From 937acbca0b13cd4fcfc049e66513fcede22e39b4 Mon Sep 17 00:00:00 2001
From: Edward <11798919+Winter@users.noreply.github.com>
Date: Mon, 26 Aug 2024 20:14:37 +1000
Subject: [PATCH 01/14] feat: Add fixes for block-lang rule

---
 .../src/rules/block-lang.ts                   | 66 +++++++++++++++++--
 1 file changed, 61 insertions(+), 5 deletions(-)

diff --git a/packages/eslint-plugin-svelte/src/rules/block-lang.ts b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
index 1beb94e80..5f5c4f1b7 100644
--- a/packages/eslint-plugin-svelte/src/rules/block-lang.ts
+++ b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
@@ -1,5 +1,5 @@
 import { createRule } from '../utils';
-import { getLangValue } from '../utils/ast-utils';
+import { findAttribute, getLangValue } from '../utils/ast-utils';
 import type { SvelteScriptElement, SvelteStyleElement } from 'svelte-eslint-parser/lib/ast';
 import { getSourceCode } from '../utils/compat';
 
@@ -11,6 +11,7 @@ export default createRule('block-lang', {
 			category: 'Best Practices',
 			recommended: false
 		},
+		fixable: 'code',
 		schema: [
 			{
 				type: 'object',
@@ -88,7 +89,15 @@ export default createRule('block-lang', {
 						loc: { line: 1, column: 1 },
 						message: `The <script> block should be present and its lang attribute should be ${prettyPrintLangs(
 							allowedScriptLangs
-						)}.`
+						)}.`,
+						*fix(fixer) {
+							const langAttributeText = getLangAttributeText(allowedScriptLangs, true);
+
+							yield fixer.insertTextAfterRange(
+								[0, 0],
+								`<script${langAttributeText}>\n</script>\n\n`
+							);
+						}
 					});
 				}
 				for (const scriptNode of scriptNodes) {
@@ -97,7 +106,20 @@ export default createRule('block-lang', {
 							node: scriptNode,
 							message: `The lang attribute of the <script> block should be ${prettyPrintLangs(
 								allowedScriptLangs
-							)}.`
+							)}.`,
+							*fix(fixer) {
+								const langAttribute = findAttribute(scriptNode, 'lang');
+								const langAttributeText = getLangAttributeText(allowedScriptLangs, true);
+
+								if (langAttribute) {
+									yield fixer.replaceText(langAttribute, langAttributeText.trim());
+								} else {
+									yield fixer.insertTextBeforeRange(
+										[scriptNode.startTag.range[0] + 7, 0],
+										langAttributeText
+									);
+								}
+							}
 						});
 					}
 				}
@@ -106,7 +128,16 @@ export default createRule('block-lang', {
 						loc: { line: 1, column: 1 },
 						message: `The <style> block should be present and its lang attribute should be ${prettyPrintLangs(
 							allowedStyleLangs
-						)}.`
+						)}.`,
+						*fix(fixer) {
+							const sourceCode = getSourceCode(context);
+							const langAttributeText = getLangAttributeText(allowedScriptLangs, true);
+
+							yield fixer.insertTextAfterRange(
+								[sourceCode.text.length, sourceCode.text.length],
+								`\n\n<style${langAttributeText}>\n</style>`
+							);
+						}
 					});
 				}
 				for (const styleNode of styleNodes) {
@@ -115,7 +146,20 @@ export default createRule('block-lang', {
 							node: styleNode,
 							message: `The lang attribute of the <style> block should be ${prettyPrintLangs(
 								allowedStyleLangs
-							)}.`
+							)}.`,
+							*fix(fixer) {
+								const langAttribute = findAttribute(styleNode, 'lang');
+								const langAttributeText = getLangAttributeText(allowedStyleLangs, true);
+
+								if (langAttribute) {
+									yield fixer.replaceText(langAttribute, langAttributeText.trim());
+								} else {
+									yield fixer.insertTextBeforeRange(
+										[styleNode.startTag.range[0] + 6, 0],
+										langAttributeText
+									);
+								}
+							}
 						});
 					}
 				}
@@ -139,3 +183,15 @@ function prettyPrintLangs(langs: (string | null)[]): string {
 		nonNullLangs.length === 1 ? nonNullLangs[0] : `one of ${nonNullLangs.join(', ')}`;
 	return hasNullText + nonNullText;
 }
+
+/**
+ * Returns the lang attribute text, with special handling of the `null` lang option with respect to the `prependWhitespace` argument.
+ */
+function getLangAttributeText(langs: (string | null)[], prependWhitespace: boolean): string {
+	if (!langs.length || langs.includes(null)) return '';
+	const [firstLang] = langs;
+	if (langs.length === 1 && firstLang) {
+		return `${prependWhitespace ? ' ' : ''}lang="${firstLang}"`;
+	}
+	return '';
+}

From 22e440dd6ab76e1c20510aa041ba22a1e2827283 Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 14:47:57 +0900
Subject: [PATCH 02/14] suggestion

---
 .../src/rules/block-lang.ts                   | 131 +++++++++++-------
 1 file changed, 79 insertions(+), 52 deletions(-)

diff --git a/packages/eslint-plugin-svelte/src/rules/block-lang.ts b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
index 85ca506de..499aa01c3 100644
--- a/packages/eslint-plugin-svelte/src/rules/block-lang.ts
+++ b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
@@ -66,7 +66,7 @@ export default createRule('block-lang', {
 
 		const scriptOption: string | null | (string | null)[] = context.options[0]?.script ?? null;
 		const allowedScriptLangs: (string | null)[] = Array.isArray(scriptOption)
-			? scriptOption
+			? scriptOption.filter((lang) => lang != null && lang !== '')
 			: [scriptOption];
 		const scriptNodes: SvelteScriptElement[] = [];
 
