From d881c9df941d22a8cdc52bbd13e1b1900b0f95f8 Mon Sep 17 00:00:00 2001
From: Fedya Petrakov <jakephin2015@gmail.com>
Date: Mon, 15 Jan 2024 11:58:08 +0300
Subject: [PATCH] Fix `declaration-property-value-no-unknown` false negatives
 for `@starting-style` (#7461)

Co-authored-by: Masafumi Koba <473530+ybiquitous@users.noreply.github.com>
---
 .changeset/cyan-mice-enjoy.md                         |  5 +++++
 lib/reference/atKeywords.cjs                          |  9 ++-------
 lib/reference/atKeywords.mjs                          |  9 ++-------
 .../__tests__/index.mjs                               | 11 +++++++++++
 4 files changed, 20 insertions(+), 14 deletions(-)
 create mode 100644 .changeset/cyan-mice-enjoy.md

diff --git a/.changeset/cyan-mice-enjoy.md b/.changeset/cyan-mice-enjoy.md
new file mode 100644
index 0000000000..3559e81067
--- /dev/null
+++ b/.changeset/cyan-mice-enjoy.md
@@ -0,0 +1,5 @@
+---
+"stylelint": minor
+---
+
+Fixed: `declaration-property-value-no-unknown` false negatives for `@starting-style`
diff --git a/lib/reference/atKeywords.cjs b/lib/reference/atKeywords.cjs
index ebad8fe164..394b981d7b 100644
--- a/lib/reference/atKeywords.cjs
+++ b/lib/reference/atKeywords.cjs
@@ -10,6 +10,7 @@ const nestingSupportedAtKeywords = new Set([
 	'layer',
 	'media',
 	'scope',
+	'starting-style',
 	'supports',
 ]);
 
@@ -34,12 +35,11 @@ const pageMarginAtKeywords = new Set([
 ]);
 
 // https://developer.mozilla.org/en/docs/Web/CSS/At-rule
-const atKeywords = uniteSets(pageMarginAtKeywords, [
+const atKeywords = uniteSets(nestingSupportedAtKeywords, pageMarginAtKeywords, [
 	'annotation',
 	'apply',
 	'character-variant',
 	'charset',
-	'container',
 	'counter-style',
 	'custom-media',
 	'custom-selector',
@@ -48,19 +48,14 @@ const atKeywords = uniteSets(pageMarginAtKeywords, [
 	'font-feature-values',
 	'import',
 	'keyframes',
-	'layer',
-	'media',
 	'namespace',
 	'nest',
 	'ornaments',
 	'page',
 	'property',
 	'scroll-timeline',
-	'scope',
-	'starting-style',
 	'styleset',
 	'stylistic',
-	'supports',
 	'swash',
 	'viewport',
 ]);
diff --git a/lib/reference/atKeywords.mjs b/lib/reference/atKeywords.mjs
index b64b82277f..bec1ce256c 100644
--- a/lib/reference/atKeywords.mjs
+++ b/lib/reference/atKeywords.mjs
@@ -6,6 +6,7 @@ export const nestingSupportedAtKeywords = new Set([
 	'layer',
 	'media',
 	'scope',
+	'starting-style',
 	'supports',
 ]);
 
@@ -30,12 +31,11 @@ const pageMarginAtKeywords = new Set([
 ]);
 
 // https://developer.mozilla.org/en/docs/Web/CSS/At-rule
-export const atKeywords = uniteSets(pageMarginAtKeywords, [
+export const atKeywords = uniteSets(nestingSupportedAtKeywords, pageMarginAtKeywords, [
 	'annotation',
 	'apply',
 	'character-variant',
 	'charset',
-	'container',
 	'counter-style',
 	'custom-media',
 	'custom-selector',
@@ -44,19 +44,14 @@ export const atKeywords = uniteSets(pageMarginAtKeywords, [
 	'font-feature-values',
 	'import',
 	'keyframes',
-	'layer',
-	'media',
 	'namespace',
 	'nest',
 	'ornaments',
 	'page',
 	'property',
 	'scroll-timeline',
-	'scope',
-	'starting-style',
 	'styleset',
 	'stylistic',
-	'supports',
 	'swash',
 	'viewport',
 ]);
diff --git a/lib/rules/declaration-property-value-no-unknown/__tests__/index.mjs b/lib/rules/declaration-property-value-no-unknown/__tests__/index.mjs
index faac2462f3..10d14fbd73 100644
--- a/lib/rules/declaration-property-value-no-unknown/__tests__/index.mjs
+++ b/lib/rules/declaration-property-value-no-unknown/__tests__/index.mjs
@@ -11,6 +11,9 @@ testRule({
 		{
 			code: 'a { top: 0; }',
 		},
+		{
+			code: 'a { @starting-style { opacity: 0; } }',
+		},
 		{
 			code: 'a { @media screen { top: 0; } }',
 		},
@@ -148,6 +151,14 @@ testRule({
 			endLine: 1,
 			endColumn: 33,
 		},
+		{
+			code: 'a { @starting-style { padding: auto; } }',
+			message: messages.rejected('padding', 'auto'),
+			line: 1,
+			column: 32,
+			endLine: 1,
+			endColumn: 36,
+		},
 		{
 			code: 'a { top: red; }',
 			message: messages.rejected('top', 'red'),