b98ab29efd
Also, I normalized them to all be sentences for consistency, and I moved the reentrancy check from `m.mount` to `m.render` to be a little more helpful. The router change during mounting is inconsequential and only to avoid the new modified error, and the change to the update loop is to send the original error if an error occurred while initializing the default route. (This is all around more useful anyways.) And while I was at it, I fixed an obscure bug with sync redraws.
35 lines
1.4 KiB
JavaScript
35 lines
1.4 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(
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isKeyed && (input[i] != null || typeof input[i] === "boolean")
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? "In fragments, vnodes must either all have keys or none have keys. You may wish to consider using an explicit keyed empty fragment, m.fragment({key: ...}), instead of a hole."
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: "In fragments, vnodes must either all have keys or none have keys."
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)
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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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