@@ -90,76 +90,108 @@ export default createRule('block-lang', {
 						message: `The <script> block should be present and its lang attribute should be ${prettyPrintLangs(
 							allowedScriptLangs
 						)}.`,
-						*fix(fixer) {
-							const langAttributeText = getLangAttributeText(allowedScriptLangs, true);
-
-							yield fixer.insertTextAfterRange(
-								[0, 0],
-								`<script${langAttributeText}>\n</script>\n\n`
-							);
-						}
+						suggest: allowedScriptLangs
+							.filter((lang) => lang != null && lang !== '')
+							.map((lang) => {
+								return {
+									desc: `Add a <script> block with the lang attribute set to "${lang}".`,
+									fix: (fixer) => {
+										const langAttributeText = getLangAttributeText(lang ?? '', true);
+										return fixer.insertTextAfterRange(
+											[0, 0],
+											`<script${langAttributeText}>\n</script>\n\n`
+										);
+									}
+								};
+							})
 					});
 				}
 				for (const scriptNode of scriptNodes) {
 					if (!allowedScriptLangs.includes(getLangValue(scriptNode)?.toLowerCase() ?? null)) {
+						const langAttribute = findAttribute(scriptNode, 'lang');
 						context.report({
 							node: scriptNode,
 							message: `The lang attribute of the <script> block should be ${prettyPrintLangs(
 								allowedScriptLangs
 							)}.`,
-							*fix(fixer) {
-								const langAttribute = findAttribute(scriptNode, 'lang');
-								const langAttributeText = getLangAttributeText(allowedScriptLangs, true);
-
-								if (langAttribute) {
-									yield fixer.replaceText(langAttribute, langAttributeText.trim());
-								} else {
-									yield fixer.insertTextBeforeRange(
-										[scriptNode.startTag.range[0] + 7, 0],
-										langAttributeText
-									);
-								}
-							}
+							suggest: allowedScriptLangs
+								.filter((lang) => lang != null && lang !== '')
+								.map((lang) => {
+									const langAttributeText = getLangAttributeText(lang ?? '', true);
+									if (langAttribute) {
+										return {
+											desc: `Add a <script> block with the lang attribute set to "${lang}".`,
+											fix: (fixer) => {
+												return fixer.replaceText(langAttribute, langAttributeText.trim());
+											}
+										};
+									}
+									return {
+										desc: `Add a <script> block with the lang attribute set to "${lang}".`,
+										fix: (fixer) => {
+											return fixer.insertTextBeforeRange(
+												[scriptNode.startTag.range[0] + 7, 0],
+												langAttributeText
+											);
+										}
+									};
+								})
 						});
 					}
 				}
 				if (styleNodes.length === 0 && enforceStylePresent) {
+					const sourceCode = getSourceCode(context);
 					context.report({
 						loc: { line: 1, column: 1 },
 						message: `The <style> block should be present and its lang attribute should be ${prettyPrintLangs(
 							allowedStyleLangs
 						)}.`,
-						*fix(fixer) {
-							const sourceCode = getSourceCode(context);
-							const langAttributeText = getLangAttributeText(allowedScriptLangs, true);
-
-							yield fixer.insertTextAfterRange(
-								[sourceCode.text.length, sourceCode.text.length],
-								`\n\n<style${langAttributeText}>\n</style>`
-							);
-						}
+						suggest: allowedStyleLangs
+							.filter((lang) => lang != null && lang !== '')
+							.map((lang) => {
+								return {
+									desc: `Add a <style> block with the lang attribute set to "${lang}".`,
+									fix: (fixer) => {
+										const langAttributeText = getLangAttributeText(lang ?? '', true);
+										return fixer.insertTextAfterRange(
+											[sourceCode.text.length, sourceCode.text.length],
+											`<style${langAttributeText}>\n</style>\n\n`
+										);
+									}
+								};
+							})
 					});
 				}
 				for (const styleNode of styleNodes) {
 					if (!allowedStyleLangs.includes(getLangValue(styleNode)?.toLowerCase() ?? null)) {
+						const langAttribute = findAttribute(styleNode, 'lang');
 						context.report({
 							node: styleNode,
 							message: `The lang attribute of the <style> block should be ${prettyPrintLangs(
 								allowedStyleLangs
 							)}.`,
-							*fix(fixer) {
-								const langAttribute = findAttribute(styleNode, 'lang');
-								const langAttributeText = getLangAttributeText(allowedStyleLangs, true);
-
-								if (langAttribute) {
-									yield fixer.replaceText(langAttribute, langAttributeText.trim());
-								} else {
-									yield fixer.insertTextBeforeRange(
-										[styleNode.startTag.range[0] + 6, 0],
-										langAttributeText
-									);
-								}
-							}
+							suggest: allowedStyleLangs
+								.filter((lang) => lang != null && lang !== '')
+								.map((lang) => {
+									const langAttributeText = getLangAttributeText(lang ?? '', true);
+									if (langAttribute) {
+										return {
+											desc: `Add a <style> block with the lang attribute set to "${lang}".`,
+											fix: (fixer) => {
+												return fixer.replaceText(langAttribute, langAttributeText.trim());
+											}
+										};
+									}
+									return {
+										desc: `Add a <style> block with the lang attribute set to "${lang}".`,
+										fix: (fixer) => {
+											return fixer.insertTextBeforeRange(
+												[styleNode.startTag.range[0] + 6, 0],
+												langAttributeText
+											);
+										}
+									};
+								})
 						});
 					}
 				}
@@ -175,7 +207,7 @@ function prettyPrintLangs(langs: (string | null)[]): string {
 	const hasNull = langs.includes(null);
 	const nonNullLangs = langs.filter((lang) => lang !== null).map((lang) => `"${lang}"`);
 	if (nonNullLangs.length === 0) {
-		// No special behaviour for `hasNull`, because that can never happen.
+		// No special behavior for `hasNull`, because that can never happen.
 		return 'omitted';
 	}
 	const hasNullText = hasNull ? 'either omitted or ' : '';
@@ -187,11 +219,6 @@ function prettyPrintLangs(langs: (string | null)[]): string {
 /**
  * Returns the lang attribute text, with special handling of the `null` lang option with respect to the `prependWhitespace` argument.
  */
-function getLangAttributeText(langs: (string | null)[], prependWhitespace: boolean): string {
-	if (!langs.length || langs.includes(null)) return '';
-	const [firstLang] = langs;
-	if (langs.length === 1 && firstLang) {
-		return `${prependWhitespace ? ' ' : ''}lang="${firstLang}"`;
-	}
-	return '';
+function getLangAttributeText(lang: string, prependWhitespace: boolean): string {
+	return `${prependWhitespace ? ' ' : ''}lang="${lang}"`;
 }

From 8d30e32cb273cc5624a22584e6da8d9e23e5e921 Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 14:50:58 +0900
Subject: [PATCH 03/14] update

---
 packages/eslint-plugin-svelte/src/rules/block-lang.ts | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/packages/eslint-plugin-svelte/src/rules/block-lang.ts b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
index 499aa01c3..6d2c4b377 100644
--- a/packages/eslint-plugin-svelte/src/rules/block-lang.ts
+++ b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
@@ -11,7 +11,6 @@ export default createRule('block-lang', {
 			category: 'Best Practices',
 			recommended: false
 		},
-		fixable: 'code',
 		schema: [
 			{
 				type: 'object',
@@ -55,7 +54,7 @@ export default createRule('block-lang', {
 			}
 		],
 		messages: {},
-		type: 'suggestion'
+		hasSuggestions: true
 	},
 	create(context) {
 		if (!getSourceCode(context).parserServices.isSvelte) {

From 988fe74ed7f96ee20fc579ea940fbddb88f78a31 Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 14:51:53 +0900
Subject: [PATCH 04/14] fix

---
 packages/eslint-plugin-svelte/src/rules/block-lang.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/eslint-plugin-svelte/src/rules/block-lang.ts b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
index 6d2c4b377..57971d959 100644
--- a/packages/eslint-plugin-svelte/src/rules/block-lang.ts
+++ b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
@@ -54,6 +54,7 @@ export default createRule('block-lang', {
 			}
 		],
 		messages: {},
+		type: 'suggestion',
 		hasSuggestions: true
 	},
 	create(context) {

From aab069b44a5e91a7f303de8ef95843240d28d784 Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 14:52:37 +0900
Subject: [PATCH 05/14] revert

---
 packages/eslint-plugin-svelte/src/rules/block-lang.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/eslint-plugin-svelte/src/rules/block-lang.ts b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
index 57971d959..00befaf95 100644
--- a/packages/eslint-plugin-svelte/src/rules/block-lang.ts
+++ b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
@@ -66,7 +66,7 @@ export default createRule('block-lang', {
 
 		const scriptOption: string | null | (string | null)[] = context.options[0]?.script ?? null;
 		const allowedScriptLangs: (string | null)[] = Array.isArray(scriptOption)
-			? scriptOption.filter((lang) => lang != null && lang !== '')
+			? scriptOption
 			: [scriptOption];
 		const scriptNodes: SvelteScriptElement[] = [];
 

From 8ad1bf09491de7cae06cf034a77a2e4ee0993427 Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 14:57:45 +0900
Subject: [PATCH 06/14] update fixture

