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Switch to recursive getElementsByTagName implementation.

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Jason Miller
2018-04-03 17:00:26 -04:00
parent 023367ec60
commit 3f55698439
1 changed files with 8 additions and 16 deletions
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24
config/critters-webpack-plugin.js
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@@ -212,22 +212,14 @@ function defineProperties(obj, properties) {
/** {document,Element}.getElementsByTagName() is the only traversal method required by nwmatcher. */
function getElementsByTagName(tagName) {
const stack = [this];
const matches = [];
const isWildCard = tagName === '*';
const tagNameUpper = tagName.toUpperCase();
while (stack.length !== 0) {
const el = stack.pop();
let child = el.lastChild;
while (child) {
if (child.nodeType === 1) stack.push(child);
child = child.previousSibling;
}
if (isWildCard || (el.tagName != null && (el.tagName === tagNameUpper || el.tagName.toUpperCase() === tagNameUpper))) {
matches.push(el);
}
}
return matches;
// Only return Element/Document nodes
if (this.nodeType!==1 && this.nodeType!==9 || this.type==='directive') return [];
return Array.prototype.concat.apply(
// Add current element if it matches tag
(tagName === '*' || (this.tagName && (this.tagName == tagName || this.nodeName === tagName.toUpperCase()))) ? [this] : [],
// Check children recursively
this.children.map(child => getElementsByTagName.call(child, tagName))
);
}