.fragments.push(block.catch);
+		} else {
+			block.pending = create_fragment();
+			parser.fragments.push(block.pending);
+		}
+
+		const matches = parser.eat('}', true, false);
+
+		// Parser may have read the `then/catch` as part of the expression (e.g. in `{#await foo. then x}`)
+		if (!matches) {
+			if (parser.template.slice(parser.index - 6, parser.index) === ' then ') {
+				const prev_index = parser.index;
+				block.value = read_pattern(parser);
+				parser.eat('}', true);
+				block.expression = {
+					type: 'Identifier',
+					name: '',
+					start: expression.start,
+					end: prev_index - 6
+				};
+				block.then = block.pending;
+				block.pending = null;
+			} else if (parser.template.slice(parser.index - 7, parser.index) === ' catch ') {
+				const prev_index = parser.index;
+				block.error = read_pattern(parser);
+				parser.eat('}', true);
+				block.expression = {
+					type: 'Identifier',
+					name: '',
+					start: expression.start,
+					end: prev_index - 7
+				};
+				block.catch = block.pending;
+				block.pending = null;
+			} else {
+				parser.eat('}', true); // rerun to produce the parser error
+			}
+		}
+
+		parser.stack.push(block);
+
+		return;
+	}
+
+	if (parser.eat('key')) {
+		parser.require_whitespace();
+
+		const expression = read_expression(parser);
+		parser.allow_whitespace();
+
+		parser.eat('}', true);
+
+		/** @type {AST.KeyBlock} */
+		const block = parser.append({
+			type: 'KeyBlock',
+			start,
+			end: -1,
+			expression,
+			fragment: create_fragment()
+		});
+
+		parser.stack.push(block);
+		parser.fragments.push(block.fragment);
+
+		return;
+	}
+
+	if (parser.eat('snippet')) {
+		parser.require_whitespace();
+
+		const name_start = parser.index;
+		let name = parser.read_identifier();
+		const name_end = parser.index;
+
+		if (name === null) {
+			if (parser.loose) {
+				name = '';
+			} else {
+				e.expected_identifier(parser.index);
+			}
+		}
+
+		parser.allow_whitespace();
+
+		const params_start = parser.index;
+
+		const matched = parser.eat('(', true, false);
+
+		if (matched) {
+			let parentheses = 1;
+
+			while (parser.index < parser.template.length && (!parser.match(')') || parentheses !== 1)) {
+				if (parser.match('(')) parentheses++;
+				if (parser.match(')')) parentheses--;
+				parser.index += 1;
+			}
+
+			parser.eat(')', true);
+		}
+
+		const prelude = parser.template.slice(0, params_start).replace(/\S/g, ' ');
+		const params = parser.template.slice(params_start, parser.index);
+
+		let function_expression = matched
+			? /** @type {ArrowFunctionExpression} */ (
+					parse_expression_at(prelude + `${params} => {}`, parser.ts, params_start)
+				)
+			: { params: [] };
+
+		parser.allow_whitespace();
+		parser.eat('}', true);
+
+		/** @type {AST.SnippetBlock} */
+		const block = parser.append({
+			type: 'SnippetBlock',
+			start,
+			end: -1,
+			expression: {
+				type: 'Identifier',
+				start: name_start,
+				end: name_end,
+				name
+			},
+			parameters: function_expression.params,
+			body: create_fragment(),
+			metadata: {
+				can_hoist: false,
+				sites: new Set()
+			}
+		});
+		parser.stack.push(block);
+		parser.fragments.push(block.body);
+
+		return;
+	}
+
+	e.expected_block_type(parser.index);
+}
+
+/** @param {Parser} parser */
+function next(parser) {
+	const start = parser.index - 1;
+
+	const block = parser.current(); // TODO type should not be TemplateNode, that's much too broad
+
+	if (block.type === 'IfBlock') {
+		if (!parser.eat('else')) e.expected_token(start, '{:else} or {:else if}');
+		if (parser.eat('if')) e.block_invalid_elseif(start);
+
+		parser.allow_whitespace();
+
+		parser.fragments.pop();
+
+		block.alternate = create_fragment();
+		parser.fragments.push(block.alternate);
+
+		// :else if
+		if (parser.eat('if')) {
+			parser.require_whitespace();
+
+			const expression = read_expression(parser);
+
+			parser.allow_whitespace();
+			parser.eat('}', true);
+
+			let elseif_start = start - 1;
+			while (parser.template[elseif_start] !== '{') elseif_start -= 1;
+
+			/** @type {AST.IfBlock} */
+			const child = parser.append({
+				start: elseif_start,
+				end: -1,
+				type: 'IfBlock',
+				elseif: true,
+				test: expression,
+				consequent: create_fragment(),
+				alternate: null
+			});
+
+			parser.stack.push(child);
+			parser.fragments.pop();
+			parser.fragments.push(child.consequent);
+		} else {
+			// :else
+			parser.allow_whitespace();
+			parser.eat('}', true);
+		}
+
+		return;
+	}
+
+	if (block.type === 'EachBlock') {
+		if (!parser.eat('else')) e.expected_token(start, '{:else}');
+
+		parser.allow_whitespace();
+		parser.eat('}', true);
+
+		block.fallback = create_fragment();
+
+		parser.fragments.pop();
+		parser.fragments.push(block.fallback);
+
+		return;
+	}
+
+	if (block.type === 'AwaitBlock') {
+		if (parser.eat('then')) {
+			if (block.then) {
+				e.block_duplicate_clause(start, '{:then}');
+			}
+
+			if (!parser.eat('}')) {
+				parser.require_whitespace();
+				block.value = read_pattern(parser);
+				parser.allow_whitespace();
+				parser.eat('}', true);
+			}
+
+			block.then = create_fragment();
+			parser.fragments.pop();
+			parser.fragments.push(block.then);
+
+			return;
+		}
+
+		if (parser.eat('catch')) {
+			if (block.catch) {
+				e.block_duplicate_clause(start, '{:catch}');
+			}
+
+			if (!parser.eat('}')) {
+				parser.require_whitespace();
+				block.error = read_pattern(parser);
+				parser.allow_whitespace();
+				parser.eat('}', true);
+			}
+
+			block.catch = create_fragment();
+			parser.fragments.pop();
+			parser.fragments.push(block.catch);
+
+			return;
+		}
+
+		e.expected_token(start, '{:then ...} or {:catch ...}');
+	}
+
+	e.block_invalid_continuation_placement(start);
+}
+
+/** @param {Parser} parser */
+function close(parser) {
+	const start = parser.index - 1;
+
+	let block = parser.current();
+	/** Only relevant/reached for loose parsing mode */
+	let matched;
+
+	switch (block.type) {
+		case 'IfBlock':
+			matched = parser.eat('if', true, false);
+
+			if (!matched) {
+				block.end = start - 1;
+				parser.pop();
+				close(parser);
+				return;
+			}
+
+			parser.allow_whitespace();
+			parser.eat('}', true);
+
+			while (block.elseif) {
+				block.end = parser.index;
+				parser.stack.pop();
+				block = /** @type {AST.IfBlock} */ (parser.current());
+			}
+
+			block.end = parser.index;
+			parser.pop();
+			return;
+
+		case 'EachBlock':
+			matched = parser.eat('each', true, false);
+			break;
+		case 'KeyBlock':
+			matched = parser.eat('key', true, false);
+			break;
+		case 'AwaitBlock':
+			matched = parser.eat('await', true, false);
+			break;
+		case 'SnippetBlock':
+			matched = parser.eat('snippet', true, false);
+			break;
+
+		case 'RegularElement':
+			if (parser.loose) {
+				matched = false;
+			} else {
+				// TODO handle implicitly closed elements
+				e.block_unexpected_close(start);
+			}
+			break;
+
+		default:
+			e.block_unexpected_close(start);
+	}
+
+	if (!matched) {
+		block.end = start - 1;
+		parser.pop();
+		close(parser);
+		return;
+	}
+
+	parser.allow_whitespace();
+	parser.eat('}', true);
+	block.end = parser.index;
+	parser.pop();
+}
+
+/** @param {Parser} parser */
+function special(parser) {
+	let start = parser.index;
+	while (parser.template[start] !== '{') start -= 1;
+
+	if (parser.eat('html')) {
+		// {@html content} tag
+		parser.require_whitespace();
+
+		const expression = read_expression(parser);
+
+		parser.allow_whitespace();
+		parser.eat('}', true);
+
+		parser.append({
+			type: 'HtmlTag',
+			start,
+			end: parser.index,
+			expression
+		});
+
+		return;
+	}
+
+	if (parser.eat('debug')) {
+		/** @type {Identifier[]} */
+		let identifiers;
+
+		// Implies {@debug} which indicates "debug all"
+		if (parser.read(regex_whitespace_with_closing_curly_brace)) {
+			identifiers = [];
+		} else {
+			const expression = read_expression(parser);
+
+			identifiers =
+				expression.type === 'SequenceExpression'
+					? /** @type {Identifier[]} */ (expression.expressions)
+					: [/** @type {Identifier} */ (expression)];
+
+			identifiers.forEach(
+				/** @param {any} node */ (node) => {
+					if (node.type !== 'Identifier') {
+						e.debug_tag_invalid_arguments(/** @type {number} */ (node.start));
+					}
+				}
+			);
+
+			parser.allow_whitespace();
+			parser.eat('}', true);
+		}
+
+		parser.append({
+			type: 'DebugTag',
+			start,
+			end: parser.index,
+			identifiers
+		});
+
+		return;
+	}
+
+	if (parser.eat('const')) {
+		parser.require_whitespace();
+
+		const id = read_pattern(parser);
+		parser.allow_whitespace();
+
+		parser.eat('=', true);
+		parser.allow_whitespace();
+
+		const expression_start = parser.index;
+		const init = read_expression(parser);
+		if (
+			init.type === 'SequenceExpression' &&
+			!parser.template.substring(expression_start, init.start).includes('(')
+		) {
+			// const a = (b, c) is allowed but a = b, c = d is not;
+			e.const_tag_invalid_expression(init);
+		}
+		parser.allow_whitespace();
+
+		parser.eat('}', true);
+
+		parser.append({
+			type: 'ConstTag',
+			start,
+			end: parser.index,
+			declaration: {
+				type: 'VariableDeclaration',
+				kind: 'const',
+				declarations: [{ type: 'VariableDeclarator', id, init, start: id.start, end: init.end }],
+				start: start + 2, // start at const, not at @const
+				end: parser.index - 1
+			}
+		});
+	}
+
+	if (parser.eat('render')) {
+		// {@render foo(...)}
+		parser.require_whitespace();
+
+		const expression = read_expression(parser);
+
+		if (
+			expression.type !== 'CallExpression' &&
+			(expression.type !== 'ChainExpression' || expression.expression.type !== 'CallExpression')
+		) {
+			e.render_tag_invalid_expression(expression);
+		}
+
+		parser.allow_whitespace();
+		parser.eat('}', true);
+
+		parser.append({
+			type: 'RenderTag',
+			start,
+			end: parser.index,
+			expression: /** @type {AST.RenderTag['expression']} */ (expression),
+			metadata: {
+				dynamic: false,
+				arguments: [],
+				path: [],
+				snippets: new Set()
+			}
+		});
+	}
+}

node_modules/svelte/src/compiler/phases/1-parse/state/text.js

@@ -0,0 +1,23 @@
+/** @import { AST } from '#compiler' */
+/** @import { Parser } from '../index.js' */
+import { decode_character_references } from '../utils/html.js';
+
+/** @param {Parser} parser */
+export default function text(parser) {
+	const start = parser.index;
+
+	let data = '';
+
+	while (parser.index < parser.template.length && !parser.match('<') && !parser.match('{')) {
+		data += parser.template[parser.index++];
+	}
+
+	/** @type {AST.Text} */
+	parser.append({
+		type: 'Text',
+		start,
+		end: parser.index,
+		raw: data,
+		data: decode_character_references(data, false)
+	});
+}

node_modules/svelte/src/compiler/phases/1-parse/utils/bracket.js

@@ -0,0 +1,164 @@
+const SQUARE_BRACKET_OPEN = '[';
+const SQUARE_BRACKET_CLOSE = ']';
+const CURLY_BRACKET_OPEN = '{';
+const CURLY_BRACKET_CLOSE = '}';
+const PARENTHESES_OPEN = '(';
+const PARENTHESES_CLOSE = ')';
+
+/** @param {string} char */
+export function is_bracket_open(char) {
+	return char === SQUARE_BRACKET_OPEN || char === CURLY_BRACKET_OPEN;
+}
+
+/** @param {string} char */
+export function is_bracket_close(char) {
+	return char === SQUARE_BRACKET_CLOSE || char === CURLY_BRACKET_CLOSE;
+}
+
+/** @param {string} open */
+export function get_bracket_close(open) {
+	if (open === SQUARE_BRACKET_OPEN) {
+		return SQUARE_BRACKET_CLOSE;
+	}
+
+	if (open === CURLY_BRACKET_OPEN) {
+		return CURLY_BRACKET_CLOSE;
+	}
+
+	if (open === PARENTHESES_OPEN) {
+		return PARENTHESES_CLOSE;
+	}
+}
+
+/**
+ * @param {number} num
+ * @returns {number} Infinity if {@link num} is negative, else {@link num}.
+ */
+function infinity_if_negative(num) {
+	if (num < 0) {
+		return Infinity;
+	}
+	return num;
+}
+
+/**
+ * @param {string} string The string to search.
+ * @param {number} search_start_index The index to start searching at.
+ * @param {"'" | '"' | '`'} string_start_char The character that started this string.
+ * @returns {number} The index of the end of this string expression, or `Infinity` if not found.
+ */
+function find_string_end(string, search_start_index, string_start_char) {
+	let string_to_search;
+	if (string_start_char === '`') {
+		string_to_search = string;
+	} else {
+		// we could slice at the search start index, but this way the index remains valid
+		string_to_search = string.slice(
+			0,
+			infinity_if_negative(string.indexOf('\n', search_start_index))
+		);
+	}
+
+	return find_unescaped_char(string_to_search, search_start_index, string_start_char);
+}
+
+/**
+ * @param {string} string The string to search.
+ * @param {number} search_start_index The index to start searching at.
+ * @returns {number} The index of the end of this regex expression, or `Infinity` if not found.
+ */
+function find_regex_end(string, search_start_index) {
+	return find_unescaped_char(string, search_start_index, '/');
+}
+
+/**
+ *
+ * @param {string} string The string to search.
+ * @param {number} search_start_index The index to begin the search at.
+ * @param {string} char The character to search for.
+ * @returns {number} The index of the first unescaped instance of {@link char}, or `Infinity` if not found.
+ */
+function find_unescaped_char(string, search_start_index, char) {
+	let i = search_start_index;
+	while (true) {
+		const found_index = string.indexOf(char, i);
+		if (found_index === -1) {
+			return Infinity;
+		}
+		if (count_leading_backslashes(string, found_index - 1) % 2 === 0) {
+			return found_index;
+		}
+		i = found_index + 1;
+	}
+}
+
+/**
+ * Count consecutive leading backslashes before {@link search_start_index}.
+ *
+ * @example
+ * ```js
+ * count_leading_backslashes('\\\\\\foo', 2); // 3 (the backslashes have to be escaped in the string literal, there are three in reality)
+ * ```
+ *
+ * @param {string} string The string to search.
+ * @param {number} search_start_index The index to begin the search at.
+ */
+function count_leading_backslashes(string, search_start_index) {
+	let i = search_start_index;
+	let count = 0;
+	while (string[i] === '\\') {
+		count++;
+		i--;
+	}
+	return count;
+}
+
+/**
+ * Finds the corresponding closing bracket, ignoring brackets found inside comments, strings, or regex expressions.
+ * @param {string} template The string to search.
+ * @param {number} index The index to begin the search at.
+ * @param {string} open The opening bracket (ex: `'{'` will search for `'}'`).
+ * @returns {number | undefined} The index of the closing bracket, or undefined if not found.
+ */
+export function find_matching_bracket(template, index, open) {
+	const close = get_bracket_close(open);
+	let brackets = 1;
+	let i = index;
+	while (brackets > 0 && i < template.length) {
+		const char = template[i];
+		switch (char) {
+			case "'":
+			case '"':
+			case '`':
+				i = find_string_end(template, i + 1, char) + 1;
+				continue;
+			case '/': {
+				const next_char = template[i + 1];
+				if (!next_char) continue;
+				if (next_char === '/') {
+					i = infinity_if_negative(template.indexOf('\n', i + 1)) + '\n'.length;
+					continue;
+				}
+				if (next_char === '*') {
+					i = infinity_if_negative(template.indexOf('*/', i + 1)) + '*/'.length;
+					continue;
+				}
+				i = find_regex_end(template, i + 1) + '/'.length;
+				continue;
+			}
+			default: {
+				const char = template[i];
+				if (char === open) {
+					brackets++;
+				} else if (char === close) {
+					brackets--;
+				}
+				if (brackets === 0) {
+					return i;
+				}
+				i++;
+			}
+		}
+	}
+	return undefined;
+}

node_modules/svelte/src/compiler/phases/1-parse/utils/create.js

@@ -0,0 +1,16 @@
+/** @import { AST } from '#compiler' */
+
+/**
+ * @param {any} transparent
+ * @returns {AST.Fragment}
+ */
+export function create_fragment(transparent = false) {
+	return {
+		type: 'Fragment',
+		nodes: [],
+		metadata: {
+			transparent,
+			dynamic: false
+		}
+	};
+}

node_modules/svelte/src/compiler/phases/1-parse/utils/fuzzymatch.js

@@ -0,0 +1,280 @@
+/**
+ * @param {string} name
+ * @param {string[]} names
+ * @returns {string | null}
+ */
+export default function fuzzymatch(name, names) {
+	if (names.length === 0) return null;
+
+	const set = new FuzzySet(names);
+	const matches = set.get(name);
+
+	return matches && matches[0][0] > 0.7 ? matches[0][1] : null;
+}
+
+// adapted from https://github.com/Glench/fuzzyset.js/blob/master/lib/fuzzyset.js
+// BSD Licensed
+
+const GRAM_SIZE_LOWER = 2;
+const GRAM_SIZE_UPPER = 3;
+
+// return an edit distance from 0 to 1
+
+/**
+ * @param {string} str1
+ * @param {string} str2
+ */
+function _distance(str1, str2) {
+	if (str1 === null && str2 === null) {
+		throw 'Trying to compare two null values';
+	}
+	if (str1 === null || str2 === null) return 0;
+	str1 = String(str1);
+	str2 = String(str2);
+
+	const distance = levenshtein(str1, str2);
+	return 1 - distance / Math.max(str1.length, str2.length);
+}
+
+// helper functions
+
+/**
+ * @param {string} str1
+ * @param {string} str2
+ */
+function levenshtein(str1, str2) {
+	/** @type {number[]} */
+	const current = [];
+	let prev = 0;
+	let value = 0;
+
+	for (let i = 0; i <= str2.length; i++) {
+		for (let j = 0; j <= str1.length; j++) {
+			if (i && j) {
+				if (str1.charAt(j - 1) === str2.charAt(i - 1)) {
+					value = prev;
+				} else {
+					value = Math.min(current[j], current[j - 1], prev) + 1;
+				}
+			} else {
+				value = i + j;
+			}
+
+			prev = current[j];
+			current[j] = value;
+		}
+	}
+
+	return /** @type {number} */ (current.pop());
+}
+
+const non_word_regex = /[^\w, ]+/;
+
+/**
+ * @param {string} value
+ * @param {any} gram_size
+ */
+function iterate_grams(value, gram_size = 2) {
+	const simplified = '-' + value.toLowerCase().replace(non_word_regex, '') + '-';
+	const len_diff = gram_size - simplified.length;
+	const results = [];
+
+	if (len_diff > 0) {
+		for (let i = 0; i < len_diff; ++i) {
+			value += '-';
+		}
+	}
+	for (let i = 0; i < simplified.length - gram_size + 1; ++i) {
+		results.push(simplified.slice(i, i + gram_size));
+	}
+	return results;
+}
+
+/**
+ * @param {string} value
+ * @param {any} gram_size
+ */
+function gram_counter(value, gram_size = 2) {
+	// return an object where key=gram, value=number of occurrences
+
+	/** @type {Record<string, number>} */
+	const result = {};
+	const grams = iterate_grams(value, gram_size);
+	let i = 0;
+
+	for (i; i < grams.length; ++i) {
+		if (grams[i] in result) {
+			result[grams[i]] += 1;
+		} else {
+			result[grams[i]] = 1;
+		}
+	}
+	return result;
+}
+
+/**
+ * @param {MatchTuple} a
+ * @param {MatchTuple} b
+ */
+function sort_descending(a, b) {
+	return b[0] - a[0];
+}
+
+class FuzzySet {
+	/** @type {Record<string, string>} */
+	exact_set = {};
+
+	/** @type {Record<string, [number, number][]>} */
+	match_dict = {};
+
+	/** @type {Record<string, number[]>} */
+	items = {};
+
+	/** @param {string[]} arr */
+	constructor(arr) {
+		// initialisation
+		for (let i = GRAM_SIZE_LOWER; i < GRAM_SIZE_UPPER + 1; ++i) {
+			this.items[i] = [];
+		}
+
+		// add all the items to the set
+		for (let i = 0; i < arr.length; ++i) {
+			this.add(arr[i]);
+		}
+	}
+
+	/** @param {string} value */
+	add(value) {
+		const normalized_value = value.toLowerCase();
+		if (normalized_value in this.exact_set) {
+			return false;
+		}
+
+		let i = GRAM_SIZE_LOWER;
+		for (i; i < GRAM_SIZE_UPPER + 1; ++i) {
+			this._add(value, i);
+		}
+	}
+
+	/**
+	 * @param {string} value
+	 * @param {number} gram_size
+	 */
+	_add(value, gram_size) {
+		const normalized_value = value.toLowerCase();
+		const items = this.items[gram_size] || [];
+		const index = items.length;
+
+		items.push(0);
+		const gram_counts = gram_counter(normalized_value, gram_size);
+		let sum_of_square_gram_counts = 0;
+		let gram;
+		let gram_count;
+
+		for (gram in gram_counts) {
+			gram_count = gram_counts[gram];
+			sum_of_square_gram_counts += Math.pow(gram_count, 2);
+			if (gram in this.match_dict) {
+				this.match_dict[gram].push([index, gram_count]);
+			} else {
+				this.match_dict[gram] = [[index, gram_count]];
+			}
+		}
+		const vector_normal = Math.sqrt(sum_of_square_gram_counts);
+		// @ts-ignore no idea what this code is doing
+		items[index] = [vector_normal, normalized_value];
+		this.items[gram_size] = items;
+		this.exact_set[normalized_value] = value;
+	}
+
+	/** @param {string} value */
+	get(value) {
+		const normalized_value = value.toLowerCase();
+		const result = this.exact_set[normalized_value];
+
+		if (result) {
+			return /** @type {MatchTuple[]} */ ([[1, result]]);
+		}
+
+		// start with high gram size and if there are no results, go to lower gram sizes
+		for (let gram_size = GRAM_SIZE_UPPER; gram_size >= GRAM_SIZE_LOWER; --gram_size) {
+			const results = this.__get(value, gram_size);
+			if (results.length > 0) return results;
+		}
+		return null;
+	}
+
+	/**
+	 * @param {string} value
+	 * @param {number} gram_size
+	 * @returns {MatchTuple[]}
+	 */
+	__get(value, gram_size) {
+		const normalized_value = value.toLowerCase();
+
+		/** @type {Record<string, number>} */
+		const matches = {};
+		const gram_counts = gram_counter(normalized_value, gram_size);
+		const items = this.items[gram_size];
+		let sum_of_square_gram_counts = 0;
+		let gram;
+		let gram_count;
+		let i;
+		let index;
+		let other_gram_count;
+
+		for (gram in gram_counts) {
+			gram_count = gram_counts[gram];
+			sum_of_square_gram_counts += Math.pow(gram_count, 2);
+			if (gram in this.match_dict) {
+				for (i = 0; i < this.match_dict[gram].length; ++i) {
+					index = this.match_dict[gram][i][0];
+					other_gram_count = this.match_dict[gram][i][1];
+					if (index in matches) {
+						matches[index] += gram_count * other_gram_count;
+					} else {
+						matches[index] = gram_count * other_gram_count;
+					}
+				}
+			}
+		}
+
+		const vector_normal = Math.sqrt(sum_of_square_gram_counts);
+
+		/** @type {MatchTuple[]} */
+		let results = [];
+		let match_score;
+
+		// build a results list of [score, str]
+		for (const match_index in matches) {
+			match_score = matches[match_index];
+			// @ts-ignore no idea what this code is doing
+			results.push([match_score / (vector_normal * items[match_index][0]), items[match_index][1]]);
+		}
+
+		results.sort(sort_descending);
+
+		/** @type {MatchTuple[]} */
+		let new_results = [];
+		const end_index = Math.min(50, results.length);
+		// truncate somewhat arbitrarily to 50
+		for (let i = 0; i < end_index; ++i) {
+			// @ts-ignore no idea what this code is doing
+			new_results.push([_distance(results[i][1], normalized_value), results[i][1]]);
+		}
+		results = new_results;
+		results.sort(sort_descending);
+
+		new_results = [];
+		for (let i = 0; i < results.length; ++i) {
+			if (results[i][0] === results[0][0]) {
+				// @ts-ignore no idea what this code is doing
+				new_results.push([results[i][0], this.exact_set[results[i][1]]]);
+			}
+		}
+
+		return new_results;
+	}
+}
+
+/** @typedef {[score: number, match: string]} MatchTuple */

node_modules/svelte/src/compiler/phases/1-parse/utils/html.js

@@ -0,0 +1,120 @@
+import entities from './entities.js';
+
+const windows_1252 = [
+	8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 710, 8240, 352, 8249, 338, 141, 381, 143, 144, 8216,
+	8217, 8220, 8221, 8226, 8211, 8212, 732, 8482, 353, 8250, 339, 157, 382, 376
+];
+
+/**
+ * @param {string} entity_name
+ * @param {boolean} is_attribute_value
+ */
+function reg_exp_entity(entity_name, is_attribute_value) {
+	// https://html.spec.whatwg.org/multipage/parsing.html#named-character-reference-state
+	// doesn't decode the html entity which not ends with ; and next character is =, number or alphabet in attribute value.
+	if (is_attribute_value && !entity_name.endsWith(';')) {
+		return `${entity_name}\\b(?!=)`;
+	}
+	return entity_name;
+}
+
+/** @param {boolean} is_attribute_value */
+function get_entity_pattern(is_attribute_value) {
+	const reg_exp_num = '#(?:x[a-fA-F\\d]+|\\d+)(?:;)?';
+	const reg_exp_entities = Object.keys(entities).map(
+		/** @param {any} entity_name */ (entity_name) => reg_exp_entity(entity_name, is_attribute_value)
+	);
+
+	const entity_pattern = new RegExp(`&(${reg_exp_num}|${reg_exp_entities.join('|')})`, 'g');
+
+	return entity_pattern;
+}
+
+const entity_pattern_content = get_entity_pattern(false);
+const entity_pattern_attr_value = get_entity_pattern(true);
+
+/**
+ * @param {string} html
+ * @param {boolean} is_attribute_value
+ */
+export function decode_character_references(html, is_attribute_value) {
+	const entity_pattern = is_attribute_value ? entity_pattern_attr_value : entity_pattern_content;
+	return html.replace(
+		entity_pattern,
+		/**
+		 * @param {any} match
+		 * @param {keyof typeof entities} entity
+		 */ (match, entity) => {
+			let code;
+
+			// Handle named entities
+			if (entity[0] !== '#') {
+				code = entities[entity];
+			} else if (entity[1] === 'x') {
+				code = parseInt(entity.substring(2), 16);
+			} else {
+				code = parseInt(entity.substring(1), 10);
+			}
+
+			if (!code) {
+				return match;
+			}
+
+			return String.fromCodePoint(validate_code(code));
+		}
+	);
+}
+
+const NUL = 0;
+
+// some code points are verboten. If we were inserting HTML, the browser would replace the illegal
+// code points with alternatives in some cases - since we're bypassing that mechanism, we need
+// to replace them ourselves
+//
+// Source: http://en.wikipedia.org/wiki/Character_encodings_in_HTML#Illegal_characters
+
+/** @param {number} code */
+function validate_code(code) {
+	// line feed becomes generic whitespace
+	if (code === 10) {
+		return 32;
+	}
+
+	// ASCII range. (Why someone would use HTML entities for ASCII characters I don't know, but...)
+	if (code < 128) {
+		return code;
+	}
+
+	// code points 128-159 are dealt with leniently by browsers, but they're incorrect. We need
+	// to correct the mistake or we'll end up with missing € signs and so on
+	if (code <= 159) {
+		return windows_1252[code - 128];
+	}
+
+	// basic multilingual plane
+	if (code < 55296) {
+		return code;
+	}
+
+	// UTF-16 surrogate halves
+	if (code <= 57343) {
+		return NUL;
+	}
+
+	// rest of the basic multilingual plane
+	if (code <= 65535) {
+		return code;
+	}
+
+	// supplementary multilingual plane 0x10000 - 0x1ffff
+	if (code >= 65536 && code <= 131071) {
+		return code;
+	}
+
+	// supplementary ideographic plane 0x20000 - 0x2ffff
+	if (code >= 131072 && code <= 196607) {
+		return code;
+	}
+
+	return NUL;
+}

