removed caches

lib/single-file/css-rules-matcher.js

@@ -30,16 +30,14 @@ this.RulesMatcher = this.RulesMatcher || (() => {
 		constructor(doc) {
 			this.doc = doc;
 			this.mediaAllInfo = createMediaInfo(MEDIA_ALL);
-			const matchedElementsCache = {};
-			const unmatchedSelectorsCache = [];
 			doc.querySelectorAll("style").forEach((styleElement, styleIndex) => {
 				if (styleElement.sheet) {
 					if (styleElement.media && styleElement.media != MEDIA_ALL) {
 						const mediaInfo = createMediaInfo(styleElement.media);
 						this.mediaAllInfo.medias.set(styleIndex + "-" + styleElement.media, mediaInfo);
-						getMatchedElementsRules(doc, styleElement.sheet.cssRules, mediaInfo, styleIndex, matchedElementsCache, unmatchedSelectorsCache);
+						getMatchedElementsRules(doc, styleElement.sheet.cssRules, mediaInfo, styleIndex);
 					} else {
-						getMatchedElementsRules(doc, styleElement.sheet.cssRules, this.mediaAllInfo, styleIndex, matchedElementsCache, unmatchedSelectorsCache);
+						getMatchedElementsRules(doc, styleElement.sheet.cssRules, this.mediaAllInfo, styleIndex);
 					}
 				}
 			});
@@ -62,12 +60,12 @@ this.RulesMatcher = this.RulesMatcher || (() => {
 		}
 	};
 
-	function getMatchedElementsRules(doc, cssRules, mediaInfo, sheetIndex, matchedElementsCache, unmatchedSelectorsCache) {
+	function getMatchedElementsRules(doc, cssRules, mediaInfo, sheetIndex) {
 		Array.from(cssRules).forEach((cssRule, ruleIndex) => {
 			if (cssRule.type == CSSRule.MEDIA_RULE) {
 				const ruleMediaInfo = createMediaInfo(cssRule.media);
 				mediaInfo.medias.set(cssRule.media, ruleMediaInfo);
-				getMatchedElementsRules(doc, cssRule.cssRules, ruleMediaInfo, sheetIndex, matchedElementsCache, unmatchedSelectorsCache);
+				getMatchedElementsRules(doc, cssRule.cssRules, ruleMediaInfo, sheetIndex);
 			} else if (cssRule.type == CSSRule.STYLE_RULE) {
 				if (cssRule.selectorText) {
 					let selectors;
@@ -78,30 +76,15 @@ this.RulesMatcher = this.RulesMatcher || (() => {
 					}
 					if (selectors) {
 						const selectorsText = selectors.map(selector => cssWhat.stringify([selector]));
-						selectors.forEach((selector, selectorIndex) => getMatchedElementsSelector(doc, cssRule, selector, selectorsText[selectorIndex], selectorsText, mediaInfo, ruleIndex, sheetIndex, matchedElementsCache, unmatchedSelectorsCache));
+						selectors.forEach((selector, selectorIndex) => getMatchedElementsSelector(doc, cssRule, selector, selectorsText[selectorIndex], selectorsText, mediaInfo, ruleIndex, sheetIndex));
 					}
 				}
 			}
 		});
 	}
 
-	function getMatchedElementsSelector(doc, cssRule, selector, selectorText, selectorsText, mediaInfo, ruleIndex, sheetIndex, matchedElementsCache, unmatchedSelectorsCache) {
-		let matchedElements = matchedElementsCache[selectorText];
-		if (!matchedElements) {
-			let selectorIndex = 0, selectorsLength = unmatchedSelectorsCache.length, unmatchedSelector;
-			while (selectorIndex < selectorsLength && !(unmatchedSelector = selectorText.startsWith(unmatchedSelectorsCache[selectorIndex]))) {
-				selectorIndex++;
-			}
-			if (selectorIndex < selectorsLength && unmatchedSelector) {
-				matchedElements = [];
-			} else {
-				matchedElements = doc.querySelectorAll(selectorText);
-				if (!matchedElements.length) {
-					unmatchedSelectorsCache.push(selectorText + " ");
-				}
-			}
-			matchedElementsCache[selectorText] = matchedElements;
-		}
+	function getMatchedElementsSelector(doc, cssRule, selector, selectorText, selectorsText, mediaInfo, ruleIndex, sheetIndex) {
+		const matchedElements = doc.querySelectorAll(selectorText);
 		if (matchedElements.length) {
 			matchedElements.forEach(element => addRule(element, cssRule, selector, selectorText, selectorsText, mediaInfo, ruleIndex, sheetIndex));
 		}