SWC Core throws / prints (misleading) error

[jd-carroll]

Describe the bug

We are receiving hundreds of errors in our console using TSUP + @swc/core:

  ERROR  failed to read input source map: failed to parse inline source map url
index.js.map
Caused by:
    relative URL without a base
    at /Users/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/swc-0.273.27/src/lib.rs:385

These errors seem to be thrown when the corresponding .js.map file is missing from the bundled sources.

It would be nice if @swc/core printed a more meaningful error message.

Note: I have no idea how to produce a repro, but I've spent a fair bit of time debugging this with console.log and I am relatively confident that this is the case.

Input code

No response

Config

No response

Playground link (or link to the minimal reproduction)

https://github.com/egoist/tsup/blob/00188a0dc848c48fac45de245d1e021f370a84a3/src/esbuild/swc.ts#L31-L49

SWC Info output

No response

Expected behavior

If an error is to be thrown / printed, print something more descriptive to the issue as well as a little more context.

Actual behavior

No response

Version

1.5.5

Additional context

Possibly related:
#8879
#8910
#8789 (comment)

Less likely related but will link anyways:
#8628

[jd-carroll]

@davidmurdoch I am seeing the same behavior related to sentry. The issue is (of course) opentelemetry. A number of the published modules list source maps, such as:

//# sourceMappingURL=internal-types.js.map

But inspecting the installed module, the source maps do not exist.

[kdy1]

Closing as duplicate

[jd-carroll]

@kdy1 duplicate to what?

[kdy1]

#8789

[swc-bot]

This closed issue has been automatically locked because it had no new activity for a month. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.