@qwik.dev/core/dist/core-internal.d.ts

An open source framework for building instant loading web apps at any scale, without the extra effort.

import { ComputedSignal as ComputedSignal_2 } from '..';
import * as CSS_2 from 'csstype';
import { isBrowser } from './build';
import { isDev } from './build';
import { isServer } from './build';
import { JSXNode as JSXNode_2 } from './types/jsx-node';
import { QRL as QRL_2 } from './qrl.public';

/**
 * Qwik Optimizer marker function.
 *
 * Use `$(...)` to tell Qwik Optimizer to extract the expression in `$(...)` into a lazy-loadable
 * resource referenced by `QRL`.
 *
 * @param expression - Expression which should be lazy loaded
 * @public
 * @see `implicit$FirstArg` for additional `____$(...)` rules.
 *
 * In this example, `$(...)` is used to capture the callback function of `onmousemove` into a
 * lazy-loadable reference. This allows the code to refer to the function without actually
 * loading the function. In this example, the callback function does not get loaded until
 * `mousemove` event fires.
 *
 * ```tsx
 * useOnDocument(
 *   'mousemove',
 *   $((event) => console.log('mousemove', event))
 * );
 * ```
 *
 * In this code, the Qwik Optimizer detects `$(...)` and transforms the code into:
 *
 * ```tsx
 * // FILE: <current file>
 * useOnDocument('mousemove', qrl('./chunk-abc.js', 'onMousemove'));
 *
 * // FILE: chunk-abc.js
 * export const onMousemove = () => console.log('mousemove');
 * ```
 *
 * ## Special Rules
 *
 * The Qwik Optimizer places special rules on functions that can be lazy-loaded.
 *
 * 1. The expression of the `$(expression)` function must be importable by the system.
 * (expression shows up in `import` or has `export`)
 * 2. If inlined function, then all lexically captured values must be:
 *    - importable (vars show up in `import`s or `export`s)
 *    - const (The capturing process differs from JS capturing in that writing to captured
 * variables does not update them, and therefore writes are forbidden. The best practice is that
 * all captured variables are constants.)
 *    - Must be runtime serializable.
 *
 * ```tsx
 *
 * import { createContextId, useContext, useContextProvider } from './use/use-context';
 * import { Resource } from './use/use-resource';
 * import { useResource$ } from './use/use-resource-dollar';
 * import { useSignal } from './use/use-signal';
 *
 * export const greet = () => console.log('greet');
 * function topLevelFn() {}
 *
 * function myCode() {
 *   const store = useStore({});
 *   function localFn() {}
 *   // Valid Examples
 *   $(greet); // greet is importable
 *   $(() => greet()); // greet is importable;
 *   $(() => console.log(store)); // store is serializable.
 *
 *   // Compile time errors
 *   $(topLevelFn); // ERROR: `topLevelFn` not importable
 *   $(() => topLevelFn()); // ERROR: `topLevelFn` not importable
 *
 *   // Runtime errors
 *   $(localFn); // ERROR: `localFn` fails serialization
 *   $(() => localFn()); // ERROR: `localFn` fails serialization
 * }
 *
 * ```
 */
export declare const $: <T>(expression: T) => QRL<T>;

declare interface AddRootFn {
    (obj: unknown, returnRef?: never): number;
    (obj: unknown, returnRef: true): SeenRef;
}

declare type AllEventKeys = keyof AllEventsMap;

declare type AllEventMapRaw = HTMLElementEventMap & DocumentEventMap & WindowEventHandlersEventMap & {
    qidle: QwikIdleEvent;
    qinit: QwikInitEvent;
    qsymbol: QwikSymbolEvent;
    qvisible: QwikVisibleEvent;
    qviewtransition: QwikViewTransitionEvent;
};

declare type AllEventsMap = Omit<AllEventMapRaw, keyof EventCorrectionMap> & EventCorrectionMap;

declare type _AllowPlainQrl<Q> = QRLEventHandlerMulti<any, any> extends Q ? Q extends QRLEventHandlerMulti<infer EV, infer EL> ? Q | (EL extends Element ? EventHandler<EV, EL> : never) : Q : Q extends QRL<infer U> ? Q | U : NonNullable<Q> extends never ? Q : QRL<Q> | Q;

declare type AllPascalEventMaps = PascalMap<AllEventsMap>;

declare type AllSignalFlags = SignalFlags | WrappedSignalFlags | SerializationSignalFlags;