---
 .../javascript-as-style-lang01-errors.yaml           |  7 ++++++-
 .../invalid/script/javascript/js01-errors.yaml       |  5 ++++-
 .../invalid/script/javascript/null01-errors.yaml     |  5 ++++-
 .../invalid/script/javascript/ts01-errors.yaml       |  5 ++++-
 .../script/javascript/typescript01-errors.yaml       |  5 ++++-
 .../invalid/script/js/javascript01-errors.yaml       |  5 ++++-
 .../invalid/script/js/js-as-style-lang01-errors.yaml |  7 ++++++-
 .../block-lang/invalid/script/js/null01-errors.yaml  |  5 ++++-
 .../block-lang/invalid/script/js/ts01-errors.yaml    |  5 ++++-
 .../invalid/script/js/typescript01-errors.yaml       |  5 ++++-
 .../script/module-context/javascript01-errors.yaml   |  7 ++++++-
 .../invalid/script/module-context/js01-errors.yaml   |  7 ++++++-
 .../invalid/script/module-context/null01-errors.yaml |  7 ++++++-
 .../module-context/ts-as-style-lang01-errors.yaml    |  9 ++++++++-
 .../script/module-context/typescript01-errors.yaml   |  7 ++++++-
 .../invalid/script/multiple/javascript01-errors.yaml |  8 +++++++-
 .../invalid/script/multiple/js01-errors.yaml         |  8 +++++++-
 .../script/multiple/null-as-style-lang01-errors.yaml | 12 +++++++++++-
 .../script/multiple/ts-as-style-lang01-errors.yaml   | 12 +++++++++++-
 .../multiple/typescript-as-style-lang01-errors.yaml  | 12 +++++++++++-
 .../script/shorthand/javascript01-errors.yaml        |  5 ++++-
 .../invalid/script/shorthand/js01-errors.yaml        |  5 ++++-
 .../invalid/script/shorthand/null01-errors.yaml      |  5 ++++-
 .../script/shorthand/ts-as-style-lang01-errors.yaml  |  7 ++++++-
 .../script/shorthand/typescript01-errors.yaml        |  5 ++++-
 .../invalid/script/ts/javascript01-errors.yaml       |  5 ++++-
 .../block-lang/invalid/script/ts/js01-errors.yaml    |  5 ++++-
 .../block-lang/invalid/script/ts/null01-errors.yaml  |  5 ++++-
 .../invalid/script/ts/ts-as-style-lang01-errors.yaml |  7 ++++++-
 .../invalid/script/ts/typescript01-errors.yaml       |  5 ++++-
 .../script/typescript/javascript01-errors.yaml       |  5 ++++-
 .../invalid/script/typescript/js01-errors.yaml       |  5 ++++-
 .../invalid/script/typescript/null01-errors.yaml     |  5 ++++-
 .../invalid/script/typescript/ts01-errors.yaml       |  5 ++++-
 .../typescript-as-style-lang01-errors.yaml           |  7 ++++++-
 .../block-lang/invalid/style/sass/null01-errors.yaml |  5 ++++-
 .../style/sass/sass-as-script-lang01-errors.yaml     |  9 ++++++++-
 .../block-lang/invalid/style/sass/scss01-errors.yaml |  5 ++++-
 .../block-lang/invalid/style/scss/null01-errors.yaml |  5 ++++-
 .../block-lang/invalid/style/scss/sass01-errors.yaml |  7 ++++++-
 .../style/scss/scss-as-script-lang01-errors.yaml     |  7 ++++++-
 41 files changed, 221 insertions(+), 41 deletions(-)

diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
index f660dd594..4fe2e382c 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <script> block should be "javascript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "javascript".
+      output: |
+        <script lang="javascript"></script>
+
+        <style lang="javascript"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/js01-errors.yaml
index f660dd594..be37efdc2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/js01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "javascript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "javascript".
+      output: |
+        <script lang="javascript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/null01-errors.yaml
index f660dd594..be37efdc2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/null01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "javascript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "javascript".
+      output: |
+        <script lang="javascript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/ts01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/ts01-errors.yaml
index f660dd594..be37efdc2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/ts01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/ts01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "javascript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "javascript".
+      output: |
+        <script lang="javascript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/typescript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/typescript01-errors.yaml
index f660dd594..be37efdc2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/typescript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/typescript01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "javascript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "javascript".
+      output: |
+        <script lang="javascript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/javascript01-errors.yaml
index c49ef5c85..89f15181f 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/javascript01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "js".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "js".
+      output: |
+        <script lang="js"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/js-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/js-as-style-lang01-errors.yaml
index c49ef5c85..3832b6f5c 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/js-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/js-as-style-lang01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <script> block should be "js".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "js".
+      output: |
+        <script lang="js"></script>
+
+        <style lang="js"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/null01-errors.yaml
index c49ef5c85..89f15181f 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/null01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "js".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "js".
+      output: |
+        <script lang="js"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/ts01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/ts01-errors.yaml
index c49ef5c85..89f15181f 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/ts01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/ts01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "js".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "js".
+      output: |
+        <script lang="js"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/typescript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/typescript01-errors.yaml
index c49ef5c85..89f15181f 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/typescript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/typescript01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "js".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "js".
+      output: |
+        <script lang="js"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/javascript01-errors.yaml
index b42a142cf..bad06630c 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/javascript01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script context="module" lang="ts"></script>
+
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/js01-errors.yaml
index b42a142cf..bad06630c 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/js01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script context="module" lang="ts"></script>
+
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/null01-errors.yaml
index b42a142cf..e33140d6f 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/null01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts" context="module"></script>
+
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/ts-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/ts-as-style-lang01-errors.yaml
index b42a142cf..55a6c2475 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/ts-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/ts-as-style-lang01-errors.yaml
@@ -1,4 +1,11 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts" context="module"></script>
+
+        <script lang="ts"></script>
+
+        <style lang="ts"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/typescript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/typescript01-errors.yaml
index b42a142cf..bad06630c 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/typescript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/typescript01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script context="module" lang="ts"></script>
+
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/javascript01-errors.yaml
index 90ac8a74e..5ca79c3f8 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/javascript01-errors.yaml
@@ -2,4 +2,10 @@
     one of "ts", "typescript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
+    - desc: Add a <script> block with the lang attribute set to "typescript".
+      output: |
+        <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/js01-errors.yaml
index 90ac8a74e..5ca79c3f8 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/js01-errors.yaml
@@ -2,4 +2,10 @@
     one of "ts", "typescript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
+    - desc: Add a <script> block with the lang attribute set to "typescript".
+      output: |
+        <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/null-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/null-as-style-lang01-errors.yaml
index 90ac8a74e..aa86017f2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/null-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/null-as-style-lang01-errors.yaml
@@ -2,4 +2,14 @@
     one of "ts", "typescript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
+
+        <style></style>
+    - desc: Add a <script> block with the lang attribute set to "typescript".
+      output: |
+        <script lang="typescript"></script>
+
+        <style></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/ts-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/ts-as-style-lang01-errors.yaml
index 90ac8a74e..69682cf06 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/ts-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/ts-as-style-lang01-errors.yaml
@@ -2,4 +2,14 @@
     one of "ts", "typescript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
+
+        <style lang="ts"></style>
+    - desc: Add a <script> block with the lang attribute set to "typescript".
+      output: |
+        <script lang="typescript"></script>
+
+        <style lang="ts"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/typescript-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/typescript-as-style-lang01-errors.yaml
index 90ac8a74e..9462d9f90 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/typescript-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/typescript-as-style-lang01-errors.yaml
@@ -2,4 +2,14 @@
     one of "ts", "typescript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
+
+        <style lang="typescript"></style>
+    - desc: Add a <script> block with the lang attribute set to "typescript".
+      output: |
+        <script lang="typescript"></script>
+
+        <style lang="typescript"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/javascript01-errors.yaml
index b42a142cf..07ff7e701 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/javascript01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/js01-errors.yaml
index b42a142cf..07ff7e701 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/js01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/null01-errors.yaml
index b42a142cf..07ff7e701 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/null01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/ts-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/ts-as-style-lang01-errors.yaml
index b42a142cf..afc0714fe 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/ts-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/ts-as-style-lang01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
+
+        <style lang="ts"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/typescript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/typescript01-errors.yaml
index b42a142cf..07ff7e701 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/typescript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/typescript01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/javascript01-errors.yaml
index b42a142cf..07ff7e701 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/javascript01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/js01-errors.yaml
index b42a142cf..07ff7e701 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/js01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/null01-errors.yaml
index b42a142cf..07ff7e701 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/null01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/ts-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/ts-as-style-lang01-errors.yaml
index b42a142cf..afc0714fe 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/ts-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/ts-as-style-lang01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
+
+        <style lang="ts"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/typescript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/typescript01-errors.yaml
index b42a142cf..07ff7e701 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/typescript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/typescript01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "ts".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "ts".
+      output: |
+        <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/javascript01-errors.yaml
index a16e8f39a..fd6d9fa33 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/javascript01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "typescript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "typescript".
+      output: |
+        <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/js01-errors.yaml
index a16e8f39a..fd6d9fa33 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/js01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "typescript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "typescript".
+      output: |
+        <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/null01-errors.yaml
index a16e8f39a..fd6d9fa33 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/null01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "typescript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "typescript".
+      output: |
+        <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/ts01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/ts01-errors.yaml
index a16e8f39a..fd6d9fa33 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/ts01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/ts01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be "typescript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "typescript".
+      output: |
+        <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/typescript-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/typescript-as-style-lang01-errors.yaml
index a16e8f39a..4013f25ef 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/typescript-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/typescript-as-style-lang01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <script> block should be "typescript".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <script> block with the lang attribute set to "typescript".
+      output: |
+        <script lang="typescript"></script>
+
+        <style lang="typescript"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/null01-errors.yaml
index 9eec70357..c95226d44 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/null01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <style> block should be "sass".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <style> block with the lang attribute set to "sass".
+      output: |
+        <style lang="sass"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/sass-as-script-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/sass-as-script-lang01-errors.yaml
index 3cd86cbd2..90d406a34 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/sass-as-script-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/sass-as-script-lang01-errors.yaml
@@ -1,4 +1,11 @@
 - message: The lang attribute of the <style> block should be "sass".
   line: 5
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <style> block with the lang attribute set to "sass".
+      output: |
+        <script lang="sass">
+
+        </script>
+
+        <style lang="sass"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/scss01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/scss01-errors.yaml
index 9eec70357..c95226d44 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/scss01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/scss01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <style> block should be "sass".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <style> block with the lang attribute set to "sass".
+      output: |
+        <style lang="sass"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/null01-errors.yaml
index 7663cab19..57a6b031a 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/null01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <style> block should be "scss".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <style> block with the lang attribute set to "scss".
+      output: |
+        <style lang="scss"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/sass01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/sass01-errors.yaml
index 7663cab19..7255247c5 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/sass01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/sass01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <style> block should be "scss".
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <style> block with the lang attribute set to "scss".
+      output: |
+        <style lang="scss">
+
+        </style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/scss-as-script-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/scss-as-script-lang01-errors.yaml
index 748d36368..cfd3f7ec1 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/scss-as-script-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/scss-as-script-lang01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <style> block should be "scss".
   line: 3
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Add a <style> block with the lang attribute set to "scss".
+      output: |
+        <script lang="scss"></script>
+
+        <style lang="scss"></style>

