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van-0.11.11.d.ts
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van-0.11.11.d.ts
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export type State<T = any> = {
val: T
onnew(l: (val: T, oldVal: T) => void): void
}
// Defining readonly view of State<T> for covariance.
// Basically we want State<string> implements StateView<string | number>
export interface StateView<T = any> {
readonly val: T
}
export type Primitive = string | number | boolean | bigint
export type PropValue = Primitive | Function | null
export interface DerivedProp {
readonly deps: readonly StateView<unknown>[]
readonly f: (...args: readonly any[]) => PropValue
}
export interface Props {
readonly [key: string]: PropValue | StateView<PropValue> | DerivedProp
}
export type ChildDom = Primitive | Node | StateView<Primitive | null | undefined> | readonly ChildDom[]
export type TagFunc<Result> = (first?: Props | ChildDom, ...rest: readonly ChildDom[]) => Result
type Tags = {
readonly [key: string]: TagFunc<Element>
// Register known element types
// Source: https://developer.mozilla.org/en-US/docs/Web/HTML/Element
// Main root
readonly html: TagFunc<HTMLHtmlElement>
// Document metadata
readonly base: TagFunc<HTMLBaseElement>
readonly head: TagFunc<HTMLHeadElement>
readonly link: TagFunc<HTMLLinkElement>
readonly meta: TagFunc<HTMLMetaElement>
readonly style: TagFunc<HTMLStyleElement>
readonly title: TagFunc<HTMLTitleElement>
// Sectioning root
readonly body: TagFunc<HTMLBodyElement>
// Content sectioning
readonly h1: TagFunc<HTMLHeadingElement>
readonly h2: TagFunc<HTMLHeadingElement>
readonly h3: TagFunc<HTMLHeadingElement>
readonly h4: TagFunc<HTMLHeadingElement>
readonly h5: TagFunc<HTMLHeadingElement>
readonly h6: TagFunc<HTMLHeadingElement>
// Text content
readonly blockquote: TagFunc<HTMLQuoteElement>
readonly div: TagFunc<HTMLDivElement>
readonly dl: TagFunc<HTMLDListElement>
readonly hr: TagFunc<HTMLHRElement>
readonly li: TagFunc<HTMLLIElement>
readonly menu: TagFunc<HTMLMenuElement>
readonly ol: TagFunc<HTMLOListElement>
readonly p: TagFunc<HTMLParagraphElement>
readonly pre: TagFunc<HTMLPreElement>
readonly ul: TagFunc<HTMLUListElement>
// Inline text semantics
readonly a: TagFunc<HTMLAnchorElement>
readonly br: TagFunc<HTMLBRElement>
readonly data: TagFunc<HTMLDataElement>
readonly q: TagFunc<HTMLQuoteElement>
readonly span: TagFunc<HTMLSpanElement>
readonly time: TagFunc<HTMLTimeElement>
// Image and multimedia
readonly area: TagFunc<HTMLAreaElement>
readonly audio: TagFunc<HTMLAudioElement>
readonly img: TagFunc<HTMLImageElement>
readonly map: TagFunc<HTMLMapElement>
readonly track: TagFunc<HTMLTrackElement>
readonly video: TagFunc<HTMLVideoElement>
// Embedded content
readonly embed: TagFunc<HTMLEmbedElement>
readonly iframe: TagFunc<HTMLIFrameElement>
readonly object: TagFunc<HTMLObjectElement>
readonly picture: TagFunc<HTMLPictureElement>
readonly source: TagFunc<HTMLSourceElement>
// Scripting
readonly canvas: TagFunc<HTMLCanvasElement>
readonly script: TagFunc<HTMLScriptElement>
// Demarcating edits
readonly del: TagFunc<HTMLModElement>
readonly ins: TagFunc<HTMLModElement>
// Table content
readonly caption: TagFunc<HTMLTableCaptionElement>
readonly col: TagFunc<HTMLTableColElement>
readonly colgroup: TagFunc<HTMLTableColElement>
readonly table: TagFunc<HTMLTableElement>
readonly tbody: TagFunc<HTMLTableSectionElement>
readonly td: TagFunc<HTMLTableCellElement>
readonly tfoot: TagFunc<HTMLTableSectionElement>
readonly th: TagFunc<HTMLTableCellElement>
readonly thead: TagFunc<HTMLTableSectionElement>
readonly tr: TagFunc<HTMLTableRowElement>
// Forms
readonly button: TagFunc<HTMLButtonElement>
readonly datalist: TagFunc<HTMLDataListElement>
readonly fieldset: TagFunc<HTMLFieldSetElement>
readonly form: TagFunc<HTMLFormElement>
readonly input: TagFunc<HTMLInputElement>
readonly label: TagFunc<HTMLLabelElement>
readonly legend: TagFunc<HTMLLegendElement>
readonly meter: TagFunc<HTMLMeterElement>
readonly optgroup: TagFunc<HTMLOptGroupElement>
readonly option: TagFunc<HTMLOptionElement>
readonly output: TagFunc<HTMLOutputElement>
readonly progress: TagFunc<HTMLProgressElement>
readonly select: TagFunc<HTMLSelectElement>
readonly textarea: TagFunc<HTMLTextAreaElement>
// Interactive elements
readonly details: TagFunc<HTMLDetailsElement>
readonly dialog: TagFunc<HTMLDialogElement>
// Web Components
readonly slot: TagFunc<HTMLSlotElement>
readonly template: TagFunc<HTMLTemplateElement>
}
type BindFuncArgs<T extends StateView[]> = T extends [infer OnlyOne extends StateView] ?
[OnlyOne['val']] : T extends [infer First extends StateView, ...infer Rest extends StateView[]] ?
[First['val'], ...BindFuncArgs<Rest>] : never
type BindFunc<T extends StateView[]> = (...arg: [...BindFuncArgs<T>, Element, ...BindFuncArgs<T>]) => Primitive | Node | null | undefined
declare function bind<StateViews extends StateView[]>(...args: [...StateViews, BindFunc<StateViews>]): Node | []
export type Van = {
readonly state: <T>(initVal: T) => State<T>
readonly add: (dom: Element, ...children: readonly ChildDom[]) => Element
readonly tags: Tags
readonly bind: typeof bind
}
declare const van: Van
export default van