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perf: precompute isEssence for RegExp of content-type-parser method compareRegExpContentType #4481

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merged 1 commit into from Dec 24, 2022
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perf: precompute isEssence for RegExp of content-type-parser method compareRegExpContentType #4481

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3 changes: 2 additions & 1 deletion lib/contentTypeParser.js
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Expand Up @@ -70,6 +70,7 @@ ContentTypeParser.prototype.add = function (contentType, opts, parserFn) {
if (contentTypeIsString) {
this.parserList.unshift(new ParserListItem(contentType))
} else {
contentType.isEssence = contentType.source.indexOf(';') === -1
this.parserRegExpList.unshift(contentType)
}
this.customParsers.set(contentType.toString(), parser)
Expand Down Expand Up @@ -389,7 +390,7 @@ function compareContentType (contentType, parserListItem) {
}

function compareRegExpContentType (contentType, essenceMIMEType, regexp) {
if (regexp.source.indexOf(';') === -1) {
if (regexp.isEssence) {
// we do essence check
return regexp.test(essenceMIMEType)
} else {
Expand Down