[Plugin development] Cargo test success, but wasm file failed, how to debug

[hahazexia]

I extended the official @swc/plugin-transform-imports plugin for my project. When I run cargo test during local development, everything works fine.

However, when I build it to a WASM file and publish it as an npm package, I encounter an issue. When I run npx swc ./test.js -o temp2.js --config-file .swcrc for testing, it fails with the error: [1] 49221 bus error npx swc ./test.js -o temp2.js --config-file .swcrc.

I tried adding some code to write logs to a local file, but nothing appears. It seems that WASM does not have permission to write logs to local files.

Does anyone know how to debug a WASM file?

[kdy1]

If it throws an error like bus error, it's very likely #5060