/**
 * TS defines these with the React syntax which is not compatible with Qwik. E.g. `ariaAtomic`
 * instead of `aria-atomic`.
 *
 * @public
 */
declare interface AriaAttributes {
    /**
     * Identifies the currently active element when DOM focus is on a composite widget, textbox,
     * group, or application.
     */
    'aria-activedescendant'?: string | undefined;
    /**
     * Indicates whether assistive technologies will present all, or only parts of, the changed region
     * based on the change notifications defined by the aria-relevant attribute.
     */
    'aria-atomic'?: Booleanish | undefined;
    /**
     * Indicates whether inputting text could trigger display of one or more predictions of the user's
     * intended value for an input and specifies how predictions would be presented if they are made.
     */
    'aria-autocomplete'?: 'none' | 'inline' | 'list' | 'both' | undefined;
    /**
     * Indicates an element is being modified and that assistive technologies MAY want to wait until
     * the modifications are complete before exposing them to the user.
     */
    'aria-busy'?: Booleanish | undefined;
    /**
     * Indicates the current "checked" state of checkboxes, radio buttons, and other widgets.
     *
     * @see aria-pressed @see aria-selected.
     */
    'aria-checked'?: boolean | 'false' | 'mixed' | 'true' | undefined;
    /**
     * Defines the total number of columns in a table, grid, or treegrid.
     *
     * @see aria-colindex.
     */
    'aria-colcount'?: number | undefined;
    /**
     * Defines an element's column index or position with respect to the total number of columns
     * within a table, grid, or treegrid.
     *
     * @see aria-colcount @see aria-colspan.
     */
    'aria-colindex'?: number | undefined;
    /**
     * Defines the number of columns spanned by a cell or gridcell within a table, grid, or treegrid.
     *
     * @see aria-colindex @see aria-rowspan.
     */
    'aria-colspan'?: number | undefined;
    /**
     * Identifies the element (or elements) whose contents or presence are controlled by the current
     * element.
     *
     * @see aria-owns.
     */
    'aria-controls'?: string | undefined;
    /**
     * Indicates the element that represents the current item within a container or set of related
     * elements.
     */
    'aria-current'?: boolean | 'false' | 'true' | 'page' | 'step' | 'location' | 'date' | 'time' | undefined;
    /**
     * Identifies the element (or elements) that describes the object.
     *
     * @see aria-labelledby
     */
    'aria-describedby'?: string | undefined;
    /**
     * Identifies the element that provides a detailed, extended description for the object.
     *
     * @see aria-describedby.
     */
    'aria-details'?: string | undefined;
    /**
     * Indicates that the element is perceivable but disabled, so it is not editable or otherwise
     * operable.
     *
     * @see aria-hidden @see aria-readonly.
     */
    'aria-disabled'?: Booleanish | undefined;
    /**
     * Indicates what functions can be performed when a dragged object is released on the drop target.
     *
     * @deprecated In ARIA 1.1
     */
    'aria-dropeffect'?: 'none' | 'copy' | 'execute' | 'link' | 'move' | 'popup' | undefined;
    /**
     * Identifies the element that provides an error message for the object.
     *
     * @see aria-invalid @see aria-describedby.
     */
    'aria-errormessage'?: string | undefined;
    /**
     * Indicates whether the element, or another grouping element it controls, is currently expanded
     * or collapsed.
     */
    'aria-expanded'?: Booleanish | undefined;
    /**
     * Identifies the next element (or elements) in an alternate reading order of content which, at
     * the user's discretion, allows assistive technology to override the general default of reading
     * in document source order.
     */
    'aria-flowto'?: string | undefined;
    /**
     * Indicates an element's "grabbed" state in a drag-and-drop operation.
     *
     * @deprecated In ARIA 1.1
     */
    'aria-grabbed'?: Booleanish | undefined;
    /**
     * Indicates the availability and type of interactive popup element, such as menu or dialog, that
     * can be triggered by an element.
     */
    'aria-haspopup'?: boolean | 'false' | 'true' | 'menu' | 'listbox' | 'tree' | 'grid' | 'dialog' | undefined;
    /**
     * Indicates whether the element is exposed to an accessibility API.
     *
     * @see aria-disabled.
     */
    'aria-hidden'?: Booleanish | undefined;
    /**
     * Indicates the entered value does not conform to the format expected by the application.
     *
     * @see aria-errormessage.
     */
    'aria-invalid'?: boolean | 'false' | 'true' | 'grammar' | 'spelling' | undefined;
    /**
     * Indicates keyboard shortcuts that an author has implemented to activate or give focus to an
     * element.
     */
    'aria-keyshortcuts'?: string | undefined;
    /**
     * Defines a string value that labels the current element.
     *
     * @see aria-labelledby.
     */
    'aria-label'?: string | undefined;
    /**
     * Identifies the element (or elements) that labels the current element.
     *
     * @see aria-describedby.
     */
    'aria-labelledby'?: string | undefined;
    /** Defines the hierarchical level of an element within a structure. */
    'aria-level'?: number | undefined;
    /**
     * Indicates that an element will be updated, and describes the types of updates the user agents,
     * assistive technologies, and user can expect from the live region.
     */
    'aria-live'?: 'off' | 'assertive' | 'polite' | undefined;
    /** Indicates whether an element is modal when displayed. */
    'aria-modal'?: Booleanish | undefined;
    /** Indicates whether a text box accepts multiple lines of input or only a single line. */
    'aria-multiline'?: Booleanish | undefined;
    /** Indicates that the user may select more than one item from the current selectable descendants. */
    'aria-multiselectable'?: Booleanish | undefined;
    /** Indicates whether the element's orientation is horizontal, vertical, or unknown/ambiguous. */
    'aria-orientation'?: 'horizontal' | 'vertical' | undefined;
    /**
     * Identifies an element (or elements) in order to define a visual, functional, or contextual
     * parent/child relationship between DOM elements where the DOM hierarchy cannot be used to
     * represent the relationship.
     *
     * @see aria-controls.
     */
    'aria-owns'?: string | undefined;
    /**
     * Defines a short hint (a word or short phrase) intended to aid the user with data entry when the
     * control has no value. A hint could be a sample value or a brief description of the expected
     * format.
     */
    'aria-placeholder'?: string | undefined;
    /**
     * Defines an element's number or position in the current set of listitems or treeitems. Not
     * required if all elements in the set are present in the DOM.
     *
     * @see aria-setsize.
     */
    'aria-posinset'?: number | undefined;
    /**
     * Indicates the current "pressed" state of toggle buttons.
     *
     * @see aria-checked @see aria-selected.
     */
    'aria-pressed'?: boolean | 'false' | 'mixed' | 'true' | undefined;
    /**
     * Indicates that the element is not editable, but is otherwise operable.
     *
     * @see aria-disabled.
     */
    'aria-readonly'?: Booleanish | undefined;
    /**
     * Indicates what notifications the user agent will trigger when the accessibility tree within a
     * live region is modified.
     *
     * @see aria-atomic.
     */
    'aria-relevant'?: 'additions' | 'additions removals' | 'additions text' | 'all' | 'removals' | 'removals additions' | 'removals text' | 'text' | 'text additions' | 'text removals' | undefined;
    /** Indicates that user input is required on the element before a form may be submitted. */
    'aria-required'?: Booleanish | undefined;
    /** Defines a human-readable, author-localized description for the role of an element. */
    'aria-roledescription'?: string | undefined;
    /**
     * Defines the total number of rows in a table, grid, or treegrid.
     *
     * @see aria-rowindex.
     */
    'aria-rowcount'?: number | undefined;
    /**
     * Defines an element's row index or position with respect to the total number of rows within a
     * table, grid, or treegrid.
     *
     * @see aria-rowcount @see aria-rowspan.
     */
    'aria-rowindex'?: number | undefined;
    /**
     * Defines the number of rows spanned by a cell or gridcell within a table, grid, or treegrid.
     *
     * @see aria-rowindex @see aria-colspan.
     */
    'aria-rowspan'?: number | undefined;
    /**
     * Indicates the current "selected" state of various widgets.
     *
     * @see aria-checked @see aria-pressed.
     */
    'aria-selected'?: Booleanish | undefined;
    /**
     * Defines the number of items in the current set of listitems or treeitems. Not required if all
     * elements in the set are present in the DOM.
     *
     * @see aria-posinset.
     */
    'aria-setsize'?: number | undefined;
    /** Indicates if items in a table or grid are sorted in ascending or descending order. */
    'aria-sort'?: 'none' | 'ascending' | 'descending' | 'other' | undefined;
    /** Defines the maximum allowed value for a range widget. */
    'aria-valuemax'?: number | undefined;
    /** Defines the minimum allowed value for a range widget. */
    'aria-valuemin'?: number | undefined;
    /**
     * Defines the current value for a range widget.
     *
     * @see aria-valuetext.
     */
    'aria-valuenow'?: number | undefined;
    /** Defines the human readable text alternative of aria-valuenow for a range widget. */
    'aria-valuetext'?: string | undefined;
}

