feat: Svelte support via Volar

index.js

@@ -1,5 +1,6 @@
 const { parsers: babelParsers } = require('prettier/parser-babel');
 const { parsers: htmlParsers } = require('prettier/parser-html');
+const { parsers: svelteParsers } = require('prettier-plugin-svelte');
 const { parsers: typescriptParsers } = require('prettier/parser-typescript');
 
 const { organize } = require('./lib/organize');
@@ -59,6 +60,7 @@ const plugin = {
 	parsers: {
 		babel: withOrganizeImportsPreprocess(babelParsers.babel),
 		'babel-ts': withOrganizeImportsPreprocess(babelParsers['babel-ts']),
+		svelte: withOrganizeImportsPreprocess(svelteParsers.svelte),
 		typescript: withOrganizeImportsPreprocess(typescriptParsers.typescript),
 		vue: withOrganizeImportsPreprocess(htmlParsers.vue),
 	},

lib/get-language-service.js

@@ -10,6 +10,12 @@ const { getTypeScriptLanguageServiceHost, getVueLanguageServiceHost } = require(
  * @returns {ts.LanguageService}
  */
 const getLanguageService = (parser, filepath, code) => {
+	if (parser === 'svelte') {
+		return require('@volar-examples/svelte-typescript').createLanguageService(
+			getVueLanguageServiceHost(filepath, code),
+		);
+	}
+
 	if (parser === 'vue') {
 		return require('@volar/vue-typescript').createLanguageService(getVueLanguageServiceHost(filepath, code));
 	}

lib/organize.js

@@ -12,7 +12,7 @@ module.exports.organize = (
 	code,
 	{ filepath = 'file.ts', organizeImportsSkipDestructiveCodeActions, parentParser, parser },
 ) => {
-	if (parentParser === 'vue') {
+	if (parentParser === 'vue' || parentParser === 'svelte') {
 		// we already did the preprocessing in the parent parser, so we skip the child parsers
 		return code;
 	}

package.json

@@ -24,26 +24,36 @@
   "repository": "simonhaenisch/prettier-plugin-organize-imports",
   "homepage": "https://github.com/simonhaenisch/prettier-plugin-organize-imports#readme",
   "peerDependencies": {
+    "@volar-examples/svelte-typescript": "^1.0.4",
     "@volar/vue-language-plugin-pug": "^1.0.4",
     "@volar/vue-typescript": "^1.0.4",
     "prettier": ">=2.0",
+    "prettier-plugin-svelte": "^2.8.0",
     "typescript": ">=2.9"
   },
   "peerDependenciesMeta": {
+    "@volar-examples/svelte-typescript": {
+      "optional": true
+    },
     "@volar/vue-language-plugin-pug": {
       "optional": true
     },
     "@volar/vue-typescript": {
       "optional": true
+    },
+    "prettier-plugin-svelte": {
+      "optional": true
     }
   },
   "devDependencies": {
     "@types/node": "18.11.9",
     "@types/prettier": "2.7.1",
+    "@volar-examples/svelte-typescript": "1.0.9",
     "@volar/vue-language-plugin-pug": "1.0.9",
     "@volar/vue-typescript": "1.0.9",
     "ava": "3.15.0",
     "prettier": "2.7.1",
+    "prettier-plugin-svelte": "2.8.0",
     "typescript": "4.8.4"
   },
   "prettier": {

test.js

@@ -182,6 +182,32 @@ Foo
 	t.is(formattedCode, code);
 });
 
+test('has basic Svelte support', (t) => {
+	const code = `
+	<script>
+		import Foo from './Foo.svelte';
+		import Bar from './Bar.svelte';
+		import Unused from './Unused.svelte';
+	</script>
+
+	<Foo />
+	<Bar />
+	`;
+
+	const expectedCode = `<script>
+  import Bar from "./Bar.svelte";
+  import Foo from "./Foo.svelte";
+</script>
+
+<Foo />
+<Bar />
+`;
+
+	const formattedCode = prettify(code, { plugins: ['prettier-plugin-svelte', '.'], filepath: 'file.svelte' });
+
+	t.is(formattedCode, expectedCode);
+});
+
 test('does not remove unused imports with `organizeImportsSkipDestructiveCodeActions` enabled', (t) => {
 	const code = `import { foo } from "./bar";
 `;