Function resolveExpansion

lib/internal/modules/cjs/loader.js:719–732

(expansion, pkgJsonPath, pkgData, parentPath, conditions)

}

function resolveExpansion(expansion, pkgJsonPath, pkgData, parentPath, conditions) {
  const pkgPath = path.dirname(pkgJsonPath);
  try {
    const { packageExportsResolve } = require('internal/modules/esm/resolve');
    return finalizeEsmResolution(packageExportsResolve(
      pathToFileURL(pkgJsonPath), expansion, pkgData,
      pathToFileURL(parentPath), conditions), parentPath, pkgPath);
  } catch (e) {
    if (e.code === 'ERR_MODULE_NOT_FOUND') {
      throw createEsmNotFoundErr(expansion, pkgPath);
    }
    throw e;
  }
}

/**
 * This only applies to requests of a specific form: