`Unexpected keyword "export"`, when importing Sentry

[spiffytech]

Version

v0.1.13 (canary e94e6d8d)

Platform

Linux spiffytop 5.19.8-1-default #1 SMP PREEMPT_DYNAMIC Thu Sep 8 10:26:47 UTC 2022 (0330383) x86_64 x86_64 x86_64 GNU/Linux

What steps will reproduce the bug?

sentry-test.js

import Sentry from '@sentry/node';
console.log(Sentry);

How often does it reproduce? Is there a required condition?

100%

What is the expected behavior?

Successful import

What do you see instead?

$ bun run sentry-test.js
[0.05ms] ".env"
1 | export { _asyncNullishCoalesce } from './_asyncNullishCoalesce.js';
2 | export { _asyncOptionalChain } from './_asyncOptionalChain.js';
3 | export { _asyncOptionalChainDelete } from './_asyncOptionalChainDelete.js';
4 | export { _createNamedExportFrom } from './_createNamedExportFrom.js';
   ^
TypeError: Unexpected keyword 'export' while parsing module "/home/spiffytech/Documents/bootspoon/impermalink/node_modules/@sentry/utils/esm/buildPolyfills/_createNamedExportFrom.js"
      at /home/spiffytech/Documents/bootspoon/impermalink/node_modules/@sentry/utils/esm/buildPolyfills/index.js:4:0
      at /home/spiffytech/Documents/bootspoon/impermalink/node_modules/@sentry/utils/esm/index.js:5:0
      at /home/spiffytech/Documents/bootspoon/impermalink/node_modules/@sentry/core/esm/integrations/index.js:1:0

Additional information

Jarred's remarks from Discord:

There's a few reasons why this module wouldn't work but it is interesting that this is happening at the top-level of this file

bun hasn't implemented the module for async local storage

which Sentry likely depends on

this particular bug though looks like it did an esm -> cjs transform but for some reason there was leftover export statements

this is the kind of code that breaks the most in bun's transpiler right now -- other transpilers

$ cat /home/spiffytech/Documents/bootspoon/impermalink/node_modules/@sentry/utils/esm/buildPolyfills/_createNamedExportFrom.js
/**
 * Copy a property from the given object into `exports`, under the given name.
 *
 * Adapted from Sucrase (https://github.com/alangpierce/sucrase)
 *
 * @param obj The object containing the property to copy.
 * @param localName The name under which to export the property
 * @param importedName The name under which the property lives in `obj`
 */
function _createNamedExportFrom(obj, localName, importedName) {
  exports[localName] = obj[importedName];
}

// Sucrase version:
// function _createNamedExportFrom(obj, localName, importedName) {
//   Object.defineProperty(exports, localName, {enumerable: true, get: () => obj[importedName]});
// }

export { _createNamedExportFrom };
//# sourceMappingURL=_createNamedExportFrom.js.map