/** @public */
declare type AriaRole = 'alert' | 'alertdialog' | 'application' | 'article' | 'banner' | 'button' | 'cell' | 'checkbox' | 'columnheader' | 'combobox' | 'complementary' | 'contentinfo' | 'definition' | 'dialog' | 'directory' | 'document' | 'feed' | 'figure' | 'form' | 'grid' | 'gridcell' | 'group' | 'heading' | 'img' | 'link' | 'list' | 'listbox' | 'listitem' | 'log' | 'main' | 'marquee' | 'math' | 'menu' | 'menubar' | 'menuitem' | 'menuitemcheckbox' | 'menuitemradio' | 'navigation' | 'none' | 'note' | 'option' | 'presentation' | 'progressbar' | 'radio' | 'radiogroup' | 'region' | 'row' | 'rowgroup' | 'rowheader' | 'scrollbar' | 'search' | 'searchbox' | 'separator' | 'slider' | 'spinbutton' | 'status' | 'switch' | 'tab' | 'table' | 'tablist' | 'tabpanel' | 'term' | 'textbox' | 'timer' | 'toolbar' | 'tooltip' | 'tree' | 'treegrid' | 'treeitem' | (string & {});

declare type AsyncComputedCtx = {
    track: Tracker;
    cleanup: (callback: () => void) => void;
};

/** @public */
export declare type AsyncComputedFn<T> = (ctx: AsyncComputedCtx) => Promise<T>;

/** @public */
export declare interface AsyncComputedReadonlySignal<T = unknown> extends ComputedSignal<T> {
    /** Whether the signal is currently loading. */
    loading: boolean;
    /** The error that occurred while computing the signal. */
    error: Error | null;
    resolve(): Promise<T>;
}

/** @public */
export declare type AsyncComputedReturnType<T> = T extends Promise<infer T> ? AsyncComputedReadonlySignal<T> : AsyncComputedReadonlySignal<T>;

/**
 * # ================================
 *
 * AsyncComputedSignalImpl
 *
 * # ================================
 */
declare class AsyncComputedSignalImpl<T> extends ComputedSignalImpl<T, AsyncComputeQRL<T>> implements BackRef {
    $untrackedLoading$: boolean;
    $untrackedError$: Error | null;
    $loadingEffects$: null | Set<EffectSubscription>;
    $errorEffects$: null | Set<EffectSubscription>;
    $destroy$: NoSerialize<() => void> | null;
    private $promiseValue$;
    [_EFFECT_BACK_REF]: Map<EffectProperty | string, EffectSubscription> | null;
    constructor(container: Container | null, fn: AsyncComputeQRL<T>, flags?: SignalFlags | SerializationSignalFlags);
    /**
     * Loading is true if the signal is still waiting for the promise to resolve, false if the promise
     * has resolved or rejected.
     */
    get loading(): boolean;
    set untrackedLoading(value: boolean);
    get untrackedLoading(): boolean;
    /** The error that occurred when the signal was resolved. */
    get error(): Error | null;
    set untrackedError(value: Error | null);
    get untrackedError(): Error | null;
    invalidate(): void;
    resolve(): Promise<T>;
    $computeIfNeeded$(): boolean | undefined;
}

declare type AsyncComputeQRL<T> = QRLInternal<AsyncComputedFn<T>>;

/**
 * Replace given element's props with custom types and return all props specific to the element. Use
 * this for known props that are incorrect or missing.
 *
 * Uses Prettify so we see the special props for each element in editor hover
 */
declare type Augmented<E, A = {}> = Prettify<Filtered<E, A> & A>;

/** Class for back reference to the EffectSubscription */
declare abstract class BackRef {
    [_EFFECT_BACK_REF]: Map<EffectProperty | string, EffectSubscription> | null;
}

declare type BivariantQrlFn<ARGS extends any[], RETURN> = {
    /**
     * Resolve the QRL of closure and invoke it.
     *
     * @param args - Closure arguments.
     * @returns A promise of the return value of the closure.
     */
    bivarianceHack(...args: ARGS): Promise<RETURN>;
}['bivarianceHack'];

/** @public */
declare type Booleanish = boolean | `${boolean}`;

/**
 * Handles events for bind:checked
 *
 * @internal
 */
export declare const _chk: (_: any, element: HTMLInputElement) => void;

declare interface Chore<T extends ChoreType = ChoreType> {
    $type$: T;
    $idx$: number | string;
    $host$: HostElement;
    $target$: ChoreTarget | null;
    $payload$: unknown;
    $state$: ChoreState;
    $blockedChores$: ChoreArray | null;
    $startTime$: number | undefined;
    $endTime$: number | undefined;
    $resolve$: ((value: any) => void) | undefined;
    $reject$: ((reason?: any) => void) | undefined;
    $returnValue$: ValueOrPromise<ChoreReturnValue<T>>;
}

declare class ChoreArray extends Array<Chore> {
    add(value: Chore): number;
    delete(value: Chore): number;
}

declare type ChoreReturnValue<T extends ChoreType = ChoreType> = T extends ChoreType.RECOMPUTE_AND_SCHEDULE_EFFECTS | ChoreType.WAIT_FOR_QUEUE | ChoreType.NODE_PROP ? void : T extends ChoreType.NODE_DIFF | ChoreType.COMPONENT ? JSXOutput : unknown;

declare enum ChoreState {
    NONE = 0,
    RUNNING = 1,
    FAILED = 2,
    DONE = 3
}

declare type ChoreTarget = HostElement | QRLInternal<(...args: unknown[]) => unknown> | Signal | StoreTarget;

declare const enum ChoreType {
    MACRO = 240,
    MICRO = 15,
    /** Ensure that the QRL promise is resolved before processing next chores in the queue */
    QRL_RESOLVE = 1,
    RUN_QRL = 2,
    TASK = 3,
    NODE_DIFF = 4,
    NODE_PROP = 5,
    COMPONENT = 6,
    RECOMPUTE_AND_SCHEDULE_EFFECTS = 7,
    VISIBLE = 16,
    CLEANUP_VISIBLE = 32,
    WAIT_FOR_QUEUE = 255
}

