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<a href="../../index.html">all files</a> / <a href="index.html">src/hyperscript/</a> h.ts
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<div class='fl pad1y space-right2'>
<span class="strong">92.65% </span>
<span class="quiet">Statements</span>
<span class='fraction'>63/68</span>
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<div class='fl pad1y space-right2'>
<span class="strong">78.85% </span>
<span class="quiet">Branches</span>
<span class='fraction'>41/52</span>
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<span class="strong">100% </span>
<span class="quiet">Functions</span>
<span class='fraction'>8/8</span>
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<div class='fl pad1y space-right2'>
<span class="strong">91.23% </span>
<span class="quiet">Lines</span>
<span class='fraction'>52/57</span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { HtmlTagNames, SvgTagNames, VNode, VNodeProps } from '../types'
import { MostlyVNode, addSvgNamespace } from './VNode'
import { isPrimitive, isString } from '../helpers'
export const h: HyperscriptFn = function(): VNode {
const tagName: string | ComponentFn = arguments[0] // required
const childrenOrText: HyperscriptChildren = slice(2, arguments) // optional
let props: VNodeProps = {}
let children: Array<VNode> | undefined
let text: string | undefined
if (childrenOrText) {
props = arguments[1] || {}
if (isArrayLike(childrenOrText)) children = flattenArrayLike(childrenOrText) as Array<VNode>
else <span class="missing-if-branch" title="else path not taken" >E</span>if (isPrimitive(childrenOrText)) text = String(childrenOrText)
} else <span class="missing-if-branch" title="else path not taken" >E</span>if (arguments[1]) {
const childrenOrTextOrProps = arguments[1]
if (isArrayLike(childrenOrTextOrProps))
children = flattenArrayLike(childrenOrTextOrProps) as Array<VNode>
else if (isPrimitive(childrenOrTextOrProps)) text = String(childrenOrTextOrProps)
else props = childrenOrTextOrProps || <span class="branch-1 cbranch-no" title="branch not covered" >{}</span>
}
<span class="missing-if-branch" title="if path not taken" >I</span>if (typeof tagName === 'function') {
<span class="cstat-no" title="statement not covered" > const childVNodes = Array.isArray(children)</span>
? children
: text ? [ MostlyVNode.createText(text) ] : []
<span class="cstat-no" title="statement not covered" > const computedVNode = tagName(props, childVNodes)</span>
<span class="cstat-no" title="statement not covered" > if (Array.isArray(computedVNode.children)) {</span>
<span class="cstat-no" title="statement not covered" > computedVNode.children = sanitizeChildren(computedVNode.children, computedVNode)</span>
}
<span class="cstat-no" title="statement not covered" > return computedVNode</span>
}
const isSvg = tagName === 'svg'
const vNode = isSvg
? MostlyVNode.createSvg(tagName, props, undefined, text)
: MostlyVNode.create(tagName, props, undefined, text)
if (Array.isArray(children)) vNode.children = sanitizeChildren(children, vNode)
if (isSvg) addSvgNamespace(vNode)
return vNode
}
function slice<A>(from: number, arrLike: ArrayLike<VNode | string | number>): HyperscriptChildren {
const arr = [] as Array<VNode | string | number>
if (arrLike.length === 1) return arrLike[0]
for (let i = from; i < arrLike.length; ++i) arr.push(arrLike[i])
if (arr.length === 0) return null
return arr
}
function isArrayLike<T>(x: any): x is ArrayLike<T> {
const typeOf = typeof x
return x && typeof x.length === 'number' && typeOf !== 'function' && typeOf !== 'string'
}
function flattenArrayLike<A>(arrayLike: ArrayLike<A | ArrayLike<A>>, arr: Array<A> = []): Array<A> {
forEach(
(x: A | ArrayLike<A>) => (isArrayLike(x) ? flattenArrayLike(x, arr) : arr.push(x)),
arrayLike
)
return arr
}
function forEach<A>(fn: (value: A) => void, list: ArrayLike<A>): void {
for (let i = 0; i < list.length; ++i) fn(list[i])
}
function sanitizeChildren(childrenOrText: Array<VNode>, parent: VNode): Array<VNode> {
childrenOrText = childrenOrText
.filter((x) => x !== null || <span class="branch-1 cbranch-no" title="branch not covered" >x !== undefined)</span> // remove possible null values
const childCount: number = childrenOrText.length
const children: Array<VNode> = Array(childCount)
for (let i = 0; i < childCount; ++i) {
const vNodeOrText = childrenOrText[i]
if (isString(vNodeOrText) || typeof vNodeOrText === 'number')
children[i] = MostlyVNode.createText(String(vNodeOrText))
else children[i] = vNodeOrText
if (parent.scope && !children[i].scope) children[i].scope = parent.scope
children[i].parent = parent
}
return children
}
export type VNodeChildren = string | number | null | VNode
export type HyperscriptChildren =
| VNodeChildren
| ArrayLike<VNodeChildren>
| ArrayLike<VNodeChildren | ArrayLike<VNodeChildren>>
| ArrayLike<ArrayLike<VNodeChildren>>
export interface ComponentFn {
(props: VNodeProps, children: Array<string | null | VNode>): VNode
}
export type ValidTagNames = HtmlTagNames | SvgTagNames | ComponentFn
export interface HyperscriptFn {
(tagName: ValidTagNames): VNode
(tagName: ValidTagNames, props: VNodeProps<any>): VNode
(tagName: ValidTagNames, children: HyperscriptChildren): VNode
(tagName: ValidTagNames, props: VNodeProps<any>, children: HyperscriptChildren): VNode
<T extends Node, Props extends VNodeProps<Element> = VNodeProps<Element>>(
tagName: ValidTagNames
): VNode<T, Props>
<T extends Node, Props extends VNodeProps<Element> = VNodeProps<Element>>(
tagName: ValidTagNames,
props: Props
): VNode<T>
<T extends Node, Props extends VNodeProps<Element> = VNodeProps<Element>>(
tagName: ValidTagNames,
children: HyperscriptChildren
): VNode<T, Props>
<T extends Node, Props extends VNodeProps<Element> = VNodeProps<Element>>(
tagName: ValidTagNames,
props: Props,
children: HyperscriptChildren
): VNode<T, Props>
}
</pre></td></tr>
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