feat: using magicStr to generate sourcemap

package.json

@@ -81,6 +81,7 @@
     "@rollup/pluginutils": "^5.0.2",
     "@xn-sakina/rml-wasm": "^2.1.1",
     "debug": "^4.3.4",
+    "magic-string": "^0.30.5",
     "rs-module-lexer": "^2.1.1"
   },
   "ava": {

src/index.ts

@@ -73,12 +73,12 @@ function transformPresetModule(api: ExternalPluginAPI): Plugin {
       if (!api.filter(id)) return
       if (!id.includes(nodeModules)) return
       // coomonjs
-      code = transformCJSRequire(code, api.dependency.dependency)
+      const result = transformCJSRequire(code, dependency.dependency)
       // esm
       if (dependency.filter(code, id)) {
         return transformWithBabel(code, dependency) 
       }
-      return { code }
+      return result
     }
   }
 } 

src/shared.ts

@@ -2,6 +2,7 @@ import path from 'path'
 import fs from 'fs'
 import os from 'os'
 import process from 'process'
+import MagicString from 'magic-string'
 import AggregateError from '@nolyfill/es-aggregate-error'
 import { ModuleInfo } from './interface'
 
@@ -39,11 +40,12 @@ export function is(condit: boolean, message: string) {
 export const _import = new Function('specifier', 'return import(specifier)')
 
 export function transformCJSRequire(code: string, extenrals: Record<string, ModuleInfo>) {
+  const s = new MagicString(code)
   for (const externalModule in extenrals) {
     const reg = new RegExp(`require\\((["'\`])\\s*${externalModule}\\s*(\\1)\\)`, 'g')
-    code = code.replace(reg, extenrals[externalModule].global)
+    s.replace(reg, extenrals[externalModule].global)
   }
-  return code
+  return { code: s.toString(), map: s.generateMap() }
 }
 
 export const MAX_CONCURRENT = (() => {

yarn.lock

@@ -4787,6 +4787,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"magic-string@npm:^0.30.5":
+  version: 0.30.5
+  resolution: "magic-string@npm:0.30.5"
+  dependencies:
+    "@jridgewell/sourcemap-codec": ^1.4.15
+  checksum: da10fecff0c0a7d3faf756913ce62bd6d5e7b0402be48c3b27bfd651b90e29677e279069a63b764bcdc1b8ecdcdb898f29a5c5ec510f2323e8d62ee057a6eb18
+  languageName: node
+  linkType: hard
+
 "make-dir@npm:^3.0.0":
   version: 3.1.0
   resolution: "make-dir@npm:3.1.0"
@@ -6769,6 +6778,7 @@ __metadata:
     debug: ^4.3.4
     eslint: ^8.51.0
     eslint-config-kagura: ^2.0.1
+    magic-string: ^0.30.5
     playwright: ^1.35.1
     react: ^18.2.0
     rs-module-lexer: ^2.1.1