drop support for typescript 4 (#253)

Author: n1ru4l

.changeset/bob-the-bundler-229-dependencies.md

@@ -1,5 +1,9 @@
 ---
-"bob-the-bundler": patch
+'bob-the-bundler': patch
 ---
+
 dependencies updates:
-  - Updated dependency [`typescript@^4.7.4 || ^5.0.0` ↗︎](https://www.npmjs.com/package/typescript/v/4.7.4) (from `^4.7.4`, in `peerDependencies`)
+
+- Updated dependency
+  [`typescript@^4.7.4 || ^5.0.0` ↗︎](https://www.npmjs.com/package/typescript/v/4.7.4) (from
+  `^4.7.4`, in `peerDependencies`)

.changeset/ninety-plants-pump.md

@@ -0,0 +1,5 @@
+---
+'bob-the-bundler': major
+---
+
+Drop support for typescript 4.

package.json

@@ -45,7 +45,7 @@
     "test:ts": "node test/ts-tests/run-tests.mjs"
   },
   "peerDependencies": {
-    "typescript": "^4.7.4 || ^5.0.0"
+    "typescript": "^5.0.0"
   },
   "dependencies": {
     "consola": "^2.15.3",

test/integration.spec.ts

@@ -22,10 +22,10 @@ it('can bundle a simple project', async () => {
 
   expect(await fse.readFile(indexJsFilePath, 'utf8')).toMatchInlineSnapshot(`
     "use strict";
-    exports.__esModule = true;
+    Object.defineProperty(exports, "__esModule", { value: true });
     exports.someNumber = void 0;
     exports.someNumber = 1;
-    exports["default"] = 'kek';
+    exports.default = 'kek';
   `);
   expect(await fse.readFile(indexDtsFilePath, 'utf8')).toMatchInlineSnapshot(`
     export declare const someNumber = 1;
@@ -406,11 +406,9 @@ it('can build a types only project', async () => {
     }
   `);
 
-  await expect(fse.readFile(path.resolve(baseDistPath, 'cjs', 'index.js'), 'utf8')).resolves
-    .toMatchInlineSnapshot(`
-    "use strict";
-    exports.__esModule = true;
-  `);
+  await expect(
+    fse.readFile(path.resolve(baseDistPath, 'cjs', 'index.js'), 'utf8'),
+  ).resolves.toMatchInlineSnapshot('');
   await expect(
     fse.readFile(path.resolve(baseDistPath, 'esm', 'index.js'), 'utf8'),
   ).resolves.toMatchInlineSnapshot('');
@@ -727,10 +725,10 @@ it('can bundle a tsconfig-build-json project', async () => {
   await expect(fse.readFile(path.resolve(baseDistPath, 'cjs', 'index.js'), 'utf8')).resolves
     .toMatchInlineSnapshot(`
     "use strict";
-    exports.__esModule = true;
+    Object.defineProperty(exports, "__esModule", { value: true });
     exports.hello = void 0;
     exports.hello = 1;
-    exports["default"] = 'there';
+    exports.default = 'there';
   `);
   await expect(fse.readFile(path.resolve(baseDistPath, 'esm', 'index.js'), 'utf8')).resolves
     .toMatchInlineSnapshot(`