node_modules/svelte/src/compiler/phases/2-analyze/css/css-analyze.js

@@ -0,0 +1,287 @@
+/** @import { ComponentAnalysis } from '../../types.js' */
+/** @import { AST } from '#compiler' */
+/** @import { Visitors } from 'zimmerframe' */
+import { walk } from 'zimmerframe';
+import * as e from '../../../errors.js';
+import { is_keyframes_node } from '../../css.js';
+import { is_global, is_unscoped_pseudo_class } from './utils.js';
+
+/**
+ * @typedef {Visitors<
+ *   AST.CSS.Node,
+ *   {
+ *     keyframes: string[];
+ *     rule: AST.CSS.Rule | null;
+ *   }
+ * >} CssVisitors
+ */
+
+/**
+ * True if is `:global`
+ * @param {AST.CSS.SimpleSelector} simple_selector
+ */
+function is_global_block_selector(simple_selector) {
+	return (
+		simple_selector.type === 'PseudoClassSelector' &&
+		simple_selector.name === 'global' &&
+		simple_selector.args === null
+	);
+}
+
+/**
+ *
+ * @param {Array<AST.CSS.Node>} path
+ */
+function is_in_global_block(path) {
+	return path.some((node) => node.type === 'Rule' && node.metadata.is_global_block);
+}
+
+/** @type {CssVisitors} */
+const css_visitors = {
+	Atrule(node, context) {
+		if (is_keyframes_node(node)) {
+			if (!node.prelude.startsWith('-global-') && !is_in_global_block(context.path)) {
+				context.state.keyframes.push(node.prelude);
+			}
+		}
+
+		context.next();
+	},
+	ComplexSelector(node, context) {
+		context.next(); // analyse relevant selectors first
+
+		{
+			const global = node.children.find(is_global);
+
+			if (global) {
+				const idx = node.children.indexOf(global);
+
+				if (global.selectors[0].args !== null && idx !== 0 && idx !== node.children.length - 1) {
+					// ensure `:global(...)` is not used in the middle of a selector (but multiple `global(...)` in sequence are ok)
+					for (let i = idx + 1; i < node.children.length; i++) {
+						if (!is_global(node.children[i])) {
+							e.css_global_invalid_placement(global.selectors[0]);
+						}
+					}
+				}
+			}
+		}
+
+		// ensure `:global(...)` do not lead to invalid css after `:global()` is removed
+		for (const relative_selector of node.children) {
+			for (let i = 0; i < relative_selector.selectors.length; i++) {
+				const selector = relative_selector.selectors[i];
+
+				if (selector.type === 'PseudoClassSelector' && selector.name === 'global') {
+					const child = selector.args?.children[0].children[0];
+					// ensure `:global(element)` to be at the first position in a compound selector
+					if (child?.selectors[0].type === 'TypeSelector' && i !== 0) {
+						e.css_global_invalid_selector_list(selector);
+					}
+
+					// ensure `:global(.class)` is not followed by a type selector, eg: `:global(.class)element`
+					if (relative_selector.selectors[i + 1]?.type === 'TypeSelector') {
+						e.css_type_selector_invalid_placement(relative_selector.selectors[i + 1]);
+					}
+
+					// ensure `:global(...)`contains a single selector
+					// (standalone :global() with multiple selectors is OK)
+					if (
+						selector.args !== null &&
+						selector.args.children.length > 1 &&
+						(node.children.length > 1 || relative_selector.selectors.length > 1)
+					) {
+						e.css_global_invalid_selector(selector);
+					}
+				}
+			}
+		}
+
+		node.metadata.rule = context.state.rule;
+
+		node.metadata.used ||= node.children.every(
+			({ metadata }) => metadata.is_global || metadata.is_global_like
+		);
+
+		if (
+			node.metadata.rule?.metadata.parent_rule &&
+			node.children[0]?.selectors[0]?.type === 'NestingSelector'
+		) {
+			const first = node.children[0]?.selectors[1];
+			const no_nesting_scope =
+				first?.type !== 'PseudoClassSelector' || is_unscoped_pseudo_class(first);
+			const parent_is_global = node.metadata.rule.metadata.parent_rule.prelude.children.some(
+				(child) => child.children.length === 1 && child.children[0].metadata.is_global
+			);
+			// mark `&:hover` in `:global(.foo) { &:hover { color: green }}` as used
+			if (no_nesting_scope && parent_is_global) {
+				node.metadata.used = true;
+			}
+		}
+	},
+	RelativeSelector(node, context) {
+		const parent = /** @type {AST.CSS.ComplexSelector} */ (context.path.at(-1));
+
+		if (
+			node.combinator != null &&
+			!context.state.rule?.metadata.parent_rule &&
+			parent.children[0] === node &&
+			context.path.at(-3)?.type !== 'PseudoClassSelector'
+		) {
+			e.css_selector_invalid(node.combinator);
+		}
+
+		node.metadata.is_global = node.selectors.length >= 1 && is_global(node);
+
+		if (node.selectors.length === 1) {
+			const first = node.selectors[0];
+			node.metadata.is_global_like ||=
+				(first.type === 'PseudoClassSelector' && first.name === 'host') ||
+				(first.type === 'PseudoElementSelector' &&
+					[
+						'view-transition',
+						'view-transition-group',
+						'view-transition-old',
+						'view-transition-new',
+						'view-transition-image-pair'
+					].includes(first.name));
+		}
+
+		node.metadata.is_global_like ||=
+			node.selectors.some(
+				(child) => child.type === 'PseudoClassSelector' && child.name === 'root'
+			) &&
+			// :root.y:has(.x) is not a global selector because while .y is unscoped, .x inside `:has(...)` should be scoped
+			!node.selectors.some((child) => child.type === 'PseudoClassSelector' && child.name === 'has');
+
+		if (node.metadata.is_global_like || node.metadata.is_global) {
+			// So that nested selectors like `:root:not(.x)` are not marked as unused
+			for (const child of node.selectors) {
+				walk(/** @type {AST.CSS.Node} */ (child), null, {
+					ComplexSelector(node, context) {
+						node.metadata.used = true;
+						context.next();
+					}
+				});
+			}
+		}
+
+		context.next();
+	},
+	Rule(node, context) {
+		node.metadata.parent_rule = context.state.rule;
+
+		node.metadata.is_global_block = node.prelude.children.some((selector) => {
+			let is_global_block = false;
+
+			for (const child of selector.children) {
+				const idx = child.selectors.findIndex(is_global_block_selector);
+
+				if (is_global_block) {
+					// All selectors after :global are unscoped
+					child.metadata.is_global_like = true;
+				}
+
+				if (idx !== -1) {
+					is_global_block = true;
+					for (let i = idx + 1; i < child.selectors.length; i++) {
+						walk(/** @type {AST.CSS.Node} */ (child.selectors[i]), null, {
+							ComplexSelector(node) {
+								node.metadata.used = true;
+							}
+						});
+					}
+				}
+			}
+
+			return is_global_block;
+		});
+
+		if (node.metadata.is_global_block) {
+			if (node.prelude.children.length > 1) {
+				e.css_global_block_invalid_list(node.prelude);
+			}
+
+			const complex_selector = node.prelude.children[0];
+			const global_selector = complex_selector.children.find((r, selector_idx) => {
+				const idx = r.selectors.findIndex(is_global_block_selector);
+				if (idx === 0) {
+					if (r.selectors.length > 1 && selector_idx === 0 && node.metadata.parent_rule === null) {
+						e.css_global_block_invalid_modifier_start(r.selectors[1]);
+					}
+					return true;
+				} else if (idx !== -1) {
+					e.css_global_block_invalid_modifier(r.selectors[idx]);
+				}
+			});
+
+			if (!global_selector) {
+				throw new Error('Internal error: global block without :global selector');
+			}
+
+			if (global_selector.combinator && global_selector.combinator.name !== ' ') {
+				e.css_global_block_invalid_combinator(global_selector, global_selector.combinator.name);
+			}
+
+			const declaration = node.block.children.find((child) => child.type === 'Declaration');
+
+			if (
+				declaration &&
+				// :global { color: red; } is invalid, but foo :global { color: red; } is valid
+				node.prelude.children.length === 1 &&
+				node.prelude.children[0].children.length === 1 &&
+				node.prelude.children[0].children[0].selectors.length === 1
+			) {
+				e.css_global_block_invalid_declaration(declaration);
+			}
+		}
+
+		context.next({
+			...context.state,
+			rule: node
+		});
+
+		node.metadata.has_local_selectors = node.prelude.children.some((selector) => {
+			return selector.children.some(
+				({ metadata }) => !metadata.is_global && !metadata.is_global_like
+			);
+		});
+	},
+	NestingSelector(node, context) {
+		const rule = /** @type {AST.CSS.Rule} */ (context.state.rule);
+		const parent_rule = rule.metadata.parent_rule;
+
+		if (!parent_rule) {
+			// https://developer.mozilla.org/en-US/docs/Web/CSS/Nesting_selector#using_outside_nested_rule
+			const children = rule.prelude.children;
+			const selectors = children[0].children[0].selectors;
+			if (
+				children.length > 1 ||
+				selectors.length > 1 ||
+				selectors[0].type !== 'PseudoClassSelector' ||
+				selectors[0].name !== 'global' ||
+				selectors[0].args?.children[0]?.children[0].selectors[0] !== node
+			) {
+				e.css_nesting_selector_invalid_placement(node);
+			}
+		} else if (
+			// :global { &.foo { ... } } is invalid
+			parent_rule.metadata.is_global_block &&
+			!parent_rule.metadata.parent_rule &&
+			parent_rule.prelude.children[0].children.length === 1 &&
+			parent_rule.prelude.children[0].children[0].selectors.length === 1
+		) {
+			e.css_global_block_invalid_modifier_start(node);
+		}
+
+		context.next();
+	}
+};
+
+/**
+ * @param {AST.CSS.StyleSheet} stylesheet
+ * @param {ComponentAnalysis} analysis
+ */
+export function analyze_css(stylesheet, analysis) {
+	walk(stylesheet, { keyframes: analysis.css.keyframes, rule: null }, css_visitors);
+}

node_modules/svelte/src/compiler/phases/2-analyze/css/css-warn.js

@@ -0,0 +1,47 @@
+/** @import { Visitors } from 'zimmerframe' */
+/** @import { AST } from '#compiler' */
+import { walk } from 'zimmerframe';
+import * as w from '../../../warnings.js';
+import { is_keyframes_node } from '../../css.js';
+
+/**
+ * @param {AST.CSS.StyleSheet} stylesheet
+ */
+export function warn_unused(stylesheet) {
+	walk(stylesheet, { stylesheet }, visitors);
+}
+
+/** @type {Visitors<AST.CSS.Node, { stylesheet: AST.CSS.StyleSheet }>} */
+const visitors = {
+	Atrule(node, context) {
+		if (!is_keyframes_node(node)) {
+			context.next();
+		}
+	},
+	PseudoClassSelector(node, context) {
+		if (node.name === 'is' || node.name === 'where') {
+			context.next();
+		}
+	},
+	ComplexSelector(node, context) {
+		if (
+			!node.metadata.used &&
+			// prevent double-marking of `.unused:is(.unused)`
+			(context.path.at(-2)?.type !== 'PseudoClassSelector' ||
+				/** @type {AST.CSS.ComplexSelector} */ (context.path.at(-4))?.metadata.used)
+		) {
+			const content = context.state.stylesheet.content;
+			const text = content.styles.substring(node.start - content.start, node.end - content.start);
+			w.css_unused_selector(node, text);
+		}
+
+		context.next();
+	},
+	Rule(node, context) {
+		if (node.metadata.is_global_block) {
+			context.visit(node.prelude);
+		} else {
+			context.next();
+		}
+	}
+};

node_modules/svelte/src/compiler/phases/2-analyze/css/utils.js

@@ -0,0 +1,177 @@
+/** @import { AST } from '#compiler' */
+/** @import { Node } from 'estree' */
+const UNKNOWN = {};
+
+/**
+ * @param {Node} node
+ * @param {boolean} is_class
+ * @param {Set<any>} set
+ * @param {boolean} is_nested
+ */
+function gather_possible_values(node, is_class, set, is_nested = false) {
+	if (set.has(UNKNOWN)) {
+		// no point traversing any further
+		return;
+	}
+
+	if (node.type === 'Literal') {
+		set.add(String(node.value));
+	} else if (node.type === 'ConditionalExpression') {
+		gather_possible_values(node.consequent, is_class, set, is_nested);
+		gather_possible_values(node.alternate, is_class, set, is_nested);
+	} else if (node.type === 'LogicalExpression') {
+		if (node.operator === '&&') {
+			// && is a special case, because the only way the left
+			// hand value can be included is if it's falsy. this is
+			// a bit of extra work but it's worth it because
+			// `class={[condition && 'blah']}` is common,
+			// and we don't want to deopt on `condition`
+			const left = new Set();
+			gather_possible_values(node.left, is_class, left, is_nested);
+
+			if (left.has(UNKNOWN)) {
+				// add all non-nullish falsy values, unless this is a `class` attribute that
+				// will be processed by cslx, in which case falsy values are removed, unless
+				// they're not inside an array/object (TODO 6.0 remove that last part)
+				if (!is_class || !is_nested) {
+					set.add('');
+					set.add(false);
+					set.add(NaN);
+					set.add(0); // -0 and 0n are also falsy, but stringify to '0'
+				}
+			} else {
+				for (const value of left) {
+					if (!value && value != undefined && (!is_class || !is_nested)) {
+						set.add(value);
+					}
+				}
+			}
+
+			gather_possible_values(node.right, is_class, set, is_nested);
+		} else {
+			gather_possible_values(node.left, is_class, set, is_nested);
+			gather_possible_values(node.right, is_class, set, is_nested);
+		}
+	} else if (is_class && node.type === 'ArrayExpression') {
+		for (const entry of node.elements) {
+			if (entry) {
+				gather_possible_values(entry, is_class, set, true);
+			}
+		}
+	} else if (is_class && node.type === 'ObjectExpression') {
+		for (const property of node.properties) {
+			if (
+				property.type === 'Property' &&
+				!property.computed &&
+				(property.key.type === 'Identifier' || property.key.type === 'Literal')
+			) {
+				set.add(
+					property.key.type === 'Identifier' ? property.key.name : String(property.key.value)
+				);
+			} else {
+				set.add(UNKNOWN);
+			}
+		}
+	} else {
+		set.add(UNKNOWN);
+	}
+}
+
+/**
+ * @param {AST.Text | AST.ExpressionTag} chunk
+ * @param {boolean} is_class
+ * @returns {string[] | null}
+ */
+export function get_possible_values(chunk, is_class) {
+	const values = new Set();
+
+	if (chunk.type === 'Text') {
+		values.add(chunk.data);
+	} else {
+		gather_possible_values(chunk.expression, is_class, values);
+	}
+
+	if (values.has(UNKNOWN)) return null;
+	return [...values].map((value) => String(value));
+}
+
+/**
+ * Returns all parent rules; root is last
+ * @param {AST.CSS.Rule | null} rule
+ */
+export function get_parent_rules(rule) {
+	const rules = [];
+
+	while (rule) {
+		rules.push(rule);
+		rule = rule.metadata.parent_rule;
+	}
+
+	return rules;
+}
+
+/**
+ * True if is `:global(...)` or `:global` and no pseudo class that is scoped.
+ * @param {AST.CSS.RelativeSelector} relative_selector
+ * @returns {relative_selector is AST.CSS.RelativeSelector & { selectors: [AST.CSS.PseudoClassSelector, ...Array<AST.CSS.PseudoClassSelector | AST.CSS.PseudoElementSelector>] }}
+ */
+export function is_global(relative_selector) {
+	const first = relative_selector.selectors[0];
+
+	return (
+		first.type === 'PseudoClassSelector' &&
+		first.name === 'global' &&
+		(first.args === null ||
+			// Only these two selector types keep the whole selector global, because e.g.
+			// :global(button).x means that the selector is still scoped because of the .x
+			relative_selector.selectors.every(
+				(selector) =>
+					is_unscoped_pseudo_class(selector) || selector.type === 'PseudoElementSelector'
+			))
+	);
+}
+
+/**
+ * `true` if is a pseudo class that cannot be or is not scoped
+ * @param {AST.CSS.SimpleSelector} selector
+ */
+export function is_unscoped_pseudo_class(selector) {
+	return (
+		selector.type === 'PseudoClassSelector' &&
+		// These make the selector scoped
+		((selector.name !== 'has' &&
+			selector.name !== 'is' &&
+			selector.name !== 'where' &&
+			// Not is special because we want to scope as specific as possible, but because :not
+			// inverses the result, we want to leave the unscoped, too. The exception is more than
+			// one selector in the :not (.e.g :not(.x .y)), then .x and .y should be scoped
+			(selector.name !== 'not' ||
+				selector.args === null ||
+				selector.args.children.every((c) => c.children.length === 1))) ||
+			// selectors with has/is/where/not can also be global if all their children are global
+			selector.args === null ||
+			selector.args.children.every((c) => c.children.every((r) => is_global(r))))
+	);
+}
+
+/**
+ * True if is `:global(...)` or `:global`, irrespective of whether or not there are any pseudo classes that are scoped.
+ * Difference to `is_global`: `:global(x):has(y)` is `true` for `is_outer_global` but `false` for `is_global`.
+ * @param {AST.CSS.RelativeSelector} relative_selector
+ * @returns {relative_selector is AST.CSS.RelativeSelector & { selectors: [AST.CSS.PseudoClassSelector, ...Array<AST.CSS.PseudoClassSelector | AST.CSS.PseudoElementSelector>] }}
+ */
+export function is_outer_global(relative_selector) {
+	const first = relative_selector.selectors[0];
+
+	return (
+		first.type === 'PseudoClassSelector' &&
+		first.name === 'global' &&
+		(first.args === null ||
+			// Only these two selector types can keep the whole selector global, because e.g.
+			// :global(button).x means that the selector is still scoped because of the .x
+			relative_selector.selectors.every(
+				(selector) =>
+					selector.type === 'PseudoClassSelector' || selector.type === 'PseudoElementSelector'
+			))
+	);
+}