/**
 * A class list can be a string, a boolean, an array, or an object.
 *
 * If it's an array, each item is a class list and they are all added.
 *
 * If it's an object, then the keys are class name strings, and the values are booleans that
 * determine if the class name string should be added or not.
 *
 * @public
 */
export declare type ClassList = string | undefined | null | false | Record<string, boolean | string | number | null | undefined> | ClassList[];

/** @internal */
export declare interface ClientContainer extends Container {
    document: _QDocument;
    element: _ContainerElement;
    qContainer: string;
    $locale$: string;
    qManifestHash: string;
    rootVNode: _ElementVNode;
    $journal$: VNodeJournal;
    $forwardRefs$: Array<number> | null;
    $flushEpoch$: number;
    parseQRL<T = unknown>(qrl: string): QRL<T>;
    $setRawState$(id: number, vParent: _ElementVNode | _VirtualVNode): void;
}

/**
 * Declare a Qwik component that can be used to create UI.
 *
 * Use `component$` to declare a Qwik component. A Qwik component is a special kind of component
 * that allows the Qwik framework to lazy load and execute the component independently of other Qwik
 * components as well as lazy load the component's life-cycle hooks and event handlers.
 *
 * Side note: You can also declare regular (standard JSX) components that will have standard
 * synchronous behavior.
 *
 * Qwik component is a facade that describes how the component should be used without forcing the
 * implementation of the component to be eagerly loaded. A minimum Qwik definition consists of:
 *
 * ### Example
 *
 * An example showing how to create a counter component:
 *
 * ```tsx
 * export interface CounterProps {
 *   initialValue?: number;
 *   step?: number;
 * }
 * export const Counter = component$((props: CounterProps) => {
 *   const state = useStore({ count: props.initialValue || 0 });
 *   return (
 *     <div>
 *       <span>{state.count}</span>
 *       <button onClick$={() => (state.count += props.step || 1)}>+</button>
 *     </div>
 *   );
 * });
 * ```
 *
 * - `component$` is how a component gets declared.
 * - `{ value?: number; step?: number }` declares the public (props) interface of the component.
 * - `{ count: number }` declares the private (state) interface of the component.
 *
 * The above can then be used like so:
 *
 * ```tsx
 * export const OtherComponent = component$(() => {
 *   return <Counter initialValue={100} />;
 * });
 * ```
 *
 * See also: `component`, `useCleanup`, `onResume`, `onPause`, `useOn`, `useOnDocument`,
 * `useOnWindow`, `useStyles`
 *
 * @public
 */
export declare const component$: <PROPS = unknown>(onMount: OnRenderFn<PROPS>) => Component<PROPS>;

/**
 * Type representing the Qwik component.
 *
 * `Component` is the type returned by invoking `component$`.
 *
 * ```tsx
 * interface MyComponentProps {
 *   someProp: string;
 * }
 * const MyComponent: Component<MyComponentProps> = component$((props: MyComponentProps) => {
 *   return <span>{props.someProp}</span>;
 * });
 * ```
 *
 * @public
 */
export declare type Component<PROPS = unknown> = FunctionComponent<PublicProps<PROPS>>;

/** @public */
export declare interface ComponentBaseProps {
    key?: string | number | null | undefined;
    'q:slot'?: string;
}

declare type ComponentChildren<PROPS> = PROPS extends {
    children: any;
} ? never : {
    children?: JSXChildren;
};

/** @public */
declare interface ComponentEntryStrategy {
    type: 'component';
    manual?: Record<string, string>;
}

/** @internal */
export declare const componentQrl: <PROPS extends Record<any, any>>(componentQrl: QRL<OnRenderFn<PROPS>>) => Component<PROPS>;

/** @public */
export declare type ComputedFn<T> = () => T;

/** @public */
export declare interface ComputedOptions {
    serializationStrategy?: SerializationStrategy;
    container?: Container;
}

/** @public */
export declare type ComputedReturnType<T> = T extends Promise<any> ? never : ComputedSignal<T>;

/**
 * A computed signal is a signal which is calculated from other signals. When the signals change,
 * the computed signal is recalculated, and if the result changed, all tasks which are tracking the
 * signal will be re-run and all components that read the signal will be re-rendered.
 *
 * @public
 */
export declare interface ComputedSignal<T> extends ReadonlySignal<T> {
    /**
     * Use this to force running subscribers, for example when the calculated value mutates but
     * remains the same object.
     */
    force(): void;
    /**
     * Use this to force recalculation and running subscribers, for example when the calculated value
     * mutates but remains the same object.
     */
    invalidate(): void;
}

/**
 * A signal which is computed from other signals.
 *
 * The value is available synchronously, but the computation is done lazily.
 */
declare class ComputedSignalImpl<T, S extends QRLInternal = ComputeQRL<T>> extends SignalImpl<T> implements BackRef {
    /**
     * The compute function is stored here.
     *
     * The computed functions must be executed synchronously (because of this we need to eagerly
     * resolve the QRL during the mark dirty phase so that any call to it will be synchronous). )
     */
    $computeQrl$: S;
    $flags$: SignalFlags | SerializationSignalFlags;
    [_EFFECT_BACK_REF]: Map<EffectProperty | string, EffectSubscription> | null;
    constructor(container: Container | null, fn: S, flags?: SignalFlags | SerializationSignalFlags);
    invalidate(): void;
    /**
     * Use this to force running subscribers, for example when the calculated value has mutated but
     * remained the same object
     */
    force(): void;
    get untrackedValue(): T;
    $computeIfNeeded$(): void;
    set value(_: any);
    get value(): any;
}

declare type ComputeQRL<T> = QRLInternal<ComputedFn<T>>;

