There is a compilation error

[dongj0316]

There is a compilation error, which seems to be the problem of esbuild. Is there any solution?

[dongj0316]

System info:

 System:
    OS: macOS 12.1
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory: 317.63 MB / 16.00 GB
    Shell: 5.8 - /bin/zsh
  Binaries:
    Node: 14.19.0 - ~/.nvm/versions/node/v14.19.0/bin/node
    Yarn: 1.22.17 - ~/.nvm/versions/node/v12.13.1/bin/yarn
    npm: 8.7.0 - ~/.nvm/versions/node/v14.19.0/bin/npm
  npmPackages:
    @vitejs/plugin-legacy: ^1.2.2 => 1.7.1 
    vite: ^2.4.2 => 2.9.1 

[hyrious]

It seems the () of a function iife expression will always be stripped when there's leading /* @__PURE__ */ and being used as value, idk. The code will be invalid when it is after export default.

const a = /* @__PURE__ */ function(){}()      // valid
export default /* @__PURE__ */ function(){}() // invalid

See it online.

This problem only happens in transform mode, since in build mode the default export will be transformed to export { default_export as default }.

[dongj0316]

@hyrious Yes, this is a syntax error 'uncaught syntax error: unexpected token ')'

[evanw]

Thanks for the report. This is a bug in esbuild. I will fix this in the next release. In the meantime, you should be able to work around this by changing export default ... into let someVar = ... followed by export { someVar as default }.