From b4aa903950726fc6240714cb3b409cd7ac8c4894 Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 16:33:20 +0900
Subject: [PATCH 07/14] update fixture

---
 .../rules/block-lang/invalid/script/javascript/_config.json     | 2 +-
 .../script/javascript/javascript-as-style-lang01-errors.yaml    | 2 +-
 .../script/javascript/javascript-as-style-lang01-input.svelte   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/_config.json b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/_config.json
index 731bb19bc..04b8a8438 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/_config.json
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/_config.json
@@ -1,3 +1,3 @@
 {
-	"options": [{ "script": ["javascript"], "style": ["javascript", null] }]
+	"options": [{ "script": ["javascript"], "style": ["scss", null] }]
 }
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
index 4fe2e382c..3cdc635a2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
@@ -6,4 +6,4 @@
       output: |
         <script lang="javascript"></script>
 
-        <style lang="javascript"></style>
+        <style lang="scss"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-input.svelte b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-input.svelte
index 86a37bd26..9c1c647da 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-input.svelte
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-input.svelte
@@ -1,3 +1,3 @@
 <script></script>
 
-<style lang="javascript"></style>
+<style lang="scss"></style>

From 0199ecf1c9f368cab1c0b1768b31d00ac0cc355a Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 16:35:53 +0900
Subject: [PATCH 08/14] update fixture

---
 .../javascript/javascript-as-style-lang01-errors.yaml    | 9 +++++++++
 .../javascript/javascript-as-style-lang01-input.svelte   | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
index 3cdc635a2..1d4327363 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
@@ -6,4 +6,13 @@
       output: |
         <script lang="javascript"></script>
 
+        <style lang="javascript"></style>
+- message: The lang attribute of the <style> block should be either omitted or "scss".
+  line: 3
+  column: 1
+  suggestions:
+    - desc: Add a <style> block with the lang attribute set to "scss".
+      output: |
+        <script></script>
+
         <style lang="scss"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-input.svelte b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-input.svelte
index 9c1c647da..86a37bd26 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-input.svelte
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-input.svelte
@@ -1,3 +1,3 @@
 <script></script>
 
-<style lang="scss"></style>
+<style lang="javascript"></style>

From 2e96f177b50863d71a7924b5ccb35a0983552be9 Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 16:38:14 +0900
Subject: [PATCH 09/14] update fixture

---
 .../block-lang/invalid/script/javascript/_config.json    | 2 +-
 .../javascript/javascript-as-style-lang01-errors.yaml    | 9 ---------
 2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/_config.json b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/_config.json
index 04b8a8438..731bb19bc 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/_config.json
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/_config.json
@@ -1,3 +1,3 @@
 {
-	"options": [{ "script": ["javascript"], "style": ["scss", null] }]
+	"options": [{ "script": ["javascript"], "style": ["javascript", null] }]
 }
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
index 1d4327363..4fe2e382c 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
@@ -7,12 +7,3 @@
         <script lang="javascript"></script>
 
         <style lang="javascript"></style>
-- message: The lang attribute of the <style> block should be either omitted or "scss".
-  line: 3
-  column: 1
-  suggestions:
-    - desc: Add a <style> block with the lang attribute set to "scss".
-      output: |
-        <script></script>
-
-        <style lang="scss"></style>

From f67546e6fc034882d7294145ed2712ecef7fb88a Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 16:59:54 +0900
Subject: [PATCH 10/14] support null

