fix: handles ts script tags as well (#13)

assets/example/routes/+page.svelte

@@ -1,7 +1,11 @@
-<script>
+<script lang="ts">
+  function $i18n(key: string, params?: any) {
+    return key;
+  }
   let title = $i18n('title');
   const def = [$i18n('item0'), $i18n('item1')];
 </script>
+
 <main>
   <section>
     {$i18n('intro')}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vardario/svelte-i18next",
-  "version": "0.1.12",
+  "version": "0.1.13",
   "description": "",
   "license": "MIT",
   "author": "Sahin Vardar",

src/i18n-preprocessor.test.ts

@@ -4,19 +4,24 @@ import * as compiler from 'svelte/compiler';
 import { describe, expect, test } from 'vitest';
 import { i18nProcessor } from './i18n-preprocessor.js';
 import { __dirname } from './utils.js';
+//@ts-expect-error
+import { vitePreprocess } from '@sveltejs/kit/vite';
 
 const examplePath = path.resolve(__dirname(import.meta), '../assets/example');
-const preprocessor = i18nProcessor({
-  indent: {
-    indent: '',
-    lineEnd: ''
-  }
-});
+const preprocessors = [
+  vitePreprocess(),
+  i18nProcessor({
+    indent: {
+      indent: '',
+      lineEnd: ''
+    }
+  })
+];
 
 async function testComponent(filename: string, expectation: string) {
   const componentPath = path.resolve(examplePath, filename);
   const componentContent = (await fs.readFile(componentPath)).toString('utf-8');
-  const preprocessed = await compiler.preprocess(componentContent, preprocessor, { filename });
+  const preprocessed = await compiler.preprocess(componentContent, preprocessors, { filename });
 
   expect(preprocessed.code).toBe(expectation);
 }

src/i18n-preprocessor.ts

@@ -129,7 +129,7 @@ export const i18nProcessor = (options?: I18nProcessorOptions): PreprocessorGroup
     },
     async script({ content, filename }) {
       return preprocess(content, filename, async () => {
-        const program = parse(content, { ecmaVersion: 'latest' }) as Node;
+        const program = parse(content, { ecmaVersion: 'latest', sourceType:'module' }) as Node;
         const keyPath = extractKeyPathFromFile(filename!);
         adjustI18nCall(program, keyPath, callIdentifier);
         return { code: generate(program) };