resolveSubpathImports() — vite Function Reference

Architecture documentation for the resolveSubpathImports() function in resolve.ts from the vite codebase.

Function typescript PluginSystem LegacySupport calls 3 called by 1

Entity Profile

PluginSystem→ LegacySupport→ resolveSubpathImports() — vite Function Reference

Dependency Diagram

graph TD
  3565bb57_e3d1_ed21_b20a_81fa198f92df["resolveSubpathImports()"]
  dcff87b0_a8ea_57a2_3b29_a7b8f19986f3["resolve.ts"]
  3565bb57_e3d1_ed21_b20a_81fa198f92df -->|defined in| dcff87b0_a8ea_57a2_3b29_a7b8f19986f3
  0ac6860f_bc2f_9818_86d4_22179cc9c8ba["oxcResolvePlugin()"]
  0ac6860f_bc2f_9818_86d4_22179cc9c8ba -->|calls| 3565bb57_e3d1_ed21_b20a_81fa198f92df
  31b651d6_9d57_14b0_2e8c_d85642bc19f4["findNearestPackageData()"]
  3565bb57_e3d1_ed21_b20a_81fa198f92df -->|calls| 31b651d6_9d57_14b0_2e8c_d85642bc19f4
  09d0a948_4a89_8bbc_50ce_129fc70dbd66["splitFileAndPostfix()"]
  3565bb57_e3d1_ed21_b20a_81fa198f92df -->|calls| 09d0a948_4a89_8bbc_50ce_129fc70dbd66
  c10abc49_1d0c_ffeb_c31f_9afc51ce808b["resolveExportsOrImports()"]
  3565bb57_e3d1_ed21_b20a_81fa198f92df -->|calls| c10abc49_1d0c_ffeb_c31f_9afc51ce808b
  style 3565bb57_e3d1_ed21_b20a_81fa198f92df fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/vite/src/node/plugins/resolve.ts lines 491–520

function resolveSubpathImports(
  id: string,
  importer: string | undefined,
  options: InternalResolveOptions,
) {
  if (!importer || !id.startsWith(subpathImportsPrefix)) return
  const basedir = path.dirname(importer)
  const pkgData = findNearestPackageData(basedir, options.packageCache)
  if (!pkgData) return

  let { file: idWithoutPostfix, postfix } = splitFileAndPostfix(id.slice(1))
  idWithoutPostfix = '#' + idWithoutPostfix

  let importsPath = resolveExportsOrImports(
    pkgData.data,
    idWithoutPostfix,
    options,
    'imports',
  )

  if (importsPath?.[0] === '.') {
    importsPath = path.relative(basedir, path.join(pkgData.dir, importsPath))

    if (!relativePrefixRE.test(importsPath)) {
      importsPath = `./${importsPath}`
    }
  }

  return importsPath + postfix
}