/** @internal */
export declare const _CONST_PROPS: unique symbol;

/**
 * Effect is something which needs to happen (side-effect) due to signal value change.
 *
 * There are three types of effects:
 *
 * - `Task`: `useTask`, `useVisibleTask`, `useResource`
 * - `VNode` and `ISsrNode`: Either a component or `<Signal>`
 * - `Signal2`: A derived signal which contains a computation function.
 */
declare type Consumer = Task | _VNode | ISsrNode | SignalImpl;

declare interface Container {
    readonly $version$: string;
    readonly $scheduler$: Scheduler;
    readonly $storeProxyMap$: ObjToProxyMap;
    readonly $locale$: string;
    readonly $getObjectById$: (id: number | string) => any;
    readonly $serverData$: Record<string, any>;
    $currentUniqueId$: number;
    $buildBase$: string | null;
    handleError(err: any, $host$: HostElement | null): void;
    getParentHost(host: HostElement): HostElement | null;
    setContext<T>(host: HostElement, context: ContextId<T>, value: T): void;
    resolveContext<T>(host: HostElement, contextId: ContextId<T>): T | undefined;
    setHostProp<T>(host: HostElement, name: string, value: T): void;
    getHostProp<T>(host: HostElement, name: string): T | null;
    $appendStyle$(content: string, styleId: string, host: HostElement, scoped: boolean): void;
    /**
     * When component is about to be executed, it may add/remove children. This can cause problems
     * with the projection because deleting content will prevent the projection references from
     * looking up vnodes. Therefore before we execute the component we need to ensure that all of its
     * references to vnode are resolved.
     *
     * @param renderHost - Host element to ensure projection is resolved.
     */
    ensureProjectionResolved(host: HostElement): void;
    serializationCtxFactory(NodeConstructor: {
        new (...rest: any[]): {
            __brand__: 'SsrNode';
        };
    } | null, DomRefConstructor: {
        new (...rest: any[]): {
            __brand__: 'DomRef';
        };
    } | null, symbolToChunkResolver: SymbolToChunkResolver, writer?: StreamWriter): SerializationContext;
}

/** @internal */
export declare interface _ContainerElement extends HTMLElement {
    qContainer?: ClientContainer;
    /**
     * Map of element ID to Element. If VNodeData has a reference to an element, then it is added to
     * this map for later retrieval.
     *
     * Once retrieved the element is replaced with its VNode.
     *
     * NOTE: This map leaks memory! Once the application is resumed we don't know which element IDs
     * are still in the deserialized state. we will probably need a GC cycle. Some process running in
     * the idle time which processes few elements at a time to see if they are still referenced and
     * removes them from the map if they are not.
     */
    qVNodeRefs?: Map<number, Element | _ElementVNode>;
    /** String from `<script type="qwik/vnode">` tag. */
    qVnodeData?: string;
}

/**
 * ContextId is a typesafe ID for your context.
 *
 * Context is a way to pass stores to the child components without prop-drilling.
 *
 * Use `createContextId()` to create a `ContextId`. A `ContextId` is just a serializable identifier
 * for the context. It is not the context value itself. See `useContextProvider()` and
 * `useContext()` for the values. Qwik needs a serializable ID for the context so that the it can
 * track context providers and consumers in a way that survives resumability.
 *
 * ### Example
 *
 * ```tsx
 * // Declare the Context type.
 * interface TodosStore {
 *   items: string[];
 * }
 * // Create a Context ID (no data is saved here.)
 * // You will use this ID to both create and retrieve the Context.
 * export const TodosContext = createContextId<TodosStore>('Todos');
 *
 * // Example of providing context to child components.
 * export const App = component$(() => {
 *   useContextProvider(
 *     TodosContext,
 *     useStore<TodosStore>({
 *       items: ['Learn Qwik', 'Build Qwik app', 'Profit'],
 *     })
 *   );
 *
 *   return <Items />;
 * });
 *
 * // Example of retrieving the context provided by a parent component.
 * export const Items = component$(() => {
 *   const todos = useContext(TodosContext);
 *   return (
 *     <ul>
 *       {todos.items.map((item) => (
 *         <li>{item}</li>
 *       ))}
 *     </ul>
 *   );
 * });
 *
 * ```
 *
 * @public
 */
export declare interface ContextId<STATE> {
    /** Design-time property to store type information for the context. */
    readonly __brand_context_type__: STATE;
    /** A unique ID for the context. */
    readonly id: string;
}

/**
 * Low-level API for platform abstraction.
 *
 * Different platforms (browser, node, service workers) may have different ways of handling things
 * such as `requestAnimationFrame` and imports. To make Qwik platform-independent Qwik uses the
 * `CorePlatform` API to access the platform API.
 *
 * `CorePlatform` also is responsible for importing symbols. The import map is different on the
 * client (browser) then on the server. For this reason, the server has a manifest that is used to
 * map symbols to javascript chunks. The manifest is encapsulated in `CorePlatform`, for this
 * reason, the `CorePlatform` can't be global as there may be multiple applications running at
 * server concurrently.
 *
 * This is a low-level API and there should not be a need for you to access this.
 *
 * @public
 */
export declare interface CorePlatform {
    /**
     * True of running on the server platform.
     *
     * @returns True if we are running on the server (not the browser.)
     */
    isServer: boolean;
    /**
     * Retrieve a symbol value from QRL.
     *
     * Qwik needs to lazy load data and closures. For this Qwik uses QRLs that are serializable
     * references of resources that are needed. The QRLs contain all the information necessary to
     * retrieve the reference using `importSymbol`.
     *
     * Why not use `import()`? Because `import()` is relative to the current file, and the current
     * file is always the Qwik framework. So QRLs have additional information that allows them to
     * serialize imports relative to application base rather than the Qwik framework file.
     *
     * @param element - The element against which the `url` is resolved. Used to locate the container
     *   root and `q:base` attribute.
     * @param url - Relative URL retrieved from the attribute that needs to be resolved against the
     *   container `q:base` attribute.
     * @param symbol - The name of the symbol to import.
     * @returns A promise that resolves to the imported symbol.
     */
    importSymbol: (containerEl: Element | undefined, url: string | URL | undefined | null, symbol: string) => ValueOrPromise<any>;
    /**
     * Perform operation on next request-animation-frame.
     *
     * @param fn - The function to call when the next animation frame is ready.
     */
    raf: (fn: () => any) => Promise<any>;
    /**
     * Retrieve chunk name for the symbol.
     *
     * When the application is running on the server the symbols may be imported from different files
     * (as server build is typically a single javascript chunk.) For this reason, it is necessary to
     * convert the chunks from server format to client (browser) format. This is done by looking up
     * symbols (which are globally unique) in the manifest. (Manifest is the mapping of symbols to the
     * client chunk names.)
     *
     * @param symbolName - Resolve `symbolName` against the manifest and return the chunk that
     *   contains the symbol.
     */
    chunkForSymbol: (symbolName: string, chunk: string | null, parent?: string) => readonly [symbol: string, chunk: string] | undefined;
}