node_modules/svelte/src/compiler/phases/2-analyze/index.js

@@ -0,0 +1,890 @@
+/** @import { Expression, Node, Program } from 'estree' */
+/** @import { Binding, AST, ValidatedCompileOptions, ValidatedModuleCompileOptions } from '#compiler' */
+/** @import { AnalysisState, Visitors } from './types' */
+/** @import { Analysis, ComponentAnalysis, Js, ReactiveStatement, Template } from '../types' */
+import { walk } from 'zimmerframe';
+import * as e from '../../errors.js';
+import * as w from '../../warnings.js';
+import { extract_identifiers, is_text_attribute } from '../../utils/ast.js';
+import * as b from '../../utils/builders.js';
+import { Scope, ScopeRoot, create_scopes, get_rune, set_scope } from '../scope.js';
+import check_graph_for_cycles from './utils/check_graph_for_cycles.js';
+import { create_attribute, is_custom_element_node } from '../nodes.js';
+import { analyze_css } from './css/css-analyze.js';
+import { prune } from './css/css-prune.js';
+import { hash, is_rune } from '../../../utils.js';
+import { warn_unused } from './css/css-warn.js';
+import { extract_svelte_ignore } from '../../utils/extract_svelte_ignore.js';
+import { ignore_map, ignore_stack, pop_ignore, push_ignore } from '../../state.js';
+import { ArrowFunctionExpression } from './visitors/ArrowFunctionExpression.js';
+import { AssignmentExpression } from './visitors/AssignmentExpression.js';
+import { Attribute } from './visitors/Attribute.js';
+import { AwaitBlock } from './visitors/AwaitBlock.js';
+import { BindDirective } from './visitors/BindDirective.js';
+import { CallExpression } from './visitors/CallExpression.js';
+import { ClassBody } from './visitors/ClassBody.js';
+import { ClassDeclaration } from './visitors/ClassDeclaration.js';
+import { ClassDirective } from './visitors/ClassDirective.js';
+import { Component } from './visitors/Component.js';
+import { ConstTag } from './visitors/ConstTag.js';
+import { DebugTag } from './visitors/DebugTag.js';
+import { EachBlock } from './visitors/EachBlock.js';
+import { ExportDefaultDeclaration } from './visitors/ExportDefaultDeclaration.js';
+import { ExportNamedDeclaration } from './visitors/ExportNamedDeclaration.js';
+import { ExportSpecifier } from './visitors/ExportSpecifier.js';
+import { ExpressionStatement } from './visitors/ExpressionStatement.js';
+import { ExpressionTag } from './visitors/ExpressionTag.js';
+import { FunctionDeclaration } from './visitors/FunctionDeclaration.js';
+import { FunctionExpression } from './visitors/FunctionExpression.js';
+import { HtmlTag } from './visitors/HtmlTag.js';
+import { Identifier } from './visitors/Identifier.js';
+import { IfBlock } from './visitors/IfBlock.js';
+import { ImportDeclaration } from './visitors/ImportDeclaration.js';
+import { KeyBlock } from './visitors/KeyBlock.js';
+import { LabeledStatement } from './visitors/LabeledStatement.js';
+import { LetDirective } from './visitors/LetDirective.js';
+import { MemberExpression } from './visitors/MemberExpression.js';
+import { NewExpression } from './visitors/NewExpression.js';
+import { OnDirective } from './visitors/OnDirective.js';
+import { RegularElement } from './visitors/RegularElement.js';
+import { RenderTag } from './visitors/RenderTag.js';
+import { SlotElement } from './visitors/SlotElement.js';
+import { SnippetBlock } from './visitors/SnippetBlock.js';
+import { SpreadAttribute } from './visitors/SpreadAttribute.js';
+import { SpreadElement } from './visitors/SpreadElement.js';
+import { StyleDirective } from './visitors/StyleDirective.js';
+import { SvelteBody } from './visitors/SvelteBody.js';
+import { SvelteComponent } from './visitors/SvelteComponent.js';
+import { SvelteDocument } from './visitors/SvelteDocument.js';
+import { SvelteElement } from './visitors/SvelteElement.js';
+import { SvelteFragment } from './visitors/SvelteFragment.js';
+import { SvelteHead } from './visitors/SvelteHead.js';
+import { SvelteSelf } from './visitors/SvelteSelf.js';
+import { SvelteWindow } from './visitors/SvelteWindow.js';
+import { SvelteBoundary } from './visitors/SvelteBoundary.js';
+import { TaggedTemplateExpression } from './visitors/TaggedTemplateExpression.js';
+import { Text } from './visitors/Text.js';
+import { TitleElement } from './visitors/TitleElement.js';
+import { TransitionDirective } from './visitors/TransitionDirective.js';
+import { UpdateExpression } from './visitors/UpdateExpression.js';
+import { UseDirective } from './visitors/UseDirective.js';
+import { VariableDeclarator } from './visitors/VariableDeclarator.js';
+import is_reference from 'is-reference';
+import { mark_subtree_dynamic } from './visitors/shared/fragment.js';
+
+/**
+ * @type {Visitors}
+ */
+const visitors = {
+	_(node, { state, next, path }) {
+		const parent = path.at(-1);
+
+		/** @type {string[]} */
+		const ignores = [];
+
+		if (parent?.type === 'Fragment' && node.type !== 'Comment' && node.type !== 'Text') {
+			const idx = parent.nodes.indexOf(/** @type {any} */ (node));
+
+			for (let i = idx - 1; i >= 0; i--) {
+				const prev = parent.nodes[i];
+
+				if (prev.type === 'Comment') {
+					ignores.push(
+						...extract_svelte_ignore(
+							prev.start + 4 /* '<!--'.length */,
+							prev.data,
+							state.analysis.runes
+						)
+					);
+				} else if (prev.type !== 'Text') {
+					break;
+				}
+			}
+		} else {
+			const comments = /** @type {any} */ (node).leadingComments;
+
+			if (comments) {
+				for (const comment of comments) {
+					ignores.push(
+						...extract_svelte_ignore(
+							comment.start + 2 /* '//'.length */,
+							comment.value,
+							state.analysis.runes
+						)
+					);
+				}
+			}
+		}
+
+		if (ignores.length > 0) {
+			push_ignore(ignores);
+		}
+
+		ignore_map.set(node, structuredClone(ignore_stack));
+
+		const scope = state.scopes.get(node);
+		next(scope !== undefined && scope !== state.scope ? { ...state, scope } : state);
+
+		if (ignores.length > 0) {
+			pop_ignore();
+		}
+	},
+	ArrowFunctionExpression,
+	AssignmentExpression,
+	Attribute,
+	AwaitBlock,
+	BindDirective,
+	CallExpression,
+	ClassBody,
+	ClassDeclaration,
+	ClassDirective,
+	Component,
+	ConstTag,
+	DebugTag,
+	EachBlock,
+	ExportDefaultDeclaration,
+	ExportNamedDeclaration,
+	ExportSpecifier,
+	ExpressionStatement,
+	ExpressionTag,
+	FunctionDeclaration,
+	FunctionExpression,
+	HtmlTag,
+	Identifier,
+	IfBlock,
+	ImportDeclaration,
+	KeyBlock,
+	LabeledStatement,
+	LetDirective,
+	MemberExpression,
+	NewExpression,
+	OnDirective,
+	RegularElement,
+	RenderTag,
+	SlotElement,
+	SnippetBlock,
+	SpreadAttribute,
+	SpreadElement,
+	StyleDirective,
+	SvelteBody,
+	SvelteComponent,
+	SvelteDocument,
+	SvelteElement,
+	SvelteFragment,
+	SvelteHead,
+	SvelteSelf,
+	SvelteWindow,
+	SvelteBoundary,
+	TaggedTemplateExpression,
+	Text,
+	TransitionDirective,
+	TitleElement,
+	UpdateExpression,
+	UseDirective,
+	VariableDeclarator
+};
+
+/**
+ * @param {AST.Script | null} script
+ * @param {ScopeRoot} root
+ * @param {boolean} allow_reactive_declarations
+ * @param {Scope | null} parent
+ * @returns {Js}
+ */
+function js(script, root, allow_reactive_declarations, parent) {
+	/** @type {Program} */
+	const ast = script?.content ?? {
+		type: 'Program',
+		sourceType: 'module',
+		start: -1,
+		end: -1,
+		body: []
+	};
+
+	const { scope, scopes } = create_scopes(ast, root, allow_reactive_declarations, parent);
+
+	return { ast, scope, scopes };
+}
+
+/**
+ * @param {string} filename
+ */
+function get_component_name(filename) {
+	const parts = filename.split(/[/\\]/);
+	const basename = /** @type {string} */ (parts.pop());
+	const last_dir = /** @type {string} */ (parts.at(-1));
+	let name = basename.replace('.svelte', '');
+	if (name === 'index' && last_dir && last_dir !== 'src') {
+		name = last_dir;
+	}
+	return name[0].toUpperCase() + name.slice(1);
+}
+
+const RESERVED = ['$$props', '$$restProps', '$$slots'];
+
+/**
+ * @param {Program} ast
+ * @param {ValidatedModuleCompileOptions} options
+ * @returns {Analysis}
+ */
+export function analyze_module(ast, options) {
+	const { scope, scopes } = create_scopes(ast, new ScopeRoot(), false, null);
+
+	for (const [name, references] of scope.references) {
+		if (name[0] !== '$' || RESERVED.includes(name)) continue;
+		if (name === '$' || name[1] === '$') {
+			e.global_reference_invalid(references[0].node, name);
+		}
+
+		const binding = scope.get(name.slice(1));
+
+		if (binding !== null && !is_rune(name)) {
+			e.store_invalid_subscription_module(references[0].node);
+		}
+	}
+
+	/** @type {Analysis} */
+	const analysis = {
+		module: { ast, scope, scopes },
+		name: options.filename,
+		accessors: false,
+		runes: true,
+		immutable: true,
+		tracing: false
+	};
+
+	walk(
+		/** @type {Node} */ (ast),
+		{
+			scope,
+			scopes,
+			// @ts-expect-error TODO
+			analysis
+		},
+		visitors
+	);
+
+	return analysis;
+}
+
+/**
+ * @param {AST.Root} root
+ * @param {string} source
+ * @param {ValidatedCompileOptions} options
+ * @returns {ComponentAnalysis}
+ */
+export function analyze_component(root, source, options) {
+	const scope_root = new ScopeRoot();
+
+	const module = js(root.module, scope_root, false, null);
+	const instance = js(root.instance, scope_root, true, module.scope);
+
+	const { scope, scopes } = create_scopes(root.fragment, scope_root, false, instance.scope);
+
+	/** @type {Template} */
+	const template = { ast: root.fragment, scope, scopes };
+
+	let synthetic_stores_legacy_check = [];
+
+	// create synthetic bindings for store subscriptions
+	for (const [name, references] of module.scope.references) {
+		if (name[0] !== '$' || RESERVED.includes(name)) continue;
+		if (name === '$' || name[1] === '$') {
+			e.global_reference_invalid(references[0].node, name);
+		}
+
+		const store_name = name.slice(1);
+		const declaration = instance.scope.get(store_name);
+		const init = /** @type {Node | undefined} */ (declaration?.initial);
+
+		// If we're not in legacy mode through the compiler option, assume the user
+		// is referencing a rune and not a global store.
+		if (
+			options.runes === false ||
+			!is_rune(name) ||
+			(declaration !== null &&
+				// const state = $state(0) is valid
+				(get_rune(init, instance.scope) === null ||
+					// rune-line names received as props are valid too (but we have to protect against $props as store)
+					(store_name !== 'props' && get_rune(init, instance.scope) === '$props')) &&
+				// allow `import { derived } from 'svelte/store'` in the same file as `const x = $derived(..)` because one is not a subscription to the other
+				!(
+					name === '$derived' &&
+					declaration.initial?.type === 'ImportDeclaration' &&
+					declaration.initial.source.value === 'svelte/store'
+				))
+		) {
+			let is_nested_store_subscription_node = undefined;
+			search: for (const reference of references) {
+				for (let i = reference.path.length - 1; i >= 0; i--) {
+					const scope =
+						scopes.get(reference.path[i]) ||
+						module.scopes.get(reference.path[i]) ||
+						instance.scopes.get(reference.path[i]);
+					if (scope) {
+						const owner = scope?.owner(store_name);
+						if (!!owner && owner !== module.scope && owner !== instance.scope) {
+							is_nested_store_subscription_node = reference.node;
+							break search;
+						}
+						break;
+					}
+				}
+			}
+
+			if (is_nested_store_subscription_node) {
+				e.store_invalid_scoped_subscription(is_nested_store_subscription_node);
+			}
+
+			if (options.runes !== false) {
+				if (declaration === null && /[a-z]/.test(store_name[0])) {
+					e.global_reference_invalid(references[0].node, name);
+				} else if (declaration !== null && is_rune(name)) {
+					for (const { node, path } of references) {
+						if (path.at(-1)?.type === 'CallExpression') {
+							w.store_rune_conflict(node, store_name);
+						}
+					}
+				}
+			}
+
+			if (module.ast) {
+				for (const { node, path } of references) {
+					// if the reference is inside module, error. this is a bit hacky but it works
+					if (
+						/** @type {number} */ (node.start) > /** @type {number} */ (module.ast.start) &&
+						/** @type {number} */ (node.end) < /** @type {number} */ (module.ast.end) &&
+						// const state = $state(0) is valid
+						get_rune(/** @type {Node} */ (path.at(-1)), module.scope) === null
+					) {
+						e.store_invalid_subscription(node);
+					}
+				}
+			}
+
+			// we push to the array because at this moment in time we can't be sure if we are in legacy
+			// mode yet because we are still changing the module scope
+			synthetic_stores_legacy_check.push(() => {
+				// if we are creating a synthetic binding for a let declaration we should also declare
+				// the declaration as state in case it's reassigned and we are not in runes mode (the function will
+				// not be called if we are not in runes mode, that's why there's no !runes check here)
+				if (
+					declaration !== null &&
+					declaration.kind === 'normal' &&
+					declaration.declaration_kind === 'let' &&
+					declaration.reassigned
+				) {
+					declaration.kind = 'state';
+				}
+			});
+
+			const binding = instance.scope.declare(b.id(name), 'store_sub', 'synthetic');
+			binding.references = references;
+			instance.scope.references.set(name, references);
+			module.scope.references.delete(name);
+		}
+	}
+
+	const component_name = get_component_name(options.filename);
+
+	const runes = options.runes ?? Array.from(module.scope.references.keys()).some(is_rune);
+
+	if (!runes) {
+		for (let check of synthetic_stores_legacy_check) {
+			check();
+		}
+	}
+
+	if (runes && root.module) {
+		const context = root.module.attributes.find((attribute) => attribute.name === 'context');
+		if (context) {
+			w.script_context_deprecated(context);
+		}
+	}
+
+	// TODO remove all the ?? stuff, we don't need it now that we're validating the config
+	/** @type {ComponentAnalysis} */
+	const analysis = {
+		name: module.scope.generate(options.name ?? component_name),
+		root: scope_root,
+		module,
+		instance,
+		template,
+		elements: [],
+		runes,
+		tracing: false,
+		immutable: runes || options.immutable,
+		exports: [],
+		uses_props: false,
+		uses_rest_props: false,
+		uses_slots: false,
+		uses_component_bindings: false,
+		uses_render_tags: false,
+		needs_context: false,
+		needs_props: false,
+		event_directive_node: null,
+		uses_event_attributes: false,
+		custom_element: options.customElementOptions ?? options.customElement,
+		inject_styles: options.css === 'injected' || options.customElement,
+		accessors: options.customElement
+			? true
+			: (runes ? false : !!options.accessors) ||
+				// because $set method needs accessors
+				options.compatibility?.componentApi === 4,
+		reactive_statements: new Map(),
+		binding_groups: new Map(),
+		slot_names: new Map(),
+		css: {
+			ast: root.css,
+			hash: root.css
+				? options.cssHash({
+						css: root.css.content.styles,
+						filename: options.filename,
+						name: component_name,
+						hash
+					})
+				: '',
+			keyframes: []
+		},
+		source,
+		undefined_exports: new Map(),
+		snippet_renderers: new Map(),
+		snippets: new Set()
+	};
+
+	if (!runes) {
+		// every exported `let` or `var` declaration becomes a prop, everything else becomes an export
+		for (const node of instance.ast.body) {
+			if (node.type !== 'ExportNamedDeclaration') continue;
+
+			analysis.needs_props = true;
+
+			if (node.declaration) {
+				if (
+					node.declaration.type === 'FunctionDeclaration' ||
+					node.declaration.type === 'ClassDeclaration'
+				) {
+					analysis.exports.push({
+						name: /** @type {import('estree').Identifier} */ (node.declaration.id).name,
+						alias: null
+					});
+				} else if (node.declaration.type === 'VariableDeclaration') {
+					if (node.declaration.kind === 'const') {
+						for (const declarator of node.declaration.declarations) {
+							for (const node of extract_identifiers(declarator.id)) {
+								analysis.exports.push({ name: node.name, alias: null });
+							}
+						}
+					} else {
+						for (const declarator of node.declaration.declarations) {
+							for (const id of extract_identifiers(declarator.id)) {
+								const binding = /** @type {Binding} */ (instance.scope.get(id.name));
+								binding.kind = 'bindable_prop';
+							}
+						}
+					}
+				}
+			} else {
+				for (const specifier of node.specifiers) {
+					if (specifier.local.type !== 'Identifier' || specifier.exported.type !== 'Identifier') {
+						continue;
+					}
+
+					const binding = instance.scope.get(specifier.local.name);
+
+					if (
+						binding &&
+						(binding.declaration_kind === 'var' || binding.declaration_kind === 'let')
+					) {
+						binding.kind = 'bindable_prop';
+
+						if (specifier.exported.name !== specifier.local.name) {
+							binding.prop_alias = specifier.exported.name;
+						}
+					} else {
+						analysis.exports.push({ name: specifier.local.name, alias: specifier.exported.name });
+					}
+				}
+			}
+		}
+
+		// if reassigned/mutated bindings are referenced in `$:` blocks
+		// or the template, turn them into state
+		for (const binding of instance.scope.declarations.values()) {
+			if (binding.kind !== 'normal') continue;
+
+			for (const { node, path } of binding.references) {
+				if (node === binding.node) continue;
+
+				if (binding.updated) {
+					if (
+						path[path.length - 1].type === 'StyleDirective' ||
+						path.some((node) => node.type === 'Fragment') ||
+						(path[1].type === 'LabeledStatement' && path[1].label.name === '$')
+					) {
+						binding.kind = 'state';
+					}
+				}
+			}
+		}
+
+		// more legacy nonsense: if an `each` binding is reassigned/mutated,
+		// treat the expression as being mutated as well
+		walk(/** @type {AST.SvelteNode} */ (template.ast), null, {
+			EachBlock(node) {
+				const scope = /** @type {Scope} */ (template.scopes.get(node));
+
+				for (const binding of scope.declarations.values()) {
+					if (binding.updated) {
+						const state = { scope: /** @type {Scope} */ (scope.parent), scopes: template.scopes };
+
+						walk(node.expression, state, {
+							// @ts-expect-error
+							_: set_scope,
+							Identifier(node, context) {
+								const parent = /** @type {Expression} */ (context.path.at(-1));
+
+								if (is_reference(node, parent)) {
+									const binding = context.state.scope.get(node.name);
+
+									if (
+										binding &&
+										binding.kind === 'normal' &&
+										binding.declaration_kind !== 'import'
+									) {
+										binding.kind = 'state';
+										binding.mutated = binding.updated = true;
+									}
+								}
+							}
+						});
+
+						break;
+					}
+				}
+			}
+		});
+	}
+
+	if (root.options) {
+		for (const attribute of root.options.attributes) {
+			if (attribute.name === 'accessors' && analysis.runes) {
+				w.options_deprecated_accessors(attribute);
+			}
+
+			if (attribute.name === 'customElement' && !options.customElement) {
+				w.options_missing_custom_element(attribute);
+			}
+
+			if (attribute.name === 'immutable' && analysis.runes) {
+				w.options_deprecated_immutable(attribute);
+			}
+		}
+	}
+
+	if (analysis.runes) {
+		const props_refs = module.scope.references.get('$$props');
+		if (props_refs) {
+			e.legacy_props_invalid(props_refs[0].node);
+		}
+
+		const rest_props_refs = module.scope.references.get('$$restProps');
+		if (rest_props_refs) {
+			e.legacy_rest_props_invalid(rest_props_refs[0].node);
+		}
+
+		for (const { ast, scope, scopes } of [module, instance, template]) {
+			/** @type {AnalysisState} */
+			const state = {
+				scope,
+				scopes,
+				analysis,
+				options,
+				ast_type: ast === instance.ast ? 'instance' : ast === template.ast ? 'template' : 'module',
+				parent_element: null,
+				has_props_rune: false,
+				component_slots: new Set(),
+				expression: null,
+				private_derived_state: [],
+				function_depth: scope.function_depth,
+				instance_scope: instance.scope,
+				reactive_statement: null,
+				reactive_statements: new Map()
+			};
+
+			walk(/** @type {AST.SvelteNode} */ (ast), state, visitors);
+		}
+
+		// warn on any nonstate declarations that are a) reassigned and b) referenced in the template
+		for (const scope of [module.scope, instance.scope]) {
+			outer: for (const [name, binding] of scope.declarations) {
+				if (binding.kind === 'normal' && binding.reassigned) {
+					inner: for (const { path } of binding.references) {
+						if (path[0].type !== 'Fragment') continue;
+						for (let i = 1; i < path.length; i += 1) {
+							const type = path[i].type;
+							if (
+								type === 'FunctionDeclaration' ||
+								type === 'FunctionExpression' ||
+								type === 'ArrowFunctionExpression'
+							) {
+								continue inner;
+							}
+							// bind:this doesn't need to be a state reference if it will never change
+							if (
+								type === 'BindDirective' &&
+								/** @type {AST.BindDirective} */ (path[i]).name === 'this'
+							) {
+								for (let j = i - 1; j >= 0; j -= 1) {
+									const type = path[j].type;
+									if (
+										type === 'IfBlock' ||
+										type === 'EachBlock' ||
+										type === 'AwaitBlock' ||
+										type === 'KeyBlock'
+									) {
+										w.non_reactive_update(binding.node, name);
+										continue outer;
+									}
+								}
+								continue inner;
+							}
+						}
+
+						w.non_reactive_update(binding.node, name);
+						continue outer;
+					}
+				}
+			}
+		}
+	} else {
+		instance.scope.declare(b.id('$$props'), 'rest_prop', 'synthetic');
+		instance.scope.declare(b.id('$$restProps'), 'rest_prop', 'synthetic');
+
+		for (const { ast, scope, scopes } of [module, instance, template]) {
+			/** @type {AnalysisState} */
+			const state = {
+				scope,
+				scopes,
+				analysis,
+				options,
+				parent_element: null,
+				has_props_rune: false,
+				ast_type: ast === instance.ast ? 'instance' : ast === template.ast ? 'template' : 'module',
+				instance_scope: instance.scope,
+				reactive_statement: null,
+				reactive_statements: analysis.reactive_statements,
+				component_slots: new Set(),
+				expression: null,
+				private_derived_state: [],
+				function_depth: scope.function_depth
+			};
+
+			walk(/** @type {AST.SvelteNode} */ (ast), state, visitors);
+		}
+
+		for (const [name, binding] of instance.scope.declarations) {
+			if (
+				(binding.kind === 'prop' || binding.kind === 'bindable_prop') &&
+				binding.node.name !== '$$props'
+			) {
+				const references = binding.references.filter(
+					(r) => r.node !== binding.node && r.path.at(-1)?.type !== 'ExportSpecifier'
+				);
+				if (!references.length && !instance.scope.declarations.has(`$${name}`)) {
+					w.export_let_unused(binding.node, name);
+				}
+			}
+		}
+
+		analysis.reactive_statements = order_reactive_statements(analysis.reactive_statements);
+	}
+
+	for (const node of analysis.module.ast.body) {
+		if (node.type === 'ExportNamedDeclaration' && node.specifiers !== null && node.source == null) {
+			for (const specifier of node.specifiers) {
+				if (specifier.local.type !== 'Identifier') continue;
+
+				const binding = analysis.module.scope.get(specifier.local.name);
+				if (!binding) e.export_undefined(specifier, specifier.local.name);
+			}
+		}
+	}
+
+	if (analysis.event_directive_node && analysis.uses_event_attributes) {
+		e.mixed_event_handler_syntaxes(
+			analysis.event_directive_node,
+			analysis.event_directive_node.name
+		);
+	}
+
+	for (const [node, resolved] of analysis.snippet_renderers) {
+		if (!resolved) {
+			node.metadata.snippets = analysis.snippets;
+		}
+
+		for (const snippet of node.metadata.snippets) {
+			snippet.metadata.sites.add(node);
+		}
+	}
+
+	if (
+		analysis.uses_render_tags &&
+		(analysis.uses_slots || (!analysis.custom_element && analysis.slot_names.size > 0))
+	) {
+		const pos = analysis.slot_names.values().next().value ?? analysis.source.indexOf('$$slot');
+		e.slot_snippet_conflict(pos);
+	}
+
+	if (analysis.css.ast) {
+		analyze_css(analysis.css.ast, analysis);
+
+		// mark nodes as scoped/unused/empty etc
+		for (const node of analysis.elements) {
+			prune(analysis.css.ast, node);
+		}
+
+		const { comment } = analysis.css.ast.content;
+		const should_ignore_unused =
+			comment &&
+			extract_svelte_ignore(comment.start, comment.data, analysis.runes).includes(
+				'css_unused_selector'
+			);
+
+		if (!should_ignore_unused) {
+			warn_unused(analysis.css.ast);
+		}
+
+		outer: for (const node of analysis.elements) {
+			if (node.metadata.scoped) {
+				// Dynamic elements in dom mode always use spread for attributes and therefore shouldn't have a class attribute added to them
+				// TODO this happens during the analysis phase, which shouldn't know anything about client vs server
+				if (node.type === 'SvelteElement' && options.generate === 'client') continue;
+
+				/** @type {AST.Attribute | undefined} */
+				let class_attribute = undefined;
+
+				for (const attribute of node.attributes) {
+					if (attribute.type === 'SpreadAttribute') {
+						// The spread method appends the hash to the end of the class attribute on its own
+						continue outer;
+					}
+
+					if (attribute.type !== 'Attribute') continue;
+					if (attribute.name.toLowerCase() !== 'class') continue;
+					// The dynamic class method appends the hash to the end of the class attribute on its own
+					if (attribute.metadata.needs_clsx) continue outer;
+
+					class_attribute = attribute;
+				}
+
+				if (class_attribute && class_attribute.value !== true) {
+					if (is_text_attribute(class_attribute)) {
+						class_attribute.value[0].data += ` ${analysis.css.hash}`;
+					} else {
+						/** @type {AST.Text} */
+						const css_text = {
+							type: 'Text',
+							data: ` ${analysis.css.hash}`,
+							raw: ` ${analysis.css.hash}`,
+							start: -1,
+							end: -1
+						};
+
+						if (Array.isArray(class_attribute.value)) {
+							class_attribute.value.push(css_text);
+						} else {
+							class_attribute.value = [class_attribute.value, css_text];
+						}
+					}
+				} else {
+					node.attributes.push(
+						create_attribute('class', -1, -1, [
+							{
+								type: 'Text',
+								data: analysis.css.hash,
+								raw: analysis.css.hash,
+								start: -1,
+								end: -1
+							}
+						])
+					);
+					if (is_custom_element_node(node) && node.attributes.length === 1) {
+						mark_subtree_dynamic(node.metadata.path);
+					}
+				}
+			}
+		}
+	}
+
+	// TODO
+	// analysis.stylesheet.warn_on_unused_selectors(analysis);
+
+	return analysis;
+}
+
+/**
+ * @param {Map<import('estree').LabeledStatement, ReactiveStatement>} unsorted_reactive_declarations
+ */
+function order_reactive_statements(unsorted_reactive_declarations) {
+	/** @typedef {[import('estree').LabeledStatement, ReactiveStatement]} Tuple */
+
+	/** @type {Map<string, Array<Tuple>>} */
+	const lookup = new Map();
+
+	for (const [node, declaration] of unsorted_reactive_declarations) {
+		for (const binding of declaration.assignments) {
+			const statements = lookup.get(binding.node.name) ?? [];
+			statements.push([node, declaration]);
+			lookup.set(binding.node.name, statements);
+		}
+	}
+
+	/** @type {Array<[string, string]>} */
+	const edges = [];
+
+	for (const [, { assignments, dependencies }] of unsorted_reactive_declarations) {
+		for (const assignment of assignments) {
+			for (const dependency of dependencies) {
+				if (!assignments.has(dependency)) {
+					edges.push([assignment.node.name, dependency.node.name]);
+				}
+			}
+		}
+	}
+
+	const cycle = check_graph_for_cycles(edges);
+	if (cycle?.length) {
+		const declaration = /** @type {Tuple[]} */ (lookup.get(cycle[0]))[0];
+		e.reactive_declaration_cycle(declaration[0], cycle.join(' → '));
+	}
+
+	// We use a map and take advantage of the fact that the spec says insertion order is preserved when iterating
+	/** @type {Map<import('estree').LabeledStatement, ReactiveStatement>} */
+	const reactive_declarations = new Map();
+
+	/**
+	 *
+	 * @param {import('estree').LabeledStatement} node
+	 * @param {ReactiveStatement} declaration
+	 * @returns
+	 */
+	const add_declaration = (node, declaration) => {
+		if ([...reactive_declarations.values()].includes(declaration)) return;
+
+		for (const binding of declaration.dependencies) {
+			if (declaration.assignments.has(binding)) continue;
+			for (const [node, earlier] of lookup.get(binding.node.name) ?? []) {
+				add_declaration(node, earlier);
+			}
+		}
+
+		reactive_declarations.set(node, declaration);
+	};
+
+	for (const [node, declaration] of unsorted_reactive_declarations) {
+		add_declaration(node, declaration);
+	}
+
+	return reactive_declarations;
+}

node_modules/svelte/src/compiler/phases/2-analyze/types.d.ts

@@ -0,0 +1,39 @@
+import type { Scope } from '../scope.js';
+import type { ComponentAnalysis, ReactiveStatement } from '../types.js';
+import type { AST, ExpressionMetadata, ValidatedCompileOptions } from '#compiler';
+import type { LabeledStatement } from 'estree';
+
+export interface AnalysisState {
+	scope: Scope;
+	scopes: Map<AST.SvelteNode, Scope>;
+	analysis: ComponentAnalysis;
+	options: ValidatedCompileOptions;
+	ast_type: 'instance' | 'template' | 'module';
+	/**
+	 * Tag name of the parent element. `null` if the parent is `svelte:element`, `#snippet`, a component or the root.
+	 * Parent doesn't necessarily mean direct path predecessor because there could be `#each`, `#if` etc in-between.
+	 */
+	parent_element: string | null;
+	has_props_rune: boolean;
+	/** Which slots the current parent component has */
+	component_slots: Set<string>;
+	/** Information about the current expression/directive/block value */
+	expression: ExpressionMetadata | null;
+	private_derived_state: string[];
+	function_depth: number;
+
+	// legacy stuff
+	instance_scope: Scope;
+	reactive_statement: null | ReactiveStatement;
+	reactive_statements: Map<LabeledStatement, ReactiveStatement>;
+}
+
+export type Context<State extends AnalysisState = AnalysisState> = import('zimmerframe').Context<
+	AST.SvelteNode,
+	State
+>;
+
+export type Visitors<State extends AnalysisState = AnalysisState> = import('zimmerframe').Visitors<
+	AST.SvelteNode,
+	State
+>;

node_modules/svelte/src/compiler/phases/2-analyze/utils/check_graph_for_cycles.js

@@ -0,0 +1,46 @@
+/**
+ * @template T
+ * @param {Array<[T, T]>} edges
+ * @returns {Array<T>|undefined}
+ */
+export default function check_graph_for_cycles(edges) {
+	/** @type {Map<T, T[]>} */
+	const graph = edges.reduce((g, edge) => {
+		const [u, v] = edge;
+		if (!g.has(u)) g.set(u, []);
+		if (!g.has(v)) g.set(v, []);
+		g.get(u).push(v);
+		return g;
+	}, new Map());
+
+	const visited = new Set();
+	const on_stack = new Set();
+	/** @type {Array<Array<T>>} */
+	const cycles = [];
+
+	/**
+	 * @param {T} v
+	 */
+	function visit(v) {
+		visited.add(v);
+		on_stack.add(v);
+
+		graph.get(v)?.forEach((w) => {
+			if (!visited.has(w)) {
+				visit(w);
+			} else if (on_stack.has(w)) {
+				cycles.push([...on_stack, w]);
+			}
+		});
+
+		on_stack.delete(v);
+	}
+
+	graph.forEach((_, v) => {
+		if (!visited.has(v)) {
+			visit(v);
+		}
+	});
+
+	return cycles[0];
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/ArrowFunctionExpression.js

@@ -0,0 +1,11 @@
+/** @import { ArrowFunctionExpression } from 'estree' */
+/** @import { Context } from '../types' */
+import { visit_function } from './shared/function.js';
+
+/**
+ * @param {ArrowFunctionExpression} node
+ * @param {Context} context
+ */
+export function ArrowFunctionExpression(node, context) {
+	visit_function(node, context);
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/AssignmentExpression.js

@@ -0,0 +1,27 @@
+/** @import { AssignmentExpression } from 'estree' */
+/** @import { Context } from '../types' */
+import { extract_identifiers, object } from '../../../utils/ast.js';
+import { validate_assignment } from './shared/utils.js';
+
+/**
+ * @param {AssignmentExpression} node
+ * @param {Context} context
+ */
+export function AssignmentExpression(node, context) {
+	validate_assignment(node, node.left, context.state);
+
+	if (context.state.reactive_statement) {
+		const id = node.left.type === 'MemberExpression' ? object(node.left) : node.left;
+		if (id !== null) {
+			for (const id of extract_identifiers(node.left)) {
+				const binding = context.state.scope.get(id.name);
+
+				if (binding) {
+					context.state.reactive_statement.assignments.add(binding);
+				}
+			}
+		}
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/Attribute.js

