31 lines
1.2 KiB
JavaScript
31 lines
1.2 KiB
JavaScript
"use strict"
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function Vnode(tag, key, attrs, children, text, dom) {
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return {tag: tag, key: key, attrs: attrs, children: children, text: text, dom: dom, domSize: undefined, state: undefined, events: undefined, instance: undefined}
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}
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Vnode.normalize = function(node) {
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if (Array.isArray(node)) return Vnode("[", undefined, undefined, Vnode.normalizeChildren(node), undefined, undefined)
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if (node == null || typeof node === "boolean") return null
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if (typeof node === "object") return node
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return Vnode("#", undefined, undefined, String(node), undefined, undefined)
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}
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Vnode.normalizeChildren = function(input) {
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var children = []
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if (input.length) {
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var isKeyed = input[0] != null && input[0].key != null
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// Note: this is a *very* perf-sensitive check.
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// Fun fact: merging the loop like this is somehow faster than splitting
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// it, noticeably so.
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for (var i = 1; i < input.length; i++) {
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if ((input[i] != null && input[i].key != null) !== isKeyed) {
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throw new TypeError("Vnodes must either always have keys or never have keys!")
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}
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}
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for (var i = 0; i < input.length; i++) {
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children[i] = Vnode.normalize(input[i])
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}
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}
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return children
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}
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module.exports = Vnode
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