/** This corrects the TS definition for ToggleEvent @public */
export declare interface CorrectedToggleEvent extends Event {
    readonly newState: 'open' | 'closed';
    readonly prevState: 'open' | 'closed';
}

/**
 * Create an async computed signal which is calculated from the given QRL. A computed signal is a
 * signal which is calculated from other signals or async operation. When the signals change, the
 * computed signal is recalculated.
 *
 * The QRL must be a function which returns the value of the signal. The function must not have side
 * effects, and it can be async.
 *
 * @public
 */
export declare const createAsyncComputed$: <T>(qrl: () => Promise<T>, options?: ComputedOptions) => AsyncComputedReturnType<T>;

/** @internal */
export declare const createAsyncComputedQrl: <T>(qrl: QRL<(ctx: AsyncComputedCtx) => Promise<T>>, options?: ComputedOptions) => AsyncComputedSignalImpl<T>;

/**
 * Create a computed signal which is calculated from the given QRL. A computed signal is a signal
 * which is calculated from other signals. When the signals change, the computed signal is
 * recalculated.
 *
 * The QRL must be a function which returns the value of the signal. The function must not have side
 * effects, and it must be synchronous.
 *
 * If you need the function to be async, use `useAsyncComputed$` instead.
 *
 * @public
 */
export declare const createComputed$: <T>(qrl: () => T, options?: ComputedOptions) => ComputedReturnType<T>;

/** @internal */
export declare const createComputedQrl: <T>(qrl: QRL<() => T>, options?: ComputedOptions) => ComputedSignalImpl<T>;

/**
 * Create a context ID to be used in your application. The name should be written with no spaces.
 *
 * Context is a way to pass stores to the child components without prop-drilling.
 *
 * Use `createContextId()` to create a `ContextId`. A `ContextId` is just a serializable identifier
 * for the context. It is not the context value itself. See `useContextProvider()` and
 * `useContext()` for the values. Qwik needs a serializable ID for the context so that the it can
 * track context providers and consumers in a way that survives resumability.
 *
 * ### Example
 *
 * ```tsx
 * // Declare the Context type.
 * interface TodosStore {
 *   items: string[];
 * }
 * // Create a Context ID (no data is saved here.)
 * // You will use this ID to both create and retrieve the Context.
 * export const TodosContext = createContextId<TodosStore>('Todos');
 *
 * // Example of providing context to child components.
 * export const App = component$(() => {
 *   useContextProvider(
 *     TodosContext,
 *     useStore<TodosStore>({
 *       items: ['Learn Qwik', 'Build Qwik app', 'Profit'],
 *     })
 *   );
 *
 *   return <Items />;
 * });
 *
 * // Example of retrieving the context provided by a parent component.
 * export const Items = component$(() => {
 *   const todos = useContext(TodosContext);
 *   return (
 *     <ul>
 *       {todos.items.map((item) => (
 *         <li>{item}</li>
 *       ))}
 *     </ul>
 *   );
 * });
 *
 * ```
 *
 * @param name - The name of the context.
 * @public
 */
export declare const createContextId: <STATE = unknown>(name: string) => ContextId<STATE>;

declare const createScheduler: (container: Container, journalFlush: () => void, choreQueue: ChoreArray, blockedChores: Set<Chore>, runningChores: Set<Chore>) => {
    (type: ChoreType.QRL_RESOLVE, ignore: null, target: ComputeQRL<any> | AsyncComputeQRL<any>): Chore<ChoreType.QRL_RESOLVE>;
    (type: ChoreType.WAIT_FOR_QUEUE): Chore<ChoreType.WAIT_FOR_QUEUE>;
    (type: ChoreType.RECOMPUTE_AND_SCHEDULE_EFFECTS, host: HostElement | null, target: Signal<unknown> | StoreTarget, effects: Set<EffectSubscription> | null): Chore<ChoreType.RECOMPUTE_AND_SCHEDULE_EFFECTS>;
    (type: ChoreType.TASK | ChoreType.VISIBLE, task: Task): Chore<ChoreType.TASK | ChoreType.VISIBLE>;
    (type: ChoreType.RUN_QRL, host: HostElement, target: QRLInternal<(...args: unknown[]) => unknown>, args: unknown[]): Chore<ChoreType.RUN_QRL>;
    (type: ChoreType.COMPONENT, host: HostElement, qrl: QRLInternal<OnRenderFn<unknown>>, props: Props | null): Chore<ChoreType.COMPONENT>;
    (type: ChoreType.NODE_DIFF, host: HostElement, target: HostElement, value: JSXOutput | Signal): Chore<ChoreType.NODE_DIFF>;
    (type: ChoreType.NODE_PROP, host: HostElement, prop: string, value: any): Chore<ChoreType.NODE_PROP>;
    (type: ChoreType.CLEANUP_VISIBLE, task: Task): Chore<ChoreType.CLEANUP_VISIBLE>;
};

/**
 * Create a signal that holds a custom serializable value. See {@link useSerializer$} for more
 * details.
 *
 * @public
 */
export declare const createSerializer$: <T, S>(arg: SerializerArg<T, S>) => T extends Promise<any> ? never : SerializerSignal<T>;

/** @internal */
export declare const createSerializerQrl: <T, S>(arg: QRL<{
    serialize: (data: S | undefined) => T;
    deserialize: (data: T) => S;
    initial?: S;
}>) => SerializerSignalImpl<T, S>;

/**
 * Creates a Signal with the given value. If no value is given, the signal is created with
 * `undefined`.
 *
 * @public
 */
export declare const createSignal: {
    <T>(): Signal<T | undefined>;
    <T>(value: T): Signal<T>;
};

