feat: support TypeScript 6

.gitignore

@@ -4,3 +4,4 @@ node_modules
 coverage
 dist/
 .idea
+*.tsbuildinfo

package.json

@@ -81,7 +81,7 @@
     "stylus": "^0.55.0",
     "sugarss": "^4.0.0",
     "svelte": "^4.0.0",
-    "typescript": "^5.0.2",
+    "typescript": "^6.0.2",
     "vitest": "^1.6.0"
   },
   "peerDependencies": {
@@ -95,7 +95,7 @@
     "stylus": ">=0.55",
     "sugarss": "^2.0.0 || ^3.0.0 || ^4.0.0",
     "svelte": "^4.0.0 || ^5.0.0-next.100 || ^5.0.0",
-    "typescript": "^5.0.0"
+    "typescript": "^5.0.0 || ^6.0.0"
   },
   "peerDependenciesMeta": {
     "@babel/core": {

src/autoProcess.ts

@@ -58,7 +58,7 @@ export function sveltePreprocess(
   {
     aliases,
     markupTagName = 'template',
-    sourceMap = process?.env?.NODE_ENV === 'development' ?? false,
+    sourceMap = process?.env?.NODE_ENV === 'development' || false,
     ...rest
   } = {} as AutoPreprocessOptions,
 ): AutoPreprocessGroup {

src/processors/babel.ts

@@ -6,7 +6,7 @@ import type { PreprocessorGroup, Options } from '../types';
 
 const babel = (options?: Options.Babel): PreprocessorGroup => ({
   async script(svelteFile) {
-    const { transformer } = await import('../transformers/babel');
+    const { transformer } = await import('../transformers/babel.js');
 
     let { content, filename, dependencies, attributes } =
       await getTagInfo(svelteFile);

src/processors/coffeescript.ts

@@ -6,7 +6,7 @@ import type { PreprocessorGroup, Options } from '../types';
 
 const coffeescript = (options?: Options.Coffeescript): PreprocessorGroup => ({
   async script(svelteFile) {
-    const { transformer } = await import('../transformers/coffeescript');
+    const { transformer } = await import('../transformers/coffeescript.js');
 
     let { content, filename, attributes, lang, dependencies } =
       await getTagInfo(svelteFile);

src/processors/globalStyle.ts

@@ -3,7 +3,7 @@ import type { PreprocessorGroup } from '../types';
 const globalStyle = (): PreprocessorGroup => {
   return {
     async style({ content, attributes, filename }) {
-      const { transformer } = await import('../transformers/globalStyle');
+      const { transformer } = await import('../transformers/globalStyle.js');
 
       if (!attributes.global) {
         return { code: content };