@@ -0,0 +1,243 @@
+/** @import { ArrowFunctionExpression, Expression, FunctionDeclaration, FunctionExpression } from 'estree' */
+/** @import { AST, DelegatedEvent } from '#compiler' */
+/** @import { Context } from '../types' */
+import { cannot_be_set_statically, is_capture_event, is_delegated } from '../../../../utils.js';
+import {
+	get_attribute_chunks,
+	get_attribute_expression,
+	is_event_attribute
+} from '../../../utils/ast.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.Attribute} node
+ * @param {Context} context
+ */
+export function Attribute(node, context) {
+	context.next();
+
+	const parent = /** @type {AST.SvelteNode} */ (context.path.at(-1));
+
+	if (parent.type === 'RegularElement') {
+		// special case <option value="" />
+		if (node.name === 'value' && parent.name === 'option') {
+			mark_subtree_dynamic(context.path);
+		}
+
+		// special case <img loading="lazy" />
+		if (node.name === 'loading' && parent.name === 'img') {
+			mark_subtree_dynamic(context.path);
+		}
+	}
+
+	if (is_event_attribute(node)) {
+		mark_subtree_dynamic(context.path);
+	}
+
+	if (cannot_be_set_statically(node.name)) {
+		mark_subtree_dynamic(context.path);
+	}
+
+	// class={[...]} or class={{...}} or `class={x}` need clsx to resolve the classes
+	if (
+		node.name === 'class' &&
+		!Array.isArray(node.value) &&
+		node.value !== true &&
+		node.value.expression.type !== 'Literal' &&
+		node.value.expression.type !== 'TemplateLiteral' &&
+		node.value.expression.type !== 'BinaryExpression'
+	) {
+		mark_subtree_dynamic(context.path);
+		node.metadata.needs_clsx = true;
+	}
+
+	if (node.value !== true) {
+		for (const chunk of get_attribute_chunks(node.value)) {
+			if (chunk.type !== 'ExpressionTag') continue;
+
+			if (
+				chunk.expression.type === 'FunctionExpression' ||
+				chunk.expression.type === 'ArrowFunctionExpression'
+			) {
+				continue;
+			}
+		}
+
+		if (is_event_attribute(node)) {
+			const parent = context.path.at(-1);
+			if (parent?.type === 'RegularElement' || parent?.type === 'SvelteElement') {
+				context.state.analysis.uses_event_attributes = true;
+			}
+
+			const expression = get_attribute_expression(node);
+			const delegated_event = get_delegated_event(node.name.slice(2), expression, context);
+
+			if (delegated_event !== null) {
+				if (delegated_event.hoisted) {
+					delegated_event.function.metadata.hoisted = true;
+				}
+
+				node.metadata.delegated = delegated_event;
+			}
+		}
+	}
+}
+
+/** @type {DelegatedEvent} */
+const unhoisted = { hoisted: false };
+
+/**
+ * Checks if given event attribute can be delegated/hoisted and returns the corresponding info if so
+ * @param {string} event_name
+ * @param {Expression | null} handler
+ * @param {Context} context
+ * @returns {null | DelegatedEvent}
+ */
+function get_delegated_event(event_name, handler, context) {
+	// Handle delegated event handlers. Bail out if not a delegated event.
+	if (!handler || !is_delegated(event_name)) {
+		return null;
+	}
+
+	// If we are not working with a RegularElement, then bail out.
+	const element = context.path.at(-1);
+	if (element?.type !== 'RegularElement') {
+		return null;
+	}
+
+	/** @type {FunctionExpression | FunctionDeclaration | ArrowFunctionExpression | null} */
+	let target_function = null;
+	let binding = null;
+
+	if (element.metadata.has_spread) {
+		// event attribute becomes part of the dynamic spread array
+		return unhoisted;
+	}
+
+	if (handler.type === 'ArrowFunctionExpression' || handler.type === 'FunctionExpression') {
+		target_function = handler;
+	} else if (handler.type === 'Identifier') {
+		binding = context.state.scope.get(handler.name);
+
+		if (context.state.analysis.module.scope.references.has(handler.name)) {
+			// If a binding with the same name is referenced in the module scope (even if not declared there), bail out
+			return unhoisted;
+		}
+
+		if (binding != null) {
+			for (const { path } of binding.references) {
+				const parent = path.at(-1);
+				if (parent === undefined) return unhoisted;
+
+				const grandparent = path.at(-2);
+
+				/** @type {AST.RegularElement | null} */
+				let element = null;
+				/** @type {string | null} */
+				let event_name = null;
+				if (parent.type === 'OnDirective') {
+					element = /** @type {AST.RegularElement} */ (grandparent);
+					event_name = parent.name;
+				} else if (
+					parent.type === 'ExpressionTag' &&
+					grandparent?.type === 'Attribute' &&
+					is_event_attribute(grandparent)
+				) {
+					element = /** @type {AST.RegularElement} */ (path.at(-3));
+					const attribute = /** @type {AST.Attribute} */ (grandparent);
+					event_name = get_attribute_event_name(attribute.name);
+				}
+
+				if (element && event_name) {
+					if (
+						element.type !== 'RegularElement' ||
+						element.metadata.has_spread ||
+						!is_delegated(event_name)
+					) {
+						return unhoisted;
+					}
+				} else if (parent.type !== 'FunctionDeclaration' && parent.type !== 'VariableDeclarator') {
+					return unhoisted;
+				}
+			}
+		}
+
+		// If the binding is exported, bail out
+		if (context.state.analysis.exports.find((node) => node.name === handler.name)) {
+			return unhoisted;
+		}
+
+		if (binding !== null && binding.initial !== null && !binding.updated && !binding.is_called) {
+			const binding_type = binding.initial.type;
+
+			if (
+				binding_type === 'ArrowFunctionExpression' ||
+				binding_type === 'FunctionDeclaration' ||
+				binding_type === 'FunctionExpression'
+			) {
+				target_function = binding.initial;
+			}
+		}
+	}
+
+	// If we can't find a function, or the function has multiple parameters, bail out
+	if (target_function == null || target_function.params.length > 1) {
+		return unhoisted;
+	}
+
+	const visited_references = new Set();
+	const scope = target_function.metadata.scope;
+	for (const [reference] of scope.references) {
+		// Bail out if the arguments keyword is used or $host is referenced
+		if (reference === 'arguments' || reference === '$host') return unhoisted;
+		// Bail out if references a store subscription
+		if (scope.get(`$${reference}`)?.kind === 'store_sub') return unhoisted;
+
+		const binding = scope.get(reference);
+		const local_binding = context.state.scope.get(reference);
+
+		// If we are referencing a binding that is shadowed in another scope then bail out.
+		if (local_binding !== null && binding !== null && local_binding.node !== binding.node) {
+			return unhoisted;
+		}
+
+		// If we have multiple references to the same store using $ prefix, bail out.
+		if (
+			binding !== null &&
+			binding.kind === 'store_sub' &&
+			visited_references.has(reference.slice(1))
+		) {
+			return unhoisted;
+		}
+
+		// If we reference the index within an each block, then bail out.
+		if (binding !== null && binding.initial?.type === 'EachBlock') return unhoisted;
+
+		if (
+			binding !== null &&
+			// Bail out if the the binding is a rest param
+			(binding.declaration_kind === 'rest_param' ||
+				// Bail out if we reference anything from the EachBlock (for now) that mutates in non-runes mode,
+				(((!context.state.analysis.runes && binding.kind === 'each') ||
+					// or any normal not reactive bindings that are mutated.
+					binding.kind === 'normal') &&
+					binding.updated))
+		) {
+			return unhoisted;
+		}
+		visited_references.add(reference);
+	}
+
+	return { hoisted: true, function: target_function };
+}
+
+/**
+ * @param {string} event_name
+ */
+function get_attribute_event_name(event_name) {
+	event_name = event_name.slice(2);
+	if (is_capture_event(event_name)) {
+		event_name = event_name.slice(0, -7);
+	}
+	return event_name;
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/AwaitBlock.js

@@ -0,0 +1,45 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { validate_block_not_empty, validate_opening_tag } from './shared/utils.js';
+import * as e from '../../../errors.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.AwaitBlock} node
+ * @param {Context} context
+ */
+export function AwaitBlock(node, context) {
+	validate_block_not_empty(node.pending, context);
+	validate_block_not_empty(node.then, context);
+	validate_block_not_empty(node.catch, context);
+
+	if (context.state.analysis.runes) {
+		validate_opening_tag(node, context.state, '#');
+
+		if (node.value) {
+			const start = /** @type {number} */ (node.value.start);
+			const match = context.state.analysis.source
+				.substring(start - 10, start)
+				.match(/{(\s*):then\s+$/);
+
+			if (match && match[1] !== '') {
+				e.block_unexpected_character({ start: start - 10, end: start }, ':');
+			}
+		}
+
+		if (node.error) {
+			const start = /** @type {number} */ (node.error.start);
+			const match = context.state.analysis.source
+				.substring(start - 10, start)
+				.match(/{(\s*):catch\s+$/);
+
+			if (match && match[1] !== '') {
+				e.block_unexpected_character({ start: start - 10, end: start }, ':');
+			}
+		}
+	}
+
+	mark_subtree_dynamic(context.path);
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/BindDirective.js

@@ -0,0 +1,258 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import {
+	extract_all_identifiers_from_expression,
+	is_text_attribute,
+	object
+} from '../../../utils/ast.js';
+import { validate_no_const_assignment } from './shared/utils.js';
+import * as e from '../../../errors.js';
+import * as w from '../../../warnings.js';
+import { binding_properties } from '../../bindings.js';
+import fuzzymatch from '../../1-parse/utils/fuzzymatch.js';
+import { is_content_editable_binding, is_svg } from '../../../../utils.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.BindDirective} node
+ * @param {Context} context
+ */
+export function BindDirective(node, context) {
+	const parent = context.path.at(-1);
+
+	if (
+		parent?.type === 'RegularElement' ||
+		parent?.type === 'SvelteElement' ||
+		parent?.type === 'SvelteWindow' ||
+		parent?.type === 'SvelteDocument' ||
+		parent?.type === 'SvelteBody'
+	) {
+		if (node.name in binding_properties) {
+			const property = binding_properties[node.name];
+			if (property.valid_elements && !property.valid_elements.includes(parent.name)) {
+				e.bind_invalid_target(
+					node,
+					node.name,
+					property.valid_elements.map((valid_element) => `<${valid_element}>`).join(', ')
+				);
+			}
+
+			if (property.invalid_elements && property.invalid_elements.includes(parent.name)) {
+				const valid_bindings = Object.entries(binding_properties)
+					.filter(([_, binding_property]) => {
+						return (
+							binding_property.valid_elements?.includes(parent.name) ||
+							(!binding_property.valid_elements &&
+								!binding_property.invalid_elements?.includes(parent.name))
+						);
+					})
+					.map(([property_name]) => property_name)
+					.sort();
+
+				e.bind_invalid_name(
+					node,
+					node.name,
+					`Possible bindings for <${parent.name}> are ${valid_bindings.join(', ')}`
+				);
+			}
+
+			if (parent.name === 'input' && node.name !== 'this') {
+				const type = /** @type {AST.Attribute | undefined} */ (
+					parent.attributes.find((a) => a.type === 'Attribute' && a.name === 'type')
+				);
+
+				if (type && !is_text_attribute(type)) {
+					if (node.name !== 'value' || type.value === true) {
+						e.attribute_invalid_type(type);
+					}
+				} else {
+					if (node.name === 'checked' && type?.value[0].data !== 'checkbox') {
+						e.bind_invalid_target(node, node.name, '<input type="checkbox">');
+					}
+
+					if (node.name === 'files' && type?.value[0].data !== 'file') {
+						e.bind_invalid_target(node, node.name, '<input type="file">');
+					}
+				}
+			}
+
+			if (parent.name === 'select' && node.name !== 'this') {
+				const multiple = parent.attributes.find(
+					(a) =>
+						a.type === 'Attribute' &&
+						a.name === 'multiple' &&
+						!is_text_attribute(a) &&
+						a.value !== true
+				);
+
+				if (multiple) {
+					e.attribute_invalid_multiple(multiple);
+				}
+			}
+
+			if (node.name === 'offsetWidth' && is_svg(parent.name)) {
+				e.bind_invalid_target(
+					node,
+					node.name,
+					`non-<svg> elements. Use 'clientWidth' for <svg> instead`
+				);
+			}
+
+			if (is_content_editable_binding(node.name)) {
+				const contenteditable = /** @type {AST.Attribute} */ (
+					parent.attributes.find((a) => a.type === 'Attribute' && a.name === 'contenteditable')
+				);
+
+				if (!contenteditable) {
+					e.attribute_contenteditable_missing(node);
+				} else if (!is_text_attribute(contenteditable) && contenteditable.value !== true) {
+					e.attribute_contenteditable_dynamic(contenteditable);
+				}
+			}
+		} else {
+			const match = fuzzymatch(node.name, Object.keys(binding_properties));
+
+			if (match) {
+				const property = binding_properties[match];
+				if (!property.valid_elements || property.valid_elements.includes(parent.name)) {
+					e.bind_invalid_name(node, node.name, `Did you mean '${match}'?`);
+				}
+			}
+
+			e.bind_invalid_name(node, node.name);
+		}
+	}
+
+	// When dealing with bind getters/setters skip the specific binding validation
+	// Group bindings aren't supported for getter/setters so we don't need to handle
+	// the metadata
+	if (node.expression.type === 'SequenceExpression') {
+		if (node.name === 'group') {
+			e.bind_group_invalid_expression(node);
+		}
+
+		let i = /** @type {number} */ (node.expression.start);
+		let leading_comments_start = /**@type {any}*/ (node.expression.leadingComments?.at(0))?.start;
+		let leading_comments_end = /**@type {any}*/ (node.expression.leadingComments?.at(-1))?.end;
+		while (context.state.analysis.source[--i] !== '{') {
+			if (
+				context.state.analysis.source[i] === '(' &&
+				// if the parenthesis is in a leading comment we don't need to throw the error
+				!(
+					leading_comments_start &&
+					leading_comments_end &&
+					i <= leading_comments_end &&
+					i >= leading_comments_start
+				)
+			) {
+				e.bind_invalid_parens(node, node.name);
+			}
+		}
+
+		if (node.expression.expressions.length !== 2) {
+			e.bind_invalid_expression(node);
+		}
+
+		mark_subtree_dynamic(context.path);
+
+		return;
+	}
+
+	validate_no_const_assignment(node, node.expression, context.state.scope, true);
+
+	const assignee = node.expression;
+	const left = object(assignee);
+
+	if (left === null) {
+		e.bind_invalid_expression(node);
+	}
+
+	const binding = context.state.scope.get(left.name);
+
+	if (assignee.type === 'Identifier') {
+		// reassignment
+		if (
+			node.name !== 'this' && // bind:this also works for regular variables
+			(!binding ||
+				(binding.kind !== 'state' &&
+					binding.kind !== 'raw_state' &&
+					binding.kind !== 'prop' &&
+					binding.kind !== 'bindable_prop' &&
+					binding.kind !== 'each' &&
+					binding.kind !== 'store_sub' &&
+					!binding.updated)) // TODO wut?
+		) {
+			e.bind_invalid_value(node.expression);
+		}
+
+		if (context.state.analysis.runes && binding?.kind === 'each') {
+			e.each_item_invalid_assignment(node);
+		}
+
+		if (binding?.kind === 'snippet') {
+			e.snippet_parameter_assignment(node);
+		}
+	}
+
+	if (node.name === 'group') {
+		if (!binding) {
+			throw new Error('Cannot find declaration for bind:group');
+		}
+
+		// Traverse the path upwards and find all EachBlocks who are (indirectly) contributing to bind:group,
+		// i.e. one of their declarations is referenced in the binding. This allows group bindings to work
+		// correctly when referencing a variable declared in an EachBlock by using the index of the each block
+		// entries as keys.
+		const each_blocks = [];
+		const [keypath, expression_ids] = extract_all_identifiers_from_expression(node.expression);
+		let ids = expression_ids;
+
+		let i = context.path.length;
+		while (i--) {
+			const parent = context.path[i];
+
+			if (parent.type === 'EachBlock') {
+				const references = ids.filter((id) => parent.metadata.declarations.has(id.name));
+
+				if (references.length > 0) {
+					parent.metadata.contains_group_binding = true;
+
+					each_blocks.push(parent);
+					ids = ids.filter((id) => !references.includes(id));
+					ids.push(...extract_all_identifiers_from_expression(parent.expression)[1]);
+				}
+			}
+		}
+
+		// The identifiers that make up the binding expression form they key for the binding group.
+		// If the same identifiers in the same order are used in another bind:group, they will be in the same group.
+		// (there's an edge case where `bind:group={a[i]}` will be in a different group than `bind:group={a[j]}` even when i == j,
+		//  but this is a limitation of the current static analysis we do; it also never worked in Svelte 4)
+		const bindings = expression_ids.map((id) => context.state.scope.get(id.name));
+		let group_name;
+
+		outer: for (const [[key, b], group] of context.state.analysis.binding_groups) {
+			if (b.length !== bindings.length || key !== keypath) continue;
+			for (let i = 0; i < bindings.length; i++) {
+				if (bindings[i] !== b[i]) continue outer;
+			}
+			group_name = group;
+		}
+
+		if (!group_name) {
+			group_name = context.state.scope.root.unique('binding_group');
+			context.state.analysis.binding_groups.set([keypath, bindings], group_name);
+		}
+
+		node.metadata = {
+			binding_group_name: group_name,
+			parent_each_blocks: each_blocks
+		};
+	}
+
+	if (binding?.kind === 'each' && binding.metadata?.inside_rest) {
+		w.bind_invalid_each_rest(binding.node, binding.node.name);
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/CallExpression.js

@@ -0,0 +1,243 @@
+/** @import { ArrowFunctionExpression, CallExpression, Expression, FunctionDeclaration, FunctionExpression, Identifier, VariableDeclarator } from 'estree' */
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { get_rune } from '../../scope.js';
+import * as e from '../../../errors.js';
+import { get_parent, unwrap_optional } from '../../../utils/ast.js';
+import { is_pure, is_safe_identifier } from './shared/utils.js';
+import { dev, locate_node, source } from '../../../state.js';
+import * as b from '../../../utils/builders.js';
+
+/**
+ * @param {CallExpression} node
+ * @param {Context} context
+ */
+export function CallExpression(node, context) {
+	const parent = /** @type {AST.SvelteNode} */ (get_parent(context.path, -1));
+
+	const rune = get_rune(node, context.state.scope);
+
+	switch (rune) {
+		case null:
+			if (!is_safe_identifier(node.callee, context.state.scope)) {
+				context.state.analysis.needs_context = true;
+			}
+
+			break;
+
+		case '$bindable':
+			if (node.arguments.length > 1) {
+				e.rune_invalid_arguments_length(node, '$bindable', 'zero or one arguments');
+			}
+
+			if (
+				parent.type !== 'AssignmentPattern' ||
+				context.path.at(-3)?.type !== 'ObjectPattern' ||
+				context.path.at(-4)?.type !== 'VariableDeclarator' ||
+				get_rune(
+					/** @type {VariableDeclarator} */ (context.path.at(-4)).init,
+					context.state.scope
+				) !== '$props'
+			) {
+				e.bindable_invalid_location(node);
+			}
+
+			break;
+
+		case '$host':
+			if (node.arguments.length > 0) {
+				e.rune_invalid_arguments(node, '$host');
+			} else if (context.state.ast_type === 'module' || !context.state.analysis.custom_element) {
+				e.host_invalid_placement(node);
+			}
+
+			break;
+
+		case '$props':
+			if (context.state.has_props_rune) {
+				e.props_duplicate(node);
+			}
+
+			context.state.has_props_rune = true;
+
+			if (
+				parent.type !== 'VariableDeclarator' ||
+				context.state.ast_type !== 'instance' ||
+				context.state.scope !== context.state.analysis.instance.scope
+			) {
+				e.props_invalid_placement(node);
+			}
+
+			if (node.arguments.length > 0) {
+				e.rune_invalid_arguments(node, rune);
+			}
+
+			break;
+
+		case '$state':
+		case '$state.raw':
+		case '$derived':
+		case '$derived.by':
+			if (
+				(parent.type !== 'VariableDeclarator' ||
+					get_parent(context.path, -3).type === 'ConstTag') &&
+				!(parent.type === 'PropertyDefinition' && !parent.static && !parent.computed)
+			) {
+				e.state_invalid_placement(node, rune);
+			}
+
+			if ((rune === '$derived' || rune === '$derived.by') && node.arguments.length !== 1) {
+				e.rune_invalid_arguments_length(node, rune, 'exactly one argument');
+			} else if (rune === '$state' && node.arguments.length > 1) {
+				e.rune_invalid_arguments_length(node, rune, 'zero or one arguments');
+			}
+
+			break;
+
+		case '$effect':
+		case '$effect.pre':
+			if (parent.type !== 'ExpressionStatement') {
+				e.effect_invalid_placement(node);
+			}
+
+			if (node.arguments.length !== 1) {
+				e.rune_invalid_arguments_length(node, rune, 'exactly one argument');
+			}
+
+			// `$effect` needs context because Svelte needs to know whether it should re-run
+			// effects that invalidate themselves, and that's determined by whether we're in runes mode
+			context.state.analysis.needs_context = true;
+
+			break;
+
+		case '$effect.tracking':
+			if (node.arguments.length !== 0) {
+				e.rune_invalid_arguments(node, rune);
+			}
+
+			break;
+
+		case '$effect.root':
+			if (node.arguments.length !== 1) {
+				e.rune_invalid_arguments_length(node, rune, 'exactly one argument');
+			}
+
+			break;
+
+		case '$inspect':
+			if (node.arguments.length < 1) {
+				e.rune_invalid_arguments_length(node, rune, 'one or more arguments');
+			}
+
+			break;
+
+		case '$inspect().with':
+			if (node.arguments.length !== 1) {
+				e.rune_invalid_arguments_length(node, rune, 'exactly one argument');
+			}
+
+			break;
+
+		case '$inspect.trace': {
+			if (node.arguments.length > 1) {
+				e.rune_invalid_arguments_length(node, rune, 'zero or one arguments');
+			}
+
+			const grand_parent = context.path.at(-2);
+			const fn = context.path.at(-3);
+
+			if (
+				parent.type !== 'ExpressionStatement' ||
+				grand_parent?.type !== 'BlockStatement' ||
+				!(
+					fn?.type === 'FunctionDeclaration' ||
+					fn?.type === 'FunctionExpression' ||
+					fn?.type === 'ArrowFunctionExpression'
+				) ||
+				grand_parent.body[0] !== parent
+			) {
+				e.inspect_trace_invalid_placement(node);
+			}
+
+			if (fn.generator) {
+				e.inspect_trace_generator(node);
+			}
+
+			if (dev) {
+				if (node.arguments[0]) {
+					context.state.scope.tracing = b.thunk(/** @type {Expression} */ (node.arguments[0]));
+				} else {
+					const label = get_function_label(context.path.slice(0, -2)) ?? 'trace';
+					const loc = `(${locate_node(fn)})`;
+
+					context.state.scope.tracing = b.thunk(b.literal(label + ' ' + loc));
+				}
+
+				context.state.analysis.tracing = true;
+			}
+
+			break;
+		}
+
+		case '$state.snapshot':
+			if (node.arguments.length !== 1) {
+				e.rune_invalid_arguments_length(node, rune, 'exactly one argument');
+			}
+
+			break;
+	}
+
+	if (node.callee.type === 'Identifier') {
+		const binding = context.state.scope.get(node.callee.name);
+
+		if (binding !== null) {
+			binding.is_called = true;
+		}
+	}
+
+	// `$inspect(foo)` or `$derived(foo) should not trigger the `static-state-reference` warning
+	if (rune === '$inspect' || rune === '$derived') {
+		context.next({ ...context.state, function_depth: context.state.function_depth + 1 });
+	} else {
+		context.next();
+	}
+
+	if (context.state.expression) {
+		// TODO We assume that any dependencies are stateful, which isn't necessarily the case — see
+		// https://github.com/sveltejs/svelte/issues/13266. This check also includes dependencies
+		// outside the call expression itself (e.g. `{blah && pure()}`) resulting in additional
+		// false positives, but for now we accept that trade-off
+		if (!is_pure(node.callee, context) || context.state.expression.dependencies.size > 0) {
+			context.state.expression.has_call = true;
+			context.state.expression.has_state = true;
+		}
+	}
+}
+
+/**
+ * @param {AST.SvelteNode[]} nodes
+ */
+function get_function_label(nodes) {
+	const fn = /** @type {FunctionExpression | FunctionDeclaration | ArrowFunctionExpression} */ (
+		nodes.at(-1)
+	);
+
+	if ((fn.type === 'FunctionDeclaration' || fn.type === 'FunctionExpression') && fn.id != null) {
+		return fn.id.name;
+	}
+
+	const parent = nodes.at(-2);
+	if (!parent) return;
+
+	if (parent.type === 'CallExpression') {
+		return source.slice(parent.callee.start, parent.callee.end) + '(...)';
+	}
+
+	if (parent.type === 'Property' && !parent.computed) {
+		return /** @type {Identifier} */ (parent.key).name;
+	}
+
+	if (parent.type === 'VariableDeclarator' && parent.id.type === 'Identifier') {
+		return parent.id.name;
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/ClassBody.js

@@ -0,0 +1,27 @@
+/** @import { ClassBody } from 'estree' */
+/** @import { Context } from '../types' */
+import { get_rune } from '../../scope.js';
+
+/**
+ * @param {ClassBody} node
+ * @param {Context} context
+ */
+export function ClassBody(node, context) {
+	/** @type {string[]} */
+	const private_derived_state = [];
+
+	for (const definition of node.body) {
+		if (
+			definition.type === 'PropertyDefinition' &&
+			definition.key.type === 'PrivateIdentifier' &&
+			definition.value?.type === 'CallExpression'
+		) {
+			const rune = get_rune(definition.value, context.state.scope);
+			if (rune === '$derived' || rune === '$derived.by') {
+				private_derived_state.push(definition.key.name);
+			}
+		}
+	}
+
+	context.next({ ...context.state, private_derived_state });
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/ClassDeclaration.js

@@ -0,0 +1,25 @@
+/** @import { ClassDeclaration } from 'estree' */
+/** @import { Context } from '../types' */
+import * as w from '../../../warnings.js';
+import { validate_identifier_name } from './shared/utils.js';
+
+/**
+ * @param {ClassDeclaration} node
+ * @param {Context} context
+ */
+export function ClassDeclaration(node, context) {
+	if (context.state.analysis.runes && node.id !== null) {
+		validate_identifier_name(context.state.scope.get(node.id.name));
+	}
+
+	// In modules, we allow top-level module scope only, in components, we allow the component scope,
+	// which is function_depth of 1. With the exception of `new class` which is also not allowed at
+	// component scope level either.
+	const allowed_depth = context.state.ast_type === 'module' ? 0 : 1;
+
+	if (context.state.scope.function_depth > allowed_depth) {
+		w.perf_avoid_nested_class(node);
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/ClassDirective.js

@@ -0,0 +1,13 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.ClassDirective} node
+ * @param {Context} context
+ */
+export function ClassDirective(node, context) {
+	mark_subtree_dynamic(context.path);
+	context.next({ ...context.state, expression: node.metadata.expression });
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/Component.js

@@ -0,0 +1,20 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { visit_component } from './shared/component.js';
+
+/**
+ * @param {AST.Component} node
+ * @param {Context} context
+ */
+export function Component(node, context) {
+	const binding = context.state.scope.get(
+		node.name.includes('.') ? node.name.slice(0, node.name.indexOf('.')) : node.name
+	);
+
+	node.metadata.dynamic =
+		context.state.analysis.runes && // Svelte 4 required you to use svelte:component to switch components
+		binding !== null &&
+		(binding.kind !== 'normal' || node.name.includes('.'));
+
+	visit_component(node, context);
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/ConstTag.js

@@ -0,0 +1,35 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+import { validate_opening_tag } from './shared/utils.js';
+
+/**
+ * @param {AST.ConstTag} node
+ * @param {Context} context
+ */
+export function ConstTag(node, context) {
+	if (context.state.analysis.runes) {
+		validate_opening_tag(node, context.state, '@');
+	}
+
+	const parent = context.path.at(-1);
+	const grand_parent = context.path.at(-2);
+
+	if (
+		parent?.type !== 'Fragment' ||
+		(grand_parent?.type !== 'IfBlock' &&
+			grand_parent?.type !== 'SvelteFragment' &&
+			grand_parent?.type !== 'Component' &&
+			grand_parent?.type !== 'SvelteComponent' &&
+			grand_parent?.type !== 'EachBlock' &&
+			grand_parent?.type !== 'AwaitBlock' &&
+			grand_parent?.type !== 'SnippetBlock' &&
+			grand_parent?.type !== 'SvelteBoundary' &&
+			((grand_parent?.type !== 'RegularElement' && grand_parent?.type !== 'SvelteElement') ||
+				!grand_parent.attributes.some((a) => a.type === 'Attribute' && a.name === 'slot')))
+	) {
+		e.const_tag_invalid_placement(node);
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/DebugTag.js

@@ -0,0 +1,15 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { validate_opening_tag } from './shared/utils.js';
+
+/**
+ * @param {AST.DebugTag} node
+ * @param {Context} context
+ */
+export function DebugTag(node, context) {
+	if (context.state.analysis.runes) {
+		validate_opening_tag(node, context.state, '@');
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/EachBlock.js

@@ -0,0 +1,42 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+/** @import { Scope } from '../../scope' */
+import * as e from '../../../errors.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+import { validate_block_not_empty, validate_opening_tag } from './shared/utils.js';
+
+/**
+ * @param {AST.EachBlock} node
+ * @param {Context} context
+ */
+export function EachBlock(node, context) {
+	validate_opening_tag(node, context.state, '#');
+
+	validate_block_not_empty(node.body, context);
+	validate_block_not_empty(node.fallback, context);
+
+	const id = node.context;
+	if (id?.type === 'Identifier' && (id.name === '$state' || id.name === '$derived')) {
+		// TODO weird that this is necessary
+		e.state_invalid_placement(node, id.name);
+	}
+
+	if (node.key) {
+		// treat `{#each items as item, i (i)}` as a normal indexed block, everything else as keyed
+		node.metadata.keyed =
+			node.key.type !== 'Identifier' || !node.index || node.key.name !== node.index;
+	}
+
+	// evaluate expression in parent scope
+	context.visit(node.expression, {
+		...context.state,
+		expression: node.metadata.expression,
+		scope: /** @type {Scope} */ (context.state.scope.parent)
+	});
+
+	context.visit(node.body);
+	if (node.key) context.visit(node.key);
+	if (node.fallback) context.visit(node.fallback);
+
+	mark_subtree_dynamic(context.path);
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/ExportDefaultDeclaration.js

@@ -0,0 +1,20 @@
+/** @import { ExportDefaultDeclaration } from 'estree' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+import { validate_export } from './shared/utils.js';
+
+/**
+ * @param {ExportDefaultDeclaration} node
+ * @param {Context} context
+ */
+export function ExportDefaultDeclaration(node, context) {
+	if (!context.state.ast_type /* .svelte.js module */) {
+		if (node.declaration.type === 'Identifier') {
+			validate_export(node, context.state.scope, node.declaration.name);
+		}
+	} else {
+		e.module_illegal_default_export(node);
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/ExportNamedDeclaration.js

