perf: use @jridgewell/sourcemap-codec

benchmark/index.mjs

@@ -8,7 +8,7 @@ console.log(`node ${process.version}\n`);
 
 function runWithInstance(name, inputs, func, setup) {
 	const ss = [];
-	return new Benchmark(
+	new Benchmark(
 		name,
 		{
 			setup: () => {
@@ -39,17 +39,17 @@ async function bench() {
 		)
 	);
 
-		new Benchmark('construct', {
-			fn: () => {
-				for (const input of inputs) {
-					new MagicString(input);
-				}
+	new Benchmark('construct', {
+		fn: () => {
+			for (const input of inputs) {
+				new MagicString(input);
 			}
-		}).on('complete', (event) => {
-			console.log(String(event.target));
-		}).on('error', (event) => {
-			console.error(event.target.error);
-		}).run()
+		}
+	}).on('complete', (event) => {
+		console.log(String(event.target));
+	}).on('error', (event) => {
+		console.error(event.target.error);
+	}).run();
 
 	runWithInstance('append', inputs, s => {
 		s.append(';"append";');

package.json

@@ -42,9 +42,6 @@
     "bench": "npm run build && node benchmark/index.mjs",
     "watch": "rollup -cw"
   },
-  "dependencies": {
-    "sourcemap-codec": "^1.4.8"
-  },
   "devDependencies": {
     "@rollup/plugin-node-resolve": "^13.1.3",
     "@rollup/plugin-replace": "^4.0.0",
@@ -60,5 +57,8 @@
   },
   "engines": {
     "node": ">=12"
+  },
+  "dependencies": {
+    "@jridgewell/sourcemap-codec": "^1.4.13"
   }
 }

rollup.config.js

@@ -10,7 +10,7 @@ export default [
 	/* esm */
 	{
 		input: 'src/index.js',
-		external: ['sourcemap-codec'],
+		external: ['@jridgewell/sourcemap-codec'],
 		plugins,
 		output: {
 			file: 'dist/magic-string.es.mjs',
@@ -23,7 +23,7 @@ export default [
 	/* cjs */
 	{
 		input: 'src/index-legacy.js',
-		external: ['sourcemap-codec'],
+		external: ['@jridgewell/sourcemap-codec'],
 		plugins,
 		output: {
 			file: 'dist/magic-string.cjs.js',

src/SourceMap.js

@@ -1,4 +1,4 @@
-import { encode } from 'sourcemap-codec';
+import { encode } from '@jridgewell/sourcemap-codec';
 
 let btoa = () => {
 	throw new Error('Unsupported environment: `window.btoa` or `Buffer` should be supported.');