Fix false positives for part pseudo-element in selector-pseudo-elemen…

…t-no-unknown (#4604) Fixes #4589
stylelint · Feb 16, 2020 · 4e1042b · 4e1042b
1 parent d5a9ccf
commit 4e1042b
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diff --git a/lib/reference/keywordSets.js b/lib/reference/keywordSets.js
@@ -173,6 +173,8 @@ keywordSets.levelThreePseudoElements = new Set([
 	'content',
 ]);
 
+keywordSets.shadowTreePseudoElements = new Set(['part']);
+
 keywordSets.vendorSpecificPseudoElements = new Set([
 	'-moz-progress-bar',
 	'-moz-range-progress',
@@ -202,6 +204,7 @@ keywordSets.pseudoElements = uniteSets(
 	keywordSets.levelOneAndTwoPseudoElements,
 	keywordSets.levelThreePseudoElements,
 	keywordSets.vendorSpecificPseudoElements,
+	keywordSets.shadowTreePseudoElements,
 );
 
 keywordSets.aNPlusBNotationPseudoClasses = new Set([

diff --git a/lib/rules/selector-pseudo-element-no-unknown/__tests__/index.js b/lib/rules/selector-pseudo-element-no-unknown/__tests__/index.js
@@ -105,6 +105,9 @@ testRule(rule, {
 			code: 'html { --custom-property-set: {} }',
 			description: 'custom property set in selector',
 		},
+		{
+			code: 'a::part(shadow-part) { }',
+		},
 	],
 
 	reject: [