Function getImportMapFilename

packages/plugin-legacy/src/index.ts:818–825

(config: ResolvedConfig)

}

function getImportMapFilename(config: ResolvedConfig): string {
  const chunkImportMap =
    config.build.rolldownOptions.experimental?.chunkImportMap
  if (typeof chunkImportMap === 'object' && chunkImportMap.fileName) {
    return chunkImportMap.fileName
  }
  return 'importmap.json'
}

export async function detectPolyfills(
  code: string,