@@ -0,0 +1,61 @@
+/** @import { ExportNamedDeclaration, Identifier, Node } from 'estree' */
+/** @import { Binding } from '#compiler' */
+/** @import { Context } from '../types' */
+/** @import { Scope } from '../../scope' */
+import * as e from '../../../errors.js';
+import { extract_identifiers } from '../../../utils/ast.js';
+
+/**
+ * @param {ExportNamedDeclaration} node
+ * @param {Context} context
+ */
+export function ExportNamedDeclaration(node, context) {
+	// visit children, so bindings are correctly initialised
+	context.next();
+
+	if (node.declaration?.type === 'VariableDeclaration') {
+		// in runes mode, forbid `export let`
+		if (
+			context.state.analysis.runes &&
+			context.state.ast_type === 'instance' &&
+			node.declaration.kind === 'let'
+		) {
+			e.legacy_export_invalid(node);
+		}
+
+		for (const declarator of node.declaration.declarations) {
+			for (const id of extract_identifiers(declarator.id)) {
+				const binding = context.state.scope.get(id.name);
+				if (!binding) continue;
+
+				if (binding.kind === 'derived') {
+					e.derived_invalid_export(node);
+				}
+
+				if ((binding.kind === 'state' || binding.kind === 'raw_state') && binding.reassigned) {
+					e.state_invalid_export(node);
+				}
+			}
+		}
+	}
+
+	if (context.state.analysis.runes) {
+		if (node.declaration && context.state.ast_type === 'instance') {
+			if (
+				node.declaration.type === 'FunctionDeclaration' ||
+				node.declaration.type === 'ClassDeclaration'
+			) {
+				context.state.analysis.exports.push({
+					name: /** @type {Identifier} */ (node.declaration.id).name,
+					alias: null
+				});
+			} else if (node.declaration.kind === 'const') {
+				for (const declarator of node.declaration.declarations) {
+					for (const node of extract_identifiers(declarator.id)) {
+						context.state.analysis.exports.push({ name: node.name, alias: null });
+					}
+				}
+			}
+		}
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/ExportSpecifier.js

@@ -0,0 +1,30 @@
+/** @import { ExportSpecifier } from 'estree' */
+/** @import { Context } from '../types' */
+import { validate_export } from './shared/utils.js';
+
+/**
+ * @param {ExportSpecifier} node
+ * @param {Context} context
+ */
+export function ExportSpecifier(node, context) {
+	const local_name =
+		node.local.type === 'Identifier' ? node.local.name : /** @type {string} */ (node.local.value);
+	const exported_name =
+		node.exported.type === 'Identifier'
+			? node.exported.name
+			: /** @type {string} */ (node.exported.value);
+
+	if (context.state.ast_type === 'instance') {
+		if (context.state.analysis.runes) {
+			context.state.analysis.exports.push({
+				name: local_name,
+				alias: exported_name
+			});
+
+			const binding = context.state.scope.get(local_name);
+			if (binding) binding.reassigned = binding.updated = true;
+		}
+	} else {
+		validate_export(node, context.state.scope, local_name);
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/ExpressionStatement.js

@@ -0,0 +1,38 @@
+/** @import { ExpressionStatement, ImportDeclaration } from 'estree' */
+/** @import { Context } from '../types' */
+import * as w from '../../../warnings.js';
+
+/**
+ * @param {ExpressionStatement} node
+ * @param {Context} context
+ */
+export function ExpressionStatement(node, context) {
+	// warn on `new Component({ target: ... })` if imported from a `.svelte` file
+	if (
+		node.expression.type === 'NewExpression' &&
+		node.expression.callee.type === 'Identifier' &&
+		node.expression.arguments.length === 1 &&
+		node.expression.arguments[0].type === 'ObjectExpression' &&
+		node.expression.arguments[0].properties.some(
+			(p) => p.type === 'Property' && p.key.type === 'Identifier' && p.key.name === 'target'
+		)
+	) {
+		const binding = context.state.scope.get(node.expression.callee.name);
+
+		if (binding?.kind === 'normal' && binding.declaration_kind === 'import') {
+			const declaration = /** @type {ImportDeclaration} */ (binding.initial);
+
+			// Theoretically someone could import a class from a `.svelte.js` module, but that's too rare to worry about
+			if (
+				/** @type {string} */ (declaration.source.value).endsWith('.svelte') &&
+				declaration.specifiers.find(
+					(s) => s.local.name === binding.node.name && s.type === 'ImportDefaultSpecifier'
+				)
+			) {
+				w.legacy_component_creation(node.expression);
+			}
+		}
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/ExpressionTag.js

@@ -0,0 +1,26 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { is_tag_valid_with_parent } from '../../../../html-tree-validation.js';
+import * as e from '../../../errors.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.ExpressionTag} node
+ * @param {Context} context
+ */
+export function ExpressionTag(node, context) {
+	const in_template = context.path.at(-1)?.type === 'Fragment';
+
+	if (in_template && context.state.parent_element) {
+		const message = is_tag_valid_with_parent('#text', context.state.parent_element);
+		if (message) {
+			e.node_invalid_placement(node, message);
+		}
+	}
+
+	// TODO ideally we wouldn't do this here, we'd just do it on encountering
+	// an `Identifier` within the tag. But we currently need to handle `{42}` etc
+	mark_subtree_dynamic(context.path);
+
+	context.next({ ...context.state, expression: node.metadata.expression });
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/FunctionDeclaration.js

@@ -0,0 +1,16 @@
+/** @import { FunctionDeclaration } from 'estree' */
+/** @import { Context } from '../types' */
+import { visit_function } from './shared/function.js';
+import { validate_identifier_name } from './shared/utils.js';
+
+/**
+ * @param {FunctionDeclaration} node
+ * @param {Context} context
+ */
+export function FunctionDeclaration(node, context) {
+	if (context.state.analysis.runes && node.id !== null) {
+		validate_identifier_name(context.state.scope.get(node.id.name));
+	}
+
+	visit_function(node, context);
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/FunctionExpression.js

@@ -0,0 +1,11 @@
+/** @import { FunctionExpression } from 'estree' */
+/** @import { Context } from '../types' */
+import { visit_function } from './shared/function.js';
+
+/**
+ * @param {FunctionExpression} node
+ * @param {Context} context
+ */
+export function FunctionExpression(node, context) {
+	visit_function(node, context);
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/HtmlTag.js

@@ -0,0 +1,19 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { mark_subtree_dynamic } from './shared/fragment.js';
+import { validate_opening_tag } from './shared/utils.js';
+
+/**
+ * @param {AST.HtmlTag} node
+ * @param {Context} context
+ */
+export function HtmlTag(node, context) {
+	if (context.state.analysis.runes) {
+		validate_opening_tag(node, context.state, '@');
+	}
+
+	// unfortunately this is necessary in order to fix invalid HTML
+	mark_subtree_dynamic(context.path);
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/Identifier.js

@@ -0,0 +1,125 @@
+/** @import { Expression, Identifier } from 'estree' */
+/** @import { EachBlock } from '#compiler' */
+/** @import { Context } from '../types' */
+import is_reference from 'is-reference';
+import { should_proxy } from '../../3-transform/client/utils.js';
+import * as e from '../../../errors.js';
+import * as w from '../../../warnings.js';
+import { is_rune } from '../../../../utils.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {Identifier} node
+ * @param {Context} context
+ */
+export function Identifier(node, context) {
+	let i = context.path.length;
+	let parent = /** @type {Expression} */ (context.path[--i]);
+
+	if (!is_reference(node, parent)) {
+		return;
+	}
+
+	mark_subtree_dynamic(context.path);
+
+	// If we are using arguments outside of a function, then throw an error
+	if (
+		node.name === 'arguments' &&
+		!context.path.some((n) => n.type === 'FunctionDeclaration' || n.type === 'FunctionExpression')
+	) {
+		e.invalid_arguments_usage(node);
+	}
+
+	// `$$slots` exists even in runes mode
+	if (node.name === '$$slots') {
+		context.state.analysis.uses_slots = true;
+	}
+
+	if (context.state.analysis.runes) {
+		if (
+			is_rune(node.name) &&
+			context.state.scope.get(node.name) === null &&
+			context.state.scope.get(node.name.slice(1)) === null
+		) {
+			/** @type {Expression} */
+			let current = node;
+			let name = node.name;
+
+			while (parent.type === 'MemberExpression') {
+				if (parent.computed) e.rune_invalid_computed_property(parent);
+				name += `.${/** @type {Identifier} */ (parent.property).name}`;
+
+				current = parent;
+				parent = /** @type {Expression} */ (context.path[--i]);
+
+				if (!is_rune(name)) {
+					if (name === '$effect.active') {
+						e.rune_renamed(parent, '$effect.active', '$effect.tracking');
+					}
+
+					if (name === '$state.frozen') {
+						e.rune_renamed(parent, '$state.frozen', '$state.raw');
+					}
+
+					if (name === '$state.is') {
+						e.rune_removed(parent, '$state.is');
+					}
+
+					e.rune_invalid_name(parent, name);
+				}
+			}
+
+			if (parent.type !== 'CallExpression') {
+				e.rune_missing_parentheses(current);
+			}
+		}
+	}
+
+	let binding = context.state.scope.get(node.name);
+
+	if (!context.state.analysis.runes) {
+		if (node.name === '$$props') {
+			context.state.analysis.uses_props = true;
+		}
+
+		if (node.name === '$$restProps') {
+			context.state.analysis.uses_rest_props = true;
+		}
+	}
+
+	if (binding) {
+		if (context.state.expression) {
+			context.state.expression.dependencies.add(binding);
+			context.state.expression.has_state ||= binding.kind !== 'normal';
+		}
+
+		if (
+			context.state.analysis.runes &&
+			node !== binding.node &&
+			context.state.function_depth === binding.scope.function_depth &&
+			// If we have $state that can be proxied or frozen and isn't re-assigned, then that means
+			// it's likely not using a primitive value and thus this warning isn't that helpful.
+			((binding.kind === 'state' &&
+				(binding.reassigned ||
+					(binding.initial?.type === 'CallExpression' &&
+						binding.initial.arguments.length === 1 &&
+						binding.initial.arguments[0].type !== 'SpreadElement' &&
+						!should_proxy(binding.initial.arguments[0], context.state.scope)))) ||
+				binding.kind === 'raw_state' ||
+				binding.kind === 'derived') &&
+			// We're only concerned with reads here
+			(parent.type !== 'AssignmentExpression' || parent.left !== node) &&
+			parent.type !== 'UpdateExpression'
+		) {
+			w.state_referenced_locally(node);
+		}
+
+		if (
+			context.state.reactive_statement &&
+			binding.scope === context.state.analysis.module.scope &&
+			binding.reassigned
+		) {
+			w.reactive_declaration_module_script_dependency(node);
+		}
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/IfBlock.js

@@ -0,0 +1,21 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { mark_subtree_dynamic } from './shared/fragment.js';
+import { validate_block_not_empty, validate_opening_tag } from './shared/utils.js';
+
+/**
+ * @param {AST.IfBlock} node
+ * @param {Context} context
+ */
+export function IfBlock(node, context) {
+	validate_block_not_empty(node.consequent, context);
+	validate_block_not_empty(node.alternate, context);
+
+	if (context.state.analysis.runes) {
+		validate_opening_tag(node, context.state, node.elseif ? ':' : '#');
+	}
+
+	mark_subtree_dynamic(context.path);
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/ImportDeclaration.js

@@ -0,0 +1,31 @@
+/** @import { ImportDeclaration } from 'estree' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+
+/**
+ * @param {ImportDeclaration} node
+ * @param {Context} context
+ */
+export function ImportDeclaration(node, context) {
+	if (context.state.analysis.runes) {
+		const source = /** @type {string} */ (node.source.value);
+
+		if (source.startsWith('svelte/internal')) {
+			e.import_svelte_internal_forbidden(node);
+		}
+
+		if (source === 'svelte') {
+			for (const specifier of node.specifiers) {
+				if (specifier.type === 'ImportSpecifier') {
+					if (
+						specifier.imported.type === 'Identifier' &&
+						(specifier.imported.name === 'beforeUpdate' ||
+							specifier.imported.name === 'afterUpdate')
+					) {
+						e.runes_mode_invalid_import(specifier, specifier.imported.name);
+					}
+				}
+			}
+		}
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/KeyBlock.js

@@ -0,0 +1,20 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { mark_subtree_dynamic } from './shared/fragment.js';
+import { validate_block_not_empty, validate_opening_tag } from './shared/utils.js';
+
+/**
+ * @param {AST.KeyBlock} node
+ * @param {Context} context
+ */
+export function KeyBlock(node, context) {
+	validate_block_not_empty(node.fragment, context);
+
+	if (context.state.analysis.runes) {
+		validate_opening_tag(node, context.state, '#');
+	}
+
+	mark_subtree_dynamic(context.path);
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/LabeledStatement.js

@@ -0,0 +1,95 @@
+/** @import { Expression, LabeledStatement } from 'estree' */
+/** @import { AST, ReactiveStatement } from '#compiler' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+import { extract_identifiers, object } from '../../../utils/ast.js';
+import * as w from '../../../warnings.js';
+
+/**
+ * @param {LabeledStatement} node
+ * @param {Context} context
+ */
+export function LabeledStatement(node, context) {
+	if (node.label.name === '$') {
+		const parent = /** @type {AST.SvelteNode} */ (context.path.at(-1));
+
+		const is_reactive_statement =
+			context.state.ast_type === 'instance' && parent.type === 'Program';
+
+		if (is_reactive_statement) {
+			if (context.state.analysis.runes) {
+				e.legacy_reactive_statement_invalid(node);
+			}
+
+			// Find all dependencies of this `$: {...}` statement
+			/** @type {ReactiveStatement} */
+			const reactive_statement = {
+				assignments: new Set(),
+				dependencies: []
+			};
+
+			context.next({
+				...context.state,
+				reactive_statement,
+				function_depth: context.state.scope.function_depth + 1
+			});
+
+			// Every referenced binding becomes a dependency, unless it's on
+			// the left-hand side of an `=` assignment
+			for (const [name, nodes] of context.state.scope.references) {
+				const binding = context.state.scope.get(name);
+				if (binding === null) continue;
+
+				for (const { node, path } of nodes) {
+					/** @type {Expression} */
+					let left = node;
+
+					let i = path.length - 1;
+					let parent = /** @type {Expression} */ (path.at(i));
+					while (parent.type === 'MemberExpression') {
+						left = parent;
+						parent = /** @type {Expression} */ (path.at(--i));
+					}
+
+					if (
+						parent.type === 'AssignmentExpression' &&
+						parent.operator === '=' &&
+						parent.left === left
+					) {
+						continue;
+					}
+
+					reactive_statement.dependencies.push(binding);
+					break;
+				}
+			}
+
+			context.state.reactive_statements.set(node, reactive_statement);
+
+			if (
+				node.body.type === 'ExpressionStatement' &&
+				node.body.expression.type === 'AssignmentExpression'
+			) {
+				let ids = extract_identifiers(node.body.expression.left);
+				if (node.body.expression.left.type === 'MemberExpression') {
+					const id = object(node.body.expression.left);
+					if (id !== null) {
+						ids = [id];
+					}
+				}
+
+				for (const id of ids) {
+					const binding = context.state.scope.get(id.name);
+					if (binding?.kind === 'legacy_reactive') {
+						// TODO does this include `let double; $: double = x * 2`?
+						binding.legacy_dependencies = Array.from(reactive_statement.dependencies);
+					}
+				}
+			}
+		} else if (!context.state.analysis.runes) {
+			w.reactive_declaration_invalid_placement(node);
+		}
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/LetDirective.js

@@ -0,0 +1,24 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+
+/**
+ * @param {AST.LetDirective} node
+ * @param {Context} context
+ */
+export function LetDirective(node, context) {
+	const parent = context.path.at(-1);
+
+	if (
+		parent === undefined ||
+		(parent.type !== 'Component' &&
+			parent.type !== 'RegularElement' &&
+			parent.type !== 'SlotElement' &&
+			parent.type !== 'SvelteElement' &&
+			parent.type !== 'SvelteComponent' &&
+			parent.type !== 'SvelteSelf' &&
+			parent.type !== 'SvelteFragment')
+	) {
+		e.let_directive_invalid_placement(node);
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/MemberExpression.js

@@ -0,0 +1,30 @@
+/** @import { MemberExpression, Node } from 'estree' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+import * as w from '../../../warnings.js';
+import { object } from '../../../utils/ast.js';
+import { is_pure, is_safe_identifier } from './shared/utils.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {MemberExpression} node
+ * @param {Context} context
+ */
+export function MemberExpression(node, context) {
+	if (node.object.type === 'Identifier' && node.property.type === 'Identifier') {
+		const binding = context.state.scope.get(node.object.name);
+		if (binding?.kind === 'rest_prop' && node.property.name.startsWith('$$')) {
+			e.props_illegal_name(node.property);
+		}
+	}
+
+	if (context.state.expression && !is_pure(node, context)) {
+		context.state.expression.has_state = true;
+	}
+
+	if (!is_safe_identifier(node, context.state.scope)) {
+		context.state.analysis.needs_context = true;
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/NewExpression.js

@@ -0,0 +1,17 @@
+/** @import { NewExpression } from 'estree' */
+/** @import { Context } from '../types' */
+import * as w from '../../../warnings.js';
+
+/**
+ * @param {NewExpression} node
+ * @param {Context} context
+ */
+export function NewExpression(node, context) {
+	if (node.callee.type === 'ClassExpression' && context.state.scope.function_depth > 0) {
+		w.perf_avoid_inline_class(node);
+	}
+
+	context.state.analysis.needs_context = true;
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/OnDirective.js

@@ -0,0 +1,28 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import * as w from '../../../warnings.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.OnDirective} node
+ * @param {Context} context
+ */
+export function OnDirective(node, context) {
+	if (context.state.analysis.runes) {
+		const parent_type = context.path.at(-1)?.type;
+
+		// Don't warn on component events; these might not be under the author's control so the warning would be unactionable
+		if (parent_type === 'RegularElement' || parent_type === 'SvelteElement') {
+			w.event_directive_deprecated(node, node.name);
+		}
+	}
+
+	const parent = context.path.at(-1);
+	if (parent?.type === 'SvelteElement' || parent?.type === 'RegularElement') {
+		context.state.analysis.event_directive_node ??= node;
+	}
+
+	mark_subtree_dynamic(context.path);
+
+	context.next({ ...context.state, expression: node.metadata.expression });
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/RegularElement.js

@@ -0,0 +1,195 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { is_mathml, is_svg, is_void } from '../../../../utils.js';
+import {
+	is_tag_valid_with_ancestor,
+	is_tag_valid_with_parent
+} from '../../../../html-tree-validation.js';
+import * as e from '../../../errors.js';
+import * as w from '../../../warnings.js';
+import { create_attribute, is_custom_element_node } from '../../nodes.js';
+import { regex_starts_with_newline } from '../../patterns.js';
+import { check_element } from './shared/a11y.js';
+import { validate_element } from './shared/element.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.RegularElement} node
+ * @param {Context} context
+ */
+export function RegularElement(node, context) {
+	validate_element(node, context);
+	check_element(node, context);
+
+	node.metadata.path = [...context.path];
+	context.state.analysis.elements.push(node);
+
+	// Special case: Move the children of <textarea> into a value attribute if they are dynamic
+	if (node.name === 'textarea' && node.fragment.nodes.length > 0) {
+		for (const attribute of node.attributes) {
+			if (attribute.type === 'Attribute' && attribute.name === 'value') {
+				e.textarea_invalid_content(node);
+			}
+		}
+
+		if (node.fragment.nodes.length > 1 || node.fragment.nodes[0].type !== 'Text') {
+			const first = node.fragment.nodes[0];
+			if (first.type === 'Text') {
+				// The leading newline character needs to be stripped because of a qirk:
+				// It is ignored by browsers if the tag and its contents are set through
+				// innerHTML, but we're now setting it through the value property at which
+				// point it is _not_ ignored, so we need to strip it ourselves.
+				// see https://html.spec.whatwg.org/multipage/syntax.html#element-restrictions
+				// see https://html.spec.whatwg.org/multipage/grouping-content.html#the-pre-element
+				first.data = first.data.replace(regex_starts_with_newline, '');
+				first.raw = first.raw.replace(regex_starts_with_newline, '');
+			}
+
+			node.attributes.push(
+				create_attribute(
+					'value',
+					/** @type {AST.Text} */ (node.fragment.nodes.at(0)).start,
+					/** @type {AST.Text} */ (node.fragment.nodes.at(-1)).end,
+					// @ts-ignore
+					node.fragment.nodes
+				)
+			);
+
+			node.fragment.nodes = [];
+		}
+	}
+
+	// Special case: single expression tag child of option element -> add "fake" attribute
+	// to ensure that value types are the same (else for example numbers would be strings)
+	if (
+		node.name === 'option' &&
+		node.fragment.nodes?.length === 1 &&
+		node.fragment.nodes[0].type === 'ExpressionTag' &&
+		!node.attributes.some(
+			(attribute) => attribute.type === 'Attribute' && attribute.name === 'value'
+		)
+	) {
+		const child = node.fragment.nodes[0];
+		node.attributes.push(create_attribute('value', child.start, child.end, [child]));
+	}
+
+	const binding = context.state.scope.get(node.name);
+	if (
+		binding !== null &&
+		binding.declaration_kind === 'import' &&
+		binding.references.length === 0
+	) {
+		w.component_name_lowercase(node, node.name);
+	}
+
+	node.metadata.has_spread = node.attributes.some(
+		(attribute) => attribute.type === 'SpreadAttribute'
+	);
+
+	const is_svg_element = () => {
+		if (is_svg(node.name)) {
+			return true;
+		}
+
+		if (node.name === 'a' || node.name === 'title') {
+			let i = context.path.length;
+
+			while (i--) {
+				const ancestor = context.path[i];
+				if (ancestor.type === 'RegularElement') {
+					return ancestor.metadata.svg;
+				}
+			}
+		}
+
+		return false;
+	};
+
+	node.metadata.svg = is_svg_element();
+	node.metadata.mathml = is_mathml(node.name);
+
+	if (is_custom_element_node(node) && node.attributes.length > 0) {
+		// we're setting all attributes on custom elements through properties
+		mark_subtree_dynamic(context.path);
+	}
+
+	if (context.state.parent_element) {
+		let past_parent = false;
+		let only_warn = false;
+		const ancestors = [context.state.parent_element];
+
+		for (let i = context.path.length - 1; i >= 0; i--) {
+			const ancestor = context.path[i];
+
+			if (
+				ancestor.type === 'IfBlock' ||
+				ancestor.type === 'EachBlock' ||
+				ancestor.type === 'AwaitBlock' ||
+				ancestor.type === 'KeyBlock'
+			) {
+				// We're creating a separate template string inside blocks, which means client-side this would work
+				only_warn = true;
+			}
+
+			if (!past_parent) {
+				if (ancestor.type === 'RegularElement' && ancestor.name === context.state.parent_element) {
+					const message = is_tag_valid_with_parent(node.name, context.state.parent_element);
+					if (message) {
+						if (only_warn) {
+							w.node_invalid_placement_ssr(node, message);
+						} else {
+							e.node_invalid_placement(node, message);
+						}
+					}
+
+					past_parent = true;
+				}
+			} else if (ancestor.type === 'RegularElement') {
+				ancestors.push(ancestor.name);
+
+				const message = is_tag_valid_with_ancestor(node.name, ancestors);
+				if (message) {
+					if (only_warn) {
+						w.node_invalid_placement_ssr(node, message);
+					} else {
+						e.node_invalid_placement(node, message);
+					}
+				}
+			} else if (
+				ancestor.type === 'Component' ||
+				ancestor.type === 'SvelteComponent' ||
+				ancestor.type === 'SvelteElement' ||
+				ancestor.type === 'SvelteSelf' ||
+				ancestor.type === 'SnippetBlock'
+			) {
+				break;
+			}
+		}
+	}
+
+	// Strip off any namespace from the beginning of the node name.
+	const node_name = node.name.replace(/[a-zA-Z-]*:/g, '');
+
+	if (
+		context.state.analysis.source[node.end - 2] === '/' &&
+		!is_void(node_name) &&
+		!is_svg(node_name)
+	) {
+		w.element_invalid_self_closing_tag(node, node.name);
+	}
+
+	context.next({ ...context.state, parent_element: node.name });
+
+	// Special case: <a> tags are valid in both the SVG and HTML namespace.
+	// If there's no parent, look downwards to see if it's the parent of a SVG or HTML element.
+	if (node.name === 'a' && !context.state.parent_element) {
+		for (const child of node.fragment.nodes) {
+			if (child.type === 'RegularElement') {
+				if (child.metadata.svg && child.name !== 'svg') {
+					node.metadata.svg = true;
+					break;
+				}
+			}
+		}
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/RenderTag.js

@@ -0,0 +1,68 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { unwrap_optional } from '../../../utils/ast.js';
+import * as e from '../../../errors.js';
+import { validate_opening_tag } from './shared/utils.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+import { is_resolved_snippet } from './shared/snippets.js';
+import { create_expression_metadata } from '../../nodes.js';
+
+/**
+ * @param {AST.RenderTag} node
+ * @param {Context} context
+ */
+export function RenderTag(node, context) {
+	validate_opening_tag(node, context.state, '@');
+
+	node.metadata.path = [...context.path];
+
+	const expression = unwrap_optional(node.expression);
+	const callee = expression.callee;
+
+	const binding = callee.type === 'Identifier' ? context.state.scope.get(callee.name) : null;
+
+	node.metadata.dynamic = binding?.kind !== 'normal';
+
+	/**
+	 * If we can't unambiguously resolve this to a declaration, we
+	 * must assume the worst and link the render tag to every snippet
+	 */
+	let resolved = callee.type === 'Identifier' && is_resolved_snippet(binding);
+
+	if (binding?.initial?.type === 'SnippetBlock') {
+		// if this render tag unambiguously references a local snippet, our job is easy
+		node.metadata.snippets.add(binding.initial);
+	}
+
+	context.state.analysis.snippet_renderers.set(node, resolved);
+	context.state.analysis.uses_render_tags = true;
+
+	const raw_args = unwrap_optional(node.expression).arguments;
+	for (const arg of raw_args) {
+		if (arg.type === 'SpreadElement') {
+			e.render_tag_invalid_spread_argument(arg);
+		}
+	}
+
+	if (
+		callee.type === 'MemberExpression' &&
+		callee.property.type === 'Identifier' &&
+		['bind', 'apply', 'call'].includes(callee.property.name)
+	) {
+		e.render_tag_invalid_call_expression(node);
+	}
+
+	mark_subtree_dynamic(context.path);
+
+	context.visit(callee);
+
+	for (const arg of expression.arguments) {
+		const metadata = create_expression_metadata();
+		node.metadata.arguments.push(metadata);
+
+		context.visit(arg, {
+			...context.state,
+			expression: metadata
+		});
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SlotElement.js

@@ -0,0 +1,42 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { is_text_attribute } from '../../../utils/ast.js';
+import * as e from '../../../errors.js';
+import * as w from '../../../warnings.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.SlotElement} node
+ * @param {Context} context
+ */
+export function SlotElement(node, context) {
+	if (context.state.analysis.runes && !context.state.analysis.custom_element) {
+		w.slot_element_deprecated(node);
+	}
+
+	mark_subtree_dynamic(context.path);
+
+	/** @type {string} */
+	let name = 'default';
+
+	for (const attribute of node.attributes) {
+		if (attribute.type === 'Attribute') {
+			if (attribute.name === 'name') {
+				if (!is_text_attribute(attribute)) {
+					e.slot_element_invalid_name(attribute);
+				}
+
+				name = attribute.value[0].data;
+				if (name === 'default') {
+					e.slot_element_invalid_name_default(attribute);
+				}
+			}
+		} else if (attribute.type !== 'SpreadAttribute' && attribute.type !== 'LetDirective') {
+			e.slot_element_invalid_attribute(attribute);
+		}
+	}
+
+	context.state.analysis.slot_names.set(name, node);
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SnippetBlock.js