---
 .../src/rules/block-lang.ts                   | 92 +++++++++----------
 .../script/javascript/js01-errors.yaml        |  2 +-
 .../script/javascript/ts01-errors.yaml        |  2 +-
 .../javascript/typescript01-errors.yaml       |  2 +-
 .../script/js/javascript01-errors.yaml        |  2 +-
 .../invalid/script/js/ts01-errors.yaml        |  2 +-
 .../script/js/typescript01-errors.yaml        |  2 +-
 .../module-context/javascript01-errors.yaml   |  2 +-
 .../script/module-context/js01-errors.yaml    |  2 +-
 .../module-context/typescript01-errors.yaml   |  2 +-
 .../script/multiple/javascript01-errors.yaml  |  4 +-
 .../invalid/script/multiple/js01-errors.yaml  |  4 +-
 .../multiple/null-as-style-lang01-errors.yaml |  4 +-
 .../multiple/ts-as-style-lang01-errors.yaml   |  4 +-
 .../typescript-as-style-lang01-errors.yaml    |  4 +-
 .../script/null/javascript01-errors.yaml      |  5 +-
 .../invalid/script/null/js01-errors.yaml      |  5 +-
 .../null/null-as-style-lang01-errors.yaml     |  7 +-
 .../invalid/script/null/ts01-errors.yaml      |  5 +-
 .../script/null/typescript01-errors.yaml      |  5 +-
 .../script/shorthand/javascript01-errors.yaml |  2 +-
 .../invalid/script/shorthand/js01-errors.yaml |  2 +-
 .../script/shorthand/typescript01-errors.yaml |  2 +-
 .../script/ts/javascript01-errors.yaml        |  2 +-
 .../invalid/script/ts/js01-errors.yaml        |  2 +-
 .../script/ts/typescript01-errors.yaml        |  2 +-
 .../typescript/javascript01-errors.yaml       |  2 +-
 .../script/typescript/js01-errors.yaml        |  2 +-
 .../script/typescript/ts01-errors.yaml        |  2 +-
 .../null/null-as-script-lang01-errors.yaml    |  7 +-
 .../invalid/style/null/sass01-errors.yaml     |  7 +-
 .../invalid/style/null/scss01-errors.yaml     |  5 +-
 .../invalid/style/sass/scss01-errors.yaml     |  2 +-
 .../invalid/style/scss/sass01-errors.yaml     |  2 +-
 34 files changed, 114 insertions(+), 84 deletions(-)

diff --git a/packages/eslint-plugin-svelte/src/rules/block-lang.ts b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
index 00befaf95..c18249966 100644
--- a/packages/eslint-plugin-svelte/src/rules/block-lang.ts
+++ b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
@@ -2,6 +2,7 @@ import { createRule } from '../utils/index.js';
 import { findAttribute, getLangValue } from '../utils/ast-utils.js';
 import type { SvelteScriptElement, SvelteStyleElement } from 'svelte-eslint-parser/lib/ast';
 import { getSourceCode } from '../utils/compat.js';
+import type { SuggestionReportDescriptor } from '../types.js';
 
 export default createRule('block-lang', {
 	meta: {
@@ -108,34 +109,12 @@ export default createRule('block-lang', {
 				}
 				for (const scriptNode of scriptNodes) {
 					if (!allowedScriptLangs.includes(getLangValue(scriptNode)?.toLowerCase() ?? null)) {
-						const langAttribute = findAttribute(scriptNode, 'lang');
 						context.report({
 							node: scriptNode,
 							message: `The lang attribute of the <script> block should be ${prettyPrintLangs(
 								allowedScriptLangs
 							)}.`,
-							suggest: allowedScriptLangs
-								.filter((lang) => lang != null && lang !== '')
-								.map((lang) => {
-									const langAttributeText = getLangAttributeText(lang ?? '', true);
-									if (langAttribute) {
-										return {
-											desc: `Add a <script> block with the lang attribute set to "${lang}".`,
-											fix: (fixer) => {
-												return fixer.replaceText(langAttribute, langAttributeText.trim());
-											}
-										};
-									}
-									return {
-										desc: `Add a <script> block with the lang attribute set to "${lang}".`,
-										fix: (fixer) => {
-											return fixer.insertTextBeforeRange(
-												[scriptNode.startTag.range[0] + 7, 0],
-												langAttributeText
-											);
-										}
-									};
-								})
+							suggest: buildSuggestions(allowedScriptLangs, scriptNode)
 						});
 					}
 				}
@@ -164,34 +143,12 @@ export default createRule('block-lang', {
 				}
 				for (const styleNode of styleNodes) {
 					if (!allowedStyleLangs.includes(getLangValue(styleNode)?.toLowerCase() ?? null)) {
-						const langAttribute = findAttribute(styleNode, 'lang');
 						context.report({
 							node: styleNode,
 							message: `The lang attribute of the <style> block should be ${prettyPrintLangs(
 								allowedStyleLangs
 							)}.`,
-							suggest: allowedStyleLangs
-								.filter((lang) => lang != null && lang !== '')
-								.map((lang) => {
-									const langAttributeText = getLangAttributeText(lang ?? '', true);
-									if (langAttribute) {
-										return {
-											desc: `Add a <style> block with the lang attribute set to "${lang}".`,
-											fix: (fixer) => {
-												return fixer.replaceText(langAttribute, langAttributeText.trim());
-											}
-										};
-									}
-									return {
-										desc: `Add a <style> block with the lang attribute set to "${lang}".`,
-										fix: (fixer) => {
-											return fixer.insertTextBeforeRange(
-												[styleNode.startTag.range[0] + 6, 0],
-												langAttributeText
-											);
-										}
-									};
-								})
+							suggest: buildSuggestions(allowedStyleLangs, styleNode)
 						});
 					}
 				}
@@ -200,6 +157,49 @@ export default createRule('block-lang', {
 	}
 });
 
+function buildSuggestions(
+	langs: (string | null)[],
+	node: SvelteScriptElement | SvelteStyleElement
+): SuggestionReportDescriptor[] {
+	const tagName = node.name.name;
+	const langAttribute = findAttribute(node, 'lang');
+	const filteredLangs = langs.filter((lang) => lang != null && lang !== '');
+
+	if (filteredLangs.length === 0 && langs.includes(null) && langAttribute !== null) {
+		return [
+			{
+				desc: `Replace a <${tagName}> block with the lang attribute omitted.`,
+				fix: (fixer) => {
+					return fixer.remove({
+						type: langAttribute.type,
+						range: [langAttribute.range[0] - 1, langAttribute.range[1]]
+					});
+				}
+			}
+		];
+	}
+	return filteredLangs.map((lang) => {
+		const langAttributeText = getLangAttributeText(lang ?? '', true);
+		if (langAttribute) {
+			return {
+				desc: `Replace a <${tagName}> block with the lang attribute set to "${lang}".`,
+				fix: (fixer) => {
+					return fixer.replaceText(langAttribute, langAttributeText.trim());
+				}
+			};
+		}
+		return {
+			desc: `Add a <${tagName}> block with the lang attribute set to "${lang}".`,
+			fix: (fixer) => {
+				return fixer.insertTextBeforeRange(
+					[node.startTag.range[0] + tagName.length + 1, 0],
+					langAttributeText
+				);
+			}
+		};
+	});
+}
+
 /**
  * Prints the list of allowed languages, with special handling of the `null` option.
  */
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/js01-errors.yaml
index be37efdc2..08f247bd2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/js01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "javascript".
+    - desc: Replace a <script> block with the lang attribute set to "javascript".
       output: |
         <script lang="javascript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/ts01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/ts01-errors.yaml
index be37efdc2..08f247bd2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/ts01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/ts01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "javascript".
+    - desc: Replace a <script> block with the lang attribute set to "javascript".
       output: |
         <script lang="javascript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/typescript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/typescript01-errors.yaml
index be37efdc2..08f247bd2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/typescript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/typescript01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "javascript".
+    - desc: Replace a <script> block with the lang attribute set to "javascript".
       output: |
         <script lang="javascript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/javascript01-errors.yaml
index 89f15181f..b7100ca03 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/javascript01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "js".
+    - desc: Replace a <script> block with the lang attribute set to "js".
       output: |
         <script lang="js"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/ts01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/ts01-errors.yaml
index 89f15181f..b7100ca03 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/ts01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/ts01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "js".
+    - desc: Replace a <script> block with the lang attribute set to "js".
       output: |
         <script lang="js"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/typescript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/typescript01-errors.yaml
index 89f15181f..b7100ca03 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/typescript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/typescript01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "js".
+    - desc: Replace a <script> block with the lang attribute set to "js".
       output: |
         <script lang="js"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/javascript01-errors.yaml
index bad06630c..e94782caf 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/javascript01-errors.yaml
@@ -2,7 +2,7 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script context="module" lang="ts"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/js01-errors.yaml
index bad06630c..e94782caf 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/js01-errors.yaml
@@ -2,7 +2,7 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script context="module" lang="ts"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/typescript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/typescript01-errors.yaml
index bad06630c..e94782caf 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/typescript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/typescript01-errors.yaml
@@ -2,7 +2,7 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script context="module" lang="ts"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/javascript01-errors.yaml
index 5ca79c3f8..3d6c977cd 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/javascript01-errors.yaml
@@ -3,9 +3,9 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script lang="ts"></script>
-    - desc: Add a <script> block with the lang attribute set to "typescript".
+    - desc: Replace a <script> block with the lang attribute set to "typescript".
       output: |
         <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/js01-errors.yaml
index 5ca79c3f8..3d6c977cd 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/js01-errors.yaml
@@ -3,9 +3,9 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script lang="ts"></script>
-    - desc: Add a <script> block with the lang attribute set to "typescript".
+    - desc: Replace a <script> block with the lang attribute set to "typescript".
       output: |
         <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/null-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/null-as-style-lang01-errors.yaml
index aa86017f2..b60330464 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/null-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/null-as-style-lang01-errors.yaml
@@ -3,12 +3,12 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script lang="ts"></script>
 
