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perf(vue): refer native script source code to reduce number of loops

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* perf(vue,vue-next): refer native script to reduce number of loops

* Revert "perf(vue,vue-next): refer native script to reduce number of loops"

This reverts commit 7add201a32.

* perf(vue,vue-next): refer native script to reduce number of loops

Co-authored-by: Zoom Chan <zoom_chan@163.com>
This commit is contained in:
birdguo
2022-10-26 14:28:38 +08:00
committed by Zoom Chan
co-authored by Zoom Chan
parent ed86866cf6
commit c09818baef
1 changed files with 20 additions and 8 deletions
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driver/js/packages/hippy-vue/src/renderer/native/style/css-selectors.js
+20 -8
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@@ -462,24 +462,36 @@ class Selector extends SelectorCore {
let siblingGroup = [];
let lastGroup = [];
const groups = [];
const reverseSelectors = [...selectors].reverse();
reverseSelectors.forEach((sel) => {
const selectorList = [...selectors];
const length = selectorList.length - 1;
this.specificity = 0;
this.dynamic = false;
for (let i = length; i >= 0; i--) {
const sel = selectorList[i];
if (supportedCombinator.indexOf(sel.combinator) === -1) {
console.error(`Unsupported combinator "${sel.combinator}".`);
throw new Error(`Unsupported combinator "${sel.combinator}".`);
}
if (sel.combinator === undefined || sel.combinator === ' ') {
groups.push(lastGroup = [(siblingGroup = [])]);
}
if (sel.combinator === '>') {
lastGroup.push(siblingGroup = []);
lastGroup.push((siblingGroup = []));
}
this.specificity += sel.specificity;
if (sel.dynamic) {
this.dynamic = true;
}
siblingGroup.push(sel);
});
this.groups = groups.map(g => new Selector.ChildGroup(g.map(sg => new Selector.SiblingGroup(sg))));
this.last = reverseSelectors[0];
this.specificity = reverseSelectors.reduce((sum, sel) => sel.specificity + sum, 0);
this.dynamic = reverseSelectors.some(sel => sel.dynamic);
}
this.groups = groups.map(g => new ChildGroup(g.map(sg => new SiblingGroup(sg))));
this.last = selectorList[length];
}
toString() {