Not working with Cypress, webpack, swc-loader and @swc/core 1.3.39 and 1.3.40

[MattyBalaam]

We have attempted to upgrade from @swc/core from 1.3.38 to 1.3.39 and 1.3.40 but are now getting some compilation errors. If I remove the plugin from experimental.plugins then it runs

[MattyBalaam]

As a side-note I’ve attempted to run the tests in this repo. But it’s my first time running Rust and I’m not sure what I am doing. I kept getting missing package errors and followed instructions to add them as it happened, but am a bit stuck here:

[Szymon-dziewonski]

@MattyBalaam this is exactly same error I have when updating from swc-plugin-coverage-instrument version 0.0.14 into 0.0.15

[MattyBalaam]

This now has an issue in swc: swc-project/swc#7238

[MattyBalaam]

@kwonoj thank you for trying to track down this issue.

I have updated to @swc/core 1.3.55 and swc-plugin-coverage-instrumet 0.0.17but I am still seeing the error on my M1 Mac. It happenes in Cypress and also Jest tests.

Would it be helpful for me to create a test repo?

[kwonoj]

Looks like this issue have multiple things, the one fixed is swc-project/swc#7238. For the original one #200 (comment), I don't have an idea how plugin would affect those, since your screenshot points (): any => which is preserving typescript syntax, cause of ther error.

Plugin does not have way to control those. You'll probably need to investigate elsewhere.

[MattyBalaam]

My apologies, I have re-looked at the original issue I posted. The update some point over the last month when I have tried various swc updates the error changed to one about memory access and I had forgotten there was a different error message in my original post:

I see lots of messages like this now, I assume this is covered by other open issues?

thread '<unnamed>' panicked at 'failed to invoke plugin: failed to invoke plugin on 'Some("/Users/matthewbalaam/xxxxxx.cy.tsx")'

Caused by:
    0: failed to invoke `swc-plugin-coverage-instrument` as js transform plugin at ../../../node_modules/swc-plugin-coverage-instrument/target/wasm32-wasi/release/swc_plugin_coverage.wasm
    1: RuntimeError: out of bounds memory access
    2: heap_get_oob', /Users/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/swc-0.260.35/src/plugin.rs:219:14

[MattyBalaam]

Hmm, I’ve just tried a combination of @swc/core 1.3.39 or 1.3.40 and 0.0.15 to trace back the issue and the tests run fine for me with that combination, but not if I then bump to 0.0.17.

I get similar errors with 1.3.55 and 0.0.15 though. I’m not exactly sure which version starts breaking, but with 1.3.45 the terminal just gets to a point where it stalls before running tests.

Hope this is helpful in some way.

[MattyBalaam]

With the latest v0.0.18 release the plugin now seems to work with a wide range of swc releases, including the latest.