@@ -0,0 +1,113 @@
+/** @import { AST, Binding } from '#compiler' */
+/** @import { Scope } from '../../scope' */
+/** @import { Context } from '../types' */
+import { validate_block_not_empty, validate_opening_tag } from './shared/utils.js';
+import * as e from '../../../errors.js';
+
+/**
+ * @param {AST.SnippetBlock} node
+ * @param {Context} context
+ */
+export function SnippetBlock(node, context) {
+	context.state.analysis.snippets.add(node);
+
+	validate_block_not_empty(node.body, context);
+
+	if (context.state.analysis.runes) {
+		validate_opening_tag(node, context.state, '#');
+	}
+
+	for (const arg of node.parameters) {
+		if (arg.type === 'RestElement') {
+			e.snippet_invalid_rest_parameter(arg);
+		}
+	}
+
+	context.next({ ...context.state, parent_element: null });
+
+	const can_hoist =
+		context.path.length === 1 &&
+		context.path[0].type === 'Fragment' &&
+		can_hoist_snippet(context.state.scope, context.state.scopes);
+
+	const name = node.expression.name;
+
+	if (can_hoist) {
+		const binding = /** @type {Binding} */ (context.state.scope.get(name));
+		context.state.analysis.module.scope.declarations.set(name, binding);
+	} else {
+		const undefined_export = context.state.analysis.undefined_exports.get(name);
+		if (undefined_export) {
+			e.snippet_invalid_export(undefined_export);
+		}
+	}
+
+	node.metadata.can_hoist = can_hoist;
+
+	const { path } = context;
+	const parent = path.at(-2);
+	if (!parent) return;
+
+	if (
+		parent.type === 'Component' &&
+		parent.attributes.some(
+			(attribute) =>
+				(attribute.type === 'Attribute' || attribute.type === 'BindDirective') &&
+				attribute.name === node.expression.name
+		)
+	) {
+		e.snippet_shadowing_prop(node, node.expression.name);
+	}
+
+	if (node.expression.name !== 'children') return;
+
+	if (
+		parent.type === 'Component' ||
+		parent.type === 'SvelteComponent' ||
+		parent.type === 'SvelteSelf'
+	) {
+		if (
+			parent.fragment.nodes.some(
+				(node) =>
+					node.type !== 'SnippetBlock' &&
+					(node.type !== 'Text' || node.data.trim()) &&
+					node.type !== 'Comment'
+			)
+		) {
+			e.snippet_conflict(node);
+		}
+	}
+}
+
+/**
+ * @param {Map<AST.SvelteNode, Scope>} scopes
+ * @param {Scope} scope
+ */
+function can_hoist_snippet(scope, scopes, visited = new Set()) {
+	for (const [reference] of scope.references) {
+		const binding = scope.get(reference);
+
+		if (!binding || binding.scope.function_depth === 0) {
+			continue;
+		}
+
+		// ignore bindings declared inside the snippet (e.g. the snippet's own parameters)
+		if (binding.scope.function_depth >= scope.function_depth) {
+			continue;
+		}
+
+		if (binding.initial?.type === 'SnippetBlock') {
+			if (visited.has(binding)) continue;
+			visited.add(binding);
+			const snippet_scope = /** @type {Scope} */ (scopes.get(binding.initial));
+
+			if (can_hoist_snippet(snippet_scope, scopes, visited)) {
+				continue;
+			}
+		}
+
+		return false;
+	}
+
+	return true;
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SpreadAttribute.js

@@ -0,0 +1,13 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.SpreadAttribute} node
+ * @param {Context} context
+ */
+export function SpreadAttribute(node, context) {
+	mark_subtree_dynamic(context.path);
+	context.next({ ...context.state, expression: node.metadata.expression });
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SpreadElement.js

@@ -0,0 +1,16 @@
+/** @import { SpreadElement } from 'estree' */
+/** @import { Context } from '../types' */
+
+/**
+ * @param {SpreadElement} node
+ * @param {Context} context
+ */
+export function SpreadElement(node, context) {
+	if (context.state.expression) {
+		// treat e.g. `[...x]` the same as `[...x.values()]`
+		context.state.expression.has_call = true;
+		context.state.expression.has_state = true;
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/StyleDirective.js

@@ -0,0 +1,37 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+import { get_attribute_chunks } from '../../../utils/ast.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.StyleDirective} node
+ * @param {Context} context
+ */
+export function StyleDirective(node, context) {
+	if (node.modifiers.length > 1 || (node.modifiers.length && node.modifiers[0] !== 'important')) {
+		e.style_directive_invalid_modifier(node);
+	}
+
+	mark_subtree_dynamic(context.path);
+
+	if (node.value === true) {
+		// get the binding for node.name and change the binding to state
+		let binding = context.state.scope.get(node.name);
+
+		if (binding) {
+			if (binding.kind !== 'normal') {
+				node.metadata.expression.has_state = true;
+			}
+		}
+	} else {
+		context.next();
+
+		for (const chunk of get_attribute_chunks(node.value)) {
+			if (chunk.type !== 'ExpressionTag') continue;
+
+			node.metadata.expression.has_state ||= chunk.metadata.expression.has_state;
+			node.metadata.expression.has_call ||= chunk.metadata.expression.has_call;
+		}
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SvelteBody.js

@@ -0,0 +1,22 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+import { is_event_attribute } from '../../../utils/ast.js';
+import { disallow_children } from './shared/special-element.js';
+
+/**
+ * @param {AST.SvelteBody} node
+ * @param {Context} context
+ */
+export function SvelteBody(node, context) {
+	disallow_children(node);
+	for (const attribute of node.attributes) {
+		if (
+			attribute.type === 'SpreadAttribute' ||
+			(attribute.type === 'Attribute' && !is_event_attribute(attribute))
+		) {
+			e.svelte_body_illegal_attribute(attribute);
+		}
+	}
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SvelteBoundary.js

@@ -0,0 +1,27 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+
+const valid = ['onerror', 'failed'];
+
+/**
+ * @param {AST.SvelteBoundary} node
+ * @param {Context} context
+ */
+export function SvelteBoundary(node, context) {
+	for (const attribute of node.attributes) {
+		if (attribute.type !== 'Attribute' || !valid.includes(attribute.name)) {
+			e.svelte_boundary_invalid_attribute(attribute);
+		}
+
+		if (
+			attribute.value === true ||
+			(Array.isArray(attribute.value) &&
+				(attribute.value.length !== 1 || attribute.value[0].type !== 'ExpressionTag'))
+		) {
+			e.svelte_boundary_invalid_attribute_value(attribute);
+		}
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SvelteComponent.js

@@ -0,0 +1,18 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import * as w from '../../../warnings.js';
+import { visit_component } from './shared/component.js';
+
+/**
+ * @param {AST.SvelteComponent} node
+ * @param {Context} context
+ */
+export function SvelteComponent(node, context) {
+	if (context.state.analysis.runes) {
+		w.svelte_component_deprecated(node);
+	}
+
+	context.visit(node.expression);
+
+	visit_component(node, context);
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SvelteDocument.js

@@ -0,0 +1,24 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { disallow_children } from './shared/special-element.js';
+import * as e from '../../../errors.js';
+import { is_event_attribute } from '../../../utils/ast.js';
+
+/**
+ * @param {AST.SvelteDocument} node
+ * @param {Context} context
+ */
+export function SvelteDocument(node, context) {
+	disallow_children(node);
+
+	for (const attribute of node.attributes) {
+		if (
+			attribute.type === 'SpreadAttribute' ||
+			(attribute.type === 'Attribute' && !is_event_attribute(attribute))
+		) {
+			e.illegal_element_attribute(attribute, 'svelte:document');
+		}
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SvelteElement.js

@@ -0,0 +1,66 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { NAMESPACE_MATHML, NAMESPACE_SVG } from '../../../../constants.js';
+import { is_text_attribute } from '../../../utils/ast.js';
+import { check_element } from './shared/a11y.js';
+import { validate_element } from './shared/element.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.SvelteElement} node
+ * @param {Context} context
+ */
+export function SvelteElement(node, context) {
+	validate_element(node, context);
+	check_element(node, context);
+
+	node.metadata.path = [...context.path];
+	context.state.analysis.elements.push(node);
+
+	const xmlns = /** @type {AST.Attribute & { value: [AST.Text] } | undefined} */ (
+		node.attributes.find(
+			(a) => a.type === 'Attribute' && a.name === 'xmlns' && is_text_attribute(a)
+		)
+	);
+
+	if (xmlns) {
+		node.metadata.svg = xmlns.value[0].data === NAMESPACE_SVG;
+		node.metadata.mathml = xmlns.value[0].data === NAMESPACE_MATHML;
+	} else {
+		let i = context.path.length;
+		while (i--) {
+			const ancestor = context.path[i];
+
+			if (
+				ancestor.type === 'Component' ||
+				ancestor.type === 'SvelteComponent' ||
+				ancestor.type === 'SvelteFragment' ||
+				ancestor.type === 'SnippetBlock' ||
+				i === 0
+			) {
+				// Root element, or inside a slot or a snippet -> this resets the namespace, so assume the component namespace
+				node.metadata.svg = context.state.options.namespace === 'svg';
+				node.metadata.mathml = context.state.options.namespace === 'mathml';
+				break;
+			}
+
+			if (ancestor.type === 'SvelteElement' || ancestor.type === 'RegularElement') {
+				node.metadata.svg =
+					ancestor.type === 'RegularElement' && ancestor.name === 'foreignObject'
+						? false
+						: ancestor.metadata.svg;
+
+				node.metadata.mathml =
+					ancestor.type === 'RegularElement' && ancestor.name === 'foreignObject'
+						? false
+						: ancestor.metadata.mathml;
+
+				break;
+			}
+		}
+	}
+
+	mark_subtree_dynamic(context.path);
+
+	context.next({ ...context.state, parent_element: null });
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SvelteFragment.js

@@ -0,0 +1,27 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+import { validate_slot_attribute } from './shared/attribute.js';
+
+/**
+ * @param {AST.SvelteFragment} node
+ * @param {Context} context
+ */
+export function SvelteFragment(node, context) {
+	const parent = context.path.at(-2);
+	if (parent?.type !== 'Component' && parent?.type !== 'SvelteComponent') {
+		e.svelte_fragment_invalid_placement(node);
+	}
+
+	for (const attribute of node.attributes) {
+		if (attribute.type === 'Attribute') {
+			if (attribute.name === 'slot') {
+				validate_slot_attribute(context, attribute);
+			}
+		} else if (attribute.type !== 'LetDirective') {
+			e.svelte_fragment_invalid_attribute(attribute);
+		}
+	}
+
+	context.next({ ...context.state, parent_element: null });
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SvelteHead.js

@@ -0,0 +1,18 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.SvelteHead} node
+ * @param {Context} context
+ */
+export function SvelteHead(node, context) {
+	for (const attribute of node.attributes) {
+		e.svelte_head_illegal_attribute(attribute);
+	}
+
+	mark_subtree_dynamic(context.path);
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SvelteSelf.js

@@ -0,0 +1,36 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { visit_component } from './shared/component.js';
+import * as e from '../../../errors.js';
+import * as w from '../../../warnings.js';
+import { filename } from '../../../state.js';
+
+/**
+ * @param {AST.SvelteSelf} node
+ * @param {Context} context
+ */
+export function SvelteSelf(node, context) {
+	const valid = context.path.some(
+		(node) =>
+			node.type === 'IfBlock' ||
+			node.type === 'EachBlock' ||
+			node.type === 'Component' ||
+			node.type === 'SnippetBlock'
+	);
+
+	if (!valid) {
+		e.svelte_self_invalid_placement(node);
+	}
+
+	if (context.state.analysis.runes) {
+		const name = filename === '(unknown)' ? 'Self' : context.state.analysis.name;
+		const basename =
+			filename === '(unknown)'
+				? 'Self.svelte'
+				: /** @type {string} */ (filename.split(/[/\\]/).pop());
+
+		w.svelte_self_deprecated(node, name, basename);
+	}
+
+	visit_component(node, context);
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/SvelteWindow.js

@@ -0,0 +1,24 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { disallow_children } from './shared/special-element.js';
+import * as e from '../../../errors.js';
+import { is_event_attribute } from '../../../utils/ast.js';
+
+/**
+ * @param {AST.SvelteWindow} node
+ * @param {Context} context
+ */
+export function SvelteWindow(node, context) {
+	disallow_children(node);
+
+	for (const attribute of node.attributes) {
+		if (
+			attribute.type === 'SpreadAttribute' ||
+			(attribute.type === 'Attribute' && !is_event_attribute(attribute))
+		) {
+			e.illegal_element_attribute(attribute, 'svelte:window');
+		}
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/TaggedTemplateExpression.js

@@ -0,0 +1,23 @@
+/** @import { TaggedTemplateExpression, VariableDeclarator } from 'estree' */
+/** @import { Context } from '../types' */
+import { is_pure } from './shared/utils.js';
+
+/**
+ * @param {TaggedTemplateExpression} node
+ * @param {Context} context
+ */
+export function TaggedTemplateExpression(node, context) {
+	if (context.state.expression && !is_pure(node.tag, context)) {
+		context.state.expression.has_call = true;
+		context.state.expression.has_state = true;
+	}
+
+	if (node.tag.type === 'Identifier') {
+		const binding = context.state.scope.get(node.tag.name);
+
+		if (binding !== null) {
+			binding.is_called = true;
+		}
+	}
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/Text.js

@@ -0,0 +1,20 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { is_tag_valid_with_parent } from '../../../../html-tree-validation.js';
+import { regex_not_whitespace } from '../../patterns.js';
+import * as e from '../../../errors.js';
+
+/**
+ * @param {AST.Text} node
+ * @param {Context} context
+ */
+export function Text(node, context) {
+	const in_template = context.path.at(-1)?.type === 'Fragment';
+
+	if (in_template && context.state.parent_element && regex_not_whitespace.test(node.data)) {
+		const message = is_tag_valid_with_parent('#text', context.state.parent_element);
+		if (message) {
+			e.node_invalid_placement(node, message);
+		}
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/TitleElement.js

@@ -0,0 +1,21 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import * as e from '../../../errors.js';
+
+/**
+ * @param {AST.TitleElement} node
+ * @param {Context} context
+ */
+export function TitleElement(node, context) {
+	for (const attribute of node.attributes) {
+		e.title_illegal_attribute(attribute);
+	}
+
+	for (const child of node.fragment.nodes) {
+		if (child.type !== 'Text' && child.type !== 'ExpressionTag') {
+			e.title_invalid_content(child);
+		}
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/TransitionDirective.js

@@ -0,0 +1,14 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.TransitionDirective} node
+ * @param {Context} context
+ */
+export function TransitionDirective(node, context) {
+	mark_subtree_dynamic(context.path);
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/UpdateExpression.js

@@ -0,0 +1,25 @@
+/** @import { UpdateExpression } from 'estree' */
+/** @import { Context } from '../types' */
+import { object } from '../../../utils/ast.js';
+import { validate_assignment } from './shared/utils.js';
+
+/**
+ * @param {UpdateExpression} node
+ * @param {Context} context
+ */
+export function UpdateExpression(node, context) {
+	validate_assignment(node, node.argument, context.state);
+
+	if (context.state.reactive_statement) {
+		const id = node.argument.type === 'MemberExpression' ? object(node.argument) : node.argument;
+		if (id?.type === 'Identifier') {
+			const binding = context.state.scope.get(id.name);
+
+			if (binding) {
+				context.state.reactive_statement.assignments.add(binding);
+			}
+		}
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/UseDirective.js

@@ -0,0 +1,12 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../types' */
+import { mark_subtree_dynamic } from './shared/fragment.js';
+
+/**
+ * @param {AST.UseDirective} node
+ * @param {Context} context
+ */
+export function UseDirective(node, context) {
+	mark_subtree_dynamic(context.path);
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/VariableDeclarator.js

@@ -0,0 +1,120 @@
+/** @import { Expression, Identifier, Literal, VariableDeclarator } from 'estree' */
+/** @import { Binding } from '#compiler' */
+/** @import { Context } from '../types' */
+import { get_rune } from '../../scope.js';
+import { ensure_no_module_import_conflict, validate_identifier_name } from './shared/utils.js';
+import * as e from '../../../errors.js';
+import { extract_paths } from '../../../utils/ast.js';
+import { equal } from '../../../utils/assert.js';
+
+/**
+ * @param {VariableDeclarator} node
+ * @param {Context} context
+ */
+export function VariableDeclarator(node, context) {
+	ensure_no_module_import_conflict(node, context.state);
+
+	if (context.state.analysis.runes) {
+		const init = node.init;
+		const rune = get_rune(init, context.state.scope);
+		const paths = extract_paths(node.id);
+
+		for (const path of paths) {
+			validate_identifier_name(context.state.scope.get(/** @type {Identifier} */ (path.node).name));
+		}
+
+		// TODO feels like this should happen during scope creation?
+		if (
+			rune === '$state' ||
+			rune === '$state.raw' ||
+			rune === '$derived' ||
+			rune === '$derived.by' ||
+			rune === '$props'
+		) {
+			for (const path of paths) {
+				// @ts-ignore this fails in CI for some insane reason
+				const binding = /** @type {Binding} */ (context.state.scope.get(path.node.name));
+				binding.kind =
+					rune === '$state'
+						? 'state'
+						: rune === '$state.raw'
+							? 'raw_state'
+							: rune === '$derived' || rune === '$derived.by'
+								? 'derived'
+								: path.is_rest
+									? 'rest_prop'
+									: 'prop';
+			}
+		}
+
+		if (rune === '$props') {
+			if (node.id.type !== 'ObjectPattern' && node.id.type !== 'Identifier') {
+				e.props_invalid_identifier(node);
+			}
+
+			context.state.analysis.needs_props = true;
+
+			if (node.id.type === 'Identifier') {
+				const binding = /** @type {Binding} */ (context.state.scope.get(node.id.name));
+				binding.initial = null; // else would be $props()
+				binding.kind = 'rest_prop';
+			} else {
+				equal(node.id.type, 'ObjectPattern');
+
+				for (const property of node.id.properties) {
+					if (property.type !== 'Property') continue;
+
+					if (property.computed) {
+						e.props_invalid_pattern(property);
+					}
+
+					if (property.key.type === 'Identifier' && property.key.name.startsWith('$$')) {
+						e.props_illegal_name(property);
+					}
+
+					const value =
+						property.value.type === 'AssignmentPattern' ? property.value.left : property.value;
+
+					if (value.type !== 'Identifier') {
+						e.props_invalid_pattern(property);
+					}
+
+					const alias =
+						property.key.type === 'Identifier'
+							? property.key.name
+							: String(/** @type {Literal} */ (property.key).value);
+
+					let initial = property.value.type === 'AssignmentPattern' ? property.value.right : null;
+
+					const binding = /** @type {Binding} */ (context.state.scope.get(value.name));
+					binding.prop_alias = alias;
+
+					// rewire initial from $props() to the actual initial value, stripping $bindable() if necessary
+					if (
+						initial?.type === 'CallExpression' &&
+						initial.callee.type === 'Identifier' &&
+						initial.callee.name === '$bindable'
+					) {
+						binding.initial = /** @type {Expression | null} */ (initial.arguments[0] ?? null);
+						binding.kind = 'bindable_prop';
+					} else {
+						binding.initial = initial;
+					}
+				}
+			}
+		}
+	} else {
+		if (node.init?.type === 'CallExpression') {
+			const callee = node.init.callee;
+			if (
+				callee.type === 'Identifier' &&
+				(callee.name === '$state' || callee.name === '$derived' || callee.name === '$props') &&
+				context.state.scope.get(callee.name)?.kind !== 'store_sub'
+			) {
+				e.rune_invalid_usage(node.init, callee.name);
+			}
+		}
+	}
+
+	context.next();
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/shared/attribute.js

@@ -0,0 +1,125 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../../types' */
+import * as e from '../../../../errors.js';
+import { is_text_attribute } from '../../../../utils/ast.js';
+import * as w from '../../../../warnings.js';
+import { is_custom_element_node } from '../../../nodes.js';
+import { regex_only_whitespaces } from '../../../patterns.js';
+
+/**
+ * @param {AST.Attribute} attribute
+ */
+export function validate_attribute_name(attribute) {
+	if (
+		attribute.name.includes(':') &&
+		!attribute.name.startsWith('xmlns:') &&
+		!attribute.name.startsWith('xlink:') &&
+		!attribute.name.startsWith('xml:')
+	) {
+		w.attribute_illegal_colon(attribute);
+	}
+}
+
+/**
+ * @param {AST.Attribute} attribute
+ * @param {AST.ElementLike} parent
+ */
+export function validate_attribute(attribute, parent) {
+	if (
+		Array.isArray(attribute.value) &&
+		attribute.value.length === 1 &&
+		attribute.value[0].type === 'ExpressionTag' &&
+		(parent.type === 'Component' ||
+			parent.type === 'SvelteComponent' ||
+			parent.type === 'SvelteSelf' ||
+			(parent.type === 'RegularElement' && is_custom_element_node(parent)))
+	) {
+		w.attribute_quoted(attribute);
+	}
+
+	if (attribute.value === true || !Array.isArray(attribute.value) || attribute.value.length === 1) {
+		return;
+	}
+
+	const is_quoted = attribute.value.at(-1)?.end !== attribute.end;
+
+	if (!is_quoted) {
+		e.attribute_unquoted_sequence(attribute);
+	}
+}
+
+/**
+ * @param {Context} context
+ * @param {AST.Attribute} attribute
+ * @param {boolean} is_component
+ */
+export function validate_slot_attribute(context, attribute, is_component = false) {
+	const parent = context.path.at(-2);
+	let owner = undefined;
+
+	if (parent?.type === 'SnippetBlock') {
+		if (!is_text_attribute(attribute)) {
+			e.slot_attribute_invalid(attribute);
+		}
+		return;
+	}
+
+	let i = context.path.length;
+	while (i--) {
+		const ancestor = context.path[i];
+		if (
+			!owner &&
+			(ancestor.type === 'Component' ||
+				ancestor.type === 'SvelteComponent' ||
+				ancestor.type === 'SvelteSelf' ||
+				ancestor.type === 'SvelteElement' ||
+				(ancestor.type === 'RegularElement' && is_custom_element_node(ancestor)))
+		) {
+			owner = ancestor;
+		}
+	}
+
+	if (owner) {
+		if (
+			owner.type === 'Component' ||
+			owner.type === 'SvelteComponent' ||
+			owner.type === 'SvelteSelf'
+		) {
+			if (owner !== parent) {
+				if (!is_component) {
+					e.slot_attribute_invalid_placement(attribute);
+				}
+			} else {
+				if (!is_text_attribute(attribute)) {
+					e.slot_attribute_invalid(attribute);
+				}
+
+				const name = attribute.value[0].data;
+
+				if (context.state.component_slots.has(name)) {
+					e.slot_attribute_duplicate(attribute, name, owner.name);
+				}
+
+				context.state.component_slots.add(name);
+
+				if (name === 'default') {
+					for (const node of owner.fragment.nodes) {
+						if (node.type === 'Text' && regex_only_whitespaces.test(node.data)) {
+							continue;
+						}
+
+						if (node.type === 'RegularElement' || node.type === 'SvelteFragment') {
+							if (node.attributes.some((a) => a.type === 'Attribute' && a.name === 'slot')) {
+								continue;
+							}
+						}
+
+						e.slot_default_duplicate(node);
+					}
+				}
+			}
+		}
+	} else if (!is_component) {
+		e.slot_attribute_invalid_placement(attribute);
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/shared/component.js

@@ -0,0 +1,160 @@
+/** @import { AST } from '#compiler' */
+/** @import { AnalysisState, Context } from '../../types' */
+import * as e from '../../../../errors.js';
+import { get_attribute_expression, is_expression_attribute } from '../../../../utils/ast.js';
+import { determine_slot } from '../../../../utils/slot.js';
+import {
+	validate_attribute,
+	validate_attribute_name,
+	validate_slot_attribute
+} from './attribute.js';
+import { mark_subtree_dynamic } from './fragment.js';
+import { is_resolved_snippet } from './snippets.js';
+
+/**
+ * @param {AST.Component | AST.SvelteComponent | AST.SvelteSelf} node
+ * @param {Context} context
+ */
+export function visit_component(node, context) {
+	node.metadata.path = [...context.path];
+
+	// link this node to all the snippets that it could render, so that we can prune CSS correctly
+	node.metadata.snippets = new Set();
+
+	// 'resolved' means we know which snippets this component might render. if it is `false`,
+	// then `node.metadata.snippets` is populated with every locally defined snippet
+	// once analysis is complete
+	let resolved = true;
+
+	for (const attribute of node.attributes) {
+		if (attribute.type === 'SpreadAttribute' || attribute.type === 'BindDirective') {
+			resolved = false;
+			continue;
+		}
+
+		if (attribute.type !== 'Attribute' || !is_expression_attribute(attribute)) {
+			continue;
+		}
+
+		const expression = get_attribute_expression(attribute);
+
+		// given an attribute like `foo={bar}`, if `bar` resolves to an import or a prop
+		// then we know it doesn't reference a locally defined snippet. if it resolves
+		// to a `{#snippet bar()}` then we know _which_ snippet it resolves to. in all
+		// other cases, we can't know (without much more complex static analysis) which
+		// snippets the component might render, so we treat the component as unresolved
+		if (expression.type === 'Identifier') {
+			const binding = context.state.scope.get(expression.name);
+
+			resolved &&= is_resolved_snippet(binding);
+
+			if (binding?.initial?.type === 'SnippetBlock') {
+				node.metadata.snippets.add(binding.initial);
+			}
+		} else if (expression.type !== 'Literal') {
+			resolved = false;
+		}
+	}
+
+	if (resolved) {
+		for (const child of node.fragment.nodes) {
+			if (child.type === 'SnippetBlock') {
+				node.metadata.snippets.add(child);
+			}
+		}
+	}
+
+	context.state.analysis.snippet_renderers.set(node, resolved);
+
+	mark_subtree_dynamic(context.path);
+
+	for (const attribute of node.attributes) {
+		if (
+			attribute.type !== 'Attribute' &&
+			attribute.type !== 'SpreadAttribute' &&
+			attribute.type !== 'LetDirective' &&
+			attribute.type !== 'OnDirective' &&
+			attribute.type !== 'BindDirective'
+		) {
+			e.component_invalid_directive(attribute);
+		}
+
+		if (
+			attribute.type === 'OnDirective' &&
+			(attribute.modifiers.length > 1 || attribute.modifiers.some((m) => m !== 'once'))
+		) {
+			e.event_handler_invalid_component_modifier(attribute);
+		}
+
+		if (attribute.type === 'Attribute') {
+			if (context.state.analysis.runes) {
+				validate_attribute(attribute, node);
+
+				if (is_expression_attribute(attribute)) {
+					const expression = get_attribute_expression(attribute);
+					if (expression.type === 'SequenceExpression') {
+						let i = /** @type {number} */ (expression.start);
+						while (--i > 0) {
+							const char = context.state.analysis.source[i];
+							if (char === '(') break; // parenthesized sequence expressions are ok
+							if (char === '{') e.attribute_invalid_sequence_expression(expression);
+						}
+					}
+				}
+			}
+
+			validate_attribute_name(attribute);
+
+			if (attribute.name === 'slot') {
+				validate_slot_attribute(context, attribute, true);
+			}
+		}
+
+		if (attribute.type === 'BindDirective' && attribute.name !== 'this') {
+			context.state.analysis.uses_component_bindings = true;
+		}
+	}
+
+	// If the component has a slot attribute — `<Foo slot="whatever" .../>` —
+	// then `let:` directives apply to other attributes, instead of just the
+	// top-level contents of the component. Yes, this is very weird.
+	const default_state = determine_slot(node)
+		? context.state
+		: { ...context.state, scope: node.metadata.scopes.default };
+
+	for (const attribute of node.attributes) {
+		context.visit(attribute, attribute.type === 'LetDirective' ? default_state : context.state);
+	}
+
+	/** @type {AST.Comment[]} */
+	let comments = [];
+
+	/** @type {Record<string, AST.Fragment['nodes']>} */
+	const nodes = { default: [] };
+
+	for (const child of node.fragment.nodes) {
+		if (child.type === 'Comment') {
+			comments.push(child);
+			continue;
+		}
+
+		const slot_name = determine_slot(child) ?? 'default';
+		(nodes[slot_name] ??= []).push(...comments, child);
+
+		if (slot_name !== 'default') comments = [];
+	}
+
+	const component_slots = new Set();
+
+	for (const slot_name in nodes) {
+		/** @type {AnalysisState} */
+		const state = {
+			...context.state,
+			scope: node.metadata.scopes[slot_name],
+			parent_element: null,
+			component_slots
+		};
+
+		context.visit({ ...node.fragment, nodes: nodes[slot_name] }, state);
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/shared/element.js