/** @public */
export declare interface CSSProperties extends CSS_2.Properties<string | number>, CSS_2.PropertiesHyphen<string | number> {
    /**
     * The index signature was removed to enable closed typing for style using CSSType. You're able to
     * use type assertion or module augmentation to add properties or an index signature of your own.
     *
     * For examples and more information, visit:
     * https://github.com/frenic/csstype#what-should-i-do-when-i-get-type-errors
     */
    [v: `--${string}`]: string | number | undefined;
}

/** @public */
declare interface DescriptorBase<T = unknown, B = unknown> extends BackRef {
    $flags$: number;
    $index$: number;
    $el$: HostElement;
    $qrl$: QRLInternal<T>;
    $state$: B | undefined;
    $destroy$: NoSerialize<() => void> | null;
}

/**
 * Deserialize data from string to an array of objects.
 *
 * @param rawStateData - Data to deserialize
 * @param element - Container element
 * @internal
 */
export declare function _deserialize(rawStateData: string | null, element?: unknown): unknown[];

declare interface DeserializeContainer {
    $getObjectById$: (id: number | string) => unknown;
    element: HTMLElement | null;
    getSyncFn: (id: number) => (...args: unknown[]) => unknown;
    $state$?: unknown[];
    $storeProxyMap$: ObjToProxyMap;
    $forwardRefs$: Array<number> | null;
    readonly $scheduler$: Scheduler | null;
}

/** @public */
export declare interface DevJSX {
    fileName: string;
    lineNumber: number;
    columnNumber: number;
    stack?: string;
}

/** The Qwik-specific attributes that DOM elements accept @public */
export declare interface DOMAttributes<EL extends Element> extends DOMAttributesBase<EL>, QwikEvents<EL> {
    class?: ClassList | Signal<ClassList> | undefined;
}

declare interface DOMAttributesBase<EL extends Element> extends QwikIntrinsicAttributes, PreventDefault, StopPropagation, RefAttr<EL> {
    dangerouslySetInnerHTML?: string | undefined;
}

/** @internal */
declare class DomContainer extends _SharedContainer implements ClientContainer {
    element: _ContainerElement;
    qContainer: string;
    qManifestHash: string;
    rootVNode: _ElementVNode;
    document: _QDocument;
    $journal$: VNodeJournal;
    $rawStateData$: unknown[];
    $storeProxyMap$: ObjToProxyMap;
    $qFuncs$: Array<(...args: unknown[]) => unknown>;
    $instanceHash$: string;
    $forwardRefs$: Array<number> | null;
    vNodeLocate: (id: string | Element) => _VNode;
    private $stateData$;
    private $styleIds$;
    constructor(element: _ContainerElement);
    $setRawState$(id: number, vParent: _ElementVNode | _VirtualVNode): void;
    parseQRL<T = unknown>(qrl: string): QRL<T>;
    handleError(err: any, host: _VNode | null): void;
    setContext<T>(host: _VNode, context: ContextId<T>, value: T): void;
    resolveContext<T>(host: _VNode, contextId: ContextId<T>): T | undefined;
    getParentHost(host: _VNode): _VNode | null;
    setHostProp<T>(host: HostElement, name: string, value: T): void;
    getHostProp<T>(host: HostElement, name: string): T | null;
    ensureProjectionResolved(vNode: _VirtualVNode): void;
    $getObjectById$: (id: number | string) => unknown;
    getSyncFn(id: number): (...args: unknown[]) => unknown;
    $appendStyle$(content: string, styleId: string, host: _VirtualVNode, scoped: boolean): void;
    /** Set the server data for the Qwik Router. */
    private $setServerData$;
}
export { DomContainer }
export { DomContainer as _DomContainer }

declare type DomRef = {
    $ssrNode$: SsrNode;
};

/** @internal */
export declare const _dumpState: (state: unknown[], color?: boolean, prefix?: string, limit?: number | null) => string;

/** @internal */
export declare const _EFFECT_BACK_REF: unique symbol;

declare const enum EffectProperty {
    COMPONENT = ":",
    VNODE = "."
}

/**
 * An effect consumer plus type of effect, back references to producers and additional data
 *
 * An effect can be trigger by one or more of signal inputs. The first step of re-running an effect
 * is to clear its subscriptions so that the effect can re add new set of subscriptions. In order to
 * clear the subscriptions we need to store them here.
 *
 * Imagine you have effect such as:
 *
 * ```
 * function effect1() {
 *   console.log(signalA.value ? signalB.value : 'default');
 * }
 * ```
 *
 * In the above case the `signalB` needs to be unsubscribed when `signalA` is falsy. We do this by
 * always clearing all of the subscriptions
 *
 * The `EffectSubscription` stores
 *
 * ```
 * subscription1 = [effectConsumer1, EffectProperty.COMPONENT, Set[(signalA, signalB)]];
 * ```
 *
 * The `signal1` and `signal2` back references are needed to "clear" existing subscriptions.
 *
 * Both `signalA` as well as `signalB` will have a reference to `subscription` to the so that the
 * effect can be scheduled if either `signalA` or `signalB` triggers. The `subscription1` is shared
 * between the signals.
 *
 * The second position `EffectProperty|string` store the property name of the effect.
 *
 * - Property name of the VNode
 * - `EffectProperty.COMPONENT` if component
 * - `EffectProperty.VNODE` if VNode
 */
declare type EffectSubscription = [
Consumer,
// EffectSubscriptionProp.CONSUMER
EffectProperty | string,
// EffectSubscriptionProp.PROPERTY or string for attributes
Set<SignalImpl | StoreTarget> | null,
// EffectSubscriptionProp.BACK_REF
_SubscriptionData | null
];

/** @internal */
export declare class _ElementVNode extends _VNode {
    firstChild: _VNode | null | undefined;
    lastChild: _VNode | null | undefined;
    element: QElement;
    elementName: string | undefined;
    constructor(flags: _VNodeFlags, parent: _ElementVNode | _VirtualVNode | null, previousSibling: _VNode | null | undefined, nextSibling: _VNode | null | undefined, firstChild: _VNode | null | undefined, lastChild: _VNode | null | undefined, element: QElement, elementName: string | undefined);
}

/** @internal */
export declare const _EMPTY_ARRAY: any[];

