Fix at-rule-no-unknown false positives for @function (#8851)

jeddy3 · web-flow · commit 431cb53c0a18 · 2025-11-27T17:45:41.000Z
diff --git a/.changeset/serious-seals-rule.md b/.changeset/serious-seals-rule.md
@@ -0,0 +1,5 @@
+---
+"stylelint": patch
+---
+
+Fixed: `at-rule-no-unknown` false positives for `@function`
diff --git a/lib/reference/atKeywords.cjs b/lib/reference/atKeywords.cjs
diff --git a/lib/reference/atKeywords.mjs b/lib/reference/atKeywords.mjs
@@ -70,6 +70,7 @@ export const atKeywords = uniteSets(
 		'font-face',
 		'font-feature-values',
 		'font-palette-values',
+		'function',
 		'import',
 		'keyframes',
 		'namespace',
diff --git a/lib/rules/at-rule-no-unknown/__tests__/index.mjs b/lib/rules/at-rule-no-unknown/__tests__/index.mjs
@@ -98,6 +98,9 @@ testRule({
 		{
 			code: '@scroll-timeline foo {}',
 		},
+		{
+			code: '@function --foo {}',
+		},
 	],
 
 	reject: [

-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +---
 +"stylelint": patch
 +---
++
 +Fixed: `at-rule-no-unknown` false positives for `@function`