@@ -0,0 +1,160 @@
+/** @import { AST } from '#compiler' */
+/** @import { Context } from '../../types' */
+import { get_attribute_expression, is_expression_attribute } from '../../../../utils/ast.js';
+import { regex_illegal_attribute_character } from '../../../patterns.js';
+import * as e from '../../../../errors.js';
+import * as w from '../../../../warnings.js';
+import {
+	validate_attribute,
+	validate_attribute_name,
+	validate_slot_attribute
+} from './attribute.js';
+
+const EVENT_MODIFIERS = [
+	'preventDefault',
+	'stopPropagation',
+	'stopImmediatePropagation',
+	'capture',
+	'once',
+	'passive',
+	'nonpassive',
+	'self',
+	'trusted'
+];
+
+/**
+ * @param {AST.RegularElement | AST.SvelteElement} node
+ * @param {Context} context
+ */
+export function validate_element(node, context) {
+	let has_animate_directive = false;
+
+	/** @type {AST.TransitionDirective | null} */
+	let in_transition = null;
+
+	/** @type {AST.TransitionDirective | null} */
+	let out_transition = null;
+
+	for (const attribute of node.attributes) {
+		if (attribute.type === 'Attribute') {
+			const is_expression = is_expression_attribute(attribute);
+
+			if (context.state.analysis.runes) {
+				validate_attribute(attribute, node);
+
+				if (is_expression) {
+					const expression = get_attribute_expression(attribute);
+					if (expression.type === 'SequenceExpression') {
+						let i = /** @type {number} */ (expression.start);
+						while (--i > 0) {
+							const char = context.state.analysis.source[i];
+							if (char === '(') break; // parenthesized sequence expressions are ok
+							if (char === '{') e.attribute_invalid_sequence_expression(expression);
+						}
+					}
+				}
+			}
+
+			if (regex_illegal_attribute_character.test(attribute.name)) {
+				e.attribute_invalid_name(attribute, attribute.name);
+			}
+
+			if (attribute.name.startsWith('on') && attribute.name.length > 2) {
+				if (!is_expression) {
+					e.attribute_invalid_event_handler(attribute);
+				}
+
+				const value = get_attribute_expression(attribute);
+				if (
+					value.type === 'Identifier' &&
+					value.name === attribute.name &&
+					!context.state.scope.get(value.name)
+				) {
+					w.attribute_global_event_reference(attribute, attribute.name);
+				}
+			}
+
+			if (attribute.name === 'slot') {
+				/** @type {AST.RegularElement | AST.SvelteElement | AST.Component | AST.SvelteComponent | AST.SvelteSelf | undefined} */
+				validate_slot_attribute(context, attribute);
+			}
+
+			if (attribute.name === 'is') {
+				w.attribute_avoid_is(attribute);
+			}
+
+			const correct_name = react_attributes.get(attribute.name);
+			if (correct_name) {
+				w.attribute_invalid_property_name(attribute, attribute.name, correct_name);
+			}
+
+			validate_attribute_name(attribute);
+		} else if (attribute.type === 'AnimateDirective') {
+			const parent = context.path.at(-2);
+			if (parent?.type !== 'EachBlock') {
+				e.animation_invalid_placement(attribute);
+			} else if (!parent.key) {
+				e.animation_missing_key(attribute);
+			} else if (
+				parent.body.nodes.filter(
+					(n) =>
+						n.type !== 'Comment' &&
+						n.type !== 'ConstTag' &&
+						(n.type !== 'Text' || n.data.trim() !== '')
+				).length > 1
+			) {
+				e.animation_invalid_placement(attribute);
+			}
+
+			if (has_animate_directive) {
+				e.animation_duplicate(attribute);
+			} else {
+				has_animate_directive = true;
+			}
+		} else if (attribute.type === 'TransitionDirective') {
+			const existing = /** @type {AST.TransitionDirective | null} */ (
+				(attribute.intro && in_transition) || (attribute.outro && out_transition)
+			);
+
+			if (existing) {
+				const a = existing.intro ? (existing.outro ? 'transition' : 'in') : 'out';
+				const b = attribute.intro ? (attribute.outro ? 'transition' : 'in') : 'out';
+
+				if (a === b) {
+					e.transition_duplicate(attribute, a);
+				} else {
+					e.transition_conflict(attribute, a, b);
+				}
+			}
+
+			if (attribute.intro) in_transition = attribute;
+			if (attribute.outro) out_transition = attribute;
+		} else if (attribute.type === 'OnDirective') {
+			let has_passive_modifier = false;
+			let conflicting_passive_modifier = '';
+			for (const modifier of attribute.modifiers) {
+				if (!EVENT_MODIFIERS.includes(modifier)) {
+					const list = `${EVENT_MODIFIERS.slice(0, -1).join(', ')} or ${EVENT_MODIFIERS.at(-1)}`;
+					e.event_handler_invalid_modifier(attribute, list);
+				}
+				if (modifier === 'passive') {
+					has_passive_modifier = true;
+				} else if (modifier === 'nonpassive' || modifier === 'preventDefault') {
+					conflicting_passive_modifier = modifier;
+				}
+				if (has_passive_modifier && conflicting_passive_modifier) {
+					e.event_handler_invalid_modifier_combination(
+						attribute,
+						'passive',
+						conflicting_passive_modifier
+					);
+				}
+			}
+		}
+	}
+}
+
+const react_attributes = new Map([
+	['className', 'class'],
+	['htmlFor', 'for']
+]);

node_modules/svelte/src/compiler/phases/2-analyze/visitors/shared/fragment.js

@@ -0,0 +1,15 @@
+/** @import { AST } from '#compiler' */
+
+/**
+ * @param {AST.SvelteNode[]} path
+ */
+export function mark_subtree_dynamic(path) {
+	let i = path.length;
+	while (i--) {
+		const node = path[i];
+		if (node.type === 'Fragment') {
+			if (node.metadata.dynamic) return;
+			node.metadata.dynamic = true;
+		}
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/shared/function.js

@@ -0,0 +1,21 @@
+/** @import { ArrowFunctionExpression, FunctionDeclaration, FunctionExpression } from 'estree' */
+/** @import { Context } from '../../types' */
+
+/**
+ * @param {ArrowFunctionExpression | FunctionExpression | FunctionDeclaration} node
+ * @param {Context} context
+ */
+export function visit_function(node, context) {
+	// TODO retire this in favour of a more general solution based on bindings
+	node.metadata = {
+		hoisted: false,
+		hoisted_params: [],
+		scope: context.state.scope
+	};
+
+	context.next({
+		...context.state,
+		function_depth: context.state.function_depth + 1,
+		expression: null
+	});
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/shared/snippets.js

@@ -0,0 +1,17 @@
+/** @import { Binding } from '#compiler' */
+
+/**
+ * Returns `true` if a binding unambiguously resolves to a specific
+ * snippet declaration, or is external to the current component
+ * @param {Binding | null} binding
+ */
+export function is_resolved_snippet(binding) {
+	return (
+		!binding ||
+		binding.declaration_kind === 'import' ||
+		binding.kind === 'prop' ||
+		binding.kind === 'rest_prop' ||
+		binding.kind === 'bindable_prop' ||
+		binding?.initial?.type === 'SnippetBlock'
+	);
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/shared/special-element.js

@@ -0,0 +1,16 @@
+/** @import { AST } from '#compiler' */
+import * as e from '../../../../errors.js';
+
+/**
+ * @param {AST.SvelteBody | AST.SvelteDocument | AST.SvelteOptionsRaw | AST.SvelteWindow} node
+ */
+export function disallow_children(node) {
+	const { nodes } = node.fragment;
+
+	if (nodes.length > 0) {
+		const first = nodes[0];
+		const last = nodes[nodes.length - 1];
+
+		e.svelte_meta_invalid_content({ start: first.start, end: last.end }, node.name);
+	}
+}

node_modules/svelte/src/compiler/phases/2-analyze/visitors/shared/utils.js

@@ -0,0 +1,284 @@
+/** @import { AssignmentExpression, Expression, Literal, Node, Pattern, PrivateIdentifier, Super, UpdateExpression, VariableDeclarator } from 'estree' */
+/** @import { AST, Binding } from '#compiler' */
+/** @import { AnalysisState, Context } from '../../types' */
+/** @import { Scope } from '../../../scope' */
+/** @import { NodeLike } from '../../../../errors.js' */
+import * as e from '../../../../errors.js';
+import { extract_identifiers } from '../../../../utils/ast.js';
+import * as w from '../../../../warnings.js';
+import * as b from '../../../../utils/builders.js';
+import { get_rune } from '../../../scope.js';
+
+/**
+ * @param {AssignmentExpression | UpdateExpression} node
+ * @param {Pattern | Expression} argument
+ * @param {AnalysisState} state
+ */
+export function validate_assignment(node, argument, state) {
+	validate_no_const_assignment(node, argument, state.scope, false);
+
+	if (argument.type === 'Identifier') {
+		const binding = state.scope.get(argument.name);
+
+		if (state.analysis.runes) {
+			if (binding?.kind === 'derived') {
+				e.constant_assignment(node, 'derived state');
+			}
+
+			if (binding?.kind === 'each') {
+				e.each_item_invalid_assignment(node);
+			}
+		}
+
+		if (binding?.kind === 'snippet') {
+			e.snippet_parameter_assignment(node);
+		}
+	}
+
+	let object = /** @type {Expression | Super} */ (argument);
+
+	/** @type {Expression | PrivateIdentifier | null} */
+	let property = null;
+
+	while (object.type === 'MemberExpression') {
+		property = object.property;
+		object = object.object;
+	}
+
+	if (object.type === 'ThisExpression' && property?.type === 'PrivateIdentifier') {
+		if (state.private_derived_state.includes(property.name)) {
+			e.constant_assignment(node, 'derived state');
+		}
+	}
+}
+
+/**
+ * @param {NodeLike} node
+ * @param {Pattern | Expression} argument
+ * @param {Scope} scope
+ * @param {boolean} is_binding
+ */
+export function validate_no_const_assignment(node, argument, scope, is_binding) {
+	if (argument.type === 'ArrayPattern') {
+		for (const element of argument.elements) {
+			if (element) {
+				validate_no_const_assignment(node, element, scope, is_binding);
+			}
+		}
+	} else if (argument.type === 'ObjectPattern') {
+		for (const element of argument.properties) {
+			if (element.type === 'Property') {
+				validate_no_const_assignment(node, element.value, scope, is_binding);
+			}
+		}
+	} else if (argument.type === 'Identifier') {
+		const binding = scope.get(argument.name);
+		if (
+			binding?.kind === 'derived' ||
+			binding?.declaration_kind === 'import' ||
+			(binding?.declaration_kind === 'const' && binding.kind !== 'each')
+		) {
+			// e.invalid_const_assignment(
+			// 	node,
+			// 	is_binding,
+			// 	// This takes advantage of the fact that we don't assign initial for let directives and then/catch variables.
+			// 	// If we start doing that, we need another property on the binding to differentiate, or give up on the more precise error message.
+			// 	binding.kind !== 'state' &&
+			// 		binding.kind !== 'raw_state' &&
+			// 		(binding.kind !== 'normal' || !binding.initial)
+			// );
+
+			// TODO have a more specific error message for assignments to things like `{:then foo}`
+			const thing =
+				binding.declaration_kind === 'import'
+					? 'import'
+					: binding.kind === 'derived'
+						? 'derived state'
+						: 'constant';
+
+			if (is_binding) {
+				e.constant_binding(node, thing);
+			} else {
+				e.constant_assignment(node, thing);
+			}
+		}
+	}
+}
+
+/**
+ * Validates that the opening of a control flow block is `{` immediately followed by the expected character.
+ * In legacy mode whitespace is allowed inbetween. TODO remove once legacy mode is gone and move this into parser instead.
+ * @param {{start: number; end: number}} node
+ * @param {AnalysisState} state
+ * @param {string} expected
+ */
+export function validate_opening_tag(node, state, expected) {
+	if (state.analysis.source[node.start + 1] !== expected) {
+		// avoid a sea of red and only mark the first few characters
+		e.block_unexpected_character({ start: node.start, end: node.start + 5 }, expected);
+	}
+}
+
+/**
+ * @param {AST.Fragment | null | undefined} node
+ * @param {Context} context
+ */
+export function validate_block_not_empty(node, context) {
+	if (!node) return;
+	// Assumption: If the block has zero elements, someone's in the middle of typing it out,
+	// so don't warn in that case because it would be distracting.
+	if (node.nodes.length === 1 && node.nodes[0].type === 'Text' && !node.nodes[0].raw.trim()) {
+		w.block_empty(node.nodes[0]);
+	}
+}
+
+/**
+ * @param {VariableDeclarator} node
+ * @param {AnalysisState} state
+ */
+export function ensure_no_module_import_conflict(node, state) {
+	const ids = extract_identifiers(node.id);
+	for (const id of ids) {
+		if (
+			state.ast_type === 'instance' &&
+			state.scope === state.analysis.instance.scope &&
+			state.analysis.module.scope.get(id.name)?.declaration_kind === 'import'
+		) {
+			// TODO fix the message here
+			e.declaration_duplicate_module_import(node.id);
+		}
+	}
+}
+
+/**
+ * A 'safe' identifier means that the `foo` in `foo.bar` or `foo()` will not
+ * call functions that require component context to exist
+ * @param {Expression | Super} expression
+ * @param {Scope} scope
+ */
+export function is_safe_identifier(expression, scope) {
+	let node = expression;
+	while (node.type === 'MemberExpression') node = node.object;
+
+	if (node.type !== 'Identifier') return false;
+
+	const binding = scope.get(node.name);
+	if (!binding) return true;
+
+	if (binding.kind === 'store_sub') {
+		return is_safe_identifier({ name: node.name.slice(1), type: 'Identifier' }, scope);
+	}
+
+	return (
+		binding.declaration_kind !== 'import' &&
+		binding.kind !== 'prop' &&
+		binding.kind !== 'bindable_prop' &&
+		binding.kind !== 'rest_prop'
+	);
+}
+
+/**
+ * @param {Expression | Literal | Super} node
+ * @param {Context} context
+ * @returns {boolean}
+ */
+export function is_pure(node, context) {
+	if (node.type === 'Literal') {
+		return true;
+	}
+
+	if (node.type === 'CallExpression') {
+		if (!is_pure(node.callee, context)) {
+			return false;
+		}
+		for (let arg of node.arguments) {
+			if (!is_pure(arg.type === 'SpreadElement' ? arg.argument : arg, context)) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	if (node.type !== 'Identifier' && node.type !== 'MemberExpression') {
+		return false;
+	}
+
+	if (get_rune(b.call(node), context.state.scope) === '$effect.tracking') {
+		return false;
+	}
+
+	/** @type {Expression | Super | null} */
+	let left = node;
+	while (left.type === 'MemberExpression') {
+		left = left.object;
+	}
+
+	if (!left) return false;
+
+	if (left.type === 'Identifier') {
+		const binding = context.state.scope.get(left.name);
+		if (binding === null) return true; // globals are assumed to be safe
+	} else if (is_pure(left, context)) {
+		return true;
+	}
+
+	// TODO add more cases (safe Svelte imports, etc)
+	return false;
+}
+
+/**
+ * Checks if the name is valid, which it is when it's not starting with (or is) a dollar sign or if it's a function parameter.
+ * The second argument is the depth of the scope, which is there for backwards compatibility reasons: In Svelte 4, you
+ * were allowed to define `$`-prefixed variables anywhere below the top level of components. Once legacy mode is gone, this
+ * argument can be removed / the call sites adjusted accordingly.
+ * @param {Binding | null} binding
+ * @param {number | undefined} [function_depth]
+ */
+export function validate_identifier_name(binding, function_depth) {
+	if (!binding) return;
+
+	const declaration_kind = binding.declaration_kind;
+
+	if (
+		declaration_kind !== 'synthetic' &&
+		declaration_kind !== 'param' &&
+		declaration_kind !== 'rest_param' &&
+		(!function_depth || function_depth <= 1)
+	) {
+		const node = binding.node;
+
+		if (node.name === '$') {
+			e.dollar_binding_invalid(node);
+		} else if (
+			node.name.startsWith('$') &&
+			// import type { $Type } from "" - these are normally already filtered out,
+			// but for the migration they aren't, and throwing here is preventing the migration to complete
+			// TODO -> once migration script is gone we can remove this check
+			!(
+				binding.initial?.type === 'ImportDeclaration' &&
+				/** @type {any} */ (binding.initial).importKind === 'type'
+			)
+		) {
+			e.dollar_prefix_invalid(node);
+		}
+	}
+}
+
+/**
+ * Checks that the exported name is not a derived or reassigned state variable.
+ * @param {Node} node
+ * @param {Scope} scope
+ * @param {string} name
+ */
+export function validate_export(node, scope, name) {
+	const binding = scope.get(name);
+	if (!binding) return;
+
+	if (binding.kind === 'derived') {
+		e.derived_invalid_export(node);
+	}
+
+	if ((binding.kind === 'state' || binding.kind === 'raw_state') && binding.reassigned) {
+		e.state_invalid_export(node);
+	}
+}

