add undetermined

Author: baseballyama

packages/eslint-plugin-svelte/src/utils/svelte-context.ts

@@ -9,7 +9,7 @@ const isRunInBrowser = !fs.readFileSync;
 export type SvelteContext = {
 	svelteVersion: '3/4' | '5';
 	svelteFileType: '.svelte' | '.svelte.[js|ts]' | null;
-	runes: boolean;
+	runes: boolean | 'undetermined';
 	svelteKitVersion: '1-next' | '1' | '2' | null;
 	svelteKitFileType:
 		| '+page.svelte'
@@ -187,7 +187,7 @@ export function getSvelteContext(context: RuleContext): SvelteContext | null {
 
 	return {
 		svelteVersion: getSvelteVersion(compilerVersion),
-		runes: svelteParseContext.runes === true,
+		runes: svelteParseContext.runes ?? 'undetermined',
 		svelteFileType: getSvelteFileType(filePath),
 		svelteKitVersion: svelteKitContext.svelteKitVersion,
 		svelteKitFileType: svelteKitContext.svelteKitFileType

packages/eslint-plugin-svelte/tests/src/index.spec.ts

@@ -17,6 +17,14 @@ const actualSvelte5: Parameters<typeof shouldRun>[0] = {
 	svelteKitFileType: null
 };
 
+const actualUndetermined: Parameters<typeof shouldRun>[0] = {
+	svelteVersion: '5',
+	svelteFileType: '.svelte',
+	runes: 'undetermined',
+	svelteKitVersion: null,
+	svelteKitFileType: null
+};
+
 const actualSvelte5Script: Parameters<typeof shouldRun>[0] = {
 	svelteVersion: '5',
 	svelteFileType: '.svelte.[js|ts]',
@@ -131,6 +139,18 @@ describe('shouldRun', () => {
 		);
 	});
 
+	it('undetermined true', () => {
+		assert.strictEqual(
+			shouldRun(actualUndetermined, [
+				{
+					svelteVersions: ['5'],
+					runes: ['undetermined']
+				}
+			]),
+			true
+		);
+	});
+
 	it('and false', () => {
 		assert.strictEqual(
 			shouldRun(actualSvelte5, [