         <style></style>
-    - desc: Add a <script> block with the lang attribute set to "typescript".
+    - desc: Replace a <script> block with the lang attribute set to "typescript".
       output: |
         <script lang="typescript"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/ts-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/ts-as-style-lang01-errors.yaml
index 69682cf06..3d88a9dc2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/ts-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/ts-as-style-lang01-errors.yaml
@@ -3,12 +3,12 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script lang="ts"></script>
 
         <style lang="ts"></style>
-    - desc: Add a <script> block with the lang attribute set to "typescript".
+    - desc: Replace a <script> block with the lang attribute set to "typescript".
       output: |
         <script lang="typescript"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/typescript-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/typescript-as-style-lang01-errors.yaml
index 9462d9f90..c70d42840 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/typescript-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/multiple/typescript-as-style-lang01-errors.yaml
@@ -3,12 +3,12 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script lang="ts"></script>
 
         <style lang="typescript"></style>
-    - desc: Add a <script> block with the lang attribute set to "typescript".
+    - desc: Replace a <script> block with the lang attribute set to "typescript".
       output: |
         <script lang="typescript"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/javascript01-errors.yaml
index b2d700cdf..48a497641 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/javascript01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be omitted.
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Replace a <script> block with the lang attribute omitted.
+      output: |
+        <script></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/js01-errors.yaml
index b2d700cdf..48a497641 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/js01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be omitted.
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Replace a <script> block with the lang attribute omitted.
+      output: |
+        <script></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/null-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/null-as-style-lang01-errors.yaml
index b2d700cdf..a53325cf1 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/null-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/null-as-style-lang01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <script> block should be omitted.
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Replace a <script> block with the lang attribute omitted.
+      output: |
+        <script></script>
+
+        <style></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/ts01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/ts01-errors.yaml
index b2d700cdf..48a497641 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/ts01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/ts01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be omitted.
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Replace a <script> block with the lang attribute omitted.
+      output: |
+        <script></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/typescript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/typescript01-errors.yaml
index b2d700cdf..48a497641 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/typescript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/null/typescript01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <script> block should be omitted.
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Replace a <script> block with the lang attribute omitted.
+      output: |
+        <script></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/javascript01-errors.yaml
index 07ff7e701..b3113014f 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/javascript01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/js01-errors.yaml
index 07ff7e701..b3113014f 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/js01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/typescript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/typescript01-errors.yaml
index 07ff7e701..b3113014f 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/typescript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/typescript01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/javascript01-errors.yaml
index 07ff7e701..b3113014f 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/javascript01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/js01-errors.yaml
index 07ff7e701..b3113014f 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/js01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/typescript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/typescript01-errors.yaml
index 07ff7e701..b3113014f 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/typescript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/typescript01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Replace a <script> block with the lang attribute set to "ts".
       output: |
         <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/javascript01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/javascript01-errors.yaml
index fd6d9fa33..009d419e2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/javascript01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/javascript01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "typescript".
+    - desc: Replace a <script> block with the lang attribute set to "typescript".
       output: |
         <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/js01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/js01-errors.yaml
index fd6d9fa33..009d419e2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/js01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/js01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "typescript".
+    - desc: Replace a <script> block with the lang attribute set to "typescript".
       output: |
         <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/ts01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/ts01-errors.yaml
index fd6d9fa33..009d419e2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/ts01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/ts01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "typescript".
+    - desc: Replace a <script> block with the lang attribute set to "typescript".
       output: |
         <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/null-as-script-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/null-as-script-lang01-errors.yaml
index e476b421b..7455fb148 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/null-as-script-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/null-as-script-lang01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <style> block should be omitted.
   line: 3
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Replace a <style> block with the lang attribute omitted.
+      output: |
+        <script></script>
+
+        <style></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/sass01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/sass01-errors.yaml
index 3685a4a45..676669146 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/sass01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/sass01-errors.yaml
@@ -1,4 +1,9 @@
 - message: The lang attribute of the <style> block should be omitted.
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Replace a <style> block with the lang attribute omitted.
+      output: |
+        <style>
+
+        </style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/scss01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/scss01-errors.yaml
index 3685a4a45..691a404a7 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/scss01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/null/scss01-errors.yaml
@@ -1,4 +1,7 @@
 - message: The lang attribute of the <style> block should be omitted.
   line: 1
   column: 1
-  suggestions: null
+  suggestions:
+    - desc: Replace a <style> block with the lang attribute omitted.
+      output: |
+        <style></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/scss01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/scss01-errors.yaml
index c95226d44..e4f5b57b3 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/scss01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/scss01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <style> block with the lang attribute set to "sass".
+    - desc: Replace a <style> block with the lang attribute set to "sass".
       output: |
         <style lang="sass"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/sass01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/sass01-errors.yaml
index 7255247c5..6560001ac 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/sass01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/sass01-errors.yaml
@@ -2,7 +2,7 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <style> block with the lang attribute set to "scss".
+    - desc: Replace a <style> block with the lang attribute set to "scss".
       output: |
         <style lang="scss">
 

From a9c64a4de9d6697bc8b0db6073921c767e18098d Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 17:12:40 +0900
Subject: [PATCH 11/14] refactor