node_modules/svelte/src/compiler/phases/3-transform/client/transform-client.js

@@ -0,0 +1,682 @@
+/** @import * as ESTree from 'estree' */
+/** @import { AST, ValidatedCompileOptions, ValidatedModuleCompileOptions } from '#compiler' */
+/** @import { ComponentAnalysis, Analysis } from '../../types' */
+/** @import { Visitors, ComponentClientTransformState, ClientTransformState } from './types' */
+import { walk } from 'zimmerframe';
+import * as b from '../../../utils/builders.js';
+import { build_getter, is_state_source } from './utils.js';
+import { render_stylesheet } from '../css/index.js';
+import { dev, filename } from '../../../state.js';
+import { AnimateDirective } from './visitors/AnimateDirective.js';
+import { ArrowFunctionExpression } from './visitors/ArrowFunctionExpression.js';
+import { AssignmentExpression } from './visitors/AssignmentExpression.js';
+import { Attribute } from './visitors/Attribute.js';
+import { AwaitBlock } from './visitors/AwaitBlock.js';
+import { BinaryExpression } from './visitors/BinaryExpression.js';
+import { BindDirective } from './visitors/BindDirective.js';
+import { BlockStatement } from './visitors/BlockStatement.js';
+import { BreakStatement } from './visitors/BreakStatement.js';
+import { CallExpression } from './visitors/CallExpression.js';
+import { ClassBody } from './visitors/ClassBody.js';
+import { Comment } from './visitors/Comment.js';
+import { Component } from './visitors/Component.js';
+import { ConstTag } from './visitors/ConstTag.js';
+import { DebugTag } from './visitors/DebugTag.js';
+import { EachBlock } from './visitors/EachBlock.js';
+import { ExportNamedDeclaration } from './visitors/ExportNamedDeclaration.js';
+import { ExpressionStatement } from './visitors/ExpressionStatement.js';
+import { Fragment } from './visitors/Fragment.js';
+import { FunctionDeclaration } from './visitors/FunctionDeclaration.js';
+import { FunctionExpression } from './visitors/FunctionExpression.js';
+import { HtmlTag } from './visitors/HtmlTag.js';
+import { Identifier } from './visitors/Identifier.js';
+import { IfBlock } from './visitors/IfBlock.js';
+import { ImportDeclaration } from './visitors/ImportDeclaration.js';
+import { KeyBlock } from './visitors/KeyBlock.js';
+import { LabeledStatement } from './visitors/LabeledStatement.js';
+import { LetDirective } from './visitors/LetDirective.js';
+import { MemberExpression } from './visitors/MemberExpression.js';
+import { OnDirective } from './visitors/OnDirective.js';
+import { Program } from './visitors/Program.js';
+import { RegularElement } from './visitors/RegularElement.js';
+import { RenderTag } from './visitors/RenderTag.js';
+import { SlotElement } from './visitors/SlotElement.js';
+import { SnippetBlock } from './visitors/SnippetBlock.js';
+import { SpreadAttribute } from './visitors/SpreadAttribute.js';
+import { SvelteBody } from './visitors/SvelteBody.js';
+import { SvelteComponent } from './visitors/SvelteComponent.js';
+import { SvelteDocument } from './visitors/SvelteDocument.js';
+import { SvelteElement } from './visitors/SvelteElement.js';
+import { SvelteFragment } from './visitors/SvelteFragment.js';
+import { SvelteBoundary } from './visitors/SvelteBoundary.js';
+import { SvelteHead } from './visitors/SvelteHead.js';
+import { SvelteSelf } from './visitors/SvelteSelf.js';
+import { SvelteWindow } from './visitors/SvelteWindow.js';
+import { TitleElement } from './visitors/TitleElement.js';
+import { TransitionDirective } from './visitors/TransitionDirective.js';
+import { UpdateExpression } from './visitors/UpdateExpression.js';
+import { UseDirective } from './visitors/UseDirective.js';
+import { VariableDeclaration } from './visitors/VariableDeclaration.js';
+
+/** @type {Visitors} */
+const visitors = {
+	_: function set_scope(node, { next, state }) {
+		const scope = state.scopes.get(node);
+
+		if (scope && scope !== state.scope) {
+			const transform = { ...state.transform };
+
+			for (const [name, binding] of scope.declarations) {
+				if (
+					binding.kind === 'normal' ||
+					// Reads of `$state(...)` declarations are not
+					// transformed if they are never reassigned
+					(binding.kind === 'state' && !is_state_source(binding, state.analysis))
+				) {
+					delete transform[name];
+				}
+			}
+
+			next({ ...state, transform, scope });
+		} else {
+			next();
+		}
+	},
+	AnimateDirective,
+	ArrowFunctionExpression,
+	AssignmentExpression,
+	Attribute,
+	AwaitBlock,
+	BinaryExpression,
+	BindDirective,
+	BlockStatement,
+	BreakStatement,
+	CallExpression,
+	ClassBody,
+	Comment,
+	Component,
+	ConstTag,
+	DebugTag,
+	EachBlock,
+	ExportNamedDeclaration,
+	ExpressionStatement,
+	Fragment,
+	FunctionDeclaration,
+	FunctionExpression,
+	HtmlTag,
+	Identifier,
+	IfBlock,
+	ImportDeclaration,
+	KeyBlock,
+	LabeledStatement,
+	LetDirective,
+	MemberExpression,
+	OnDirective,
+	Program,
+	RegularElement,
+	RenderTag,
+	SlotElement,
+	SnippetBlock,
+	SpreadAttribute,
+	SvelteBody,
+	SvelteComponent,
+	SvelteDocument,
+	SvelteElement,
+	SvelteFragment,
+	SvelteBoundary,
+	SvelteHead,
+	SvelteSelf,
+	SvelteWindow,
+	TitleElement,
+	TransitionDirective,
+	UpdateExpression,
+	UseDirective,
+	VariableDeclaration
+};
+
+/**
+ * @param {ComponentAnalysis} analysis
+ * @param {ValidatedCompileOptions} options
+ * @returns {ESTree.Program}
+ */
+export function client_component(analysis, options) {
+	/** @type {ComponentClientTransformState} */
+	const state = {
+		analysis,
+		options,
+		scope: analysis.module.scope,
+		scopes: analysis.module.scopes,
+		is_instance: false,
+		hoisted: [b.import_all('$', 'svelte/internal/client')],
+		node: /** @type {any} */ (null), // populated by the root node
+		legacy_reactive_imports: [],
+		legacy_reactive_statements: new Map(),
+		metadata: {
+			context: {
+				template_needs_import_node: false,
+				template_contains_script_tag: false
+			},
+			namespace: options.namespace,
+			bound_contenteditable: false
+		},
+		events: new Set(),
+		preserve_whitespace: options.preserveWhitespace,
+		public_state: new Map(),
+		private_state: new Map(),
+		transform: {},
+		in_constructor: false,
+		instance_level_snippets: [],
+		module_level_snippets: [],
+
+		// these are set inside the `Fragment` visitor, and cannot be used until then
+		init: /** @type {any} */ (null),
+		update: /** @type {any} */ (null),
+		expressions: /** @type {any} */ (null),
+		after_update: /** @type {any} */ (null),
+		template: /** @type {any} */ (null),
+		locations: /** @type {any} */ (null)
+	};
+
+	const module = /** @type {ESTree.Program} */ (
+		walk(/** @type {AST.SvelteNode} */ (analysis.module.ast), state, visitors)
+	);
+
+	const instance_state = {
+		...state,
+		transform: { ...state.transform },
+		scope: analysis.instance.scope,
+		scopes: analysis.instance.scopes,
+		is_instance: true
+	};
+
+	const instance = /** @type {ESTree.Program} */ (
+		walk(/** @type {AST.SvelteNode} */ (analysis.instance.ast), instance_state, visitors)
+	);
+
+	const template = /** @type {ESTree.Program} */ (
+		walk(
+			/** @type {AST.SvelteNode} */ (analysis.template.ast),
+			{
+				...state,
+				transform: instance_state.transform,
+				scope: analysis.instance.scope,
+				scopes: analysis.template.scopes
+			},
+			visitors
+		)
+	);
+
+	module.body.unshift(...state.legacy_reactive_imports);
+
+	/** @type {ESTree.Statement[]} */
+	const store_setup = [];
+
+	/** @type {ESTree.VariableDeclaration[]} */
+	const legacy_reactive_declarations = [];
+
+	let needs_store_cleanup = false;
+
+	for (const [name, binding] of analysis.instance.scope.declarations) {
+		if (binding.kind === 'legacy_reactive') {
+			legacy_reactive_declarations.push(
+				b.const(name, b.call('$.mutable_state', undefined, analysis.immutable ? b.true : undefined))
+			);
+		}
+		if (binding.kind === 'store_sub') {
+			if (store_setup.length === 0) {
+				needs_store_cleanup = true;
+				store_setup.push(
+					b.const(b.array_pattern([b.id('$$stores'), b.id('$$cleanup')]), b.call('$.setup_stores'))
+				);
+			}
+
+			// We're creating an arrow function that gets the store value which minifies better for two or more references
+			const store_reference = build_getter(b.id(name.slice(1)), instance_state);
+			const store_get = b.call('$.store_get', store_reference, b.literal(name), b.id('$$stores'));
+			store_setup.push(
+				b.const(
+					binding.node,
+					dev
+						? b.thunk(
+								b.sequence([
+									b.call('$.validate_store', store_reference, b.literal(name.slice(1))),
+									store_get
+								])
+							)
+						: b.thunk(store_get)
+				)
+			);
+		}
+	}
+
+	for (const [node] of analysis.reactive_statements) {
+		const statement = [...state.legacy_reactive_statements].find(([n]) => n === node);
+		if (statement === undefined) {
+			throw new Error('Could not find reactive statement');
+		}
+		instance.body.push(statement[1]);
+	}
+
+	if (analysis.reactive_statements.size > 0) {
+		instance.body.push(b.stmt(b.call('$.legacy_pre_effect_reset')));
+	}
+
+	/**
+	 * Used to store the group nodes
+	 * @type {ESTree.VariableDeclaration[]}
+	 */
+	const group_binding_declarations = [];
+	for (const group of analysis.binding_groups.values()) {
+		group_binding_declarations.push(b.const(group.name, b.array([])));
+	}
+
+	/** @type {Array<ESTree.Property | ESTree.SpreadElement>} */
+	const component_returned_object = analysis.exports.flatMap(({ name, alias }) => {
+		const binding = instance_state.scope.get(name);
+		const expression = build_getter(b.id(name), instance_state);
+		const getter = b.get(alias ?? name, [b.return(expression)]);
+
+		if (expression.type === 'Identifier') {
+			if (binding?.declaration_kind === 'let' || binding?.declaration_kind === 'var') {
+				return [
+					getter,
+					b.set(alias ?? name, [b.stmt(b.assignment('=', expression, b.id('$$value')))])
+				];
+			} else if (!dev) {
+				return b.init(alias ?? name, expression);
+			}
+		}
+
+		if (binding?.kind === 'prop' || binding?.kind === 'bindable_prop') {
+			return [getter, b.set(alias ?? name, [b.stmt(b.call(name, b.id('$$value')))])];
+		}
+
+		if (binding?.kind === 'state' || binding?.kind === 'raw_state') {
+			const value = binding.kind === 'state' ? b.call('$.proxy', b.id('$$value')) : b.id('$$value');
+			return [getter, b.set(alias ?? name, [b.stmt(b.call('$.set', b.id(name), value))])];
+		}
+
+		return getter;
+	});
+
+	const properties = [...analysis.instance.scope.declarations].filter(
+		([name, binding]) =>
+			(binding.kind === 'prop' || binding.kind === 'bindable_prop') && !name.startsWith('$$')
+	);
+
+	if (analysis.accessors) {
+		for (const [name, binding] of properties) {
+			const key = binding.prop_alias ?? name;
+
+			const getter = b.get(key, [b.return(b.call(b.id(name)))]);
+
+			const setter = b.set(key, [
+				b.stmt(b.call(b.id(name), b.id('$$value'))),
+				b.stmt(b.call('$.flush_sync'))
+			]);
+
+			if (analysis.runes && binding.initial) {
+				// turn `set foo($$value)` into `set foo($$value = expression)`
+				setter.value.params[0] = {
+					type: 'AssignmentPattern',
+					left: b.id('$$value'),
+					right: /** @type {ESTree.Expression} */ (binding.initial)
+				};
+			}
+
+			component_returned_object.push(getter, setter);
+		}
+	}
+
+	if (options.compatibility.componentApi === 4) {
+		component_returned_object.push(
+			b.init('$set', b.id('$.update_legacy_props')),
+			b.init(
+				'$on',
+				b.arrow(
+					[b.id('$$event_name'), b.id('$$event_cb')],
+					b.call(
+						'$.add_legacy_event_listener',
+						b.id('$$props'),
+						b.id('$$event_name'),
+						b.id('$$event_cb')
+					)
+				)
+			)
+		);
+	} else if (dev) {
+		component_returned_object.push(b.spread(b.call(b.id('$.legacy_api'))));
+	}
+
+	const push_args = [b.id('$$props'), b.literal(analysis.runes)];
+	if (dev) push_args.push(b.id(analysis.name));
+
+	const component_block = b.block([
+		...store_setup,
+		...legacy_reactive_declarations,
+		...group_binding_declarations,
+		...state.instance_level_snippets,
+		.../** @type {ESTree.Statement[]} */ (instance.body),
+		analysis.runes || !analysis.needs_context
+			? b.empty
+			: b.stmt(b.call('$.init', analysis.immutable ? b.true : undefined)),
+		.../** @type {ESTree.Statement[]} */ (template.body)
+	]);
+
+	if (!analysis.runes) {
+		// Bind static exports to props so that people can access them with bind:x
+		for (const { name, alias } of analysis.exports) {
+			component_block.body.push(
+				b.stmt(
+					b.call(
+						'$.bind_prop',
+						b.id('$$props'),
+						b.literal(alias ?? name),
+						build_getter(b.id(name), instance_state)
+					)
+				)
+			);
+		}
+	}
+
+	if (analysis.css.ast !== null && analysis.inject_styles) {
+		const hash = b.literal(analysis.css.hash);
+		const code = b.literal(render_stylesheet(analysis.source, analysis, options).code);
+
+		state.hoisted.push(b.const('$$css', b.object([b.init('hash', hash), b.init('code', code)])));
+
+		component_block.body.unshift(
+			b.stmt(b.call('$.append_styles', b.id('$$anchor'), b.id('$$css')))
+		);
+	}
+
+	const should_inject_context =
+		dev ||
+		analysis.needs_context ||
+		analysis.reactive_statements.size > 0 ||
+		component_returned_object.length > 0;
+
+	// we want the cleanup function for the stores to run as the very last thing
+	// so that it can effectively clean up the store subscription even after the user effects runs
+	if (should_inject_context) {
+		component_block.body.unshift(b.stmt(b.call('$.push', ...push_args)));
+
+		let to_push;
+
+		if (component_returned_object.length > 0) {
+			let pop_call = b.call('$.pop', b.object(component_returned_object));
+			to_push = needs_store_cleanup ? b.var('$$pop', pop_call) : b.return(pop_call);
+		} else {
+			to_push = b.stmt(b.call('$.pop'));
+		}
+
+		component_block.body.push(to_push);
+	}
+
+	if (needs_store_cleanup) {
+		component_block.body.push(b.stmt(b.call('$$cleanup')));
+		if (component_returned_object.length > 0) {
+			component_block.body.push(b.return(b.id('$$pop')));
+		}
+	}
+
+	if (analysis.uses_rest_props) {
+		const named_props = analysis.exports.map(({ name, alias }) => alias ?? name);
+		for (const [name, binding] of analysis.instance.scope.declarations) {
+			if (binding.kind === 'bindable_prop') named_props.push(binding.prop_alias ?? name);
+		}
+
+		component_block.body.unshift(
+			b.const(
+				'$$restProps',
+				b.call(
+					'$.legacy_rest_props',
+					b.id('$$sanitized_props'),
+					b.array(named_props.map((name) => b.literal(name)))
+				)
+			)
+		);
+	}
+
+	if (analysis.uses_props || analysis.uses_rest_props) {
+		const to_remove = [
+			b.literal('children'),
+			b.literal('$$slots'),
+			b.literal('$$events'),
+			b.literal('$$legacy')
+		];
+		if (analysis.custom_element) {
+			to_remove.push(b.literal('$$host'));
+		}
+
+		component_block.body.unshift(
+			b.const(
+				'$$sanitized_props',
+				b.call('$.legacy_rest_props', b.id('$$props'), b.array(to_remove))
+			)
+		);
+	}
+
+	if (analysis.uses_slots) {
+		component_block.body.unshift(b.const('$$slots', b.call('$.sanitize_slots', b.id('$$props'))));
+	}
+
+	let should_inject_props =
+		should_inject_context ||
+		analysis.needs_props ||
+		analysis.uses_props ||
+		analysis.uses_rest_props ||
+		analysis.uses_slots ||
+		analysis.slot_names.size > 0;
+
+	// Merge hoisted statements into module body.
+	// Ensure imports are on top, with the order preserved, then module body, then hoisted statements
+	/** @type {ESTree.ImportDeclaration[]} */
+	const imports = [];
+	/** @type {ESTree.Program['body']} */
+	let body = [];
+
+	for (const entry of [...module.body, ...state.hoisted]) {
+		if (entry.type === 'ImportDeclaration') {
+			imports.push(entry);
+		} else {
+			body.push(entry);
+		}
+	}
+
+	body = [...imports, ...state.module_level_snippets, ...body];
+
+	const component = b.function_declaration(
+		b.id(analysis.name),
+		should_inject_props ? [b.id('$$anchor'), b.id('$$props')] : [b.id('$$anchor')],
+		component_block
+	);
+
+	if (options.hmr) {
+		const id = b.id(analysis.name);
+		const HMR = b.id('$.HMR');
+
+		const existing = b.member(id, HMR, true);
+		const incoming = b.member(b.id('module.default'), HMR, true);
+
+		const accept_fn_body = [
+			b.stmt(b.assignment('=', b.member(incoming, 'source'), b.member(existing, 'source'))),
+			b.stmt(b.call('$.set', b.member(existing, 'source'), b.member(incoming, 'original')))
+		];
+
+		if (analysis.css.hash) {
+			// remove existing `<style>` element, in case CSS changed
+			accept_fn_body.unshift(b.stmt(b.call('$.cleanup_styles', b.literal(analysis.css.hash))));
+		}
+
+		const hmr = b.block([
+			b.stmt(b.assignment('=', id, b.call('$.hmr', id, b.thunk(b.member(existing, 'source'))))),
+
+			b.stmt(b.call('import.meta.hot.accept', b.arrow([b.id('module')], b.block(accept_fn_body))))
+		]);
+
+		body.push(component, b.if(b.id('import.meta.hot'), hmr), b.export_default(b.id(analysis.name)));
+	} else {
+		body.push(b.export_default(component));
+	}
+
+	if (dev) {
+		// add `App[$.FILENAME] = 'App.svelte'` so that we can print useful messages later
+		body.unshift(
+			b.stmt(
+				b.assignment('=', b.member(b.id(analysis.name), '$.FILENAME', true), b.literal(filename))
+			)
+		);
+
+		body.unshift(b.stmt(b.call(b.id('$.mark_module_start'))));
+		body.push(b.stmt(b.call(b.id('$.mark_module_end'), b.id(analysis.name))));
+	}
+
+	if (!analysis.runes) {
+		body.unshift(b.imports([], 'svelte/internal/flags/legacy'));
+	}
+
+	if (analysis.tracing) {
+		body.unshift(b.imports([], 'svelte/internal/flags/tracing'));
+	}
+
+	if (options.discloseVersion) {
+		body.unshift(b.imports([], 'svelte/internal/disclose-version'));
+	}
+
+	if (options.compatibility.componentApi === 4) {
+		body.unshift(b.imports([['createClassComponent', '$$_createClassComponent']], 'svelte/legacy'));
+		component_block.body.unshift(
+			b.if(
+				b.id('new.target'),
+				b.return(
+					b.call(
+						'$$_createClassComponent',
+						// When called with new, the first argument is the constructor options
+						b.object([b.init('component', b.id(analysis.name)), b.spread(b.id('$$anchor'))])
+					)
+				)
+			)
+		);
+	} else if (dev) {
+		component_block.body.unshift(b.stmt(b.call('$.check_target', b.id('new.target'))));
+	}
+
+	if (state.events.size > 0) {
+		body.push(
+			b.stmt(b.call('$.delegate', b.array(Array.from(state.events).map((name) => b.literal(name)))))
+		);
+	}
+
+	if (analysis.custom_element) {
+		const ce = analysis.custom_element;
+		const ce_props = typeof ce === 'boolean' ? {} : ce.props || {};
+
+		/** @type {ESTree.Property[]} */
+		const props_str = [];
+
+		for (const [name, prop_def] of Object.entries(ce_props)) {
+			const binding = analysis.instance.scope.get(name);
+			const key = binding?.prop_alias ?? name;
+
+			if (
+				!prop_def.type &&
+				binding?.initial?.type === 'Literal' &&
+				typeof binding?.initial.value === 'boolean'
+			) {
+				prop_def.type = 'Boolean';
+			}
+
+			const value = b.object(
+				/** @type {ESTree.Property[]} */ (
+					[
+						prop_def.attribute ? b.init('attribute', b.literal(prop_def.attribute)) : undefined,
+						prop_def.reflect ? b.init('reflect', b.literal(true)) : undefined,
+						prop_def.type ? b.init('type', b.literal(prop_def.type)) : undefined
+					].filter(Boolean)
+				)
+			);
+
+			props_str.push(b.init(key, value));
+		}
+
+		for (const [name, binding] of properties) {
+			const key = binding.prop_alias ?? name;
+			if (ce_props[key]) continue;
+
+			props_str.push(b.init(key, b.object([])));
+		}
+
+		const slots_str = b.array([...analysis.slot_names.keys()].map((name) => b.literal(name)));
+		const accessors_str = b.array(
+			analysis.exports.map(({ name, alias }) => b.literal(alias ?? name))
+		);
+		const use_shadow_dom = typeof ce === 'boolean' || ce.shadow !== 'none' ? true : false;
+
+		const create_ce = b.call(
+			'$.create_custom_element',
+			b.id(analysis.name),
+			b.object(props_str),
+			slots_str,
+			accessors_str,
+			b.literal(use_shadow_dom),
+			/** @type {any} */ (typeof ce !== 'boolean' ? ce.extend : undefined)
+		);
+
+		// If a tag name is provided, call `customElements.define`, otherwise leave to the user
+		if (typeof ce !== 'boolean' && typeof ce.tag === 'string') {
+			const define = b.stmt(b.call('customElements.define', b.literal(ce.tag), create_ce));
+
+			if (options.hmr) {
+				body.push(
+					b.if(b.binary('==', b.call('customElements.get', b.literal(ce.tag)), b.null), define)
+				);
+			} else {
+				body.push(define);
+			}
+		} else {
+			body.push(b.stmt(create_ce));
+		}
+	}
+
+	return {
+		type: 'Program',
+		sourceType: 'module',
+		body
+	};
+}
+
+/**
+ * @param {Analysis} analysis
+ * @param {ValidatedModuleCompileOptions} options
+ * @returns {ESTree.Program}
+ */
+export function client_module(analysis, options) {
+	/** @type {ClientTransformState} */
+	const state = {
+		analysis,
+		options,
+		scope: analysis.module.scope,
+		scopes: analysis.module.scopes,
+		public_state: new Map(),
+		private_state: new Map(),
+		transform: {},
+		in_constructor: false
+	};
+
+	const module = /** @type {ESTree.Program} */ (
+		walk(/** @type {AST.SvelteNode} */ (analysis.module.ast), state, visitors)
+	);
+
+	const body = [b.import_all('$', 'svelte/internal/client')];
+
+	if (analysis.tracing) {
+		body.push(b.imports([], 'svelte/internal/flags/tracing'));
+	}
+
+	return {
+		type: 'Program',
+		sourceType: 'module',
+		body: [...body, ...module.body]
+	};
+}

node_modules/svelte/src/compiler/phases/3-transform/client/types.d.ts

@@ -0,0 +1,111 @@
+import type {
+	ModuleDeclaration,
+	Statement,
+	LabeledStatement,
+	Identifier,
+	PrivateIdentifier,
+	Expression,
+	AssignmentExpression,
+	UpdateExpression,
+	VariableDeclaration
+} from 'estree';
+import type { AST, Namespace, ValidatedCompileOptions } from '#compiler';
+import type { TransformState } from '../types.js';
+import type { ComponentAnalysis } from '../../types.js';
+import type { SourceLocation } from '#shared';
+
+export interface ClientTransformState extends TransformState {
+	readonly private_state: Map<string, StateField>;
+	readonly public_state: Map<string, StateField>;
+
+	/**
+	 * `true` if the current lexical scope belongs to a class constructor. this allows
+	 * us to rewrite `this.foo` as `this.#foo.value`
+	 */
+	readonly in_constructor: boolean;
+
+	readonly transform: Record<
+		string,
+		{
+			/** turn `foo` into e.g. `$.get(foo)` */
+			read: (id: Identifier) => Expression;
+			/** turn `foo = bar` into e.g. `$.set(foo, bar)` */
+			assign?: (node: Identifier, value: Expression) => Expression;
+			/** turn `foo.bar = baz` into e.g. `$.mutate(foo, $.get(foo).bar = baz);` */
+			mutate?: (node: Identifier, mutation: AssignmentExpression | UpdateExpression) => Expression;
+			/** turn `foo++` into e.g. `$.update(foo)` */
+			update?: (node: UpdateExpression) => Expression;
+		}
+	>;
+}
+
+export interface ComponentClientTransformState extends ClientTransformState {
+	readonly analysis: ComponentAnalysis;
+	readonly options: ValidatedCompileOptions;
+	readonly hoisted: Array<Statement | ModuleDeclaration>;
+	readonly events: Set<string>;
+	readonly is_instance: boolean;
+
+	/** Stuff that happens before the render effect(s) */
+	readonly init: Statement[];
+	/** Stuff that happens inside the render effect */
+	readonly update: Statement[];
+	/** Stuff that happens after the render effect (control blocks, dynamic elements, bindings, actions, etc) */
+	readonly after_update: Statement[];
+	/** Expressions used inside the render effect */
+	readonly expressions: Expression[];
+	/** The HTML template string */
+	readonly template: Array<string | Expression>;
+	readonly locations: SourceLocation[];
+	readonly metadata: {
+		namespace: Namespace;
+		bound_contenteditable: boolean;
+		/**
+		 * Stuff that is set within the children of one `Fragment` visitor that is relevant
+		 * to said fragment. Shouldn't be destructured or otherwise spread unless inside the
+		 * `Fragment` visitor to keep the object reference intact (it's also nested
+		 * within `metadata` for this reason).
+		 */
+		context: {
+			/** `true` if the HTML template needs to be instantiated with `importNode` */
+			template_needs_import_node: boolean;
+			/**
+			 * `true` if HTML template contains a `<script>` tag. In this case we need to invoke a special
+			 * template instantiation function (see `create_fragment_with_script_from_html` for more info)
+			 */
+			template_contains_script_tag: boolean;
+		};
+	};
+	readonly preserve_whitespace: boolean;
+
+	/** The anchor node for the current context */
+	readonly node: Identifier;
+
+	/** Imports that should be re-evaluated in legacy mode following a mutation */
+	readonly legacy_reactive_imports: Statement[];
+
+	/** The $: calls, which will be ordered in the end */
+	readonly legacy_reactive_statements: Map<LabeledStatement, Statement>;
+
+	/** Snippets hoisted to the instance */
+	readonly instance_level_snippets: VariableDeclaration[];
+	/** Snippets hoisted to the module */
+	readonly module_level_snippets: VariableDeclaration[];
+}
+
+export interface StateField {
+	kind: 'state' | 'raw_state' | 'derived' | 'derived_by';
+	id: PrivateIdentifier;
+}
+
+export type Context = import('zimmerframe').Context<AST.SvelteNode, ClientTransformState>;
+export type Visitors = import('zimmerframe').Visitors<AST.SvelteNode, any>;
+
+export type ComponentContext = import('zimmerframe').Context<
+	AST.SvelteNode,
+	ComponentClientTransformState
+>;
+export type ComponentVisitors = import('zimmerframe').Visitors<
+	AST.SvelteNode,
+	ComponentClientTransformState
+>;

node_modules/svelte/src/compiler/phases/3-transform/client/utils.js

@@ -0,0 +1,279 @@
+/** @import { ArrowFunctionExpression, Expression, FunctionDeclaration, FunctionExpression, Identifier, Pattern, PrivateIdentifier, Statement } from 'estree' */
+/** @import { AST, Binding } from '#compiler' */
+/** @import { ClientTransformState, ComponentClientTransformState, ComponentContext } from './types.js' */
+/** @import { Analysis } from '../../types.js' */
+/** @import { Scope } from '../../scope.js' */
+import * as b from '../../../utils/builders.js';
+import { extract_identifiers, is_simple_expression } from '../../../utils/ast.js';
+import {
+	PROPS_IS_LAZY_INITIAL,
+	PROPS_IS_IMMUTABLE,
+	PROPS_IS_RUNES,
+	PROPS_IS_UPDATED,
+	PROPS_IS_BINDABLE
+} from '../../../../constants.js';
+import { dev } from '../../../state.js';
+import { get_value } from './visitors/shared/declarations.js';
+
+/**
+ * @param {Binding} binding
+ * @param {Analysis} analysis
+ * @returns {boolean}
+ */
+export function is_state_source(binding, analysis) {
+	return (
+		(binding.kind === 'state' || binding.kind === 'raw_state') &&
+		(!analysis.immutable || binding.reassigned || analysis.accessors)
+	);
+}
+
+/**
+ * @param {Identifier} node
+ * @param {ClientTransformState} state
+ * @returns {Expression}
+ */
+export function build_getter(node, state) {
+	if (Object.hasOwn(state.transform, node.name)) {
+		const binding = state.scope.get(node.name);
+
+		// don't transform the declaration itself
+		if (node !== binding?.node) {
+			return state.transform[node.name].read(node);
+		}
+	}
+
+	return node;
+}
+
+/**
+ * @param {Expression} value
+ * @param {Expression} previous
+ */
+export function build_proxy_reassignment(value, previous) {
+	return dev ? b.call('$.proxy', value, b.null, previous) : b.call('$.proxy', value);
+}
+
+/**
+ * @param {FunctionDeclaration | FunctionExpression | ArrowFunctionExpression} node
+ * @param {ComponentContext} context
+ * @returns {Pattern[]}
+ */
+function get_hoisted_params(node, context) {
+	const scope = context.state.scope;
+
+	/** @type {Identifier[]} */
+	const params = [];
+
+	/**
+	 * We only want to push if it's not already present to avoid name clashing
+	 * @param {Identifier} id
+	 */
+	function push_unique(id) {
+		if (!params.find((param) => param.name === id.name)) {
+			params.push(id);
+		}
+	}
+
+	for (const [reference] of scope.references) {
+		let binding = scope.get(reference);
+
+		if (binding !== null && !scope.declarations.has(reference) && binding.initial !== node) {
+			if (binding.kind === 'store_sub') {
+				// We need both the subscription for getting the value and the store for updating
+				push_unique(b.id(binding.node.name));
+				binding = /** @type {Binding} */ (scope.get(binding.node.name.slice(1)));
+			}
+
+			let expression = context.state.transform[reference]?.read(b.id(binding.node.name));
+
+			if (
+				// If it's a destructured derived binding, then we can extract the derived signal reference and use that.
+				// TODO this code is bad, we need to kill it
+				expression != null &&
+				typeof expression !== 'function' &&
+				expression.type === 'MemberExpression' &&
+				expression.object.type === 'CallExpression' &&
+				expression.object.callee.type === 'Identifier' &&
+				expression.object.callee.name === '$.get' &&
+				expression.object.arguments[0].type === 'Identifier'
+			) {
+				push_unique(b.id(expression.object.arguments[0].name));
+			} else if (
+				// If we are referencing a simple $$props value, then we need to reference the object property instead
+				(binding.kind === 'prop' || binding.kind === 'bindable_prop') &&
+				!is_prop_source(binding, context.state)
+			) {
+				push_unique(b.id('$$props'));
+			} else if (
+				// imports don't need to be hoisted
+				binding.declaration_kind !== 'import'
+			) {
+				// create a copy to remove start/end tags which would mess up source maps
+				push_unique(b.id(binding.node.name));
+				// rest props are often accessed through the $$props object for optimization reasons,
+				// but we can't know if the delegated event handler will use it, so we need to add both as params
+				if (binding.kind === 'rest_prop' && context.state.analysis.runes) {
+					push_unique(b.id('$$props'));
+				}
+			}
+		}
+	}
+	return params;
+}
+
+/**
+ * @param {FunctionDeclaration | FunctionExpression | ArrowFunctionExpression} node
+ * @param {ComponentContext} context
+ * @returns {Pattern[]}
+ */
+export function build_hoisted_params(node, context) {
+	const hoisted_params = get_hoisted_params(node, context);
+	node.metadata.hoisted_params = hoisted_params;
+
+	/** @type {Pattern[]} */
+	const params = [];
+
+	if (node.params.length === 0) {
+		if (hoisted_params.length > 0) {
+			// For the event object
+			params.push(b.id(context.state.scope.generate('_')));
+		}
+	} else {
+		for (const param of node.params) {
+			params.push(/** @type {Pattern} */ (context.visit(param)));
+		}
+	}
+
+	params.push(...hoisted_params);
+	return params;
+}
+
+/**
+ * @param {Binding} binding
+ * @param {ComponentClientTransformState} state
+ * @param {string} name
+ * @param {Expression | null} [initial]
+ * @returns
+ */
+export function get_prop_source(binding, state, name, initial) {
+	/** @type {Expression[]} */
+	const args = [b.id('$$props'), b.literal(name)];
+
+	let flags = 0;
+
+	if (binding.kind === 'bindable_prop') {
+		flags |= PROPS_IS_BINDABLE;
+	}
+
+	if (state.analysis.immutable) {
+		flags |= PROPS_IS_IMMUTABLE;
+	}
+
+	if (state.analysis.runes) {
+		flags |= PROPS_IS_RUNES;
+	}
+
+	if (
+		state.analysis.accessors ||
+		(state.analysis.immutable
+			? binding.reassigned || (state.analysis.runes && binding.mutated)
+			: binding.updated)
+	) {
+		flags |= PROPS_IS_UPDATED;
+	}
+
+	/** @type {Expression | undefined} */
+	let arg;
+
+	if (initial) {
+		// To avoid eagerly evaluating the right-hand-side, we wrap it in a thunk if necessary
+		if (is_simple_expression(initial)) {
+			arg = initial;
+		} else {
+			if (
+				initial.type === 'CallExpression' &&
+				initial.callee.type === 'Identifier' &&
+				initial.arguments.length === 0
+			) {
+				arg = initial.callee;
+			} else {
+				arg = b.thunk(initial);
+			}
+
+			flags |= PROPS_IS_LAZY_INITIAL;
+		}
+	}
+
+	if (flags || arg) {
+		args.push(b.literal(flags));
+		if (arg) args.push(arg);
+	}
+
+	return b.call('$.prop', ...args);
+}
+
+/**
+ *
+ * @param {Binding} binding
+ * @param {ClientTransformState} state
+ * @returns
+ */
+export function is_prop_source(binding, state) {
+	return (
+		(binding.kind === 'prop' || binding.kind === 'bindable_prop') &&
+		(!state.analysis.runes ||
+			state.analysis.accessors ||
+			binding.reassigned ||
+			binding.initial ||
+			// Until legacy mode is gone, we also need to use the prop source when only mutated is true,
+			// because the parent could be a legacy component which needs coarse-grained reactivity
+			binding.updated)
+	);
+}
+
+/**
+ * @param {Expression} node
+ * @param {Scope | null} scope
+ */
+export function should_proxy(node, scope) {
+	if (
+		!node ||
+		node.type === 'Literal' ||
+		node.type === 'TemplateLiteral' ||
+		node.type === 'ArrowFunctionExpression' ||
+		node.type === 'FunctionExpression' ||
+		node.type === 'UnaryExpression' ||
+		node.type === 'BinaryExpression' ||
+		(node.type === 'Identifier' && node.name === 'undefined')
+	) {
+		return false;
+	}
+
+	if (node.type === 'Identifier' && scope !== null) {
+		const binding = scope.get(node.name);
+		// Let's see if the reference is something that can be proxied
+		if (
+			binding !== null &&
+			!binding.reassigned &&
+			binding.initial !== null &&
+			binding.initial.type !== 'FunctionDeclaration' &&
+			binding.initial.type !== 'ClassDeclaration' &&
+			binding.initial.type !== 'ImportDeclaration' &&
+			binding.initial.type !== 'EachBlock' &&
+			binding.initial.type !== 'SnippetBlock'
+		) {
+			return should_proxy(binding.initial, null);
+		}
+	}
+
+	return true;
+}
+
+/**
+ * Svelte legacy mode should use safe equals in most places, runes mode shouldn't
+ * @param {ComponentClientTransformState} state
+ * @param {Expression} arg
+ */
+export function create_derived(state, arg) {
+	return b.call(state.analysis.runes ? '$.derived' : '$.derived_safe_equal', arg);
+}

node_modules/svelte/src/compiler/phases/3-transform/client/visitors/AnimateDirective.js

@@ -0,0 +1,28 @@
+/** @import { Expression } from 'estree' */
+/** @import { AST } from '#compiler' */
+/** @import { ComponentContext } from '../types' */
+import * as b from '../../../../utils/builders.js';
+import { parse_directive_name } from './shared/utils.js';
+
+/**
+ * @param {AST.AnimateDirective} node
+ * @param {ComponentContext} context
+ */
+export function AnimateDirective(node, context) {
+	const expression =
+		node.expression === null
+			? b.literal(null)
+			: b.thunk(/** @type {Expression} */ (context.visit(node.expression)));
+
+	// in after_update to ensure it always happens after bind:this
+	context.state.after_update.push(
+		b.stmt(
+			b.call(
+				'$.animation',
+				context.state.node,
+				b.thunk(/** @type {Expression} */ (context.visit(parse_directive_name(node.name)))),
+				expression
+			)
+		)
+	);
+}

node_modules/svelte/src/compiler/phases/3-transform/client/visitors/ArrowFunctionExpression.js

@@ -0,0 +1,11 @@
+/** @import { ArrowFunctionExpression } from 'estree' */
+/** @import { ComponentContext } from '../types' */
+import { visit_function } from './shared/function.js';
+
+/**
+ * @param {ArrowFunctionExpression} node
+ * @param {ComponentContext} context
+ */
+export function ArrowFunctionExpression(node, context) {
+	return visit_function(node, context);
+}