wip

Author: baseballyama

README.md

@@ -286,9 +286,10 @@ export default [
         svelteFeatures: {
           /* -- Experimental Svelte Features -- */
           /* It may be changed or removed in minor versions without notice. */
-          // If true, it will analyze Runes.
-          // By default, it will try to read `compilerOptions.runes` from `svelte.config.js`.
-          // However, note that if `parserOptions.svelteConfig` is not specified and the file cannot be parsed by static analysis, it will behave as `false`.
+          // This option is for only Svelte 5. The default value is `true`.
+          // If `false`, ESLint will not recognize rune symbols.
+          // If not configured, it will try to read `compilerOptions.runes` from `svelte.config.js`.
+          // However, note that if `parserOptions.svelteConfig` is not specified and the file cannot be parsed by static analysis, it will behave as `true` if Svelte version is 5. Otherwise `false`.
           runes: false,
           /* -- Experimental Svelte Features -- */
           /* It may be changed or removed in minor versions without notice. */
@@ -329,7 +330,8 @@ For example in `.eslintrc.*`:
 
 **_This is an experimental feature. It may be changed or removed in minor versions without notice._**
 
-If you install Svelte v5 and turn on runes (`compilerOptions.runes` in `svelte.config.js` or `parserOptions.svelteFeatures.runes` in ESLint config is `true`), the parser will be able to parse runes, and will also be able to parse `*.js` and `*.ts` files.
+If you install Svelte v5 the parser will be able to parse runes, and will also be able to parse `*.js` and `*.ts` files.
+If you don't want to use Runes, you may need to configure. Please read [parserOptions.svelteFeatures](#parseroptionssveltefeatures) for more details.
 
 When using this mode in an ESLint configuration, it is recommended to set it per file pattern as below.
 
@@ -383,15 +385,13 @@ For example in `.eslintrc.*`:
       "parser": "svelte-eslint-parser",
       "parserOptions": {
         "parser": "...",
-        "svelteFeatures": { "runes": true },
         /* ... */
       },
     },
     {
       "files": ["*.svelte.js"],
       "parser": "svelte-eslint-parser",
       "parserOptions": {
-        "svelteFeatures": { "runes": true },
         /* ... */
       },
     },
@@ -400,7 +400,6 @@ For example in `.eslintrc.*`:
       "parser": "svelte-eslint-parser",
       "parserOptions": {
         "parser": "...(ts parser)...",
-        "svelteFeatures": { "runes": true },
         /* ... */
       },
     },

src/parser/svelte-parse-context.ts

@@ -28,7 +28,7 @@ export function isEnableRunes(
   } else if (svelteConfig?.compilerOptions?.runes != null) {
     return Boolean(svelteConfig.compilerOptions.runes);
   }
-  return false;
+  return true;
 }
 
 export function resolveSvelteParseContextForSvelte(