---
 .../src/rules/block-lang.ts                   | 59 +++++++++----------
 1 file changed, 27 insertions(+), 32 deletions(-)

diff --git a/packages/eslint-plugin-svelte/src/rules/block-lang.ts b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
index c18249966..d78798a25 100644
--- a/packages/eslint-plugin-svelte/src/rules/block-lang.ts
+++ b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
@@ -2,7 +2,7 @@ import { createRule } from '../utils/index.js';
 import { findAttribute, getLangValue } from '../utils/ast-utils.js';
 import type { SvelteScriptElement, SvelteStyleElement } from 'svelte-eslint-parser/lib/ast';
 import { getSourceCode } from '../utils/compat.js';
-import type { SuggestionReportDescriptor } from '../types.js';
+import type { SuggestionReportDescriptor, SourceCode } from '../types.js';
 
 export default createRule('block-lang', {
 	meta: {
@@ -91,20 +91,7 @@ export default createRule('block-lang', {
 						message: `The <script> block should be present and its lang attribute should be ${prettyPrintLangs(
 							allowedScriptLangs
 						)}.`,
-						suggest: allowedScriptLangs
-							.filter((lang) => lang != null && lang !== '')
-							.map((lang) => {
-								return {
-									desc: `Add a <script> block with the lang attribute set to "${lang}".`,
-									fix: (fixer) => {
-										const langAttributeText = getLangAttributeText(lang ?? '', true);
-										return fixer.insertTextAfterRange(
-											[0, 0],
-											`<script${langAttributeText}>\n</script>\n\n`
-										);
-									}
-								};
-							})
+						suggest: buildAddLangSuggestions(allowedScriptLangs, 'script', getSourceCode(context))
 					});
 				}
 				for (const scriptNode of scriptNodes) {
@@ -114,7 +101,7 @@ export default createRule('block-lang', {
 							message: `The lang attribute of the <script> block should be ${prettyPrintLangs(
 								allowedScriptLangs
 							)}.`,
-							suggest: buildSuggestions(allowedScriptLangs, scriptNode)
+							suggest: buildReplaceLangSuggestions(allowedScriptLangs, scriptNode)
 						});
 					}
 				}
@@ -125,20 +112,7 @@ export default createRule('block-lang', {
 						message: `The <style> block should be present and its lang attribute should be ${prettyPrintLangs(
 							allowedStyleLangs
 						)}.`,
-						suggest: allowedStyleLangs
-							.filter((lang) => lang != null && lang !== '')
-							.map((lang) => {
-								return {
-									desc: `Add a <style> block with the lang attribute set to "${lang}".`,
-									fix: (fixer) => {
-										const langAttributeText = getLangAttributeText(lang ?? '', true);
-										return fixer.insertTextAfterRange(
-											[sourceCode.text.length, sourceCode.text.length],
-											`<style${langAttributeText}>\n</style>\n\n`
-										);
-									}
-								};
-							})
+						suggest: buildAddLangSuggestions(allowedStyleLangs, 'style', sourceCode)
 					});
 				}
 				for (const styleNode of styleNodes) {
@@ -148,7 +122,7 @@ export default createRule('block-lang', {
 							message: `The lang attribute of the <style> block should be ${prettyPrintLangs(
 								allowedStyleLangs
 							)}.`,
-							suggest: buildSuggestions(allowedStyleLangs, styleNode)
+							suggest: buildReplaceLangSuggestions(allowedStyleLangs, styleNode)
 						});
 					}
 				}
@@ -157,7 +131,28 @@ export default createRule('block-lang', {
 	}
 });
 
-function buildSuggestions(
+function buildAddLangSuggestions(
+	langs: (string | null)[],
+	tagName: 'script' | 'style',
+	sourceCode: SourceCode
+): SuggestionReportDescriptor[] {
+	return langs
+		.filter((lang) => lang != null && lang !== '')
+		.map((lang) => {
+			return {
+				desc: `Add a lang attribute to a <${tagName}> block with the value "${lang}".`,
+				fix: (fixer) => {
+					const langAttributeText = getLangAttributeText(lang ?? '', true);
+					return fixer.insertTextAfterRange(
+						tagName === 'script' ? [0, 0] : [sourceCode.text.length, sourceCode.text.length],
+						`<${tagName}${langAttributeText}>\n</${tagName}>\n\n`
+					);
+				}
+			};
+		});
+}
+
+function buildReplaceLangSuggestions(
 	langs: (string | null)[],
 	node: SvelteScriptElement | SvelteStyleElement
 ): SuggestionReportDescriptor[] {

From 2d0b3ab3d66bf61a851d21727f5dfa92ac019d16 Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 17:15:18 +0900
Subject: [PATCH 12/14]  sentence

---
 packages/eslint-plugin-svelte/src/rules/block-lang.ts           | 2 +-
 .../script/javascript/javascript-as-style-lang01-errors.yaml    | 2 +-
 .../block-lang/invalid/script/javascript/null01-errors.yaml     | 2 +-
 .../block-lang/invalid/script/js/js-as-style-lang01-errors.yaml | 2 +-
 .../rules/block-lang/invalid/script/js/null01-errors.yaml       | 2 +-
 .../block-lang/invalid/script/module-context/null01-errors.yaml | 2 +-
 .../script/module-context/ts-as-style-lang01-errors.yaml        | 2 +-
 .../block-lang/invalid/script/shorthand/null01-errors.yaml      | 2 +-
 .../invalid/script/shorthand/ts-as-style-lang01-errors.yaml     | 2 +-
 .../rules/block-lang/invalid/script/ts/null01-errors.yaml       | 2 +-
 .../block-lang/invalid/script/ts/ts-as-style-lang01-errors.yaml | 2 +-
 .../block-lang/invalid/script/typescript/null01-errors.yaml     | 2 +-
 .../script/typescript/typescript-as-style-lang01-errors.yaml    | 2 +-
 .../rules/block-lang/invalid/style/sass/null01-errors.yaml      | 2 +-
 .../invalid/style/sass/sass-as-script-lang01-errors.yaml        | 2 +-
 .../rules/block-lang/invalid/style/scss/null01-errors.yaml      | 2 +-
 .../invalid/style/scss/scss-as-script-lang01-errors.yaml        | 2 +-
 17 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/packages/eslint-plugin-svelte/src/rules/block-lang.ts b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
index d78798a25..03eed5b4c 100644
--- a/packages/eslint-plugin-svelte/src/rules/block-lang.ts
+++ b/packages/eslint-plugin-svelte/src/rules/block-lang.ts
@@ -184,7 +184,7 @@ function buildReplaceLangSuggestions(
 			};
 		}
 		return {
-			desc: `Add a <${tagName}> block with the lang attribute set to "${lang}".`,
+			desc: `Add lang attribute to a <${tagName}> block with the value "${lang}".`,
 			fix: (fixer) => {
 				return fixer.insertTextBeforeRange(
 					[node.startTag.range[0] + tagName.length + 1, 0],
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
index 4fe2e382c..13e22b23c 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/javascript-as-style-lang01-errors.yaml
@@ -2,7 +2,7 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "javascript".
+    - desc: Add lang attribute to a <script> block with the value "javascript".
       output: |
         <script lang="javascript"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/null01-errors.yaml
index be37efdc2..dc2fc1ae3 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/javascript/null01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "javascript".
+    - desc: Add lang attribute to a <script> block with the value "javascript".
       output: |
         <script lang="javascript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/js-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/js-as-style-lang01-errors.yaml
index 3832b6f5c..8a4b03344 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/js-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/js-as-style-lang01-errors.yaml
@@ -2,7 +2,7 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "js".
+    - desc: Add lang attribute to a <script> block with the value "js".
       output: |
         <script lang="js"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/null01-errors.yaml
index 89f15181f..21d9f3559 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/js/null01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "js".
+    - desc: Add lang attribute to a <script> block with the value "js".
       output: |
         <script lang="js"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/null01-errors.yaml
index e33140d6f..55c31fb92 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/null01-errors.yaml
@@ -2,7 +2,7 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Add lang attribute to a <script> block with the value "ts".
       output: |
         <script lang="ts" context="module"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/ts-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/ts-as-style-lang01-errors.yaml
index 55a6c2475..286fc43f0 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/ts-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/module-context/ts-as-style-lang01-errors.yaml
@@ -2,7 +2,7 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Add lang attribute to a <script> block with the value "ts".
       output: |
         <script lang="ts" context="module"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/null01-errors.yaml
index 07ff7e701..36748af35 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/null01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Add lang attribute to a <script> block with the value "ts".
       output: |
         <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/ts-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/ts-as-style-lang01-errors.yaml
index afc0714fe..f7b4deadd 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/ts-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/shorthand/ts-as-style-lang01-errors.yaml
@@ -2,7 +2,7 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Add lang attribute to a <script> block with the value "ts".
       output: |
         <script lang="ts"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/null01-errors.yaml
index 07ff7e701..36748af35 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/null01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Add lang attribute to a <script> block with the value "ts".
       output: |
         <script lang="ts"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/ts-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/ts-as-style-lang01-errors.yaml
index afc0714fe..f7b4deadd 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/ts-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/ts/ts-as-style-lang01-errors.yaml
@@ -2,7 +2,7 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "ts".
+    - desc: Add lang attribute to a <script> block with the value "ts".
       output: |
         <script lang="ts"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/null01-errors.yaml
index fd6d9fa33..7dd6e1087 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/null01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "typescript".
+    - desc: Add lang attribute to a <script> block with the value "typescript".
       output: |
         <script lang="typescript"></script>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/typescript-as-style-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/typescript-as-style-lang01-errors.yaml
index 4013f25ef..548cee283 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/typescript-as-style-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/script/typescript/typescript-as-style-lang01-errors.yaml
@@ -2,7 +2,7 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <script> block with the lang attribute set to "typescript".
+    - desc: Add lang attribute to a <script> block with the value "typescript".
       output: |
         <script lang="typescript"></script>
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/null01-errors.yaml
index c95226d44..5721fb560 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/null01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <style> block with the lang attribute set to "sass".
+    - desc: Add lang attribute to a <style> block with the value "sass".
       output: |
         <style lang="sass"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/sass-as-script-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/sass-as-script-lang01-errors.yaml
index 90d406a34..d08f5177a 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/sass-as-script-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/sass/sass-as-script-lang01-errors.yaml
@@ -2,7 +2,7 @@
   line: 5
   column: 1
   suggestions:
-    - desc: Add a <style> block with the lang attribute set to "sass".
+    - desc: Add lang attribute to a <style> block with the value "sass".
       output: |
         <script lang="sass">
 
