Function resolveSourceIndex

core/parcel-resolver/src/shared.ts:96–115

(
  absoluteBaseFile: string,
  checkingExts = relevantExtensionList as readonly string[],
  opts = {} as Partial<ResolveResult>
)

 * Look for source code file (crawl index)
 */
export const resolveSourceIndex = async (
  absoluteBaseFile: string,
  checkingExts = relevantExtensionList as readonly string[],
  opts = {} as Partial<ResolveResult>
): Promise<ResolverResult> => {
  const potentialFiles = checkingExts.flatMap((ext) => [
    `${absoluteBaseFile}${ext}`,
    resolve(absoluteBaseFile, `index${ext}`)
  ])

  for (const file of potentialFiles) {
    try {
      if (statSync(file).isFile()) {
        return { filePath: file, ...opts }
      }
    } catch {}
  }

  return null
}