/** @public */
declare type EntryStrategy = InlineEntryStrategy | HoistEntryStrategy | SingleEntryStrategy | HookEntryStrategy | SegmentEntryStrategy | ComponentEntryStrategy | SmartEntryStrategy;

/** @public */
export declare interface ErrorBoundaryStore {
    error: any | undefined;
}

/** @public */
export declare const event$: <T>(qrl: T) => QRL_2<T>;

declare type EventCorrectionMap = {
    auxclick: PointerEvent;
    beforetoggle: CorrectedToggleEvent;
    click: PointerEvent;
    dblclick: PointerEvent;
    input: InputEvent;
    toggle: CorrectedToggleEvent;
};

declare type EventFromName<T extends string> = LcEvent<T>;

/**
 * A DOM event handler
 *
 * @public
 */
export declare type EventHandler<EV = Event, EL = Element> = {
    bivarianceHack(event: EV, element: EL): any;
}['bivarianceHack'];

declare type EventQRL<T extends string = AllEventKeys> = QRL<EventHandler<EventFromName<T>, Element>> | undefined;

/** @internal */
export declare const eventQrl: <T>(qrl: QRL<T>) => QRL<T>;

declare type FilterBase<T> = {
    [K in keyof T as K extends string ? K extends Uppercase<K> ? never : any extends T[K] ? never : false extends IsAcceptableDOMValue<T[K]> ? never : IsReadOnlyKey<T, K> extends true ? never : K extends UnwantedKeys ? never : K : never]?: T[K];
};

/** Only keep props that are specific to the element and make partial */
declare type Filtered<T, A = {}> = {
    [K in keyof Omit<FilterBase<T>, keyof HTMLAttributes<any> | keyof A>]?: T[K];
};

/** @internal */
export declare const _fnSignal: <T extends (...args: any) => any>(fn: T, args: Parameters<T>, fnStr?: string) => WrappedSignalImpl<any>;

/**
 * Force a store to recompute and schedule effects.
 *
 * @public
 */
export declare const forceStoreEffects: (value: StoreTarget, prop: keyof StoreTarget) => void;

/** @public */
export declare const Fragment: FunctionComponent<{
    children?: any;
    key?: string | number | null;
}>;

/**
 * Any function taking a props object that returns JSXOutput.
 *
 * The `key`, `flags` and `dev` parameters are for internal use.
 *
 * @public
 */
export declare type FunctionComponent<P = unknown> = {
    renderFn(props: P, key: string | null, flags: number, dev?: DevJSX): JSXOutput;
}['renderFn'];

/** Used by the optimizer for spread props operations @internal */
export declare const _getConstProps: (props: PropsProxy | Record<string, unknown> | null | undefined) => Props | null;

/** @internal */
export declare const _getContextContainer: () => ClientContainer | undefined;

/** @internal */
export declare const _getContextElement: () => unknown;

/** @internal */
export declare const _getContextEvent: () => unknown;

/** @public */
declare function getDomContainer(element: Element | _VNode): ClientContainer;
export { getDomContainer as _getDomContainer }
export { getDomContainer }

/**
 * Retrieve the current locale.
 *
 * If no current locale and there is no `defaultLocale` the function throws an error.
 *
 * @returns The locale.
 * @public
 */
export declare function getLocale(defaultLocale?: string): string;

/**
 * Retrieve the `CorePlatform`.
 *
 * The `CorePlatform` is also responsible for retrieving the Manifest, that contains mappings from
 * symbols to javascript import chunks. For this reason, `CorePlatform` can't be global, but is
 * specific to the application currently running. On server it is possible that many different
 * applications are running in a single server instance, and for this reason the `CorePlatform` is
 * associated with the application document.
 *
 * @param docOrNode - The document (or node) of the application for which the platform is needed.
 * @public
 */
export declare const getPlatform: () => CorePlatform;

/** @internal */
export declare function _getQContainerElement(element: Element | _VNode): Element | null;

/** Used by the optimizer for spread props operations @internal */
export declare const _getVarProps: (props: PropsProxy | Record<string, unknown> | null | undefined) => Props | null;

/** @public */
declare interface GlobalInjections {
    tag: string;
    attributes?: {
        [key: string]: string;
    };
    location: 'head' | 'body';
}

/**
 * The legacy transform, used by some JSX transpilers. The optimizer normally replaces this with
 * optimized calls, with the same caveat as `jsx()`.
 *
 * @public
 */
declare function h<TYPE extends string | FunctionComponent<PROPS>, PROPS extends {} = {}>(type: TYPE, props?: PROPS | null, ...children: any[]): JSXNode<TYPE>;
export { h as createElement }
export { h }

/**
 * @returns True if the store has effects for the given prop
 * @internal
 */
export declare const _hasStoreEffects: (value: StoreTarget, prop: keyof StoreTarget) => boolean;

/** @public */
declare interface HoistEntryStrategy {
    type: 'hoist';
}

/** @deprecated Use SegmentStrategy instead */
declare interface HookEntryStrategy {
    type: 'hook';
    manual?: Record<string, string>;
}

declare type HostElement = _VNode | ISsrNode;

/** @public */
declare type HTMLAttributeAnchorTarget = '_self' | '_blank' | '_parent' | '_top' | (string & {});

/** @public */
declare type HTMLAttributeReferrerPolicy = ReferrerPolicy;

/** @public */
declare interface HTMLAttributes<E extends Element> extends HTMLElementAttrs, DOMAttributes<E> {
}

declare interface HTMLAttributesBase extends AriaAttributes {
    /** @deprecated Use `class` instead */
    className?: ClassList | undefined;
    contentEditable?: 'true' | 'false' | 'inherit' | undefined;
    style?: CSSProperties | string | undefined;
    role?: AriaRole | undefined;
    about?: string | undefined;
    datatype?: string | undefined;
    inlist?: any;
    property?: string | undefined;
    resource?: string | undefined;
    typeof?: string | undefined;
    vocab?: string | undefined;
    autoCapitalize?: 'none' | 'off' | 'sentences' | 'on' | 'words' | 'characters' | undefined;
    autoCorrect?: string | undefined;
    autoFocus?: boolean | undefined;
    autoSave?: string | undefined;
    hidden?: boolean | 'hidden' | 'until-found' | undefined;
    itemProp?: string | undefined;
    itemScope?: boolean | undefined;
    itemType?: string | und