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/null01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/null01-errors.yaml
index 57a6b031a..2d800e25c 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/null01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/null01-errors.yaml
@@ -2,6 +2,6 @@
   line: 1
   column: 1
   suggestions:
-    - desc: Add a <style> block with the lang attribute set to "scss".
+    - desc: Add lang attribute to a <style> block with the value "scss".
       output: |
         <style lang="scss"></style>
diff --git a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/scss-as-script-lang01-errors.yaml b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/scss-as-script-lang01-errors.yaml
index cfd3f7ec1..cd949e0a2 100644
--- a/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/scss-as-script-lang01-errors.yaml
+++ b/packages/eslint-plugin-svelte/tests/fixtures/rules/block-lang/invalid/style/scss/scss-as-script-lang01-errors.yaml
@@ -2,7 +2,7 @@
   line: 3
   column: 1
   suggestions:
-    - desc: Add a <style> block with the lang attribute set to "scss".
+    - desc: Add lang attribute to a <style> block with the value "scss".
       output: |
         <script lang="scss"></script>
 

From 983a9f5d3183cfcd658eda9946426a75d267a1c0 Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 17:23:17 +0900
Subject: [PATCH 13/14] update

---
 README.md                | 2 +-
 docs/rules.md            | 2 +-
 docs/rules/block-lang.md | 2 ++
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 7c0ae636f..72cad6960 100644
--- a/README.md
+++ b/README.md
@@ -354,7 +354,7 @@ These rules relate to better ways of doing things to help you avoid problems:
 
 | Rule ID | Description |    |
 |:--------|:------------|:---|
-| [svelte/block-lang](https://sveltejs.github.io/eslint-plugin-svelte/rules/block-lang/) | disallows the use of languages other than those specified in the configuration for the lang attribute of `<script>` and `<style>` blocks. |  |
+| [svelte/block-lang](https://sveltejs.github.io/eslint-plugin-svelte/rules/block-lang/) | disallows the use of languages other than those specified in the configuration for the lang attribute of `<script>` and `<style>` blocks. | :bulb: |
 | [svelte/button-has-type](https://sveltejs.github.io/eslint-plugin-svelte/rules/button-has-type/) | disallow usage of button without an explicit type attribute |  |
 | [svelte/no-at-debug-tags](https://sveltejs.github.io/eslint-plugin-svelte/rules/no-at-debug-tags/) | disallow the use of `{@debug}` | :star: |
 | [svelte/no-ignored-unsubscribe](https://sveltejs.github.io/eslint-plugin-svelte/rules/no-ignored-unsubscribe/) | disallow ignoring the unsubscribe method returned by the `subscribe()` on Svelte stores. |  |
diff --git a/docs/rules.md b/docs/rules.md
index 023d611c0..c5f74fca0 100644
--- a/docs/rules.md
+++ b/docs/rules.md
@@ -51,7 +51,7 @@ These rules relate to better ways of doing things to help you avoid problems:
 
 | Rule ID                                                                                  | Description                                                                                                                               |          |
 | :--------------------------------------------------------------------------------------- | :---------------------------------------------------------------------------------------------------------------------------------------- | :------- |
-| [svelte/block-lang](./rules/block-lang.md)                                               | disallows the use of languages other than those specified in the configuration for the lang attribute of `<script>` and `<style>` blocks. |          |
+| [svelte/block-lang](./rules/block-lang.md)                                               | disallows the use of languages other than those specified in the configuration for the lang attribute of `<script>` and `<style>` blocks. | :bulb:   |
 | [svelte/button-has-type](./rules/button-has-type.md)                                     | disallow usage of button without an explicit type attribute                                                                               |          |
 | [svelte/no-at-debug-tags](./rules/no-at-debug-tags.md)                                   | disallow the use of `{@debug}`                                                                                                            | :star:   |
 | [svelte/no-ignored-unsubscribe](./rules/no-ignored-unsubscribe.md)                       | disallow ignoring the unsubscribe method returned by the `subscribe()` on Svelte stores.                                                  |          |
diff --git a/docs/rules/block-lang.md b/docs/rules/block-lang.md
index 2a5eb996b..e5e12d807 100644
--- a/docs/rules/block-lang.md
+++ b/docs/rules/block-lang.md
@@ -10,6 +10,8 @@ since: 'v2.18.0'
 
 > disallows the use of languages other than those specified in the configuration for the lang attribute of `<script>` and `<style>` blocks.
 
+- :bulb: Some problems reported by this rule are manually fixable by editor [suggestions](https://eslint.org/docs/developer-guide/working-with-rules#providing-suggestions).
+
 ## :book: Rule Details
 
 This rule enforces all svelte components to use the same set of languages for their scripts and styles.

From 6dba947fefd325c664c4da03054bc22aa4aa25f0 Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Mon, 30 Dec 2024 17:25:46 +0900
Subject: [PATCH 14/14] add changeset

---
 .changeset/fifty-parents-itch.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/fifty-parents-itch.md

diff --git a/.changeset/fifty-parents-itch.md b/.changeset/fifty-parents-itch.md
new file mode 100644
index 000000000..c5f1b3634
--- /dev/null
+++ b/.changeset/fifty-parents-itch.md
@@ -0,0 +1,5 @@
+---
+'eslint-plugin-svelte': minor
+---
+
+feat: Added suggestion to the `block-lang` rule.